MTL4575

Overview

Eaton MTL4575 Temperature Converter is designed for hazardous area applications, supporting thermocouples, RTDs, and mV inputs.

Basic Information

• Manufacturer: Eaton

• Series: MTL

• Product number: MTL4575

• Type: Temperature Converter

• Channels: 1

Signal Sources

• Thermocouples (THC): Types J, K, T, E, R, S, B, N (BS 60584, XK)

• mV input: Supported

• RTDs: 2/3/4‑wire platinum (BS 60751)

• Supported sensors: Pt100, Pt500, Pt1000; Cu‑50, Cu‑53; Ni100/500/1000 (DIN 43760)

Hazardous Area Approvals

• Zone 0: IIC, T4–6 hazardous area

• Division 1: Group A hazardous location

Input Specifications

• Signal range: –75 to +75 mV, or 0–400 Ω (0–1000 Ω Pt & Ni sensors)

• Signal span: 3–150 mV, or 10–400 Ω (10–1000 Ω Pt & Ni sensors)

• RTD excitation current: 200 µA nominal

Compensation

• Cold junction compensation: Automatic or selectable

• Error: ≤ 1.0 °C

Rejection Performance

• Common mode rejection: 120 dB @ 240 V, 50/60 Hz (500 ms response)

• Series mode rejection: 40 dB @ 50/60 Hz

Calibration Accuracy (20 °C)

• Inputs (500 ms response):

  • mV/THC: ± 15 µV or ± 0.05 % of input value (whichever greater)

  • RTD: ± 80 mΩ

• Output: ± 11 µA

Temperature Drift (Typical)

• mV/THC input: ± 0.003 % of input value/°C

• RTD input: ± 7 mΩ/°C

• Output: ± 0.6 µA/°C

Example (RTD Input, 500 ms Response)

• Span: 250 Ω

• Accuracy: ± 0.1 % of span

• Temperature drift: ± 1.0 µA/°C

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