Subsea Data Logger DL-3.0

Subsea Data Logger


The Subsea Data logger is a proprietary data logger designed by DLM for use in the offshore industry. Comprising of multiple onboard sensors and with extra capacity for external mV or mA inputs, the DL-3.0 can sample onboard 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 into 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)