ZENITH 140 INSTRUCTION MANUAL
72
Alarms
P210, 220, 230, 240, 250, 260 = 1 (Alarm)
The second parameter for each relay determines the function of the alarm.
P211, 221, 231, 241, 251, 261 – Relay Function
Alarm is based on the level in the vessel, and the type of level
alarm (P212, 222, 232, 232, 242, 252, 262) and two setpoints
must be set (P223, 223, 233 & 214, 224, 234, 244, 254, 264).
Setpoints are entered in display units or % of span as
referenced to empty level.
Alarm is based on the rate of change of level in the vessel,
and the type of rate of change alarm (212, 222, 232, 242, 252,
262), and two setpoints must be set (213 & 223, 214 & 224,
234 & 234, 243 & 244, 253 & 254, 263 & 264). Setpoints are
entered in Display Units per minute or % of span per minute
and a negative value should be entered for a Rate Alarm on a
de-creasing level, and a positive value for an increasing level.
Alarm is based on the temperature, and the type of
temperature alarm (P212, 222, 232, 242, 252, 262) and two
setpoints must be set (P213, 223, 233, 243, 253, 263 & P214,
224, 234, 244, 254, 264). The temperature used depends on
the temperature source selected (P852). Setpoints are entered
in
o
C.
Alarm is raised if the Failsafe Timer (P809) expires. No
setpoints required.
Alarm is raised if the expires. No setpoints required.
When Pump Efficiency is enabled, Alarm is based on the
Efficiency of the pump which is allocated to the relay I.D.
(P212, 222, 232, 242, 252, 262) and two setpoints must be set
(P213, 223, 233, 243, 253, 263 & P214, 224, 234, 244, 254,
264). Setpoints are entered in %.
Alarm is raised if a device, connected to the relay assigned in
alarm ID (P212, 222, 232, 242, 252, 262), fails. E.g. pump is put
out of service. No setpoints are required.
Alarm is raised if a fail signal is detected on the digital input
as assigned in alarm ID (P212, 222, 232, 242, 252, 262) No
setpoints are required.
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