User Manual Druck DPI620 Genii
A second input channel can also be used, to calculate the
transfer characterstic between three points in the signal
path and may be calibrated at the same time, as in the
example that follows.
• When calibrating a process transmitter that is
HART® enabled the second input channel could
be the HART® channel. The HART® channel reads
the Primary Variable (PV) value from the sensor in
the process transmitter this would allow the
pressure sensor to be calibrated at the same time
as the current loop output.
Any active channel that is not defined as Reference is Input
by default.
There must be one Reference channel and at least one Input
channel defined for the Analysis function set-up to be
correct.
At each value the Analysis function calculates the difference
of each Input channel to the ideal transfer characteristic and
compares this to a tolerance limit.
• The deviation is shown in %Span or %Rdg
• The tolerance test result is shown a Pass
or Fail icon.
06 June 2013 K0541 issue 1 Page 84 of 175
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