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Trim
P838 Out Low Trim
If the remote device you are connected to is not calibrated, and not showing
the correct
low value
(reading), then you can trim it using this parameter. You
can either type in the offset directly, or use the arrow keys to move the output
up and down until you get the expected result (reading) on the remote device
that is connected.
P839 Out High Trim
If the remote device you are connected to is not calibrated, and not showing
the correct
high value
(reading), then you can trim it using this parameter.
You can either type in the offset directly, or use the arrow keys to move the
output up and down until you get the expected result (reading) on the remote
device that is connected.
Failsafe
P840 Out Fail Mode
This parameter determines what happens to the output in the event of the unit
going into fail-safe mode. The
default
is to do the same as the
system fail-
safe
(
P808
), but this can be overridden to force the output to an independent
fail-safe mode as follows:
Option
Description
0 = Default
output will fail as per
P808
.
1 = Hold
output will retain its last known value.
2 = Low
output will fail to its
low
condition.
3 = High
output will fail to its
high
condition (20mA
maximum).
4 = Very Low
output will fail to its
lowest
or
fault
condition:
2mA
when Range is
4 to 20mA
.
0mA
when Range is
0 to 20mA
.
5 = Very High
output will fail to its
highest
or
fault
condition of greater than 20mA (22mA
maximum).
Compensation Parameters
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