8067 MANUAL
Matheson Tri-Gas
Page 10 of 21
MINT-0313-XX
Functions
The 8067 instruments have a variation of functionality,
Contrast
Use this function to adjust the contrast of the 8067 LCD (Liquid Crystal Display).
Significant variations in ambient temperature conditions can cause the display to
appear too dark or feint.
When this function is selected a number will appear to the right of the Contrast
symbol as a percentage. Use the Up and Down keys to adjust the display contrast to
the desired level. When satisfied with the desired level selected, press the Esc key
to exit to the main menu.
Backlight
The user can select either Backlight On or Backlight Off.
In daylight the user may not be able to determine if
the backlight is On or Off, therefore a symbol on the
main running screen shows the status.
When the backlight is 'ON' it significantly reduces battery life.
Backlight OFF = 40hrs of use, Backlight ON = 20hrs of use.
Sound
The 8067 has an audible sounder that increases
frequency as detected gas levels increase. This sounder
can be switched On and Off. Use the Up or Down key to
move the 'tick' to the desired position and then press the
'Esc' key to return to the Main Menu.
An audible 'beep' can also be heard when ever the key pad is pressed, this beep
can not be switched off.
Peak hold
When selected, this function holds the highest detected reading on the display until
the 'ENTER' key is pressed.
Select Peak On or Off using the 'Up or Down' key and
then press 'Esc' key to exit to the 'Main menu'.
When using the 8067, press the ENTER key to clear
the held reading.
The reading held on screen will be logged when the 'ENTER' key is pressed.
WARNING:
ZEROing the instrument in a contaminated environment will result in
false readings.
Calibration
2 & 3
There are two Calibration settings that can be selected;
Factory and Custom. Factory calibration is carried out
shortly after manufacture and cannot be adjusted,
however Custom calibration offers the ability to
calibrate the instrument between annual Factory
calibrations. The 8067 Zero's its reading at switch on,
therefore the Custom calibration routine only has one
stage.
Also see the ‘Calibration’ section of this manual.
