Subsea NetDI® Logger

Standard NetDI® data logger

Standard NetDI® data logger with 4 sensor inputs and 1 host data output. The titanium housing is available up to 6000m

Data logger with Li-Ion PowerPack™

Data logger with Li-Ion PowerPack™ and exploration sensors as payload installed into a towed underwater vehicle (“fish”) for EMV exploration (c) photo by Mundal AS

Inspection Sensor-Pack

Inspection Sensor-Pack installed into a ROV payload frame. It contains 4 additional leak detection sensors for dye, Oil-in-water (PAH), Methane (CH4) and CTD (conductivity). The NetDI® data logger communicates on a multiplexed line with the OceanView™ software, installed at the control centre

Data acquisition

Highly reliable data acquisition of the movement of a giant hook at 2000m depth.. (c) Photo Huisman / Fugro

• Small and versatile data logger with optionally Li-Ion battery
• Complex real-time data processing units
• Deep-sea monitoring
• Condition monitoring systems e.g. with alarm function
• PLC functions

• Industrial STM ARM controller
• Low power consumption for long deployments: typ. 2W standard, ~µW standby
• Large data storage – enough to safe high-resolution measurements for years: HDSD card, typ. 8GB up to 32GB
• Download on USB stick
• Firmware or configuration update via USB
• Small footprint enables compact housings with embedded power source (Li-Ion battery)
• Configurable input/output signals – analogue 24 bit and digital
• Flexible design for customized solutions
• Real-time processing of values and additional quality flags and data
• Many data protocols implemented for external sensors, devices, analyzers etc.
• Complex control of external actors such as pumps with the build-in Soft-PLC
• Standardized ASCII NMEA-0183 output
• Typ. 4 serial Interfaces (RS232 / RS485), optional up to 30 serial interfaces, optical isolated
• Wide input voltage range of +9 to 32 Volt, high efficiency DC/DC
• Typ 1Hz sampling rate, configurable. Short time 100Hz. Long time cycles days…years
• Calibration and versatile formulas included, incl. UNESCO formulas for seawater analysis
• Operating IEEE double precision for all internal calculation
• Many data protocols for external sensors, analyzers, samplers etc.
• Depth rating shallow water 300m up to 6000m
• Titanium housing, titanium SubConn^® connectors MCBH-5. Typ. size Ø168mm x 380mm length

• External 7″ display box for configuration and dignostic
• Additional DC/DC voltage outputs for external sensors, e.g. 12V, 24V regulated. In combination with the Soft-PLC switchable
• Control LEDs for easy quick check after the deployment
• Additional up to 30 RS232/RS485 interfaces (needs larger housing)
• Configurable Soft-PLC for complex control procedures, time or event triggered with many options
• Position control and geo-referencing e.g. via external data
• Depth rating certificate (pressure test with static or cycled conditions)