Bimetal Dial Thermometer

BDT

Features


The Bimetal thermometer employs a bimetal strip in the form of helix (it works on the principle of thermal expansion - two metals having different coefficient of expansions are joined to form a bimetal. The resultant expansion of bimetal is proportional to temperature). Bimetal dial thermometers are simple in construction, yet rugged. They are used for measurement of temperature in most of the industrial o applications. They are offered in the range of (-)50 C to 600 C. With rigid stem having bottom or back entry. It can also be offered in every angle rotatable construction.

  • Rugged construction
  • Bottom / Back entry, every angle construction
  • Fast response
  • Protection class IP-67
  • Accuracy ± 1% FSD
  • High repeatability, low hysteresis
  • Hermetically sealed case


  • Specifications
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Specifications
Ref. Standard ASME B 40.200, EN 13190
Dial 100 mm or 150 mm in aluminium white background,
black markings
Case SS304 with bayonet bezel / SS316 optional
Protection Weatherproof to IP - 67 (IS/IEC :60947 / IEC : 60529)
Window Shatterproof glass
Pointer Aluminium, black, micrometer adjustable
Stem SS304 or SS316 in 6 mm, 8 mm, 10 mm, 12 mm dia and
length from 100 mm to 1000 mm as standard
Connection ½" NPT (M) as standard in SS304 or SS316
adjustable three piece compression fitting
Range (-) 50 C to 600 C with a minimum span of 60 C
Accuracy ± 1% FSD
Over range 125% FSD (upto max temp range of 500°C )
Reset Micrometer Pointer (standard)
External (optional)
Optional 1) Silicon Oil Filled Case (Suitable upto 339 C Max)

2) Contacts: Single SPST, normally open to close on rise / fall in temperature (specify action required) adjustable over the entire range, rating 30 VA @ 230 V AC (100 mm dial, back entry only )
Note 1) For minimum insertion length essential for proper
sensing, contact our design department

2) Three point calibration certificate accompanies each
thermometer.