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IMCA D 018 Examination & Testing Guidance
Dimensional Drawing

Direct Drive Caisson Gauge - 4.5", 6", 8.5" & 12" Diameter

4.5", 6", 8.5" & 12"  diameter premium design caisson pressure gauge for mounting inside hyperbaric chambers, caissons, living chambers & decompression chambers; used for measuring the simulated depth (pressure) inside the chamber or used to measure the pressure within a pressure system operating inside the chamber.

The gauge is designed to be surface or panel mounted within the chamber and is constructed around the workings of a conventional bourdon tube pressure gauge. This design allows the instrument to be bench calibrated in a similar fashion to other oxygen cleaned bourdon tube pressure gauges.

This premium design caisson gauge features a large internally sealed brass encapsulated pressure reference chamber. This design of caisson gauge is supplied with either a 1/4" or 1/2" NPT male process connection which is left open to the atmosphere within the chamber when chamber pressure is to be measured.

 Alternatively connection can be made to a separate pressure system within the chamber such as bottled gas or hydraulic lines etc if the pressure within these systems needs to be monitored.

This gauge also features zero adjustment of the pointer through the front window as standard and can be constructed in black, green, red or yellow ABS case.

As this gauge is manufactured in the USA, please note factory calibration will be to ANSI/NCSL Z540-1

This gauge conforms to the IMCA (International Marine Contractors Association) Diving Division Detailed Sheet Number 18 as per the IMCA Code of Practice on The Initial & Periodic Examination, Testing & Certification of Diving Plant & Equipment.