Honeywell UDC3500 Product Manual page 300

Output Calibration
Step Operation
4 Return to Normal
Operation
286
Press
to change the range selection in the upper display back to the
or
proper selection. You will see:
Upper Display = Original range selection
Lower Display = CO RANGE
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
10/05