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Teledyne Analytical Instruments
10
Operation
Drawing A Sample
The following is a general procedure check list to start and use the gas analyzer.
1. Place the POWER switch in either the Batt. or Ext. position. The LCD will
display O2. (Note: the O
2
reading will not display until the SAMPLE button has
been pressed.)
2. Connect the sample line to the Sample Connector located at the top of the
analyzer. Ensure that there is an inline filter in the sample line. Failure to use
the inline filter may cause damage to the sensor and sample pump.
3. Place or connect the end of the sample line to the space to be sampled.
A) M.A.P. – Insert the sample needle into the package’s head space. Avoid
placing the needle into product or fluid.
4. Press the SAMPLE button. The sample pump will draw in a gas sample and the
current O
2
reading will be displayed. The pump will continue to run until the
Sample Duration times out or until the SAMPLE button is pressed again.
If the Auto Hold function is on, then the O
2
displayed value will lock when the
pump stops.
Note: The duration of sample time will vary from one application to another. In
general, the longer you draw in a sample, the more accurate the gas analysis will
be. Adjustments of the Sample Duration timer will be needed to find the right
amount of sample time for your specific application.
5. Press the Light ON button to turn on the LCD Back Light.
Sample Duration
The Sample Duration timer allows you to set the number of seconds the pump will
run and draw in a sample after the SAMPLE button is pressed. The sample pump
may be stopped at any time by pressing the SAMPLE button. This timer can be
adjusted in the parameter menu.
Placing the Sample Duration timer to zero (0) seconds sets the pump to a manual
mode. Press the SAMPLE button to start the pump. The pump will continue to run
until the SAMPLE button is pressed again.
Sleep Mode Timeout
The Sleep Mode Timeout allows you to set the number of minutes the analyzer will
wait without any button activity before going into the battery saving sleep mode.
This timer can be adjusted in the parameter menu.