CHLORINE METER
CL 650
(OPERATING MANUAL)
1
TECHNICAL SPECIFICATIONS:
METER
1. Physical dimensions 105 X 105 X 120 mm
Panel cut out 92 mm X 92mm
2. Enclosure ABS Weather proof/IP 65
3. Mounting Field/Panel
4. Parameter sampling rate < 2 seconds
5. Resolution 0.01
6. Accuracy ± 2% of FSD
7. Power supply 230V A.C./110V A.C./24V D.C.
8. Alarms Separate LED indication for High &
Low Chlorine value
8. Alarms/Control relays Individual high & low relay
(programmable through entire range
with settable control delay & hysteresis)
9. Display 4 Digit 7 SEGMENT LED
10. Calibration/Set point Using front panel keypad.
4-20 mA D.C.Current
11. Output (Optional)
RS-485
12. Range 00.00 PPM to 04.00 PPM
SENSOR
1. Overall dimension 140 mm(L) X 32 mm(W)
2.Type Flow through/Tank(Optional)
3.Sensor O/P Milli Volt
4.Electrode material Glass bulb with epoxy body
5.Process connection 20/15 NB BSP M
6.Integral cable 1 core shielded
7.Application Water
8.Temperature 0-60°C
9.Max. Pressure 5 kg/cm2 2
GETTING ACQUAINTED WITH THE METER:
This meter is user friendly & easy to understand. Its operation will be
clear when we go through all the parts of the meter.
1. SENSOR : It is the main part of the Chlorine Meter. It has two
electrodes : One reference and one measuring electrode enclosed
in glass tubing. This is dipped into the line of which Chlorine is to be
measured, it senses the Chlorine and sends a signal to the meter.
2. METER : This is the unit that processes the information received
from the sensor and displays Actual Chlorine in the line. This unit
also controls the Chlorine by transmitting signals to dosing pumps,
hooters, valves etc through inbuilt relays.
WIRING CONNECTIONS:
MAIN S HIGH RELAY LOW RELAY
P N NO C NC NO C NC
Output N.A. Sensor
1 2 X X X X Glass Ref
Description Terminal details 1 2
With relay output only Not appl. X X
4-20 mA current O/P with relays Current O/P + -
RS-485 O/P with relays RS 485 O/P(Tx) + -
3
INSTALLATION GUIDELINES:
SENSOR:
The Chlorine sensor is normally supplied with 20NB installation
fitting with female threading.
The sensor should be mounted vertically in the line.
The sensor shall be connected in the sampling line only as the
sensor body is meant for the pressurized line upto 5kg/cm2.
The fitting can be connected to the sampling point by flexible tubing.
Chlorine
SENSOR
OUTPUT
OPEN TO
ATMOSPHERE
MOUNTING POSITION
INPUT FROM
PRESSURIZED
LINE UPTO 5 Kg/cm2
METER:
The meter is designed to suit field,panel as well as sensor mounting
as shown below.
MOUNTING POSSIBILITIES
PANEL MOUNT APPLICATION SENSOR MOUNT APPLICATION
Press this downwards
& Push forward to lock
Press this downwards
& Pull out to unlock.
4
METER OPERATION:
In regular operation, the Chlorine Meter displays the actual Chlorine in
the Line. Pressing the view key display will scroll through all the settings in
the Chlorine meter.
PROGRAMMING THE SET POINT:
For programming the set point go as per following table
KEY TO BE PRESSED DISPLAY
MENU St Hi (Set High)
MENU Previously set high Chlorine value
Use ACK. & VIEW key to set high Chlorine value
MENU HYS1 (Hysteresis* 1)
MENU Previously set Hysteresis value
MENU St Lo ( Set Low)
MENU Previously set low Chlorine value
Use ACK. & VIEW key to set Low Chlorine value
MENU HYS2 (Hysteresis* 2)
MENU Previously set Hysteresis value
MENU TEmP(Temperature)
MENU Previously set temp. value
Use ack. & view key to set temp value
MENU END
Hysteresis (hys1):
The %age value for which the relay will not reset after getting energised.
For eg. If the high Chlorine value is set at 03.00 and the hysteresis is kept at
10% then the high relay will get energised the moment Chlorine exceeds
(after the set control delay) and will remain energized until
the Chlorine value falls to 02.70.And similar is the case with
hyst2 i.e. for lowChlorine.Eg. If low set point is 02.00 with 10%
hysterysis, the relay gets reset only when the Chlorine goes
over 02.20. (Normally, both hysteresis values are kept at
10%).
Low set point should be lower than the high set point else meter will
show Serr. 5
ON SITE CALIBRATION OF METER:
The Chlorine Meter supplied comes duly calibrated by experienced
professionals from our factory. Incase the need arises for onsite calibration
please follow the below procedure:
Before starting the calibration procedure ensure availability of
standard ppm solutions.Dip sensor in standard ppm solution & follow below guidline.
KEY TO BE PRESSED DISPLAY
VIEW & ACK PASS then 0000
ENTER THE PASSWORD 0123 USING VIEW & ACK. KEY
MENU Calb
MENU ConS
MENU Previously set value.
Use VIEW & ACK.key to set the constant to match the readings.
MENU End
MENU Actual reading
OPERATION MODES
The meter can be operated in three modes (based on relay operation):
1. CONTROL MODE: In this mode, the relay gets energized and will be
time proportionately energized between the set value and the
hysteresis.e.g.If the high value is kept at 180 with 10% hysteresis ,
between the Chlorine values of 180 & 198 high relay would operate
in an ON/OFF cycle(total cycle time 10 seconds).
The ON time increases as the Chlorine value approaches 198
beyond which relay remains energized. The same operation will
be for Low Chlorine value.
2. ALARM MODE: In this there are two options:
i) AcK (Acknowledge) : In this mode, the relay will get energized and
reset once Ack. key is pressed.
ii) nAcK (No Acknowledge) : In this mode relay will be energized as long
as pH value is across the set point. One can’t reset the relay with
Ack. Key
3. AUTO RESET MODE: In this mode, the relay gets automatically
reset after 2 seconds.
KEY TO BE PRESSED DISPLAY
VIEW & ACK.Simultaneously PASS
ENTER PASSWORD 0234 USING ACK. & VIEW KEY
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MENU Cdly ( control delay)*
What is this ?
This is the delay for which processor will ignore increase/decrease in pH
value & will energise relay after this much time (in seconds).
MENU 0010
Use ACK. & VIEW key to change this time
MENU rlop
Use ack. key to make it AUtr(Auto reset) or CntL(Control)
MENU Ack
Use ACK. key to make it nAck
MENU END
MENU Actual reading
IN CASE OF 4-20mA OUTPUT:
In case of field transmitter, the meter takes the sensor input & gives
4-20mA output current. The factory settings for ZERO(value of Chlorine at
which transmitter would give 4 mA current) & SPAN (value of Chlorine at
which transmitter would give 20 mA current) are:
Reading(mV) Current Output(mA)
00.00 4mA
04.00 20mA
To change the Zero & Span settings follow the guideline below:
KEY TO BE PRESSED DISPLAY
VIEW & ACK PASS
ENTER THE PASSWORD 0678 USING VIEW & ACK. KEY
MENU Type
MENU Norm
MENU Zero
MENU Previously set ZERO value
Use VIEW & ACK.key to change the value
MENU SPAN
MENU Previously set SPAN value
Use VIEW & ACK.key to change the value
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MENU END
Instrument also works as 4_20 mA current simulator.It gives 4 mA & 20 mA
current for the calibration of other instruments.Follow the below guideline:
KEY TO BE PRESSED DISPLAY
VIEW & ACK PASS
ENTER THE PASSWORD 0420 USING VIEW & ACK. KEY
MENU 4 mA
Instrument will give 4 mA current
MENU 20 mA
Instrument will give 20 mA current
MENU End
MENU Actual reading
IN CASE OF RS-485 OUTPUT:
In case of pH meter with RS-485 output,if number of instruments are
connected through same wire then each instrument should have it’s
specific address(called as meter address).To set the meter address
follow the below guideline.
KEY TO BE PRESSED DISPLAY
VIEW & ACK PASS
ENTER THE PASSWORD 0345 USING VIEW & ACK. KEY
Addr
MENU Previously set meter address
Use VIEW & ACK.key to change the address.
MENU Actual value
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Connection diagram for number of meters(with Rs485 O/P) to Computer:
+
-
+ - + - + - - +
RS 485 O/P RS 485 O/P RS 485 O/P
RS 485
to
RS 232
METER 1 METER 2 METER N Converter
To Serial port
Needed only if Computer Serial to
doesn’t have serial port USB Adapter
To USB port
TYPICAL WIRING DIAGRAM OF A DOSING PUMP THROUGH RELAY :
MAINS HIGH RELAY LOW RELAY
P N NO C NC NO C NC
230 V
A.C.
SUPPLY
~ TO ACID
DOSING
TO ALKALI
DOSING
PUMP PUMP
Not Appl. Sensor
X X X X X X Glass Ref.
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TROUBLESHOOTING:
TROUBLE PROBABLE CAUSE ACTION
DURING COMMISSIONING
Fluctuating Sensor not dipped in the line Loop the outlet tubing such
readings properly that the tee always remains
flooded with water
Connect the wires as per
Wrong wiring
drawing
Sensor not sensing Disconnect the sensor, by
removing the wires then by
shorting the input terminals,
check the reading, the
reading is around 0000,
then change the sensor.
DURING CALIBRATION
Meter shows Calibration Disturbed Recalibrate the meter
mismatch
reading
DURING NORMAL SERVICE
Display
Shows Sensor not dipped in the line Loop the outlet tubing such
Erroneous properly that the tee always remains
reading flooded with water
Sensor output may be more Recalibrate the meter.
Meter shows
or less than the min. or max. If problem persists change
sensor error
values the sensor
Check MOV/FUSE, if it is
No display High voltage burnt then replace it with
new one
Frequent Replace MOV*
MOV short
Fuse failure as well as FUSE**
*MOV 14mm Dia. and 320V AC
** FUSE -- 630mA
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Follow the guideline below for better results.:
DOS DON’TS
Do turn Chlorine meter OFF before Do not touch the bottom part of Chlorine
disconnecting electrode. electrode with your hands,especially
the bulb or reference junction.
Do rinse the Chlorine electrode throughly Do not scratch or damage the Chlorine
with deionized water before electrode bulb.This may totally
measuring a new sample. break electrode or result in
errorneous readings
Do standardize your Chlorine sensor Do not use reference junction with
frequently for the most accurate fast flowing reference junction in
results. small samples where flow of
reference solution could contaminate
the sample.
Do mount Chlorine sensor in a sampling Do not mount the sensor in any
line vertically. housing other than the supplied one
Do not put the sensor in pressurized
line above 5kg/cm2.Ensure the output
is always kept open to atmosphere.
Do not extend the sensor cable.
Marketed By Authorised Dealer
Embark,
Sr No.32/1B/2,
Opposite Hotel Balaji,
Kondhwa,Pisoli Road,
Pisoli-411060
Tal:Haveli,Dist.:Pune.
Ph.: +91 7276003731/32
Mail : support@embarkwater.com
Website:www.embarkwater.com
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V 2.0 REV-1 1/7/19
