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Calibrations (Accredited laboratory) Maintenance - Repairs Department of Cleanroom Validation (Lloyd's Register Certified)) IQ/OQ/PQ Temperature/ Humidity Mapping Occupational Health & Safety Measurements Validation Studies Vibration and Noise studies Laboratory OrganizationBT Series
BT Series
Bimetal Thermometers
TECHNICAL SPECIFICATIONS
• Execution
- B and S
• Nominal sizes
- 100 and 150 execution B;
- 80,100,125 and 150 execution S.
• Casing
- case and ring in AISI 304 stainless steel (AISI 316 on request - option V61) with bayonet bezel.
• Protection degree (according to EN 60529)
- IP 55 for dry execution;
- IP 65 (option V66 and V72).
• Window
- glass for dry execution;
- laminated safety glass for liquid filled execution or on request (option V17).
• Thermometric element
- bimetal spiral.
• Ranges (according to EN 13190)
o Graduation:
- 0 ÷ 60; 0 ÷ 100; 0 ÷ 120; 0 ÷ 160; 0 ÷ 200; 0 ÷ 250; 0 ÷ 300; 0 ÷ 400; 0 ÷ 500; -50 ÷ +50 ; -40 ÷ +60; -20 ÷ +40; -20 ÷ +100; (divisions as per table C2 at page P.08)
- other graduations not normalized for single or double range (on request).
o Unit of temperature:
- °C (Celsius) and °F (Fahrenheit) for single or double range.
o Scale angle:
- 270 °.
• Working temperatures (referred to full scale value)
- from 1/10 to 9/10.
• Over-temperatures (occasionally allowed)
- 115% of full scale value.
• Pointer
- aluminium with micrometer adjustement.
• Dial
- white aluminium with black figures (for dial modifications see available options).
• Accuracy (according to EN 13190)
- class 1.
• Sensitive stem
- see page BT04 and BT06.
note: instruments are manufactured with G8 (fixed) or G9 (sliding) connection also suitable for an eventual thermowell connection.
• Thermowell
(see pages PZ01,PZ02 and PZ03)
- built-up from pipe - P2 and P4 type;
- drilled from solid bar stock - P3 and P5 type (dimensions and materials are decided by customer).