Endress+Hauser PROMAG 33 - Positive Zero Return and Simulation

Positive Zero Return and Simulation
Caution!
Note the following points when measured value suppression or simulation is active:
Measured value suppression:
• This function has top priority. The appropriate status message “S: POSITIVE ZERO
RETURN ACTIVE” is also displayed with priority in the HOME position. Any error
messages which occur during this time can only be asked for and displayed with
the aid of the diagnostic function.
• Measured value suppression sets all signal outputs to zero (corresponding to zero
flow).
• Both relays are live, i.e. energised.
Simulation:
• This function has second highest priority, likewise the corresponding status
message. Any error messages which occur during this time can only be asked for
and displayed with the aid of the diagnostic function.
• Normal output of system errors via the alarm output (relay 1).
• Normal functioning of relay 1 or 2 as per configuration (see pages 60 and 61).
Caution!
7 Trouble-shooting, Maintenance and Repairs Promag 33
86 Endress+Hauser