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Ashcroft B7 series, Руководство по установке и обслуживанию

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Содержание B7 series

Страница 1: ...del B7 differential pressure switch model D7 and temperature switch model T7 for explosion risk areas pursuant to Directive 94 9 EC ATEX IEC In the following configuration B7 CN pressure switch D7 CN...

Страница 2: ...ical data 7 5 Labeling on the device 7 5 1 Labeling on the device for explosion risk areas ATEX 7 6 Construction and function 7 6 1 Overview 7 6 2 Description of function 7 6 3 Description of componen...

Страница 3: ...19 11 Removal disposal 13 11 1 Safety 13 11 2 Removal 13 11 3 Disposal 14 12 Appendix 14 12 1 Data sheet for switches B7 D7 and T7 14 12 2 EG Declaration of Conformity 15 12 3 IECEX Declaration of con...

Страница 4: ...ality 1 4 Copyright This Operating Manual may only be copied and passed on as a complete document without the special permission of the publisher 1 5 Warranty For the product described here we offer a...

Страница 5: ...al regulations for accident prevention and the operator s internal regulations regarding working operations and safety must be respected The operator is responsible for all specified servicing inspect...

Страница 6: ...32 UNF 2B socket head cap screw The base houses a range of various switch elements and an operating rod The base has three bosses at 90 apart on its side walls The two opposing bosses each contain a N...

Страница 7: ...on and function 6 1 Overview B7 pressure switch D7 differential pressure switch T7 temperature switch Figure 1 6 2 Description of function The Ashcroft pressure switch is a precision built agency appr...

Страница 8: ...This is inherent in the design due to the precise relationship that exists between temperature and pressure according to the vapor pressure laws A wide selection of sensing bulb and armored capillary...

Страница 9: ...tection against special conditions such as vibrations pulsations and pressure spikes A bracket must be installed to support the switch if the metering pipe is not able to provide adequate support Ambi...

Страница 10: ...ust be frost protected Safety notice When tightening control to pressure line always use the wrench flats or hex on the lower housing and do not twist the device itself 8 3 2 Electrical connection Tak...

Страница 11: ...pressure As received the pressure switch will normally be set to approximately 90 of the indicated range Pressurize the system to required setpoint and turn the adjustment nut until switch changes mod...

Страница 12: ...a bath at the desired setpoint temperature Optimum performance will be obtained if the bulb is fully immersed Allow five minutes for initial stabilization As received the temperature switch will norma...

Страница 13: ...nance Never use aggressive solvents Do not use high pressure water to clean the switch 10 Faults 10 1 Safety Defective or faulty switches put the operational safety and process safety of the plant at...

Страница 14: ...pose of or recycle the devices and components used in accordance with the applicable regulations 12 Appendix 12 1 Data sheet for switches B7 D7 and T7 More detailed datasheets are available direct fro...

Страница 15: ...Page 15 of 19 12 2 EG Declaration of Conformity...

Страница 16: ...Page 16 of 19 12 3 IECEX Declaration of conformity...

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