IDEAL FOR USE IN HYPERBARIC CHAMBERS
Endurance and Repeatability
Inconel X-750 + Helical Bourdon Tube = DURABILITY
An Inconel X-750, Gearless, Helical Bourdon Tube provides repeated cycling without fatigue. Additionally, no linkages, springs or gears means there are no mechanical components to wear or break.
Accuracy is 25% less affected by temperature fluctuations.
Inconel Elastic Element = Low Coefficient of Thermal Expansion
Inconel in combination with a low internal volume means that the impact of temperature on accuracy is significantly less than competitors using a Stainless Steel Bourdon Tube.
USA Parts, USA Made, USA Owned
Manufactured in Minden, NV using only American made parts. Manufacturing processes not completed in house are outsourced to support local small businesses.
LIFETIME Limited Warranty
Lifetime warranty that the Bourdon tube will not malfunction due to wear.
1 year from delivery or 18 months from date of manufacture against defects in materials and workmanship.
Caisson Gauge Specs
Perma-Cal® caisson gauges incorporate a Helical Bourdon Tube sealed within a capsule.
Unlike standard pressure gauges which indicate the pressure relative to the ambient environment, Caisson Gauges indicate the pressure relative to the pressure within the capsule.
Decompression chambers and more...
±0.25% of F.S. (Grade 3A)
For details see accuracy specs page
250 to 3,500 FSW (or equivalent)
Single Scale: FSW
Dual Scale: MSW | FSW
Customization available (range, units, logo, etc.)
See dial availability chart for list of standard ranges
Media Temperature: -65°F to 250°F
Ambient Temperature: -65°F to 190°F
Materials: ABS (acrylonitrile butadiene styrene)
Sizes, Types and Colors:
6", 8.5" Dial
Front Flange, No Flange, Rear Flange
Black, Blue, Green, Red, White, Yellow
Solid Front Case Design
Connection Material: 316 Stainless Steel
Tempered Glass available
Stainless Steel Material, Powder Coated Finish
White Background, Black Markings, Black Pointer
Cleaned for oxygen use
Burst Pressure: 500% F.S. pressure or 25,000 psi
Proof Pressure (over-pressure w/o calibration shift):
150% of F.S. pressure