Description

• Subsea data logger
• Integral sensors for x, y, z acceleration and light
• 10 analogue inputs channels (0-5vDC)
• Supports voltage, mA and frequency inputs
• Up to 7 analogue inputs can be set for flowmeter frequency inputs
• 1 serial channel for RS485 Modbus protocol
• 1 serial channel for CANBUS serial data
• Serial channel supports up to 8 Keller subsea pressure sensors
• Pressure measurement to 1360 bar, with accuracy to 0.01% FSD
• Flow measurement 0-5 to 0-10,000 Ltrs/min accuracy 0.5% FSD
  
• Optional subsea high contrast backlit LCD display
• Internal memory 1.5 million readings
• Micro SD card holds an additional 100 million readings
• Depth rated to 4000 metres
• External power supply 11-30vDC
• Power consumption 8mA with display on, 5mA with display off
• Internal battery option provides minimum one month operation without external power
• Surface programming and data transfer by wireless USB link, or standard wired USB cable.

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.