302UM0017 Rev 01
PD230 Enhanced Detector User Manual
Page 11 of 37
The sensitivity of the detector allows the detector to be selective as to the change of
inductance necessary to produce an output. There are four sensitivity selections and
are set as follows: -
Channel1
Channel 2
S6
S5
S4
S3
Off
Off
Off
Off
High
On
Off
On
Off
Medium-High
Off
On
Off
On
Medium-Low
On
On
On
On
Low
3.2.3 Automatic Sensitivity Boost
Automatic sensitivity boost is a mode which alters the undetect level of the detector. This mode is
selected by switch No. 7 on the front of the enclosure and is set as follows: -
S7
Off
Disabled
On
Enabled
Automatic sensitivity boost causes the sensitivity to be boosted to a maximum on detection of the
vehicle, and maintained at this level during the presence of the entire vehicle over the loop. When
the vehicle departs the loop and detection is lost the sensitivity reverts to the pre-selected level.
3.2.4 Presence Time
The presence time may be set to permanent presence or to limited presence. In permanent presence
mode the detector will continuously compensate for all environmental changes whilst there is a
vehicle present over the loop. In limited presence mode there will be a finite time that the detector will
remain in detect. This time is dependent on the change of inductance that the vehicle caused. The
presence mode is set with switch No. 8 and is set as follows: -
S8
Off
Limited Presence
On
Permanent Presence
3.2.5 Pulse / Presence
The channel’s relay may be set to either Pulse Mode or Presence Mode with switches No. 9 & No.
10 as shown in the table below: -
Channel1
Channel 2
S10
S9
Off
Off
Presence
On
On
Pulse
3.2.6 Reset Switch
The detector automatically tunes to the inductive loops connected to it when power is applied,
whether on initial installation or after any break in the power supply. Should it be necessary to retune
the detector, as may be required after the changing of any switch selections or after moving the
detector from one installation to another, momentary operation of the RESET switch will initiate the
automatic tuning cycle.
Summary of Contents for PD230 Enhanced Vehicle Detector
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