Table 8-2 Current Proportional Output Calibration Procedure - Honeywell UDC 3300 Product Manual

Procedure
Table 8-2
Step Description
1
Enter Calibration Mode
2 Calibrate 0 %
3 Calibrate 100 %
4 Exit the Calibration Mode
*When attempting to achieve 0 mA, always adjust the output to about 0.5 mA, and slowly decrease until the
output just goes to zero. Further decrementing will not change the output current (since the circuit cannot
produce negative current) but will affect the accuracy of the output by creating a dead zone where no
current flows.
4/00
The procedure for calibrating the Current Proportional Output is listed in
Table 8-2. Make sure LOCKOUT in the Tuning Set Up group is set to
NONE. See Section 3 – Configuration.
Current Proportional Output Calibration Procedure
Press
SET UP
FUNCTION
LOOP 1/2
or
FUNCTION
LOOP 1/2
or
FUNCTION
LOOP 1/2
LOWER
DISPLAY
or
SET UP
UDC 3300 Controller Product Manual
Action
until you see
Upper Display
CALIB
Lower Display
CURRENT
You will see:
Upper Display
a value between 1 and 2048
Lower Display
ZERO VAL
until the desired 0 % output is read on the milliammeter.
Use the values shown below depending on the action of
your valve.
0 mA For 0 to 20 mA Direct Action*
20 mA For 0 to 20 mA Reverse Action
4 mA For 4 to 20 mA Direct Action
20 mA For 4 to 20 mA Reverse Action
This stores the 0 % value and you will see:
Upper Display
a value between 1 and 2048
Lower Display
SPAN VAL
until the desired 100 % output is read on the milliammeter.
Use the values shown below depending on the action of
your valve.
20 mA For 0 to 20 mA Direct Action
0 mA For 0 to 20 mA Reverse Action*
20 mA For 4 to 20 mA Direct Action
4 mA For 4 to 20 mA Reverse Action
The controller will store the span value.
To exit the calibration mode.
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