Honeywell Apex Technical Handbook page 68

MAN0604_Issue 09_02-2013
2110M8030
Configure Alarms
Caution: Alarm 2 value can be set below Alarm 1 value.
When installed to measure flammable gas it is essential that
either the Transmitter unit or control network is configured to
!
Change cartridges using the procedure described below.
latch the overrange condition. If the Transmitter unit local
Failure to correctly follow this procedure could result in the
relays are used this should be achieved by enabling the
wrong cartridge being installed, and possibly non-detection
overrange latching function of the Transmitter unit. Depletion
of events. Alternatively, extraneous alarms could be
of oxygen as a consequence of displacement by flammable
triggered by chemicals detected but not of concern at a
gas can result in the gas reading returning to zero.
particular location.
Sensor Cartridges may contain corrosive solutions.
Dispose of according to local and national regulations.
Provides the means to configure the point at which the alarms activate and whether overrange
latching is required. The range of settings depends on the type of gas cartridge fitted to the
Certified Sensor.
When the Transmitter Unit's alarm thresholds are changed, the actual cartridge parameters are
updated to reflect the Transmitter Unit's configured values.
The default state for Overrange latching is not latched.
When activated, overrange latching causes the Transmitter Unit to latch the A1 and A2 Alarm relays
and the 4-20mA output if an overrange gas condition is detected. Overrange latching only effects
alarm relay latching after an overrange condition, not at the A1 and A2 alarm thresholds. Overrange
latching only operatesin the normal Transmitter Unit active condition, not in Gas Challenge or
Gas calibrate conditions.
4. OPERATION
WARNINGS
Configure Alarms
ok
Configure Alarms screen
Select alarm
action to
configure
ok
Set alarm value
or overrange
latching on/off
ok
No
Select another option?
Yes
ok
68
Configuration Menu
Use up/down buttons to
choose setting from:
Alarm1 Relay
Alarm2 Relay
Overrange Latching
Use up/down buttons
esc
Configuration
Menu
Apex