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Chapter 7 Configuration and Setup
Note: The "Latched" alarm state only applies to the alarm relay. To make the audible
alarm work as a latching alarm, set the Alarm action to ErrScrn in Analysis Preferences
(see page 7-15).
Press
from the Alarm Menu to set the state of the High alarm, 2 for the Low alarm and
1
3 for the STEL alarm. At the next display, specify the state of that alarm by pressing
for Off,
for Enabled, or
2
An Enabled alarm is triggered when the measurement exceeds a preset value. When the
measurement falls below the setpoint, the alarm is extinguished. A Latched alarm also is
triggered when the measurement exceeds a preset value. However, the alarm is only
extinguished when acknowledged via the Control Menu.
Warning: Intrinsically safe models require special actions with respect to the following
section. Refer to Appendix B for descriptions of these actions.
Press
from the Alarm Menu to specify the error and relay triggers. At the Alarm
4
Trigger display, press
alarms related to average concentration.
Press
from the Alarm Menu to select an alarm relay. At the Alarm Relay display, press
5
to specify Relay 1,
1
application is multi-gas, a Select Gas display selects the gas that is associated with the
selection. If the relay setting is associated with more than one gas, select all gases by
pressing
ENTER
activate it on a High alarm, 2 for a Low alarm, 3 for a STEL alarm, 4 for No alarm
(deactivate the relay), and 5 for All alarms. The display responds "-ACCEPTED-."
The relays are Form C, SPDT rated at 24 V dc, 0.25 A.
Note: The relays must be turned on in the Control menu
for Latched. The display responds "-ACCEPTED-."
3
┌────────────────────────────────────────┐
│╒═════ALARM SUMMARY═════╕Select high
││
High alarm: Off
││
Low alarm: Off
││
STEL alarm: Off
││
││ _Conc Trig
││ _Avg Trig
│└───────────────────────┘
└────────────────────────────────────────┘
Alarm State Menu
to specify alarms related to current concentration and 2 to specify
1
to specify Relay 2, and
2
. The next display asks specifies how to activate the relay. Press
│
alarm state:│
│
│
Off
│
_Relay 1 │
1=Off
_Relay 2 │
2=Enabled
3=Latched
to specify All relays. If the current
ENTER
7-12
1
│
│
│
│
│
│
│
to
1
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