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Series BT Bi-Metal Thermometer

Brand: Dwyer Instruments, LLC

The Series BT Bimetal Thermometers offer accurate, reliable service even in the toughest environments.

These corrosion resistant units are constructed from stainless steel and are hermetically sealed to prevent crystal fogging. The bimetal element directly drives pointer, eliminating gears and linkage. 

An external reset screw allows field calibration and easy-to-read aluminum dial minimizes parallax error. Choose back connection, lower connection or adjustable angle for easy viewing and installation. Adjustable models can be rotated a full 360° and tilted over a 180° arc.

NOTE: When using in pressurized applications, use a suitable thermowell.
Features
  • Hermetically Sealed
  • Adjustable Dial Position Models

1 - 12 of 20 Part Numbers
BTA
BTA
  • Connection - Adjustable
  • Stem Length - 4"
  • Temperature Range - -20° to 120° C (0° to 250° F)
BTA54010D
BTA54010D
  • Connection - Adjustable
  • Dial Size - 5"
  • Stem Length - 4"
  • Temperature Range - -20° to 100° C (0° to 200° F)
BTA5405D
BTA5405D
  • Connection - Adjustable
  • Dial Size - 5"
  • Stem Length - 4"
  • Temperature Range - -20° to 120° C (0° to 250° F)
BTA5407D
BTA5407D
  • Connection - Adjustable
  • Dial Size - 5"
  • Stem Length - 4"
  • Temperature Range - 10° to 290° C (50° to 550° F)
BTA56010D
BTA56010D
  • Connection - Adjustable
  • Dial Size - 5"
  • Stem Length - 6"
  • Temperature Range - -20° to 100° C (0° to 200° F)
BTA5605D
BTA5605D
  • Connection - Adjustable
  • Dial Size - 5"
  • Stem Length - 6"
  • Temperature Range - -20° to 120° C (0° to 250° F)
BTA5607D
BTA5607D
  • Connection - Adjustable
  • Dial Size - 5"
  • Stem Length - 6"
  • Temperature Range - 10° to 290° C (50° to 550° F)
BTB
BTB
  • Connection - Back
  • Dial Size - 2"
  • Stem Length - 4"
BTB22551
BTB22551
DWYER Bimetal Thermometer, 2" Dial, 2-1/2" Stem Length, Range 0°/250°F, 2°F Div.
  • Connection - Back
  • Dial Size - 2"
  • Stem Length - 2-1/2"
  • Temperature Range - 0° to 250° F
BTB2405D
BTB2405D
DWYER Bimetal Thermometer, 2" Dial, 4" Stem Length, Range 0°/250°F (-20°/120°C), 2°F (2°C) Div.
  • Connection - Back
  • Dial Size - 2"
  • Stem Length - 4"
  • Temperature Range - -20° to 120° C (0° to 250° F)
BTB2409D
BTB2409D
DWYER Bimetal Thermometer, 2" Dial, 4" Stem Length, Range 200°/1000°F (100°/550°C), 10°F (5°C) Div.
  • Connection - Back
  • Dial Size - 2"
  • Stem Length - 4"
  • Temperature Range - 100° to 550° C (200° to 1,000° F)
BTB32510D
BTB32510D
DWYER Bimetal Thermometer, 3" Dial, 2-1/2" Stem Length, Range 0°/200°F (-20°/100°C), 2°F (2°C) Div.
  • Connection - Back
  • Dial Size - 3"
  • Stem Length - 2-1/2"
  • Temperature Range - -20° to 100° C (0° to 200° F)
1 - 12 of 20 Part Numbers

Specifications

Accuracy

  • ± 1 % of Full Scale

Enclosure, Body Material

  • 300 Stainless Steel

Insertion 'U' Length

  • 2” (5 cm)
  • 4” (10.1 cm)

Lens

  • Glass Lens

NPT Connection

  • 1/2” NPT Male
  • 1/4” NPT Male

Operating Temperature

  • 427° C (800° F) - Stem (Continuously)
  • 538° C (1000° F) - Stem (Not to Exceed 50 % Over-Range)
  • 93° C (200° F) - Head

Response Time

  • ≤ 40 seconds

Sensor / Probe Diameter

  • 1/4” O.D.

Size

  • Dial: 2”
  • Dial: 3”
  • Dial: 5”

Stem Length

  • 2-1/2” (6.35 cm)
  • 4” (10.2 cm)
  • 6” (15.2 cm)

Style

  • Adjustable Angle
  • Back Connect
  • Lower Connect

Temperature Range

  • -20° to 550° C (0° to 1,000° F)

Wetted Materials

  • 304 Stainless Steel

  • Chiller or Boiler Water Temperature Monitoring
  • Treatment Plant Temperature Monitoring

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