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U•V6
Instruction Manual
33
|
65
Certified
ISO9001 • VCA
c)
Alarm Type
Alarm Type
allows the user to view the way in which the alarm is calculated:
▪
Disabled
: this alarm level is deactivated
▪
Instant
: this alarm level is based on the measurement at time t
▪
Average
: this alarm level is calculated based on an average over time (configurable).
It is triggered when the calculated value exceeds the configured threshold.
▪
Above for xx minutes
: this alarm level is only triggered if the threshold is exceeded
for at least xx minutes.
d)
Alarm Thresholds
Alarm Threshold
allows the user to view the value of the gas-concentration threshold for the
selected alarm level.
e)
Latching Mode
Latching Mode
allows the user to view the latching mode for the selected alarm level:
▪
Latching
: when the cause of the alarm is gone, the alarm remains active until
manual action is taken on the U•V6 unit (
RESET button pressed twice
).
▪
Non-latching
: when the cause of the alarm is gone, the alarm is automatically reset
and disappears.
Relay Configuration
Navigation :
Info menu
→
Configuration info
→
Relays info
The
Relay Info
sub-menu allows the user to view the configuration for each relay, i.e. the
failsafe mode and addressing for it.
Failsafe config.
Not in failsafe / Failsafe
Failsafe Mode for the selected relay
Addressing
Addressing of the selected relay
The U•V6 unit might display an alarm message when the gas concentration has already
fallen below the alarm threshold, when the unit alarms are latched. An alarm based on
an average over time may remain active when the measurement time
t
is below the
threshold. It is normal for it not to be possible to reset the alarm in such a scenario. It
will only be possible to reset the alarm when the average value falls below the
configured threshold.
