S
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IN
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T
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E
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N
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G
Sensitivity Adjustment
WARNING: REMOVE ALL POWER BEFORE OPENING THE ENCLOSURE. IT IS YOUR RESPONSIBILITY TO
HAVE A QUALIFIED PERSON PERFORM ADJUSTMENTS AND MAKE SURE IT CONFORMS TO NEC AND
LOCAL CODES. DO NOT ADJUST SENSITIVITY WHILE THE MACHINE IS RUNNING. STAND CLEAR OF
THE MACHINE AT ALL TIMES WHEN IT IS OPERATING.
The 685AX8 Series covers a wide range of sensitivity and needs to be adjusted to the specific piece of machinery
on which it is installed. After the switch has been installed in a satisfactory location (see page 6) the sensitivity
adjustment will be increased or decreased so that the switch does not trip during start-up or under normal
operating conditions.
This is typically done as follows:
1) REPLACE ALL COVERS, LIDS, AND ELECTRICAL ENCLOSURES.
2) Press the reset push button (see
Figure 1
) to engage the magnetic latch. Be sure that the reset button
remains depressed. If it does not remain depressed, turn sensitivity adjustment screw (see
Figure 2
)
clockwise until it stops, turn it ¼ turn counterclockwise, and press the reset button again.
Figure 1
Figure 2
3) Start the machine.
4) If the instrument trips on start-up, allow the machine to stop. Turn the sensitivity adjustment 1/4 turn
clockwise. Depress the reset button and restart the machine. Repeat this process until the unit does not
trip on start-up.
5) If the instrument does NOT trip on start-up, stop the machine. Turn the sensitivity adjustment screw 1/4
turn counter-clockwise. Repeat the start-up/stop process until the instrument trips on start-up. Turn the
sensitivity adjustment screw 1/4 turn clockwise (less sensitive). Restart the machine to verify that the
instrument will not trip on start-up.
6) Verify that the unit will trip when abnormal shock/vibration exists.
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