The HSRTD Series Flexible RTD Temperature Sensor Probes are hermetically sealed at the sensor tip to provide continuous protection at the temperature measurement junction. The flexible sensor probe PFA cable forms a hermetic seal and electrically isolates the small RTD sensor, suited to a variety of applications.
For a hermetically sealed Thermocouple sensor, see the HSTC
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† All amounts shown in USD Note: Options: Sensors come with stripped leads standard. For custom cable lengths greater than 6 m (240"), change the “-240” variable at the end of the model number to desired length in inches and add $2.25 per additional foot to the price. For miniature connectors add “-MTP” to the end of the model number and add $7 to price. For a 4-wire audio connector, add “-TA4F” to model number and add $17 to price. (OPTIONS SHOWN IN THIS "NOTE" ABOVE ARE PRICED IN US$) Ordering Example: (1) HSRTD-3-100-B-40-E 100 Ohm, 4 Wire, Class “B” element with 40'' of cable, $53.46
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Resistance select from: A for Class A Resistance B for Class B Resistance
Wire Length select from: 40 for 1 m (40 in) 80 for 2 m (80 in) 120 for 3 m (120 in) 180 for 4.5 m (180 in) 240 for 6 m (240 in)
Miniature and Audo Connector select from: Nothing(leave field blank) for None -MTP for Miniature Connectors -TA4F for Audio Connector
Note: All combinations may not be valid, check spec sheet for valid part numbers.
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Resistant to magnetic flux changeI have probably purchased 30 of these over the last 5 years. They perform much better than bimetallic thermocouples for reading temperature in magnetic induction applications. The durability is good, but not outstanding in harsh environments, especially in steam at temperatures greater than 120°C (thus the purchase of 30 over the last 5 years). Their response is faster than metal clad RTDs. The rapid response allows for more contained PID controll. It would be wonderful if Omega made a steam-tolerant packing gland for the RTD where the RTD tip was not in contact with a metal (as is the case in a thermowell).