WRM-10P/WRM-40 OPERATING INSTRUCTIONS
Table 3.0 Functional Descriptions of WRM-40 Controls and Indicators
Fig. 2
Index
Panel Markings
Functional Descriptions
1
V1
Voltage sensing input channel #1. Female test
connector jacks for connecting voltage-sensing
test leads.
2
I
Current output. Female test connector jacks for
connecting current test leads.
3 (Not titled; LCD) Liquid-Crystal Display, 4-line by 20 character.
Back lighted and readable in sunlight; Displays
menus, user selections, status readouts, and test
results.
4
120/240 2A, 50-60 Hz
Fuse: 250 Vac, 10A Slow Blow
Input power connector with third-wire safety
ground, ON/OFF rocker toggle switch with
built-in fuse protection.
5
GROUND
Stud, 5/16-18 thread, with hand-turned wing
nut; Safety Ground; This must be connected to
station ground before connecting ERM-10P/40
test leads to transformer.
6 (Not titled; thermal printer) Built in thermal printer; prints test results in the
field on 2.5-inch-wide paper. NOTE: For best
high-contrast print quality, it is recommended
that only VIC thermal paper be used.
7
RS-232C
Computer interface port; 9-pin connector;
female DB type. Data rate is set to 19,200 baud,
1 start bit, 2 stop bits, 8 data bits, and no parity
bit.
PIN SIGNAL
2 Rx
3 Tx
5 Signal Gnd
8
DISCHARGE
Red LED indicator light. When lighted, this
indicator warns operators that the WRM-40 is
discharging the energy stored in transformer).
Do not disconnect test leads when this light is
on. Failure to heed this warning can result in
shock and/or fatal injury to personnel
9 (Not titled; 16-key pad) Pushbutton operating controls; 10 key pad, plus
START, STOP, ENTER, CLEAR, two paper-
drive buttons; number keys 2 thru 9 have dual
functions as letter entries (a la telephone dialer
key pad.
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