Metek DREXELBROOK Universal IV Lite, Installation And Operating Instructions Manual

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Universal IV - Installation and Operating Instructions
38
Figure 3-15
Capacitance on Menu Screen
C. Connect the NPO capacitor selected from the last step
to the Sensing Element and Ground connections at
the transmitter (with coaxial cable from sensing element
disconnected).
D. Select Real Time View on the PC software Menu
Screen (F4 on your keyboard) See Fig. 3-16 . The display
should show the Capacitance as the value of the NPO
Capacitor (within the capacitors tolerance), and the
LEVEL should display close to the mid-range of the
Lower and Upper Level from the Level Calibration
field. The Loop Current and the Percentage will
also reflect the values that are generated by the NPO
Capacitor. Add to the scratch pad of the Menu Screen
the value of the NPO capacitor that you used. If desired,
this information can be printed out for file or record
purposes See Fig. 3-18. Mark or Tag this capacitor * to
correspond to this specific transmitter. Put the capacitor
in a safe location for use in subsequent testing and
validation.
E. By placing the same exact capacitor * on the RF
transmitter's Sensing Element and Ground terminals
and observing the signal output generated by this
capacitor, it can be verified that the transmitter is
operating properly and that the calibration information
is the same as during the initial set up.
Figure 3-16
Real Time View Pop-up from Menu
Screen
* Every capacitor manufactured will generate a slightly
different capacitance value within its specified tolerance.
By marking the capacitor and using only this capacitor
for testing and validating the AMETEK Drexelbrook
Universal IV Transmitter, the system will produce
repeatable results within transmitter specifications.