Centurion LD200 Series Quick Start Manual

The LD200 is a dual channel inductive loop detector. The use of microprocessor and surface mount
technology enables a large number of functions to be incorporated into a small package. The LD200 is
compatible with most single channel detectors on the market and is easy to set-up and install.
Typical applications in the parking and access control environments are safety loops, arming loops and
entry or exit loops as well as direction logic.
Standard features of the detector are:
RESET SWITCH
Pressing the reset switch enables the detector to be manually reset during commissioning and
and testing. This results in the detector re-tunning the sensing loop and becoming ready for
vehicle detection.
SWITCH SELECTABLE SENSITIVITY
The detect sensitivity is the minimum change in inductance required to produce a detect output.
(% L/L).
Eight sensitivity settings are available on the switches to allow flexibility in configuration.
1 High
2
3
4
SWITCH SELECTABLE FREQUENCY
The frequency of the loop is determined by the inductance of the loop and the frequency switch
setting. If the frequency switch is on, the frequency is reduced. It may be necessary to change the
frequency to prevent cross-talk between adjacent loops.
SELECTABLE EXTEND TIME
When switched on this feature extends the outputs for 2 seconds.
PULSE RELAY SELECTION
The detect relay may be configured for a pulse output, and to energise on detection of a vehicle or
when the vehicle leaves the loop.
SELECTABLE N/O OR N/C RELAY OUTPUT
Internal jumpers enable the output relay contacts to be configured for normally open or normally
closed contacts.
DIRECTION LOGIC
This feature enables the detector to give a pulse output on relay 1 for a vehicle travelling from loop
1 to loop 2 and a pulse output on relay 2 for a vehicle travelling from loop 2 to loop 1. To enable this
feature switches 2 and 4 must be on.
SELECTABLE PULSE TIME
This feature sets the length of time that the pulse will be energised for. 1 Second or 0.2 Second.
POWER INDICATOR
This LED indicator illuminates when power is present.
LD200 SERIES LD200 SERIES
VEHICLE LOOP DETECTOR VEHICLE LOOP DETECTOR
- 0.01%
- 0.02%
- 0.05%
- 0.1%
5
6
7
8 Low
- 0.2%
- 0.5%
- 1%
- 2%