KAM Simple Precision
LRW Low Range Watercut meter
153-023-080-05 2-Sch80-600 OWD FT 2in Sensor with 2_5 Elements FL-4 Transparent

LRW™ spool model with included static mixer and manual draw off port

A superior option to traditional BS&W technologies, the patented KAM LRW™ Low Range Watercut meter offers the high accuracy and repeatability of microwave measurement in a package specifically designed for custody transfer and other low range applications. 

Unique to the LRW™, AnyDensity™ technology allows the instrument to compensate for any change in density across the entire API gravity range.* This is paramount in situations where a single truck or rail unloading site could see swings in API gravity from the 20’s to the 60’s.  

KAM LRW fixed insertion model for pipelines 2" and up

LRW™ fixed insertion model for pipelines 3″ and above

The patented and proven microwave technology used in the LRW™ provides industry-leading accuracy – as low as ±0.03% on 0-3% models. And, high quality components made and assembled entirely in the USA provide reliable and consistent performance for long-term use. Plus, the unit can easily be calibrated in line.

With insertable and spool/flow through models, the LRW™ also offers installation flexibility that no other unit can match.  Spools can be custom fabricated for lines 1-2” and lengths 21” and above. Spools also incorporate static mixing elements to ensure a homogeneous flow and manual draw-off valves key for calibration and verification. Fixed insertion and insertable models can be installed on a 2″ port perpendicular to the flow. 

* requires density input

Related Links:

API MPMS Technical Report 2570 Continuous On-line Measurement of Water Content in Petroleum


  • The patented and proven microwave resonance technology used in the KAM LRW™ Low Range Watercut meter allows for ±1% full scale accuracy in a package specifically designed for custody transfer and other low range applications.
  • AnyDensity™ technology allows the instrument to compensate for any change in density across the entire API gravity range (Density input required).


  • Patented microwave resonance technology
  • AnyDensity™ density compensation for full API gravity range
  • Highest accuracy available (0.03%)
  • Automatic temperature correction
  • Spool and insertable models available for maximum installation flexibility
  • Real-time continuous water percentage
  • Local display
  • Up to ANSI 900
  • Easily field calibrated


  • Flow through spool model: 2”, 3” or 4” flanged flow through spool. Includes static mixer and manual draw-off valve
  • Fixed insertion model: 1.25” NPT or 2”, 3”, or 4” flange connection for 3" and up pipelines
  • Insertable/retractable model: 2” MNPT; 2”, 3”, or 4” flanged seal housing


Range (water in oil) 0-3% 0-5% 0-10%
Accuracy (at listed range) ±0.03% ±0.05% 0-10% models ±0.05 below 5% water, ±0.10 between 5 and 10%


Media: Crude oil and refined products
Material: Wetted parts – 316 stainless steel, hastelloy, and PEEK
(Other materials available) 
Fluid temp: To 176ºF (80ºC)
Electronics temp: -40º to 158ºF (-40º to 70ºC)
Power requirements: 24 VDC
Power consumption: 12 watts
Accuracy: 1% of range
Repeatability: +/- 0.01%
Resolution: +/- 0.01%
Pressure ratings: ANSI 150, 300, 600, 900
Min. detection: 100 PPM
Temp. correction: Automatic
Density correction: AnyDensity™ compensates for changes in density across entire API gravity range*
Flow conditions:  Well mixed in accordance with API MPMS Chapter 8.2
Hazardous areas: PTB 08 ATEX 2016 Issue 01
IECEx PTB EX 19.0048
Ex db IIB T6 Gb 
Enclosure hazardous approvals: Explosion-proof for Class I, Division 1, Groups B, C and D
Dust-ignition-proof for Class II/III, Division 1, Groups E, F and G,
hazardous (classified) locations, indoors and outdoors (Type 4X/IP66)


  • 4–20 mA
  • Alarm or relay
  • RS232 ASCII (calibration and diagnostics only)
  • RS485 Modbus 

  • *requires density input