ProMinent gamma G/4b Operating Instructions Manual page 67

Metering pump
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Operation (Option Version)
Error message "Error Analog":
The advantage of a "life-zero" operation (for example of a 4-20 mA signal)
is the fact that the metering pump reports the failure of this signal or if it
drops below the value set (e.g. in the event of a cable rupture) as an error
e.g:
Error
Relais
f
Analog
In order to acknowledge the error message at least 4 mA must be applied
at the signal current input, after this the pump starts again independently
and the error display "Error" and the flashing "Analog" go off.
If however after an error message the metering pump should remain in the
"Error/stop" mode and not continue to feed automatically from 4 mA, the
customer must fit a suitable automatic relay to support this function.
This fault annunciation relay then takes over the alarm annunciation from
the optional fault annunciation relay of the metering pump and switches
the metering pump off using the control function "Pause/stop".
For releasing the metering the automatic relay must then be released
again and the "Pause/stop" control function must be revoked via the
control cable.
Version 2.0
Page 65 of 88 pages

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