Bluetech LD Series User manual

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Operating Instructions
Leak Detector (LD) Series
Document Information
This manual complements the technical information in the product datasheet LD-B-22.04S, which can be
found on our website, www.bluetechcorp.com.
Basic Safety Instruction
Designated Use
Use of the device for any purpose other than that described may pose a threat to people's safety and/ or of
the measurement system and is therefore not permitted.
The manufacturer is not liable for damage caused by improper or non-designated use.
The entire length of cable is the sensor. Spread the sensing cable as necessary to areas required for
monitoring and secure the sensing cable with cable clips.
Floor Surface
2.0 ft
0.6 m
Leak
Detector
Sensing
Cable
4.1 in
105 mm
#8 Screws
(4 mm )
Drill two holes with center to center distance of
about 4.1 inches. Mount the device using one pair
of #8 (4 mm) screws. The device can be installed in
any position as required.
1.0
2.1
Installation
Mounting
The Leak Detector device can be mounted to the
nearest wall of the area required for monitoring. We
recommend this device to be installed at least 2 feet
(0.6 m) from the floor.
3.0
3.1
2.0
Floor Area
Leak
Detector
Sensing Cable
Cable Clips

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6850 N. Haggerty Road,
Canton, MI 48187, USA
[e-mail]
Wwww.bluetechcorp.com
Copyright BlueTech Corporation. All Rights Reserved. LD-B-22.04OI
Electrical Connection
SENSING CABLE L1
SENSING CABLE L2
LEAK
DETECTOR
DEVICE
Supply Voltage
WARNING
Supply voltage may be connected!
Risk of electric shock!
• When using the detector device, installation
must comply with the corresponding national
standards and regulations as well as these Safety
Instructions.
Relay Output
• The relay is in Form-C configuration
(NO, NC, COM), 10 A, 277 VAC rating. 1 Auxiliary relay
option is available if needed.
• Relay terminals are isolated from the board power
supply; and relay will connect COM to either NC or
NO terminal.
• Connect the sounder or alarm digital input signal to
the output NC relay terminal as the relay is in reverse
action configuration. Test the operation a few times
and verify functionality once connected to ensure
proper operation.
Cable Specification
• Use 22 AWG wire for all connections, preferably
twisted, screened cables.
• Do not locate the device wires in the same conduit
with inductive load wiring such as motor wiring.
!
Commissioning
Start-up
Verify that the device is correctly wired according to
the wiring diagrams and all secured. Once verified,
apply power accordingly.
5.0
5.1
Operation
The Leak Detector device, once in operation, will continuously energize the relay in the circuit. In normal
condition, the output NC relay will be in open/ disconnected position and the output NO relay will be in
contact/ closed when power is supplied to the device. The device will maintain this status until leaking will be
detected from the sensing cable.
Once leaking is detected by the sensing cable, the output NC relay will be in contact or closed and the output
NO relay will be released/ disconnected. The device will maintain this status until leaking will be resolved or
the sensing cable dries out or no longer in contact with any liquid.
As the relay is in reverse action configuration, once power is interrupted in the device, the output NC relay
will be in contact or closed and the output NO relay will be released/ disconnected. Once power is supplied
again, the device will return to its normal condition.
5.2
4.2
4.3
4.0
4.1
24 VAC or 24 VDC
Power Supply
A
B
A
B
A
B