Induction Loop Detector
2-Channel ET2C
Detector ET-2062 Features:
  • Interpretation of two loops
  • DC-isolated between loop and detector electronics
  • Automatic alignment of the system after switching on
  • Continuous adjustment of frequency drifts to eliminate environmental influences
  • Suitable for the monitoring of single locactions
  • No influence of loop 1 and loop 2 by multiplex
  • Sensitivity adjustable independently from loop inductance
  • Occupancy message by LED display
  • Outputs as floating relay contacts
  • Relay control from no-load current to operating current principle adjustable via switch
  • Loop breakage or loop end signal by LED
  • Signaling of an occured and corrected loop interference
  • Display of the basic frequency via flashing signals of the green LED
  • Diagnostic possibility via external diagnostic device.
  • 11-pole round plug

Adjustment Possibilities:

  • Two common freqency difference limens for both channels
  • Four sensitivity levels for each channel
  • Hold time 5 minutes or infinitely, commonly for both channels
  • Recognition of presence or direction
  • Continuous or impulse signal for relay channel 2
  • Directional continuous or impulse signal

 
Casing Design
76 x 38 x 71 mm (H x W x L),
RAL 5005 with 11-pole round plug
Supply Voltage
230V +10%/-15%, 50/60Hz
Transformer short circuit proof
acc. to VDE 0551
Power Consumption
max. 2,5 VA
Admissible Operating Temperature
-20 °C bis +70 °C
Storage Temperature
-40 °C bis +70 °C
Air Humidity
< 95 % not bedewing
Loop Inductance
20-700 µH
Frequency Range
30-130 kHz in 2 Levels, commonly for both channels
Sensitivity
0,01 % bis 0,65 % (f/f) in 4 Levels for each Channels 0,02 % bis 1,3 % (L/L)
Hold Time
5 minutes or infinitely, commonly for both channels
Loop Lead
< 250 m
Loop Resistance
< 20 Ohm (incl. lead)
Relay
Operating/no-load current principle adjustable via switch
Contacts: 250V AC, 4A, 1000 VA (resistive load AC)
Minimum contact load: 10mV/10µA
Test voltage: coil-contact 4000V AC contact-contact 1000V AC
Signal Period, Impulse Time
> 200 ms
Cycle Time
> 80 ms
Response Time
160 ms
Critical Velocity
- for recognition of presence
  100 km/h 
- for recognition of direction
  45 km/h at 1m loop head distance
  90 km/h at 2m loop head distance