Float switch

Name: Float switch
Brand: WIKA

For the process industry, horizontal installation

Output

NAMUR · Reed contact

Protection

IP66/IP68

RoHSEACDNV GLABSCEATEXEU Declaration of ConformityLow Voltage DirectiveEMC DirectiveII 1GD Ex ia IICII 1/2G Ex ia IIC T6-T2 Ga/GbII 2D Ex ia IIIC T80 °C Db

Price

On request

Depends on configuration

Request a quote

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Description

In addition to the various applications for float switches for vertical installation (model FLS), the model HLS horizontal float switches likewise offer innumerable possibilities to monitor and/or switch levels in order to indicate minimum/ maximum levels.

The float is attached to a supported, swivelling lever and moves with the level of the medium being measured. By means of a permanent magnet, fixed to the end of the lever, when a preset switch point is reached, a reed contact (inert gas contact) within the contact tube is actuated.

for further approvals see page 2

Fig. top: Stainless steel version, model HLS-S Fig. bottom: Plastic version, model HLS-P

By using a permanent magnet and a reed contact the switching operation is non-contact, free from wear and needs no power supply. The functioning of the float switch is independent of foaming, conductivity, vapours, bubble formation and vibrations.

The signal processing is universal. Direct connection to PLCs, NAMUR connections, signal amplifiers or contact protection relays is possible.

The float switch is simple to mount and maintenance-free, so the costs of mounting, commissioning and operation are low.

Special features

Large range of application due to the simple, proven functional principle
For harsh operating conditions, long service life
Operating limits: Operating temperature: T = -120 ... +350 °C Operating pressure: P = Vacuum to 232 bar Limit density: ρ ≥ 500 kg/m 3
Operating temperature: T = -120 ... +350 °C
Operating pressure: P = Vacuum to 232 bar
Limit density: ρ ≥ 500 kg/m 3
Stainless steel and plastic versions
Explosion-protected versions

Identification

Model	HLS-S
Product family	HLS
Subcategory	float switch, horizontal installation

Process conditions

Process connection	DIN DN 50 ... DN 100, PN 6 ... PN 400ANSI 2" ... 4", class 150 ... 600Square flange DN 80 and DN 92DIN EN 1092-1 DN 50 ... DN 100, PN 6 ... PN 400
Process temperature	−120…+350 °C
Max process pressure	232 bar
Measurement technology	float

Electrical characteristics

Output signal	NAMUR · Reed contact · PLC · Reed contact (NO, NC, SPDT) · Reed contact, SPDT
Power supply	DC 20 ... 30 V or AC 230 V (depending on version)
Electrical connection	Connection housing, stainless steel 1.4571 or polyester

Materials

Wetted parts material

Stainless steel 1.4571 (316Ti), Titanium 3.7035, grade 2, Titanium 3.7165, grade 5, Polypropylene (PP), Hastelloy

Operating environment

Ambient temperature	−40…+80 °C
IP rating	IP66/IP68

Certifications and approvals

Certifications	RoHSEACDNV GLABSCEATEXEU Declaration of ConformityLow Voltage DirectiveEMC Directive
Explosion protection	Ex i Zone 1 mounting to zone 0 gas II 1/2G Ex ia IIC T6-T2 Ga/GbZone 21 dust II 2D Ex ia IIIC T80 °C DbII 1GD Ex ia IICII 1/2G Ex ia IIC T6-T2 Ga/GbII 2D Ex ia IIIC T80 °C Db

Additional details

Datasheet languages

Tables from datasheet

Model	Description	Materials
		Stainless steel 1.4571 (316Ti)	Polypropylene (PP)
HLS-SA HLS-SB	Standard version	x	-
HLS-P	Plastic version	-	x
HLS-SBI (HAG)	Intrinsically safe, Ex i	x	-

Logo	Description	Country
	EU declaration of conformity ■ Low voltage directive ■ RoHS directive ■ ATEX directive (option)	European Union
	EAC ■ EMCdirective ■ Low voltage directive ■ Hazardous areas	Eurasian Economic Community
	DNV GL ■ Ships, shipbuilding (e.g. offshore) ■ Hazardous areas	International
	ABS Ships, shipbuilding (e.g. offshore)	International

Logo	Description	Country
	EU declaration of conformity ■ Low voltage directive ■ RoHS directive	European Union
	EAC ■ EMCdirective ■ Low voltage directive	Eurasian Economic Community

	Model V44HI	Models T52HI, T52HI/Gr. 5	Model ZVSS43/100HI
Electrical connection	Connection housing, stainless steel 1.4571
Process connection	Mounting flange - DIN DN 50 ...DN 100, PN 6 ...PN 400 - DIN EN 1092-1 DN 50 ...DN 100, PN 6 ...PN 400 - ANSI 2" ... 4", class 150 ...600 - Square flangeDN80andDN92 Others on request
Insertion length L	190 ...990mm	190 ...990mm	240 ...990mm
Contact tube length K	100 ...900mm	100 ...900mm	100 ...850mm
Float
Material	Stainless steel 1.4571	ModelT52HI: Titanium 3.7035, grade 2 Model T52HI/Gr. 5: Titanium 3.7165, grade 5	Stainless steel 1.4571
Diameter	44mm	52mm	43mm
Length	52mm	52mm	100mm
Max. operating pressure	6 bar	Model T52HI: 100 bar Model T52HI/Gr. 5: 232 bar	20 bar
Min. density	600 kg/m³	500 kg/m³
Temperature range
Standard version	-50 ...+180 °C
High-temperature versionHT	-50 ...+250 °C
High-temperature versionHHT	-50 ...+350 °C
Low-temperature version	-120 ...+250 °C
Switching function	Alternatively normally open (NO), normally closed (NC) or change-over (SPDT) - on rising or falling level
Switching power	AC ≤ 230 V; 40 VA; 1 A DC ≤ 230 V; 20 W;0.5 A Please observe contact protection measures!
Attention: versions without protective conductor connection: Operation only at safety extra-low voltage, e.g. contact protection relay or external grounding
Mounting position	Horizontal
Ingress protection	IP66/IP68 per IEC/EN 60529

View all (8)

	Model PP44HI
Electrical connection	Connection housing, polyester
Process connection	Mounting flange - DIN DN 50 ...DN 100, PN 16, form A - ANSI 2" ... 4", class 150 FF
Insertion length L	176mm
Contact tube length K	111mm
Float
Material	Polypropylene
Diameter	44mm
Length	52mm
Max. operating pressure	4 bar
Min. density	750 kg/m³
Temperature range	-10 ...+80 °C
Switching function	Alternatively normally open (NO), normally closed (NC) or change-over (SPDT) - on rising level
Switching power	AC ≤ 230 V; 40 VA; 1 A DC ≤ 230 V; 20 W;0.5 A Please observe contact protection measures!
Switching power	Attention: versions without protective conductor connection: Operation only at safety extra-low voltage, e.g. contact protection relay or external grounding
Mounting position	Horizontal
Ingress protection	IP65 per IEC/EN 60529

	Model V44HI	Models T52HI, T52HI/Gr. 5	Model ZVSS43/100HI
Electrical connection	Connection housing, stainless steel 1.4571
Process connection	Mounting flange - DIN DN 50 ...DN 100, PN 6 ...PN 160 - DIN EN 1092-1 DN 50 ...DN 100, PN 6 ...PN 160 - ANSI 2" ... 4", class 150 ...900 - Square flangeDN80andDN92
Insertion length L	190 ...990mm	190 ...990mm	240 ...990mm
Contact tube length K	100 ...900mm	100 ...900mm	100 ...850mm
Float
Material	Stainless steel 1.4571	ModelT52HI: Titanium 3.7035, grade 2 Model T52HI/Gr. 5: Titanium 3.7165, grade 5	Stainless steel 1.4571
Diameter	44mm	52mm	43mm
Length	52mm	52mm	100mm
Max. operating pressure	6 bar	ModelT52HI: 100 bar Model T52HI/Gr. 5: 180 bar	20 bar
Min. density	600 kg/m³	500 kg/m³
Temperature range	-50 ...+180 °C depending on the temperature class
Temperature class	T2 T3	T4 T5 T6
Process temperature	≤ 180 °C ≤ 160	°C ≤ 108 °C ≤ 80 °C ≤ 65 °C
Ambient temperature	≤ 80 °C ≤ 80 °C	≤ 80 °C ≤ 80 °C ≤ 60 °C
Switching function	1 x change-over (SPDT)
Switching power	Only for connection to a certified intrinsically safe circuit with U max = 36 V, I max = 100mA
Mounting position	Horizontal
Ingress protection	IP66/IP68 per IEC/EN 60529

Contact protection relay	Contacts	Input	Power supply	Approval number	Order no.
KFD2-ER-1.6	1 x change-over AC 250 V, 2 A	2 x contacts	DC 20 ...30V	-	123806
KFD2-SR2-Ex2.W	2 x change-over AC 253 V, 2 A	2 x contacts	DC 20 ...30V	II 1GD Ex ia IIC PTB 02 ATEX 2073	124344
KFA6-ER-1.6	1 x change-over AC 250 V, 2 A	2 x contacts	AC 230V	-	124341
KFA6-SR2-Ex2.W	2 x change-over AC 253 V, 2 A	2 x contacts	AC 230V	II 1GD Ex ia IIC PTB 02 ATEX 2073	123794

RC element	Capacitance	Resistance	Voltage	Order no.
B3/110	0.33 µF	470Ω	AC 110V	126529
B3/230	0.33 µF	820Ω	AC 230V	126530