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If it is desired to operate on negative signals the battery
is merely reversed in its holder.
Correspondingly,
if it la
desired that the unit be fail-safe,
the chopper lead-polarity
should be so chosen 60 that the relay opens on exceeding the
limit
either
from high or low as desired,
QUT~WI CONNECTIONS - The
bUtpU'6
is
obtainned as a DFDT set of
contacts from a relay.
The rating
of the relay is
5
amperes
NON-INDUCTIVE. If inductive
loads or higher currents
are to
be switched, the output should be followed by a second relay
of high enough current capacity.
IV - 2
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