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Gas Tracer Operator’s Manual, CSA Version
Using Maintenance Mode • 139
2. Press and release the POWER ENTER button. The screen will indicate the
current setting.
3. Use the AIR
▲
or (SHIFT)
▼
button to display the desired setting.
4. Press and release the POWER ENTER button to save the setting and return to
the main menu.
Updating the Alarm Point Settings
The ALARM--P menu item allows you to update one or more warning, alarm,
STEL, and TWA (for CO) settings (the reading at which the Gas Tracer recognizes
these conditions).
For the combustible gas channel, it is not possible to adjust either the Warning or
Alarm settings to be higher than 60 %LEL. In addition, the Warning setting cannot
be adjusted higher than the Alarm setting for all channels.
NOTE:
It is not necessary to adjust every setting for every channel when you
enter this menu item. All settings are shown here for example.
1. Use the AIR
▲
or (SHIFT)
▼
buttons to display the ALARM--P menu item.
Press and release the POWER ENTER button.
2. You may then select a channel. Use the AIR
▲
or (SHIFT)
▼
buttons to select a
channel. The combustible gas channel is shown for example.
Table 7: Factory Set Alarm Points
Channel
Warning
Alarm
STEL
TWA
Combustible Gas
10% LEL
50% LEL
N/A
N/A
Oxygen
19.5% decreasing
23.5% increasing
N/A
N/A
CO
25 ppm
50 ppm
200 ppm
25 ppm
300
MAINTENANCE
LG INTVL
- - -
%LEL
MAINTENANCE
CH
4
ALARM--P