Honeywell UDC3500 Product Manual page 288

Input Calibration
Step Operation
4 Return to Normal
Operation
274
Press
until you change the input selection in the upper display back to the
or
proper selection. You will see:
Upper Display = Original Input Selection that matches your
type of sensor.
Lower Display = INn TYPE
to return to Normal operating mode.
Lower Lower Lower
Display Display Display
The factory calibration will be restored. If the problem is not
corrected, contact the Honeywell Technical Assistance Center at 1-
800-423-9883 USA and Canada
UDC3500 Universal Digital Controller Product Manual
Result
n = 1 to 5
10/05