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3
I
O
NSTALLATION AND
PERATION
DESCRIPTION
ON/OFF Switch — controls power flow from the battery to all
circuits.
SHUNT CAL Switch — places a known resistor (59 K Ohm)
across the transducer, so that a known output (half scale, 1000
count approximately) is seen, and is used to self-calibrate the
instrument.
Note: a count of 1000 is applicable only to a 350 Ohm bridge.
PEAK/TRACK Switch — selects the mode of operation of the
instrument. In the PEAK mode, the instrument will retain the
reading of the most positive value detected during the operation. In
the TRACK mode, the instrument will continuously follow the
variations of the input signal. To reset the peak (when in peak
mode), merely switch the instrument to the track mode.
ZERO Potentiometer — is used to obtain a zero indication,
thus compensating for drifts and electrical offsets that may exist in
the transducer or the instrument.
SPAN Potentiometer - adjusts the fine gain of the amplifier. It
is used to assure proper gain-level setting per given transducer.
LCD Display — appears through a window on the front
panel. The LO-BATT indication appears at the upper left side of the
display and indicates when the 9 Volt battery has dropped below
5.2 Volts.
TERMINALS — Above the front panel are four connectors used
to power and read from the transducer. The front-panel label
describes the function of each terminal.
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