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Measurement Of Horse Power, Kilowatts, Energy – Model UPC Power Cell

Measurement of Horse Power and kW

Lexcom Consultants Solutions develop industrial as well as scientific test & measurement solutions – which allow measurement of HP, Energy and Real Power, Active power. Test and measurement systems have been at the core of our business for more than a decade. Utilising our well-exercised LabVIEW expertise in this area, we develop our own industrial automation products, which we offer to the market in conjunction with our established experience in the integration of such systems. In addition to integrating and automating instruments within the scope of the actual LabVIEW software projects we deliver, we also develop reusable LabVIEW drivers on demand, for end-user clients as well as instrument manufacturers.




  • Pump or Fan Flow
  • Mixture Viscosity
  • Optimum Feed Rate
  • Tool Condition
  • Beginning of End Process
  • Obstructions
  • Overloads
  • Loss of Load
Load hr UPC


Model UPC
Adjustable Capacity Power Sensor

Power Monitoring Made Easy

  • Monitor motor power with DUAL analog outputs for meters, programmable controllers, chart recorders
  • Adjust full scale to match your motor – Max. sensitivity from small motors clear up to 150HP
  • Self-contained – No PTs or CTs to install
  • Versatile – Works on both Fixed and Variable Frequency, even Single Phase and DC
  • No Intrusive Connection



230VAC Powered UPC

Fast Response Universal Power Cell

0.050 Second Response Time
Ideal for Machine Tool Monitoring
Also used together with “V” Series Load Control

Larger Holes

For wires up to 0.9″ (23 mm) diameter
Nearly 50% more area than a standard UPC

Energy Measuring Universal Power Cell

Accumulates Kilowatt Hours, Kilowatt Minutes, Kilowatt Seconds
Accumulates total power into the mixing process for consistent batches
Accumulates power–indicative of throughput

UPC Three Phase Power Sensor Specifications

Accuracy 0.5% Full Scale * * * *
Full Scale Capacity 5HP** to 150HP * * 5HP to 150HP larger 0.9″ holes 3KW** to 100KW
  • 4-20mA, 500Ω max connected impedance
  • 0-10V DC 2000Ω minimum load
* *
  • Relay: 30V, 5mA mx, 50ms duration pulse
  • 0-10V DC
3KW** to 100KW
Response Adjustment 0.5 Sec to 12 Sec * .050 Sec to 1.2 Sec * KWH, KWM, KWS
Frequency 3Hz to 1kHz * * * *
Power Consumption 6VA at 120V 1VA at 230V * * *

*Specifications same as UPC unless noted

**For smaller motors take extra “turns” (Example: A 10HP unit is reduced to 5HP by taking two turns through each hole. It is reduced to 3.33HP with three turns, etc.


UPC kW and AC Power Sensors

You can assess the kW load on an electric motor by measuring the electric current flowing to the motor (Amps). Typically this is not an ideal way since a lightly-loaded motor does not use the electricity very efficiently. In other words, the power factor is low.

A better way to understand the load is to measure the electrical motor power, measured in Horsepower or Watts. Motor power has a straight line relationship, so it works well even when the motor is lightly loaded.

Our UPC AC Power Sensors measure the motor load (Horsepower or Watts) and send an analog signal to meters, data acquisition equipment, computers or PLCs. Using this method, the operator can see load status allowing the controlling PLC or computer to make decisions.

The typical way to measure power, with non sinusoidal wave shapes is fairly complex. However our CE marked UPC range of Power Sensors offers customers a simple solution

A Powertek UPC Power sensor measures motor power in kW. In addition, it has built-in relays and set points, which means the user can adjust the set point, if the motor load reaches the set point, a relay will trip. The relay acts as a switch and is used to turn on/off the machine, sound an alarm, or adjust the machine feed rate.