NFAR181-S00

Overview

NFAR181-S00 is a Yokogawa RTD input module with 12 isolated input channels supporting thermocouples and RTDs.

Input Channels and Signals

• Number of input channels: 12, isolated

• Input signal:

• Thermocouples (TC): J, K, E, B (*1), R, S, T (IEC60584:1977), Type N

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

• Switching input signals: Not available

Electrical Characteristics

• Allowable input voltage: ±5 V

• Withstanding voltage: 1500 V AC between input and system for 1 minute

• Input resistance:

• Power ON: ≥ 2 MΩ

• Power OFF: ≥ 2 MΩ

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

• Allowable total resistance of signal source plus wiring: ≤ 40 Ω (wiring resistance per wire) (*2)

• Measurement current: 1 mA

Performance

• Temperature drift: Max. ±30 ppm/°C

• Data refresh cycle: 1 second

• Burn-out detection: Not available

Power and Physical

• Maximum current consumption: 450 mA (5 V DC)

• Weight: 0.2 kg

• External connection: Pressure clamp terminal

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