Ashcroft B7 series, Руководство по установке и обслуживанию

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4 Technical data
The detailed technical information can be found in the documents in the Appendix, Chapter 12.
5 Labeling on the device
The label with the serial number and type designation is located on the outside of the housing. The materials identifier
is encoded in the type designation.
5.1 Labeling on the device for explosion risk areas (ATEX)
The label with the marking for explosion risk areas is located on the outside of the housing.
Switch certified flameproof
enclosure or dust ignition
protection by enclosure:
#7###CN###
6 Construction 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 approved control device which features a mechanical snap
action switch. Controllers are available for operation on pressure or vacuum, differential pressure or temperature with
fixed or variable differential. Also manual reset types for operation on increasing or decreasing pressure. The manual
reset types remain tripped until reset by pressing a button on top of the enclosure. Various wetted material
constructions for compatibility with a range of pressure media may be obtained.
6.3 Description of components
6.3.1 Process adapter of pressure switch B7