Hazardous Area Temperature Measurement Solution – STAHL 9182/20-51-11 | Series 9182
Where This Product Is Used
The STAHL 9182/20-51-11 is an intrinsically safe temperature transmitter engineered for continuous process measurement in explosive and hazardous environments. Typical deployment scenarios include:
- Oil & Gas Upstream/Downstream: Wellhead temperature monitoring, pipeline process control, and refinery distillation column instrumentation in Zone 0 and Zone 1 classified areas.
- Chemical & Petrochemical Plants: Reactor vessel temperature loops, solvent storage tank monitoring, and exothermic process control where flammable vapors are present.
- Pharmaceutical Manufacturing: Clean-room and solvent-handling zones requiring IECEx/ATEX-certified instrumentation for GMP compliance.
- Offshore Platforms: Topside and subsea process skids where marine-grade, explosion-protected transmitters are mandatory.
- Power Generation: Turbine lube-oil systems, hydrogen-cooled generator monitoring, and fuel-gas conditioning skids.
- Food & Beverage: Fermentation vessels and CIP/SIP systems in areas classified for flammable cleaning agents.
Technical Specifications
| Part Number | 9182/20-51-11 |
| Manufacturer | STAHL (R. STAHL AG) |
| Series | 9182 |
| Device Type | Intrinsically Safe Temperature Transmitter |
| Input | RTD (Pt100) / Thermocouple (configurable) |
| Output Signal | 4-20 mA (2-wire HART) |
| Supply Voltage | 11.5-30 V DC |
| Explosion Protection | Ex ia IIC T4-T6 Ga/Gb |
| Certification | ATEX, IECEx |
| Hazardous Zone | Zone 0, Zone 1, Zone 2 |
| Ambient Temperature | -40 C to +70 C |
| Enclosure Protection | IP66/IP67 |
| Housing Material | Stainless Steel / GRP |
| Weight | Approx. 140 g |
| Communication Protocol | HART 7 |
| Mounting | DIN rail / field-mount head |
Why Engineers Specify This Model
- Dual Certification (ATEX + IECEx): A single SKU satisfies both European and international project specifications, reducing procurement complexity on global EPC projects.
- Zone 0 Rated (Ex ia): Intrinsic safety category ia permits installation directly in the most hazardous zone without additional barriers in many configurations.
- Universal Sensor Input: Accepts RTD and thermocouple inputs, allowing one transmitter model to cover multiple loop types across a plant.
- HART 7 Communication: Enables remote configuration, diagnostics, and asset management via AMS, PACTware, or any HART-compatible DCS/PLC system.
- Proven STAHL Reliability: R. STAHL AG has over 100 years of explosion-protection expertise; the 9182 series is a field-proven platform widely specified in global O&G and chemical projects.
- Compact DIN-Rail Form Factor: Fits standard 35 mm DIN rail in Ex e junction boxes or marshalling cabinets, minimizing panel footprint.
Complete System Bill of Materials
For a complete intrinsically safe temperature measurement loop, engineers typically specify the following alongside the 9182/20-51-11:
- Pt100 RTD sensor assembly with thermowell (process-specific selection)
- STAHL Ex e field junction box (Series 8146 or 8570)
- Intrinsically safe Zener barrier or galvanic isolator (if not using Ex ia loop power)
- HART-compatible AI module on DCS/PLC (e.g., Siemens ET 200SP, Rockwell 1756-IF8H)
- Shielded, twisted-pair instrument cable (per IEC 60079-14)
- Cable glands rated Ex e or Ex d for field enclosure entry
Compliance & Industry Standards
- ATEX Directive 2014/34/EU – II 1 G Ex ia IIC T4-T6 Ga
- IECEx Scheme – IECEx certified
- IEC 60079-0: General requirements for Ex equipment
- IEC 60079-11: Intrinsic safety “ia”
- IEC 61508 / IEC 61511: Functional Safety (SIL assessment available)
- NAMUR NE 43: Signal levels for fault indication (4-20 mA)
- NAMUR NE 107: Self-monitoring and diagnosis of field devices
Quality Assurance & Sourcing
Konmask.com sources the STAHL 9182/20-51-11 exclusively through authorized distribution channels and verified industrial surplus networks. Every unit undergoes the following before dispatch:
- Visual inspection for label integrity, certification markings, and housing condition
- Functional power-on verification (where applicable)
- Cross-reference of serial number against manufacturer documentation
- Anti-static, moisture-barrier packaging with desiccant
Counterfeit-free guarantee: all products are traceable to original manufacturer or authorized distributor invoices.
How to Source This Part
- In Stock: Contact us for real-time availability and lead time confirmation.
- Request a Quote: Email [email protected] with your project quantity and required delivery date.
- Bulk / Project Orders: Volume pricing available for EPC contractors and MRO procurement teams.
- Expedited Shipping: DHL Express / FedEx International Priority available for urgent shutdowns and turnarounds.
- Export Compliance: We handle export documentation, ECCN classification, and country-of-origin certificates.
Application-Specific FAQ
Q: Can the 9182/20-51-11 be used in Zone 0 without an additional safety barrier?
A: Yes – as an Ex ia (intrinsic safety category ia) device, it is certified for Zone 0 installation. Verify the complete loop entity parameters (Ui, Ii, Pi, Ci, Li) against your associated apparatus before installation.
Q: Is HART configuration possible without removing the transmitter from the hazardous area?
A: Yes. HART 7 communication allows full remote configuration via a HART communicator or asset management software connected at the safe-area end of the loop.
Q: What sensor types are compatible?
A: The 9182 series supports Pt100 (2-, 3-, 4-wire RTD), Pt1000, Ni100, and standard thermocouple types (J, K, T, E, N, R, S, B). Confirm the specific input configuration for suffix -51-11 in the STAHL datasheet.
Q: Does Konmask provide a certificate of conformity?
A: Yes. A certificate of conformity and, where available, the original manufacturer test report are included with every shipment.
Q: What is the typical lead time?
A: In-stock units ship within 1-3 business days. Out-of-stock items are sourced within 2-6 weeks depending on global availability.
2026 Konmask.com. All rights reserved.
Original Source: https://Konmask.com
Contact: [email protected] | +0086 19859288691
