Thank you very much for purchasing the Water Leakage Location Detector (AD-AS-1LDMA).
Before using, read this operation manual carefully to ensure correct operation. Keep this manual in a convenient
place for quickreference.
1. Explanation of Individual Parts of Water Leakage Location Detector
The Water Leakage Location Detector (AD-AS-1LDMA) has the functions described in Drawing 1.
LEAKAGE LOCATION DETECTOR
Buzzer Stop
Reset
Length
Leak Point
AD-AS-1LDM
Buzzer Stop Switch
Used for canceling alarm when the alarm hold
setting is activated for indication or the
control output contacts.
Used for stopping the buzzer when the buzzer
is sounding.
Used for setting the detector
number
Already adjusted before
Shipment.Do not change the
Setting.
Sensitivityfine adjustmentVR
Power source AC
24V or DC 24V
Sensor
AD-LS
Break
contact
s
Option Water leakage location
data output 4-20 mA output
Groun-
ding
Terminal block for
external connection
Detector number setting switch
Communication port for coupling
more than two detectors
Alarm Cancel Switch
Operation setting switches
(1) Sounding the buzzer
(2) Alarm hold for leakage location
(3) Meter display, feet display
(4) Alarm hold of alarm contact
(5) Shifting the break contact
(6) Water leakage location data output
Used for setting the operations
shown below by turning the
switches ON and OFF:
(7) Detection sensitivity
Flashes when a water leakage is detected.
Light up when a break is detected.
Light up when the power is turned on.
Alarm indicator LED
Power indicator LED
Spare
Maintenance indicator LED
Sensor length and leakage location indicator
Indicates the sensor length and leakage
location.
Indicates the detector number.
indication
between Contact-a and Contact-b
Drawing 1 Explanation of Individual Parts of Water Leakage Location Detector
2. Installation and Handling Precautions
2-1 Installation
The Water Leakage Location Detector (AD-AS-1LDMA) shall be securely installed in a strong housing, on the
wall, etc. inside a building. Be sure to follow the following instructions when installing this product.
1) Avoid installing the detector in any location subject to high temperature and high humidity, excessively
dusty environments and corrosive gas environments.
2) Install the detector in a location that is free from vibration, away from sources of noise such as power switch, and
convenient for quick maintenance and inspection.
3) Install the sensor using adhesive stickers, adhesive tapes, etc. according to location and environment.
4) Do not insert foreign matters, including drivers, into gaps in the case.
5) Do not use the sensor as electric wire.
6)
Never use sensors other than our product “AD-LS Sensor” and electric wire. This will cause serious
deviation in the location detection function.
2-2 Handling Precautions
1) Use the detector in an environment with a temperature range between -10
and 50˚C and a humidity range
between 35 to 95%*.
*
86% or more is the storage humidity.
2) Do not install the detector in any location close to sources of vibration and harmful gas, and strong
electromagnetic inductive power sources. This may cause malfunction and failures.
3) After installation, be sure to conduct tests in conformance with the operation check items described in
Chapter 6.
3. Maintenance and Inspection
◇
When inspecting the facilities, conduct inspections in conformance with the operation check items described
in Chapter 6.
Note) During inspection of the detector, the control output contacts are functioning, so if the control output
contacts are used, disconnect the wiring or connect temporary wiring in order not to affect other devices.
◇
Be careful to prevent oil-based substances, such as wax, from adhering to the sensor; this may repel water
and interfere with correct detector operation.
◇
If the sensor is tainted with water absorbing substances, electrically conductive dirty water, etc., replace it
with new one.
-1-
Alarm
contacts
