Sensors
The miniTIDE is fitted with a novel temperature compensated piezo-resistive pressure transducer that offers levels of performance previously only available from costly resonant quartz transducers.
Pressure
Range: 10, 30, 100, 300 or 600 Bar
Resolution: 0.001% range
Accuracy: ±0.01% range
Data Acquisition
The miniTIDE features a selection of pre-programmed sampling patterns, allowing the device to monitor (and average) pressure readings for a number of seconds at regular time intervals, e.g. 40 seconds sampling every 10 minutes.
Alternatively, the instrument may be set to output data at a fixed sample rate of 1 or 2 Hz, for continuous monitoring applications.
Communications
The instrument will operate autonomously, with setup and data extraction performed by direct communications with PC before and after deployment. It also operates in real time, with a choice of communication protocols fitted as standard and selected by pin choice on the output connector:
RS232 Up to 200m cable, direct to serial port
RS485 Up to 1000m cable
Baud Rate: 4800 - 460800
Protocol: 8 data, 1 stop, No parity, No flow control
Bluetooth: Optional Bluetooth adapter available for cable free data recovery (adapter not designed for immersion)
Memory
The miniTIDE is fitted with a solid state non-volatile Flash memory, capable of storing over 30 million lines of data.
Electrical
Internal: 1 x C cell, 1.5v alkaline or 3.6v lithium
External: 9 - 28vDC
Power: <200mW
Battery Life: 30 days (alkaline) @ 40 secs / 10 mins
80 days (lithium) @ 40 secs / 10 mins
Connector: Subconn MCBH10F
Physical
Materials: Acetal or titanium housing (as ordered), acetal lock ring and transducer cap
Depth Rating: 500m (acetal)
6000m (titanium)
NB: Maximum deployment depth may be limited by transducer range
Instrument Size: 48mmØ, 270mm long (including connector)
Weight: 0.7kg (acetal)
1.4kg (titanium)
Shipping: 51 x 42 x 27cm, 10kg
Software
System is supplied with DataLog Express Windows based PC software, for instrument setup, data extraction and display. DataLog Express is licence free.
