MFM391/MFM391-CE ORDER CODE INFORMATION CAUTION : MECHANICAL INSTALLATION

selec Operating Instructions

Product Supply Voltage
Certification 1. Read complete instructions prior to installation and
operation of the unit.
For installing the meter
1. Prepare the panel cutout with proper dimensions as
OP868-V01

LISTED
2. Risk of electric shock. shown below.
3. The equipment in its installed state must not come in 2. Push the meter into the panel cutout. Secure the meter
MFM391 85V - 270V AC,50/60Hz R R

close proximity to any heating sources, oils, steam, in its place by fitting the clamp on the rear side. fit
MFM391-CE 85V - 270V AC,50/60Hz R
caustic vapors or other unwanted process by products. clamps on both sides in diagonally opposite location for
optimum fitting.
WIRING GUIDELINES 3. For proper sealing, tighten the screws evenly with
ACCURACY required torque. Terminal screw tightening torque :
WARNING : 0.5N. m 4.4Lb.in
Measurement Accuracy
1. To prevent the risk of electric shock, power supply to the
Voltage VL-N ±0.5% of F.S. ±2 digit equipment must be kept OFF while doing the wiring Outline Panel cutout
arrangement. Dimensions (in mm) Dimensions (in mm)
Voltage VL-L ±0.5% of F.S. ±2 digit 2. Wiring shall be done strictly according to the terminal
96 x 96 layout. Confirm that all connections are correct.
Current ±0.5% of F.S. ±2 digit 3. Use lugged terminals.

90.5

91.5
99 Front bezel Side view Panel Cutout
SPECIFICATIONS Frequency ±0.1Hz ±1digit
4. To reduce electromagnetic interference use of wires with
adequate ratings and twists of the same in equal size shall
DISPLAY Run Hour ±1% be made with shortest connections.
99 50 91.5
3 Row of 3 Digits 5. Layout of connecting cables shall be away from any 3
7 Segment LED Display Size 36.5 x 48 mm RPM ±0.5% internal EMI source.
Integrated with parameter Units 6. Cable used for connection to power source, must have a MAINTENANCE
Active Power 1%
WIRING INPUT cross section of 0.5mm2 to 2.5mm2 ( 20 to 14AWG ; 750C(min)). 1. The equipment should be cleaned regularly to avoid
3 Ø - 4 wire, 3 Ø - 3 wire Apparent power 1% Thesewires shall have current carryingcapacityof 6A. blockage of ventilating parts.
RATED INPUT VOLTAGE 7. Copper cable should be used (Stranded or Single core cable). 2. Clean the equipment with a clean dry or damp cloth.
11 to 300V AC (L-N) ; 19 to 519V AC (L-L) Reactive Power 1% 8. Before attempting work on device, ensure absence of Do not use any cleaning agent other than water.
FREQUENCY RANGE voltages using appropriate voltage detection device.
Power Factor ±0.01
50/60 Hz INSTALLATION GUIDELINES TERMINAL CONNECTIONS
RATED INPUT CURRENT
Description
N
Nominal 5A (Min-20mA, Max-6A) Parameters Unit CAUTION :
L

CT PRIMARY Voltage All phase to phase, phase 1. This equipment, being built-in-type, normally becomes a
1A / 5A to 10,000A (Programmable for any value) V, kV part of main control panel and in such case the terminals
(True RMS) to neutral and average
Note : 1A to 10,000A if CT secondary is 1 else do not remain accessible to the end user after installation

MFM391-CE
Current

MFM391/
5A to 10,000A All phases and average A, kA and internal wiring.
(True RMS) 2. Conductors must not come in contact with the internal CONNECTION DIAGRAM
CT SECONDARY
1A or 5A (programmable) Frequency Frequency of present phase Hz circuitry of the equipment or else it may lead to a safety
L1 L
PT PRIMARY hazard that may in turn endanger life or cause electrical L2 O
100V to 500kV (Programmable for any value) Power Factor All phases and average PF shock to the operator. L3 A
3. Circuit breaker or mains switch must be installed N D
PT SECONDARY
Active Power All phases and Total k,M between power source and supply terminals to facilitate
100 to 500V (Programmable for any value) S1 S2 S1 S2 S1 S2 N V1 V2 V3
power 'ON' or ‘OFF’ function. However this switch or I1 I2 I3
DISPLAY UPDATE TIME Reactive breaker must be installed in a convenient position
All phases and Total k,M
1 sec. for all parameters Power normally accessible to the operator.
DISPLAY SCROLLING Apparent All phases and Total k,M 4. Before disconnecting the secondary of the external FRONT PANEL DESCRIPTION
Auto / Manual Power current transformer from the equipment, make sure that
POWER CONSUMPTION Run Hour The time for which meter is on the current transformer is short circuited to avoid risk of
Less than 8VA
RPM calculated from
electrical shock and injury. selec MFM376
ENVIRONMENTAL CONDITIONS RPM 5. The equipment shall not be installed in environmental
- Indoor use system frequency conditions other than those mentioned in this manual.
- Altitude of up to 2000 meters 6. The equipment does not have a built-in-type fuse.
PG

SAFETY PRECAUTIONS Installation of external fuse of rating 275V AC / 0.5Amp for

- Pollution degree II PRG
electrical circuitry / battery is highly recommended.
- Installation Category III A/M
All safety related codifications, symbols and instructions Config Range or Factory
Temperature : Operating : -10°C to 55°C Function
that appear in this operating manual or on t h e e q u i p m e n t page. Selection Setting
Storage : -20°C to 75°C
must be strictly followed to ensure the safety of the operating
Humidity : Up to 85% non-condensing Network MFM391
personnel as well as the instrument. 1 3P4W / 3P3W 3P4W
RPM : Pole : 0 (Range : 0-98, Selectable in Selection
If the equipment is not used in a manner specified by the
step 2),Frequency : 45-65Hz 2 CT Secondary 1A or 5A 5
manufacturer it might impair the protection provided by the
Run Hour : 0-99999.9 hr equipment. 5A to 10,000A if CT ONLINE PAGE DESCRIPTION
BURDEN : 0.5VA@5A per phase 3 CT Primary
Secondary is 5A
005
Do not use the equipment if there is any mechanical 1A to 10,000A if CT There are two dedicated keys labelled as and .
MOUNTING : Panel mounting Secondary is 1A
damage. Use these 2 keys to read parameters. Simply press
WEIGHT Ensure that the equipment is supplied with correct 4 PT primary 100V to 500kV 350 these keys to read the parameters. Units of corresponding
MFM391 : 190gms voltage. parameters on display will glow automatically.
MFM391-CE : 193gms 5 PT Secondary 100V to 500V 350 1) Key 1 ( /PG) : To Increment Main Page.
6 No. of poles 0 to 98 (Selectable in step 2) 02 2) Key 2 ( /A/M ) : To Increment subpages of respective
Main Page
7 Reset Run Hour Yes/No No

Doc. name : OP INST MFM391/MFM391-CE-RoHS OP868-V01(Page 1 of 2)

 For 3P4W For 3P3W TYPICAL WIRING DIAGRAM #All fuse types : 0.5A class CC UL type ; 0.5A fast acting 600V
KEY KEY 3 Phase - 4 Wire 2 Phase - 3 Wire
ONLINE PAGE DESCRIPTION ONLINE PAGE DESCRIPTION
PRESS PRESS
Displays first phase line 3 Ø - 4 wire, 3 CT’s and 3 PT’s 2 Ø - 3 wire, 2 CT’s 2 PT’s
Press 1st Displays three phase line Press 2nd
to line voltage , current and Network Selection : 3P4W + Network Selection : 3P4W
“ ” screen to neutral voltage. “ ” screen +
three phase average power factor.
# #
3rd Displays second phase line
Press 2nd Displays three phase line Press
screen to line voltage , current and
“ ” screen to line voltage. “ ” L
N
L
N
three phase average power factor.
4th Displays third phase line
Press 1st Displays three phase line Press
screen to line voltage , current and MFM391/MFM391-CE-RoHS
“ ” screen to neutral current. “ ” MFM391/MFM391-CE-RoHS
three phase average power factor.

1st Displays three phase total active I1 I2 I3

Press 2nd Press power, reactive power, apparent
Displays RPM. screen I1 I2 I3 S1 S2 S1 S2 S1 S2 N V1 V2 V3
“ ” screen “ ” power. S1 S2 S1 S2 S1 S2 N V1 V2 V3

Press 3rd
Displays Run Hour. SERIAL NUMBER DESCRIPTION #
“ ” screen #
Press key for 10 sec to display serial number..
Displays three phase average line
Press 1st AUTOMATIC / MANUAL / DEFAULT MODE
to neutral voltage, current and
“ ” screen
power factor. Press key for 5 sec to toggle between AUTOMATIC /
Displays three phase average line MANUAL .
Press 2nd to line voltage, current and N
N
“ ” screen frequency. CONFIGURATION L3

Displays first phase line L2 L2

Press 3rd For the configuration setting mode :
to neutral voltage , current and • Use + key for 3 sec to enter and exit from L1 L1
“ ” screen power factor. LINE LOAD LINE LOAD
configuration menu.
Displays second phase line • Use key to increment the configuration pages .
Press 4th to neutral voltage , current and • Use key to edit the value and shift the cursor for next
3 Phase - 3 Wire 1 Phase - 2 Wire
“ ” screen power factor. digit to edit. 3 Ø - 3 wire, 2 CT’s and 2 PT’s 1 Ø - 2 wire, 1 CT
Displays third phase line • Use key for 2 sec save the parameter value . Network Selection : 3P3W Network Selection : 3P4W
Press 5th
to neutral voltage , current and • Press key for next page. + +
“ ” screen
power factor. Press first Key for 2 second to set CT/PT primary values in # #
Displays three phase total active Kilo from normal and vice versa.
Press 1st
power, reactive power and Eg:- If user want to set 1300 = first
“ ” screen L
N
L
N
apparent power. set digit 001 then hold key for 2 sec to shift in k, then
Displays first phase active power, display will show 1.00k ,press shift the cursor for next digit.
Press 2nd next press key to change values after the decimal point
reactive power and apparent
“ ” screen MFM391/MFM391-CE-RoHS MFM391/MFM391-CE-RoHS
power. 1.3k and than hold key for 2 sec to save the parameters ,
Displays second phase it will show 1.30k.
Press 3rd active power, reactive power and I1 I2 I3
TYPICAL WIRING DIAGRAM
I1 I2 I3
“ ” screen apparent power. S1 S2 S1 S2 S1 S2 N V1 V2 V3 S1 S2 S1 S2 S1 S2 N V1 V2 V3

Displays third phase active power, 3 Phase - 4 Wire (Commonly Used)

Press 4th reactive power and apparent
“ ” screen 3 Ø - 4 wire, 3 CT’s # #
power. +
Network Selection : 3P4W
#
For 3P3W
N
KEY
L
N
ONLINE PAGE DESCRIPTION
PRESS L3

Press 1st Display three phase line to line MFM391/MFM391-CE-RoHS L2

“ ” screen voltage. L1 L1
LINE LOAD LINE LOAD
I1 I2 I3
Press 1st Displays three phase S1 S2 S1 S2 S1 S2 N V1 V2 V3

“ ” screen line to line current. Note : + and - is applicable only for DC Product. (Specifications subject to change as development is a continuous process.)

Press 2nd # Selec Controls Pvt. Ltd., India

Displays RPM.
“ ” screen Factory Address :
EL-27/1, Electronic Zone, TTC Industrial Area,
Press 3rd Displays Run Hour. MIDC, Mahape, Navi Mumbai - 400 710, INDIA.
“ ” screen N
L3
Tel. No. : +91-22-41418468 / 52
Displays three phase average Fax No. : +91-22-28471733 I Toll free : 1800 227 353
Press 1st line to line voltage, current and L2
Website: www.selec.com I Email: sales@selec.com
“ ” screen frequency. L1
LINE LOAD

Doc. name : OP INST MFM391/MFM391-CE-RoHS OP868-V01(Page 1 of 2)