Calibration technology Standard thermometer Models CTP2000 and CTP9000 WIKA data sheet CT 61.10 Applications ■■ Comparative calibration in dry well calibrators, tube furnaces and liquid baths Special features ■■ High stability ■■ Low drift, long service life ■■ Wide temperature range Platinum resistance thermometer model CTP2000 Description Calibration by means of an external standard thermometer The WIKA standard thermometers are particularly suited for applications in industrial laboratories. They enable easy comparative calibration in our baths, in tube furnace and in dry well calibrators. The use of an external reference thermometer is recommended, particularly for the calibration of short temperature sensors. Thus the errors due to the radial and axial temperature distribution in the temperature conditioning unit are considerably reduced. WIKA data sheet CT 61.10 ∙ 01/2015 Data sheets showing similar products: Reference thermometer; model CTP5000; see data sheet CT 61.20 For calibration, the test items and the standard thermometer are brought to the same temperature in a temperature conditioning unit. As soon as a stable temperature is reached, the test items are read or their output signals are measured (resistance, thermoelectric voltage, standard signal) and compared with the standard thermometer. Using this comparison method, the measuring uncertainty can be considerably reduced because not only the display of the temperature conditioning unit is taken into consideratio

Platinum resistance thermometers model CTP2000 Features The measuring resistor consists of a platinum winding of highest purity. All parts are pre-aged in order to remove contamination and distortions. Measuring technology The 4-wire design offers an optimum connection solution for resistance thermometers. The measuring result is affected neither by the lead resistances nor the temperature-dependant fluctuations. The electrical connections are welded in order to minimise the transition resistance. The connecting wires are bound in a 2 m long, shielded connection cable. Principle of a platinum...

Scope of delivery ■ Thermometer ■ Calculation of the characteristic constant and table R(tgo) degree by degree Options ■ Transport case ■ DKD/DAkkS calibration for 6 temperatures ■ Cold junction in the metal tube (CTP9000) outer dimensions: d x l = 6 mm x 250 mm measuring line: 2 m PVC cable, with 4 mm banana plug Temperature range WIKA data sheet CT 61.10 • 01/2015

Schematic representation of the connections Resistance thermometer RL1 RL2 Pt 100 (Integrated measuring device CTD9300) Thermocouples Contact point, t2 Ordering information Model / calibration / calculation of constant / transport case / cold junction / additional order details WIKA data sheet CT 61.10 ∙ 01/2015 WIKA Alexander Wiegand SE & Co. KG Alexander-Wiegand-Straße 30 63911 Klingenberg/Germany Tel. +49 9372 132-0 Fax +49 9372 132-406 [email protected] www.wika.de © 2008 WIKA Alexander Wiegand SE & Co. KG, all rights reserved. The specifications given in this document represent the state of engineering...