Accessing Data; The Operational Menu - Crowcon IR Display Instructions D'installation, D'utilisation Et De Maintenance

5.1 The operational menu

The gas concentration will be displayed after startup is completed. The screen below will
show when the IRmax is measuring gas as 23% of the LEL*.
To see other data, click or hold the 'Up' key to cycle through the options. The gas display
will be restored 10 minutes after the last key press.
Other items in the operational menu are shown in the Table below.
Data showing
Obscuration of
detector optics
Supply voltage
Output current
* Lower Explosive Limit, the minimum concentration in air at which ignition can occur.
For data other than the gas level the screens alternate to show the number and the unit
as in the table below. The two screens above would be shown if the analogue output is
5.1 mA.
Units
%
V, to one decimal place
mA, to resolution of
0.1 mA
Screen 1

5. Accessing data

Screen 1 alternates
with...
[Obscuration level]
[Voltage level]
[Signal level]
Screen 2
Screen 2
OBSC
V
MA
11