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Summary of Contents for Kobold TWR-1 Series
- Page 1 Operating Instructions Temperature Switch Model: TWR...
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Page 2: Table Of Contents
EU Declaration of Conformance (ATEX version) ........16 UK Declaration of Conformity Standard version .......... 17 Manufactured and sold by: Kobold Messring GmbH Nordring 22-24 D-65719 Hofheim Tel.: +49(0)6192-2990 Fax: +49(0)6192-23398 E-Mail: info.de@kobold.com Internet: www.kobold.com page 2... -
Page 3: Note
Please read these operating instructions before unpacking and putting the unit into operation. Follow the instructions precisely as described herein. The instruction manuals on our website www.kobold.com are always for currently manufactured version of our products. Due to technical changes, the instruction manuals available online may not always correspond to the product version you have purchased. -
Page 4: Operating Principle
4. Operating Principle The switching element in the model TWR is a thermal time-delay switch. Two strips of metal with different coefficients of thermal expansion are rolled together in the switch. When temperature is applied the bimetal reed bends and thus opens/closes the contact. -
Page 5: Use In Hazardous Areas
6. Use in Hazardous Areas 6.1. General The temperature switches TWR-3 **** and TWR-4 **** can be used as follows (taking into account the notes and the approved electrical limit values): a) In zone 2 (Gas-Ex, EPL Gc) in explosion group IIA, IIB and IIC b) In zone 22 (Dust Ex, EPL Dc) in explosion groups IIIA, IIIB and IIIC The temperature switch also fulfills the requirements for a simple electrical apparatus according to EN 60079-14 and EN 60079-11 and can be used in... -
Page 6: Warnings For Use In Hazardous Areas
6.4. Warnings for use in hazardous areas a) Equalizing currents must not be routed through the metallic constructions. b) The temperature switch must be installed so that possible electrostatic charges can be charged off. (Leakage resistance to PA <1 MΩ) c) The temperature switch should be protected against mechanical shocks. -
Page 7: Mechanical Connection
7. Mechanical Connection Before installation: Make sure that the desired TWR switching temperature and switching function corresponds with your plant requirements. The TWR data is to be found on the metal nameplate (OFF = N/C contact, ON = N/O contact at the specified temperature). - Page 8 Contacts TWR-1... TWR-2... TWR-3... TWR-4... TWR-1/3... TWR-2/4..., N/O function The contact closes when the temperature rises and the switching value has been reached or exceeded. It opens again when the temperature falls below the limit value less the switching hysteresis. Electrical wiring option –L and –G (The circuit is placed inside of the connector in parallel to the contact, not for ATEX version):...
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Page 9: Maintenance
Hysteresis Hysteresis is the difference between make and break points, which are at different temperatures. The hysteresis is max.20 °C. Example: TWR-110500 Contact opens at 50 °C ±5 °C Contact closes at approximately 30 °C ±5 °C Note: Temperature switches with low switching temperatures, when used at high ambient temperatures, are only reset when the switch is cooled to below the ambient temperature. -
Page 10: Technical Information
11. Technical Information Operating instructions, data sheet, approvals and further information via the QR code on the device or via www.kobold.com 12. Order Codes Operating instructions, data sheet, approvals and further information via the QR code on the device or via www.kobold.com 13. -
Page 11: Disposal
14. Disposal Note! Avoid environmental damage caused by media-contaminated parts Dispose of the device and packaging in an environmentally friendly manner Comply with applicable national and international disposal regulations and environmental regulations. Batteries Batteries containing pollutants are marked with a sign consisting of a crossed-out garbage can and the chemical symbol (Cd, Hg, Li or Pb) of the heavy metal that is decisive for the classification as containing pollutants: 1. -
Page 12: Statement Of Conformity
15. Statement of Conformity page 12 TWR K15/0923... - Page 13 TWR K15/0923 page 13...
- Page 14 page 14 TWR K15/0923...
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Page 15: Eu Declaration Of Conformance Standard Version
16. EU Declaration of Conformance Standard version We, KOBOLD Messring GmbH, Nordring 22-24, 65719 Hofheim, Germany, declare under our sole responsibility that the product: Temperature Switch Model TWR-... to which this declaration relates is in conformity with the following EU directives... -
Page 16: Eu Declaration Of Conformance (Atex Version)
17. EU Declaration of Conformance (ATEX version) We, KOBOLD Messring GmbH, Nordring 22-24, 65719 Hofheim, Germany, declare under our sole responsibility that the product: Device: Temperature Switch Model TWR-... Fulfills all relevant requirements of the following directive(s): 2014/34/EU Devices and protective systems for the intended use in... -
Page 17: Declaration Of Conformity Standard Version
18. UK Declaration of Conformity Standard version We, KOBOLD Messring GmbH, Nordring 22-24, 65719 Hofheim, Germany, declare under our sole responsibility that the product: Temperature Switch Model TWR-... to which this declaration relates is in conformity with the following UK directives stated below: S.I.
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