MTL MTL5573 Temperature Converter & Isolator – MTL5000 Series
Imagine a critical temperature monitoring loop in a hazardous petrochemical plant suddenly losing signal integrity — a thermocouple input drifting unchecked, a DCS receiving corrupted data, and process engineers unable to trust their readings. Without a reliable temperature converter and galvanic isolator like the MTL MTL5573, such scenarios can escalate from nuisance alarms to unplanned shutdowns or, worse, safety incidents. The MTL5573 eliminates this risk by providing precision signal conversion and robust isolation between field instruments and control systems.
The MTL5573 occupies a key position within the renowned MTL5000 Series — Eaton MTL’s industry-standard range of Zener barriers and galvanic isolators engineered for Zone 1 and Zone 2 hazardous area applications. Trusted by process engineers across oil & gas, chemical, and power generation industries worldwide, the MTL5000 Series has set the benchmark for intrinsic safety and signal conditioning reliability for decades. The MTL5573 specifically addresses thermocouple and mV signal inputs, converting and isolating them for safe, accurate transmission to control room equipment.
Technical Specifications
- Model: MTL5573
- Series: MTL5000
- Manufacturer: MTL Instruments (Eaton MTL)
- Function: Temperature Converter / Thermocouple Input Isolator
- Input: Thermocouple (multiple types) / mV signal
- Output: 4–20 mA (isolated)
- Isolation: Galvanic isolation between input, output, and power supply
- Hazardous Area Certification: ATEX / IECEx (Zone 1, Zone 2)
- Mounting: DIN rail
- Power Supply: 24 V DC (nominal)
- Weight: 220 g
- Note: Always refer to the official MTL5573 datasheet for complete and certified specifications before installation.
Key Features & Benefits
- Galvanic Isolation: Full three-port isolation eliminates ground loops and protects control system inputs from field-side faults.
- Thermocouple Linearization: Accurate conversion of thermocouple mV signals to industry-standard 4–20 mA output, compatible with all major DCS and PLC platforms.
- Hazardous Area Rated: ATEX/IECEx certified for use in Zone 1 and Zone 2 explosive atmospheres — no need for separate safety barriers in many configurations.
- DIN Rail Mounting: Compact form factor for high-density marshalling cabinet installations.
- Plug-in Terminal Design: Simplifies field wiring, maintenance, and module replacement without rewiring.
- Wide Thermocouple Compatibility: Supports multiple thermocouple types (J, K, T, E, R, S, B, N) for flexible deployment across diverse process applications.
- Cold Junction Compensation: Built-in CJC ensures measurement accuracy regardless of ambient temperature variation.
Industry & Equipment Applications
- Oil & Gas: Wellhead temperature monitoring, refinery process control, pipeline temperature measurement in classified areas.
- Chemical & Petrochemical: Reactor temperature loops, distillation column monitoring, heat exchanger control.
- Power Generation: Turbine exhaust temperature monitoring, boiler control systems.
- Pharmaceutical: Cleanroom and process vessel temperature validation in GMP environments.
- Water & Wastewater: Temperature monitoring in pump stations and treatment facilities.
- Compatible Equipment: Yokogawa CENTUM, Honeywell Experion, ABB 800xA, Siemens PCS 7, Emerson DeltaV, and all standard 4–20 mA DCS/PLC input cards.
System Integration & Compatible Parts
The MTL5573 integrates seamlessly within the MTL5000 Series ecosystem. Compatible and complementary components include:
- MTL5544: 4–20 mA isolator / repeater for analog signal loops
- MTL5546: Dual-channel 4–20 mA isolator
- MTL5576: RTD temperature converter (Pt100 input)
- MTL5582: Frequency / pulse isolator for flow measurement
- MTL5523: Switch / proximity detector interface
- MTL DIN rail power supplies and termination assemblies
Contact Konmask.com for system-level BOM support and cross-reference assistance.
Our Quality Assurance Process
At Konmask.com, every MTL5573 unit we supply undergoes a rigorous sourcing and verification process:
- Sourced from authorized distributors and verified supply chains to ensure genuine MTL Instruments product.
- Visual inspection and packaging integrity check upon receipt.
- Batch traceability records maintained for full supply chain transparency.
- Secure anti-static packaging for safe international shipping.
- Documentation support: datasheet, declaration of conformity, and certification copies available on request.
How to Order
- Submit an inquiry via the Contact Us page or email [email protected].
- Provide your required quantity, delivery destination, and any urgency requirements.
- Receive a formal quotation within 1 business day.
- Confirm order and receive proforma invoice.
- Shipment arranged via DHL / FedEx / sea freight per your preference.
We support T/T, L/C, and Western Union payment terms for international B2B orders.
Why Choose Konmask.com?
- Industrial Automation Specialists: Focused exclusively on PLC, DCS, and process control components — we speak your engineering language.
- Global Supply Network: Access to hard-to-find and obsolete MTL parts through our verified distributor network.
- Fast Response: Dedicated B2B inquiry team with <24-hour quotation turnaround.
- Export Experience: Extensive experience shipping to Europe, Southeast Asia, Middle East, and the Americas.
- Technical Support: Pre-sales application guidance from engineers familiar with MTL product lines.
Frequently Asked Questions
Q: What is the difference between MTL5573 and MTL5576?
A: The MTL5573 accepts thermocouple (mV) inputs, while the MTL5576 is designed for RTD (Pt100/Pt1000 resistance) inputs. Both output a 4–20 mA signal and are part of the MTL5000 Series.
Q: Is the MTL5573 suitable for Zone 0 hazardous areas?
A: The MTL5573 is certified for Zone 1 and Zone 2 applications. For Zone 0, please consult the official MTL certification documentation and contact our technical team.
Q: Can I use the MTL5573 with a Siemens S7 PLC analog input card?
A: Yes. The 4–20 mA output is compatible with standard analog input modules from Siemens, Rockwell, Yokogawa, and other major PLC/DCS manufacturers.
Q: Do you provide the original MTL5573 datasheet?
A: Yes. We can provide the official MTL Instruments datasheet and relevant certifications upon request. Contact [email protected].
Q: What is the minimum order quantity (MOQ)?
A: We supply from single units upward. There is no minimum order quantity for standard stock items. Contact us for volume pricing on larger quantities.
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