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
Enter Calibration
1
Mode
2
Calibrate 0 %
Calibrate 100 %
3
4
Exit the
Calibration Mode
3/07
Press
Setup
Upper Display = CALIB
until you see
Lower Display = CURRENT
Func
You will see:
Loop 1/2
Upper Display =
Lower Display = ZERO VAL
Until the desired 0 % output is read on the milliammeter,
or
use the values shown below depending on the action of
your controller. Normally, this will be the setting that
produces 4 mA.
This stores the 0 % value and
Func
Loop 1/2
you will see:
Upper Display =
Lower Display = SPAN VAL
Until the desired 100 % output is read on the milliammeter,
or
use the values shown below depending on the action of
your controller. Normally, this will be the setting that
produces 20 mA.
Func
The controller stores the span value.
Loop 1/2
Lower
To exit the calibration mode.
Display
UDC3500 Universal Digital Controller Product Manual
Result
A Value
A Value
Output Calibration
297