9
The MAX screen will be shown for 5
seconds. The instrument will then
automatically return to the months or days
remaining screen (unless an alarm
condition is present).
2.2.2 View alarm levels
To view the current gas alarm levels, from
the current gas reading screen, press and
hold the MODE button for about 5
seconds until the display test screen is
shown.
Release the MODE button. The software
will proceed through the software version
and serial number screens before
showing the alarm levels.
→
The instrument will then return to normal
operation and display the months
remaining screen.
2.3 Calibration due notices
When the calibration due notice is
enabled and the ToxiLtd is due for fresh
air calibration “0-CAL will be displayed at
the bottom of the current gas readings
screen along with the triangular warning
symbol.
When the calibration due notice is
enabled and the ToxiLtd is due for span
calibration the calibration bottle icon will
be displayed at the bottom of the current
gas readings screen along with the
warning symbol.
The bump test due notice is designed for
instruments that are processed in an IQ
Express Dock. When the bump test due
notice is enabled and the ToxiLtd is due
for a bump test, the calibration bottle icon
will be displayed at the bottom of the
current gas readings screen without the
triangular warning symbol.
Note: If an IQ Express Dock is
unavailable, a manual span calibration
will also reset the bump test due
notice.
2.4 Low battery alarms
When the ToxiLtd determines that the
battery life is getting low, the battery icon
will be lit.
Note that “MONTHS” or “DAYS” and
the number of months or days of
operating life remaining are still shown
when the battery icon is lit.
When the ToxiLtd determines that there
are only a few hours of battery life
remaining, the battery icon and the
triangular warning symbol on the LCD will
be shown. At this point the audible alarm
will begin to chirp once per minute.
When the battery reaches a level where it
can no longer power the instrument, the
ToxiLtd will sound the battery shut down
audible alarm while displaying OFF with
the danger, caution and battery icons.
Press MODE to turn the instrument off. If
the MODE button is not pressed, the
instrument will remain in alarm for as long
as it can before shutting itself down. The
following screen will be shown after the
instrument is shut down.
In the event that the instrument actually
shuts itself down due to low battery levels,
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