Yokogawa NFAR181-S50 RTD Input Module

Frequently Asked Questions (FAQ)

Q1: What types of RTDs does NFAR181-S50 support?
A1: It supports 3-wire Pt100 and JPt100 RTDs in compliance with JIS and IEC standards.

Q2: Are the input channels isolated?
A2: Yes, all 12 input channels are electrically isolated for improved noise immunity and safety.

Q3: What is the measurement current per channel?
A3: The module supplies 1 mA per channel for RTD measurement.

Q4: What is the input resistance?
A4: Input resistance is ≥2 MΩ both when the module is powered and unpowered.

Q5: What is the maximum allowed wiring resistance?
A5: Each wire must not exceed 40 Ω, and the resistance of the three wires must be equal.

Q6: Is burn-out detection available?
A6: Yes, burn-out detection is available for all channels with a detection time of 60 seconds.

Q7: Does it support MIL connectors?
A7: No, the NFAR181-S50 uses only pressure clamp terminal connections.

Q8: What are the module’s dimensions and weight?
A8: The module measures 130 x 107.5 x 32.8 mm and weighs 0.2 kg.

NFAR181-S50 RTD Input Module Yokogawa

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