Geomatrix - Model QAS4 -Multi Sensor Arrays
QAS4 enables multi sensor arrays, most commonly magnetometer arrays, to be deployed off small vessels via simple portable TVG frames. Capable of supporting up to 4 x G-882 magnetometers and external serial devices - such as digital altimeters, pitch and roll sensors and sound velocity probes - the QAS4 system has been designed to be versatile. Available with an optional fully integrated 450kHz or 900kHz digital Side Scan Sonar, the QAS4 telemetry system transforms a Transverse Gradiometer Frame (TVG) frame into a marine multi sensor platform.
Designed for simple plug and play operation the Wet end telemetry unit automatically manages and controls communication with the top end power supply. A network is then established between the telemetry system and a PC or laptop for recording data.
- 10 Mbps bi-directional Ethernet Link.
- Operates on up to 500m of Standard Coax cable.
- Working Depth of 100m.
- On-board Pitch & Roll Sensor (housed in Wet-End box).
- On-board Side Scan (option)
- 28v & 24v power supplies to external sensors with Voltage & Current measurements.
- Control of power switching to all external sensors.
- Support for 2 G-882 Magnetometers (optionally 4 G882 Magnetometers).
- Auxiliary connector compatible with standard Altimeter Micro SubConn.
- Remote Power Up / Power Down using power over Ethernet.
- Safety Interlock towards coax detects Open Circuit connection.
Each digital device is allocated a unique UDP port number making configuration of bespoke arrays straight forward. A dedicated 6 pin Micro SubConn connector allows the digital serial data from standard Tritech and Valeport altimeters to be recorded directly. No additional hardware required- the altimeter can remain in the nose of the G-882 and a y-splice cable supplied for connecting both the G-882 and Altimeter to separate ports.

- Channels:
- Up to 8 data channels.
- 4x G882 Compatible sensor connectors (can be used with other sensors); 1 x Auxiliary connector (Altimeter compatible but can be used with other sensors); Optional 2 X 3W side scan sensor connectors.
- Data Bandwidth: 10 Mbps bi-directional Ethernet Link to top side.
- Depth Rating: Up to 100m.
- Cable Specification: Operates on up to 500m of Standard Coax cable.
- Side Scan Sonar: Optional 450kHz or 900kHz Side Scan Sonar board can be integrated into the telemetry unit.
- Power Input: 240v ship supply (optionally 110v).
- Instrument Power Supply.: 28v & 24v power supplies to external sensors with Voltage & Current measurements.
- Pitch and Roll: In built digital Pitch and Roll sensor with 0.1 degree resolution and 0.5 degree accuracy.
- Connectors: All industry standard Micro Subconn.
