718 And 718Ex Verification; Pressure Verification - Fluke 71X Series Calibration Manual

71X Series
Calibration Manual

718 and 718Ex Verification

This procedure is appropriate for the 718 and 718Ex. When the steps vary, the step will
be labeled (718 Only) or (718Ex Only).

Pressure Verification

To avoid a violent release of pressure or vacuum, always depressurize
the system slowly using the pressure/vacuum release control before
detaching any pressure line.
1. Carefully attach the pressure fitting of the deadweight tester to the pressure port of
2. Push the green  key to turn the Calibrator on.
3. The display should read 0.00 PSI with the deadweight tester opened up to ambient
4. Depending if the instrument being tested is a 718(Ex) 1G, 30G, 100G, or 300G, set
5. Ensure the pressure has stabilized at each input before verifying the display reading.
6. Carefully vent all pressure and disconnect the Calibrator from the deadweight tester.
When verifying vacuum pressure make sure the pressure/vacuum switch is
in the vacuum position. Forward (clockwise) is for pressure and backward
(counter-clockwise) is for vacuum.
Applied
0.0000 PSI
0.1000 PSI
0.2000 PSI
0.3000 PSI
0.4000 PSI
0.5000 PSI
0.6000 PSI
0.7000 PSI
0.8000 PSI
0.9000 PSI
1.0000 PSI
-0.2000 PSI
-0.4000 PSI
-0.6000 PSI
-0.8000 PSI
-1.0000 PSI
48
the Calibrator.
The use of TEFLON tape at the pressure fitting strengthens the seal.

air. If not, push the
up the deadweight tester for the sequence of PSI inputs from Table 64 to be injected
into the pressure port of the Calibrator.
Table 64. 718 and 718Ex Pressure Verification
<V3.9 V3.9
Lower Limit Upper Limit
-0.0010 PSI 0.0010 PSI
0.0990 PSI
0.1010 PSI
0.1990 PSI
0.2010 PSI
0.2990 PSI
0.3010 PSI
0.3990 PSI
0.4010 PSI
0.4990 PSI
0.5010 PSI
0.5990 PSI
0.6010 PSI
0.6990 PSI
0.7010 PSI
0.7990 PSI
0.8010 PSI
0.8990 PSI
0.9010 PSI
0.9990 PSI
1.0010 PSI
-0.2010 PSI
-0.1990 PSI
-0.4010 PSI
-0.3990 PSI
-0.6010 PSI
-0.5990 PSI
-0.8010 PSI
-0.7990 PSI
-1.0010 PSI
-0.9990 PSI
WWarning
Note
key until display does read 0.00 PSI.
Note
718 1G, 2 Range
V4 1 Yr
Lower Limit Upper Limit
-0.0010 PSI 0.0010 PSI
0.0990 PSI
0.1010 PSI
0.1990 PSI
0.2010 PSI
0.2990 PSI
0.3010 PSI
0.3990 PSI
0.4010 PSI
0.4990 PSI
0.5010 PSI
0.5990 PSI
0.6010 PSI
0.6990 PSI
0.7010 PSI
0.7990 PSI
0.8010 PSI
0.8990 PSI
0.9010 PSI
0.9990 PSI
1.0010 PSI
-0.2010 PSI
-0.1990 PSI
-0.4010 PSI
-0.3990 PSI
-0.6010 PSI
-0.5990 PSI
-0.8010 PSI
-0.7990 PSI
-1.0010 PSI
-0.9990 PSI
V4 1 Yr V4 6 Mo
Lower Limit
-0.0010 PSI
0.0990 PSI
0.1990 PSI
0.2990 PSI
0.3990 PSI
0.4990 PSI
0.5990 PSI
0.6990 PSI
0.7990 PSI
0.8990 PSI
0.9990 PSI
-0.2010 PSI
-0.4010 PSI
-0.6010 PSI
-0.8010 PSI
-1.0010 PSI
V4 6 Mo
Upper Limit
0.0010 PSI
0.1010 PSI
0.2010 PSI
0.3010 PSI
0.4010 PSI
0.5010 PSI
0.6010 PSI
0.7010 PSI
0.8010 PSI
0.9010 PSI
1.0010 PSI
-0.1990 PSI
-0.3990 PSI
-0.5990 PSI
-0.7990 PSI
-0.9990 PSI