Despatch MIC1422 Controller - Manual (Page 33)

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If a break is detected in the sensor circuit, the upper display will show:
4.6 Manual Control (Percent Output)
Manual Control is not applicable if the Auto/Manual selection in Enable Mode
is disabled.
If enabled, the Manual Mode may be entered by pressing the AUTO/MANUAL key.
The Manual Mode status LED will begin to flash indicating that the Manual Mode is in
use. Shifting from the Control to the Manual Mode is bumpless. The proportional
output(s) will stay at the last value(s) calculated by the control algorithm. The upper
display will show the current process value. The lower display will show the current
value output power in the form PXXX where X is equal to the percentage of output
power. The value of output power may be adjusted using the UP and DOWN keys, as
required.
The output power value can be varied in the range 0% of 100% for instruments using
Output 1 only, and -100% to +100 % for instruments with both Output 1 and Output 2.
To exit from the Manual Mode, press the Auto/Manual key. Shifting to the Control
Mode is bumpless.