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E.3 Electronic pressure switches hex 27 and 30 A/F

E.3 Electronic pressure switches hex 27 and 30 A/F
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E.3 Electronic pressure switches hex 27 and 30 A/F

Product catalog summary
Overview: This document outlines the technical specifications and operational guidelines for electronic pressure switches, emphasizing their design, functionality, and applications. Key features include high overpressure protection, adjustable switching points, and the ability to handle high switching currents.
Specifications: The pressure switches utilize ceramic sensors with thick film technology, providing overpressure protection up to 500 bar. They operate within a supply voltage range of 15-36 VDC and support output currents up to 1.4 A. The adjustment range spans from 0-10 bar to 0-250 bar, with a mechanical life expectancy of 5 million cycles.
Technical Details: These switches offer high accuracy of ±0.5% FS at room temperature and a hysteresis range of 2-95% FS. They function within a compensated temperature range of 0°C to +70°C, with specific ambient and media temperature ranges for different seal materials (NBR, EPDM, FKM).
Construction and Materials: The housing is constructed from zinc-plated steel, featuring a ceramic measuring cell and various seal materials. The switches comply with IP65 and IP67 protection classes and meet EMC standards.
Functionality: The document details the operation of electronic pressure switches, highlighting the use of a Wheatstone bridge circuit and microcontroller for digital signal processing. It also discusses the advantages of SoS technology and oil-filled stainless steel measuring cells for improved stability and accuracy.
Operational Features: The switches provide programmable hysteresis and switching delays, with options for PNP and NPN output configurations. They are designed to manage high switching currents and offer protection against voltage peaks and short circuits.
Applications and Compliance: Suitable for various industrial applications, the switches comply with RoHS II and EMC directives. They are not applicable under the Machinery Directive but are designed for Group 2 fluids under the Pressure Equipment Directive.
Specifications and Standards: The document specifies standards for radio disturbance and immunity (EN 55016-2-1, EN 55016-2-3), radiated electromagnetic field immunity (EN 61000-4-3), conducted disturbances immunity (EN 61000-4-6), electrical fast transient/burst immunity (EN 61000-4-4), surge immunity (EN 61000-4-5), and electrostatic discharge (ESD) immunity (EN 61000-4-2).
Technical Explanations: Insulation strength testing should consider surge protection activation without defects. Medium compatibility varies with materials like titanium and stainless steel, with specific recommendations for oxygen and hydrogen applications. Pressure peak dampening can be achieved with pressure snubbers, with specific bore diameter recommendations.
Product Information: Technical information is based on testing and empirical values, with application suitability being the user's responsibility. Mounting position does not affect pressure measurement accuracy, but specific orientations may be required by application conditions. IP protection classes define dust and water protection levels, with specific codes indicating the degree of protection. Thread types and tightening torques are specified for different materials, considering gaseous applications and vacuum conditions.
General Technical Explanations: Overpressure protection values are based on static pressure, with recommendations for dynamic pressure considerations. RoHS compliance and CE marking are discussed, emphasizing adherence to European directives and standards for product safety and compliance.
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Catalog excerpts

E.3 Electronic pressure switches hex 27 and 30 A/F-1

Electronic Pressure Switches sehctiwS erusserP cinortcelE 96

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E.3 Electronic pressure switches hex 27 and 30 A/F-2

Electronic pressure switches hex 27 and 30 A/F, adjustable by user • Ceramic sensor in thick film technology • High overpressure protection to 500 bar • Easy adjustment of switching point from the outside using set screw • Hysteresis available within broad range (2 % - 95 %, set at factory) • Very high switching currents (to 1.4 A)

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E.3 Electronic pressure switches hex 27 and 30 A/F-3

11 Static pressure, dynamic pressure 30 to 50 % lower. Values refer to the hydraulic or pneumatic part of the electronic pressure switch. 2) Within the compensated temperature range.

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E.3 Electronic pressure switches hex 27 and 30 A/F-4

E.3 hex 27 / 30 A/F adjustable by user 0520Electrical connectors and threads DIN EN 175301 - 803 - A IP65 Cable output PG9 (outside diameter of cable 6 to 9 mm) Order number: 013 G 1/4 -X female thread

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E.3 Electronic pressure switches hex 27 and 30 A/F-5

Electronic pressure switch Your order number: 0520 47X XX X XXX Also available factory adjusted. If you require factory adjustment, please state switching point and hysteresis when ordering. 0 Static pressure, dynamic pressure 30 to 50% lower. Value refers to the hydraulic or pneumatic part of the electronic pressure switch.

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E.3 Electronic pressure switches hex 27 and 30 A/F-6

Technical explanations for electronic pressure switches What is an electronic pressure switch? An electronic pressure switch converts the medium pressure which is present at the measuring cell into a digital, electrical switch signal (ON / OFF). An electronic pressure switch is more complex than a mechanical pressure switch, and thus generally more expensive. As an electronic pressure switch has no moving parts (relative to each other), it usually has a much prolonged service life and provides a higher level of precision (depending on application). The hysteresis can be set over a wide range...

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E.3 Electronic pressure switches hex 27 and 30 A/F-7

Adjustment range of switching point The pressure range within which the switching point of an electronic pressure switch can be set is called adjustment range. The switching point corresponds to the pressure value at which the electric circuit of the output is opened or closed. Window function In the window function, the switch signal is programmed such that it remains ON or OFF between two values. This means a defined pressure range can be monitored. This function is only possible on the 053X series. pressure profile Hysteresis Rising/falling switching point The difference between the rising (upper)...

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E.3 Electronic pressure switches hex 27 and 30 A/F-8

Technical explanations for electronic pressure switches PNP output / high-side / plus-switching PNP output (plus-switching) is the most popular variant in Europe. Here the load is connected to the output of the switch and ground (GND as reference potential). NPN output / low-side / minus-switching For an NPN output (minus-switching), the load is connected to the switching output and to the positive line of the supply voltage (Uv+ as reference potential). Temperature errors and ranges The temperature (both of the medium and environment) generally has a signicant influence on the accuracy of an...

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E.3 Electronic pressure switches hex 27 and 30 A/F-9

Sampling rate The sampling rate (or sampling frequency) defines the number of samples per time unit (typically in seconds or milliseconds) taken from an analogue signal and converted to a digital signal. The sampling rate is an indicator of how fast the output signal of an electronic pressure switch responds to the pressure change at the input. CE mark Electronic pressure switches from SUCO fall under the 2014/30/EU EMC Directive. EC declarations of conformity have been issued for the electronic pressure switches are available on request or can be downloaded from our website. The relevant devices...

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E.3 Electronic pressure switches hex 27 and 30 A/F-10

Technical explanations for electronic pressure switches Conversion chart for pressure units Insulation strength According to the latest specifications for immunity to surges and lightning protection, the following must be taken into account when testing insulation strength: With insulation test devices having an inner resistance exceeding 42 Ohm, the insulation strength of electronic pressure switches can be tested up to 500 VDC. All contacts must be tested short-circuited against the housing. For a specific threshold value of test voltage, the protective circuit for surge protection is activated...

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E.3 Electronic pressure switches hex 27 and 30 A/F-11

General technical explanations User information Our pressure monitoring products may only be installed and started up by authorised specialists. The safety regulations of country-specific authorities must be observed, especially when working with mains voltages and oxygen, and in potentially explosive areas. Product information The technical information in this catalogue is based upon fundamental testing during product development and empirical values. The information cannot be used for all application scenarios. Testing of the suitability of our products for a specific application (such as the checking...

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E.3 Electronic pressure switches hex 27 and 30 A/F-12

RoHSII compliant Values 30% lower than in the table above must be used for brass housings. Gaseous applications In particular using additional sealant to attain the required leak tightness may be necessary for gas applications. Vacuum The values given in the technical details for the vacuum range are specified in millibars (mbar) below atmospheric pressure. Pressure change rate (~rise / ~fall) The pressure change rate denotes the pressure over time for the rising/falling pressure. The pressure change rate is specified in bar/s or bar/ms. The maximum pressure change rate for SUCO mechanical pressure...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.