Troubleshooting; Switching Off - TESTO 350 M/XL Getting Started

· Readings from the probe attached to the analyser box are shown.

Troubleshooting:

Defect
LED1 on analyser box is flashing red:
Control Unit cannot be switched on.
Probes are not recognised.

4.4.3 Switching off

Switch off Control Unit using
Switch-off phase
The measurement box checks if there are still flue gases in the sensors. It is rinsed with
fresh air until 20.5 % O2, for example, is reached.
After the switch-off phase, the instrument enters the battery recharging mode with the
mains adapter attached.
The fact that the ventilator continues to run is normal, also during recharging when
the mains cable is attached.
Cause
Rechargeable battery pack is empty.
No power to Control Unit.
Rechargeable battery pack is empty.
Probes are not connected correctly.
Probes are defective.
.
4. Initial operation 31
Remedy
Recharge battery.
Check if:
databus cable/current cable
is properly inserted.
instruments are properly
connected to each other
via contact strips.
Recharge battery.
Connect probes correctly.
Exchange probes.