Resistance Measurement, Breaker Timing, Battery Condition Monitoring

The NEW MO 200 digital Micro-Ohmmeter  has a measurement range of 1 micro Ohms to 5 Ohms, and can provide 200 or 300 amps DC for 5 mins. It has Remote Controller and Printer options, and also an optional current clamp to enable measurement of the resistance of a breaker with both sides earthed.  the MO 200 weighs only 9 kg. , and the MO 300 version gives 300 amps for just 10 kg.

The MIC 200 DC Curent Generator version of this instrument can ramp-up the ripple-free current to a preset value up to 200/300 Amps for testing direct current relays, commonly found on Railway networks. It weighs only 9 kg, and the MIC 300 version gives up to 300 Amps from only 10 kg. 


MO 200/300 Brochure

MIC 200/300 Brochure


The CP1 - N is a Two Channel Chronometer for general timing measurements of contacts or their effects. it can time two events and has a programmable output contact with a pulse mode. 

It is easy to use and has an optional inbuilt printer


CP 1 - N Brochure

The CP 4 TR digital chronometer has inputs for timing four sets of contacts and is controlled by a simple menu on a digital display. An in-built printer gives an immediate report, and the results can also be transferred to a PC. There are also 12 & 16 channel versions for testing breakers with multiple chambers in each phase.


CP 4 TR Brochure


CP 1 image

CP 4 Image

Visubat is a Portable (8 kg) lead-acid battery test set which is very easy to use with only two cables to connect. The ability to test a bank of batteries without disconnecting them is a valuable advantage in a protection circuit environment as the protection function is not interrupted. The included software creates and maintains a battery database with a graphic presentation of trends, and automatically prepares reports.


Visubat brochure

  The COTEL Battery Load Unit is used for checking the capacity of storage batteries by discharging them at a constant current to the point where they are considered discharged, and measuring the ampere-hours delivered. Normally used for verifying the capacity of in-service batteries, it can also be used to “run-in” new batteries or those which have been our of service for some time.

 Battery load Unit brochure

Visubat II image

Battery load unit

More detailed information on the complete range of instruments can be found in the Cotel Catalogue or on the COTEL web site


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