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Liquid Level Switch - Ammonia, Water & Alchohol

Technical data: HBSR

HBSR is a level switch for detecting liquids. It is calibrated in such a way that splash water and foaming cannot harm it. The sensor is made of stainless steel and can therefore also be used in corrosive environments. It withstands high pressures and low temperatures. The HBSR may only be used in steel tanks or steel pipes.

The switch must be supplied with 24 V DC power across an Ex barrier. This barrier must be an approved and certified galvanically isolated interface barrier located outside the hazardous area. The switch is a 2-wire version with an analog output with 4 mA (no liquid detection) and 20 mA (liquid detection). The digital input must be connected to the Ex barrier. The Ex barrier is not included.

The sensor can be adapted to the respective liquid type using our HB tool, which you can download from our website. See HB Tool. In addition, the HB Tool can also be used to switch between NC and closing contacts. Diagnoses can also be carried out with the tool. Programming must be carried out outside the danger zone.

According to ATEX/IECEx, the sensor range includes sensors for zones 0 and 1. The sensors can be used in device category 1G and temperature class T1... T6.

A 5 m long cable with an M12 connector of type IEC61076-2-101 is included in the scope of delivery.



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Product features

  • Temperature range: -40...+50°C
  • pressure: 150 bar
  • ATEX/IECEx: Ex ia IIC T1... T6 Ga (Ta = -40°C to +70°C)
  • Excellent liquid and gas compatibility
  • Affordable alternative to ultrasonic and radar sensor technologies
  • Suitable for reflective liquids
  • Functionality is not affected by steam
  • No contact corrosion
  • The split design facilitates installation and diagnostics.
  • Designed for industrial use
  • Clear LED display

Applications

Uses

Process plantsStorage
tanksIndifferent

 

Design:

Intrinsically safe sensors (IS) are designed to function with such a low current and voltage and are wired that there can be no ignition of flammable materials. By limiting the energy present in a certain hazardous area, the electrical appliances can also operate safely surrounded by harmful gas mixtures.

The measuring principle and the influence of the dielectric constant:

Capacitors are equipped with at least two conductors, one of which is electrically insulated. The dielectric constant plays an essential role in the operation of capacitors; the respective capacitance size is measured in pF.

The dielectric constant (dielectric number) is a unique value on a scale from 1 to 100. This value can be considered the DNA of the medium because it is unique and related to the respective molecular structure and polarization.

The dielectric constant always has a value of 1 or higher. The larger the dielectric constant, the higher the charging capacity (for example, a battery).

The dielectric constant changes with temperature and pressure, so the sensor is calibrated with an automatic temperature compensation and adapts to the measured medium.

Switch types:

Switch type Liquid type Dielectric constant

HBSC CO2(R744), butane (R600), isobutane (R600A), propane (R290) 1.5-2.0HBSO
PAO oil, mineral oil, POE oil, PAG oil 2.0-4.0HBSH
R507, R410a, R407c, R404a, R22, R32, R134a, R1234yf, R1234ze 4.0-10.0HBSR
NH3, water, R717, R718, alcohol 10.0-80.0

Specifications

Connection diagram

Diagram switch 

 

 

Drawing

HBSR SS ex 

Power supply
Voltage12-28 V DC two wire
Max. current consumption Max 20 mA
Plug connectionsM12, 5 pins - DIN 0627
Output
Signal output 4 / 20 mA (DO - Open/Closed)
Contact functionNO or NC ( Open = 4 mA / Closed = 20 mA)
Mechanical specifications
Material liquid partsAISI 304 / PTFE
Material electronic partsNylon 6 (PA)
Environmental conditions
Max pressure150 bar
Protection degreeIP65
VibrationsIEC 60068-2-6 (4g)
EMCEN 61000
HBP_PRODUCT_TAB_SPECS_STR_ATEX
IECEx classificationEx ia IIC T1…T6 Ga
Device category1G for Zone 0 & 1
Type of protectionia
Gas resp. gas groupIIC
Temperature classT1….T6
Ambient temperature-40...+50°C/+70°C
When used in Ex-area the installation has to be carried out according to standards in force for the country in question.
The Equipment must be installed via an approved and certified galvanically interface barrier placed outside the hazardous area.

Ordering code

OutputThread typeOrdering code
Temperature Range: -40...+50°C
NO1/2" NPTHBSR-U-NO-1-EX
NC1/2" NPTHBSR-U-NC-1-EX
NO3/4" NPTHBSR-U-NO-2-EX
NC3/4" NPTHBSR-U-NC-2-EX
NO3/4" BSPTHBSR-U-NO-4-EX
NC3/4" BSPTHBSR-U-NC-4-EX
NO1/2" BSPPHBSR-U-NO-5-EX
NC1/2" BSPPHBSR-U-NC-5-EX
NO3/4" BSPPHBSR-U-NO-6-EX
NC3/4" BSPPHBSR-U-NC-6-EX
NO1/2" NPTHBSR-U-NO-1-EX
NC1/2" NPTHBSR-U-NC-1-EX
NO3/4" NPTHBSR-U-NO-2-EX
NC3/4" NPTHBSR-U-NC-2-EX
NO3/4" BSPTHBSR-U-NO-4-EX
NC3/4" BSPTHBSR-U-NC-4-EX
NO1/2" BSPPHBSR-U-NO-5-EX
NC1/2" BSPPHBSR-U-NC-5-EX
NO3/4" BSPPHBSR-U-NO-6-EX
NC3/4" BSPPHBSR-U-NC-6-EX
Spare parts for HBSR
Electronic part for HBSR-U-NO HBSR-U-EL-NO-EX
Electronic part for HBSR-U-NC HBSR-U-EL-NC-EX
Temperature Range: 40...+70°C
Spare parts for HBSR
NO1/2" NPTHBSR-NO-1-HT-EX
NC1/2" NPTHBSR-NC-1-HT-EX
NO3/4" NPTHBSR-NO-2-HT-EX
NC3/4" NPTHBSR-NC-2-HT-EX
NO3/4" BSPTHBSR-NO-4-HT-EX
NC3/4" BSPTHBSR-NC-4-HT-EX
NO1/2" BSPPHBSR-NO-5-HT-EX
NC1/2" BSPPHBSR-NC-5-HT-EX
NO3/4" BSPPHBSR-NO-6-HT-EX
NC3/4" BSPPHBSR-NC-6-HT-EX
NO1/2" NPTHBSR-NO-1-HT-EX
NC1/2" NPTHBSR-NC-1-HT-EX
NO3/4" NPTHBSR-NO-2-HT-EX
NC3/4" NPTHBSR-NC-2-HT-EX
NO3/4" BSPTHBSR-NO-4-HT-EX
NC3/4" BSPTHBSR-NC-4-HT-EX
NO1/2" BSPPHBSR-NO-5-HT-EX
NC1/2" BSPPHBSR-NC-5-HT-EX
NO3/4" BSPPHBSR-NO-6-HT-EX
NC3/4" BSPPHBSR-NC-6-HT-EX
Spare parts for HBSR-EX
Electronic part for HBSR-NO HBSR-U-EL-NO-HT-EX
Electronic part for HBSR-NC HBSR-U-EL-NC-HT-EX

Downloads

Quick Start Guide – HBSR

Manual (UK) – HBSR

Supplement to the operating instructions for Ex/ATEX productsIECEx

/ATEX certificate

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