Light Engineered Displays WD-4 Control Panel - Manual

 Power Input
115 VAC, 60 HZ .5 AMP.
 Operating Voltage
12 VDC, Internal 12 VAC
54 HZ Detection Loop
 Battery Backup
12 VDC, 1.2 amp/hr battery
with automatic charger
 Indicators
LED Type, for Alarm, Trouble and
Power On status
 Outputs
Sonalert and Form-C contacts
Specifications
General Description
A Division of:
Light Engineered Displays, Inc.
109 Portwatch Way
Wilmington, N.C. 28412
Phone: (800) 251-2512
Fax: (800) 251-9878
Internet: www.ledinc.com
Email: [email protected]
WD
SERIES
ZONE LEAK
DETECTION SYSTEM
The AquaALERT water detection system, featuring models WD-1 and WD-4, is specifically designed for water leak detec-
tion in concealed areas or any place water intrusion must be identified immediately so that corrective action can be taken.
Applications would include Electrical or Telephone Equipment rooms, Computer Room subfloors, or any sensitive area that
is not normally occupied. Additionally, this system can be used to detect leaks along fluid piping lines. Also, fluid levels can
be detected with our optional float switches (see the 6200 Series cutsheet located in the Miscellaneous section of our
catalog).
The unit is housed in a metal backbox, with a key-lockable plexiglass door. All indicators and switches are visible from the
front of the unit.
The system is designed to work with AquaALERT water detection cable, model WDC-100. Low voltage A.C. is used to
supervise the detection loop. This eliminates Electrolysis of the sensing wires woven within the detection cable, a common
problem with other systems.
Basic Operation
The WD Series Water Detection System contains one or four fully supervised detection zone(s). The circuit must be termi-
nated at the end of the line with a 15K Ohm, 1.2 Watt resistor.
Normal (standby) operation is indicated by a green “Power On” LED.
An Alarm condition occurs when water comes in contact with the Water Detection cable. A Trouble condition occurs when
the wiring to the sensor, or the wires within the cable, are broken.
When an Alarm condition occurs, the Red LED will light, the Sonalert will sound, and the Aux. relay contact will close. The
Sonalert can be silenced by operating the momentary Acknowledge switch. The Red LED will remain lit until the Alarm
condition is corrected. At that time, the LED will reset itself. The sequence is the same for a Trouble condition, except a
Yellow LED will be illuminated. Multiple Zone Units have subsequent alarm features.
Model WD-1
Model WD-4