2880-OWI Oil/Water Interface Transmitter


Features and Benefits
  • no moving parts
  • electronics is integral to the probe
  • high corrosion resistant Teflon and stainless steel wetted parts
  • capacitance technology responds to all oil types
  • HF capacitance technology does not foul or require routine cleaning
  • easy calibration and control set-up
  • remote monitor mounts safely away from the process
Click for Product Detail

Reliable monitoring of oil/water interface
and emulsions

The sensing probe continuously monitors the capacitance of the inserted probe. As the interface or emulsion layer (rag layer) crosses over the probe, a proportional 4-20 mA output is provided. Typical applications include oil water separators, oil/water knock-out tanks, treater trains and decanting tanks.

The 2880-OWI sensing probe monitors the capacitance field around the probe. A calibration is performed against the an oil condition and a water condition. The active portion of the probe is fully submerged into the liquid and sized to your targeted range of interest. As the oil/water interface or emulsion crosses or envelopes the probe, the capacitance change is tracked and an output of 4-20 mA is provided.

Technical Specifications - Electronics

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
2880-OWI 0/4-20 mA non-isolated output
2881-OWI 0/4-20 mA isolated output
2882-OWI 0/4-20 mA non-isolated output and 2 x 10amp@240 vac, SPDT, dry relays

Optional
Viewing window of % Level LCD

Technical Specifications - Probe

Process Temp. -60°C to +260°C (Teflon probe)
Pressure 103 bar/10342 kPA/1500psi
at stable temperature
CRN ABSA-CRN #OF07450.2
Wetted Parts 316SS and Teflon

Probe materials are eligible for NACE MR-0175 Compliance

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-OWI. The probe becomes Intrinsically Safe when ordered with an IS Barrier installed in 2852-OWI control panel: CSA Div 1, Class 1, Groups A,B,C,D

Documentation

Brochure
Manual
Dimensional and 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