PD130 Enhanced - User Instructions
Page 4 of 12
4.3.
Detector Sensitivity
Sensitivity of the detection system is dependent on factors such as loop size, number of turns in the loop, feeder length
and the presence of metal reinforcing beneath the loop.
The nature of the application determines the required sensitivity that may be adjusted by means of the sensitivity
switches on the front of the enclosure.
Sensitivity levels of the PD130 have been carefully optimised for parking and vehicle access control applications. The
detection of small unwanted objects such as bicycles and trolleys can be eliminated by selecting lower sensitivity levels
whilst high-bed vehicles and vehicle/trailer combinations will not loose detection by using automatic sensitivity boost
(ASB) option.
ASB operates as follows. When ASB is disabled the undetect level is dependent on the sensitivity setting of the
detector. Hence as the detector is made less sensitive, the undetect level will reduce accordingly. When the ASB is
enabled the undetect level will always be the same irrespective of the sensitivity setting and will be equivalent to the
undetect level when the sensitivity is on maximum setting.
4.4.
Hardware configuration
The PD130 Enhanced Vehicle single channel parking detector is designed to be shelf or DIN rail mounted, with the
controls and visual indicators at the front, and wiring at the rear of the enclosure.
The power, loop and relay outputs are all connected to
the single 11-pin plug, which is mounted at the rear of
the enclosure.
Figure 4.1 PD130 Faceplate layout
5.
Switch Settings
5.1.1. Frequency Switch
The frequency switches are the lower two switches, switches No. 1 and 2. There are four frequency selections:
SW2
SW1
Off
Off
- High
On
Off
- Medium-High
Off
On
- Medium-Low
On
On
- Low
