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why we use negative 24vdc to a proximeter

Answers were Sorted based on User's Feedback

why we use negative 24vdc to a proximeter..

Answer / venkatesh

In -ve voltage the rate of distabance is lesser than +ve
voltege.So we using -10vdc(some time-9.7 to -9.8vdc is
acceptable ).

 Is This Answer Correct ? 11 Yes 3 No

why we use negative 24vdc to a proximeter..

Answer / munty

we use negative supply bcz the vibration sensor based on PNP
TRAANSISTOR philosophy, PNP the base voltage suppose to be
nagative.

 Is This Answer Correct ? 9 Yes 1 No

why we use negative 24vdc to a proximeter..

Answer / manish k soni

we r not using negative supply but the 0utput
is set negative and this is ony the company
monopoly

 Is This Answer Correct ? 2 Yes 7 No

why we use negative 24vdc to a proximeter..

Answer / smart dude

in vibration senseor we give -24 v in proximitor becoz it
have vaild reason
and reason is that becoz we have to take o/p of proximitor
is -10 to 0
and why we have to take the voltage o/p -10 to 0 is that
becoz and the distance b/w shaft and and sensor get less rf
signal is absobed by the meatal and voltage gets
down ,,,but acc to human mind setup as gap decrease singla
amount shoukld increase (as in case of 4 to 20 ma ),so we -
ve volatage o/p becoz as -ve voltage decrease it means vale
is increasing (acc. to math -4<-3)

 Is This Answer Correct ? 5 Yes 13 No

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