Product Description
🔹 General Information
|
Manufacturer |
Yokogawa |
|---|---|
|
Model/Part Number |
NFAR181-S00 S2 |
|
Description |
RTD Input Module (12-channel, Isolated) |
🔹 Description Summary
The NFAR181-S00 S2 is a 12-channel isolated RTD input module, designed for precise temperature measurement using Pt100 or JPt100 sensors. It supports multiple industrial temperature standards and ensures high accuracy and noise immunity through isolation and built-in diagnostics.
🔹 Technical Specifications
|
Item |
Specification |
|---|---|
|
Input Type |
RTD: Pt100, JPt100 (three-wire type) |
|
Number of Channels |
12 (Isolated) |
|
Input Standards |
JIS C 1604:1997, IEC 60751:1995 (Pt100) |
|
JIS C 1604:1989 (JPt100) |
|
|
Allowable Input Voltage |
±5 V |
|
Withstanding Voltage |
1500 V AC (input to system, 1 min) |
|
Input Resistance |
≥2 MΩ (Power ON/OFF) |
|
Measurement Current |
1 mA |
|
Accuracy |
±0.03% of full scale (for 0 to 400 Ω) |
|
Wiring Resistance (per wire) |
Max. 40 Ω |
|
Total Resistance (signal + wire) |
40 Ω or less |
|
Temperature Drift |
Max. ±30 ppm/°C |
|
Burn-out Detection |
Available (UP/DOWN), detection time: 60 sec |
|
Data Refresh Cycle |
1 second |
|
Maximum Current Consumption |
450 mA (5 V DC) |
|
Weight |
Approx. 0.2 kg |
|
External Connection |
Pressure clamp terminal |
🔹 Model and Suffix Code Breakdown
|
Model |
NFAR181 – RTD Input Module (12-channel, Isolated) |
|---|---|
|
-S |
Standard type |
|
5 |
With no explosion protection |
|
0 |
Basic type |
|
S2 |
Likely internal designation or manufacturing revision |
🔹 Optional Accessories
|
Option Code |
Description |
|---|---|
|
/R8S00 |
With Pressure Clamp Terminal Block for RTD (Model: NFTR8S-00) |
|
/R8S10 |
With Pressure Clamp Terminal Block for RTD + Surge Absorber (Model: NFTR8S-10) |
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