NFAR181-S50

Product Overview

NFAR181-S50 is a Yokogawa RTD input module with 12 isolated channels, supporting Pt100 and JPt100 sensors for precise temperature measurement.

Identification

• Product ID: NFAR181-S50

• Model: NFAR181 RTD Input Module

• Type: RTD Input Module

• Suffix codes: –S Standard type, 5 No explosion protection, 0 Basic type

Channel & Signal Data

• Number of input channels: 12 isolated

• Input signal: RTD (JIS C 1604, IEC 60751)

  • Pt100 three-wire type (JIS C 1604:1989, IEC 60751:1986)

  • JPt100 three-wire type (JIS C 1604:1989)

  • Type N supported

• Allowable input voltage: ±5 V

• Input resistance: ≥2 MΩ (power ON), ≥2 MΩ (power OFF)

• Accuracy: ±0.03% of full scale (0–400 Ω)

• Allowable total resistance of signal source plus wiring: ≤40 Ω per wire

• Measurement current: 1 mA

• Temperature drift: Max ±30 ppm/°C

Electrical Data

• Withstanding voltage: 1500 V AC for 1 min (between input and system)

• Maximum current consumption: 450 mA @ 5 V DC

• External connection: Pressure clamp terminal

Performance

• Data refresh cycle: 1 s

• Burn-out detection: Configurable UP/DOWN, detection time 60 s

Mechanical Data

• Weight: 0.2 kg

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