The Merlin subsea data logger is suitable for operation down to depths of 4000 metres, and can monitor up to 10 analogue, a K type Thermocouple and 1 Modbus serial input plus integral 3-axis acceleration and light sensor. The logger has an internal memory capacity of 1,500,000 readings, which can be expanded with an SD memory card to over 100 million readings. The analogue input channels are user configurable to measure, voltage, or frequency. The serial input supports RS485 Modbus protocol which can be used to read pressure and temperature data from up to 8 of our subsea pressure sensors.
The Merlin subsea data logger can be configured to measure a wide range of parameters such as pressure, flow, continuity etc. It is compatible with most sensor analogue outputs and also standard serial protocols. It is also compatible with Keller subsea pressure sensors (both analogue and serial outputs) and NT Series subsea turbine flow meters. For more information on compatible pressure and flow sensors click here.
The logger can hold 1.5 million readings in it’s internal flash memory and a further 100 million readings on a micro SD card. Two communications options are available:
Standard – RS232 communications for logger programming and data download from the flash memory (1.5 million readings)
Enhanced – wireless USB over Wifi for logger programming, data download, both flash and micro SD card. The RS232 port is also included for programming and data download of the flash memory where Wifi cannot be used.
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