Relax. We’ve got your servicing needs covered

Your Sonardyne transponders have been designed and manufactured to help you save time and money, lower risk and accomplish precisely what you set out to do in your subsea operations. However, like any precision instrument, they should be regularly serviced and maintained to maximise performance.

Our subsea equipment servicing, calibration and maintenance offering is designed to ensure that whether you are about to start a project or return onshore, your equipment is working as it was when you took delivery.

Pre-deployment – What we check

Our transponders are fitted with a variety of sensors, all of which leave our factory fully calibrated. Yet, through operational use, knocks in the field and marine growth, the quality of sensor readings can degrade. This is why we recommend they undergo regular checks to ensure they remain within specification.

Our technicians are trained and equipped to carry out the following calibration checks:

  • Depth/Pressure/Strain Gauge Sensor
  • Digiquartz Sensor
  • Inclinometer Sensor
  • SV Sensor Full Calibration
  • SV Sensor Verification
  • PRT/Temperature Test

We regularly improve product performance and functionality by upgrading transponder firmware, so we’ll check to make sure your equipment is operating on the latest version.

Pre-deployment checks also include tank testing, where a full acoustic check is carried out on the transmit and receive functionality of the unit. Batteries are also checked to ensure that they will last the duration of your operation.

Post-deployment – What we check

No-one knows your transponders better than we do, so once they come out of the field and before you put them back on the shelves, we’ll perform a thorough diagnostic inspection. This includes checking and, if necessary, replacing the anodes, o-rings, transducers, guards and batteries.

For more information about these services, including pricing, please email