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All Star Bi-Metal Thermometers

Brand: Palmer Wahl Instruments, Inc
Palmer’s experience in the thermometer field enables us to offer a line of Bimetal Dial Thermometers with the design, quality and craftsmanship that make our bimetal thermometers an industry standard for rugged reliability and consistent accuracy.
Features
Rugged Design Features

  • All 316 Stainless Steel Case with 304SS Fitting and Stem in Fixed Center Back Connected or versatile All Angle case with easy adjustability for the optimal viewing angle.
  • Glass Lens in a quick-lock, cam-action bezel ring with heavy duty, heat-resistant hermetically sealed gasket seals out moisture to prevent lens icing or fogging and bimetal coil freeze-up in extreme conditions.
  • Built-in over-range protection and adjustable pointer are standard.
Easy-To-Read 3" or 5" Dial

  • Specially fabricated of low-glare finished metal using a deep draw design for anti-parallax alignment of pointer to graduation marks.
  • Dial can be seen from a greater distance and from more angles than mercury-in-glass thermometers.
  • High-visibility numerals and graduations on a low-glare background with graduations and pointer on the same surface level help minimize reading errors.
Fast Response

  • Superior heat transfer characteristics, fast response, and consistent repeatability are achieved through the use of a high-torque, low mass bimetal sensing element.
  • Materials and design combine to convert the sensor’s movement quickly and accurately into a dial reading. Ambient temperature changes at the case will not affect accuracy.
Adjustable Union Fitting

  • Optional Adjustable Union easily adjusts the stem to the full depth of your thermowell for metal to metal tip contact, giving maximum exposure to your process. Eliminates the need to stock several different stem lengths.
  • Optional 316 Stainless Steel Fitting and Stem can be chosen for deep water drillers and offshore rigs, resists the harsh environmental conditions of outdoor use.
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Palmer’s experience in the thermometer field enables us to offer a line of Bimetal Dial Thermometers with the design, quality and craftsmanship that make our bimetal thermometers an industry standard for rugged reliability and consistent accuracy.
Features
Rugged Design Features

  • All 316 Stainless Steel Case with 304SS Fitting and Stem in Fixed Center Back Connected or versatile All Angle case with easy adjustability for the optimal viewing angle.
  • Glass Lens in a quick-lock, cam-action bezel ring with heavy duty, heat-resistant hermetically sealed gasket seals out moisture to prevent lens icing or fogging and bimetal coil freeze-up in extreme conditions.
  • Built-in over-range protection and adjustable pointer are standard.
Easy-To-Read 3" or 5" Dial

  • Specially fabricated of low-glare finished metal using a deep draw design for anti-parallax alignment of pointer to graduation marks.
  • Dial can be seen from a greater distance and from more angles than mercury-in-glass thermometers.
  • High-visibility numerals and graduations on a low-glare background with graduations and pointer on the same surface level help minimize reading errors.
Fast Response

  • Superior heat transfer characteristics, fast response, and consistent repeatability are achieved through the use of a high-torque, low mass bimetal sensing element.
  • Materials and design combine to convert the sensor’s movement quickly and accurately into a dial reading. Ambient temperature changes at the case will not affect accuracy.
Adjustable Union Fitting

  • Optional Adjustable Union easily adjusts the stem to the full depth of your thermowell for metal to metal tip contact, giving maximum exposure to your process. Eliminates the need to stock several different stem lengths.
  • Optional 316 Stainless Steel Fitting and Stem can be chosen for deep water drillers and offshore rigs, resists the harsh environmental conditions of outdoor use.

Specifications

All Angle

  • 3AES and 5AES - All Angle Connected Case

Fixed Back Connected

  • 3BES and 5BES - Fixed Center Back Connected Case

Case

  • Polished-Type 316 Stainless Steel case and bezel in 3” (3-5/16 inch, 84 mm actual) or 5” (5-1/16 inch, 129 mm actual) Size. Hermetically sealed cases

Element

  • Single helix bimetallic coil sensing element (with silicone gel coated coil for ranges below 500° F), located in bottom 2-1/2 inches of thermometer stem

Dial Face

  • Black graduations and numerals on white background. Anti-parallax dial design linear scale with high-visibility tapered-tip black pointer

Lens

  • Shatter-Resistant plexiglass

Fitting

  • One Piece Solid Bar Stock, 3A15 Sanitary Fitting, 316 Stainless Steel. Tri-Clamp sizes: 1-1/2”, 2”, or 3”

Stem

  • Polished-Type 304 Stainless Steel. All welded. 5/16” Diameter

Stem Lengths

  • Standard length: 2.5 inches (63.5 mm), 4.5 inches (114.3 mm), 6 inches (152 mm) and 9 inches (229 mm). Same immersion as sanitary thermowell

Recalibration

  • Adjustable pointer

Over-Range

  • Protected design allows temporary swings of up to 50 % of Range without permanent damage to thermometer

Accuracy

  • ASME B-40.3 Grade A, ± 1 % of Full Scale. Ambient temperature changes at the case will not affect accuracy

Applications

  • Chemical and Petrochemical
  • Compressor Controls
  • Deep Water Drilling
  • Hazardous Environments
  • Offshore Rigs
  • Process Engineering
  • Pulp and Paper Industry
  • Pneumatics
  • Pump Protection
  • Shipping
  • Water Treatment Systems

Documentation