Controlling The Irmax; Menus And Password; Functions Available On The Irmax Menu - Crowcon IR Display Instructions D'installation, D'utilisation Et De Maintenance

9. Controlling the IRmax

9.1 Menus and password

The IR Display can be used to adjust the IRmax as necessary.
To access the functions available (see table below), press and hold the Enter key. The screen
will display the word 'MENU'. The backlight will light at the same time.
Press the 'Enter' key again. At the password (PWD) prompt, enter a combination of the
three buttons below the display.
The default password is 'Up', 'Down', 'Enter' – press each button once going from left to
right.
Once the password is accepted, the 'ZERO' function is indicated.
If the password is incorrectly entered or not entered in time, the display will return to the
normal gas level screen.
After an operation is complete, the display should show the name of a menu function.
After 5 minutes, the function menu will time out. The display will then revert to showing
the gas level.

9.2 Functions available on the IRmax menu

For more details on how to use each function see below.
Use the 'Down' Name
key to scroll
ZERO
through the
functions.
CAL
Press 'Enter'
to select a
particular
TRIM
function
SPAN
RAMP
VER
EXIT
16
Function
Zero the IRmax.
Calibrate the IRmax while a
reference gas is applied.
Zero adjustment of the analogue
output.
Adjust the output level with gas
applied.
Set the analogue output to a
particular value for a control panel
test.
Display the version number of the
software installed in the iModule,
Host or Display.
Select this option when you have
finished using the menu functions.
See
page 17
page 18
page 19
page 21
page 22
page 22