RTD Temperature Sensors for Food, Dairy and Pharmaceutical / BioTech Industry - OVERVIEW

RTD Temperature Sensors for Food, Dairy and Pharmaceutical / BioTech Industry - OVERVIEW
by Pyromation

(FD01) Water-Tight CIP RTD Assemblies w/Optional Series 450 Integral Transmitters:

The Water-Tight CIP RTD Assembly houses an optional integral Series 450 Temperature Transmitter (no connection head is required) that is ideal for monitoring temperature in small areas such as tanks and pipes. The water-tight construction meets NEMA 6P requirements. Assemblies are supplied with a surface finish that meets or exceeds 32µin Ra. Surface finishes of 15µin Ra or better are available upon request. Standard units include a M12 process connection housing. The transmitter is a 2-wire unit with an analog output. It has measurement input for Pt100 resistance thermometers (RTD) in 4-wire connections. Transmitters can range from (-51 to 160) ºC [-60 to 320] ºF with a 10 ºC [18 ºF] minimum span requirement. Ambient temperature limits for the M12 connector are (-40 to 85) °C.CIP Sanitary-Connected RTDs

(FD02) CIP Sanitary-Connected RTDs:

General-purpose CIP sanitary-connected RTD temperature sensors are used in food, dairy, beverage, pharmaceutical, and chemical processing applications where sensor corrosion and product contamination are critical factors. The sanitary caps listed are those most commonly used in such processes. Sanitary caps are welded to the sheath and to a heavier support tube, all made of stainless steel, and then ground and polished to a finish that exceeds the No. 4 minimum finish required by the 3-A Sanitary Standard 74 - . Assemblies are supplied with a surface finish that meets or exceeds 32µin Ra. Surface finishes of 15µin Ra or better are available upon request. The process contact surfaces are free of pits, crevices, and pockets, thus preventing corrosion and bacteria growth. The 3-wire sensor assembly consists of a high-accuracy platinum element sealed inside a 316 stainless steel sheath and is provided with an FDA-compliant white thermoplastic gasket connecting head. The complete assembly provides excellent wash-down protection. It is recommended that once customer connections are made, the connecting terminals be further protected by applying a coating of moisture-proof sealant over the connections.(FD03) RTDs w/CIP Sanitary-Connected Wells

(FD03) RTDs w/CIP Sanitary-Connected Wells:

These RTD sensors are constructed with the CIP sanitary-connected cap thermowell, which is then mounted into the process with a clamp and mating sanitary cap. A 3-wire spring-loaded RTD element and sheath are then screwed into the back of the thermowell. This construction method allows for easy removal of both the well and/or the sensor assembly. The well and sanitary cap in contact with the process are all ground and polished to a finish that exceeds the 3-A Sanitary Standard 74- . Thermowells are supplied with a surface finish that meets or exceeds 32µin Ra. Surface finishes of 15µin Ra or better are available upon request.

(FD04) Miniature Sanitary CIP RTD Sensors:

Miniature CIP sanitary RTD temperature sensors are provided with 16AMP sanitary caps to fit 1/2" and 3/4" tube-size sanitary fittings. They are used in pharmaceutical, chemical, biotech, R & D laboratory, and food processing applications. The sanitary caps are welded to the sheath, all made of 316 stainless steel, and then ground and polished to a finish that exceeds the No. 4 minimum finish required by the 3-A Sanitary Standard 74- . Assemblies are supplied with a surface finish that meets or exceeds 15µin Ra. The process contact surfaces are free of pits, crevices, and pockets, thus preventing corrosion and bacteria growth. All leads are fluoropolymer-insulated to further provide moisture and chemical resistance. The listed sheath lengths provide assurance that the sensing element is properly placed in the flowing medium when used with typical sanitary tees and tube fittings, and the small sheath diameter provides fast temperature response times.

(FD05) Thermometer Replacement RTDs:

Thermometer replacement RTD temperature sensor assemblies are used when converting instrumentation from older direct reading thermometers to electronic instruments requiring RTD inputs. These RTD assemblies replace the filled system capillary actuating bulbs and will fit into the old existing bulb wells, as listed below. These 3-wire sensor assemblies consist of a high-accuracy platinum element sealed inside a spring-loaded 316 stainless steel sheath and are supplied with a FDA-compliant white thermoplastic gasket head. Each sensor is supplied with a free-rotating stainless steel mounting fitting with the appropriate threading for the wells listed in this section.

(FD06) Weld-In RTD Assemblies:

The Weld-In RTD temperature sensor assemblies listed are commonly used in the food, dairy, beverage, pharmaceutical, and chemical processing industries. The complete assemblies are provided with a 3-wire platinum RTD element sealed inside a 1/4" O.D., spring-loaded, stainless steel sheath, and a heavy wall sanitary protection well. Thermowells are supplied with a surface finish that meets or exceeds 32µin Ra. Surface finishes of 15µin Ra or better are available upon request. The well is to be welded into a tank or vat with a full crevice-free fillet-weld to prevent corrosion, bacteria growth, and product contamination. Assemblies are provided with an FDA-compliant white thermoplastic gasketted connection head. The complete assembly provides excellent wash-down protection.