Danfoss Type LLS 4000 Liquid Level Switch Installation Guide

: July 15, 2024
: Danfoss

Table of Contents

Type LLS 4000 Liquid Level Switch
Product Information
Specifications:
- Product Usage Instructions
Installation:
Electrical Connection:
LED Indicators:
- FAQ
Q: What is the power supply specification for the product?
Q: Can the device be installed vertically or inclined?
Q: How can I detect faults in the LLS 4000/4000U?

Type LLS 4000 Liquid Level Switch

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Product Information

Specifications:

Product Name: Liquid Level Switch Type LLS 4000 / LLS
4000U
Device Class: Class A
Electrical Connector: M12 male
Power Supply: 24 V DC +/- 25%
Electrical Supply Relay: 30 V DC 200 mA
Recommended Installation: Horizontal

Product Usage Instructions

Installation:

1. Ensure the device is mounted on a metallic tank in an
industrial area.

2. Clean the weld connector for particles before
installation.

3. For LLS 4000, use a torque of 10 Nm/7.4 lb ft pre-tightening
+ 45 degrees clockwise rotation.

4. Make sure to leave the sensor assembled during both
electrical and mechanical installation.

Electrical Connection:

1. Use a straight M12 female connector cable.

2. Connect the cables according to the color code: Red to 1,
Green to 2, White to 3, Black to 4.

3. Fasten the wire approximately 100 mm from the LLS.

LED Indicators:

– Green light LED: Indicates level detection.

– Yellow light LED: Indicates a fault in the LLS 4000/4000U.

– Red light LED: Indicates SIL2 fixed configuration.

FAQ

Q: What is the power supply specification for the product?

A: The power supply required is 24 V DC with a tolerance of +/-
25% and a maximum current of 80 mA.

Q: Can the device be installed vertically or inclined?

A: Vertical or inclined installation is not recommended due to
the risk of gas pockets.

Q: How can I detect faults in the LLS 4000/4000U?

A: Faults can be detected through LED indicators. Connect the
device to a Bluetooth app for detailed fault information.

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148R9650

Installation guide/Quick start
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.

M12 male Electrical connector

Electronic part

Info for UK customers only:Danfoss Ltd., 22 Wycombe End, HP9 1NB, GB

: ” ” 04080, 80, / 168,

Fig. 1

Mechanical part

Heat sink (insulation allowed, if media temperature is less than ambient temperature)
Hexagon 32 mm Process connection G ¾” or ¾” NPT
Liquid sensing part

BSV BSV

SVA SVA
SFA +DSV

SVA

AKS 4100

SVA

EKE 347
GD

LLG LLS 4000
LLG
LLS 4000

SCA-X

FIA SNV

SNV

RT 260A

BSV

SVA

SNV SVA
SCA-X FIA

SNV

RT 260A

SNV

SVA

ICF 25-6-5A

REG

SVA

BSV

SNV

SVA

QDV 15

Fig. 2 © Danfoss | Climate solutions | 2024.01

AN317523977313en-000404 | 1

LLS 4000 Weld connector G ¾”
LLS 4000U Weld connector NPT ¾”
Note: Horizontal installation Recommended

Weld connector Clean for particles
Fig. 4

Note: Min. 30 mm uninterrupted hole size no reduction
Note: Vertical or inclined installation not recommended: Risk of Gas Pockets

Fig. 3
Always leave the complete sensor assembled, during both electrical and mechanical installation. Only disassembly electronic and mechanical part, if necessary at service.

LLS 4000

Alu-gasket

Fig. 5
Torque (LLS 4000 only): 10 Nm/7.4 lb ft pre-tightening + 45 degrees clockwise rotation

45°

LLS 4000U

G ¾” Teflon (PTFE) tape

Fig. 6 2 | AN317523977313en-000404

NPT ¾”

32 mm Clean joining surfaces

25 mm 1 in min.
45 mm 1.8 in max.

Cable with straight M12 female connector. Cables with angled connector is not recommended

1

4

2

3

Black Green – White + Red

Fig. 7

Relay: 30 V DC 200 mA

24 V DC +/- 25%

Securely hand-tighten clockwise until meeting 1 a hard stop
3

2

Note: Fasten the wire approx. 100 mm from the LLS
Fig. 8
© Danfoss | Climate solutions | 2024.01

Color code M12 cable

Red

1

Green

2

White

3

Black

4

Danfoss M12 cables
034G2201, straight M12 cable female x 2 meter 034G2200, straight M12 cable female x 8 meter Cables not included with LLS 4000/4000U

AN317523977313en-000404 | 3

Red light LED Yellow light LED

Fig. 9
High Level sensor High Level sensor

Level

Green light LED

Open at no Liquid
(Normally Open)*

Closed at no Liquid
(Normally Closed)*

Voltage connected
Green LED

Level detection

LLS 4000/4000U Fault

Yellow LED

Red LED

SIL2 fixed

configuration

Low Level sensor
2)
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

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

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General specifications

Electrical data

Supply Relay (Solid state)

24 V DC +/-25%, 80 mA Standard power supply of type: SELV (Safety Extra Low Voltage) with current limit of max. 8A.
Max 30 V DC, 200 mA. Same power supply as to supply can be used. Observe: In applications with request for SIL2, another separate SELV power supply may be needed.
Min. cycles: 1.000.000 Default delay between detection and relay switching: PV (Product Version) All SIL devices, regardless of PV: 1 second All non-SIL, PV02: 1 second All non-SIL, PV03 or greater: 2 seconds Product Version number can be found on product label. Actual delay highly influenced by media viscosity and shall be validated before commissioning.

Mechanical Data

Max. medium viscosity

5000 cP (Un-detection is delayed up to 20 seconds)

Max. working pressure

140 bar (2030 psi)

Ambient temperature range

-40 °C to +65 °C (-40 °F to +149 °F)

Medium temperature range Operating environment

-50 °C to +120 °C (-58 °F to +248 °F). Observe restrictions on saturation temperature for approved medias
Pollution degree 3, altitude 2000 max., outdoor use Relative humidity RH4 to RH99 % (IEC 60721-3-4: 1995 Class 4K4)

Connection type

G ¾ in. or NPT ¾ in.

Weight

350 g (0.77 lbs.)

Approved media

Media

Saturation temperature range

R717 (Ammonia) -50 °C +105 °C (-58 °F +221 °F)

R22 (HCFC)

-50 °C +86 °C (-58 °F +187 °F)

R507A (HCFC) -50 °C +60 °C (-58 °F +140 °F)

R134a (HFC)

-50 °C +91 °C (-58 °F +196 °F)

Ammonia and listed H(C)FCs and HFOs.

R404A (HFC)

-50 °C +63 °C (-58 °F +145 °F)

Note:

R407A (HFC)

For other medias and mixed medias, please contact Danfoss. R410A (HFC)

-50 °C +72 °C (-58 °F +162 °F) -50 °C +61 °C (-58 °F +142 °F)

R513A (HFC)

-50 °C +83 °C (-58 °F +181 °F)

R1234ze(E) (HFO)* -50 °C +85 °C (-58 °F +185 °F)

PAO (Oil)**

Max 5000 cP and +120 °C (Max 5000 cP and +248 °F)

POE (Oil)**

Max 5000 cP and +120 °C (Max 5000 cP and +248 °F)

Mineral (Oil)** Max 5000 cP and +120 °C (Max 5000 cP and +248 °F)

Approvals

CE: PED, EMC, RED, RoHS, LVD CRN SIL2 FCC IC UA CMIIT ANATEL (1) NBTC (2)

R1234ze(E) with POE oils (miscible) ** When detecting oils in Ammonia, H(C)FC and HFO systems, the refrigerant gas temperature above the oil must be lower than 80 °C
(1) Este equipamento não tem direito à proteção contra interferência prejudicial e não pode causar interferência em sistemas devidamente autorizados. Para maiores informações, consulte o site da ANATEL www.anatel.gov.br.
(2) . This telecommunication equipment conforms to the technical standards or requirements of NBTC.

AN317523977313en-000404 | 5

M12x1

2.8

71,3

Fig. 10

142,4

1 5

2 0

2

36
H32 34
G3/4
19,5 LLS 4000 (mm)

5.6

0.6 0.78

1.4
H32 3/4 NPT
0.77 LLS 4000U (in)

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LLS Bluetooth app download
1

2

Search LDLaSn4f0o0s0s

Configuration
11

3
dow nl oad

LLS 4000 AB C DEFGHIJ K L

Observe!

4

Always download or update to latest App version.

Devices with Firmware PV01 (see product label) must be

Firmware updated to latest firmware before configuration.

Please contact Danfoss.

2

3

4

5

6

Pin code: 0000 7©|DAaNn3fo17ss52| 3C9li7m7a3t1e3esonl-u0t0io0n4s0|42024.01

} Configurable
AN317523977313en-000404 | 7

Configuration continued

7

8

Password: 12131400*

In Service menu a unique password for Service menu can be entered. Go to menu upper right -> Go login -> Go to settings -> Go to Service Password -> Enter new Service Password

Note: For commissioning, service and proof testing see LLS 4000/4000U Safety Manual

Read and apply safety instructions contained in product documentation.

Direct current.
General warnings/precautions
– Every use that is not described in this guide is considered incorrect and is not authorized by the manufacturer. – The LLS device should only be used with approved media listed under General specifications. Use with other medias must be
validated by Danfoss before installation. – Verify that the installation and operating conditions of the device respects those specified in this guide, especially concerning
the supply voltage and environmental conditions. – All service and maintenance operations must be performed by qualified personnel. – Installation must comply with local standards and legislation. – Before carrying out any maintenance operations on the device, disconnect the device from the main power supply. – Before unscrewing the LLS device from the pipe or tank ensure that pipe or tank is empty and not under pressure. – Liability for injury or damage caused by incorrect use of the device lies solely with the user. – Depending on the application, the metallic part of the instrument may be hot or cold. – 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.
For further documents (Data sheet, SIL2 safety manual etc.) scan this QR code:

Danfoss A/S, 6430 Nordborg, Denmark

www.danfoss.com

22

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