ES-2X: Product family of electronic safety switching devices

The products in the ES family are electronic safety switching devices for pressure monitoring with comprehensive self-diagnostic functions and a fail-safe design. The devices meet the highest safety standards, can be flexibly expanded, and wirelessly configured using a smartphone.
The ES series offers excellent safety features and useful expert functions. Save resources during planning, commissioning, daily operation, and maintenance of your system thanks to intelligent convenience functions.

Security features at a glance

Druckwächter Schaltverhalten

Pressure switch (PSH/DWK)

Setting a switching point and a reset point (hysteresis) The device is automatically reset or unlocked.

Druckbegrenzer Schaltverhalten

Pressure limiter (PZH/DBK)

Setting a switching point. Resetting and unlocking is done manually on the device (without tools).

Sicherheitsdruckbegrenzer Schaltverhalten

Safety pressure limiter (PZHH/SDBK)

Setting a switching point
Resetting and unlocking is done manually with a tool directly on the device.

ES_Serie Fluid.iO
  • DGRL 2014/68/EU
  • DIN EN 378
  • SIL2

ES series: electronic pressure switches / pressure limiters

Type-tested & TÜV-certified electronic safety switching device


By using our safety switching device, you can avoid unwanted overpressure or underpressure in your process flow and, in the event of a fault, quickly and safely shut down the source of danger. This ensures a safe condition for people, machines, and the environment at all times.

Overview of expert and comfort functions

Self-diagnosis & fail-safe design
The ES series is a self-monitoring measuring system that guarantees rapid shutdown of the source of danger in any situation
Integrated data logger
Monitoring of pressure conditions over time & digital storage of measurement data in the integrated device memory
Leak test with test report
Measure the pressure drop in the pressure circuit over adjustable test times and intervals. The ES device creates a digital test certificate
Measuring channel and switching channel extension
The ES series enables the simultaneous monitoring of up to 4 pressure circuits and the safe shutdown of several connected pressure generators
  • Bluetooth
  • Android App

Easy integration & fastest commissioning

By using the ES series, you reduce time-consuming, labor-intensive commissioning and device testing for safety-relevant components. Configuration and functional testing of sensors and switching relays can be performed quickly and precisely via an Android app. This eliminates the need for a gradual increase in system pressure.


Alarm, test, and setting logs can then be wirelessly transferred in PDF format from the device to your smartphone.

System diagnostics, leak testing, and measurement data acquisition can be performed in a single step using the ES series' service functions.

ES-Serie mit Android App bedienen

ES Series: Devices, Extensions & Software

Refrigerants (ammonia, propane, CO2) Hyrogen Steam Boiler Water vapor Hot water

ES-20

Pressure limiter | Pressure monitor | Safety pressure limiter | Pressure regulatorelectronic safety switching device

Relativdruck Differenzdruck

Simple and precise setting of switching thresholds, reset values and delay times

suitable for : gas

Features : DGRL 2014/68/EU SIL2 Wasserstoff

ES-21

Electronic safety switching device with 1 safety function

Relativdruck Differenzdruck

Simple and precise setting of switching thresholds, reset values and delay times

suitable for : gas

Features : DGRL 2014/68/EU SIL2 Wasserstoff

ES-22

Limitador de presión de seguridad electrónico con 2 funciones de seguridad

Relativdruck Differenzdruck

Simple and precise setting of switching thresholds, reset values and delay times

suitable for : gas

Features : DGRL 2014/68/EU SIL2 Wasserstoff

ESE

Switching channel extension for ES series

Relativdruck Differenzdruck

Simple and precise setting of switching thresholds, reset values and delay times

suitable for : gas

Features : DGRL 2014/68/EU SIL2 Wasserstoff

Smart Pressostat App

App for control of ES-2X devices over Bluetooth

Absolutdruck Relativdruck Differenzdruck

simple operation of our electronic pressure limiters, pressure monitors and safety pressure limiters

suitable for : fluids gas

Features : DGRL 2014/68/EU Android

ZT-S

Functionally safe pressure transmitter for ES series

Relativdruck

Pressure ranges from -1 to 4,000 bar

suitable for : gas fluids

Features : SIL2

ESE

Switching channel extension for ES series

Relativdruck Differenzdruck

Simple and precise setting of switching thresholds, reset values and delay times

suitable for : gas

Features : DGRL 2014/68/EU SIL2 Wasserstoff

The functions of the ES series save effort and time in many applications,

Refrigeration systems Heat Pump Steam boiler combustion systems Filter systems compressor Compressor

Verdichter Kompressoren Kälteanlagen

Fluid.iO ES-Series

pressure regulator

Leak test of your system


  • facilitates commissioning and regular testing of the system
  • Fulfillment of documentation requirements by retrieving the test report with time stamp directly from the device

Verdichter Kompressoren Kälteanlagen

Fluid.iO ES-Series

pressure limiter

integrated pressure transmiter


  • Relative or differential pressure measurement
  • 4...20mA measured value or alarm output
  • SIL-2

Verdichter Kompressoren Kälteanlagen

Fluid.iO ES-Series

pressure switch

Switching device for pressure limitation


  • Type-tested according to PED 2014/68/EU
  • according to DIN EN 378
  • Electronically configurable pressure switch (DWK), pressure limiter (DBK) & safety pressure limiter (SDBK) available as a combination in one device
  • Limitation to rising or falling pressure

Verdichter Kompressoren Kälteanlagen

Fluid.iO ES-Series

Safety pressure limiter

Pressure display & data logging


  • Read pressure value, switching thresholds and other parameters directly on the display
  • Display of live measurement data on the smartphone
  • Pressure and temperature measurement at the process connection
  • Storage of the measurement series in the device and transmission to a connected smartphone
  • pressure limiter
  • Pressure switch
  • Safety pressure limiter (SDBK)

Flexible expansion of the measuring and switching channels

The devices of the ES series are designed for increasing (maximum pressure limiter) or decreasing pressure (minimum pressure limiter) depending on the application.


The ES series can be expanded into a central measurement and control system using measuring channel and switching channel extensions. For this purpose, specially developed SIL 2-capable pressure transmitters (ZT-S) are connected to the ES device via a secure communication interface. This enables simultaneous monitoring of up to four pressure circuits.

  • Comissioning
  • Parameterization

Advanced parameterization for easy monitoring of system pressure

The operating concept is based on the VDMA menu structure, which further simplifies device operation.


Use the two control buttons to quickly navigate through the extensive configuration menu to precisely adjust switching points, switching delays, hysteresis, and many other parameters. Switching points can be set to an accuracy of 0.1 bar across the entire nominal pressure range. The device saves your settings digitally. Alternatively, you can conveniently configure the ES-2x device using a smartphone app via Bluetooth.

Pressure switches & pressure limiters: Frequently asked questions & answers

ES-Serie from Fluid.iO

The devices of the ES-2x series are electronic safety switching devices for pressure monitoring with comprehensive self-diagnostic functions and fail-safe design. The devices are used as pressure regulators, for minimum or maximum pressure limitation on compressors in refrigeration and air conditioning systems, on heat pumps, steam boiler systems and on hydraulic systems. With the exception of the integrated switching relays, there are no mechanically moving components, resulting in high vibration resistance and a long service life. The switching limits can be conveniently set and precisely monitored. Comprehensive self-diagnostic and logging functions ensure safe monitoring and fast shutdown of the source of danger as well as high traceability of events that have occurred.

 

Merkmal ES-20 ES-21 ES-22
Zertifizierungen  
SIL-2
DGRL 2014/68/EU
Sicherheitsfunktionen  
Anzahl wählbar 1 2
Druckregler
Druckwächter
Druckbegrenzer
Sicherheitsdruckbegrenzer
Messprinzip  
Relativ- bzw. Absolutdruck
Differenzdruck
Komfortfunktionen  
App-Kommunikation
4..20mA Signalausgang
Messkanalerweiterung
Schaltkanalerweiterung
Alarmausgang
Fernentriegelung
Properties
Operating voltage
16...32 V DC (max. 5,9 W)
Dimensions
150 x 60 x 42 mm (L x B x H)
Housing
Aluminium (eloxiert)
Protection class
IP65
Approvals
DGRL 2014/68/EU Kat:IV
Baumustergeprüft gemäß Druckgeräterichtlinie
DIN EN12263:1998
Kälteanlagen und Wärmepumpen Sicherheitsschalteinrichtungen zur Druckbegrenzung -Anforderungen und Prüfungen; Kategorie IV
DIN EN378:2020
Kälteanlagen und Wärmepumpen - Sicherheitstechnische und umweltrelevante Anforderungen
DIN EN61508:2011
SIL2
Measuring ranges
Measuring range relative pressure (nominal pressure)
-1…500 bar
Measuring range differential pressure (nominal pressure)
0…1 mbar - 0…1.000 mbar
Setting accuracy (from nominal pressure)
0,1 %
Operating conditions
Pressure type
Relativdruck, Differenzdruck
Temperature of the fluid
-40…+125 °C
Ambient temperature
-20…+65 °C
Parts in contact with media
Edelstahl
process connection
Version relative pressure
G ¼“ Innengewinde
Version differential pressure
G ⅛“ Innengewinde
Adapter for process connection
6mm; 8mm oder 10mm
electrical connection
Analogue current output
1x 4…20 mA
Digital inputs/outputs
2x Alarm oder 1x Alarm & 1x Fernentriegelung
Load capacity of the switching contacts DC (24V)
DC1
16 A
DC13
1,5A
Load capacity of the switching contacts AC (230V)
AC1
16 A
AC3
10 A
AC15
7 A
Depending on the application, it may be necessary to use multiple pressure monitors for multiple pressure circuits. In this case, an ES device can be equipped with a channel extension. For this purpose, specially developed SIL 2-capable pressure transmitters (ZT-S…) are connected to the ES device via a secure communication interface. The ES device is capable of monitoring multiple pressure circuits and issues a collective alarm when one of the set limit values ​​is reached. Configuration, logging, and testing work the same as with a single-channel device. ES-Serie Messkanalerweiterung
In addition to additional measuring channels, an expansion unit (ESE) adds additional switching contacts. This enables the creation of a distributed safety chain, e.g., with multiple pressure transmitters and switching outputs. ES-Serie Schaltkanalerweiterung

ES-2

Measurend
D : Pressure
DD : Differential pressure
Safetyfunction
A : DWK (pressure switch)
B : DBK (pressure limiter)
Direction
(H) : Rising/Maximum
(L) : Falling/Minimal
measuring-range
10 : bar
60 : bar
150 : bar
0 : Other (please specify)

Data sheet & documents

Flag of de Allgemeine Daten ES-Serie

Download

Flag of de Datenblatt ZT-S

Download

Flag of de Datenblatt ES-20

Download

Flag of de Datenblatt ES-21

Download

Flag of de Datenblatt ES-22

Download

Flag of de Datenblatt ESE

Download

Flag of de ES-Serie Handbuch

Download

Flag of de Konformitätserklärung ES-Serie

Download

Flag of de SIL2 Zertifikat

Download

Flag of de TÜV Baumusterprüfung (Modul B)

Download

Flag of de TÜV Baumusterprüfung (Modul D)

Download

Flag of de Übersicht Druckmesstechnik

Download

Fluid.iO is your optimal partner for process measurement technology

Application consulting

Together with our application engineers, you will find the right device to sustainably increase the safety and efficiency of your processes.

Commissioning support

After consultation and ordering, we will support you until the measuring device is working optimally at its intended location.

German Producer - Global Supplier


"Made in Germany" - We produce in Germany and deliver worldwide
We have distributors in many industrialized nations worldwide

Find a distributor

Our know-how in process measurement technology is your competitive advantage

  • Standard sensors and devices for process measurement, air conditioning and refrigeration technology
  • customization and development
  • Application and sensor consulting for all types of fluids
  • Problem analysis and development of proposed solutions
As a technology partner, we are at your side with our worldwide sales network

Distribution & Sales

We will advise you personally!

international sales

info@fluidio.de +49-6251-8462-0

Use the ES-2x series & benefit from these advantages

  • excellent safety features: maximum machine and plant safety
  • lower maintenance and system testing costs
  • Bluetooth Connectivity & Smartphone App: Retrieve settings, test & activity logs from the device
  • You monitor the quality parameter viscosity permanently and directly in the process
  • You use a modern, maintenance-free measuring system with very high measuring accuracy

Our application engineers advise you personally, comprehensively and professionally!

Simply contact us by phone or e-mail!

Call us right away!

+49-6251-8462-0

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Logo of Fluid.iO Sensor + Control

Fluid.iO
Sensor + Control
GmbH & Co. KG

An der Hartbrücke 6
64625 Bensheim
Tel.: +49-6251-8462-0
E-Mail: info@fluidio.de