ZENITH 140 INSTRUCTION MANUAL
128
P809 Failsafe Time
In the event of a failsafe condition the failsafe timer determines the time
before failsafe mode is activated. Default = 2mins
If the timer activates, the unit goes into failsafe, as determined by P808
(Display), P218, 228, 238, 248, 258, 268 (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.
P811 Alarm 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).
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