Temperature Measurement
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Catalog excerpts

Temperature Measurement - 1

SPECIAL CABLES · TEMPERATURE MEASUREMENT · HARNESSING INSTALLATION AND MAINTENANCE OF INDUSTRIAL ELECTRIC THERMOMETERS GUIDELINE POSSIBLE CAUSES OF TROUBLE AS WELL AS THEIR ELIMINATION

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Temperature Measurement - 2

CONTENTS ELECTRIC THERMOMETERS INSTALLATION, MAINTENANCE AND TROUBLE FINDING page 1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Principle of function of electric thermometers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.1 Resistance thermometers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

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Temperature Measurement - 3

GUIDELINE 1 General Electric thermometers transfer the physical temperature value into a temperature dependent signal. They are closed constructive components delivering output signals for further treatment. In most cases auxiliary energy sources are necessary dependent on on the sensor type. The good transmission of those electrical signals over far distances offer a great advantage. The reception of the measured value and the reading place of the temperature can be far away from each other. The measuring signals can easily be integrated and treated in control or process control systems...

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Temperature Measurement - 4

GUIDELINE 3 Installation and first initiation of thermometers 3.1 Spacial arrangement of thermometers In general, electrical thermometers work independently of their position. The preferred mounting position is „vertically suspended” that means connection head on the top and protecting tube below. 3.2 Installation of thermometers Usual installation methods are: - screwed thread (cylindric and conical outer thread) - swivel nut with inner thread - adjustable flanges and counter flanges, only tight with small gas pressures - welded flanges - adjustable clamped screwings - welded into tubes/...

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Temperature Measurement - 5

GUIDELINE 3.5 Surrounding conditions at connection head The ambient temperatures shall range from -25 °C up to + 80 °C. If silicone gaskets are used, temperatures up to + 150°C are possible. The stress on gaskets, cable insulation, on the material of the connection heads, etc. has to be considered! If electronic transmitters are mounted in the connection head, their temperature limits have to be taken into account! The admissible temperature of the weakest component part is important! The protecting type of the connection heads has to be chosen according to the expected ambient conditions....

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Temperature Measurement - 6

GUIDELINE 5 Maintenance 5.1 Returning inspections Thermometers and their measuring circuits shall be controlled regularly (1 to 12 months) with regard to: - mechanical, thermal, chemical damage of the protecting tubes - corrosion and bad contacts at cable connections - tightness of connection heads - function of the measuring circuits (drifts, insulation resistance) 5.2 Control of measuring circuits Loosen cable connections in connection head and check instruments with regard to the operating temperature for - thermocouples with mV signal - for resistance thermometers with test resistance...

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Temperature Measurement - 9

6.3 Specific defects of resistance thermometers

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Temperature Measurement - 10

years of experience in temperature measurement and control technique as well as in cable production have made a one man business a company with nearly 500 staff members. Our strength is not only the production of standard products but also the development and manufacturing of special products acc. to customers' specifications. Every year we manufacture more than 1500 special products on our customers' request. Every single product is a challenge for our technical team. We at SOB Brockskes see ourselves as manufacturer and service provider - in the sense of real partnership and...

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Temperature Measurement - 11

rom our central stock in Viersen-Suchteln or our external stocks, we supply standard lengths as well as special dimensions, often within 24 hours. It is our strength to be at different places at the same time. This shows also our wide product range. Being always ready to deliver our products of constant quality is our strength at SOB BROCKSKES. Challenge, obligation - but also guarantee at the same time. This is your advantage - we are present whenever you need our assistance. Head office: SRB BROCKSKES GmbH & Co. KG Grefrather Str. 204-212b 41749 Viersen Germany Phone: +49 (0) 2162...

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Temperature Measurement - 12

FLEXIBLE CABLES n Halogen-free cables n Cable track cables n Servo motor cables n ETFE, FEP, PFA cables n Bus cables n Torsion cables n Hybrid and special cables n Control and connection cables n Data cables n Besilen® (Silicone) cables n Compensating and extension cables n Tray cables TEMPERATURE MEASUREMENT n Protecting armatures and gauge slides n Mineral insulated thermocouples and Mineral insulated resistance thermometers n Temperature measurement in plastics processing industry/Hot runner technique n Diesel thermocouples n Probe with stainless steel sleeve n Temperature measurement in...

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