Fluke 718Ex 30G User Manual page 9

Never open the Calibrator case. Opening
•
the case invalidates the Calibrator's Ex
Approval.
Make sure the battery door is closed
•
before using the Calibrator.
Replace the battery as soon as the 
•
(low battery) symbol appears to avoid
false readings that can lead to electric
shock. Remove the Calibrator from the
Ex-hazardous area before opening the
battery door.
Remove test leads from the Calibrator
•
before opening the battery door.
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 use in a damp or wet environment.
•
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:
Model 718Ex 30G: 30.000 psi,
o
206.85 kPa, or 2.0685 bar. OL appears
at 33 psi.
o Model 718Ex 100G: 100.00 psi,
689.5 kPa, or 6.895 bar. OL appears at
120 psi.
o Model 718EX 300G: 300.00 psi,
2068 kPa, or 20.68 bar. OL appears at
360 psi.
When measuring the pressure of
•
potentially hazardous gases, care must
be taken to minimize the possibility of
leakage:
Confirm that all pressure
o
connections are properly sealed.
Pressure Calibrator
Safety Information
5