2882-LS Probe Mounted Level Switch

2882-LS Probe Mounted Level Switch


The 2882-LS Probe Mounted Swithc provides reliable level alarm and control of liquids and solids. As a liquid or solid rises or lowers around the probe, the capacitance field changes. This is monitored and used to control the two on-board relays.

Each relay includes full differential control to allow the relay to activate and de-activate between two distinct at user determined points on the probe. This can be used for pump and valve control between high and low level points. Adjustable time delay is standard to suppress spurious alarms from turbulence.

Hazardous Location Use

Available Component Certifications may be suitable to your application. Consult Arjay for assistance.

  • 2880 Electrical Safety UL, CSA, or IEC 61010
  • Housing UL/FM/CSA
  • Class 1, Group B,C,D;
  • Class II, Group E,F,G
  • Probe CSA Class 1, Group C,D

The electronics for this model can also be mounted remote from the probe. Refer to the Model 2852-LS. The probe becomes Intrinsically Safe when ordered with an IS Barrier installed in 2852-LS control panel: CSA Div 1, Class 1, Groups A,B,C,D

Features & Benefits

  • No moving parts
  • Remote electronics via standard twisted pair
  • All set-up, calibration and diagnostics is done at the control panel
  • All control wiring and interface is done at the control panel
  • HF capacitance technology does not require routine cleaning
  • Touch screen interface for easy set-up and user interface
  • Tank view display for ease of reading
  • Trend display of hour, day or month increments
  • Single point calibration
  • Relays for valve control, alarms and pump run-time
  • Unique capacitance approach eliminates routine cleaning
  • Control and interface panel mounts safely away from the process

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, 0.1 amp max.
100-240 vac +/- 10%
Communication RS-485 Modbus
Control Interface 2 x 10amp@240 vac, SPDT, dry relays plus 4mA Normal / 20 mA alarm output


Process Temp. -60°C to +260°C (Teflon probe)
Pressure 103 bar/10342 kPA/1500psi
at stable temperature
Wetted Parts 316SS and Teflon

Probe materials are eligible for NACE MR-0175 Compliance





Sample Specifications

Product Image