Important Information
In the event of a fail-safe condition occurring, the display, relays and mA
Output can be configured to fail to a condition which is independent of each
other. To set independent Relay Failsafe see P218, 228, 238, 248, 258. And
for independent mA Output Failsafe see P840.
P809 Fail-safe Time
In the event of a fail-safe condition the failsafe timer determines the time
before fail-safe mode is activated. Default = 2mins
If the timer activates, the unit goes into fail-safe, as determined by P808,
(Display), P218, 228, 238, 248, 258 (Relays) and P840 (mA Output).
When this happens, you will see the message “Failed Safe!” on the display,
along with a message explaining why (lost echo or transducer fault, for
example)
When a valid measurement is obtained then the display, relays and mA
output will be restored and the timer is reset.
Auxiliary
P810 Units
This parameter determines whether the Measurement units (P104) are
displayed on the auxiliary line of the display in run mode.
Measurement units will not be displayed
Measurement units will be displayed
P811 Alarms Messages
This parameter determines whether notification messages are displayed on
the auxiliary line of the display in run mode when an alarm relay is switched
on or off. The message is in the form “Alarm High ON”, where the ‘High’ is
determined by the setting of the relay Alarm ID (P212, 222, 232, 242, 252).
Alarm messages will not be displayed
Alarm messages will be displayed
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