Functions; Contrast; Backlight; Sound - ion science GasCheck Tesla Instrument User Manual

Functions

Contrast

Backlight

Sound

Peak hold

WARNING: ZEROing the instrument in a contaminated environment will result in false readings.

Calibration

Unrivaled Detection.
Use this function to adjust the contrast of the GasCheck Tesla's LCD (Liquid Crystal Display).
Significant variations in ambient light conditions can cause the display to appear too dark or
faint. 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.
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.
The GasCheck Tesla 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 whenever the key pad is pressed. This beep can be
switched off.
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 GasCheck Tesla, press the ENTER key to clear
the held reading.
The reading held on screen will be logged when the 'ENTER' key is pressed.
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 GasCheck Tesla
Zero's its reading at switch on, therefore the Custom
calibration routine only has one stage. Also see the
'Calibration' section of this manual.
GasCheck Tesla Instrument User Manual V1.2R
Page 11 of 26
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