Standard Platinum Resistance Thermometers.
SPRT. Temperature Range: -200°C to 670°C
Model 670 Standard Platinum Resistance Thermometer construction permits the four
internal platinum lead wires to expand and contract in the same manner as those of
silver-point thermometers.
Model 909-25.5 Standard Platinum Resistance Thermometer.
Temperature range of -196°C to 670°C
Model 909-100 Standard Platinum Resistance Thermometer.
Temperature range of -196°C to 550°C
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.
Temperature range from -196°C to 670°C.
Semi-standard PRTs are typically made in stainless steel sheaths which are
6mm in diameter, and have an Ro value of 100 ohms and an alpha [(R100-Ro)/Ro]
of 0.00385.
Temperature ranges from -196°C to 670°C.
Temperature Standard. Platinum Resistance Thermometers (PRT's) for use in every
application from standards calibration to site temperature measurement.