DU100 Vehicle Detector Diagnostic Unit

DU100 Vehicle Detector Diagnostic Unit

'Fault Analysis and Installation Verification for Standard Detectors'

Hand held test instrument capable of providing installation/service personnel with positive verification of the correct operation of a PDx3x range vehicle detector installation.

Request Quote

Product Features & Benefits

The DU100 Diagnostic Unit may be utilised in conjunction with Nortech standard 3-series inductive loop detectors, which have integral diagnostic capability.

Current operational and historical data are transferred from the vehicle detector to the DU100 by means of an optical link. Data transmission from the vehicle detector is continuous during normal operation. This allows diagnostics without service disruption. Received data is verified for integrity by means of a cyclic redundancy check (CRC) process, and then displayed on the LCD screen.

The DU100 Diagnostic Unit is indispensable for:

  • Setting and verifying detector sensitivity
  • Performance checks on loops and installation
  • Checking intermittent failures through the historical data
  • Eliminating any detector crosstalk


  • Compact, self-contained unit
  • Exclusive optical readout
  • No service disruptions
  • Loop diagnostics
  • Historical data available
  • Unique crosstalk monitor


Frequency Resolution: 1Hz
Sensitivity Resolution: 0.001 %ΔL/L
Display Element: 2 line x 16 Character LCD
Display Contrast: Adjustable via multi-function keys
Keys: 1 x Mode Selection, 1 x Power-on/execute
Auto Power off: 2 Minutes after last operation
Optical Receiver: Detachable wand with photo-diode
Power Supply: 4 x l.5V AA dry cell
Battery Life: > 10 hours continuous
Operating Temperature Range: 0°C to +50°C
Dimensions: 200mm (h) x 100mm (w) x 40mm (d)
Weight: 380gms including batteries