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11.8.2 I-O Calibration
This controller has a field calibration option in the System Menu. The calibration option can be used
to achieve better accuracy than factory specifications and to compensate for calibration offsets that
could occur with additional connectors and environmental conditions. Calibration is stored in non-
volatile memory and is retained even if the backup battery fails or is removed.
Calibration of analog can only be performed when the controller is in idle mode. Analog output
values will change so precautions show be taken such that changes in these outputs will not affect
the system or the safety of those around the equipment. The calibration process applies changes to
the analog inputs, so care must be taken that the calibration process will not adversely affect the
operation of the attached equipment. Calibration should be performed by trained personnel with
equipment that is designed for precise analog calibration. Ideally this equipment is also calibrated to
a traceable standard.
The
“Calibrate Analog” item is a sub
-menu that, when selected, allows entering the field calibration
for analog inputs and outputs.
Figure 11.6
–
Analog Calibration Screen on
i
³C Lite
The “Calibrate:” options allows selecting the individual input and
output channels. Start by pressing
select and using the up and down arrows to select the appropriate channel to calibrate. Next, the
mode for the analog (if applicable) is selected using the “Mode:” option.
The “
Save
” button is used to save the calibratio
n.
The
“
Accept
” button is used to accept calibration values in the process.
The “
Default
” button is used to restore calibration
to factory defaults.
The “
Close
” button is used to exit the calibration screen
.
Summary of Contents for i3C Lite
Page 1: ......
Page 8: ...Page 8 ...
Page 65: ...Page 65 Figure 9 3 Screen Calibration ...
Page 78: ...Page 78 Figure 11 2 Relay and Digital Output ...
Page 82: ...Page 82 Figure 11 5 Digital Input ...
Page 86: ...Page 86 11 9 RTD Wiring on J3 Connector ...
Page 110: ...Page 110 Figure 13 8 Alarm Configuration in i Config ...
Page 167: ...Page 167 ...