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.

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.