Vaisala PTU300 Guia do Utilizador Página 105

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Chapter 4 ________________________________________________________________ Operation
VAISALA ______________________________________________________________________ 103
0610-077
Figure 42 FAULT/ONLINE STATUS Relay Output Modes
FAULT/ONLINE STATUS relays are usually used in conjunction
with an analog output to obtain validity information for the output
value.
NOTE
If transmitter loses its power, all status-based relays are released
similarly to the case of an instrument failure.
Enabling/Disabling Relays
You can deactivate the relay outputs for example for service purposes
of your system.¨
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