ESCO Technologies ETS-LINDGREN SuiteSentry, Operation And Installation Manual

Page: 25 / 34

Page 25 of 34
SIDE VIEWS
PIR thumbscrew at top
FRONT VIEWS
Figure 15: SuiteSentry Single Screener top cap and PIR access/adjustment
6.2 Motion Detector Adjustment
The purpose of the Motion Detector is to control the mode or function of the detector.
Standby Mode:
In Standby Mode the detector is functioning ONLY as an ambient magnetic field
display. The detector will NOT display Green LED lights and will NOT register an audible alarm even
though it is detecting and displaying disturbances to the local ambient magnetic field through a series of
8 blue LED’s at the top cover assembly. See Figure 12.
Active Mode:
In Active Mode the detector is fully functioning and will display green lights on the
vertical column. The detector no longer displays ambient magnetic field as described in Standby Mode.
It is while in this Active Mode that the detector shows the location of the offending ferromagnetic object
if present in the immediate area. A person should be approximately 8 inches or less for this mode to be
used reliably. See Figures 13.a, b and c.

The Motion Detector is a Passive Infrared Sensor (PIR). It is an electronic device that
measures infrared (IR) light radiating from personnel moving in its’ field of view. Movement of
a person and not an object causes the SuiteSentry Single Screener to change from STANDBY
non-alarming mode to ACTIVE ready to alarm mode.

Access to the various controls is shown in Figure 14. THE TOP CAP WILL NEED TO BE UP

The audio alarm can be deactivated with Switch 2 in figure 14. The audio is usually left “ON”
since this audio provides immediate alarm feedback to the personnel turning in front of the
Sensor Array Column. Audio alarm volume can be adjusted by the ALARM control, V2.

The motion detector can be deactivated with Switch 1. This is useful for setting the system
sensitivity and finding sources of stray interference by viewing which sensor(s) are alarming
and then determining the cause; such as, a florescent light transformer in the ceiling very near
the detector.

With the motion detector activated, the motion detector sensitivity, V1, can be used to adjust
how far away from the Sensor Array Column that the Active mode is activated by the Infra-Red
sensor (PIR). The control is set at the factory to maximum sensitivity and can be reduced if
lower sensitivity is desired. The sensitivity should be set high enough to trigger the alarm
mode within 12” or less of the sensor array column.

To adjust PIR - Use thumb screw to adjust the distance at which the PIR will sense (Fig. 15).