Description
STAHL ET-436-A-FX-R2-SR-16GB-NOV 15-Inch HMI
Product Introduction
There is a major difference between replacing a normal operator panel and replacing an HMI installed in a classified hazardous area. The R. STAHL ET-436-A-FX-R2-SR-16GB-NOV belongs to the latter category — it combines industrial computing, operator visualization, touchscreen input, and hazardous-area installation requirements in one panel-mounted platform.
The documented configuration uses a 15-inch 1024 × 768 resistive touchscreen, 16 GB system memory, and a quad-core Intel Atom E3845 processor. Its fanless architecture eliminates a mechanical cooling fan, while the sealed industrial construction is intended for demanding process environments.
This exact configuration should not be confused with every other ET-436 unit. The ET-436 family contains different display, processor, storage, communication, and hazardous-area configurations. For replacement work, the complete ordering code ET-436-A-FX-R2-SR-16GB-NOV is the correct starting point.
ET-436-A-FX-R2-SR-16GB-NOV
Key Technical Specifications
- Manufacturer: R. STAHL HMI Systems GmbH
- Exact Model: ET-436-A-FX-R2-SR-16GB-NOV
- Product Category: Industrial HMI / Panel PC
- Application Class: Hazardous-area operator interface
- Display Size: 15 inches
- Display Resolution: 1024 × 768
- Touchscreen: Resistive foil technology
- Function Keys: 8
- Processor: Intel Atom E3845 quad-core
- System Memory: 16 GB
- Cooling: Fanless passive cooling
- Enclosure: Industrial metal construction
- Mounting: Panel mount
- Front Protection: IP65 reported
- Operating Temperature: −20 to +55°C reported
- Power Input: Wide-range DC input reported
- Communication: Multiple industrial interfaces; exact port population should be verified against the individual unit
- Hazardous-Area Certification: ATEX / IECEx certification reported for applicable configuration
- Hazardous Zones: Secondary sources associate this configuration with Zones 1, 2, 21, and 22, but the exact nameplate/certificate must be checked before installation
- System Architecture: Industrial PC / HMI platform
- Status: Discontinued / legacy
- Reported Replacement: ET-436-A-FX-730A100006R-000000000000
The 15-inch display, 1024 × 768 resolution, resistive touchscreen, 8 function keys, 16 GB memory, E3845 processor, and fanless architecture are reported consistently by technical resellers.
Certification warning: Do not treat “ET-436” as a universal hazardous-area certification. Explosion-protection certification is configuration-specific. The actual product nameplate, certificate number, protection marking, and installation documentation must govern the final installation decision.
Application Scenarios & Engineering Pain Points
Oil & Gas Operator Stations
The ET-436 platform is designed for situations where an operator interface has to coexist with classified process areas. A standard commercial PC cannot simply be installed in the same location because ordinary computing equipment does not carry the required explosion-protection approvals.
Petrochemical Process Monitoring
The combination of industrial computing hardware, touchscreen operation, and hazardous-area construction makes this type of panel appropriate for local process visualization and control applications in petrochemical facilities.
Chemical Processing
Chemical plants often require local operator interfaces near process equipment while maintaining strict control over ignition sources. The ET-436 architecture addresses that requirement through its certified industrial enclosure and embedded computing platform.
Offshore and Marine Process Systems
The fanless design is useful in environments where reducing moving parts and maintaining sealed equipment are practical maintenance considerations.
Legacy HMI Replacement
The biggest value of an exact ET-436 replacement is not simply the screen. It is the ability to preserve an existing industrial computing architecture, application environment, panel cutout, wiring arrangement, and hazardous-area approval basis.
QA & Live Testing SOP
With hazardous-area HMIs, our inspection procedure has to go beyond checking whether Windows or the HMI runtime boots.
- Model verification: Confirm the complete
ET-436-A-FX-R2-SR-16GB-NOVidentification. - Nameplate inspection: Record all certification markings, serial number, hardware revision, and electrical ratings.
- Display inspection: Check the entire 15-inch screen for dead pixels, discoloration, scratches, pressure marks, and uneven illumination.
- Touchscreen test: Test the resistive touchscreen across the complete active area.
- Function-key test: Verify all eight physical function keys where fitted.
- Mechanical inspection: Check the front sealing surface, mounting hardware, enclosure, and cable-entry areas.
- Cooling inspection: Confirm that passive heat-dissipation surfaces are clean and undamaged.
- Power-up test: Energize only under controlled conditions using the documented supply requirements.
- System boot test: Verify that the industrial computer initializes correctly without hardware or storage faults.
- Memory/storage verification: Confirm the installed 16 GB configuration and inspect the system for abnormal memory/storage behavior.
- Communication test: Test the interfaces actually required by the application rather than assuming every ET-436 has identical port hardware.
- Touch/display stress test: Operate the HMI continuously long enough to identify intermittent display or touch faults.
- Certification inspection: Verify that certification markings have not been damaged, altered, obscured, or compromised.
- ESD protection: Package the electronic assembly using appropriate ESD and mechanical protection.
For a hazardous-area replacement, certification integrity is part of the functional test. A panel that boots perfectly but has damaged enclosure seals or an uncertified modification is not an acceptable field replacement.
Field Engineer’s Pitfall Guide
❗ Do not buy on the ET-436 family number alone. The family includes multiple hardware generations and configurations. The complete ET-436-A-FX-R2-SR-16GB-NOV designation must be matched.
❗ Do not assume every ET-436 carries the same hazardous-area approval. The exact certification marking on the unit and its corresponding certificate must be checked before installation in Zone 1, Zone 2, Zone 21, or Zone 22.
❗ Do not treat 16 GB as the only computer specification. Processor generation, operating system, storage, interface population, and HMI runtime can all affect application compatibility.
❗ Check the successor carefully. Multiple industrial spare-parts sources report that the ET-436-A-FX-R2-SR-16GB-NOV has been discontinued and replaced by ET-436-A-FX-730A100006R-000000000000. A successor designation should be treated as an engineering replacement candidate, not automatically as a drop-in substitute.
❗ Do not modify a certified enclosure casually. Drilling, replacing cable glands with non-approved components, changing seals, or installing unapproved accessories can invalidate the hazardous-area installation basis.
Intent-Driven FAQ
What is the R. STAHL ET-436-A-FX-R2-SR-16GB-NOV?
It is a hazardous-area industrial HMI/panel PC from R. STAHL HMI Systems, designed for operator visualization and industrial computing applications.
What size display does the ET-436-A-FX-R2-SR-16GB-NOV have?
The documented configuration uses a 15-inch display with 1024 × 768 resolution and a resistive touchscreen.
How much memory does this ET-436 have?
The model designation specifies 16 GB, and technical listings identify 16 GB system memory for this configuration.
What processor is used?
Secondary technical documentation identifies the configuration with a quad-core Intel Atom E3845 processor. This should be verified against the actual unit if processor identity is critical to an operating-system or application compatibility decision.
Is ET-436-A-FX-R2-SR-16GB-NOV explosion-proof?
It is documented as a hazardous-area industrial panel PC with ATEX/IECEx certification reported for the applicable configuration. However, the exact certification marking and certificate must be verified from the physical unit before hazardous-area installation.
Is this model discontinued?
Yes. Multiple industrial spare-parts sources identify ET-436-A-FX-R2-SR-16GB-NOV as discontinued and report ET-436-A-FX-730A100006R-000000000000 as its replacement.
What should I verify before purchasing this HMI?
Verify the complete model code, certification markings, display condition, touchscreen operation, processor/memory configuration, storage, communication ports, operating system/runtime, and hazardous-area certificate compatibility.
Procurement Note
R. STAHL ET-436-A-FX-R2-SR-16GB-NOV is a legacy hazardous-area HMI/panel PC, not an ordinary industrial touchscreen. The 15-inch 1024 × 768 display, 16 GB configuration, fanless architecture, and hazardous-area design make the exact hardware revision important when sourcing a replacement.
The reported successor is ET-436-A-FX-730A100006R-000000000000, but I would not represent it as a blind drop-in replacement without checking the machine’s panel dimensions, certification basis, application software, interfaces, and existing hazardous-area documentation.
For procurement, the safest approach is simple: match the complete nameplate, not just “ET-436.”
