snuffy(at)usol.com Guest
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Posted: Mon Jan 09, 2006 4:11 am Post subject: EIS systems sender |
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Quote: | I'm not really sure. Does an EIS monitoring system change analog at the
sender or at the panel?
Vic
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Not familiar with EIS systems, but typically the conversion from analog to
digital is done in the panel. If there are only a couple of wires going from
sender to panel you can be assured the conversion is done in the panel. If
the conversion is done in the sender, there needs to be first of all two
wires just for the power to the conversion circuits in the sender. Then
depending on the sender, two or more wires for the return signal to the
panel, to indicate temp, position, velocity, whatever is being detected.
Conversion circuits in senders, subjects the circuits to more destructive forces
than if the conversion circuits are in the panel.
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