New precision thermometer offers unequalled accuracy and stability

Precision thermometer MicroK (openPR) - under the product name ISOTECH a new precise thermometer is presented, which takes up for itself, to set new worldwide scales at accuracy and stability. Developed for a large range of highly precise industrieller and scientific calibration's applications, the equipment with a complete new measuring technique works, in order to reach Messunsicherheiten, those better than 0.4 ppm, or according to 0.0004 °C, are, if it is used with normal platinum resistance thermometers (SPRT). The precision thermometer - called MicroK - is i.e. the only well-known equipment, which works with this precision with three usually used thermometer types, with platinum resistance thermometers, thermocouples and thermistors. For the measurement with resistance thermometer for the Langzeitdrift an actual zero-drift is indicated and for the stress measurement an annual drift of only 3 ppm.

The MicroK is simple to use and has a whole number of inserted Annehmlichkeiten. The tariff, a comfortable and effective operation makes inserted 6.4 for color Touch possible screen, supported of Windows CE. It is possible a direct reading of the temperatures of all feeler types, a measured value storage and an export of the data in appropriate text processing programs and diagram representations. Guidelines for the calibration of temperature sensors recommend the use of two separate reference thermometers. For this reason the developers built three channels into the MicroK. Permits the user to directly attach also still the thermometer which can be calibrated without using an additional measuring point change over switch. The equipment has also so-called „warm stops “- a power source, in order to simulate a signal current as a resistance thermometer and to regard it warm thereby if it is not measured. This pleasant mechanism eliminates effectively measuring uncertainty portions, which come from current coefficients.

The key to reaching such high accuracies and Stabilitäten similar one finds in a particularly developed/to digital transducers within the measuring circle. In connection with a digital signal processor one reaches Linearitäten better than 0.4 ppm. A further large advantage of this ADC technology is its electrical noise insensitivity. The developers indicate that electrical noise sensitivity with a factor 32 could be changed opposite conventional similar/digital transducers.

A further break with conventional technology is that the instrument no mechanical change over switches, relay or potentiometer used (only in and circuit breaker is a mechanical switch). In the MicroK equipment „State become only solvent “- relay uses.

The equipment series of MicroK offers the selection of 2 measuring uncertainty classes:

The MicroK 400 has a Messunsicherheit of 0,4 ppm over the entire temperature range of a normal resistance thermometer with a R0 = 2.5 O. corresponds to a value 0.1 milli Kelvin (10-4 K) with 0 °C. With thermocouple feelers the Messunsicherheit of the tension amounts to 0.25 µV (250 x 10-9 V), corresponds to 0.01 °C for a gold platinum thermocouple.

The MicroK 800 has a Messunsicherheit of 0,8 ppm over the entire temperature range with normal thermometer with R0 = 2.5 O. corresponds 0.2 milli Kelvin (2 x 10-4 K) with 0 °C. With thermocouple feelers one achieves the same tension measuring uncertainty as with the MicroK 400 Model.

Klasmeier calibrating and measuring technique GmbH
Browerstr. 39
36039 Fulda
Tel.: 0661 55011
Fax: 0661 57498
Email: info@klasmeier.com
www.klasmeier.com

Their partner: Mr. Klasmeier

The Klasmeier GmbH offers complete temperature calibration mechanisms, Temperaturkalibratoren and calibration services. To the content customers belong the primary laboratory of the PTB, many DKD laboratories and industrielle laboratories of research institutes, development centers and quality assurance laboratories and the measuring and automatic control.

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