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![](https://files.manualsfile.com/85783292-718ex-30/bgb.png)
Pressure Calibrator
Safety Information
5
• 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 μs 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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