| General |
| Purpose |
Detection system for underground pipes and cables (metallic and non-metallic) |
| Method |
Ground Penetrating Radar + Tracer system |
| Use |
Manual pulling: can be operated by 1 person |
| Visualisation |
The DigAssist Mobile software shows real-time GPR profiles of the subsurface on the screen of the included PDA (Windows Mobile 6) |
| Control |
Controlled by software by the included PDA (HP IPAQ 214) |
| Depth range |
Maximum approx. 2 - 2.5 m bgl. (real penetration depends on soil type: Clayey ground and/or salt water can severely reduce the penetraton of the GPR signal |
| Weight |
Approx. 10 kg |
| Size |
Approx. 70 x 35 x 12 cm (l x w x h) |
| Scan width |
Approx. 40-60 cm |
| Technical |
| Data transmission |
Wireless: Wi-Fi (IEEE 802.11 g) for radar data / Bluetooth for GPS data |
| FCentre |
500 MHz |
| Pulse repetition rate |
115 kHz |
| Trace spacing |
0.05 m |
| Positioning |
Wheel (bidirectional odometer) and/or dGPS (built-in) or none (continuous measurement) |
| Time Range |
1-50 ns (1 ns steps) |
| Gain |
2-3-5-9 points, every point can be adjusted from 0 - 84 dB |
| Stacking |
1 - 1200 x |
| Processing filters |
Background removal, sliding average (over 2-30 traces) |
| Zero-point setting |
Automatic or manual |
| Temperature range |
0 – 40 °C |
| Protection |
Waterproof ( protected against spraying and splashing water) |
| Energy |
| Power source |
Built-in NiMH batery pack 12V / 9Ah : Remaining battery power is shown in the software |
| Operating current |
Max. 0.9 A, 12 V |
| Charging current |
Max. 1.5 A 230V (using the included charger) |
| Charging time |
Max. 6 hours |
| Life-cycle batteries |
Approx 400 - 500 cycles |
| Positioning |
| Built-in dGPS |
Accuracy 2.5 – 3 m (according to producer, real precision depend on local circumstances). Optional logging of positon to file: Every second (GGA string). |
