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6.5.10 ALARM 1 and ALARM 2 menus
Both alarm menus are identical.
ä
ä
ä
ALARM 1 or
ALARM 2
HI or LO
HIGH / LOW
ALARM 1 or
ALARM 2
PV
ALARM 1 or
ALARM 2
HYST
ä
ALARM 1 or
ALARM 2
DEL AY
ä
ALARM 1 or
ALARM 2
LATCH
Sets high or low alarm. Both alarms can be set to high or
low, or one high, one low. Regulations apply to boiler low
alarms, and must be observed.
Sets the actual PV percentage at which the alarm operates,
e.g. high alarm, 85% of the gauge glass.
A damping effect - default 5%. Set a higher value for
turbulent conditions.
A further damping feature for a very turbulent boiler (0-99
seconds). A longer delay prevents spurious alarm signals.
Each alarm can be latching or non-latching. If latch ON
is selected, the alarm will remain ON until cancelled by
entering the commissioning mode pass code.
Switching off the power does not cancel the alarms.
LATCH - Warning: Each time a water level alarm occurs and the LATCH feature
is selected, the product writes data from the internal non-volatile memory. This
operation has a limited number of cycles and therefore reduces the products lifespan
(e.g. if one alarm occurs every day, the product will last approximately 13 years)
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