© Danfoss | DCS (ms) | 2020.05
4 | AN317523977313en-000201
Red light LED
Yellow light LED
Green light LED
Fig. 9
Level
Open at no
Liquid
(Normally
Open)*
Closed at no
Liquid
(Normally
Closed)*
Voltage
connected
Level detection LLS 4000/4000U
Fault
Green LED
Yellow LED
Red LED
High Level
sensor
High Level
sensor
Low Level
sensor
Low Level
sensor
Voltage supply
outside
spec.
–
LLS 4000/4000U
fault
**
–
***
Green LED ON
Yellow LED ON
Red LED ON
Green LED Flashing.
LLS 4000/4000U
connected to
Bluetooth device
* Configuration dependent. Non-SIL2 fully configurable. SIL2 fixed configuration and only applicable for High Level sensor
** For failure types please connect the device to the Bluetooth App, enter fault state mode, and read the failure type
*** Fault can be detected at any detected level, ie. 2 or all 3 lights on
SIL2 fixed
configuration
Not recommended in these applications because
1)
A High Level Alarm may not be registered at a power failure
2)
A Low Level Alarm may not be registered at a power failure
1)
2)
