- 4 digit super bright LED display
- Top part rotatable for easy mounting
- Switchable digital display for overhead mounting
- Adjustable turndown without loss of accuracy 1:5
- Dry capacitive pure ceramic measuring cell
- High overload capability
- Front flush process connection
- Smallest measuring range: 0…40 mbar
- Largest measuring range: 0…40 bar
- Negative pressure measuring range: up to -1 bar
- Adjustable on site
- Accuracy ≤ 0,3%, also for turndown up to 1:5
- 2 Switching outputs DC PNP, max. 100mA
- Analog output: 4…20 mA, 3-wires
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- Simple on-site operation via DIP Switch
- Dry ceramic sensor
- Smallest measuring range: 0…250 mbar
- Largest measuring range: 0…250 bar
- Negative pressure measuring range: up to -1 bar
- Accuracy ≤ 0,5 %
- Compact design
- Analog output: 4…20 mA, 3-Wires
- Contact output: DC PNP, max. 200 mA
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- Dry front flush ceramic sensor
- Simple on-site operation via DIP Switch
- Dry ceramic sensor
- Smallest measuring range: 0…500 mbar
- Largest measuring range: 0…50 bar
- Negative pressure measuring range: up to -1 bar
- Accuracy ≤ 0,5 %
- Compact design
- Analog output: 4…20 mA, 3-wires
- Contact output: DC PNP, max. 200 mA
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- Easily readable, robust digital display
- Intuitive and fast setup
- Easy and flexible mounting configurations
- Flexibly configurable and scalable output signals
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- Good/bad indication through parameterisable digital display (red/green)
- Compact size enables easy installation in narrow spaces
- Optimised design makes OEM machine integration easier
- Designed for rough demands of up to 50 g shock and -40 ... +125 °C [-40 ... +257 °F]
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- Adjustable switch hysteresis
- Setting ranges: 0.2 … 2 bar [3 ... 30 psi] to 30 ... 320 bar [450 ... 4,600 psi] and -0.85 ... -0.15 bar [-25 inHg ... -5 inHg]
- Non-repeatability of the switch point: ≤ 2 %
- Switching functions: Normally closed, normally open or change-over contact
- Media: Compressed air, neutral and self-lubricating fluids and neutral gases
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- nominal pressure: 0 ... 100 mbar up to 0 ... 600 bar
- accuracy: 0.25 % / 0.35 % FSO
- indication of measured values on a 4-digit LED display
- rotatable and configurable display module
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- nominal pressure: 0 ... 100 mbar up to 0 ... 40 bar
- accuracy: 0.35 % (opt. 0.25 %) FSO
- rotatable and configurable display module
- indication of measured values on a 4-digit LED display
- 1, 2 or 4 independent PNP contacts, freely configurable
- configurable contacts (switch on / switch off points, hysteresis / window mode, switch on / switch off delay)
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- nominal pressure: 0 ... 400 mbar up to 0 ... 600 bar
- accuracy: 0.5 % FSO
- indication of measured values on a 4-digit LED display
- rotatable and configurable display module
- 1, 2 or 4 independent PNP contacts, freely configurable
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- nominal pressure: 0 ... 60 bar up to 0 ... 400 bar
- accuracy: 0.5 % FSO
- 1, 2 or 4 independent PNP contacts, freely configurable
- rotatable and configurable display module
- indication of measured values on a 4-digit LED display
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- nominal pressure: 0 ... 6 bar up to 0 ... 600 bar
- accuracy: 0.5 % FSO
- indication of measured values on a 4-digit LED display
- rotatable and configurable display module
- 1, 2 or 4 independent PNP contacts, freely configurable
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- nominal pressure: 0 ... 10 mbar up to 0 ... 1000 mbar
- accuracy: 0.35 % FSO
- indication of measured values on a 4-digit LED display
- rotatable and configurable display module
- 1, 2 or 4 independent PNP contacts, freely configurable
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- nominal pressure: 0 ... 600 bar up to 0 ... 2200 bar
- accuracy: 0,35 % FSO
- indication of measured values on a 4-digit LED display
- rotatable and configurable display module
- 1, 2 or 4 independent PNP contacts, freely configurable
- pressure sensor welded
- extremly robust and excellent longterm stability
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- nominal pressure: 0 ... 6 bar up to 0 ... 600 bar
- accuracy: 0.5 % FSO
- 1 analog output and up to 2 contacts
- display and housing rotatable
- perfect for oxygen applications
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- nominal pressure: 0 ... 2 bar up to 0 ... 400 bar
- accuracy: 1.5 % FSO
- display and housing rotatable
- up to 2 contacts
- configurable via display
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- nominal pressure: 0 ... 6 mbar up to 0 ... 1000 mbar
- accuracy: 0,35 % FSO
- aluminium housing
- rotatable and configurable display module
- 4-digit LED display
- suited for non-aggressive gases and compressed air
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- nominal pressure: 0 ... 100 mbar up to 0 ... 600 bar
- accuracy: 0.5% / 0.35 % (opt. 0.25 %) FSO
- signal output switchable: IO-Link | PNP | NPN | 0…10V | 4…20mA
- indication of measured values on a 4-digit LED display
- rotatable and configurable display
- parametrization by IO-Link or set menu system (VDMA-conform)
- additional information accessible via IO-Link
- Smart sensor profile
- IO-Link according to specification V 1.1
- Data transfer 38.4 kBaud
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- nominal pressure: from 0 ... 100 mbar up to 0 ... 40 bar
- accuracy: 0.5% / 0.35 % (opt. 0.25 %) FSO
- IO-Link according to specification V 1.1
- Smart sensor profile
- Data transfer 38.4 kBaud
- signal output switchable: PNP / NPN / 4 … 20 mA / 0 … 10 V
- indication of measured values on a 4-digit LED display
- rotatable and configurable display
- parametrization by IO-Link or set menu system (VDMA-conform)
- additional information via IO-Link
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- nominal pressure: 0 ... 0,4 bar bis 0 ... 600 bar relativ, 0 ... 0,6 bar bis 0 ... 600 bar absolut
- accuracy: 0,5 % FSO
- rotatable and configurable display
- parametrization by IO-Link or set menu system (VDMA-conform)
- signal output switchable:
- Smart sensor profile
- IO-Link according to specification V 1.1
- indication of measured values on a 4-digit LED display
- additional information via IO-Link
- Data transfer 38.4 kBaud
| Datasheet |
| User Manual |
- nominal pressure: 0 ... 100 mbar up to 0 ... 600 bar
- accuracy: 0.25 % / 0.35 % FSO
- indication of measured values on a 4-digit LED display
- rotatable and configurable display module
- 1 or 2 independent PNP contacts, freely configurable
| Datasheet |
| User Manual |
| User Manual |
- nominal pressure: 0 ... 100 mbar up to 0 ... 40 bar
- accuracy: 0.35 % (opt. 0.25 %) FSO
- 1 or 2 independent PNP contacts, freely configurable
- indication of measured values on a 4-digit LED display
- rotatable and configurable display module
- hygienic process connections with flush stainless steel diaphragm
- configurable contacts (switch on / switch off points, hysteresis / window mode, switch on / switch off delay)
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- nominal pressure: 0 ... 400 mbar up to 0 ... 600 bar
- accuracy: 0.5 % FSO
- rotatable and configurable display module
- indication of measured values on a 4-digit LED display
- 1 or 2 independent PNP contacts, freely configurable
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The VDMA standard for fluid sensors (24574-1, part 1 - pressure switches) has the aim of simplifying the use of pressure switches by standardising menu navigation and display.
- Easily-readable, robust display
- Intuitive and fast setup
- Easy and flexible mounting configurations
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- Open-collector
- Configurable as min./max./window monitor
- Adjustable drop-in/drop-out delay
- Hysteresis defined by set-point and reset-point
- Backlit LCD graphical display (Human-Machine-Interface models only) can be swiveled for better readability; display can be rotated in 90° steps by software
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- Open-collector
- Configurable as min./max./window monitor
- LCD graphical display (Human-Machine-Interface models, only) can be swiveled for better readability; display can be rotated in 90° steps by software for better readability; HMI can be freely swiveled 310°
- Self-monitoring electronics
- Adjustable drop-in/drop-out delay
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- simple programming independent of a PC
- quick connection between supply and pressure switch
- up to five configurations storable and copyable
- all parameters of the pressure switch can be configured (switching mode, switch-on and switch-off point, ...)
- robust plastic housing
- 4-digit LED display
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- nominal pressure: 0 ... 16 bar up to 0 ... 600 bar
- accuracy: 0,5 % FSO
- configurable via PC or programming device P6
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- nominal pressure: 0 ... 2 bar up to 0 ... 400 bar
- accuracy: 1 % FSO
- 1 or 2 contacts
- configurable via PC or programming device P6
- diaphragm ceramic (96 %)
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- nominal pressure: 0 ... 1 bar up to 0 ... 10 bar, -1 bar ... 0 bar
- accuracy: 1 % FSO
- 1 or 2 contacts
- silicon sensor, RTV
- configurable via PC or programming device P6
- compact design
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- nominal pressure: 0 ... 1 bar up to 0 ... 10 bar, -1 bar ... 0 bar
- IO-Link according to specification V 1.1
- accuracy: 0.5 % FSO
- silicon sensor, RTV
- compact design
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The HySense® MultiEPC is an electronic pressure switch with an extraordinary level of functionality. It is available in standard and DESINA versions with one or two independently programmable limit switches. And to top it all off, the heavy-duty housing, which can rotate axially, features an integrated display.
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- Qualified for hydraulic systems
- Designed for mobile use
- Short response time
- Many pressure ranges
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- Setting ranges: 0.2 … 2 bar [3 ... 30 psi] to 30 ... 320 bar [450 ... 4,600 psi] and -0.85 ... -0.15 bar [-25 inHg ... -5 inHg]
- Non-repeatability of the switch point: ≤ 2 % of span
- Switching functions: Normally closed, normally open or change-over contact
- Media: Compressed air, neutral and self-lubricating fluids and neutral gases
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A Belleville spring provides for the simultaneous triggering of the DPDT contact and, through the snap-action behaviour, increases the stability and vibration resistance.
- Compact and slimline design
- Robust switch enclosure from stainless steel 316, IP66, NEMA 4X
- Wide selection of setting ranges available, 1 … 2.5 bar to 200 … 1,000 bar
- Set point repeatability of ≤ 1 % for reliable switching
- High switching power and large selection of contact variants and electrical connections
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The successful design and the excellent functionality of the WIKA switch family were already confirmed by winning the "iF product design award 2009"
- Easily-readable, robust display
- Intuitive and fast setup
- Easy and flexible mounting configurations
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Electronic Pressure Switches – Precise Setpoints, Smart Functions
Electronic pressure switches combine a precise sensing element (e.g., piezoresistive/thin-film) with digital signal processing. They deliver accurate, repeatable switch points, freely configurable hysteresis/logic (NO/NC, window), clear LED/display indication and—depending on the model—analog outputs (4–20 mA, 0–10 V), IO-Link or RS-485/Modbus for parameterization and diagnostics.
Typical applications include hydraulics/pneumatics, pump/compressor protection, filter and leak monitoring, machine & building services, and process automation. Housings and process connections range from 316L stainless steel and G/NPT threads to hygienic versions with diaphragm seals. IP ratings up to IP67/IP69K, optional ATEX/IECEx.
FAQ on Electronic Pressure Switches
Answers on selection, parameterization, outputs, accuracy, installation, protection classes, and integration with PLC/Edge/Cloud.
What are the advantages over mechanical pressure switches?
Higher accuracy and repeatability, flexible configuration (setpoint, hysteresis, window), status indication, and often an additional analog/communication output for monitoring.
Which outputs are available?
| Type | Description | Typical use |
|---|---|---|
| Switching | PNP/NPN, NO/NC, window | Direct control/signaling |
| Analog | 4–20 mA, 0–10 V | Trends/control, PLC AI |
| IO-Link | Bidirectional, param/diagnostics | Industry 4.0, condition data |
| RS-485/Modbus | Multi-drop bus, registers | Long runs, many devices |
How is parameterization done?
Depending on model via keys/display, IO-Link (tool/master), or Modbus registers. Typical parameters: setpoint, reset point, damping, units, and switching logic.
What accuracy can I expect?
Typically ±0.5…1.0% of span; high-end devices down to ±0.25%. Consider the total error band over temperature and long-term stability.
How should I choose range and hysteresis?
Select a range of 1.3–2.0 × the working pressure. Set hysteresis to avoid chatter and extend lifetime; enable damping for pulsating signals.
Which process connections are common?
| Connection | Standard | Note |
|---|---|---|
| G 1/4, G 1/2 | ISO 228 | Industry standard |
| ¼″ NPT, ½″ NPT | ASME | US / oil & gas |
| Hygienic | Tri-Clamp, Varivent® | Use with diaphragm seal (CIP/SIP) |
Which IP ratings are available?
Depending on the series IP65–IP69K for wet/washdown environments. ATEX/IECEx variants are available for hazardous areas.
How do I integrate with PLC/IIoT?
Wire switching outputs to digital inputs and analog outputs to AI cards. For IO-Link, use a master; for Modbus, terminate RS-485 properly (120 Ω) and forward via an edge gateway to MQTT/HTTPS.
What should I consider during installation?
- Low-vibration mounting; avoid bending/tensile loads on the process port.
- For steam/hot media: use a siphon/cooling element.
- For pulsation: add a snubber/enable damping.
Which material/seal combinations are suitable?
316L stainless steel for many media; for aggressive media consider Hastelloy® and suitable seals (FKM/EPDM/PTFE). For hygienic use: smooth surfaces and diaphragm seals.
What about power supply?
Typically 18–30 V DC. Observe output load limits, EMC-compliant wiring, and proper grounding.
How often should I calibrate/maintain?
Recommendation: annually; for QA/safety loops semi-annually/quarterly. Store test records (as-found/as-left) in a traceable manner.
Can electronic pressure switches detect leaks?
Yes—via rate-of-change rules (Δp/dt) or window functions; IO-Link/Modbus can report events and support trend analysis.
Do models include displays/status LEDs?
Many offer 7-segment/OLED displays, unit switching, and status LEDs for switch states/faults.
How do I set units and damping?
On-device or via IO-Link/Modbus. Keep units consistent (bar/psi/kPa); adapt damping to process noise.
Do you support selection and commissioning?
Yes—from range/hysteresis, output/communication, materials/connection, and parameterization to documentation and optional IIoT integration.