Enforcer® S 5368 Mini Shock Vibration Detector
3
Adjusting the Sensitivity
Contact pressure below 5 grams is not recommended , as erratic operation may result and cause false
alarms. Contact pressure above 25 grams is not recommended because (a) it may permanently dam-
age the vibration blade; (b) the detector may not be sensitive enough to detect vibration. However, this
depends on the location where the detector is installed. If installed on a ceiling,the pressure must be
increased because the internal weightfaces downwards,thus reducing the actual pressure that is applied .
As the detector can be used on surfaces of different materials which transfer different amounts of pres-
sure from the same vibration/shock, it may be necessary to adjust the sensitivity. Turning the adjustment
screw in a clockwise direction makes the contact less sensitive; in a counterclockwise direction makes
the contact more sensitive . Proper adjustment is necessary to avoid false alarms or non-activation of the
alarm.
To adjust the pressure if a Gram Meter is not available, please do the following:
1. Determine the initial contact point of the vibration detector. This is done by rotating the adjustment
screw in a clockwise direction until the contact points just touch . At this point the pressure is usually
approx. 1 gram . (An ohm meter placed across the terminals will show exactly when initial contact is
made.)
2. After contact, turn the adjustment screw past the contact point in the following increments to obtain
the sensitivity you require:
a) 45 degrees to obtain approximately 6 grams,
b) 90 degrees to obtain approximately 11 grams,
c) 135 degrees to obtain approximately 16 grams, etc.
Please refer to figure 1 shown below.
