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MTL Instruments | MTL5582B RTD Resistance Isolator

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About the Product

MTL5582B RTD Resistance Isolator for Hazardous Zones

Core Technical Specifications

Input RTD type: 2/3/4-wire (switch-selectable, factory-set for 3-wire)

Resistance range: 10Ω to 400Ω (supports Pt100, DIN 43760)

Excitation current: 200µA (prevents RTD self-heating)

Output range: 10Ω to 400Ω (100µA to 5mA source)

Accuracy drift: ±10mΩ/°C (±0.01% of range)

Response time: <1s to 96% of final value

Open-circuit fail-safe: Upscale to 420Ω

Power supply: 20-35V DC (28-35mA consumption)

Industrial Use Cases

High-temperature monitoring in oil refineries (Zone 0)

Chemical reactor temperature control (Division 1, Group A)

Gas pipeline frost protection systems

Pharmaceutical batch process validation

Mining equipment thermal overload protection

Key Advantages

Eliminates ground loops in 3-wire RTD installations

Prevents false readings from cable resistance errors

Safe for Group A (acetylene) hazardous environments

LED power indicator for quick diagnostics

Low 0.8W power dissipation reduces heat buildup

Installation Guide

Mount on standard DIN rail (safe area only)

Use shielded twisted pairs for RTD connections

Verify switch settings match RTD wiring (2/3/4-wire)

Ensure ≤5mA load on output terminals

Ground terminal must be earthed

Package Contents

1x MTL5582B isolator unit

1x DIN rail clip

Termination guide (printed)

Shipping & Support

In stock - ships same day via Fedex/DHL/UPS

24/7 technical support for installation issues

12-month warranty (excludes misuse/overvoltage)

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  • Custom Calibration: Provide your specifications, and we’ll handle the rest with precision.
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