Honeywell UDC2500, Product Manual

Page: 167 / 243

Output Calibration
4/07 UDC2500 Universal Digital Controller Product Manual 153
Procedure
The procedure for calibrating the Current Output is listed in Table 6-2. The numeric
codes are also listed. Make sure LOCK in the Tuning Set Up group is set to
NONE.
(See Subsection 3.4 – Tuning Set Up Group.)
Table 6-2 Current Output Calibration Procedure
(Numeric Code 30000)
Step Operation Press Result
1
Enter Calibration
Mode
Setup Setup
until you see
Upper Display = CAL (
- - - -
)
Lower Display = CURENT (30000)
2 Calibrate 0 %
Function Function Function
You will see:
Upper Display =
A Value
Lower Display = ZROVAL (30001)
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 %
Function Function Function
This stores the 0 % value and
you will see:
Upper Display =
A Value
Lower Display
= SPNVAL (30002)
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.
4
Function Function Function
The controller stores the span value. Exit the
Calibration Mode
Lower
Display
Lower
Display
Lower
Display
To exit the calibration mode.