Description
Features of the Secondary SPRT Model 215:
Temperature Range: With an operating range of -100 °C to 670 °C, our eXacal 215 Secondary SPRT Reference Thermometer covers a medium temperature range for common applications. This makes it a versatile solution for various measurement requirements.
Low Measurement Uncertainties: The thermometer’s precision is underscored by its low measurement uncertainties of only 2.5 mK to 13.5 mK with DAkkS accredited calibration according to DIN EN ISO/IEC 17025. This excellent accuracy ensures reliable results in all areas of application.
Robustness: As a robust alternative to highly sensitive SPRTs with quartz sheaths, our Secondary SPRT Reference Thermometer stands out due to its metal sheath and stable measuring resistors. This makes it ideal for long-term use.
New SPRT Sensor: The SPRT temperature sensor newly developed by Klasmeier has been improved in the following areas:
- fast response time
- low hysteresis
- low self-heating
- excellent reproducibility and stability
Temperature Sensors from Our Own Manufacturing Facility
Every temperature sensor for the eXacal 230 Standard Platinum Resistance Thermometer (SPRT) is manufactured with the utmost care and precision in our in-house manufacturing facility in Fulda. The development and production of our own measuring resistors guarantee the highest quality and reliability.
Why Klasmeier’s Manufacturing Facility?
• Craftsmanship Precision: Our SPRTs are manufactured by experienced experts who carefully monitor every detail.
• Individual Solutions: We can address specific requirements and produce customized sensors for your application.
• Quality Control: Every sensor undergoes strict testing procedures to ensure it meets the high requirements of the International Temperature Scale ITS-90.
By manufacturing in our own facility, we have full control over the entire production process – from material selection to final accredited calibration. The result: a product that meets the highest demands in measurement technology.
DAkkS-Certified Calibration of Secondary SPRTs
In our in-house DAkkS-accredited calibration laboratory, we offer high-precision calibration services for SPRTs. Our accreditation guarantees that every calibration is performed according to the internationally recognized standards of DIN EN ISO/IEC 17025. This ensures seamless traceability to national and international standards.
| Range | Temperature Fixed Points | Measurement Uncertainty |
| -38.8344 °C – 0.01 °C | Mercury to Water | 2.5 mK |
| 0.01 °C – 29.7646 °C | Water to Gallium | 3.5 mK |
| 0.01 °C – 231.928 °C | Water to Tin | 8.5 mK |
| 0.01 °C – 419.527 °C | Water to Zinc | 13.5 mK |
| 0.01 °C – 660.323 °C | Water to Aluminum | 13.5 mK |
What Makes Our Calibration Special?
Traceability: Through our DAkkS accreditation, every calibration is directly linked to national and international standards. This gives you the assurance that your measurement results are recognized worldwide.
Measurement Uncertainty: The accuracy of our calibration is based on a careful evaluation of all uncertainty components, including the thermometer’s reproducibility, the ITS-90 deviation function, the sensor’s self-heating, and hysteresis.
Application Range: With the detailed information from the calibration certificate, you can use your secondary SPRT with full confidence in the temperature range of -38.8344 °C to 660.323 °C.
Learn more about our calibration laboratory:
