Vanguard DigiTMR - Manual (Page 14)

DIGITMR USER’S MANUAL REV 3
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Table 2. Functional Descriptions of DigiTMR Controls and Indicators
Item
Number
Panel Markings Functional Description
1 RS-232C 9-pin serial computer interface
2 CONTACT INPUT 16-pin female connector for the 3 contact channels.
3
300V MAX
V1 and V2
3-pin connectors. Each input is a voltage detector for the timing voltages of the
trip or close coil switching during the active period. Voltage detection levels
range from 30 to 300 Vdc or peak.
4
300V MAX
TRIGGER
3-pin connector triggers timing functions. Voltage levels ranging from 30 to 300
Vac, dc or peak.
5 CT AC current sensor input channel.
6
TRAVEL
TRANSDUCER
16-pin male connector. Travel encoder input used for contact motion data.
7
100-120Vac, 2A,
50-60Hz
Fuse: 250Vac, 3A
Fast-Blow
3-wire power plug. 3 Ampere, AC fuses. The ON/OFF switch is a 2-pole rocker.
8 GROUND Safety ground terminal. 5/16-18 thread stud with wing nut.
9 INITIATE
4-pin connector used for the switching circuit for operating the circuit breaker
under test.
10
CLOSE, OPEN
250V, 5A
SLOW-BLOW
Close circuit fuse: 5 Ampere, 250V, Slow-Blow.
Open circuit fuse: 5 Ampere, 250V, Slow-Blow.
11
“PUSH” TO
ARM
Spring-loaded, pushbutton switch. Press and hold to complete the Trip or Close
circuits for breaker tests.
12 None
Thermal printer. Microprocessor controlled printer that uses specially treated,
4.5-inch wide thermal paper.
13 None
Membrane keypad, 10 alpha-numeric keys and 6 function keys (START,
STOP, CLEAR, ENTER, and CONTRAST/PAPER positioning UP and DOWN)
14 None
Back-lit LCD Screen (20 characters by 4 lines); viewable in bright sunlight and
low-light levels