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Omni Instruments offers a range of products for subsea use, suitable for depths down to 4000 metres. We can supply individual components such a cable assemblies, switch units, junction boxes and housings. We also have a great deal of experience in building integrated logging and instrumentation packages to customer's requirements for the logging and display of flow, pressure, temperature, continuity, 3 axis acceleration and 3D motion & orientation.
Subsea Switches - suitable for operation by an ROV, rated at up to 5 amps @ 24vDC. Depth rated to 4000m.
Subsea Proximity Sensors – switching range up to 30mm with PNP or NPN output. Depth rated to 4000m.
Subsea Pressure Sensors – ranges from 0 to 1360 bar gauge and up to 700 bar DP. Depth rated to 4000 metres. Outpus avaialble 4-20mA, 0-5v and RS485.
Accuracy to 0.15% or 0.01% of full scale range.
Subsea Flow Meters – ½” to 6” stainless steel turbine meters for chemicals and seawater. Depth rated to 4000 metres.
Subsea Temperature Sensors – PT100 type with 4-20mA or 1 to 5v output. Depth rated to 4000 metres.
Subsea Stab Probes – wet –wet mateable electrical stab probes
MSL1200D Subsea Logger for Pressure, Temperature and Flow
Our MSL1200D logger is a compact subsea logger with an integral display suitable for operation to 4000 metres. The unit can log multiple pressure, flow and temperature inputs, display real time readings on the integral display and store millions of readings in non volatile memory.
For this project we supplied a subsea logging unit to measure and log load, depth and 3D motion of a payload as it was lowered to the seabed from a topside vessel mounted crane. A second logger was also fitted on the crane to record the motion of the crane tip, with data synchronised with the subsea load data.
Subsea Vibration and Acceleration Logger
This system was used to monitor vibration and acceleration on a subsea wave energy generator, logging readings at 1600 samples per second.