Water Leakage Detector
Type : WL-AD-2002-A
Instruction manual
For safety, please read this manual before
using this detector carefully.
･Do not disassemble the detector, in order to
prevent becoming an electric shock and a fire.
･Shut off the power before wiring, in order to
prevent becoming an electric shock to touch
the power terminal.
IMPORTANT NOTICE
･Please purchase PF113A type sockets, 11 pins.
･The detector is designed to use for indoor only.
･ Don’t install the detector in the place as
follows.
- Where detector is watered
- High temperature and high humidity
- Where temperature change is sharp
- Where vibration is intense
- Where an electric noise is intense
- Any hazardous location where the likelihood
of flammable or combustible or explosive
concentrations exists.
･The detector can detect a liquid that is electric
only.
･ The detector is designed in combination
with a sensor that is made by SUMITOMO
3M Ltd.
・B-3P and S-1F type sensor should be used
within 100 meter per 1 detector. On the other
hand, S-1FP type sensor is should be used
within 50 meter.
･The maximum total length of the sensor and
extension wire are 150m per 1 detector.
Explanation of Detector
Specifications
Number of detect 1 point
Power voltage AC100-110V±10V or
(50/60Hz) AC200-220V±20V
Sensitivity level 25k to 560k ohm
100k ohm (Initial-setting)
Voltage to sensor Approx. 9V
Current of Sensor shortage Less than 1mA
Output signal “C” contact (No-Voltage)
Contact rating 3A/125VAC,3A/30VDC
Power consumption Less than 2W
Operating temp range -15 to 45 Centigrade degree
Max operating moisture 90% RH (No dew drop)
Dimension 90×35×90 (mm)
Weight 180g
Suitable socket PF113A type sockets, 11 pins
Accessories Terminal kit
Wiring
Connect each wire, which are
Power, Sensor and Output
signal, to suitable terminal of
the socket as follows.
1) Power PF113A type sockets
- AC110V: No. 2 and 9 terminal
- AC220V: No. 3 and 9 terminal
2) Sensor: No. 4 and 5 terminal
3) Output signal of Sensor short & Water warning
- “a” contact: No. 10 and 11 terminal
- “b” contact: No. 10 and 1 terminal
4) Output signal of sensor breaking warning
- “a” contact: No. 6 and 7 terminal
- “b” contact: No. 6 and 8 terminal
Operation test：
Switch on the power supply after inserting the
detector in the socket certainly, and check the
following operation.
In 2 and 3 operations, check the work of an
outside alarm when the output signal is
connected to it.
1) Power lamp lights up.
2) Sensor Short warning lamp lights up, when
the electrodes or terminals of a sensor are
shorted each other over 4 sec.
3) Sensor Short warning lamp puts out within 4
sec and Sensor Open warning lamp lights up,
when the electrodes or terminals of a sensor
are opened.
Terminal resister kit：
Connect the Terminal Kit at an end of sensor
by making sticking-by-pressure with a sleeve.
Next, roll a tape around the sleeve to insulate.
NOTICE：
･If the Terminal Kit isn’t connected, Sensor
Open lamp lights up. And also, Sensor
breaking warning function doesn’t work.
･ Although Terminal kit is connected,
sensor or jumper wire is disconnected or
broken when Sensor Open lamp lights up.
Adjust sensitivity and Operation test
Detection sensitivity can be changed according
to the characteristic of a sensor, or a state of an
installation place.
After sensor is installed, Water Alarm operation
should be checked to work to drop
water, which is expected to leak,
on a sensor in order that the
sensitivity may set up correctly.
And also check the outside alarm
works or not, if it is connected to
Output signal.
NOTICE：
After the operation test, wipe the sensor and
the floor dry completely by cloth etc..
<Standard of sensitivity to set up>
1) B-3P or S-1F or PS-1R type Sensor is installed
on a floor, when detecting the liquid of high
electric conduction equivalent like tap water.
--- Set volume between 0 to 2
2) S-1F type Sensor is installed on a floor, when
detecting the liquid of low electric conduction
equivalent like pure water.
--- Set volume between 2 to 7
3) S-1FP type Sensor is installed on a pipe, when
detecting the liquid of high electric conduction
equivalent like tap water.
--- Set volume between 2 to 4
NOTICE：
･Check the detector’s operation with dropping
water, which is expected to leak, after the
detection sensitivity setup.
･ Don’t set the detection sensitivity under
“1.5” when S-1FP type sensor is installed on
a pipe, because the sensitivity would be too
low to detect a leaked water.
Maintenance
Water Alarm operation should be checked to work to
drop a water, or the electrodes or terminals of a
sensor are shorted each other.
And also, check to see such as corrosion and dirt in a
sensor. Especially, in S-1FP, when the sensor is
remarkably dirty with dust etc., the sensor should be
exchanged to new one.
Method to take measure when Water
alarm comes out
When Water alarm comes out, take a cause and a
measure in the following procedure.
If a leakage-of-water alarm comes out,
1) Water is detected by the sensor or not, to check
visually.
- When water is detected, the cause and the
measure should be taken.
- When water isn’t detected, go to No.2 step.
2) The sensitivity adjust volume is turned to “0”, to
check the alarm is stop or not.
- When the alarm is off, go to step No.3.
- When the alarm is continued, go to step No.4.
3) When volume is set as the minimum of the above
"Standard of sensitivity setup", it checks whether
the alarm comes out.
- When the alarm comes out, go to step No.4.
- When the alarm is off, the sensitivity is set up.
However, Water Alarm operation should be
checked to work to drop water, which is
expected to leak, on a sensor.
4) After the power is off and the detector is removed
from the socket, the insulation resistance between
wires of the sensor is measured with an insulation
tester, which voltage is DC100 - 250V, within in 5
seconds. And also, it is measured with a tester,
which is DC1.5V.
Shut off the power before wiring, in order to
prevent becoming an electric shock to touch
the power terminal.
NOTICE：
･Remove the detector from the socket before
measuring the insulation resistance , in
order to avoid break down of the detector.
･Use an insulation tester which voltage is
under DC250V.
<Result of measure>
The sensor detect
the water of slight
quantity, such as
dew condensation
(Note)
- Dry the sensor
- Water is wiped
off
- Wait until
sensor dry
The cause by
which water
leaked is studied
and measures
should be taken.
- False alarm by
outside noise
- Detector is out
of order
- Detector is
broken
- etc
Note) Since concrete has not got dry a few week
after completion of the building, even if
dew condensation water does not appear, it
may have dewed actually.
1: Sensor Open warning lamp
2: Sensor Short warning lamp
3: Water warning lamp
4: Power lamp
5: Sensitivity adjust volume
6: Terminal (11 pins)
Sensitivity
adjust volume
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