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Data Sheet (PDF)

R400 Ruthenium-Oxide Temperature Sensor

Specifications

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Electrical  
Temperature Range 2.0K to 273K. High sensitivity below 40K, monotonic to 273K
Interchangeability Conforms to the Cryo-con R400 standard curve without special calibrations.
Excitation Constant-Voltage AC excitation of 1.0V or less for full temperature range.
Constant-Current DC excitation of 10µA for operation above 3.0K.
Ionizing Radiation Low susceptability to ionizing radiation.
Typical Response
2.0K 239K Ohms -17K Ohms/K
4.2K 205K Ohms -11K Ohms/K
20.0K 139K Ohms -1.4K Ohms/K
77.35K 112K Ohms -162 Ohms/K
273K 101K Ohms -18 Ohms/K
Use in magnetic fields Extremely low. Useful in magnetic fields to 16T with a small but predictable temperature shift.
Accuracy  
Band A 4.2K: ±100mK
77K: ±750mK
273K: ±20.0K
Uncalibrated 4.2K: ±300mK
Canister Package  
Physical 0.200" x 0.095" cylendar.
Material Gold plated Oxygen Free Hard Copper (OFHC).
Bonding Stycast® epoxy.
Leads 36 inch, 36AWG Phosphor-Bronze. Four-lead color coded cryogenic ribbon cable.
   Insulation: Formvar®. Lead bonding is Butyl.
Mounting Install into a 0.101" diameter hole. Place a small amount of Apiezon® N grease
  in the hole beforeinserting the sensor.
CalGen™ and Cryo-Con™ are registered trademarks of Cryogenic Control Systems, Inc. All other product and company names are trademarks
or trade names of their respective companies.
Tel: (858) 756 3900   Fax: (858) 759 3515   
Specifications subject to change without notice. ©Cryogenic Control Systems, Inc. 1998 - 2008.