MarkIVB configuration options

The electronic control boards of all the configurations is packaged in a Waterproof (IP68) NEMA box.

1. Instrument with LCD character display and standard sensor User supplies battery and charger

This is the most basic system used for underground surveys. The control box has a transparent cover through which a 20x4 LCD character display shows all the system's output. The operator input is through a five-key pad. The box has a belt to be carried round the neck at chest level.

The sensor is a 30cm cylinder with a belt to be horizontally carried at knee level.

2. Instrument with LCD character display and underwater sensor User supplies battery, charger and cable needed from instrument to sensor

This configuration has the same control box as in option 1 but the underwater sensor is supplied in a waterproof, sealed tube with appropriate connectors. This sensor can still be used for underground surveys but, if inserted in an outer casing with nose, cable attachment point and fins, It makes a complete towing 'fish' for underwater surveys. The sensor is supplied with a short length of cable (1meter) and a connector to be plugged either directly to the control box or to a user-provided shielded cable extension of a suitable length for the underwater surveys.

3. Instrument with both sensors User supplies battery, charger and cable needed from instrument to sensor

This is the complete configuration 1 with the addition of the sensor of configuration 2.

4. Addition of Graphical User Interface

This option replaces the character LCD and keypad of configurations 1, 2 and 3 by a 3.5" Color Graphical Interface with touch panel.

5. Addition of GPS

This option integrates a SIRFIII GPS module inside the control box and mixes the GPS fixes with each PPM reading on the grid files.

This option is highly recommended for underwater surveys.

6. Subtraction for instrument with no user interface Supplied control program available for Windows XP or Windows 7 only

except for USB to an external computer

This negative option removes the user interface from the control box and replaces it with a more sophisticated Windows-based interface (PPM Utility program) on a laptop for surveys made while sitting on a vehicle (sensor on a trailer) or a boat (sensor in an underwater fish).