Subsea Data logger


The Subsea Data logger is proprietary data logger design by DLM for use in the offshore industry. Comprising of multiple on-board sensors and with extra capacity for external mV or mA inputs, the DL-3.0 can sample on-board and external sensors at customisable
sample rates of up to 800Hz.

The data logger is housed within a compact stainless steel 316 enclosure with mounting holes for easy integration to existing or new subsea equipment. Ideal for long or short term deployments on offshore and subsea structures, but also ideal for R&D projects where
verification data is required to compare against computer models.

Part Number: 0001-1437

Key features

  • Self-powered internal data logger
  • Internal 16Gb SD card for storing logged data
  • PC interface to download data in .CSV format
  • Subsea connecter for mV or mA
  • 10.4 Ah lithium battery


  • Array cable monitoring
  • Monitoring subsea acceleration
  • Movement monitoring on Offshore structures

Product specification

Load Cell Input: mV / 4-20mA
Load Cell Sensor Range: 0.4 – 5.0 mV/V / 3.00mA – 22.00mA
Load Cell Bridge Resistance: 350 - 2000Ω
Load Cell Logging Frequency: 22 User selected options between 800Hz and once per hour
Accelerometer Input: Onboard sensor
Accelerometer Sensor Range: ±125dps, ±250dps, ±500dps, ±1000dps or ±2000dps
Accelerometer Logging Frequency: 17 User selected options between 416Hz and once per hour
Gyroscope Input: Onboard sensor
Gyroscope Sensor Range: ±125dps, ±250dps, ±500dps, ±1000dps or ±2000dps
Gyroscope Logging Frequency: 17 User selected options between 416Hz and once per hour
Gyroscope Logging Frequency: Onboard
Status Temperature: ° C
Status Battery Status: Charge level
Logging Frequency: 8 User selected options between once per 10s and once per hour
Protocol: RS232 ASCII
Baud Rate: 9600 / 19200 / 38400 / 57600 / 115200
Data Bits: 8
String format: Configurable
Logging initiation: PC software, external switch, time delay or set-point trigger
Data download: Primary USB or secondary RS232
Memory Card: Sandisk 16Gb MicroSD
Pressure Test: 200Bar
Connector: MCBH-8
Mounting Information: 6 x 6.6mm thru holes on 118mm PCD
Body Material: 17-4PH Stainless Steel
Material Cert: 3.1 (3.2 upon request)