H&b Sensors Ltd - Temperature Sensors

H&b Sensors is a leading UK manufacturer of temperature sensors, thermowells, level float switches and miniature heaters.

We specialise in custom-made assemblies, including ATEX Exia, ATEX Exd and IECEx Exd certified hazardous area equipment, for primary industries.

Exporting worldwide, our ISO 9001:2008 certified management system ensures high quality product, improved performance and efficiency. 

H&b Sensors manufacture both mineral insulated and fabricated platinum resistance thermometers (PRTs). Available options include Pt10, Pt100, Pt130, Pt500 and Pt1000 detectors available in 1/10 DIN, 1/5 DIN, 1/3 DIN, Class A and Class B accuracy's. 

H&b Sensors manufacture both class 1 and class 2 mineral insulated, fabricated and bare wire thermocouples suitable for temperature ranges between -250°C and +1300°C. Options include thermocouple type (Type J, Type K, Type T, Type E, Type N, Type R and Type S), colour codes (BS, ANSI, DIN and IEC). 

H&b Sensors manufacture a wide range of Exd (explosion proof) and Exia (intrinsically safe) products for use in hazardous areas and harsh environments.

Exd certification is available for both temperature measurement and level detection assemblies conforming to both ATEX and IECEx standards. Using either our aluminium or stainless steel Type 50 series connection head, a variety of different assembly configurations are available.

Exia certified temperature assemblies conforming to ATEX are available using both our Type 50 series and Type 11 connection heads.  

H&b Sensors manufacture a comprehensive range of solid drilled thermowells, fabricated thermowells and forged thermowells.

A wide selection of thermowell configurations are available including screwed, flanged, welded or hygienic process attachments complete with a wide variety of extension pieces and additional options. Solid drilled thermowells as standard include 3.1 material certificates and internal pressure test. Fabricated thermowells include 3.1 material certificates and a leak test.

Additional Testing is available including: wake frequency (Murdock or ASME PTC 19.3 TW-2010), dye penetrant, x-ray, positive material identification (PMI), heat treatment, magnetic particle inspection, oxygen cleaning, ultrasonic and charpy impact testing.  

Mounting Style: Every Angle, Vertical, Co-axial / Dial Size: 100mm ∅, 130mm ∅, 160mm ∅ / Case Material: 304 or 316 Stainless Steel, IP65 / Window: Standard Instrument Glass, Toughened Glass, Perspex / Stem Material: 316 Stainless Steel / Stem Diameter: 6.0mm ∅, 6.3mm ∅, 8.0mm ∅, 12.7mm ∅ / Maximum Stem Lengths: 6.0mm ∅ and 6.3mm ∅ = 500mm, 8.0mm ∅ = 1000mm, 12.7mm ∅ = 1500mm / Accuracy: Class 1 (±1% FSD) / External Zero Adjustment

Body and Wetted Parts: 316 Stainless Steel as standard, Weatherproof rated IP65 / Sensor: Pt100 Class A / Output: 4...20 mA / Accuracy: ±0.25% / Stability: ±0.02% / °C / Connection: 1/2" BSP as standard / Stem Length: 30mm minimum / Temperature Range: -20°C to +250°C / CE Approval: BS EN61326 / Ambient Temperature Limits: +70°C 

H&b Sensors offer a wide selection of temperature transmitters including head mounted and DIN rail mounted solutions suitable for both platinum resistance thermometers (PRTs) and thermocouples. Options include ATEX Exia and SIL2 certification, HART® and Profibus® communications. 

H&b Sensors offer a selection of head mounted and panel mounted displays. Options include loop powered, battery powered or AC/DC supply, ATEX Exia certification and HART® communication. 

H&b Sensors manufacture a wide range of ATEX Exd certified 316 stainless steel compression fittings suitable for either a 3mm, 4.5mm or 6mm bore Ø .  Thread sizes include 1/4" BSP, 1/4" BSPT, 1/4" NPT, 1/2" BSP, 1/2" BSPT, 1/2" NPT, 3/4" BSP, 3/4" BSPT, 3/4" NPT, 1" BSP, 1" BSPT, 1" NPT, M16 x 1.5 and M20 x 1.5.  

H&b Sensors manufacture a variety of level float switches to customer specification.

Float switches are efficient level detectors, simple to install, and designed for trouble free operation over a long period.

Configurations include threaded or flanged process connections, number of floats and float style, Exd certification, and incorporation of temperature sensor or switch.  

H&b Sensors manufacture a select range of high temperature nickel and inconel® sheathed miniature heaters with operating temperatures of up to 900°C. The heaters are designed for use in applications where size, high reliability and long life are important. 

Material: Stainless Steel, Hastelloy®, Monel® and Titanium / Bore Profile: Concentric, Eccentric,, Multi-Hole and Segmental / Calculations: Standard calculations are to BS 1042 or ISO 5167 / Pipe Size: Suitable for 1/2” to 12” lines / Options: Vent Holes, Drain Holes, Special Coatings, Carrier Plates and Flanges 

H&b Sensors offer a comprehensive range pressure products including gauges, transmitters and switches. Options include gauge type, pressure and vaccuum ranges, process connection, and certification.