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Aérométrologie
COFRAC calibration of thermometers
In thermometry, with numerous measuring methods, our metrology laboratories offer in particular high temperature calibration or low temperature calibration and verification of:
100 and 1000 ohm platinum resistance probes in 3 or 4 wire technology,
Thermoelectric couples,
Temperature measuring chains, digital or analog thermometers,
Mechanical thermometers,
Temperature recorders.
Liquid expansion thermometers, with degree reading method (immersible length from 50 mm to 250 mm up to the degree to be read)
Portable generators
In Les Ulis, the calibrations range from low temperature to high temperature:
with our portable oven from -100°C to -80°C, alcohol baths from -80°C to 0°C, ice baths at 0°C, water baths from 0°C to 90°C, silicone oil bath from 90°C to 250°C, by comparison with a reference probe coupled to a multimeter,
by insertion into our tubular furnace from 250°C to 1100°C, by comparison with a reference probe coupled to a multimeter,
in our thermostatic enclosure (from -40°C to 150°C) by comparison with a reference probe coupled to a multimeter,
thanks to three fixed points of the EIT-90, which are Mercury -38.834°C, water 0.01°C and Gallium 29.764°C,
In Pernes-Les-Fontaines:
by comparison with a reference probe coupled to a multimeter in our thermostatic enclosure (from -40°C to 150°C),
As a reminder of the EIT-90: International Temperature Scale of 1990.
Electrical simulation: in addition, in the field of COFRAC calibration by electrical temperature simulation (generator or receiver mode, by thermocouple or thermoresistance), our Electrical Measurements laboratory in Pernes-Les-Fontaines will support you (RTD, TC, etc.).
Scopes 2-1583 and 2-6346 available on www.cofrac.fr
