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5 First steps
4.2.
Basic properties
Power supply
Power is supplied to the instrument via:
•
Rechargeable battery, type: Li-Po rechargeable battery pack,
3.7 V/1500 mAh (can be replaced via Testo-Service)
•
USB mains unit including cable (0554 1105), 5.0 V/1000 mAh
With an attached mains unit, power is supplied automatically via
the mains unit and the instrument's rechargeable battery is
charged. To avoid destroying the rechargeable battery, only charge
it at an ambient temperature of 0 to 45 °C/32 to 113 °F.
5
First steps
Switching on
1. Switch instrument on: press
-
All segments of the display light up for around 1 sec.
-
The warm-up phase then occurs for 30 s. (information in
display: warm-up).
-
The current readings are displayed. The instrument is
operational.
Switching off
2. Switch off the instrument: press and hold down
12
Connect the humidity/temperature module (0636 9725)
before switching the instrument on (option).
During first commissioning, the configuration menu is
opened automatically, see Settings.
The CO sensor reading is displayed in the top line.
[
]
briefly.
[
].
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