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Series-BT
Bimetal Thermometers for Chillers & Boilers – Stainless Steel, Sealed
- Hermetically sealed
- Adjustable dial position models
Series-BT
From
TWD
2,102
Product Overview
- Accuracy ± 1 %
- Applications Boilers, Oil, Refrigeration, Refrigeration Equipment
- Dual Range Yes
- Immersion Depth 2 in
- Materials 300 Stainless Steel, Glass
- Materials, Wetted 304 Stainless Steel
- Operating Temperature, Max 200 °F
- Process Connection Type NPT Male
- Response Time ≤40 s
- Series ID Series-BT
- Stem Diameter 0.25 in
Supported Applications
The Dwyer Series BT Bimetal Thermometers are designed for accurate, reliable temperature measurement in demanding environments. These hermetically sealed units feature corrosion-resistant construction to prevent crystal fogging and maintain readability.
Operating Conditions & Performance
Performance specifications define the operational envelope of the series:
- Accuracy: ±1% FS
- Response Time: < 40 s
- Temperature Limits - Head: 200°F (93°C)
- Temperature Limits - Stem: Not to exceed 50% over-range or 1000°F (538°C) or 800°F (427°C) continuously
- Immersion Depth: Minimum 2" in liquids, 4" in gas
The series supports multiple measurement ranges including 0 to 250 (-20 to 120), 200 to 1000 (100 to 550), 0 to 200 (-20 to 100), and 50 to 550 (10 to 290) °F (°C).
Configuration Options
The Series BT offers configurable dimensions, connections, and mounting options tailored to specific installation requirements.
Housing & Materials
- Housing Material: Series 300 SS
- Wetted Materials: 304 SS
- Lens: Glass
- Dial Sizes: Available in 2", 3", and 5" configurations.
Process Connections & Mounting
- Stem Diameter: 1/4" OD
- Connection Types: Back, Lower, or Adjustable mounting orientations are available depending on the model.
- NPT Threads: 1/4" NPT on 2" dial size; 1/2" NPT on 3" or 5" dial size.
Scales & Graduations
Degree divisions vary by range, with options including 2 (2), 5 (5), and 10 (5) °F (°C). Note that specific models are offered in Fahrenheit scale only.
Key Product Differences
Variants within the Series BT differ primarily by dial size, stem length, connection orientation, and temperature range. Model numbers follow a structured guide: BT - <Dial Size> - <Stem Length> - <Connection> - <Range °F (°C)> - <Degree Div °F (°C)>.
- Dial Sizes: 2", 3", and 5" dials are offered.
- Stem Lengths: Options include 2-1/2", 4", and 6" lengths.
- Mounting Orientation: Models feature Back, Lower, or Adjustable connections to suit different panel or vessel installations.
