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.