Vaisala DRYCAP DMT340 SERIES User's Guide Page 123

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Chapter 4 ________________________________________________________________ Operation
VAISALA ______________________________________________________________________ 123
0610-077
Figure 68 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 the Relays
You can deactivate the relay outputs for example for service purposes of
your system.
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