System Products
Pressure transducers for continuous measurement or pressure switches in liquids.











































































System Products
Endress+Hauser’s system products and data managers form the digital “infrastructure around the measurement point,” the power, signal conditioning, visualization, storage, and connectivity layer that helps your instruments deliver reliable data to control, safety, and business systems. The portfolio spans paperless data managers and recorders, process indicators and transmitters, power supplies and intrinsically safe barriers, gateways and modems (wired and wireless), WirelessHART components, device‑configuration tablets, energy and application managers, surge arresters, and inventory management modules. The unifying value proposition is simple: make measurement data trustworthy, available, and compliant, locally for operators and remotely for higher‑level systems, while providing electrical protection and robust communication across heterogeneous protocols. Typical payoffs include faster commissioning, better diagnostics, fewer nuisance trips, and audit‑ready data trails. Endress+Hauser publishes a consolidated view of these categories, benefits, and industry coverage (chemical, life sciences, oil & gas/marine, F&B, water/wastewater, power, MMM, and pulp & paper) on its System products overview. The emphasis is on complete solutions around the loop (including cybersecurity and approvals), not just individual devices.
At the heart of the portfolio are data managers and data loggers that acquire, visualize, alarm, and archive process values without paper. The Memograph M RSG45 is the flagship: a configurable data and energy manager with up to 20 analog/HART® inputs plus digital I/O, available as a panel instrument or DIN‑rail unit. It records and analyzes values, supervises limits, and, critically, stores data in a tamper‑proof format with user management and electronic signatures that support FDA 21 CFR Part 11 workflows. A HART input card turns the RSG45 into a HART gateway, enabling device access via FieldCare without breaking the loop. Application packages extend the device into domain‑specific roles: energy calculations for water/steam, batch functions, wastewater/Rain Spillway Basin monitoring, and Telealarm for remote stations. For lighter duty, the Ecograph T RSG35 provides universal paperless recording (up to 12 universal inputs) with simple integration over common comms. Centralized data handling is addressed by Field Data Manager (FDM) MS20/MS21 software, which ingests “live” or stored data into an SQL database, preserves manipulation protection, provides audit trails/user management, and automates reporting, useful when you must demonstrate data integrity to QA, regulators, or customers. Common applications include boiler/utility monitoring, energy balances for ISO 50001 programs, environmental monitoring at unstaffed sites, and general process troubleshooting where structured, long‑term trending is essential.
Operators and maintenance teams still need clean local context, and that’s the role of process indicators and control units. Loop‑powered field indicators like RIA14/RIA15 display 4–20 mA (and pass HART transparently) in robust housings with backlit readouts; they’re ideal for at‑a‑glance checks in the field without adding panel power. For panel or field‑mounted multivariable indication and basic control, the RIA45 (panel) and RIA46 (field) add universal inputs, math, limit relays, and signal conversion, useful for signal splitting, unit conversion, or local limit supervision. Where you need more “brains,” the RMA42/RMA422 process transmitters combine universal inputs, integrated loop power supplies, analog/digital outputs, and configurable logic/mathematics; options cover SIL use cases. These compact units frequently sit between transmitters and PLCs/DCS to provide scaling, alarming, simple control interlocks, or independent display/alarm paths (e.g., boiler level limiters, temperature loop monitoring, or differential measurements). Together they reduce DCS engineering overhead for small tasks while improving operator visibility and providing a hardened, front‑line diagnostic surface.
Signal integrity and safety are managed by dedicated power supplies and barriers. The RN‑series interface modules (e.g., RN22, RN42, RN221N) provide galvanic isolation, intrinsic safety interfacing, and flexible power feed to 2‑ and 4‑wire devices, even in hazardous areas. An important capability is signal doubling (per NAMUR NE 175) to open a second, galvanically isolated channel for optimization/monitoring without disturbing the primary automation loop, handy when you want to feed a data manager or historian in parallel with the DCS. RN modules support HART transparency, wide‑range power, and SIL up to SC 3 depending on configuration. For cabinet‑level resilience, the RNF22 power feed‑in module supplies redundant 24 V DC to the interface bus and provides group error signaling. Typical uses include powering remote Ex loops, isolating long cable runs to eliminate ground differentials, splitting a measurement to both safety and optimization systems, and standardizing marshalling practices with pluggable, DIN‑rail form factors. Endress+Hauser aggregates this category under “Power supplies & barriers,” highlighting Ex approvals, galvanic isolation of 4–20 mA, and worldwide standards coverage.
Connectivity options cover both wired and wireless access, from maintenance modems to plant‑wide gateways. Fieldgate FXA42 is a multi‑interface (Ethernet/WLAN/cellular) gateway/data logger with an integrated web server; it accepts 4–20 mA and digital inputs, counts pulses, logs values, generates alarms, and forwards data via Modbus TCP/RS‑485. An internal “Web‑PLC” supports basic logic, enabling small remote monitoring skids without separate controllers. For point‑to‑point setup and service, Commubox FXA195 (USB/HART) and Commubox FXA291 (USB/CDI for Endress+Hauser devices) bridge laptops/tablets to instruments; FieldPort SFP20 is a USB modem for IO‑Link devices, and FieldPort SFP50 adds USB/Bluetooth to configure HART/PROFIBUS PA/Foundation Fieldbus in safe or hazardous areas. These tools standardize commissioning workflows and keep you off ladders and inside safe zones by enabling remote parameterization and diagnostics. In practice: use FXA195 for online device configuration with FieldCare/DeviceCare, FXA291/TXU10 for CDI‑based products, SFP20 for IO‑Link sensors, and FXA42 when you need a small web‑enabled RTU/logger to move data upstream.
When cabling is impractical or you need rapid expansion, WirelessHART closes the gap. Endress+Hauser’s adapter concept lets you add WirelessHART or encrypted Bluetooth® to existing 4–20 mA/HART instruments: the SWA70 adapter (battery or powered) connects HART/analog devices into a WirelessHART mesh, while the FieldPort SWA50 converts HART to Bluetooth®/WirelessHART for secure local access or cloud connectivity. The WirelessHART Fieldgate SWG70 is the gateway: it manages the self‑organizing 2.4 GHz network and bridges it to host systems via HART‑IP, Modbus TCP/RTU, OPC, or EtherNet/IP; Zone 2 options and intrinsically safe antenna ports support hazardous‑area deployments. For cloud integration without touching the control system, FieldEdge SGC200 (Bluetooth to LTE cloud) and SGC500 (plant Ethernet to cloud) stream asset and diagnostic data into the Netilion IIoT ecosystem (Analytics, Health, Library, Inventory, Connect). On the portable side, Field Xpert tablets (SMT70 for Zone 2/non‑Ex, SMT77 for Zone 1) arrive with pre‑installed driver libraries, support major protocols, and link directly to Netilion, so service techs can scan assets, pull device reports, and push configuration and documentation to a shared library. Common use cases: condition monitoring of rotating equipment and remote wells, temporary mesh coverage during turnarounds, digital MRO workflows, and remote expert support.
Energy and application managers provide “ready‑to‑apply” computing where mass/energy balances or dosing precision matter. The EngyCal RS33 is a steam calculator that computes steam mass and energy using IAPWS‑IF97 from measured flow, temperature, and/or pressure; it outputs power/energy/mass/volume and supports Ethernet/fieldbus interfaces, useful for boiler efficiency, SIP/CIP steam tracking, and energy billing. For liquids, the EngyCal RH33 BTU meter quantifies heating/cooling energy (EN1434) with options for custody transfer and bidirectional metering (e.g., charging/discharging thermal storage). On the batching side, the RA33 batch controller logs batches, drives valves/pumps with single‑ or two‑stage control, performs after‑run correction (to compensate valve closure delays), and applies API/ASTM volume corrections (e.g., D1250‑04 for mineral oils). For broader site balances, the Memograph M energy package turns the RSG45 into an energy hub (steam/water) and forwards results to control systems; Endress+Hauser documents energy monitoring solutions where Memograph bridges sensors to PROFINET and mobile tools. Together, these modules enable transparent, auditable consumption KPIs for ISO 50001 programs, utility cost allocation, and heat exchanger performance tracking.
Electrical robustness and inventory visibility round out the portfolio. Surge arresters such as HAW562 and HAW569 clamp lightning‑induced and system‑generated overvoltages on signal, communication, and power lines with impedance‑free connections to avoid measurement errors; they are designed for field mounting near transmitters and fieldbus segments in exposed plants (e.g., tank farms, water/wastewater, offshore). For bulk‑liquid sites, Tankvision provides modular, web‑based inventory management: the NXA820 Tank Scanner reads gauges and performs standard‑based volume/mass calculations; the NXA821 Data Concentrator aggregates multiple scanners; and the NXA822 Host Link exposes data to PLC/DCS (Modbus). For LNG terminals and peak‑shaving plants, Tankvision LMS NXA86 integrates level, temperature, density, and pressure instruments, calculates standard volumes/mass/flow, and offers stratification and rollover prediction. All components run on distributed LAN architectures and standard browsers, with no proprietary clients; scale from small depots to refineries with hundreds of tanks; and include OPC/HART‑IP/Modbus/EtherNet/IP for host integration.
For systems designers, plant engineers, and operators, the architectural guidance is to treat these components as building blocks around each measurement point: protect and power (RN/HAW), normalize and display (RIA/RMA), record and compute (RSG/RSG35/EngyCal/RA33), and connect (Fieldgate/WirelessHART/FieldEdge/Field Xpert/Commubox/FieldPort) to the systems and services you already use. The result is a layered design that improves availability (diagnostics, redundancy), compliance (tamper‑proof storage, audit trails, 21 CFR Part 11 options), and lifecycle productivity (ease of device access, Netilion‑enabled asset insights). Endress+Hauser’s category pages emphasize exactly this: simple installation, user‑friendly operation, proactive diagnostics, multi‑protocol flexibility, and the advantage of sourcing the full loop from a single vendor. Typical application clusters include utilities and energy (steam/water/air), environmental and remote networks, hygienic processing, chemical/petrochemical tank farms, and marine/offshore inventory management, each benefiting from a consistent approach to power, protection, visibility, and data integrity.
Vector, your Authorized Endress+Hauser Representative