HYDROlog™ 2000

Test pressure and external temperature – up to 1400 bar

Ideal for real time hydrotest monitoring

The HYDROlog 2000 has been superseded by the more advanced HYDROlog 3000.

Find out more about the new instrument today!

If you have any queries relating to the HYDROlog 2000, please contact the Aquatec team at This email address is being protected from spambots. You need JavaScript enabled to view it. or +44 (0) 1256 416010.


Designed with durability in mind, the advanced HYDROlog 2000 is a long-lasting instrument, capable of monitoring high pressure in deep water environments…

…giving accurate, real-time reporting.

The HYDROlog 2000 is a resilient instrument suitable for monitoring test pressure and ambient water temperature during subsea pipeline hydrotesting. The instrument has a 4000m standard water depth rating, making it ideal for deep water deployments. To ensure you have the most appropriate range for your test, choose between 6 different pressure ranges before purchasing – 100, 300, 600, 1000, 1200 or 1400 bar.


  • Real time hydrotest
  • High pressure hydrotest
  • Deep water hydrotest

Hydrotest Pressure

  • To demonstrate a successful hydrotest, a continuous record of pressure is required. The data loggers are completely self-contained and record test pressure at regular intervals throughout the test.
  • Data is downloaded at the end of the test to produce a permanent record of the hydrotest.

Temperature Compensation

  • Once the pipeline under test has been sealed, the internal pressure may vary with temperature – caused for example by tidal fronts. It is important to be able to record temperature variations during the hydrotest so that any temperature-related cyclic or step pressure changes can be correctly correlated to temperature. All HYDROlog instruments include temperature measurement, additionally Aquatec offers a range of temperature-only instruments that can be used to gather temperature data at additional locations along the pipeline.

Long-lasting performance

  • Designed in stainless-steel, the HYDROlog 2000 will protect your valuable data in all water environments.
  • The instrument contains a long-lasting battery, and can store up to 4 million parameter readings in non-volatile FLASH.

Real-time data

  • With real-time reporting capability, the HYDROlog 2000 gives you the opportunity to react quickly to changes in pressure.
  • Integrate with Aquatec’s AQUAdisp subsea display to present your data in real-time.
  • When it is impractical to retrieve your HYDROlog 2000, use with the AQUAmodem Op1 for reliable data download and communication.

Measure more

  • To give you optimum accuracy, select one of 6 pressure ranges before purchasing - 100, 300, 600, 1000, 1200 or 1400 bar.
  • The instrument gives accurate results, to ensure the monitoring of your hydrotest is successful.

A simpler hydrotest

  • The HYDROlog 2000 can be integrated with a number of Aquatec’s instruments to offer real-time subsea communication. This includes optical modems, subsea displays, cables and acoustic modems.

Ready to use

  • We supply you with everything you need to get started, including software, a dummy connector, USB cable, transit case, maintenance kit, spare battery, warranty and calibration certificate, and a manual.

Sensor specification




Sensor type


Piezo-resistive bridge


-2 to 30°C standard, other ranges on request

Sealed gauge: 100, 300, 600, 1000, 1200, 1400 bar


better than 0.007°C

better than 0.01% full scale



0.1% full scale over temp range

Logger specification

Data storage capacity

Greater than 4M parameter readings, in non-volatile FLASH

Logging lifetime

Depends on logging parameters - up to 1 year

Data retention

>10 years

Burst sampling

Bursts every 1 – 255 seconds or 1 – 255 minutes

Within-burst rate

From 1 Hz to once every 30 seconds

Burst averaging

Bursts may be averaged to a single data value


RS232 or RS422 (specify) and USB 1.1, bus powered

External interfaces

Subsea display, optical modem


3 x 3.6V Custom Lithium ‘AA’ cell pack


AQUAtalk for Windows for configuration and download


¼” NPT, BSP or Autoclave

Maximum depth

4000m standard, custom solutions beyond