Introduction:

The PD-232 is a dual channel microprocessor based detector designed specifically for parking and vehicle access control applications.The primary function of the detector is to detect vehicle presence by means of an inductance change caused by the vehicle passing over a wire loop buried under the road surface.The various modes are selected by changing the position of switches on the front of the unit. The detector oscillator is multiplexed to eliminate any possibility of crosstalk between the loops connected to the detector. The switches allow for different loop frequency settings, sensitivity settings and modesettings.The unit has a number of initial selectable options for configuration of the relayoutputs.The PD-232 provides visual outputs ( LED ) on the front of the enclosure and relay change-over contacts at the 11 pin connector at the rear of the enclosure. The power LED indicates that the unit has been powered. The channel status LED’s below indicate that a vehicle is present over the loop and when there is a fault on the loop. The Presence relays are normally fail-secure and will close on a vehicle detect or loop failure but not if there is a power failure.

Technical Data:

Product Parameter	Parameter Description
JINYINGModel	PD-232
Product Name	Double Vehicle Loop Detector
Tuning	Fully automatic
Self-tuning range	50 to 1000μH
Sensitivity	Four step switch selectable
Frequency	Four step switch selectable Frequency dependent on loop size
Modes	Output relays operate in the Presence ( fail-secure ), Pulse or Direction logic modes
Presence Time	Switch selectable Limited presence Permanent presence
Pulse Output Duration	500 millisecond options
Response Times	20 milliseconds
Visual Indication	1 x Power LED - Red 2 x Channel Status LED - Green
Relay Outputs	2 x Relays rated - 5A @ 230 VAC
Reset	Reset by push button on front of enclosure
Power requirements	12 - 24V AC/DC ± 15% ( PD-230 ) 120V AC ± 15% ( 50 to 60Hz ) ( PD-231 ) 230V AC ± 15% ( 50 to 60Hz ) ( PD-232 )
Operating Temperature	-40°C to +85°C
Mounting Position	Shelf or DIN rail mounting

?