Safety feature table – Liebherr WKt 4552 GrandCru User Manual
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Laboratory appliances
with Comfort-Controller
LKUv 1610
LKUv 1612
LKUexv 1610 LGUex 1500
LKv 3910
LKv 3912
LKexv 3910
LGex 3410
LCv 4010
Spark-free interior
No
No
Yes
Yes
No
No
Yes
Yes
No
High / Low temperature alarm, au-
dio and visual
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Door-open alarm, audio and visual
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Power failure warning after power
supply is returned, visual
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Volt-free contact for external alarm
signal
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
RS 485 data transfer interface
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
RS 485 / RS 232 converter with
data monitoring software
Accessory
Accessory
Accessory
Accessory
Accessory
Accessory
Accessory
Accessory
Accessory
NTC product temperature probe
Accessory
Accessory
Accessory
Accessory
Accessory
Accessory
Accessory
Accessory
Accessory
Internal alarm memory
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Min. / Max. temperature memory
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
+2°C safety thermostat
Yes
Yes
Yes
No
Yes
Yes
Yes
No
For refrigerator
compartment
Access port for e.g. PT 100 probe
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Probe failure alarm
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Safety feature table
Low temperature freezers
to – 45 °C
LGT 2325 LGT 3725
LGT 4725
Spark-free interior
No
No
No
High / Low temperature alarm
audio and visual
Yes
Yes
Yes
Lid-open alarm,
audio and visual
Yes
Yes
Yes
Power failure warning after power
supply is returned, visual
Yes
Yes
Yes
Volt-free contact
for external alarm signal
Yes
Yes
Yes
RS 485 data transfer
interface
Yes
Yes
Yes
RS 485 / RS 232 converter with
data monitoring software
Accessory
Accessory
Accessory
NTC product temperature probe
Accessory
Accessory
Accessory
Internal alarm memory
Yes
Yes
Yes
Min. / Max.
temperature memory
Yes
Yes
Yes
Access port for e.g. PT 100 probe
Yes
Yes
Yes
Probe failure alarm
Yes
Yes
Yes
LK(U)v, LCv, LK(U)exv, LG(U)ex and LGT laboratory appliances with Comfort-Controller