DigiTMR S2

EHV Circuit Breaker Analyzer

9005-UC [DigiTMR S2]
9005-OT [On-line Timing Option]
9005-BT [Bluetooth Option]

The Vanguard DIGITMR S2 is an inexpensive, easy to use digital circuit breaker analyzer. The DIGITMR S2 can be operated stand-alone or can be computer-controlled. It can fully analyze a circuit-breaker’s performance by testing the contact time, stroke, velocity, over-travel, and contact wipe. Contact and motion analysis can be performed for all breaker contact operations (Open, Close, Open – Close, Close – Open, and Open – Close – Open). Timing results are recorded and displayed on the 240 x 128 pixels back-lit LCD screen and can also be printed on the built-in 4.5" wide thermal printer.

  • Stand-alone, microcomputer-driven EHV Circuit Breaker Analyzer
  • Analyzes contact time, stroke, velocity, over-travel, and contact wipe
  • USB PC interface
  • USB Flash drive interface
  • Can store up to 200 test records and 100 test plans
  • Built-in thermal printer

DigiTMR S2



DigiTMR S2

Technical Specifications

 TYPE portable digital circuit breaker analyzer
 PHYSICAL SPECIFICATIONS 18.5”W x 14”H x 7”D (47.0 cm x 35.7 cm x 17.6 cm);
Weight: 20 lbs (9.1 kg)
 INPUT POWER 3 Amps, 100 – 240 Vac, 50/60 Hz
 DRY-CONTACT INPUTS 3 dry-contact channels; each channel detects main contact and insertion resistor contact
 TIMING WINDOWS 1-second, 10-seconds, or 20-seconds
 TIMING RESOLUTIONS ±50 micro-seconds @ 1-second duration, ±500 micro-seconds @ 10-second duration, ±1.00 milli-second @ 20-second duration
 TIMING ACCURACY 0.05% of reading ±0.1 ms @ 1-second duration
CONTACT DETECTION RANGE Closed: less than 20 ohms; Open: greater than 5,000 ohm
 TRIGGER INPUT VOLTAGE Open/Close: 30 – 300V, DC or peak AC
 VOLTAGE SENSING INPUT RANGE V1: analog input; 0 – 255V, DC or peak AC; Sensitivity: ±1V
V2: voltage presence/absence detector input; 30 – 300V, DC or peak AC
 BREAKER OPERATIONS Initiate Open, Close, Open – Close, Close – Open, Open – Close – Open
 INITIATE CURRENT READING RANGE One, non-contact, Hall-effect sensor, 0 – 20 amp range, dc to 5Khz
 TRAVEL TRANSDUCER INPUT 1 digital travel transducer channel; Linear range: 0.0 – 60.0 in (±0.005 in.); Rotary range: 0 – 360 degrees (±0.006 degrees)
 CONTACT TRAVEL POINT DIFFERENCE Measures “slow-close” contact-point distances; results can be printed
CT CURRENT SENSOR One, non-contact, 0 – 100A
 DISPLAY Back-lit LCD screen (240 x 128 pixels); viewable in bright sunlight and low light levels
PRINTER Built-in 4.5-inch wide thermal printer can print both graphic contact travel waveforms and tabulated test results
INTERNAL TEST RECORD STORAGE Stores up to 200 test records and 100 test plans
 COMPUTER INTERFACES One USB port, optional Bluetooth interface
 PC SOFTWARE Windows®-based Vanguard Circuit Breaker Analysis (VCBA S2) software is included with purchase price. Software updates available at no additional charge.
 SAFETY Designed to meet UL/IEC 61010 and CAN/CSA C22.2 No. 1010.1-92 standards
 ENVIRONMENT Operating: -10°C to 50° C (15°F to +122° F); Storage: -30° C to 70° C (-22°F to +158° F)
 OPTIONS Transportation case (available for the DigiTMR S2 and the travel transducers)
 WARRANTY One year on parts and labor
Specifications are valid at nominal voltage and ambient temperature of +25˚C (+77˚F).



Field Pictures

DigiTMR Training at WPI Power Solutions, South Africa