Cerabar M HART Troubleshooting
Endress+Hauser 37
8.4 Current simulation
If the function or certain reactions of connected switching units need to be checked, a signal current
can be simulated independently of the operating pressure present.
8.5 Reset
8.5.1 Reset via onsite operation
Use the Zero and Span keys to reset to the factory setting:
• To the lower-range value (Zero) = lower sensor measuring limit
• To the upper-range value (Span) = upper sensor measuring limit
• The bias pressure to zero = 0.0 pressure unit
1. Press the Zero and Span keys simultaneously.
2. Release the keys, press them a second time within 2 seconds andhold them for at least
7 seconds. Any reset that has taken place is confirmed on the onsite display (optional) with
"Res".
8.5.2 Reset via communication
By entering a certain code, the matrix field entries can be reset partially or completely to the factory
settings.
The Cerabar M makes a distinction between four different reset code numbers with different effects.
See the following table to find out which parameters are reset by reset code numbers 5140, 2380,
2509 or 731.
Main group: Additional functions
# Matrix (VH position) Path through the menus Entry
1V7H1 ➤ Simulation ON
2V7H2 ➤ Simulate current e.g. 22 mA
Main group: Additional functions
# Matrix (VH position) Path through the menus Entry
1V2H9 ➤ Reset e.g. 2380
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