Commissioning (hardware)
4.5 Inserting / removing the battery
SITRANS TF280 WirelessHART
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Operating Instructions, 10/2010, A5E02619566-02
4.5
Inserting / removing the battery
CAUTION
Heating-up of device housing
Depending on the process connection, the device housing may become very hot during
operation.
Before replacing the battery, check the danger of burns. Wear gloves if necessary when
opening the housing.
CAUTION
Battery
Use of non-approved or damaged batteries may result in damage to the device or in the
environment.
Only use the battery type approved by the manufacturer. Before fitting a battery, check that
it is not damaged.
Note
Qualified personnel
Fitting and removal of the battery must only be carried out by qualified personnel. Additional
information is available under: Qualified Personnel (Page 9) .
Note
Positioning of battery
Selection of the mounting position influences the service life of the battery. Position the
battery such that the positive pole points vertically upwards as far as possible following
installation of the device.
Note
Depassivation of battery
As a result of longer service lives, it is possible that your battery may become passivated. If
you fit a passivated battery in your device, a low battery service life is shown in the display.
Reason: Passivated batteries do not initially provide their full capacity.
During operation, the device depassivates the battery, and the display of the battery service
life is corrected accordingly.
Requirements
● Battery replacement during operation: the deep sleep function is activated.