Output Calibration
3/07
UDC3500 Universal Digital Controller Product Manual
297
Procedure
The procedure for calibrating the First Current Output is listed in Table 6-2. Make sure
that LOCK in the Tuning Set Up group is set to
NONE. (See Subsection 3.4 – Loop 1
Tuning Set
Up Group
.)
Table 6-2 First Current Output Calibration Procedure
Step
Operation
Press
Result
1
Enter Calibration
Mode
Setup
until you see
Upper Display
=
CALIB
Lower Display
=
CURRENT
2
Calibrate 0 %
Func
Loop 1/2
You will see:
Upper Display
=
A Value
Lower Display
=
ZERO VAL
or
Until the desired 0 % output is read on the milliammeter,
use the values shown below depending on the action of
your controller. Normally, this will be the setting that
produces 4 mA.
3
Calibrate 100 %
Func
Loop 1/2
This stores the 0 % value and
you will see:
Upper Display
=
A Value
Lower Display
=
SPAN VAL
or
Until the desired 100 % output is read on the milliammeter,
use the values shown below depending on the action of
your controller. Normally, this will be the setting that
produces 20 mA.
Func
Loop 1/2
The controller stores the span value.
4
Exit the
Calibration Mode
Lower
Display
To exit the calibration mode.
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