2852-DPM Dry Pump Monitor

2852-DPM Dry Pump Monitor


The 2852-DPM Dry Pump Monitor offers pipe monitoring for dry conditions to protect pumps and equipment. Combining the technology of capacitance with unique sensor designs provide non-intrusive monitors for liquid handling systems. The result is a low cost and low maintenance system to determine the presence or absence of product in a pipe or pump.

The Dry Pump Monitor observes a cross sectional area of the pipe and locks in on the capacitance field of the fluid passing through. A change toward a dry condition or a liquid of a different dielectric will upset the capacitive field and initiate an alarm.

The sensing plates are embedded into a wafer flange which provides monitoring without any intrusion into the stream flow.

Features & Benefits

  • Wafer flange sensor for easy installation
  • Adjustable time delay and sensitivity to eliminate nuisance alarms from bubbles
  • Remote electronics via standard twisted pair
  • Sensor available Intrinsically Safe for Hazardous Locations
  • PVC wetted parts for corrosive environments
  • Capacitance technology responds to all types of liquids
  • Non-intrusive sensor design does not restrict flow
  • Capacitance technology responds to any liquid type
  • No moving parts
  • Remote alarm unit mounts safely away from pipe
  • No intrusion into stream flow

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


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 PVC (optional PVDF)






Sample Specifications