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CHAPTER 3: ENGINEERING MODE
3.1 Using Engineering Mode
1. Press & Hold both UP and DOWN RESISTANCE keys at the same time for 3-5 second to enter Engineering Mode as shown in Figure A. The display
will show “P1 MAX TIME” as shown in Figure B.
2. To scroll through the list of options in Engineering Mode, use the UP and DOWN RESISTANCE keys.
3. Press the ENTER key to see the value of the function.
4. To change the value of the setting, use the UP and DOWN RESISTANCE keys.
5. To confirm and save the value of the setting, press the ENTER key.
6.
Press and hold the START key for 3-5 seconds to return to normal operation.
FIGURE A FIGURE B
KEY NAME
FUNCTION
UP
Select function or adjust value
DOWN
Select function or adjust value
ENTER
Enter the function item
START
Save value or quit mode
Hold “ START” key 3’s
Return to normal operation
Hold “ UP&DOWN” key 3’s Enter engineering mode
