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GY-ZNFB User Manual

This guide covers the explosion-proof magnetic door detector's drawings, specifications, normally open/normally closed signal options and wire identification. It explains switch and magnet placement, alignment and spacing, the effect of steel doors on sensing distance and the restriction against directly driving loads through the low-voltage contact.

GY-ZNFB User Manual English.pdf
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DongguanYunjieIntelligentTechnologyCo.,
Ltd.
Explosionproofdoormagnetic
detector
Instructionsforexplosionproofdoormagnetic
detector
ProductDrawings:
Specifications:
Model
Signalmode
Threeoptions:Normallyclosed(NC),normallyopen(NO),or
combinedNO/NC.
Graywire:Common(COM);Redwire:Normallyopen(NO);Whitewire:Normallyclosed
(NC).
Explosionproof
marking
Ratedvoltage
Ratedcurrent
Work
environment
Enclosureprotectionrating
Sensingdistance
Normallyclosed
(NC):≥3cm
Normallyopen(NO):
≥2cm
Signalnote:Withtheswitchandmagnetbroughttogether,theNCcontactconductsandtheNOcontactis
open.
Doormagneticswitchinstallationmethodandmattersneeding
attention:
Thebeltswitchisinstalledonthedoorframe,themagnetisinstalledonthemovabledoororwindow,andthescrewisfixed;
Duringinstallation,theswitchandthemagnetshouldbealignedinparallel,andmisalignmentwillaffectthesensingdistanceofthe
switch;
Theinstallationdistancebetweentheswitchandthemagnetis≤1CM(thefactorytestdistanceofthis
doormagnetis23cm).Theinductiondistanceinstalledontheirondoorwillbegreatlyweakened,
andtheswitchwiththedistancegreaterthanthefactorymeasurementvaluewillloseitsfunction;
Thisswitchisaweakmagneticswitch,cannotbedirectlyloaded.
Installationdiagram:
Explosionproofdoormagnetic
detector
Readabletextreferenceforsmalllabels
Sourcepage1
Explosionproofdoormagneticdetector
Sourcepage1
Signalnote:Withtheswitchandmagnetbroughttogether,theNCcontactconductsandtheNOcontact
isopen.
Sourcepage1
Explosionproofdoormagneticdetector