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PLATINUM RESISTANCE THERMOMETER
Model 935 Standard Platinum Resistance Thermometer.

Model 935-14-77 Standard Platinum Resistance Thermometer. Temperature range -50°C to 670°C.
Model 935-14-77 SPRT, is the metallic sheathed version of the Model 909, the workhorse of calibration laboratories all over the world.
The resistance element is of pure platinum, coiled and mounted in a strain free construction.
The former is of pure alumina material and all parts have been pre-aged to eliminate contamination and strain.

 
 

All joints are welded to minimize resistance
changes.
The leads are brought to a handle assembly
where they are connected to a low loss cable,
6 feet long and screened.
The thermometer sheath is of metallic material
which is filled with dry air during construction.
It is available in a standard length of 450mm.

For price and info please email sales@hotektech.com or call 253-927-6186

Related Instruments Temperature Probes
Thermocouple Referencing
Thermometers
Temperature Bridges
Temperature Calibrators

The model 935-14-77 is supplied with a calibration certificate giving RTPW and Wga,
plus a comprehensive handbook.
For transportation and storage the SPRT is supplied in its own attractive carrying case.
Please Note:
The incanol sheath ensures that the 935-14-77 will not break. However, internally it has the same construction as a
standard platinum resistance thermometer and must be handled accordingly.

Model 935-14-77
Measuring Range -50°C to 670°C
Nominal Resistance 25.5Ω at 0°C
Recommended
Maximum Current
1mA
Nominal Sensitivity 0.1Ω/°C
Resistance Ratio Wga ≥ 1.11807 as required by ITS-90
Self-Heating 1mK/25 microwatts
Sealed-In Gas Dry air
Stability Depends upon the temperature range of
use. Typical annual stability, see table above
Internal Leads 4 wire-platinum
External Leads Silver-plated multistrand wires in a
low-loss insulation cable terminating
in gold-plated terminals.
Length 450mm
Nominal Diameter 6mm

Please email sales@hotektech.com or call 253-927-6186 if you are interested in a purchase, or
  need additional information.

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