DigiTMR S2 EHV Circuit Breaker Analyzer

DigiTMR S2

EHV Circuit Breaker Analyzer

Part Number(s)
9005-UC [DigiTMR S2]
9005-OT [On-line Timing Option]
9005-BT [Bluetooth Option]
Download Links
DigiTMR S2 Datasheet (English)
Customer References
DigiTMR S2 User's Manual (English)

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.
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 +25C (+77F).