TESTO 327 - Operation with mains unit; Switching on;off; Performing instrument settings

First steps10
Operation with the mains unit
If the mains unit is connected, the measuring instrument is automatically
powered from the mains unit. It is not possible to charge the rechargeable
battery in the measuring instrument during operation.
1 Connect the plug of the mains unit to the mains unit socket on the
measuring instrument.
2 Connect the mains plug of the mains unit to a mains socket.
- The measuring instrument is powered via the mains unit.
- If the instrument is switched off and a rechargeable battery is inserted,
the charging process will start automatically. Switching the measuring
instrument on has the effect of stopping rechargeable battery charging
and the measuring instrument is then powered via the mains unit.
Switching on/off
➣
Switching the instrument on:
❯ Press .
- Initialisation phase:
· All display segments are lit (length of time: 3 s).
· Serial number, firmware version, instrument designation, date, time and country-
specific version of instrument are displayed (length of time: 5 s).
- The Measure flue gas option is displayed.
➣
Switching the instrument off:
❯ Press .
- sometimes: The pump starts and the measuring cells are rinsed until the
switch-off thresholds (O
2
>20 %, other parameters 50 ppm) are reached.
Rinsing lasts no more than 2 minutes.
Performing instrument settings
➣
Performing settings:
1 Press .
2 Select Settings using / and confirm entry with the OK function key.