TQ Environmental LTD
Product Manual TQ 4000
Filename: 7970H8 Page 13 of 27
before the alarm is generated. During the alarm delay the appropriate
alarm LED’s will flash intermittently while the gas concentration has
exceeded the alarm set point. The default setting is for no alarm delay,
that is, 0 seconds. The alarm delay time is altered using the UP and
DOWN buttons. To accept the alarm delay the user must press the
SELECT button.
2.3.5.4. Set Alarm 1 Latch State
This option allows the user to toggle between latched alarms or
unlatched alarms for the first alarm point level. If set for latched alarms,
the user must press the RESET button to reset the alarm. If set for
unlatched alarms, the system will automatically clear the alarm
condition provided the gas concentration is back within the alarm point
level. The default setting is for latched alarms. The UP and DOWN
buttons are used to toggle between latched and unlatched alarms. To
accept the alarm 1 latch state the user must press the SELECT button.
2.3.5.5. Set Alarm 2 Latch State
This option allows the user to toggle between latched alarms or
unlatched alarms for the second alarm point level. If set for latched
alarms, the user must press the RESET button to reset the alarm. If set
for unlatched alarms, the system will automatically clear the alarm
condition provided the gas concentration is back within the alarm point
level. The default setting is for latched alarms. The UP and DOWN
buttons are used to toggle between latched and unlatched alarms. To
accept the alarm 2 latch state the user must press the SELECT button.
2.3.5.6. Set Alarm 3 Latch State
This option allows the user to toggle between latched alarms or
unlatched alarms for the third alarm point level. If set for latched
alarms, the user must press the RESET button to reset the alarm. If set
for unlatched alarms, the system will automatically clear the alarm
condition provided the gas concentration is back within the alarm point
level. The default setting is for latched alarms. The UP and DOWN
buttons are used to toggle between latched and unlatched alarms. To
accept the alarm 3 latch state the user must press the SELECT button.
2.3.5.7. Exit Sub Menu
Pressing the SELECT button will exit from the alarms sub menu and
return the user to the main menu.
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