2852-LPS Area Leak Alarm


Features and Benefits
  • sensor pads can be placed in key locations and tight spaces
  • up to 3 sensor pads can connect to one control unit
  • adjustable time delay and sensitivity to eliminate nuisance alarms
  • remote electronics via standard twisted pair
  • sensor available Intrinsically Safe for Hazardous Locations
  • high grade epoxy and PVC wetted parts allow for corrosive environments
  • capacitance technology responds to all types of liquids
  • capacitance technology alarms on any liquid
  • no moving parts
  • remote alarm unit mounts safely away from monitoring area
  • available for hazardous rated locations
Click for Product Detail

Reliable monitoring of liquid leaks in containments and floor spaces

The Leak Pad Sensor (Area Leak Alarm) can be placed on containment floors and pans to alert on a dry vs. wet condition. These can be placed around a tank, in electrical and computer vaults, and in pump stations.

The 2852-LPS sensor monitors the capacitance field between the sensor pad and the floor. A single push button calibration at the controller locks in on the capacitance field of all sensing pads. Any liquid that intrudes into the pad space will increase the capacitive field and initiate an alarm.

Technical Specifications - Control Unit

Operating Temp. -20˚C to +55˚C
Resolution .007% (.07 pF at 1,000 pF)
Accuracy .04% of full scale pF
Power Input 12 vdc or 24 vdc or 100-240 vac +/-10%
Alarm Relay 2 x 10 amp@240 vac, SPDT, dry
Analog Output 4 mA normal/20 mA alarm
Communication Modbus RS-485
Certified UL 61010-1, 2nd Edition
CAN/CSA-22.2 61010-1-4
IEC/EN 61010-1, 2nd Edition
IEC 61326-1
CE Declared
Enclosure Type 4/IP 66 painted steel
or Type 4X/IP 66 polycarbonate or SS
Optional Light, buzzer, beacon

Technical Specifications - Sensing Pads

Operating Temp. -60˚C to +55˚C
Intrinsic Safety CSA Intrinsically Safe when ordered with Approved Barrier in Control Unit
Div 1, Class I, Groups A,B,C,D;
Class II, Groups E,F,G;
Class III, Encl. Type 4
Wetted Parts High grade marine epoxy and PVC
(optional PVDF/TFE).

Sensor materials are eligible for NACE MR-0175 Compliance

Documentation

Brochure
Manual
Dimensional & Electrical Drawing
Sample written specification

Related Papers from our library

What is Capacitance?

2014 ~ Arjay Engineering - all rights reserved. ArjayEng.com +1 905-829-2418