13 Verification
The customer has asked us to demonstrate the correlation between our products and either NIST or another national standard. Enclosed are calibration certificates that demonstrate the traceability from the CSIR to the Indian NIST and our products. Additionally, a balloon tree diagram illustrates the trace from the CSIR to the Indian NIST. The pyrometer calibrations were carried out using a black body as the heat source, assuming an emissivity of 1. Ensuring traceability to national standards and calibrating sensors are critical, but when we deliver the pyrometer to the customer, there’s a minor fine-tuning procedure to make Dx and Dy parameters, so the pyrometer will read the same temperature as a thermocouple, which measures the temperature near the focus of the pyrometer on the profile. Following installation at the customer’s site, each AST pyrometer needs to undergo a minor fine-tuning process using a calibrated fast thermocouple. We highly recommend using the ANRITSU S-S series thermocouple.
Illustration of the verification process
verification process block diagram
Traceability block diagram
The impact of thermocouple type and usage on measurement accuracy
The temperature measurement is affected by poor thermal. The thermocouple has excellent thermal contact, reacts quickly, and has a well-protected sensitive element. Good thermal contact is achieved without relying on surface roughness or orientation, but there is a notable inertial cooling effect in the measured area, resulting in readouts that are typically lower than the actual temperature.
contact, sensitivity to orientation, and resulting inaccurate readings.
AST certify the above instrument meets or exceeds published measurement specifications (unless otherwise noted). This certificate shall not be reproduced, except in full, without the written approval of the calibration facility.
Technical solution Video
