Zehnder CO2 RF Manuel D'utilisation page 22

The 6 brightness settings for the LEDs can
be adjusted from high to low:
■ there are 4 settings descending from
bright to dim;
■ there is 1 setting where the LED is only
visible in case of warnings;
■ for the last setting the lighting is switched
off completely in all cases except during
operation.
1. Press the operating button for 5 seconds
to start the menu.
■ All LEDs blink green 3 times.
■ Depending on the type of device,
the bottom LED (RF type) or the
middle LED (0-10V type) flashes red
for 30 seconds. The CO
flashes red.
2. Briefly press the operating button to
select the brightness menu.
■ The top LED flashes red.
3. Press the operating button for 5 seconds
to enter the brightness menu.
■ All LEDs blink green 3 times.
4. Briefly press the operating button to
select a different brightness.
5. Repeat step 4 until the desired brightness
is selected.
The mode in which only warnings are
shown is indicated by a red CO
during this selection.
The mode in which the lights are off
is displayed during this selection
because all the LEDs are off.
22 - EN
LED also
2
LED
2
6. Press the operating button for 5 seconds
to confirm the selection.
■ All LEDs blink green 3 times.
7. Brightness adjustment is complete and
the CO Sensor returns to standard
2
functionality.