Vaisala DRYCAP DMT340 SERIES Betriebsanweisung Seite 134

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User's Guide _______________________________________________________________________
132 __________________________________________________________________ M210704EN-G
Table 30 Relay State Examples
Criterion for
Relay Activation
Transmitter
Operation Status
NC-C
Connected
NO-C
Connected
Not chosen
Power off
T
d/f
below -10 °C*
Measured T
d/f
above -10 °C
Measured T
d/f
below -10 °C
T
d/f
above -10 °C *
Measured T
d/f
above -10 °C
Measured T
d/f
below -10 °C
Fault status
Measurement OK
Error active
Online status
Measurement live
Purge, AutoCal, or
sensor warming
active
* Hysteresis has an effect when relay switching is based on live measurement.
See section Hysteresis on page 130.
Enabling/Disabling the Relays
You can deactivate the relay outputs for example for service purposes of
your system.
Operation of the Indication LEDs
Relay is activated: LED is lit.
Relay is not activated: LED is not lit.
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