RKI Instruments GX-94 - Manual (Page 30)

Page 29 GX-94 Operator’s Manual
Updating the Gas Combination (2. COMBINE GAS)
Sets the display and circuitry for types of gases to be detected; there
are 11 possible combinations. Press AIR/
▲ or (SHIFT)/ ▼ to scroll
through the combinations. Press ON/OFF/INPUT to accept the selected
combination.
Note
Change the GAS COMBINATION values only when the
appropriate sensors are installed in the corresponding sensor
sockets. Calibrate immediately after changing sensor combi-
nations.
Gases selected in this operation will be displayed throughout
all setup and normal display screens.
Viewing & Setting Alarms (3. SET ALARM)
Sets the alarm levels for gases detected by the GX-94. Press AIR/ ▲ to
change the alarm level for a single gas, or DISPLAY/(ADJ) to skip that
channel.
Press AIR/ ▲ to raise an alarm level, or (SHIFT)/ ▼ to lower the alarm
level. Hold down the button to scroll quickly through the alarm setting.
The lowest available setting for each alarm point is “off.”
Press ON/OFF/INPUT to accept the displayed alarm value and move to
the next alarm or gas.
• SET ALARM <HC>
Allows the user to change LOW and HIGH HC alarms for
combustible gas.
• SET ALARM <O2>
Allows the user to change the LOW and HIGH %O
2
alarms.
Remember that the LOW O
2
alarm is a decreasing alarm, for falling