
Instruction 55-9002 15
Gas Pup
Figure 12. Selecting the Pressure Operating
Mode During Startup
Operation
Important! Ensure that the instrument’s pressure port is open to
the atmosphere during startup, otherwise incorrect pressure
readings may result.
Before making a pressure measurement, tubing must be connected
between the gas source and the instrument’s pressure port. Depending on
the application, use the tubing and hardware supplied in either the
optional Pressure Hose Kit (P/N 55-0038) or Service Line Pressure Test-
ing Kit (P/N 55-0072) to make this connection. Refer to the Accessories
section of this manual for a description of these options.
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