m20 shaft power monitor

The Emotron M20 offers reliable, repeatable results for monitoring and protecting machines and processes against abnormal conditions. The M20 reduces overall maintenance costs by monitoring motor power to eliminate potentially hazardous conditions. With over 500,000 units installed worldwide, it's easy to see why the M20 is the world's most trusted motor monitoring solution.

Low-cost installation and zero maintenance

Using the motor as a sensor eliminates the need for external sensors and extra cabling, and no holes need to be made in pipes. The result is increased reliability and reduced investment, installation, and maintenance costs.

 

Looking for a monitoring solution for submersible pumping applications?

 

Technical Data

 

emotron m20

Supply Voltage:    100-240V / 380-500V / 525-690V
Frequency:             50 Hz / 60 Hz
Rated Current:      Up to 999 A via current transducer
Protection Class:  IP20
Approvals:             CE, UL, cUL

 

product literature

 
Click here to download product literature for the FDU Variable Frequency Drive.
 

Click below to view downloadable documents related to this product.


Animated video demonstrating the advantages of protecting your pumps with the Emotron M20.

Shaft power monitoring vs. the competition

Unlike Amp / Current monitors, the M20 Shaft Power Monitor reliably protects motor driven equipment from abnormal process conditions such as pump dry run or jamming of a conveyor. In addition to providing inexpensive overload and underload protection, the M20 also provides process optimization and load control capability. Typical applications include conveyor monitoring, pump monitoring, and grinder monitoring.

The M20 achieves accurate and repeatable results by using a patented algorithm to achieve true shaft horsepower, which enables the M20 to provide protection against conditions such as:

  • Overload
  • Jams
  • Loss of load
  • Misplaced parts
 

Key Features of the M20

>SHAFT POWER MONITORING The M20's ability to monitor power at the shaft of the motor results in highly accurate and repeatable protection of the driven equipment.

>SHAFT POWER MONITORING

The M20's ability to monitor power at the shaft of the motor results in highly accurate and repeatable protection of the driven equipment.

>SIMPLE SETUP The M20 is quick and simple to setup. The unit can be calibrated and ready to use with a single push of the "Auto Set' key.

>SIMPLE SETUP

The M20 is quick and simple to setup. The unit can be calibrated and ready to use with a single push of the "Auto Set' key.

>SCALABLE OUTPUT The M20 features an analog output signal that can be used as an input to devices such as indicating instruments, controllers, or PLCs.

>SCALABLE OUTPUT

The M20 features an analog output signal that can be used as an input to devices such as indicating instruments, controllers, or PLCs.

 
A demonstration of the M20 Shaft Power Monitor protecting centrifugal and progressive cavity pumps against abnormal conditions.

Unique Shaft Power Monitoring

The Emotron M20 immediately detects over- and under load due to, for example, a pump running dry or a crusher jamming. A unique technique to calculate shaft power results in an accurate and reliable supervision across the whole load range.

Enter your settings in three seconds

The Emotron M20 uses a unique 'Auto Set' feature that allows four protection set points to be established in just three seconds. By pressing 'Auto Set' during normal operation, the warning and stop levels are calculated automatically on the basis of the actual motor load measured. If desired, these levels may also be adjusted, independently of one another.

 
 

 

  • Clarifiers
  • Agitators
  • Blenders
  • Grain Legs
  • Airlocks
  • Grit Collectors

Typical M20 Applications

  • Pumps
  • Conveyors
  • Fans
  • Mixers
  • Mills
  • Bar Screens

M20 Installations by Application type (x 1,000)

 

500,000+ Emotron Power Monitors have been installed worldwide!

high accuracy with scalable output signal

A unique feature offers high accuracy also in the event of very small load variations. An analog current output signal can be used to scale the machine load to the actual working range. The signal can be used as an input to indicating instruments, controllers, or PLCs.

Demonstration of the M20 protecting a pump.

Demonstration of the M20 protecting a rotary airlock.


 

Accurate monitoring whatever the motor load

The Emotron shaft power monitoring technology offers very accurate, reliable, and cost-efficient supervision of electric motor-driven processes. It was patented in 1979 and since then has been the basis for our shaft power monitors as well as a unique integrated feature in our AC Drives and Soft Starts.