The MIDAS ECM is one of only a few multiparameter current meters that allow real-time operations over several thousand metres of cable, as well as autonomous deployment.
A highly versatile point current meter, it is designed with durability and ease of deployment in mind. Valeport’s latest electronics architecture allows multiple additional sensors, and a variety of communications options. A choice of titanium or acetal housing gives depth rating up to 5000m.
Regular output from all sensors at 1, 2, 4 or 8Hz.
Regular sampling pattern, where instrument takes a number of readings, then sleeps for a defined time.
Instrument sleeps until a selected parameter reaches a set value.
Instrument sleeps until predefined start time
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 for a variety of cable lengths, all fitted as standard and selected by pin choice on the output connector:
Up to 200m cable, direct to serial port via USB adapter
Up to 1000m cable, addressable half duplex comms
2 wire power & comms up to 6000m cable (cable dependent)
2400 - 115200 (FSK fixed at 19200, USB 460800)
8 data bits, 1 stop bit, No parity, No flow control
The MIDAS ECM is fitted with 16Mb solid-state non-volatile FLASH memory. Total capacity depends on sampling mode; continuous & burst modes have a single time stamp at the start of the file, trip mode (profiling) stores a time stamp with each reading. A single line of current data uses 10bytes, with each additional parameter taking 2bytes and a time stamp uses 7 bytes. The examples are for an instrument measuring speed, direction and CTD.
>520,000 data points
>360,000 data points (>15 profiles to 5000m)
System is supplied with DataLog X2 Windows based PC software, for instrument setup, data extraction and display. DataLog X2 is licence free.