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Installation guide/Electronic part replacement (non-SIL devices only)
Liquid Level Switch
Type LLS 4000 / LLS 4000U
Warning! This is a Class A device. This
device may cause radio interference in
residential areas. In case of interference,
the operator may be required to take
appropriate measures. This instrument
has to be mounted on a metallic tank.
The device is intended to be used in
industrial areas.
Fig. 1
Fig. 2
© Danfoss | DCS (ms) | 2020.03
M12 male Electrical
connector
Heat sink (do not cover)
Hexagon 32 mm
Process connection
G ¾" or ¾" NPT
Liquid sensing part
O-ring
Cover disassembled LLS
to avoid any access of
particles, moisture or
dirt
AN331327770735en-000101 | 1
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Summary of Contents for Danfoss LLS 4000
- Page 1 Installation guide/Electronic part replacement (non-SIL devices only) Liquid Level Switch Type LLS 4000 / LLS 4000U Warning! This is a Class A device. This device may cause radio interference in residential areas. In case of interference, M12 male Electrical the operator may be required to take connector appropriate measures.
- Page 2 O-ring tooling Fig. 3 Hand-tighten clockwise until O-ring is compressed and mechanical stop is reached (max torque 5 Nm/3.7 lb ft) Hand-tighten clockwise Fig. 5 Fig. 4 2 | AN331327770735en-000101 © Danfoss | DCS (ms) | 2020.03...
- Page 3 ** 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 © Danfoss | DCS (ms) | 2020.03 AN331327770735en-000101 | 3...
- Page 4 LLS Bluetooth app download LLS 4000 download ABCDEFGHIJKL Search Danfoss LLS 4000 Configuration LLS______ LLS______ _ Configurable Pin code: 0000 4 | AN331327770735en-000101 © Danfoss | DCS (ms) | 2020.03...
- Page 5 Calibration (To be performed after replacement of Electronic part and always with LLS sensor head in gas phase) Calibration can only be done while the LLS device is in gas © Danfoss | DCS (ms) | 2020.03 AN331327770735en-000101 | 5...
- Page 6 - If media detection or non-detection by the level switch could generate a hazard the SIL version and specific instructions described in the safety manual (periodic proof test) should be used. The SIL safety manual can be downloaded from Danfoss web site or by scanning the QR code below.