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1742 Orbit Way
Minden, NV, 89423
United States

(775)782-1026

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Caisson Gauges

IDEAL FOR USE IN HYPERBARIC CHAMBERS

Advantages

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.

Features a knife-edged pointer for precision readings. Calibration certificate included.

TRUSTED ACCURACY

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

 

TYPICAL APPLICATIONS

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.

  • Hyperbaric chambers

  • Decompression chambers and more...

ACCURACY

  • ±0.25% of F.S. (Grade 3A)

For details see accuracy specs page

RANGE AVAILABLITY

  • 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

OPERATING TEMPERATURE

Media Temperature: -65°F to 250°F

Ambient Temperature: -65°F to 190°F

CASE CONFIGURATIONS

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

QUALITY MATERIALS

Wetted Parts:

  • Inconel X-750

  • 300-series SS

  • Silver Braze

Connection Material: 316 Stainless Steel

Window Construction:

  • Acrylic

  • Tempered Glass available

Dial Construction:

  • Stainless Steel Material, Powder Coated Finish

  • White Background, Black Markings, Black Pointer

OTHER SPECIFICATIONS

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