Siemens SIMATIC Mobile Client900WXN Operating Instructions Manual page 64

Operating the mobile client
5.4 LED display
1
64
Temperature "TEMP" LED Comments
in the
device is
Too low Lit red
1
Very low Flashing red,
3 Hz
Low Flashing red,
0.5 Hz
Optimum Off
High Flashing red,
0.5 Hz
Very high Flashing red,
3 Hz
Too high Lit red
1
The "TEMP" LED on the Mobile Client lights up when the temperature is too low or too high.
Power off the device immediately. The device cannot be powered
back on again immediately.
You are urgently advised to move the device to warmer
surroundings. If the device is switched on in this condition, the
device temperature will usually rise significantly over time as a
result of the waste heat generated and become non-critical.
Increasing the display brightness can improve the situation as this
generates more heat.
The device temperature is low.
You are advised to move the device to warmer surroundings. If the
device is switched on in this condition, the device temperature will
usually rise significantly over time as a result of the waste heat
generated and become non-critical.
Increasing the display brightness can improve the situation as this
generates more heat.
For handheld operation, you can generally assume that no part of
the device surface is at a dangerous temperature and that the
device can therefore be held for at least 10 minutes without the
risk of injury/damage from heat.
You are advised to move the device to cooler surroundings. If the
device is switched on in this condition, there is a risk that device
temperature will rise significantly over time as a result of the waste
heat generated and become critical.
For handheld operation, you can generally assume that all parts of
the device surface are below 43 °C and that the device can
therefore be held for at least 5 minutes without the risk of
injury/damage from heat.
Reducing the display brightness can improve the situation as this
generates less heat.
You are urgently advised to move the device to cooler
surroundings. If the device is switched on in this condition, there is
an imminent risk of the device temperature rising rapidly and
significantly as a result of the waste heat generated, and
becoming critical.
For handheld operation, you can generally assume that all parts of
the device surface are below 60 °C and that the device can
therefore be held for at least 1 minute without the risk of
injury/damage from heat.
Reducing the display brightness can improve the situation as this
generates less heat.
Power off the device immediately. The device cannot immediately
be switched on. If the device is off, check whether the ambient
conditions are suitable for storage of the device.
There is an immediate and serious risk of injury from hot surfaces.
Operating Instructions, 04/2015, A5E35883103-AB
Mobile Client900WXN