4. Configuration of Water Leakage Location Detecting System
The Water Leakage Location Detection System consists of the following components:
1) Water Leakage Location Detector (AD-AS-1LDMA)
2) Water Leakage Sensor (AD-LS)
3) Break Detection Terminal (ZT-L2)
Each connection of terminal block is described in Chapter 5.
General instrumentation cables:
Joint box
・Central monitoring board
・Sequencer
・Control circuit, etc.
Break Detection Terminal
ZT-L2
Water Leakage
AD-LS Sensor
Contact output
*Option
Water leakage location
data output (4-20 mA
output)
＊電源入力
AC24V
or
DC24V
Water Leakage Location Detector
AD-AS-1LDM
Grounding
Triplex, twisted wiring conductor: 0.9mm
2
min. in area and 1000m max.
in length
Triplex, single wiring conductor:
φ
10mm min. and 1000m max. in length
LP 1000m
SL 1500m
LEAKAGE LOCATION DETECTOR
Buzzer Stop
Reset
Length
Leak Point
AD-AS-1LDM
Power
E
1
2
3
Sensor
Alarm
COM
NO
Power
Option
AC/DC
AC/DC
Address
RS485
RS485
Setting
S
S
Baud rate
Setting
Maintenance
(Don’t care)
4-20mA
Reports to the host system by Modbus communication.
Drawing 2 Water Leakage Location Detecting System
5. External Connection
AD-AS-1LDMA has a terminal block as shown in Drawing 3. (Make connections securely in conformance to
Sections 1 to 5.)
LEAKAGE LOCATION DETECTOR
Buzzer Stop
Reset
AD-AS-1LDM
① ② ③ ④ ⑤
Power Power Grounding
Drawing 3 Layout Drawing of Terminal Block
5-1 Power Connection
Before connection, check that the power supply voltage is within the range of use and check the polarity, then
connect it securely to the terminal block.
* Inputting a power supply voltage outside the range of use may cause malfunctions and failure of the
detector, so care should be taken.
①
AC 24V (DC 24V +)
②
AC 24V (DC 24V -)
③
AC 24V (DC 24V +)
④
AC 24V (DC 24V -)
*
③
and
④
is terminal block for transition wiring. Inside the detector,
①
is connected to
③
, and
②
is connected
to
④
.
Connecting the power source to
①
,
③
or
②
,
④
may cause short, so care should be taken.
-2-
Power
AD-AS-1LDMA
1.0
AD-AS-1LDMA
