Diagnostics and troubleshooting
Leuze electronic
DDLS 548i
56
Tab. 8.2:
TMP LED displays - Causes and measures
LED
Color
State
possible causes
Measures
TMP
Orange Continuous
light
The operating temperature is
above or below the specified
range by up to 5 °C.
Check ambient temperature.
• Initiate measures for lowering the am-
bient temperature.
Red
Continuous
light
The operating temperature is
above or below the specified
range by more than 5 °C.
Check ambient temperature.
• Initiate measures for lowering the am-
bient temperature.
Note
Data transmission remains active if above or below the operating temperature.
An operating hour counter is started internally that records the operating time outside of the specified op-
erating temperature.
In this case, the laser diode is excluded from guarantee services.
Tab. 8.3:
LSR LED displays - Causes and measures
LED
Color
State
possible causes
Measures
LSR
Orange Continuous
light
The laser diode of the trans-
mitter is nearing the end of its
life expectancy.
• Contact Leuze electronic customer
service (see chapter 11 "Service and
support").
• Send in the device for replacement of
the laser diode.
Note
Data transmission remains active until no LEDs illuminate in the SIGNAL QUALITY indicator due to de-
creasing laser power.