USB
recognised
3.3
3.1
3.2
2.1
2.3
3.4
4.2
4.1
FIL
TRA
TION
230 V
~
Neutral
Earth
Phase
2.2
FIL
TRA
TION
230 V
~
Neutral
Earth
Phase
2.3
P.U.
44
MAESTRO probe unit: How to update the internal firmware
4.1 - Unplug the USB stick
4.2 - The red LED flashes for 40 sec then goes out.
4.3 - The green LED continues to flash
3.1 - Connect the USB stick to the end of the USB cable
3.2 - Connect the USB cable supplied to the mini USB connector of the
MAESTRO probe unit.
3.3 - The red LED goes out.
3.4 - Wait for the green LED to remain lit for 5 sec.
1.1 - Unzip the MAESTRO Probe UnitXXX.zip file to obtain the
Pxxxo.bin. file.
1.2 - Copy the Pxxxo.bin file to the main folder of the USB stick
formatted to FAT 16 or FAT 32.
2.1 - Remove the flexible blue cover of the Control Center and the Probe Unit.
2.2 - Cut the supply of the control center via the 1-A 230-V fuse using a
flat screwdriver to unscrew the fuse holder
(half turn), wait 5 sec.
2.3 - On the Probe Unit, press and hold the “radio learning” button, then
on the Control Center, re-connect the supply (screw the 1A fuse back in),
the red and green LEDs flash.
