Detecting An Open Loop On A Voltage Input - Burkert 8619 Operating Instructions Manual

Type 8619
Diagnostics Menu
When a "warning" or "error" event is generated by the 8619:
→ go into the "Information" menu to read the cause of generation of this event;
→ correct the problem according to the instructions given in section 16.3.
• The "warning" event may also be associated with one and/or other digital outputs. See section 9.26.
• A current of 22 mA may be emitted on one and/or other of the current outputs when an "error" event
related to either the monitoring of the fluid pH, redox, conductivity or temperature values or the
monitoring of an analogue input is generated. See section 9.25.
• See also "If you encounter problems" in section 16.3.
WARN. LOW: Enter the analogue input value below which a "warning" event is generated.
WARN. HIGH: Enter the analogue input value above which a "warning" event is generated.
ERR. LOW: Enter the analogue input value below which an "error" event is generated.
ERR. HIGH: Enter the analogue input value above which an "error" event is generated.
11.4

Detecting an open loop on a voltage input

This function is available for an analogue input configured in "voltage" mode.
Refer to section 8.10 to access the "Diagnostics" menu.
Diagnostics
Mx:Inputs
DISABLE/ENABLE: Activate or deactivate the open loop detection.
When the function has been activated, an "error" event is generated and the message "Mx:E:AIx open" reg-
istered in the data logger if no source is connected to the voltage input or if the wiring is incorrect.
AI1/AI2
Open loop Disable/Enable
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