TESTO 400 - 11 Maintenance; Rechargeable Battery Care; Notifications

11 Maintenance
100
2
Click Next or Cancel.

Individual apps and additionally installed apps can be closed manually.
E-mail and Bluetooth
®
settings can be reset.
If always has been selected for the data export, the setting can be
undone in this menu. This means that both export options will be
available again in the future.
11 Maintenance
11.1 Rechargeable battery care
Battery replacement may only be carried out by Testo Service.
• At low ambient temperatures, rechargeable battery performance decreases.
This reduces the available useful life.
• Do not store the rechargeable battery for long periods when discharged.
(Best storage conditions at 50-80% battery level, 10-20 °C ambient
temperature.) Fully charge before using again.
• 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.
11.2 Notifications
In the main menu, notifications are marked with an orange dot next to
the menu entry. Depending on the menu entry, these notifications
contain different information.
Menu entry Information
Sensors
Calibration reminder:
The reminder date of a stored
calibration certificate has been
exceeded (see Section 9.7.2).
Help and Information, Instrument
information
Update information:
A software update is available on the
Testo server. This can be downloaded
with an existing WLAN connection
(see Section 10.1).