Documenting Process Calibrator
Process Instrument Calibration
75
“As Left” Test Run
Proceed as follows to generate and record as left data for
the thermocouple temperature transmitter that was
adjusted.
1. Push the As Left softkey to record as left data.
2. Push the Auto Test softkey to start an automatic
sequence through all the test points, or step through
the tests manually.
3. When the tests are complete, read the error summary
table. See Figure 34.
gks48s.bmp
Figure 34. As Left Data Screen
Unsettled measure or source values are highlighted.
This means that there was an unsettled value
(g annunciator) when the measurement was taken.
4. If all the results are in specification, as they are here,
push the Done softkey. An entry in memory is made for
as left data.
Test Comments
The Product does tasks (custom procedures) that are made
with a host computer and DPCTrack2 application software.
See “Communication with a PC”. A task can show a list of
proposed comments as it operates . When the comment list
is shown, push and and then to select a
comment to be kept with the test results.
Calibrate a Delta-Pressure Flow Instrument
The procedure to calibrate a √ instrument is the same as for
other instruments, as given before, with these differences:
• Source square-root is automatically enabled after the
As Found calibration template is complete.
• Measure/Source displays are in engineering units.
• The measurement percentage is automatically
corrected for the transmitter’s square-root response,
and is used to calculate instrument errors.
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