3-Series Single Channel Vehicle Detector

Name: 3-Series Single Channel Vehicle Detector
Brand: Nortech Control Systems Ltd
SKU: PD130/PD131/PD132/PD134/PD139
Availability: InStock

PD130/PD131/PD132/PD134/PD139

'Reliability and Durability Combined'

Identifies the presence of vehicles by means of an inductive loop buried under the road. The range includes PD130, PD132, PD134, PD139, PD232, PD234 products

Request Quote Download Datasheet

Product features & benefits

These “single chip” microprocessor-based units benefit from a detect filter and frequency indicator and are suitable for parking control and motorised door or gate applications all detectors are CE tested and approved.

Single channel loop detectors are available in both boxed and PCB format.

A compact detector diagnostic unit is available for extracting data from new and existing sites.

Benefits

Compact size
Diagnostic capabilities (when used with a DU100)
Selectable permanent presence (to eliminate premature barrier / gate closure)
Loop isolation protection
Loop frequency indication (to eliminate interference with adjacent loops)
Automatic sensitivity boost (ASB) – for reliable detection of high-bed vehicles (e.g. lorries)
Detect filter – for screening out unwanted inputs
Powerfail memory (optional) – to retain presence when power is restored
The range includes the following products: PD130, PD132, PD134, PD139, PD232, PD234

Specifications

Self tuning range	20-1500μH
Sensitivity	4 step adjustable High: 0.02% ΔL/L; Medium High: 0.05% ΔL/L; Medium Low: 0.1% ΔL/L; Low: 0.5% ΔL/L
Frequency	4 step adjustable, 12-80kHz (Frequency determined by loop geometry)
PD130 Output Relays	Presence output relay - Change-over contacts (fail-safe) rated at 5A @ 230V AC Pulse output relay - Change-over contacts (non-fail-safe) rated at 5A @ 230V AC
PD139 Output Relay	Presence output relay - Change-over contacts (fail-safe) rated at 1A @ 230V AC Pulse output relay - Change-over contacts (non-fail-safe) rated at 1A @ 230V AC
PD130 Pulse output duration	Approx. 150ms, factory option 250ms
PD139 Pulse output duration	Approx. 150ms
Presence time	1 hour for 3% ΔL/L, permanent presence option
Protection	Loop isolation transformer, zener diode clamping on loop inputs and gas discharge tube protection
PD130 Power requirements	120V AC +/- 15% 48-60Hz (PD131) 230V AC +/- 15% 48-60Hz (PD132) 12-24V AC/DC +/- 15% (PD134)
Current requirement	1.5VA max @ 230V
PD139 Power requirements	24V AC/DC +/- 15%
Current requirement	1.1VA max @ 24V DC
Operating temp range	-40oC to +80oC (circuit sealed against condensation)
Material	PD130: High heat ABS blend
Dimensions (mm)	PD130: 76 x 40 x 78; PD139: 105 x 68
Mounting	PD130: Shelf or DIN-rail socket PD139: Panel or plug-in
Connector	PD130: Single rear mount 11-pin submagnal (86CP11); PD139: Molex 10-pin female
Option	Flying leads

Reliable Vehicle Detection for Gate and Barrier Control Applications

The 3-Series Single Channel Vehicle Detector delivers dependable performance for parking facilities, commercial entrances, and industrial sites where precise vehicle sensing is essential. Whether installed at warehouse loading docks, residential gate systems, retail parking barriers, or high-speed industrial doors, this microprocessor-based detector ensures consistent operation across demanding environments with temperatures ranging from -40°C to +80°C.

Site managers at corporate campuses and logistics centres rely on these detectors for their automatic sensitivity boost feature, which maintains accurate detection of both standard vehicles and high-bed lorries. The selectable permanent presence function prevents premature barrier closure—critical for sites with frequent vehicle throughput. Available in boxed (PD130) and PCB (PD139) formats, installation teams can choose the configuration that best suits their cabinet requirements, while the optional DU100 diagnostic unit enables performance verification without disrupting operations.

Frequently asked questions

What voltage options are available for the 3-Series Single Channel detector?

The boxed PD130 series offers three voltage variants: PD131 operates on 120V AC, PD132 on 230V AC, and PD134 on 12-24V AC/DC. The PCB-based PD139 operates on 24V AC/DC, making it suitable for integration into existing barrier controller power supplies.

How does the Automatic Sensitivity Boost (ASB) function work?

ASB automatically increases detection sensitivity when a vehicle with high ground clearance (such as lorries or SUVs) enters the loop zone. This ensures reliable detection of vehicles that might otherwise fall below the standard sensitivity threshold, preventing false undetect events.

Can this detector be used with rising bollards and safety-critical applications?

Yes. The optional power fail memory feature retains vehicle presence status during power interruptions and detects vehicles that arrive while power is off, providing immediate detection when power restores. This is essential for rising bollard applications where undetected vehicles could cause damage.

What is the loop inductance range supported by this detector?

The detector self-tunes across a 20-1500μH inductance range, accommodating most standard loop configurations from small vehicle bays to larger entrance loops. The 4-step adjustable frequency (12-80kHz) allows fine-tuning based on specific loop geometry.

How is the detector mounted and what connectors are used?

The boxed PD130 mounts on a shelf or DIN-rail socket using an 11-pin submagnal connector (86CP11). The PCB-based PD139 uses panel or plug-in mounting with a Molex 10-pin female connector. Flying lead options are available for both variants.

Case studies