8067 MANUAL
Matheson Tri-Gas
Page 14 of 21
MINT-0313-XX
Using the 8067
The 8067 instrument
WARNING: Before switching the 8067 on, ensure the ambient air is clean as the instrument automatically
Zero's the sensor at switch on. After the instrument has run through it's start up routine, adjust the instrument
settings to the desired levels. Check the instruments sensitivity using a calibration kit.
Switch the 8067 on by pressing the ON/OFF key, after the instrument
has completed its Zero routine it will enter it's normal running screen.
(see right)
Ensure the instrument is on the X100 (times one hundred) range, while on the main running screen use the
UP and DOWN key to adjust between sensitivity ranges. X100 is most sensitive, X1 is the least sensitive.
Gas leaks tend to occur at pneumatic joints or welded seams, hold the 8067 at a 45
o
angle to the object
being tested and drag the probe along the seam or joint at a rate of approximately 25mm per second.
When a leak is detected the bar graph will start to fill and the frequency of the audio output will increase but
will reduce as the probe moves away from the leak. Return the probe to the suspected leaking area and
move slowly along the same area until the leak is located, once located the probe should be held at the leak
until the numeric reading stabilizes.
The bar graph offers a graphical indication only and should not be used to measure a leak. You may find
that the graph completely fills, however the numeric reading will continue to increase. Should the instrument
detect a leak that is too large for the range selected the numeric screen will flash and display '99999'. Use
the UP or DOWN keys to adjust the instrument sensitivity.
Variation in temperature, humidity and background gas may result in a constant level being detected on the
instrument. To reset to Zero, hold the instrument away from the source of contamination and then press the
ZERO key. The instruments display will return to a near zero reading.
The following things will affect the instruments reading:-
* Breath of the instrument user contains both CO2 and moisture;
* Barometric air pressure and background temperature;
* Sources of cold and heat.
