203M User Manual Publication No. 980978 Rev. A
Introduction 1-6 Astronics Test Systems
Controls
Filter Switch Selects LOW, MED, and HIGH nominal
–3 dB frequency cutoffs for the Low Pass
Filter.
Cutoff Frequency KHz
LOW MED HIGH
3 10 30
CAL-OPER Switch
Connects the amplifier input to either the
internal calibrator signal or to the Accel
Input jack.
MV/g Output Switch Selects 10 or 100 mV/g output.
PC/g-mV/g Switch
mV/g accommodates accelerometers with
built-in electronics; while pC/g
accommodates standard accelerometers.
Sensitivity Switch Selects 1-11, or 10-110 mV/g or pC/g.
Sensitivity Dial
Adjusts the charge sensitivity from 1-11 for
each range.
UNITS Switch
Selects either g’s IPS or MILS as the meter
units.
FULL SCALE Switch
Selects 10, 100, or 1000 units as full scale
for the meter.
RMS-PEAK Switch
Scales the front panel DVM for either PEAK
or RMS units at the input.
ALARM SET Switch
Provides the means of monitoring the alarm
set point; also RESETS the alarm.
SE-DIFF Switch
Selects either single-ended or differential
configuration at the input.
READ-HOLD Switch
The READ position connects the level
stored in the Peak-Hold circuit to the meter,
and the ERASE position resets the Peak-
Hold circuit to zero.
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