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SCOT Series Circuit Breaker Time Interval Meter in all new super light avatars, based on cutting edge micro-controller & embedded technology. SCOT incorporates some state of the art hardware & smart software features making it a must have tool for testing & maintenance engineers. It is compact, lightweight and reliable instrument used for measurement of operation times of all types of HV and EHV circuit breakers under live switchyard conditions.

SCOT M3K+ depending on the type & configuration of circuit breakers.

SCOT M3K+ measures and displays CLOSE, OPEN and C-O times of Main contacts of 3 poles connected end to end, simultaneously. Ideally suitable for CBs with single break per pole.


  • A radically new design makes SCOT the lightest available CB Time Interval Meter.
  • High sampling frequency of up-to 10 KHz offers high timing resolution of 0.1 ms.
  • Mains as well as rechargeable Li-ion battery operated. In built battery monitor and cut off circuit for protection against battery deep discharge.
  • In built real time clock and memory. Test time stamping on each record enables time references for future use.
  • PC Downloading & Analysis including ‘Trend Analysis’ possible with “CData SCOT+” Software supplied with kit.
  • Create CB Identification data (CB Library) on PC and upload to instrument. Save the test results in respective CB folder in kit. Download the same to PC in similar folder structure.
  • Instrument debug options like contact status check, command check, memory check, PC downloading check are provided.
  • Simple operation. Tests can be conducted even by technicians.
  • Supplied with rugged test lead set, suitable for testing EHV CBs.
  • Enclosed in ultra rugged IP67 class hard molded case.


Parameter  SCOT M3k+
Contact Timing Channels  3 (Main contacts of 3 poles connected end to end, simultaneously)
Sampling Speed  10kHz, 5kHz, 2kHz, 1kHz & 100Hz  Selectable
Timing Range  1 Sec, 2 Sec, 5 Sec, 10 Sec & 100 Sec respectively for above Sampling Speeds
Resolution 0.1 ms, 0.2 ms, 0.5 ms, 1 ms & 10 ms respectively for above Sampling Speeds
Accuracy Value ± 0.05% ± 1 Digit
Breaker Control Two solid state contacts rated at 300V, 35A AC/DC for breaker operation
Trigger Options Close, Open, Close-Open
Display 4 Line X 20 character backlit LCD
Memory 1 MB, 100 records, Internal
In-built Battery  Li-Ion, 11.1 V, 4 Ah

Input to Battery Charger - 90 to 275 V AC, 50/60 Hz ± 10% ;100 to 300 V DC

Charger output - 13.5 V DC, 1000 mA Max.; Instrument consumption -15 VA

Communication Port USB
Environment 0 to 50°C, Upto 95% RH (Non condensing)
Dimensions 300 x 250 x 200 mm
Instrument Weight  5 Kg
Read 3799 times Last modified on Saturday, 04 July 2020 04:29
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