Fluke 718Ex 30G User Manual page 13

Pressure Calibrator
Safety Information
Remove test leads from the Calibrator before opening the battery door.
This equipment is specified for use in measurement category I (CAT I) pollution degree 2 environments
and should not be used in CAT II, CAT III, or CAT IV environments. Voltage transients should not
exceed 300 volts for the CAT I applications where this product is used. Measurement transients are
defined in IEC1010-1 as 2 µs rise time with a 50 s duration at 50 % of the maximum amplitude height.
Measurement Category I (CAT I) is defined for measurements performed on circuits not directly
connected to the mains.
Turn off circuit power before connecting the Calibrator mA and COM terminals in the circuit. Place
Calibrator in series with the circuit.
When servicing the Calibrator, use only specified replacement parts. Do not open the Calibrator case.
Opening the case invalidates the Calibrator's Ex Approval.
Do not allow water inside the case.
Do not use in a damp or wet environment.
When using the Calibrator's internal pressure sensor, do not connect a pressure module at the
Calibrator to avoid misleading readings. If both a pressure module and the internal pressure sensor are
connected, the Calibrator displays ONLY the pressure module measurement. To avoid misleading
readings, disconnect the pressure module connector at the Calibrator.
To avoid a violent release of pressure in a pressurized system, shut off the valve and slowly bleed off
the pressure before attaching or detaching the internal pressure sensor or pressure module fitting to
the pressure line.
To avoid overpressure damage, do not apply pressure to the internal pressure sensor input that
exceeds the following:
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