NATURAL GAS METERS

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 Natural Gas Meter Contents
FN G2,5
FN G4 FN G2,5 / FN G4 / FN G2,5-HT / FN G4-HT 1
FN G2,5-HT
FN G4-HT
Technical Features / General Features 1
Error Curve and Pressure Loss Curve 2
Points to be considered / Technical Drawings 2
FN G6 3
FN G6
Technical Features / General Features 3
Error Curve and Pressure Loss Curve 4
Points to be considered / Technical Drawings 4
FN G10 5
Technical Features General Features 5
Error Curve and Pressure Loss Curve 6
FN G10
Points to be considered / Technical Drawings 6
FN G4-CPPU V1 7
Technical Features / General Features 7
Error Curve and Pressure Loss Curve 8
Points to be considered / Technical Drawings 8
FN G4-CPPU V2 9
FN G1.6-AB
FN G2.5-AB Technical Features / General Features 9
FN G4-AB Error Curve and Pressure Loss Curve 10
Points to be considered / Technical Drawings 10
FN G4-CPPU V3 11
Technical Features / General Features 11
Error Curve and Pressure Loss Curve 12
Prepaid Compact Type Natural Gas Meters Points to be considered / Technical Drawings 12
FN G4-CPPU V1
FN G6-CPPU V2 13
Technical Features / General Features 13
Error Curve and Pressure Loss Curve 14
Points to be considered / Technical Drawings 14
FNG PPU 15
Technical Features / General Features 15
FN G4-CPPU V2 Loading Credit On Prepayment Unit 16
FN G4-CPPU V3 Assembling of Gas Meter Module 16
Problems that may be encountered during use 17
and methods to resolve these problems
Technical Drawings 17
FN G1.6 AB / FN G2.5 AB / FN G6 AB 18
FN G6-CPPU
Technical Features 18
General Features 19
Error Curve and Pressure Loss Curve 19
Technical Drawings 20

Prepaid Module
FNG-PPU G4-G25

Ps: We haven't got production of testing device for gas meter. For details please directly contact with
our factory
 NATURAL GAS METERS

FN G2.5 / FN G4 Technical Features

FN G2.5-HT / FN G4-HT Type FN G2.5 FN G4
FN G2.5-HT FN G4-HT
Gas Types Natural Gas - Air Gas
Q Min 0.025m3 / h 0.04m3 / h
Q Max 3
4m / h 6m3 / h
Measuring Interval 3 3
0.025m /h - 4m /h 0.040m3/h - 6m3/h
Max. Operating Pressure 0.5 bar
Leakage Test Pressure Value 750 mbar
Measuring Volume 1.2 dm3
Operating Temperature -25 Co, +55 Co
Mechanical M2
Electromagnetic E1
Storage Temeprature -30 Co, +70 Co
Body Galvanized 0,8mm Deep Extrusion Steel
Weight 2 kg.
• Connection points; manufactured as two outlet fittings
• As inner volume of 1.2 dm3 suits best to operating conditions, it can operate
in optimal rates during high haulage.

General Features Assembly

• Outer frame is made of deep drawing sheet and is dyed • Counter; assembled to stairwells inside buildings via a
with electrostatic powder paint. console or if out of the building inside an aired, sheeted
• Gas input and output fitting spindles are of 110 mm, G1 ’’, lightened sheet panel.
G1”, G ” (DN32, DN25, DN20) outer measurement. • The home type counter display (numarator) must be of
• In the case of reverse connect of gas meter (giving gas flow minimum 1,80m or maximum 2.0 m height.
from gas exit side); numarator doesn’t turn and gas meter • The counter should be assembled by means of a
doesn’t make record will be corrected as mentioned. connection console in horizontal position taking into
• Minimum pieces of engineering plastics are used on consideration the flow direction.
gas meter body • The out-of-building applications (external) of the counter
• The gas meter has a special magnetic transfer system Should be certainly executed by proper panels.
(stainless magnetic coupling) • The size of the counter panel should enable easy mounting,
• There is an long 360° rotary type operating mechanism repair and dismantling for maintenance.
used in inner mechanism for sensitive measuring. • There must be always a check valve on counter inlet.
• Counter structure is suitable for signalling regarding • The counter inlet connection must be assembled with a
prepaid systems (1imp 0,01m3). flexible hose made of stainless material (PVC covered or
• In virtue of above standard discs a comfortable counter without cover)
reading is provided. • The counter outlet connection should be connected to the
• Counter materials are selected among high resistant materials house inlet installation via a fitting.
in terms of unfavorable conditions. • Gaskets appropriate for natural gas (according to (TS 9808)
• Special fitting locking console sheet that is resistant to should be used on counter--installation connection fittings.
turning moments is delivered as standard piece together with
the counter for assembly and commissioning. Maintenance
• In virtue of its executed design and materials used it has •The device owner may clean the dirt on the counter with a
a lower pressure loss than indicated in EN 1359 Standards. wet cloth. External washing is not recommended.
• Measuring failure rate at 0,1 Qmax - Qmax interval is lower • As counters are mesuring devices, maintenance, repair and
than ±1,5 providing spare sparts are only carried out by the
• The meter is suitable for natural gas, air gas and LPG gas. manufacturing company based on the test results executed.
• HT series gas meter products has Pressure Measuring • Due to its structure the device does not require any
Points which described at EN 1359 clause 6.5.1. maintenance. Using manufacturer-approved filters on the
• HT series gas meter products are conformed to Resistance inlets and outlets of the natural gas meter will prolong the life
to High Ambient Temperatures which described at EN 1359 of the device.
clause 6.5.5
• The Color of Gas Meter is RAL 7035.

Optionally(*);
• The color of gas meter can be changed upon request
• Pulser type counter body cover can be produced upon
request (1imp 0,01m3).

26/1
07/07
 NATURAL GAS METERS

Error Curve
% Error Pressure loss curve
3
mbar Presure loss
2,20
2,5
2,00
2
1,80
1,5
1,60
1
1,40
0,5
1,20
0
1,00
-0,5
0,80
-1
0,60
-1,5
0,40
-2
0,20
-2,5
-3 0 0.6 1.2 2.4 4.2 6
Q min 3 Q min 0,1 Q max 0,2 Q max 0,4 Q max 0,7 Q max Q max
Flow m3/hour
40 I/h 120I/h 600 I/h 1200 I/h 2400 I/h 4200 I/h 6000 I/h

Points to be considered
• The counter should be protected by an appropriate protective • Federal is not responsible for any damages arising from
panel from weather conditions, damages that may arise from impacts or falling during carrying after delivery and for any
accidents or from actions that could harm its operation deformations that may arise as a result of not deactivating
(impacts, vibrations, corrosion, very low or high temperatures, the device during the leakage test of the installation.
humidity, etc). • The assembly of the device should be carried out when
• Electric switches, counters, junction boxes, instruments and spatters and similar particles are removed and cleaned from
devices that operate with electricity such as bells should not the inside of the pipe
be placed close to the device. In obligatory circumstances • It is recommended to place filters in counter's inlets and
this distance should be minimum 1.5 meters. outlets in order to avoid the entrance of installation spatters
• It should not be forgotten that a direct or indirect interference and dust that may originate on lines. (A material available in
by unauthorized people during using phase will lead to penalty Federal Electric DGS Accessories. Delivered upon demand).
provisions.

FN G2.5 / FN G4
FN G2.5-HT / FN G4-HT

a
e
h

b c

FN G2,5 Dimensions
Connection Size e
FN G4
FN G2,5-HT
FN G4-HT DN32 DN25 DN20 G1 ”, G1”, G 3/4”, ISO 228-1:G7/8 219.5 110 193.2 135.5 167 67.5

26/2
 NATURAL GAS METERS

FN G6
Technical Features
Type FN G6
Gas Types Natural Gas- Air Gas
Q Min 0.06m3 / h
Q Max 10m3 / h
Measuring Interval 0.06m3/h - 10m3/h
Max. Operating Pressure 0.5 bar
Leakage Test Pressure Value 750 mbar
Measuring Volume 2.2 dm3
Operating Temperature -25 Co, +55 Co
Storing Temperature -30 Co, +70 Co
Body Deep Drawing Sheet Iron
Weight 3 kg.
• Connection points; manufactured as two outlet fittings.
• As inner volume of 2.2 dm3 suits best to operating conditions, it can operate
in optimal rates during high haulage.

PL-06
ZT-E4
AT TYPE APPROVED

General Features Assembly

• Outer frame is made of deep drawing sheet and is dyed • Counter; assembled to stairwells inside buildings via a
with electrostatic powder paint. console or if out of the building inside an aired, sheeted
• Gas input and output fitting spindles are of 110 mm. lightened sheet panel.
• In case that the gas meter is inverse connected (inflicting • The home type counter display (numarator) must be of
gas flow in gas output direction), the gas inner mechanism minimum 1,80m or maximum 2.0 m height.
does not allow gas transition and the numarator does not • The counter should be assembled by means of a
spin. connection console in horizontal position taking into
• Minimum pieces of engineering plastics are used on consideration the flow direction.
gas meter body • The out-of-building applications (external) of the counter
• The gas meter has a special magnetic transfer system Should be certainly executed by proper panels.
(stainless magnetic coupling) • The size of the counter panel should enable easy mounting,
• There is an long-lasting ellipse diaphragm in inner repair and dismantling for maintenance.
mechanism compatible and approved by standards • There must be always a check valve on counter inlet.
• Lateral operating seperators with adjustable joints for • The counter inlet connection must be assembled with a
sensitive measuring. flexible hose made of stainless material (PVC covered or
• Counter structure is suitable for signalling regarding without cover)
prepaid systems (1imp 0,01m3) • The counter outlet connection should be connected to the
• In virtue of above standard discs a comfortable counter house inlet installation via a fitting.
reading is provided • Gaskets appropriate for natural gas (according to (TS 9808)
• Counter materials are selected among high resistant materials should be used on counter--installation connection fittings.
in terms of unfavorable conditions.
• Special fitting locking console sheet that is resistant to Maintenance
turning moments is delivered as standard piece together with •The device owner may clean the dirt on the counter with a
the counter for assembly and commissioning. wet cloth. External washing is not recommended.
• In virtue of its executed design and materials used it has a • As counters are mesuring devices, maintenance, repair and
lower pressure loss than indicated in TS 5910 EN 1359 providing spare sparts are only carried out by the
Standards. manufacturing company based on the test results executed.
• Measuring failure rate at 0,1 Qmax - Qmax interval is lower • Due to its structure the device does not require any
than ±1,5 maintenance. Using manufacturer-approved filters on the
• The counter is suitable for natural gas, air gas and LPG gas inlets and outlets of the natural gas meter will prolong the life
of the device.
Optionally(*);
• The color of gas meter can be changed upon request
• Pulser type counter body cover can be produced upon
request (1imp 0,01m3).

26/3
07/07
 NATURAL GAS METERS
Error Curve Pressure loss curve
% Error mbar Pressure loss
5 2,20
4 2,00
3 1,80
2 1,60
1 1,40
0 1,20
-1 1,00
-2 0,80
-3 0,60
-4 0,40
-5 0,20

0 1 2 4 7 10 0 1 2 4 7 10
Flow m3/hour Flow m3/hour

Points to be considered
• The counter should be protected by an appropriate protective • Federal is not responsible for any damages arising from
panel from weather conditions, damages that may arise from impacts or falling during carrying after delivery and for any
accidents or from actions that could harm its operation deformations that may arise as a result of not deactivating
(impacts, vibrations, corrosion, very low or high temperatures, the device during the leakage test of the installation.
humidity, etc). • The assembly of the device should be carried out when
• Electric switches, counters, junction boxes, instruments and spatters and similar particles are removed and cleaned from
devices that operate with electricity such as bells should not the inside of the pipe
be placed close to the device. In obligatory circumstances • It is recommended to place filters in counter's inlets and
this distance should be minimum 1.5 meters. outlets in order to avoid the entrance of installation spatters
• It should not be forgotten that a direct or indirect interference and dust that may originate on lines. (A material available in
by unauthorized people during using phase will lead to penalty Federal Electric DGS Accessories. Delivered upon demand).
provisions.

FN G6

a e
h

b d

Dimensions
Connection Size e
FN G6
DN32 G1 ’’ 276 130 231 157 187 78.5

26/4
 NATURAL GAS METERS

FN G10
Technical Features
Type FN G10
Gas Types Natural Gas- Air Gas
Q Min 0.1m3 / h
Q Max 16m3 / h
Measuring Interval 0.1m3/h - 16m3/h
Max. Operating Pressure 0.5 bar
Leakage Test Pressure Value 750 mbar
Measuring Volume 5 dm3
Operating Temperature -25 Co, +55 Co
Storing Temperature -30 Co, +70 Co
Body Deep Drawing Sheet Iron
Weight 6.8 kg.
• Connection points; manufactured as two outlet fittings.
• As inner volume of 5 dm3 suits best to operating conditions, it can
operate in optimal rates during high haulage.
D06
07.122.62
AT TYPE APPROVED

General Features Assembly

• Outer frame is made of deep drawing sheet and is dyed • Counter; assembled to stairwells inside buildings via a
with electrostatic powder paint. console or if out of the building inside an aired, sheeted
• Gas input and output fitting spindles are of 280 mm.
• In case that the gas meter is inverse connected (inflicting lightened sheet panel.
gas flow in gas output direction), the gas inner mechanism • The home type counter display (numarator) must be of
does not allow gas transition and the numarator does not minimum 1,80m or maximum 2.0 m height.
spin. • The counter should be assembled by means of a
• Minimum pieces of engineering plastics are used on
gas meter body. connection console in horizontal position taking into
• The gas meter has a special magnetic transfer system consideration the flow direction.
(stainless magnetic coupling) • The out-of-building applications (external) of the counter
• There is an long-lasting ellipse diaphragm in inner Should be certainly executed by proper panels.
mechanism compatible and approved by standards • The size of the counter panel should enable easy mounting,
• Minimum horizontal friction lift and force mechanism
is used. repair and dismantling for maintenance.
• Counter structure is suitable for signalling regarding • There must be always a check valve on counter inlet.
prepaid systems (1imp 0,01m3) • The counter inlet connection must be assembled with a
• In virtue of above standard discs a comfortable counter flexible hose made of stainless material (PVC covered or
reading is Provided. without cover)
• Counter materials are selected among high resistant materials • The counter outlet connection should be connected to the
in terms of unfavorable conditions house inlet installation via a fitting.
• In virtue of its executed design and materials used it has • Gaskets appropriate for natural gas (according to (TS 9808)
a lower pressure loss than indicated in TS 5910 EN 1359 should be used on counter--installation connection fittings.
Standards
• Measuring failure rate at 0,1 Qmax - Qmax interval is lower Maintenance
than ±1,5 •The device owner may clean the dirt on the counter with a
• The counter is suitable for natural gas, air gas and LPG gas wet cloth. External washing is not recommended.
• As counters are mesuring devices, maintenance, repair and
Optionally(*); providing spare sparts are only carried out by the
• The color of gas meter can be changed upon request manufacturing company based on the test results executed.
• Pulser type counter body cover can be produced upon • Due to its structure the device does not require any
request (1imp 0,01m3). maintenance. Using manufacturer-approved filters on the
inlets and outlets of the natural gas meter will prolong the life
of the device.

26/5
07/07
 NATURAL GAS METERS
Error Curve Pressure loss curve
% Error mbar Pressure loss
5 2,20
4 2,00
3 1,80
2 1,60
1 1,40
0 1,20
-1 1,00
-2 0,80
-3 0,60
-4 0,40
-5 0,20

0 1,6 3,2 6,4 11,2 16 0 1,6 3,2 6,4 11,2 16

Flow m3/hour Flow m3/hour

Points to be considered
• The counter should be protected by an appropriate protective • Federal is not responsible for any damages arising from
panel from weather conditions, damages that may arise from impacts or falling during carrying after delivery and for any
accidents or from actions that could harm its operation deformations that may arise as a result of not deactivating
(impacts, vibrations, corrosion, very low or high temperatures, the device during the leakage test of the installation.
humidity, etc). • The assembly of the device should be carried out when
• Electric switches, counters, junction boxes, instruments and spatters and similar particles are removed and cleaned from
devices that operate with electricity such as bells should not the inside of the pipe
be placed close to the device. In obligatory circumstances • It is recommended to place filters in counter's inlets and
this distance should be minimum 1.5 meters. outlets in order to avoid the entrance of installation spatters
• It should not be forgotten that a direct or indirect interference and dust that may originate on lines. (A material available in
by unauthorized people during using phase will lead to penalty Federal Electric DGS Accessories. Delivered upon demand).
provisions.

FN G10
a e
h

b d

Dimensions
Connection Size e
FN G10
DN50 G2 345 280 395 186 214 93

26/6
 NATURAL GAS METERS

FN G4-CPPU V1 Technical Features

Gas Types Natural Gas- Air Gas
Q min 0.04m3/h
Q max 6m3/h
Max. Operating Pressure 500mbar
Measuring Volume 1.2dm3
Operating Temperature -25oC , +55oC
Body Deep Drawing Sheet Iron
Weight 2.2kg
Verification Qmin ±%3 (max)
Verification Qmax ±%1,5 (max)
Displayable Max. Value 99999,999
Resolution 0,001m3
Pressure Loss (for Q max) <2mbar
P valf 50mbar
Circuit Procesor based special design manufactured via SMD Technology
Power feeding 8,5 Ah long-lasting lithium main battery
1,2 Ah long-lasting lithium spare battery
1,5 F super capacitor
Display Special design advanced LCD,
Safety Flow consumption detection
Measuring Method Magnetic reading
Position Class IP54
Card Reader Smart card reader ISO7816 compatible
Data Safety Permanent memory unaffected from interuptions (EEPROM)
Resolution 0,01m3
Counter Safety Perception of cover and battery opening
Magnetic external impact detection

Prepaid Compact Natural Gas Meter: capacitor has been added into the system in order to keep
The design, R&D studies and manufacturing of FN G4-CPPU batteries working for many long years.
V1 gas meters have been carried out in Federal Elektrik facilities.
They are long-lasting devices executing sensitive and safe Using Features:
measurements. • The counter continuously monitors the credit status and
operating conditions and hinders gas usage by closing the
Area of Use: valf in the event that the credit is used up or upon any
FN G4-CPPU V1 gas meters are used for measuring the gas circumstances that may be harmful for the counter operation.
delivered to home type subscribers with low natural gas and • In the event that the credit falls under specified limits the
air gas consumption. They are developed according to needs subscriber
of distribution companies that perform sales on prepaid basis. is alerted as the LCD display turns on and off accordingly.
• A small portion (determined by the company) of the gas
General Features: purchased is stored by the company as spare on the
• The prepaid Compact Gas Meters consist of a mechanic subscription card. In the event that the subscriber has not
gas meter, special gas cutting valf that is placed into the purchased any new gas upon use up, he/she continues using
mechanic body and of the electronic prepay circuit. gas by loading the spare credit. This feature is important
• The mechanic counter is the unit that is measuring the as it prevents the subscriber, who might have forgotten to buy
consumed gas measuring the gas consumption at 0.001m3 new gas, from being left without gas during hours where gas
resolution. purchasing is not available.
• The electronic circuit magnetically reads the counter and
performs a credit facility. Safety Precautions:
• The gas cutting valve embedded into the mechanic counter • All connections of mechanic counter and valf of the prepaid
body cuts or releases the gas under the control of the system are hidden within the body. There is no possibility to
electronic circuit. reach these components without opening the cover.
• The electronic circuit is a smart circuit that operates with • The body cover is sealed which needs to be broken in order
a battery, enables credited gas consumption, processor to be able to open the cover. There is a separate seal for the
based, and that is operating with a software, equipped with battery cover that enables battery replaced by authorized
a LCD display and a smart card reader. personnel without the need of opening the body cover.
• The credit purchased via the smart card (subscription card) • Opening of body cover and battery cover is electronically
is loaded on the counter and the consumption is credited detected. The valf closes instantly hindering further gas
by regularly deducting the gas consumption accordingly. consumtion. After The end of operations of authorized personnel
If credit is used up, the system automatically cuts the gas by such as battery replacement, the closed valf is opened again
closing the valf. via an authorization card.
• Each counter has an individual subscription card. • If counter failures are deleted via authorization cards, the valf
• The system is of integrated structure with mechanical body does not open instantly. The subscription card must be inserted
and electronic components. into the counter as well to open the valf. This feature is important
• The counter battery is able to feed the system for minimum for avoiding gas leakage which also ensures that the subscriber
10 years without interruption and can be replaced if necessary. is at home when the valf is opened.
Furthermore, it is equipped with another spare battery in order • It detects extreme gas consumption. If a failure is detected
to ensure an uninterrupted operation of the counter. A super it cuts the gas end ensures the safety of the subscriber.
26/7
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 NATURAL GAS METERS
The Advantages of the Prepaid System: Credit selling points may be special selling desks of the entity,
• Saves the companies from visiting subscribers each month contractual banks, contractual markeets. It is very important
for counter- reading processes. subscribers will purchase their credit without standing in a
• The consumed gas amount is received in advance. queue andwithout being limited with working ours.
• Subscribers are not affected from price changes based on
the gas they have purchased. The subscriber monitoring system or subscriber management
• It supports a more conscious consumption. system is a computer supported system where all type of
• Saves subscribers from invoice payments and from processes related to subscribers are monitored and carried
inconveniences like chasing the last payable day of invoice. out. It is equippmed with an advanced data base management
• Saves entities from gas cutting-openig processes due to system where all past processes are recorded accordingly.
payment problems. Federal Elektrik offers a complete solution and a continuous
technical support to entities based on the subscriber
Components of Prepaid Gas Distribution System management system and the credit selling points.
Can be summarized as;
• Prepaid counter and credit loading card (subscriber card),
• Credit selling points,
• Subscriber monitoring system.

Error Curve Pressure loss curve

% Error mbar Pressure loss
5 2,20
4 2,00
3 1,80
2 1,60
1 1,40
0 1,20
-1 1,00
-2 0,80
-3 0,60
-4 0,40
-5 0,20

0 0.6 1.2 2.4 4.2 6 0 0.6 1.2 2.4 4.2 6

Flow m3/hour Flow m3/hour

Points to be considered
• The counter should be protected by an appropriate protective • Federal is not responsible for any damages arising from
panel from weather conditions, damages that may arise from impacts or falling during carrying after delivery and for any
accidents or from actions that could harm its operation deformations that may arise as a result of not deactivating
(impacts, vibrations, corrosion, very low or high temperatures, the device during the leakage test of the installation.
humidity, etc). • The assembly of the device should be carried out when
• Electric switches, counters, junction boxes, instruments and spatters and similar particles are removed and cleaned from
devices that operate with electricity such as bells should not the inside of the pipe
be placed close to the device. In obligatory circumstances • It is recommended to place filters in counter's inlets and
this distance should be minimum 1.5 meters outlets in order to avoid the entrance of installation spatters
• It should not be forgotten that a direct or indirect interference and dust that may originate on lines. (A material available in
by unauthorized people during using phase will lead to penalty Federal Electric DGS Accessories.
provisions. Delivered upon demand).
FN G4-CPPU V1
a d
c
h

Dimensions
Connection Size
FN CPPU G1 ”, G1”, G 3/4”
b G4 V1 DN50 DN25 DN20 ISO 228-1:G7/8 226 110 206 68,5 168

26/8
 NATURAL GAS METERS

FN G4-CPPU V2 Technical Features

Gas Types Natural Gas - Air Gas
Q min 0.04m3/h
Q max 6m3/h
Max. Operating Pressure 500mbar
Measuring Volume 1.2dm3
Operating Temperature -25oC , +55oC
Body Deep Drawing Sheet Iron
Weight 2.2kg
Verification Qmin ±%3 (max)
Verification Qmax ±%1,5 (max)
Max. Displayable Value 99999,999
Resolution 0,001m3
Pressure Loss(for Q max) <2mbar
P valf 500mbar
Circuit Procesor based special design manufactured via SMD Technology
Power feeding 8,5 Ah long-lasting lithium main battery
1,2 Ah long-lasting lithium spare battery
1,5 F super capacitor
Display Special design advanced LCD,
Display illuminating feature at dark
Safety Detection of extreme consumption and gas leakage
Measuring Method Optical reading
Position Class IP54
Card Reader ISO7816 compatible smart card reader
Data Safety Permanent memory unaffected from interruptions (EEPROM, DATA FLASH)
Resolution 0,001m3
Counter Safety Detection of cover and battery cover opening
Perception of optical reading failures
Optionel Features Wireless M-BUS remote reading and management
Remote software updating
Reading gas temperature, correction process according to gas temperature

Prepaid Compact Natural Gas Meter: • The counter battery is able to feed the system for minimum
The design, R&D studies and manufacturing of FN G4-CPPU V2 10 years without interruption and can be replaced if necessary.
gas meters have been carried out in Federal Elektrik facilities. Furthermore, it is equipped with another spare battery in order to
They are long-lasting devices executing sensitive and safe ensure an uninterrupted operation of the counter. A super
measurements. capacitor has been added into the system in order to keep
batteries working for many long years.
Area of Use:
FN G4-CPPU V2 gas meters are used for measuring the gas Optionel Features:
delivered to home type subscribers with low natural gas and • Optionel gas temperature measuring and correcting process
air gas consumption. They are developed according to needs according to
of distribution entities that perform sales on prepaid basis. Temperature.
• Wireless M-BUS remote reading and remote management,
General Features: • Wireless M-BUS remote software updating.
• The prepaid Compact Gas Meters consist of a mechanic gas
meter, special gas cutting valf that is placed into the mechanic Using Features:
body and of the electronic prepay circuit. • The counter continuously monitors the credit status and
• The mechanic counter is the unit that is measuring the operating conditions and hinders gas usage by closing the
consumed gas measuring the gas consumption at 0.001m3 valf in the event that the credit is used up or upon any
resolution. circumstances that may be harmful for the counter operation.
• The electronic circuit magnetically reads the counter and • In the event that the credit falls under specified limits the
performs a credit facility. subscriber is alerted as the LCD display turns on and off
• The gas cutting valve embedded into the mechanic counter accordingly.
body cuts or releases the gas under the control of the • A small portion (determined by the company) of the gas
electronic circuit. purchased is stored by the company as spare on the
• The electronic circuit is a smart circuit that operates with subscription card. In the event that the subscriber has not
a battery, enables credited gas consumption, processor based, purchased any new gas upon use up, he/she continues using
and that is operating with a software, equipped with a LCD gas by loading the spare credit. This feature is important
display and a smart card reader. as it prevents the subscriber, who might have forgotten to buy
• The credit purchased via the smart card (subscription card) new gas, from being left without gas during hours where gas
is loaded on the counter and the consumption is credited purchasing is not available.
by regularly deducting the gas consumption accordingly.
If credit is used up, the system automatically cuts the gas by Safety Precautions:
closing the valf. • All connections of mechanic counter and valf of the prepaid
• Each counter has an individual subscription card. system are hidden within the body. There is no possibility to reach
• The system is of integrated structure with mechanical body thesecomponents without opening the cover.
and electronic components. • The body cover is sealed which needs to be broken in order to

26/9
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 NATURAL GAS METERS
be able to open the cover. There is a separate seal for the battery inconveniences like chasing the last payable day of invoice.
cover that enables battery replaced by authorized personnel • Saves entities from gas cutting-openig processes due to
without the need of opening the body cover. payment problems.
• Opening of body cover and battery cover is electronically
detected. Components of Prepaid Gas Distribution System Can be
The valf closes instantly hindering further gas consumtion. After summarized as;
The end of operations of authorized personnel such as battery • Prepaid counter and credit loading card (subscriber card),
replacement, the closed valf is opened again via an authorization • Credit selling points,
card. • Subscriber monitoring system.
• If counter failures are deleted via authorization cards, the valf
does not open instantly. The subscription card must be inserted Credit selling points may be special selling desks of the entity,
into the counter as well to open the valf. This feature is important contractual banks, contractual markeets. It is very important
for avoiding gas leakage which also ensures that the subscriber subscribers will purchase their credit without standing in a
is at home when the valf is opened. queue and without being limited with working ours.
• It detects extreme gas consumption. If a failure is detected
it cuts the gas end ensures the safety of the subscriber. The subscriber monitoring system or subscriber management
system is a computer supported system where all type of
The Advantages of the Prepaid System: processes related to subscribers are monitored and carried
• Saves the companies from visiting subscribers each month out. It is equippmed with an advanced data base management
for counter- reading processes. system where all past processes are recorded accordingly.
• The consumed gas amount is received in advance.
• Subscribers are not affected from price changes based on Federal Elektrik offers a complete solution and a continuous
the gas they have purchased. technicalsupport to entities based on the subscriber
• It supports a more conscious consumption. management system and the credit selling points.
• Saves subscribers from invoice payments and from
Error Curve Pressure loss curve
% Error mbar Pressure loss
5 2,20
4 2,00
3 1,80
2 1,60
1 1,40
0 1,20
-1 1,00
-2 0,80
-3 0,60
-4 0,40
-5 0,20

0 0.6 1.2 2.4 4.2 6 0 0.6 1.2 2.4 4.2 6

Flow m3/hour Flow m3/hour

Points to be considered • Federal is not responsible for any damages arising from
• The counter should be protected by an appropriate protective impacts or falling during carrying after delivery and for any
panel from weather conditions, damages that may arise from deformations that may arise as a result of not deactivating
accidents or from actions that could harm its operation the device during the leakage test of the installation.
(impacts, vibrations, corrosion, very low or high temperatures,
humidity, etc). • The assembly of the device should be carried out when
• Electric switches, counters, junction boxes, instruments and spatters and similar particles are removed and cleaned from
devices that operate with electricity such as bells should not the inside of the pipe
be placed close to the device. In obligatory circumstances
this distance should be minimum 1.5 meters • It is recommended to place filters in counter's inlets and
• It should not be forgotten that a direct or indirect interference outlets in order to avoid the entrance of installation spatters
by unauthorized people during using phase will lead to penalty and dust that may originate on lines. (A material available in
provisions. Federal Electric DGS Accessories. Delivered upon demand).
FN G4-CPPU V2
d
a c
h

Dimensions
Connection Size
FN CPPU G1 ”, G1”, G 3/4”
G4 V2 DN32 DN25 DN20 ISO 228-1:G7/8 226 110 206 68,5 168

26/10
 NATURAL GAS METERS

FN G4-CPPU V3 Technical Features

Gas Types Natural Gas - Air Gas
Q min 0.04m3/h
Q max 6m3/h
Max. Operating Pressure 500mbar
Measuring Volume 1.2dm3
Operating Temperature -25oC , +55oC
Body Deep Drawing Sheet Iron
Weight 2.2kg
Verification Qmin ±%3 (max)
Verification Qmax ±%1,5 (max)
Max. Displayable Value 99999,999
Resolution 0,001m3
Pressure Loss(for Q max) <2mbar
P valf 500mbar
Circuit Procesor based special design manufactured via SMD Technology
Power feeding 8,5 Ah long-lasting lithium main battery
1,2 Ah long-lasting lithium spare battery
1,5 F super capacitor
Display Special design advanced LCD,
Display illuminating feature at dark
Safety Detection of extreme consumption and gas leakage
Measuring Method Optical reading
Position Class IP54
Card Reader ISO7816 compatible smart card reader
Data Safety Permanent memory unaffected from interruptions (EEPROM, DATA FLASH)
Resolution 0,001m3
Counter Safety Detection of cover and battery cover opening
Perception of optical reading failures
Optionel Features Wireless M-BUS remote reading and management
Reading gas temperature, correction process according to gas temperature

Prepaid Compact Natural Gas Meter: • The counter battery is able to feed the system for minimum
The design, R&D studies and manufacturing of FN G4-CPPU V3 10 years without interruption and can be replaced if necessary.
gas meters have been carried out in Federal Elektrik facilities. Furthermore, it is equipped with another spare battery in order to
They are long-lasting devices executing sensitive and safe ensure an uninterrupted operation of the counter. A super
measurements. capacitor has been added into the system in order to keep
batteries working for many long years.
Area of Use:
FN G4-CPPU V3 gas meters are used for measuring the gas Optionel Features:
delivered to home type subscribers with low natural gas and • Optionel gas temperature measuring and correcting process
air gas consumption. They are developed according to needs according to
of distribution entities that perform sales on prepaid basis. Temperature.
• Wireless M-BUS remote reading and remote management,
General Features:
• The prepaid Compact Gas Meters consist of a mechanic gas Using Features:
meter, special gas cutting valf that is placed into the mechanic • The counter continuously monitors the credit status and
body and of the electronic prepay circuit. operating conditions and hinders gas usage by closing the
• The mechanic counter is the unit that is measuring the valf in the event that the credit is used up or upon any
consumed gas measuring the gas consumption at 0.001m3 circumstances that may be harmful for the counter operation.
resolution. • In the event that the credit falls under specified limits the
• The electronic circuit magnetically reads the counter and subscriber is alerted as the LCD display turns on and off
performs a credit facility. accordingly.
• The gas cutting valve embedded into the mechanic counter • A small portion (determined by the company) of the gas
body cuts or releases the gas under the control of the purchased is stored by the company as spare on the
electronic circuit. subscription card. In the event that the subscriber has not
• The electronic circuit is a smart circuit that operates with purchased any new gas upon use up, he/she continues using
a battery, enables credited gas consumption, processor based, gas by loading the spare credit. This feature is important
and that is operating with a software, equipped with a LCD as it prevents the subscriber, who might have forgotten to buy
display and a smart card reader. new gas, from being left without gas during hours where gas
• The credit purchased via the smart card (subscription card) purchasing is not available.
is loaded on the counter and the consumption is credited
by regularly deducting the gas consumption accordingly. Safety Precautions:
If credit is used up, the system automatically cuts the gas by • All connections of mechanic counter and valf of the prepaid
closing the valf. system are hidden within the body. There is no possibility to reach
• Each counter has an individual subscription card. thesecomponents without opening the cover.
• The system is of integrated structure with mechanical body • The body cover is sealed which needs to be broken in order to
and electronic components. be able to open the cover. There is a separate seal for the battery

26/11
07/07
 NATURAL GAS METERS
cover that enables battery replaced by authorized personnel inconveniences like chasing the last payable day of invoice.
without the need of opening the body cover. • Saves entities from gas cutting-openig processes due to
• Opening of body cover and battery cover is electronically payment problems.
detected.
The valf closes instantly hindering further gas consumtion. After Components of Prepaid Gas Distribution System Can be
The end of operations of authorized personnel such as battery summarized as;
replacement, the closed valf is opened again via an authorization • Prepaid counter and credit loading card (subscriber card),
card. • Credit selling points,
• If counter failures are deleted via authorization cards, the valf • Subscriber monitoring system.
does not open instantly. The subscription card must be inserted
into the counter as well to open the valf. This feature is important Credit selling points may be special selling desks of the entity,
for avoiding gas leakage which also ensures that the subscriber contractual banks, contractual markeets. It is very important
is at home when the valf is opened. subscribers will purchase their credit without standing in a
• It detects extreme gas consumption. If a failure is detected queue and without being limited with working ours.
it cuts the gas end ensures the safety of the subscriber.
The subscriber monitoring system or subscriber management
The Advantages of the Prepaid System: system is a computer supported system where all type of
• Saves the companies from visiting subscribers each month processes related to subscribers are monitored and carried
for counter- reading processes. out. It is equippmed with an advanced data base management
• The consumed gas amount is received in advance. system where all past processes are recorded accordingly.
• Subscribers are not affected from price changes based on
the gas they have purchased. Federal Elektrik offers a complete solution and a continuous
• It supports a more conscious consumption. technicalsupport to entities based on the subscriber
• Saves subscribers from invoice payments and from management system and the credit selling points.

Error Curve Pressure loss curve

% Error mbar Pressure loss
5 2,20
4 2,00
3 1,80
2 1,60
1 1,40
0 1,20
-1 1,00
-2 0,80
-3 0,60
-4 0,40
-5 0,20

0 0.6 1.2 2.4 4.2 6 0 0.6 1.2 2.4 4.2 6

Flow m3/hour Flow m3/hour

Points to be considered • Federal is not responsible for any damages arising from
• The counter should be protected by an appropriate protective impacts or falling during carrying after delivery and for any
panel from weather conditions, damages that may arise from deformations that may arise as a result of not deactivating
accidents or from actions that could harm its operation the device during the leakage test of the installation.
(impacts, vibrations, corrosion, very low or high temperatures,
humidity, etc). • The assembly of the device should be carried out when
• Electric switches, counters, junction boxes, instruments and spatters and similar particles are removed and cleaned from
devices that operate with electricity such as bells should not the inside of the pipe
be placed close to the device. In obligatory circumstances
this distance should be minimum 1.5 meters • It is recommended to place filters in counter's inlets and
• It should not be forgotten that a direct or indirect interference outlets in order to avoid the entrance of installation spatters
by unauthorized people during using phase will lead to penalty and dust that may originate on lines. (A material available in
provisions. Federal Electric DGS Accessories. Delivered upon demand).
FN G4-CPPU V3
d
a c
h

Dimensions
Connection Size
FN CPPU G1 ”, G1”, G 3/4”
G4 V3 DN32 DN25 DN20 ISO 228 : 1:G 7/8 226 110 206 68,5 168
b

26/12
 NATURAL GAS METERS

FN G6-CPPU V2 Technical Features

Gas Types Natural Gas - Air Gas
Q min 0.06m3/h
Q max 10m3/h
Max. Operating Pressure 500mbar
Measuring Volume 2.2dm3
Operating Temperature -25oC, +55oC
Body Deep Drawing Sheet Iron
Weight 3.2kg
Verification Qmin ±%3 (max)
Verification Qmax ±%1,5 (max)
Max. Displayable Value 99999,999
Resolution 0,001m3
Pressure Loss (for Q max) <2mbar
P Valf 500mbar
Circuit Procesor based special design manufactured via SMD Technology
Power Feeding 8,5 Ah long-lasting lithium main battery
1,2 Ah long-lasting lithium spare battery
1,5 F super capacitor
Display Special design advanced LCD,
Display illuminating feature at dark
Safety Detection of extreme consumption and gas leakage
Measuring Method Optical reading
Position Class IP54
Card Reader ISO7816 compatible smart card reader
Data Safety Permanent memory unaffected from interruptions (EEPROM, DATA FLASH)
Resolution 0,001m3
Counter Safety Detection of cover and battery cover opening
Perception of optical reading failures
Optionel Features Wireless M-BUS remote reading and management
Remote software updating
Reading gas temperature, correction process according to gas temperature

Prepaid Compact Natural Gas Meter: • The counter battery is able to feed the system for minimum
The design, R&D studies and manufacturing of FN G6-CPPU 10 years without interruption and can be replaced if necessary.
gas meters have been carried out in Federal Elektrik facilities. Furthermore, it is equipped with another spare battery in order
They are long-lasting devices executing sensitive and safe to ensure an uninterrupted operation of the counter. A super
measurements. capacitor has been added into the system in order to keep
batteries working for many long years.
Area of Use:
FN G6-CPPU gas meters are designed according to large Optionel Features:
Residences and small entities and is used for the measuring • Optionel gas temperature measuring and correcting process
of natural gas and air gas delivered to subscribers. They are according to
developed according to needs of distribution entities that Temperature.
perform sales on prepaid basis. • Wireless M-BUS remote reading and remote management,
• Wireless M-BUS remote software updating.
General Features:
• The prepaid Compact Gas Meters consist of a mechanic gas Using Features:
meter, special gas cutting valf that is placed into the mechanic • The counter continuously monitors the credit status and operating
body and of the electronic prepay circuit. conditions and hinders gas usage by closing the valf in the event
• The mechanic counter is the unit that is measuring the that the credit is used up or upon any circumstances that may
consumed gas measuring the gas consumption at 0.001m3 be harmful for the counter operation.
resolution. • In the event that the credit falls under specified limits the
• The electronic circuit magnetically reads the counter and subscriber is alerted as the LCD display turns on and off
performs a credit facility. accordingly.
• The gas cutting valve embedded into the mechanic counter • A small portion (determined by the company) of the gas
body cuts or releases the gas under the control of the purchased is stored by the company as spare on the subscription
electronic circuit. card. In the event that the subscriber has not purchased any
• The electronic circuit is a smart circuit that operates with new gas upon use up, he/she continues using gas by loading
a battery, enables credited gas consumption, processor based, the spare credit. This feature is important as it prevents the
and that is operating with a software, equipped with a LCD subscriber, who might have forgotten to buy new gas,
display and a smart card reader. from being left without gas during hours where gas purchasing
• The credit purchased via the smart card (subscription card) is not available.
is loaded on the counter and the consumption is credited • All connections of mechanic counter and valf of the prepaid
by regularly deducting the gas consumption accordingly. system are hidden within the body. There is no possibility to
If credit is used up, the system automatically cuts the gas by reach these components without opening the cover.
closing the valf. • The body cover is sealed which needs to be broken in order
• Each counter has an individual subscription card. to be able to open the cover. There is a separate seal for the
• The system is of integrated structure with mechanical body battery cover that enables battery replaced by authorized
and electronic components. personnel without the need of opening the body cover.
26/13
07/07
 NATURAL GAS METERS
• Opening of body cover and battery cover is electronically • Saves entities from gas cutting-openig processes due to
detected. payment problems.
The valf closes instantly hindering further gas consumtion. After
The end of operations of authorized personnel such as battery Components of Prepaid Gas Distribution System
replacement, the closed valf is opened again via an authorization Can be summarized as;
card. • Prepaid counter and credit loading card (subscriber card),
• If counter failures are deleted via authorization cards, the valf • Credit selling points,
does not open instantly. The subscription card must be inserted • Subscriber monitoring system.
into the counter as well to open the valf. This feature is important Credit selling points may be special selling desks of the entity,
for avoiding gas leakage which also ensures that the subscriber
is at home when the valf is opened. contractual banks, contractual markeets. It is very important
•It detects extreme gas consumption. If a failure is detected subscribers will purchase their credit without standing in a
it cuts the gas end ensures the safety of the subscriber. queue and without being limited with working ours.

The Advantages of the Prepaid System: The subscriber monitoring system or subscriber management
• Saves the companies from visiting subscribers each month system is a computer supported system where all type of
for counter- reading processes. processes related to subscribers are monitored and carried
• The consumed gas amount is received in advance. out. It is equippmed with an advanced data base management
• Subscribers are not affected from price changes based on system where all past processes are recorded accordingly.
the gas they have purchased. Federal Elektrik offers a complete solution and a continuous
• It supports a more conscious consumption. technical support to entities based on the subscriber
• Saves subscribers from invoice payments and from management system and the credit selling points.
inconveniences like chasing the last payable day of invoice.

Error Curve Pressure loss curve

% Error mbar Pressure loss
5 2,20
4 2,00
3 1,80
2 1,60
1 1,40
0 1,20
-1 1,00
-2 0,80
-3 0,60
-4 0,40
-5 0,20

0 1 2 4 7 10 0 1 2 4 7 10
Flow m3/hour Flow m3/hour

Points to be considered • Federal is not responsible for any damages arising from
• The counter should be protected by an appropriate protective impacts or falling during carrying after delivery and for any
panel from weather conditions, damages that may arise from deformations that may arise as a result of not deactivating
accidents or from actions that could harm its operation the device during the leakage test of the installation.
(impacts, vibrations, corrosion, very low or high temperatures,
humidity, etc). • The assembly of the device should be carried out when
• Electric switches, counters, junction boxes, instruments and spatters and similar particles are removed and cleaned from
devices that operate with electricity such as bells should not the inside of the pipe
be placed close to the device. In obligatory circumstances
this distance should be minimum 1.5 meters • It is recommended to place filters in counter's inlets and
• It should not be forgotten that a direct or indirect interference outlets in order to avoid the entrance of installation spatters
by unauthorized people during using phase will lead to penalty and dust that may originate on lines. (A material available in
provisions. Federal Electric DGS Accessories. Delivered upon demand).
FN G6-CPPU d
a c
h

Dimensions
Connection Size
FN CPPU
G6 DN32 G1 ’’ 276 130 231 78 195
b

26/14
 NATURAL GAS METERS

Prepayment Module,
Federal prepayment module provides conscious gas comsuption and thus
the most efficient use of energy resources by sensitive, accurate and relable
measurement.
This module has been designed using the latest technology and
manufactured in accordance with international standards
Prepayment module works on the basis of consumer consuption from the
credit which was purchased and loaded to module and decreased during
the gas consumption and breaked the gas when credit is finished.
Consumer goes to Credit Loading Centers and is loaded the credits to his
consumer card.When the consumer card is inserted in the prepayment
unit the credits is transfered to the device.

User of Prepayment Unit,

• Is freed form following of bills and last payment date
• Contribute to his budget and country by more reliable and sensitive
measure
FNG PPU • Is not affected by price increases because of advance payment.

General Features: • It can hold all care and interventions on its memory in details.
• Lifetime of the device is ten years In such cases, it prevents gas passage by shutting down the
• Displays real time-hour; features minimum deviation in date device valve. The device operates on a lithium battery
time (3.6V 8.5 Ah). A reserve battery is provided in case of battery
• Has a permanent memory for storage of information malfunctions or replacements in order to keep the device
• The position of the valve is shown on the LCD by an icon operating. In case of weak battery, the device warns the user
indicating that the valve is on or off via a statement that appears on the screen. It shuts down the
• The status of the battery is shown on the LCD screen in valve when the battery is to be out and disallows gas use.
three stages • In case of disconnection or malfunction with the cable
• The remaining credits are shown on the LCD screen in six between the mechanical meter and the prepayment module,
digits the device valve is shut down and the relevant warnings are
• The information on credit loading and device is retrieved via displayed.
a button on the device • When the amount of credit on the device falls below a certain
• Any error or warning is communicated by ! sign. This remains limit, the screen displays a warning accordingly.
on until maintenance or care by a service team. The device
is able to keep consumption statistics for 6 months.
Type : FNG PPU G4-G25
1.clack upper socket Operating bar : Pmax = 0,5 Bar
Accuracy : 0.01 m3
2.LCD Screen Measurement type : Pulse
Screen : Special design LCD
3.Menu Button Relative humidity : %93
4.Smart card slot Room Temperature : -20°C ... +55°C
5.Clack bottom socket Storage temp : -30°C ... +70°C
Material : ABS, UV-V0
Communication : RS232 (For factory adjustment)
Data protection : EEPROM, reserve battery
6.Pulse cable
Card type : Encrypted smart card 7816
1-2-3 compatible
Metering interval : Q min : 0,040 m3 / hour
Qmax : 40 m3 / hour
Battery : 3.6V, 8.5 Ah lithium battery >10 Years
Protection class : IP54
Weight : G4-G6 G10-G16 G25
1,8 kg 2,1 kg 2,2 kg

1- Clack upper socket: Outlet end

2- LCD: The screen that displays information including the
amount of consumption in terms of cubic meter, credits
and date
3- Menu button: Ensures sequential display of information
on total amount of consumption, remaining credits and
date; credit is loaded by pressing this button after insertion
of the smart card
4- Smart card slot: the section where the smart card is
inserted
5- Clack bottom socket: Outset end (depends on the size
of the meter)
6- Pulse cable: The cable that carries the gas consumption
signal from the mechanical meter to the prepayment module.
26/15
07/07
 NATURAL GAS METERS
Loading Credit On Prepayment Unit

The card is inserted on the smart card A few seconds pass after the insertion The card is taken off
slot on the prepayment module in a way of the card to ensure that the meter the device.
that the chip stays up and front. loads credits.
Four different situations may be encountered when the card Use of prepayment module
is inserted on the device.; There are two types of credits on the card.
Main credit
1. Loading main credit on the module When the main credit is There is no special condition to load this type of credit. If the
loaded on the meter, the amount of credit is displayed on the card has this type of credit, it is activated when the card is
screen subsequent to the appearance of the statement “credit inserted on the device.
has been loaded.” The total credit on the device increases in Reserve credit
the amount of the loaded credit. Subsequently, the total amount To load this credit, the amount of the credit on the device
of credit is displayed on the screen.. should fall below a certain limit. The subscriber keeps the
amount of credit allocated by the relevant office and seller as
2. Loading the reserve credit on the module The amount of reserve credit on his or her card. This is for emergency use.
loaded credit is displayed on the screen when the reserve For example:
credit is loaded in the aftermath of the statement “reserve Let us assume that no credit is left on the card and that the
credit has been loaded. The total credit on the device increases reserve credit limit set by the seller is 5 cubic meters. A 15
in the amount of the loaded credit. Subsequently, the total cubic meter credit purchased by the subscriber is loaded on
amount of credit is displayed on the screen. Reserve credit the card to meet the main and reserve credits (5 cubic
may be loaded when the credit on the device falls below the meters is reserve and 10 cubic meters is main). Unless the
critical level and the device screen blinks for warning. reserve credit is used, the subsequent loads are added to the
main credits. The reserve credit saves the subscribers in case
3. Failure to load credit If no credit available on the card, the of emergencies. In general, it provides enough credit sufficient
screen displays “subscriber.” In this case, no credit could be for a few days of use.
loaded on the device. No credit can be loaded on the device Modular unit testing information
if the amount of credit on the device is not below the critical For the sake of user and device safety, the following standards
level despite that the card is able to load reserve credit. have been complied with and the relevant tests have been
Subsequently, the total amount of credit is displayed on the run in the laboratories.
screen. Climate tests
IEC 60068-2-2 (15) Dry heat
4. Error An error message appears on the screen in case of IEC 60068-2-1 (14) Cold
malfunction withthe card or its early withdrawal. This error is IEC 60068-2-78 (20) Damphead, steady-state.
expressed with XATO and an error number. For instance, IEC 60068-2-30 (16) Damphead, cyclic. (condensing)
XATO 01. Performance tests
If the device valve is shut down because of non-availability of OIMLR 137-1 A.8 Performance Test (Battery powered
credit, the valve will reopens and gas will be passed through instrument IEC 60068-2-
when credit is loaded. The valve left shut down after technical 31 Mechanical Shock IEC 60068-2-64 Vibration Random
service will reopen when the card is inserted provided that EMU Tests
there is no preventing problem. IEC 61000-4-3 (24) Radiated, radio frequency, electromagnetic
fields.
IEC 61000-4-2 (23) Electrostatic discharge, disturbance test
Asembling of Gas Meter Module
Flange
Gas intake direction
• Mount the hanger sheet (A) to the wall (*)
• Wrap the socket (B) notch with Teflon band for leakage-proof
• Combine module socket (C) with the socket (B) and tighten (max
40Nmtork)
• Connection sleeve (B) module to the meter socket (D) by placing a gasket
(E) and tighten it (max 110Nm torque)
• Connect the meter phase inlet socket (D1) via gasket (E1) and flex pipe
(F) and tighten (max 110Nm torque)
• Place the meter on the hanger slot (G). To make sure that the meter does
not come out, tighten the screw (H) from above and the other (H1) from the
bottom.
Pulse Unit • Place the cabled socket (L) on the numerator (Look at the table-1 / page 15)
(Look at the
table-1 / • Screw the socket and cover it with its fuze (K).
page15) PS: This installation and assembly applies to G4-G6
models (*) There is no console hanger in G10 model.

26/16
 NATURAL GAS METERS
IMPULSE SOCKET OF PREPAYMENT UNITS
V1 (G4) V2 (G4) V2 (G6) V2 (G10)
flange
(2)
PREPAYMENT UNITS

PREPAYMENT
UNIT VERSION

pulse pulse pulse pulse

unit unit unit unit
Prepayment Unit
Outher Dimensions (2) 1'' 1'' 1'' 1 ''

Table1:

Problems that may be encountered during use and methods to resolve these problems
Problem Reason Solution
Press menu buton; If still no display
No display on screen Call tech service
Battery may be dead
Battery sign displays
Battery may be out Call tech service
No battery
No gas flow, though No gas on network or the device on Call tech service
Credit available Service status

! sign appears Service warning: A failure has occured. Call tech service
On the screen For troubleshooting, please check SRVC code.
Screen blinks Credit below critical level Load the credit

sign on Screen Out of credit if no other

Load the credit
and no gas flow service warning

A XATO warning Along with

Try again after inserting the card
a number Appears on the The card may be inserted wrong; Card
correctly; if the error persists, call
screen When the card may be broken
the office To replace your card
inserted
a d

b c
outlet
32,5
h1
h

17

inlet

Connection Size Dimensions

Type
inlet outlet h h1 a b c d
FNG-PPU
G4-G6 DN25 1‘‘ 1‘‘ 164.5 115 140 85 55 140
FNG-PPU
DN40 1½‘‘ 1 ½‘‘ 164.5 115 140 85 55 140
G10-G16
FNG-PPU DN50 2‘‘ 2‘‘ 164.5 115 140 85 55 140
G25

26/17
07/07
 NATURAL GAS METERS

FN G1.6-AB Technical Features

Type FN G1.6-AB
Gas Types Natural Gas- Air Gas
Q Min 0,016m3 / h
Q Max 2,5m3 / h
Measuring Interval 0,016m3/h - 2,5m3/h
Max. Operating Pressure 0,5 bar
Leakage Test Pressure Value 750 mbar
Measuring Volume 0,7 dm3
Qmin £ Q < 0.1 Qmax 3%
0.1 Qmax £ Q £ Qmax 1,5%
Operating Temperature -25 Co, +60 Co
Storing Temperature -30 Co, +70 Co
Maximum Totalizer Capacity 99999,999m3
Union Pipe & Nut 3/4’’
Flow Direction Option (Left Type or Right Type)
Body Aluminium Die Casting
Weight 1,5 kg.

FN G2.5-AB Technical Features

Type FN G2.5-AB
Gas Types Natural Gas- Air Gas
Q Min 0,025m3 / h
Q Max 4,0m3 / h
Measuring Interval 0,025m3/h - 4,0m3/h
Max. Operating Pressure 0,5 bar
Leakage Test Pressure Value 750 mbar
Measuring Volume 1,2 dm3
Qmin £ Q < 0.1 Qmax 3%
0.1 Qmax £ Q £ Qmax 1,5%
Operating Temperature -25 Co, +60 Co
Storing Temperature -30 Co, +70 Co
Maximum Totalizer Capacity 99999,999m3
Union Pipe & Nut 3/4’’
Flow Direction Option (Left Type or Right Type)
Body Aluminium Die Casting
Weight 1,8 kg.

FN G4-AB Technical Features

Type FN G4-AB
Gas Types Natural Gas- Air Gas
Q Min 0,04m3 / h
Q Max 6,0m3 / h
Measuring Interval 0,04m3/h - 6,0m3/h
Max. Operating Pressure 0,5 bar
Leakage Test Pressure Value 750 mbar
Measuring Volume 1,7 dm3
Qmin £ Q < 0.1 Qmax 3%
0.1 Qmax £ Q £ Qmax 1,5%
Operating Temperature -25 Co, +60 Co
Storing Temperature -30 Co, +70 Co
Maximum Totalizer Capacity 99999,999m3
Union Pipe & Nut 3/4’’
Flow Direction Option (Left Type or Right Type)
Body Aluminium Die Casting
Weight 3,3 kg.

26/18
 NATURAL GAS METERS
General Features Assembly
• Outer body is made of special aluminum material with • Meter is assembling with console in stairwells which is inside
injection method and painted with ovened electrostatic powder of the building or if it is outside of the building then it can be
paint. assembled in the place which ventilation is provided and
• Gas input and outgoing fitting axes can produce lightened inside of sheet panel.
130 / 100 mm and fitting external measurement can produce • The home type meter indicator (numarator) should be
G.-3/4”. minimum 1,80m or maximum 2.0 m height.
• Meter structure does not allowed reverse connection or • The meter should be assembled with connection console
manipulation by manual intervention in consider of horizontal position and through to the flow.
• Minimum pieces of engineering plastics are used on • The out-of-building applications (external) of the meter should
gas meter internal body. exactly made with suitable panels.
• The gas meter has a special magnetic transfer system • The size of the counter panel should enable easy mounting,
(stainless magnetic coupling) repair and dismantling for maintenance.
• There is approved and durable circular diaphragm which • Everytime, there should be control valve input of the meter.
is suitable with standards in internal mechanism. • The meter input connection should made with stainless
• There is an long 360° rotary type operating mechanism material (PVC covered or without cover)and assembled with
used in inner mechanism for sensitive measuring. flexible hose.
• Easy reading of the meter have been provided with big • Meter outgoing connection should connect with fitting to
counter discs which are above-standards. input installation of the house.
• Meter materials are selected among high resistant materials • Gasket which is suitable to natural gas should be use in
in terms of unfavorable conditions. fittings on the connection of the meter and installation.
• Special fitting locking console sheet that is resistant to turning
moments is delivered as standard piece together with the Maintenance
meter for assembly and commissioning. • The device owner can clean any pollution with wet pack on
• In virtue of its executed design and materials used it has a the meter. Excluding washing is not advise.
lower pressure loss than indicated in TS 5910 EN 1359 • As meters are mesuring devices, maintenance, repair and
Standards. providing spare sparts are only carried out by the manufacturing
• Measuring failure percentage at 0,1 Qmax - Qmax interval company based on the test results executed.
is lower than ±1,5 • Due to its structure the device does not require any
• The meter is suitable for natural gas, air gas and LPG gas. maintenance. Meter life will be extended in case of Using
manufacturer-approved filters input and outgoing of the natural
Optionally(*); gas meter.
• The color of gas meter can be changed upon request
• Pulser type counter body cover can be produced upon
request (1imp 0,01m3).

Note: According to quantity of requested meter changes can

be made on meter connection fitting spindles and fitting
external dimensions.

Error Curve
% Error Pressure loss curve
3 mbar Presure loss
2,20
2,5
2,00
2
1,80
1,5
1,60
1
1,40
0,5
1,20
0
1,00
-0,5
0,80
-1
0,60
-1,5
0,40
-2
0,20
-2,5
-3
Q min 3 Q min 0,1 Q max 0,2 Q max 0,4 Q max 0,7 Q max Q max
Flow m3/hour

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07/07
 NATURAL GAS METERS
Points to be considered • Federal is not responsible for any damages arising from
• The counter should be protected by an appropriate protective impacts or falling during carrying after delivery and for any
panel from weather conditions, damages that may arise from deformations that may arise as a result of not deactivating
accidents or from actions that could harm its operation the device during the leakage test of the installation.
(impacts, vibrations, corrosion, very low or high temperatures, • The assembly of the device should be carried out when
humidity, etc). spatters and similar particles are removed and cleaned from
• Electric switches, counters, junction boxes, instruments and the inside of the pipe
devices that operate with electricity such as bells should not • It is recommended to place filters in counter's inlets and
be placed close to the device. In obligatory circumstances outlets in order to avoid the entrance of installation spatters
this distance should be minimum 1.5 meters. and dust that may originate on lines. (A material available in
• It should not be forgotten that a direct or indirect interference Federal Electric DGS Accessories. Delivered upon demand).
by unauthorized people during using phase will lead to penalty
provisions.

a e

Dimensions (mm)
Type Connection
Size e
h

FN G1.6-AB 3/4 226 ±2 100 168 ±2 100 ±2 138 ±2 50 ±2

FN G2.5-AB 3/4 226 ±2 100 168 ±2 100 ±2 138 ±2 50 ±2

FN G4-AB - 3/4 226 ±2 130/100 168 ±2 100 ±2 138 ±2 50 ±2

b c

Pressure Conversion Table

1 bar = 1000 mbar = 100 kpascal = 100.000 pascal

0,5 bar = 500 mbar = 50 kpascal = 50.000 pascal

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