LLS 4000 Liquid level switch

  • Overview
  • Documents
  • Software
  • Related products

LLS 4000 electronic Liquid Level switch - Replacing the floating valve for industrial refrigeration

The Danfoss LLS 4000 Electronic Liquid Level Switch is a compact, cost efficient, and reliable switch for liquid level measurements.

With simple, one-point installation, smart commissioning via Bluetooth, and next-level reliability thanks to its Safety Integrity Level classification, the LLS 4000 makes electric liquid measuring smarter and more reliable than ever.

With the LLS 4000, Danfoss is changing the electronic liquid level switch game entirely. Offering superior reliability, cost-efficiency and user-friendliness the LLS 4000 electric level switch offers superb performance compared to mechanical alternatives - at a competitive price

Constructed with the user mind, the LLS 4000 is easy to install with only one connection point, and it allows for replacement without emptying the subsystems. The LLS 4000 detects ammonia and H(C)FC making it a versatile choice. Additionally, Bluetooth connectivity makes commissioning fast and easy using any smart device.

Designed for superior reliability, the LLS 4000 meets the highest safety requirements – the Safety Integrity Level 2. The Safety Integrity Level 2 – or SIL2 for short – is a measurement of performance and reliability needed for products in in applications with high safety standards. The safety classification is a testament of the LLS 400 Electric Liquid Level Switch’s superior reliability.

Make safety a competitive parameter

Maintaining the highest level of compliance with industry wide safety standards is an essential part of maintaining a strong brand and reputation among your customers. By selecting Safety Integrity Level approved products, your customers get reliable, certified components they need to achieve their functional safety goals and ensure reliable performance.

Features and benefits

Compact solution

  • Ammonia and H( C )FC
  • Easy to install with only one connection point

Easy Commissioning

  • Bluetooth and smartphone compatible
  • Media, NO/NC

Easy Replacement

  • No need to empty the subsystem
  • Product design split into refrigeration and electronic part

Electronic Liquid Level Switch

With the LLS 4000, Danfoss is changing the electronic liquid-level-switch game entirely. Offering superior reliability, cost-efficiency, and user-friendliness, the LLS 4000 electronic level switch offers superb performance compared to mechanical alternatives – at a competitive price point.

Documents

Type Name Language Valid for Updated Download File type
Brochure Liquid Level Switch - LLS 4000 Arabic; Bulgarian; Czech; Danish; German; Greek (modern); English; Spanish, Castilian; Estonian; Persian; Finnish; French; Irish; Hebrew (modern); Hindi; Croatian; Hungarian; Indonesian; Icelandic; Italian; Japanese; Kazakh; Korean; Lithuanian; Latvian; Macedonian; Norwegian Bokmål; Dutch, Flemish; Polish; Portuguese; Romanian, Moldavian, Moldovan; Russian; Slovak; Slovenian; Serbian (RS); Swedish; Tamil; Thai; Turkish; Ukrainian; Vietnamese; Chinese (CN) Multiple 09 Feb, 2020 775.2 KB .pdf
Installation guide Liquid Level Switch Type LLS 4000 LLS 4000U English Multiple 13 May, 2020 3.0 MB .pdf
Installation guide Liquid Level Switch Type LLS 4000 LLS 4000U Ukrainian Ukraine 26 Jul, 2020 3.2 MB .pdf
Data sheet Liquid Level Switch Type LLS 4000 LLS 4000U Italian Multiple 01 Jul, 2020 2.3 MB .pdf
Data sheet Liquid Level Switch Type LLS 4000 LLS 4000U English Multiple 01 Jul, 2020 2.2 MB .pdf
Data sheet Liquid Level Switch Type LLS 4000 LLS 4000U French Multiple 01 Jul, 2020 2.3 MB .pdf
Data sheet Liquid Level Switch Type LLS 4000 LLS 4000U Spanish, Castilian Multiple 01 Jul, 2020 2.3 MB .pdf
Data sheet Liquid Level Switch Type LLS 4000 LLS 4000U German Multiple 01 Jul, 2020 2.3 MB .pdf
Data sheet Liquid Level Switch Type LLS 4000 LLS 4000U Chinese (CN) Multiple 01 Jul, 2020 2.3 MB .pdf
Data sheet Liquid Level Switch Type LLS 4000 LLS 4000U Russian Multiple 01 Jul, 2020 2.3 MB .pdf
Data sheet Liquid Level Switch Type LLS 4000 LLS 4000U Portuguese Multiple 01 Jul, 2020 2.3 MB .pdf
Data sheet Liquid Level Switch Type LLS 4000 LLS 4000U Ukrainian Multiple 13 Jul, 2020 2.3 MB .pdf
Installation guide Liquid Level Switch Type LLS 4000_LLS 4000U Installation guide_Electronic part replacement English Multiple 06 Apr, 2020 1.4 MB .pdf
Installation guide Liquid Level Switch Type LLS 4000_LLS 4000U Installation guide_Electronic part replacement Ukrainian Ukraine 26 Jul, 2020 1.7 MB .pdf
Safety guide LLS 4000/4000U Safety Manual English Multiple 13 May, 2020 1.3 MB .pdf
Safety guide LLS 4000/4000U Safety Manual Spanish, Castilian Multiple 22 Jun, 2020 1.4 MB .pdf
Safety guide LLS 4000/4000U Safety Manual Italian Multiple 22 Jun, 2020 1.4 MB .pdf
Safety guide LLS 4000/4000U Safety Manual Portuguese Multiple 22 Jun, 2020 1.4 MB .pdf
Safety guide LLS 4000/4000U Safety Manual German Multiple 22 Jun, 2020 1.4 MB .pdf
Safety guide LLS 4000/4000U Руководство по безопасности Russian Multiple 22 Jun, 2020 1.4 MB .pdf
Safety guide LLS 4000/4000U 安全指南 Chinese (CN) Multiple 22 Jun, 2020 1.9 MB .pdf

Software

LLS 4000 Liquid level switch

Connect and control your LLS 4000

Connect to and control any Danfoss LLS 4000 liquid level switch with the LLS 4000 app. Commissioning, setup, and monitoring can all be performed quickly and conveniently with just a few taps on your smartphone.

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