RKI Instruments Gas Tracer - Manual (Page 54)

46 • Display Mode Gas Tracer Operator’s Manual
NOTE: Each screen displays for 20 seconds. If you do not press the
DISPLAY (ADJ) button to scroll to the next screen or press the
POWER ENTER button to enter an item within 20 seconds,
the Gas Tracer automatically returns to Measuring Mode.
HC Range Screen
This screen displays only if your Gas Tracer is equipped with both the
catalytic % LEL combustible sensor and the TC % volume combustible
sensor. It allows you to select the display units for the combustible
channel as % LEL/% volume autoranging or % volume. If
autoranging is selected, the combustible gas reading will be displayed
in % LEL up to 100% LEL, which is equivalent to 5% volume for
methane (CH
4
). Above 100% LEL, it will be displayed in %volume. If
% volume is selected, the combustible gas reading will be displayed in
% volume only.
CAUTION: If the combustible channel is set for % volume only, then there
are no gas alarms for any detection channel and NO ALARM
will appear in the upper left corner of the screen when you
return to Normal Operation.
To update the HC range setting:
1. After entering Display Mode and arriving at the HC Range Screen,
press and release the POWER ENTER button. The current setting
will appear at the bottom of the LCD.
2. Use the AIR▲ or (SHIFT)▼button to change the setting.
3. Press the POWER ENTER button to save the change.
4. Press the DISPLAY (ADJ) button to advance to the next screen.
HC
SEL
22:39
HC RANGE