Honeywell UDC3500 Product Manual page 310

Input Calibration
Step Operation
Return to Normal
4
Operation
294
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
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
3/07