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2-1 INTRODUCTION. This chapter contains a description of the operator controls and provides general
procedures on the use of the transducer controls and indicators.
2-2 CONTROLS AND INDICATORS. Operating control and indicators are shown in Figure 2-1 for all
models.
2-3 OPERATING PROCEDURES. (All models) Normal operation of the transducer requires no operator
input. The following paragraphs provide general instructions for the use of the ZERO and SPAN adjust
potentiometers used during testing and calibrating of the transducer.
2-4 ZERO AND SPAN ADJUST POTENTIOMETER OPERATION. (All models) ZERO adjustment is for
calibrating the 0% full-scale output of the transducer. The SPAN adjustment is for calibrating the 100% full-scale
output of the transducer. The ZERO and SPAN adjustments are screwdriver adjustments accessed through the pot
adjustment cover on the top of the transducer. The transducer is factory calibrated at the zero and full-scale range of
the specific model at ambient temperature and barometric pressure.
2-5 CALIBRATION CONNECTIONS (Gauge, Compound or Vacuum Models). Pressure connections for the
calibration consists of connecting the pressure-monitoring portion of an approved calibration monitor to the pressure
port connection (MS 16142) of the pressure transducer in accordance with the instructions for the calibration system
in use.
There are no internal electrical connections for calibration . Electrical power and current measurements must
be made externally in accordance with the instructions for the calibration system in use.
2-6 CALIBRATION CONNECTIONS. (Differential Models) Pressure connections for the calibration
consists of connecting the pressure-monitoring portion of an approved calibration monitor to the high-pressure port
connection (MS 16142) of the differential pressure transducer in accordance with the instructions for the calibration
system in use.
There are no internal electrical connections for calibration . Electrical power and current measurements must
be made externally in accordance with the instructions for the calibration system in use.
2-1
Chapter 2
OPERATING PROCEDURES
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