Test and Measuring Instruments    
 
Breaker Testing Timer
Breaker Testing Timer These timers are microprocessor based digital timers and are very useful to measure closed, trip and trip-free timings of breakers.

FEATURES :

      × Microprocessor based technology.
      × Very compact and lightweight.
      × Very accurate measurements.
      × Economical.

TECHNICAL SPECIFICATIONS :

      × Range : Up to 999 millisecond. 
      × Display : LCD type. 
      × Accuracy : 0.5%. 
      × Commands : Close & trip for breakers. 
      × Trip free : C O - C timing of breakers. 
      × Reset : Resets the counter to zero. 
      × Input : a) Potential free contacts across R-Y-B and common. 
                   b) +ve and close or +ve and trip can withstand for 220V AC/DC and 6 Amp. 
      × Supply : 230V AC, single phase, 50Hz. 
      × Enclosure : The instrument is housed in plastic molded cabinet.

SPECIAL NOTES :
      × The timer will not start if all three contacts are not in same condition. 
      × The timer will not start for trip free mode if all poles are not open. Display will state the condition of each pole. 
      × You can check the bounces when close command is issued. Once all the three phases closed change bounce
         switch to bounce position. The timer will scroll for R, Y, and B phase with indicating No. of bounces and close
         duration for each bounce. Duration is indication by a, b, c, and so on for 6 bounces. Each phase scrolled for
         approximately 6 seconds 
      × If timer does not stop it will indicate that time has exceeded 10 seconds and it will be displayed according to phase. 

 

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