7 Maintaining the product
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2. Connect the instrument to the PC with a mini USB cable.
- Instrument is identified by the PC as a USB mass storage
device. The operating system automatically assigns the
instrument memory a drive letter. This is displayed in Windows
Explorer.
When the instrument is connected to the PC, the
instrument control keys are locked. As soon as the
instrument is disconnected from the PC, it can be operated
again via the control keys.
3. For carrying out an instrument readout via testo EasyClimate
software and processing data, see separate testo EasyClimate
software instrument manual.
7 Maintaining the product
Cleaning the instrument
> If the housing of the instrument is dirty, clean it with a damp
cloth.
Do not use any aggressive cleaning agents or solvents! Weak
household cleaning agents and soap suds may be used.
7.1.1. Battery care
> Charge new rechargeable battery fully before commissioning.
> At low ambient temperatures, the rechargeable battery running
time decreases. This reduces the available useful life.
> Do not store the rechargeable battery for long periods when
discharged. (The best storage conditions are at 50-80 % charge
level and 10-20 °C ambient temperature; charge fully before
using again).
> The rechargeable battery life depends on the storage, operating
and ambient conditions. The available useful life of the
rechargeable battery reduces more and more with frequent use.
If the useful life is significantly shortened, the rechargeable
battery should be replaced.
7.1.2. Carrying out humidity adjustment
In humidity calibration, the measurement parameter of the
connected probe is adjusted to the reference value at the two
standard adjustment points 11.3 % RH and 75.3 % RH and the
deviations between the measuring value and the nominal value are
minimised across the entire measuring range.
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