Stahl ET-436-AT-R1-TFT-TX-60GB-P Zone 1 IP65 Panel PC
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Stahl ET-436-AT-R1-TFT-TX-60GB-P IP65 Hazardous Area 15″ Panel PC (Rev HW 2.05.23)
The R. STAHL ET-436-AT-R1-TFT-TX-60GB-P (Hardware Revision: 2.05.23) is an explosion-protected, heavy-duty 15-inch industrial panel PC engineered specifically for installation in hazardous marine, offshore, and petrochemical operating environments. Classified under the proven R. STAHL EAGLE / EXICOM 400 Series platform, this human-machine interface (HMI) delivers real-time SCADA and machinery supervisory control across ATEX/IECEx Zone 1, Zone 21, Zone 2, and Zone 22 atmospheres without requiring bulky, heavy flameproof cast enclosures.
Manufactured with a saltwater-resistant front bezel sealed to IP66/IP65 ingress protection and a rugged stainless steel rear chassis, the ET-436 combines an analog resistive touch screen with an integrated 10/100Base-TX copper Ethernet controller (TX variant). Power distribution and external process wiring terminate inside an integrated increased safety (Ex e) connection terminal compartment, complemented by galvanically isolated, intrinsically safe (Ex i) auxiliary ports for peripheral human-interface devices in explosive gaseous atmospheres.
Model Details
- Manufacturer: R. STAHL HMI Systems GmbH
- Product Line: Series 400 Operator Interfaces / EAGLE Platform
- Model Code: ET-436-AT-R1-TFT-TX-60GB-P
- Hardware Revision: Rev HW 2.05.23
- Manufacturer Part Number (MPN): ET-436-AT-R1-TFT-TX-60GB-P (Legacy / Alternative P/N: ET-436-A-TX-R1-TFT-60GB-P)
Technical Details
| Parameter | Specification |
|---|---|
| Display Size & Type | 15.0-inch (38 cm) TFT Active Matrix Color LCD, 4:3 Aspect Ratio |
| Native Resolution | XGA (1024 × 768 pixels), 16.7 Million Colors |
| Luminance & Contrast | 350 cd/m² (typ.), 700:1 Contrast Ratio, LED Backlight MTBF ≥ 70,000 hrs (@ +25°C) |
| Touch Interface | 5-Wire Analog Resistive Touchscreen, scratch hardness pencil test ISO 15184, gloved operation compatible |
| Nominal Supply Voltage | 24 V DC Regulated (Permissible input range: 20.4 V DC to 28.8 V DC; Max allowable Um = 30 V DC) |
| Current & Power Consumption | Nominal current: 1.2 A to 1.5 A @ 24 V DC; Rated operational power: ~36 W (peak surge ≤ 45 W) |
| Internal Solid-State Storage | 60 GB Industrial Solid State Disk (SSD / Flash drive architecture) |
| Network Connectivity | 1 × 10/100Base-TX Fast Ethernet (RJ45 / Ex e terminal allocation, copper twisted pair up to 100 m) |
| Serial Communications | 1 × RS-232 / RS-422 / RS-485 switchable serial fieldbus interface (Ex e connection chamber) |
| USB Channels | Up to 2 × USB ports (1 × Ex i intrinsically safe channel for field HMI inputs, 1 × Ex e channel for service access) |
| Terminal Allocations & Wiring | Ex e connection box screw clamp terminals: Conductor size 0.2 to 2.5 mm² (AWG 24 to AWG 14), recommended tightening torque 0.5 to 0.6 Nm |
| Cable Glands & Entries | M16 × 1.5 (cable Ø 5–9 mm) and M20 × 1.5 (cable Ø 7–13 mm) Ex e certified glands (Type 8161) |
| Ingress Protection Rating | Front Panel: IP65 / IP66 (NEMA 4X equivalent); Rear Enclosure: IP65 / IP66 |
| Operating Temperature Range | Standard: -20°C to +50°C continuous operation (+55°C intermittent ≤ 5 hrs); Storage: -30°C to +60°C |
| Permissible Relative Humidity | 90% relative humidity at +40°C (non-condensing); Cyclic damp heat resistance up to 95–100% RH |
| Vibration & Shock Immunity | Sinusoidal vibration: 5 to 13.2 Hz (±1 mm), 13.2 to 100 Hz (±0.7 g); Shock: 20 g / 11 ms duration across all 3 axes |
| Physical Dimensions & Cut-out | Outer: 440 mm (W) × 340 mm (H) × 165 mm (D); Panel Cut-out: 427.5 mm × 327.5 mm (±0.5 mm); Wall thickness ≤ 8 mm |
| Net Mass / Weight | Approx. 18.0 kg (39.7 lbs) including integrated Ex e junction housing |
Features
- Class-Certified Zone 1 / 21 Explosion Protection: Certified under Ex d e ia ib mb [ia ib] IIC T4 Gb for installation in hazardous gas, vapor, and combustible dust environments without auxiliary purge or pressurized air cabinets.
- High-Luminance Marine Display: 15.0-inch XGA (1024 x 768) TFT LCD screen providing 350 cd/m² luminance, optical anti-glare finish, and a rugged 5-wire analog resistive touch overlay designed for single-touch operation using bare, wet, or gloved hands.
- Dedicated Ex e Wiring Enclosure: Integrated increased-safety terminal chamber fitted with heavy-gauge cage-clamp / screw terminals and metric cable glands, eliminating the need for external explosion-proof junction boxes.
- Intrinsically Safe Peripheral Interfacing: Features intrinsically safe (Ex i) USB ports alongside Ex e ports, allowing field-connection of certified barcode scanners, external mice, or industrial pointer devices directly within hazardous areas.
- Corrosion & Vibration Resistant Construction: Front-panel IP65/IP66 polyester-coated finish backed by marine-grade anodized aluminum and stainless steel housing, tested against continuous sinusoidal/broadband hull vibrations (DNV/GL Class A/B).
Equipment Compatibility & System Architecture
- Automation PLCs & PACs: Fully compatible via native Ethernet (Modbus TCP/IP, Ethernet/IP, Siemens Industrial Ethernet, PROFINET over TCP) and serial links (Modbus RTU RS-485, DF1) with:
- Siemens SIMATIC S7-300, S7-400, S7-1200, and S7-1500 families.
- Rockwell Automation Allen-Bradley ControlLogix and CompactLogix series.
- Schneider Electric Modicon Quantum, M340, and M580 controllers.
- WAGO I/O 750 Series & Beckhoff CX Embedded PCs.
- Marine Engine Control & Tank Gauging: Interfaces with Kongsberg K-Chief / AutoChief, Wärtsilä propulsion control panels, Rolls-Royce Marine automation, Emerson Damcos tank monitoring systems, and Kongsberg Maritime custody transfer skids.
- SCADA / Supervisory Packages: Pre-configured for Windows Embedded Standard / Win7 / Win10 IoT environments executing Wonderware InTouch, Siemens WinCC flexible / TIA Portal Runtime, Rockwell FactoryTalk View ME/SE, and AVEVA Plant SCADA.
Applications
- Offshore Oil Rigs & Drill Ships: Mud logging systems, blowout preventer (BOP) acoustic control stations, choke manifold instrumentation, and shale shaker monitoring in Class I, Div 1/Zone 1 locations.
- Chemical & Gas Tankers (LNG/LPG): Cargo machinery rooms, deck compressor houses, inert gas generator (IGG) monitoring, and manifold custody transfer consoles.
- Engine Room Machinery Monitoring: Main engine auxiliary monitoring, bunker fuel conditioning modules, scrubber exhaust wash skids, and ballast water treatment system (BWTS) main consoles.
- Refineries & Onshore Tank Farms: Hazardous zone tank gauging, fuel blending stations, flammable additive batch dosing, and localized pump skids.
- Pharmaceutical & Paint Manufacturing: Solvent extraction plants, active pharmaceutical ingredient (API) reactor suites, and industrial spray booths.
Frequently Asked Questions
What does the “TX” designation indicate on the Stahl ET-436?
The “TX” designation indicates that the panel PC communicates over copper twisted-pair Fast Ethernet using the 10/100Base-TX standard. It interfaces via standard industrial industrial CAT5/CAT6 network cables over runs up to 100 meters. For optical long-haul links without repeaters, the companion “FX” model is used.
Can I install the ET-436 directly into an ATEX Zone 1 area without an explosion-proof cabinet?
Yes. The ET-436 is fully certified as a standalone Zone 1 panel-mount device. Its front face is intrinsically sealed and certified against gas and dust ignition, while its rear termination compartment is built to “Ex e” (Increased Safety) standards. It can be integrated into any standard IP54/IP65 sheet-metal or stainless steel console in Zone 1 or Zone 21 areas.
How does the analog resistive touchscreen perform in marine environments with wet gloves?
The 5-wire analog resistive touchscreen senses mechanical touch pressure rather than surface electrical capacitance. It is completely unaffected by standing sea spray, conductive water films, oily handprints, or heavy insulated deck gloves, making it significantly more reliable on vessels than modern projected-capacitive (PCAP) displays.
What is the purpose of Hardware Revision HW 2.05.23?
Hardware Revision 2.05.23 identifies the specific motherboard, power converter board, and embedded BIOS/firmware build. It ensures direct pin-for-pin component and driver parity when swapping out older Series 400 operator terminals on existing marine bridge consoles or engine control room desks without updating host PLC communication software.
Can the internal 60 GB SSD drive be upgraded or cloned?
Yes. The internal solid-state disk can be cloned to an OEM-grade solid-state flash disk using standard block-level drive-imaging software. However, any hardware replacement must be carried out in an explosion-protection certified electronics facility using compatible shock-resistant components to preserve the device’s ATEX/IECEx thermal and safety envelope.
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