Formula Sound SENTRY MK2 Podręcznik użytkownika - Strona 11
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SENTRY MK2 ADDENDUM
Sentry "A" weighting Option
An "A" weighting option is available for applications that require it i.e. Industrial noise
applications. 'A' weighting is a frequency response curve that resembles the human ear
response. It is much more sensitive in the mid 500Hz - 5kHz region. It is selected by placing the
weighting response selector in the top position.
Where this option is fitted the "Bass" weighting filter is replaced by the "A" weighting filter. Sentry
units supplied with this option will have been re-labelled as "A" instead of Bass on the PCB.
'C' weighting and Linear response are still available by using the weighting response selector.
(See Drg. 879 Section D).
REMOTE RESET SWITCHES
2 types of remote reset switch are available a push button version and a key switch version for
extra security. Both types feature a surface mount box 65mm X 65mm X 45mm depth. They
are fitted with led's to indicate Warning and Reset. Connections are the same for both types.