WS Weight Scale


WS™ Weight Scale and Controller

The KAM WS™ Weight Scale is designed for integration with the KAM CSS™ Complete Sampling System and is used to verify sample volume in Sample Receivers per API MPMS 8.2/ASTM D4177 and ISO 3171. Weight Scale units (generally 2) are placed inside a KAM SRH™ Sample Receiver Housing, and the KAM SR™ Sample Receivers are placed on top of the Weight Scale platforms. Each Weight Scale unit communicates with the KAM SC™ Sampler Controller via 4-20 mA. The 4-20 mA signal directly correlates to the current weight of the Sample Receiver and its volumetric equivalent. In this way, operators can remotely monitor for accumulated sample volume, and automatically switch to a second Sample Receiver for continued sample collection once the first receiver is full.

The WS™ Weight Scale may be purchased individually or can be ordered with the any of the elements of our KAM CSS™ Complete Sampling System, which also includes an in-line automatic sampler, a pipeline mixer, a Sampler Controller, and a Circulating Sample Mixer.

CLICK HERE to learn more about automatic sampling systems.

CLICK HERE to contact us with questions or sales inquiries.

Related Links:

API MPMS Chapter 8.2 Automatic Sampling Standard

ASTM D1447 Automatic Sampling Standard

ISO 3171 Automatic Pipeline Sampling Standard

Download WSC Software:

Version 1.1

Version 1.2


  • Sample Receiver volume confirmation
  • Truck loading, unloading
  • Marine loading, unloading, lightering
  • Pipeline
  • Production
  • Refinery


Models can be calibrated to different weight ranges corresponding to the appropriate receiver size.

  • 0-60 lbs (0-27 Kg) Standard for use with 3 or 5-gallon sample receivers
  • 0-100 lbs (0-45 Kg) Standard for use with 3, 5 or 10-gallon sample receivers
  • 0-200 lbs (0-91 Kg) Standard for use with 10, 15 or 20-gallon sample receivers


Material: Stainless steel and aluminum
Supply voltage: 10–24 VDC
Signal output: 4–20 mA
Temperature range: 0–185°F (-18°– 85°C)
Sensitivity: 2 mV/Volts ±10%
Maximum weight: 0-60 lb. model – 90 lbs
0-1 00 lb. model – 150 lbs
0-300 l b. model – 450 lbs

 Weight Scale is intrinsically safe. 

Weight Scale Controller is housed in an explosion-proof enclosure.



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