Warnings
Strict Prohibitions
Checkpoints
Do not install the detector in the following locations!
Water Leakage Detector
AD-AS-1AM
Instruction Manual
We thank you for using our Model AD-AS-1AMWater Leakage Detector.
Be sure to read the following instructions before installing, adjusting and using the detector.
Use the detector in a working environment with a temperature range between -10˚C, and 50˚C and a
humidity range between 35%RH and 85%RH.
Avoid using the detector near sources of vibration, harmful gas, or strong electromagnetic induction.
For connection to the power supply, avoid using receptacles (sockets); use fixed wiring connection.
Use our products for sensors and break detection terminals (excepting AD-LS sensors and ZT-L2
products).
Be sure to affix the insulating sheet to the terminal block, fix the outer cover and check detector operation.
Smoke or abnormal sound occurrence with the power indication LED turned off indicates detector failure.
Switch off the main power breaker, stop using the detector and contact us.
Check at least once every six months to confirm that detector is operating normally. At the same time,
check to see that screws on different parts of the detector are tightened properly.
Be careful of water-repellant substances, such as oil, adhering to sensor surface and interior; this may
interfere with correct detector operation.
If a sensor is stained with dirty water, replace it with a new one.
This detector is delivered to customers after strict quality control and inspection. Should it fail under normal
usage, we will repair it free of charge or replace it during the warranty period (within one year of delivery).
* Detector failure due to natural disaster, fire, unauthorized repair, dropping or damage after purchase is not
covered by the warranty.
Ask place of purchase for the guarantee document.
When asking for the guarantee document, provide detector serial number (indicated on label on right-side
face of the right-side terminal block).
Handling Method
Typical Configuration of Water Leakage Detection System
* Using vinyl tape or similar material, insulate the connections of water leakage sensor break detection
terminals and instrumentation wires (it is recommended that they be housed in a box.), and fix them at a
location above the floor to keep them from getting wet.
Operating the Detector and Checking Detector Operations
Checking power-on
Power-on causes the power indicator LED (yellow) to light.
Checking water leakage detection function
Checking water leakage detection test function:
Pressing buzzer stop and reset buttons simultaneously for three seconds or more causes output of
simulated water leakage alarms (water leakage indicator LED flashing output, buzzer sounding
output,and water leakage alarm contact output).
Checking water leakage detection function with water:
By allowing tap water to drip on the sensor, you can check how well the sensor detects water
leakage. Wipe off water with dry cloth after check to restore sensor to operational state for water
leakage detection.
Checking of the break detection function
Checking break detection test function:
You can check break detection function without removing break detection terminal or sensor.
Pressing buzzer stop and reset buttons simultaneously for three seconds or more causes output of
simulated water leakage alarm; pressing both of them for three seconds after this causes output of
simulated break alarms (break indicator LED (green) flashing output; buzzer sounding output; break
alarm contact output).
Note: Break alarm is also output when the break detection function is “not activated.”
Checking actual break detection function:
Remove outer cover
,
insulating sheet and the terminals connected to sensor (I) on the terminal block
to check actual break detection function.
After checking, reattach terminals, insulating sheet and outer cover.
Buzzer stop button
If this button is pushed while buzzer is sounding, buzzer stops sounding until next alarm.
Reset button
If reset button is pushed while the alarm is being held with alarm hold setting activated, alarm output is
reset.
If reset button is pushed with alarm hold setting not activated or under normal conditions, lamp test can
be performed.
All LEDs are lit and buzzer is sounds (with monotonous tone). Under this condition, control output
contacts do not operate.
<<<Important safety instructions>>>
Erroneous operation of this water leakage detector not complying with the warning labels or the following
warnings may lead to fatal accident, serious injury, electric shock, fire, or detector failure.
Never modify or disassemble the detector.
Observe ratings of power supply voltage and contact capacity.
Allow only persons responsible for handling this product to perform installation work on it or to adjust
or inspect it with the outer cover opened.
After the detector is installed, do not leave it with the cover open, except for inspection and
maintenance purposes.
Do not touch any internal component with wet hands.
When performing maintenance on the product, avoid using organic solvent. Use dry wiping rags or a
small amount of diluted neutral detergent.
Note: Be careful not to allow detergent solution to remain on the sensor.
Check detector supply voltage and rated voltage before installing.
When installing and electrically connecting the detector, follow the instructions in the instruction
manual.
When inspecting and maintaining the detector, follow the instructions in the instruction manual.
When using control output contacts, check the contact rated load in the instruction manual.
Locations easily accessible to the general public
Locations close to sources of vibration, organic gas or strong electromagnetic induction.
Locations with much waste and dust
Locations where there is possibility of water leakage and temperature and humidity are high
Detector Specification
Rated voltage
AC 100 V to 240 V (common to 50 Hz/60 Hz); voltage fluctuation: within ±10%
Sensor interelectrode
voltage
Break detection terminal not provided: AC 2.8 V or less
Break detection terminal provided: AC 1.5 V or less
Interelectrode
short-circuit current
AC 0.13 mA or less
Power consumption
3 VA or less
Working ambient
temperature and
humidity
-10˚C to 50˚C (no icing); 35%RH to 85%RH (no condensation)
Outside dimensions,
weight and color
W120
´
H124
´
D55 mm; 300 g ± 20 g; ivory white
Number of sensor
circuits
One
Water leakage
detection and recovery
levels
Factory default setting: Break detection function “activated”
Detection level: 5.0 kΩ
*1
/recovery level: 6.7 kΩ ± 20%
*1: Combined resistance of 6.7 kΩ for an isolated sensor and 20 kΩ for a break detection
terminal (ZT-2)
* Sensor with break detection terminal or break detection terminal (ZT-1) must be
connected.
Alarm output
Buzzer; water leakage indicator LED (red) flashing; break indicator LED (green) flashing;
water leakage alarm contacts (no voltage, 1c); break alarm contacts (no voltage, 1c)
Resistive load
Inductive load
Rated load
AC 250 V, 6.0 A
DC 24 V 6.0 A
AC 250 V 3.0 A
DC 24 V 3.0 A
Relay contacts: FTR-LYCA005 according to catalog of Fujitsu Component Limited
Detector Setting Method
Dip switch (DIP-SW) setting
To select dip switch (DIP-SW) positions, use a thin flat-blade screwdriver to move tiny sliders.
Setting item
Description
Factory default setting
Break detection
setting
Break detection setting
activated/not activated
Break detection setting
activated
DIP-SW-4
ON
Alarm hold setting
Alarm hold setting
activated/not activated
Alarm hold setting not
activated
DIP-SW-3
OFF
Fail-safe setting
Fail-safe output
activated/not activated
Fail-safe output not
activated
DIP-SW-2
OFF
Buzzer sound
setting
Buzzer sound setting
activated/not activated
Buzzer sound setting
activated
DIP-SW-1
ON
* “Alarm hold” denotes function of holding alarm until reset button is pressed.
* “Fail-safe setting” denotes setting to reverse contact logic so that system can judge detector power
supply OFF state to be an abnormality. This setting reverses action of N.O. (Normally Open) contacts
and N.C. (Normally Close) contacts. Under this setting, power-on causes contacts to operate.
Knob adjustment
Use a thin flat-blade screwdriver to adjust VR-1 and VR-2.
Setting item
Adjustment range
Factory default setting
Buzzer volume
adjustment
Buzzer volume between
“low” and “high”
Buzzer volume “high”
VR-1
Clockwise to
maximum
Detection level
adjustment
2k-5k-14 k
W
±
20%
5.0 k
W
±
20%
VR-2
Middle
position
* Factory default setting is value at which water leakage sensor
*1
can properly detect the presence of
common city water.
*1: Line sensors (AD-S, AD-RS, AD-HS, and FR-AD): within 100 m; point sensor (AD-PA)
Our suggestions: When detecting a low conductivity liquid or using a low-sensitivity water leakage
sensor (such as AD-FH), raise detection level; conversely, when detecting a high conductivity liquid or
installing detector in a high-temperature, high-humidity environment, lower detection level.
Water leakage
detection/recovery level ±20%
With break detection setting
“activated”: (Factory default
setting)
With break detection setting
“not activated”
Adjuster position
Detection level Recovery level Detection level Recovery level
Adjuster at the minimum
setting
2.0 k
W
2.8 k
W
2.2 k
W
3.3 k
W
3.0 k
W
4.2 k
W
3.5 k
W
5.3 k
W
4.0 k
W
5.5 k
W
5.0 k
W
7.5 k
W
Adjuster at middle setting
(Factory default setting)
5.0 k
W
6.7
k
W
6.7 k
W
10.1 k
W
6.0 k
W
7.8 k
W
8.6 k
W
12.9 k
W
7.0 k
W
9.0 k
W
10.8 k
W
16.2 k
W
8.0 k
W
10.0 k
W
13.3 k
W
20.0 k
W
9.0 k
W
11.0 k
W
16.4 k
W
24.6 k
W
Adjuster at maximum setting
14.0 k
W
15.6 k
W
46.7 k
W
70.0 k
W
Cautions in installing and handling the detector
Maintenance and inspection
Guarantee
O
N
1
2
3
4
AD-AS-1AM-1
VR–1:
Buzzer volume
adjusting knob
VR–2:
Detection level
adjusting knob
DIP-SW:
Function-setting
switches
* After peeling off insulating sheet and changing
settings, be sure to reattach sheet.
Insulating sheet
Ｏ
Ｎ
１
２
３
４
DIP-SW
VR
AC power supply
Instrumentation line for
control output contacts
Instrumentation line for sensors:
0.3 SQ or more, within 100 m
Water leakage sensor: within 100 m
Break detection
terminal
AD-AS-1AM
P O W E R
WATER LEAKAGE
CUT-OFF SENCOR
BUZZER STOP
R E S E T
WATER-LEAKAGE
DETECTOR
Connected to the
central monitor
panel and others
Tatsuta Electric Wire &cable Co., Ltd.
AD-AS-1AM
P O W E R
WATER LEAKAGE
CUT-OFF SENCOR
BUZZER STOP
R E S E T
WATER-LEAKAGE
DETECTOR
Break indicator
LED (green)
Buzzer stop button
Reset button
Power indicator
LED (yellow)
Water leakage
indicator LED (red)
Tatsuta Electric Wire & Cable Co., Ltd.
CN1
Break detection
Alarm hold
Fail-safe
Buzzer
VR1
VR2
Power
Water
leakage
Break
Sensitivity
adjustment
ON OFF
Reset
→
Buzzer stop
H
M
L
Buzzer
volume
Detection
sensitivity
Loud
High
100V
200V
Ground
Sensor (I)
Sensor (O)
AC power input
ＮＣ
ＣＯＭ
ＮＯ
ＮＣ
ＣＯＭ
ＮＯ
！
■
Electric shock!
* Do not remove this
protective sheet.
* Do not insert foreign
bodies into the
opening.
* Do not touch with wet
hands.
Caution
L ong- pushing the buzzer stop
a nd reset buttons together
(for 2 sec.) allows you to
check how the detector circui t
a nd relay opera te.
Water leakage
Break
If you have any questions about handling the detector, contact:
