Clean Water Systems Precision-24 User manual

Precision-24 Manual & Specification

1 Product Introduction ...................................................................... - 1 -
1.1 Product Overview .............................................................. - 1 -
1.2 Technical Parameter ........................................................... - 2 -
1.2.1 General Parameter .................................................. - 2 -
1.2.2 Performance Parameter .......................................... - 3 -
1.2.3 Installation Dimension ........................................... - 3 -
1.3 Operation Instruction ......................................................... - 4 -
2 Installation ...................................................................................... - 5 -
2.1 Installation .......................................................................... - 6 -
2.2 Tube connection ................................................................. - 7 -
2.3 Power connection ............................................................... - 7 -
3 Operation and Setting ..................................................................... - 8 -
3.1 Start-up ............................................................................... - 8 -
3.2 Setting ................................................................................ - 8 -
3.3 Signal Function Setting for JLM-A & JLM-P .................... - 9 -
4 Maintenance and Repair ............................................................... - 10 -
4.1 Maintenance ..................................................................... - 10 -
4.2 Diaphragm Replacement .................................................. - 11 -
5 Troubleshooting ........................................................................... - 13 -
6 Main parts .................................................................................... - 15 -

-1-
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Precision 24 JLM electronic metering pump is an electromagnetic
diaphragm pump under the control of microprocessor. The flow is
controlled by adjusting the length of the stroke or the pulse frequency. It
is used for transmitting liquid, including mordant liquid.
The diaphragm reciprocates in the pump head with the force of the
electromagnetic, causing the change of the volume and pressure, which
make the check valves open and close automatically. Thus the liquid is
sucked and discharged.
The rated output volume of this electronic diaphragm metering pump
is 1-15 l/h, and its corresponding maximum discharging pressure is
10bar. The flow could be controlled by adjusting the length of the stroke
or the pulse frequency. The stroke length adjustment extent is
20%-100%.The LED displays the state of the pulse frequency in
percentage.

- 2 -
1.2
1.2
1.2
1.2 Technical
Technical
Technical
Technical Parameter
Parameter
Parameter
Parameter
1.2.1
1.2.1
1.2.1
1.2.1 General
General
General
General Parameter
Parameter
Parameter
Parameter
Metering Precision ：±
±
±
± 2%
2%
2%
2% in
in
in
in stable
stable
stable
stable condition
condition
condition
condition and
and
and
and the
the
the
the stroke
stroke
stroke
stroke length
length
length
length >
>
>
>
30%
30%
30%
30% .
.
.
.
Allowable Ambient Temperature ：－10
10
10
10 ℃~
~
~
~＋45
45
45
45 ℃
Power ：AC
AC
AC
AC 220V
220V
220V
220V or
or
or
or AC110V
AC110V
AC110V
AC110V ±
±
±
± 10%
10%
10%
10%
Frequency ：50Hz
50Hz
50Hz
50Hz ~
~
~
~ 60Hz
60Hz
60Hz
60Hz
Input Power ：
Insulation Degree ：F
F
F
F
Outer Connection Control ：Stroke Signal
Pulse Width ：20ms
20ms
20ms
20ms
Connection Load ：5V
5V
5V
5V ，0.5mA
0.5mA
0.5mA
0.5mA
Stroke Frequency Rated Output
120
120
120
120 stroke/min
180
180
180
180 stroke/min
20W
20W
20W
20W
28W
28W
28W
28W

-3-
1.2.2
1.2.2
1.2.2
1.2.2Performance
Perf ormance
Performance
PerformanceParameter
Pa rameter
Parameter
Parameter
Flo
Flo
Flo
Flo
w
w
w
w
L/H
L/H
L/H
L/H
Pressu
Pressu
Pressu
Pressu
re
re
r e
re
Bar
Bar
Bar
Bar
Stroke
Stroke
Stroke
Stroke
Control
Control
Control
Control
%
%
%
%
Pulse
Pulse
Pulse
Pulse
frequency
frequency
frequency
frequency
Stroke/min
Stroke/min
Stroke/min
Stroke/min
Calib
Calib
Calib
Calib
er
er
e r
er
mm
mm
mm
mm
3.8 7.6 20-100 0~180 5
1.2.3
1.2.3
1.2.3
1.2.3Installation
Ins tallation
Installation
InstallationDimension
Dim ension
Dimension
Dimension

- 4 -
1.3
1.3
1.3
1.3 Operation
Operation
Operation
Operation Ins
Ins
Ins
Ins
1.4
1.4
1.4
1.4 truction
truction
truction
truction
�While the first digital shows “ P ” , it is power on ;
�While the first digital is off, it is power off
�The last three digital s show the state of the frequency.
�While the last three digital s are off, the pump stops working.
�Mark 2 on the picture is the stroke knob for adjusting the stroke
length . T he best adjusting range is 30% ~ 100% 。
Mark 3 and mark 4 on the picture are buttons for adjusting the
frequency ( in percentage) .
1.Displaying the frequency
2. Stroke a djusting knob
3.Increasing the frequency
4.Reducing the frequency
5. Stop/Sart
6.power cable

- 5 -
Long press the button, the frequency will increase or reduce 10% per
time;
Quick press the button, the frequency increase or reduce 1% per time.
2
2
2
2Installation
Installation
Installation
Installation
�If the pumped solution can not be mixed with water, the pump
should be cleaned before use, as some water might be remained when
the pump was tested at factory. Turn over the pump head and get rid of
water, then use suitable medium to clean the wetted part of the pump
head.
�
The installation place should be convenient for workers to operate
and maintain. Any obstruction should be moved away from working
area.
�If stop valve is equipped at the outlet of the metering pump. When
the stop valve is closed, the counter pressure may be several times than
the maximum pressure allowed, which may rupture the pipe or cause the
pump being damaged . To avoid such accidents, a relief valve is
suggested to be installed.
�Use the right tubing sleeve , right end cap and tube to ensure the
connector being stable and endurable.

- 6 -
2.1
2.1
2.1
2.1 Installation
Installation
Installation
Installation
�Tighten the screws to fix the pump.
�The inlet and outlet must be installed vertically.
�
The inlet tubes should not be too long, and make the foot valve
10-30mm above the bottom of the tank ( it can be 50mm if the liquid is
with heavier dirt)
�Install the outlet tubes and injection valve. Back pressure valve
should also be installed if it is open discharging.

- 7 -
2.2
2.2
2.2
2.2 Tube
Tube
Tube
Tube connection
connection
connection
connection
2.3
2.3
2.3
2.3 Power
Power
Power
Power connection
connection
connection
connection
�
Make sure the voltage is consistent with the grade marked on the
nameplate .
�
Insert the plug to the right socket.
�P ut the coupling nut on the
hose.
�
C ut the hose at suitable length,
and insert on the end cap as deep
as possible.
�
E nlarge the diameter of the
hose a little if needed.
�Press the tubing sleeve and
tighten the coupling nut

- 8 -
3
3
3
3 Operation
Operation
Operation
Operation and
and
and
and Setting
Setting
Setting
Setting
3.1
3.1
3.1
3.1 Start-up
Start-up
Start-up
Start-up
�
l Open all the control valves on the input and output tubes. Open
the bypass valves for discharging air, if the pump is with injection valve
or pressure regulating valve. Or loose the coupling nut to discharge the
air.
�
l Start the pump, to check whether the liquid is out from the outlet
tube or the bypass valve.
�l Close the bypass valve when the pump works normally.
3.2
3.2
3.2
3.2 Setting
Setting
Setting
Setting
�Adjust strok knob ②to adjust the stoke length .
�Adjust the frequency button ③④ to control stoke frequency ( in
percentage).
It is suggested adjust the flow by the frequency. The stroke length
is for slight adjustment after frequency setting.

- 9 -
3.3
3.3
3.3
3.3 Signal
Signal
Signal
Signal Function
Function
Function
Function Setting
Setting
Setting
Setting for
for
for
for JLM-A
JLM-A
JLM-A
JLM-A &
&
&
&
JLM-P
JLM-P
JLM-P
JLM-P
�
When the pump is stop( display P on the panel), press “ stop/start ”
key will start the pump. Long press this key will go to parameter setting.
When the pump is on, press “ stop/start ” key will stop the pump.
�Parameter setting:
Long press “ stop/start ” key to run into the parameter setting
as following:
0:
0:
0:
0: Set the max stroke value per minute;
1:
1:
1:
1: Minimum pulses per minute( can not be changed);
2:
2:
2:
2: No function; Please ignore it;
3:
3:
3:
3: No function; Please ignore it;
4:
4:
4:
4: No function; Please ignore it;
5:
5:
5:
5: “ 0 “ for manual operation; “ 1 ” for pulse function
(Multiplier); “ 2 ” for pulse function( Divider); “ 3 ” for
remote control; “ 4 ” for 4-20mA function; “ 5 ” no fucntion;
6:
6:
6:
6: Pulse fucntion rate setting( scope from 1-255): Setting
the valve at N, If it is under pulse multiplier function, the
pump will run N strokes by receiving 1pulse; If it is
under pulse divider function, the pump will run 1 stroke
by receiving N pulses;
7:
7:
7:
7: No function; Please ignore it;
8:
8:
8:
8: Show 4-20mA input value.
�Wire connection:
1 for common line ( black)

- 10 -
2 for 4-20mA signal input(white)
3 for pulse signal input( green)
4 for remote control (red)
4
4
4
4 Maintenance
Maintenance
Maintenance
Maintenance and
and
and
and Repair
Repair
Repair
Repair
Warning
Warning
Warning
Warning
�Electric maintenance must be carried out by qualified electrician .
�
Before maintenance, please unplug the power socket or cut off the
power . If there is relay, it should be cut off. Make sure there is no power
during maintenance .
�
During maintenance, please release the pressure in the tubes first,
and clean the pump head. Don ’ t use corrosive liquids .
�If medium is dangerous liquid, please check the performance
parameters of the medium . Discharge and wash the pump head before
maintenance .
4.1
4.1
4.1
4.1 Maintenance
Maintenance
Maintenance
Maintenance
Strictly check the following items when maintenance.
�
Pump head bolts (make sure it is firmly connected)
�I nlet and outlet tubes (make sure it is firm ly connected)
�
Pump head and valves( make sure it is firm ly connected )

- 11 -
�Leakage hole on the adapter base ( the diaphragm may be broken if
there is leakage liquid.)
4.2
4.2
4.2
4.2 Diaphragm
Diaphragm
Diaphragm
Diaphragm Replacement
Replacement
Replacement
Replacement
�A djust stroke length to 0% when the pump is working;
�
Cut off the power, loosen the bolts ①;
;
;
;
�Pull out the pump head ②and bolts ①from pump body;
�
Counter clockwise turning the diaphragm ③and turn it off;
�
Take off the adapter base ④
�
�
�
�Screw on a new diaphragm ③at clockwise as tight as possible;

- 12 -
�P ut back the adapter base ④with the drain hole oriented
downward.
�Remount the pump head back. Take care of the direction of inlet
and outlet check valves.
Warnings
Leakage hole on the adapter base must be downward.
Recheck the screws on th pump head, tighten them if necessary.

- 13 -
5
5
5
5 Troubleshooting
Troubleshooting
Troubleshooting
Troubleshooting
Problem Possible Cause Solution
Pump can
not start
power failure C heck the power supply
The fuse bl o wout s Change fuse
C ircuit is interrupted. Find the off position
W rong connecting wire Recheck the diagram
Pipe blockage Open the valve, and clean it
No Flow
N ot work C heck the power
Offering tank is empty Fill the tank
Pipe blockage Clean the pipe
Valve is closed Open the valve
Granule block off check
valve
Check the valve and clean it
Air in the pipe R elease the air
Cavitations
Increase the pressure of suction and
shorten the suction pipe.
Problem of priming Re-priming, checking leakage
Filter is blocked
Disassembl e the filter; clean or
change it.
Adjust the stroke to
zero.
Increase stroke length.
Low flow
Valve broken or serious
dirty.
C lean the valve or clean it.

- 14 -
Calibration system is
wrong
Evaluate and correct it
Medium viscosity is too
high
Improve temperature of product or
lower the viscosity. Increase the
size of pump and pipeline.
Medium cavitations
Increase the pressure of suction,
and shorten the suction pipe.
Flow
becomes
lower
gradually
Check valve leakage
Clean or change the valve
Suction pipe leakage
Find the leakage position and
solute the problem.
Filter is blocked
Disassemble the filter; clean or
change it.
Medium is changed
Check the viscosity and other
parameters
Blowhole of the offering
tank is blocked
Open the blowhole
Flow is
unstable
Suction piping leakage
Find the leakage position and
solute the problem.
Medium cavitations
Increase the pressure of suction and
shorten the suction pipe.
Check valve is blocked
Clean or change it

- 15 -
6
6
6
6 Main
Main
Main
Main parts
parts
parts
parts