Siemens SIMATIC HMI Operating Instructions Manual page 84

Installation and connection
4.8 Inserting, charging and changing the battery
The battery is a lithium ion battery. The following safety notes apply to these rechargeable
batteries:
• Do not crush
• Do not expose to heat and do not burn
• Do not short-circuit
• Do not take apart
• Do not submerge in liquids - the battery could crack or explode.
• Store unused batteries away from the following items, which can cause the contacts to
CAUTION
Possibility of rampdown while logging onto effective range
If the HMI device no longer recognizes the transponder and, therefore, the measuring
range, it triggers a rampdown.
To change the battery, rest the HMI device on its front. Align the HMI device so that it is still
possible to measure the distance between the HMI device and the transponder.
If possible, log the HMI device off from the effective range.
CAUTION
Malfunctions
If the HMI device is resting on its front, the following can be activated:
• The emergency stop button
• The key-operated switch or an illuminated pushbutton
ESD
When working in the open housing, ensure that current-carrying conductors do not come
into contact with electrical circuits.
Note the ESD instructions.
NOTICE
Only use batteries that are approved for the HMI device.
84
CAUTION
be bridged.
– Paper clips
– Coins
– Keys
– Nails
– Screws or other small metal objects
This can bring the system to a standstill unintentionally.
This can result in malfunctions.
Mobile Panel 277F IWLAN
Operating Instructions, 12/2007, A5E01003940-01