All it takes for environmental research Diver-NETZ - Mobile Schlumberger Water Services

2 Diver-NETZ - Mobile Diver-DXT < 500 m Bluetooth Smartphone file-server GPRS Diver-Gate(M)

3 Components Diver-NETZ Diver-DXT (with cable and Diver):  Short range radio (500 m LOS)  Build-in baro data logger  Battery life >5 years

4 Specification Diver-DXT  Main specs:  High heat ABS  Protection is IP68  Build-in battery  Replaceable battery (following instructions)  Build in baro sensor  Accuracy 1 cmH 2 O (typ)  Memory records  Automatic sync. with Diver  Cable length up to 300 m  Radio frequency is 2.4 GHz  Wake-up every 14 sec.  Radio range 500 m LOS  Compliant to CE and FCC

5 Components Diver-NETZ Diver-Gate(M) for mobile use:  Bluetooth interface between DXT and mobile phone or PDA  Internal antennas  Rechargeable battery (10 hrs)

6 Specification Diver-Gate(M) Small (pocket size) device. Removable rubber guard protect against environmental conditions. Operating temperature -20ºC to +60ºC. Build-in Short Range Radio for communication with Diver-DXT. Radio range 500 m (LOS). Radio frequency 2.4 GHz. Internal antenna. Build-in Bluetooth interface for communication with Smartphone. BT Radio range 10 m. Internal antenna. Build-in rechargeable Li-ion battery. Fully charged battery for 10 hours use. (Continuous) charging through USB connection.

7 Components Diver-NETZ Diver-Mobile:  For windows Mobile 6.0  Automatic data read  Send data to ftp-server (option)

8 Workflow Diver-NETZ (Diver-Mobile) Bluetooth connection with Smartphone (20 sec). Diver-Mobile gives instruction to Diver-Gate(M) to search for Diver- DXTs (30 sec). The data of the selected locations are collected (5 to 60 sec). The data base is updated. The files (*.dat-files) are transmitted to the ftp-server (1-3 min). Files can be read by Diver-Office (Premium) and uploaded to website

9 Radio Range to Diver-DXT Radio Range is 500 m (LOS). This is under good conditions!!! Radio Range is negative affected by: Obstacles which interfere Line Of Sight (LOS). Obstacles can be anything like vegetation (plants/trees), buildings, cars etc. Metal close to the Diver-DXT or Diver-Gate antenna. Examples are metal well cover, car/truck etc. Position of antennas (the higher the better). Examples are Diver-DXT under ground level or on ground level. Weather conditions (fog, rain, snow etc). Flooding conditions. Diver-DXT under water (or snow/ice)

10 Radio Range to Diver-DXT Street cover: Diver-DXT is under ground level. Radio distance LOS 100 m. Radio distance around corner 20 m. Metal casing: Diver-DXT is 1 m above ground level. Radio distance LOS 200 m. Plastic casing: Diver-DXT is 1 m above ground level but with vegetation. Radio distance LOS 200 m.

11 Diver-NETZ - Mobile pilot projects Schlumberger Water Services

12 Pilot testing – Municipality Wijchen Client/site Water supply company Rural Equipment 10 DXT + Mini-Divers Metal well casings

13 Drivers Legislation Accessibility Client value No access to private property Time saver Pilot testing – Municipality Wijchen

14 Pilot testing-Municipality Den Helder Client/site Municipality Urban Equipment 1 Diver-Gate(M) 5 DXT + Mini-Divers in street covers

15 Drivers Legislation Accessibility Client value Easy Drive-by reading Time saver Pilot testing-Municipality Den Helder