5.3 Option 3: Pressure Measurements
a. From the ‘Home’ screen, press the button for ‘Start’.
b. Disconnect all sample tubes. When readings return to zero,
press the button for ‘Next’. If readings do not return to zero,
press the button for ‘Zero’ to zero the transducers before
pressing the ‘Next’ button.
c. Connect the white sample tube to the white port and also to the
sample point. Ensure the yellow and/or blue tubes are vented to
the atmosphere. Press ‘Next’.
d. On the ‘Home’ screen, wait for relative pressure readings to
stabilize and then press the button for ‘Next’.
e. Pressure readings have now been fixed and recorded.
5.4 Option 4: Gas Measurements
a. Attach the clear tubing to the white port of the device and
connect that to the sample point.
b. From the ‘Home’ screen, press the ‘Special Actions’ button and
select ‘Simple Gas’ by pressing the number 1 key.
c. The pump will start drawing in the sample. It will continue to
do this until the fan counter reaches zero (shown in the
upper-right of the screen).
d. Press the ‘Store’ button to save the readings.
6 Shutting the GA5000 Down
a. Disconnect all sample hoses.
b. Press the fan button.
c. Allow the fan counter to reach 20, or the gas readings to return to
zero (except for Oxygen which should read around 20.9%).
d. Press and hold the red power button until the screen shows that it
is carrying out a purge.
e. Allow the purge counter to reach zero, after which the device will
turn itself off.
Quick Start Guide GA5000
Author: Jordan Widodo Version 1.0: 13/12/2017
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