341
A
343A
Sets the meter
mechanical zero. Adjust only after
instrument has
been turned off for at least 3
minutes.
Selects one
of three full-scale voltage
ranges:
10,
100
or 1000 volts
dc.
REF. NO.
NAME
1
Mechanical zero adjust
2
RANGE
switch
3
Power ON
indicator
4 FUNCTION switch
5
LIMIT ON
indicator
Illuminates when instrument is fully operable.
Controls instrument input power
and output monitoring functions.
In
STANDBY/RESET position, all circuitry
except
the
high voltage
power supply is
energized. In
power
ON position, the instrument
is
fully operable. When instrument is ON, output
voltage
is
moni-
tored in METER
VOLTAGE position and output current in
METER
Illuminates when the
controlled current limiter is activated.
When
lit,
output
current is
limited to a preset value.
Figure
2-1.
CONTROLS,
TERMINALS
AND
INDICATORS
(Sheet 1
of
2)
2-2
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