standard platinum reference thermometer SPRT

At CasCade Automation Systems B.V. we deliver a very diverse scope of platinum resistance thermometers (PRTs) of the company AccuMac. These can be used for the calibration of reference standards which in turn are used for the calibration of measurement equipment.

Standard Platinum Resistance Thermometers (SPRTs) are used to interpolate temperature in the range of -189.3442°C to 660.323°C on the international temperature scale of 1990 (ITS-90). They are widely used as standard or reference thermometers for calibration of other thermometers and to measure temperature very accurately in primary and secondary laboratories. The AM1950 and AM1960 SPRTs are the crown juwels under the AccuMac temperature sensors. Tens of years of scientific knowledge and craftmanship are necessary to produce these world-class products. They have a very low drift. The measurement element and the sensor are fitted with a special support. All parts are intensively cleaned before mounting to prevent contamination on the platinum measurement wires at high temperature. Also during the mounting care is taken that the sensor will not be contaminated. A special gas mix in the thermometer prevents oxidation of the sensor wires as much as possible. Every SPRT is fully tested for stability after fabrication. These world-class sensors comply to the ITS-90 criteria for standard thermometers. Yet they are competitively priced.

Reference standard S-type thermocouple

AM1210 type S reference standard

Affordable reference standard
Type S
Short term stability +/-0.2°C at 1084.62°C
Temperature range 0°C to 1300°C

– Brochure AM1210

Platinum Resistance Thermometers (PRTs)

AM1730 secondary reference PRT

Affordable reference sensor
Accuracy +/-0.015°C at 0.01°C
Temperature range -200°C to 420°C
Dimensions can be specified

– Brochure AM1730

AM1758 Gradient PRT

Vertical gradient measurement in “dry block/dry well”
6mm measurement element
Temperature range -200°C to 670°C
Short term stability +/-0.003°C at 0.01°C

– Brochure AM1758

AM1760 secondary reference PRT

Long term drift <0.004°C after 100 hours on 661°C
Accuracy +/- 0.006°C at 0.01°C
Temperature range -200°C to 670°C

– Brochure AM1760/1762

Standaard Platinum Resistance Thermometers (SPRTs)

AM1850/1860 standard platinum reference thermometer with metal sheath
- Metal sheath
- Good reference thermometer for “dry block” calibrators
- Temperature range -200°C to 670°C

– Brochure AM1850/1860