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Gas Tracer Operator’s Manual, CSA Version
Measuring Mode, Normal Operation • 33
Measuring Mode, Normal Operation
The Gas Tracer has three operating modes within Normal Mode: Measuring
Mode, Display Mode, and Calibration Mode. This section describes using the Gas
Tracer in Measuring Mode during normal operation.
In Measuring Mode the Gas Tracer continuously monitors the sampled
atmosphere and displays the gas concentrations present for its target gases. In a
low-light environment, press and release any button to turn on the display
backlight. See “Updating the LCD Back Light Time Setting” on page 152 to
program backlight duration. If BEEP. SET menu item in Maintenance Mode is
turned on, the Gas Tracer beeps once every 5 minutes to confirm that it’s
operating. See “Updating the Confirmation Beep Setting” on page 146 for
instructions to update the setting.
Monitoring an Area
1. Start up the Gas Tracer as described above in “Start Up, Normal Mode” on
page 25 or “Turning On the Gas Tracer in Normal Mode With All Modes
Active”. It is now in Measuring Mode.
2. Take the Gas Tracer to the monitoring area.
If the tapered rubber nozzle is used, put the nozzle tip in the area to be
monitored.
If the hose and probe is used, put the probe tip in the area to be monitored.
3. Wait 10 - 15 seconds and observe the display for gas readings. If a reading is
observed, allow the reading to stabilize to determine the gas concentrations
present.
NOTE:
Response time increases with the length of the sample hose. Long
sample hoses will require more time to show a response at the Gas
Tracer. The maximum sample hose length recommended for the Gas
Tracer is 50 feet. Consult RKI Instruments, Inc. for longer sample hose
lengths.
4. If a gas alarm occurs, take appropriate action. See “Responding to Alarms” on
Using Optional Probes and Fittings
This section describes how to use the 8 meter hose with floating head and the purge tee
fitting.
Using the 8 Meter Hose with Floating Head
This probe is designed to be used in a tank or a well that may have water or some
other liquid at the bottom. To use the 8 meter hose with floating probe:
1. Start up the Gas Tracer as described in “Start Up, Normal Mode” on page 25.
2. Connect the 8 meter hose with floating probe to the Gas Tracer’s quick connect
inlet fitting.