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Door/Barrier/Parking 
Loop Detector IG315/2 
Loop Detector IG325/2 
Circuit Board Detector 
Enclosure 300 Series 
TS505 Tread sensor
Loops/Loop sealant 
Motor ctrl. (non-revers. starter) 
Motor ctrl. (reversing starter) 
Motor ctrl. with converter 
Remote Control 
Signal Transmitter 
Traffic Light Installations 
Traffic Data Acquisition 
Licence Plate Recognition 
Tunnel Monitoring 
Cross-application 

IG325/2 Dual Channel Loop Detector
with enclosure and eleven pin connector (type 78-S11)

 Home > Products > Door/Barrier/Parking > Loop Detector IG325/2

Application range | Features | Function description | Technical data
Connections / Order specifications | PDF-Download

Application range
  • Vehicle detection for door, gate, and barrier control
  • Monitoring of occupancy and vehicle counting in parking decks
  • Signal output for traffic lights and traffic processors
  • Safeguarding and monitoring e.g. of conveyor systems and car-wash plants
Detail view
Features
  • Fast automatic tuning provides simple initial operation
  • Continuous adjustment of frequency drifts e.g. due to changing temperature and humidity
  • Multiplex loop monitoring
  • LED indicators for loop failure report (switchable occupancy report on failure)
  • Switchable automatic adjustment after fault
  • Adjustable sensitivity
  • >Permanent or impulse mode
  • Switchable output delay
  • Switchable impulse signal on loop exiting
  • Direction signal (switchable)
  • Special software for traffic applications (optional)
 Function description
The induction impulse transmitter IG325/2 analyses loops laid in the ground. These represent the inductivity of a high frequency oscillator circuit. The metal body of a vehicle passing the loop causes a change of the frequency of the oscillator circuit. The loop detector analyses this and sends a switching signal for output over a potential free relay. This is also displayed on the front LEDs.

The analysis of the loop frequency is performed by a microprocessor that automatically adjusts to the existent frequency and automatically compensates changing loop inductivities due to temperature, humidity or aging of components. The dual channel induction impulse transmitter IG325/2 analyses two loops in multiplex process. Since only one loop at a time is active, interference is avoided even when loops are interlaced.
Technical data
Power supply 230 V AC: (-10 - +6) % / 4.5 VA (50 Hz: +/-0.5 %)
resp. 24 V AC/DC: +/-10 % / 3 VA
Operating temperature range -25°C to +70°C
Storage temperature range -40°C to +80°C
Safety IP 30
Enclosure (picture) plastic
l = 79 mm, w = 37 mm, h = 68 mm
Connections (picture) eleven pin connector (type 78-S 11)
measurements of socket are manufacturer-dependent
Weight 240 g
Tuning range 15 µH to 2000 µH
(recommended range 100 µH to 300 µH with a max. of 30Ω)
Sensitivity 7 levels per channel
from High 0.01 % to Low 0.9 % (adjustment of frequency in %)
Operational modes impulse (100 ms) (optional 1s) and permanent mode
Adjustment automatic after power-on, after pushing reset switch
Output potential free relays
Umax = 250 V, Imax = 2 A, Pmax = 60 W (ohm resistive load)
Displays LED red = loop failure, LED green = detection,
LED yellow = tuning (when blinking) / power
Safety circuit
Loop input
 galvanic separation by transmitter,
glow lamps
Please observe also the respective safety instructions!

Connections / Order specifications

Standard model
Special model
Special model
32230WT    3224WT
32230ST    3224ST
3224STT
32230WV    3224WV
32230SV    3224SV
3224STV


EC Conformity


Requirements for the usage according to regulations

Requirements acc. to ETSI EN 300330-1 (2002-12)
For the antenna factor (loop area A in m2 multiplied by the number of loop windings N) the following
is imperative: N*A <= 60 m2

Product class 2: Product class 3:
Max. length / width 30 m
Area < 30 m2 Area > 30 m2
Number windings > 1 Number windings 1



Constraints for the compliance with EN 300330-1

According to the stated formula, the following loop windings in dependence to the loop area are recommended:

Product class acc.
to EN 300330-1		 Area [m2] Number windings Lloop [µH]
2 (1-3) 6 100-300
(3-5) 5 80-260
(5-10) 4 160-320
(10-15) 3 180-280
(15-30) 2 80-180
3 (30-60) 1 40-100

Operating frequency range (L = 15 µH - 400 µH)

20.05 kHz < f < 70 kHz

Total inductivity (loop + feed cable)

Specification: Ltotal < 400 µH

Example:
Loop inductivity 200 mH; feed cable inductivity < 200 µH
with 100 µH / 100 m: length of feed cable < 200 m

Requirements acc. to DIN EN 60950
The device has basic insulation.


PDF download

Data sheet IG325/2
User manual IG325/2

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