Compact, high-precision pressure and temperature logger for reliable subsea hydrotest monitoring.

The HYDROlog 3000 Series offers reliable, high-accuracy pressure and temperature logging for demanding subsea operations. Rated to 4,000 m and built with robust stainless steel or titanium housings, these compact loggers are ideal for hydrotesting, flooding, and subsea pressure monitoring. With flexible sensor configurations, real-time data access via optical modem or subsea display, and up to 1 year of autonomous operation, the HYDROlog 3000 range delivers dependable performance in the harshest environments.

DATASHEET

Features

Discover the innovative features that set our products apart, designed to streamline your workflow, enhance efficiency, and provide a seamless user experience tailored to your specific needs.

01

Hydrotest Logger

  • High accuracy and precision pressure: ±0.05%FS accuracy, ±0.01%FS precision up to 1000bar and ±0.1%FS accuracy at 1400bar
  • A variety of sensor options available: 300bar, 600bar, 1000bar, 1400bar
  • Integral ambient temperature sensor
  • 1/4” NPT, BSP or Autoclave (MP or HP) female process connection options. Others available on request
  • Depth rated to 4000 m
  • Integral battery and memory
  • Data logging with real-time access via optical modem or subsea display; supports download while logging

Specifications

Explore the advanced capabilities of our instruments and systems through their technical specifications.

TemperaturePressure
Sensor typeThermistorPiezo-resistive bridge
Ranges-2 to 35°C standard, other ranges on requestAbsolute: 301, 601, 1001, 1201, 1401 bar
Accuracy±0.1°C±0.05% FS over temperature range* up to 1000bar and ±0.1% FS at 1400bar
Precision ±0.1°C±0.01% FS over temperature range up to 1000bar and ±0.1% FS at 1400bar
Resolution 0.001°C0.002% full scale
Parameters Test pressure(s), ambient temperature, battery voltage, gauge pressure, differential pressure (depending on configuration)
Data storage capacity
64MB in non-volatile FLASH (standard)
Up to 2GB (upgrade)
Logging lifetimeDepends on logging parameters - up to 1 year
Data retention
>20 years
Sampling
Burst or continuous
Acquisition rate
Up to 8 Hz depending on sensor
Burst averaging
Flexible averaging of multiple samples within burst
Communication
USB and either RS232 or RS422
External interfaces
AQUAdisp ® subsea display + AQUAmodem ® Op2 optical modem + AQUAswitch ® ROV switch + Ext. battery
Battery
4 x AA cells (selected from alkaline, lithium or NiMH), external batery pack, or external power supply
Software
AQUAtalk TM for Windows for configuration and download
Attachment
1/4” NPT, BSP or Autoclave (MP or HP) female process connection options. Others available on request
Maximum depth
4000m standard, custom solutions beyond
Material316 Stainless Steel or Titanium Grade 5
Weight(Stainess Steel, PT model) 4kg in air
DimensionsDiameter - 60mm, Length - 310mm