Product Description
š¹ General Information
|
Manufacturer |
Yokogawa |
|---|---|
|
Model/Part Number |
NFAR181-S50/R8S10 |
|
Description |
RTD Input Module (12-channel, Isolated Channels) |
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Ā
š¹ Description Summary
TheĀ NFAR181-S50Ā module is a 12-channelĀ RTD input module, supportingĀ Pt100Ā andĀ JPt100Ā RTD sensors in a three-wire configuration. Each channel is isolated from the system and from other channels. This model version includes theĀ /R8S10Ā option, which equips it with aĀ pressure clamp terminal block featuring a surge absorber, improving protection in industrial environments.
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Ā
š¹ Technical Specifications
|
Item |
Specification |
|---|---|
|
Model |
NFAR181 |
|
Input Channels |
12 isolated input channels |
|
Input Signal Type |
RTD (Pt100, JPt100; three-wire type) |
|
Standards Supported |
JIS C 1604:1989, IEC 60751:1986 |
|
Allowable Input Voltage |
Ā±5 V |
|
Withstanding Voltage |
1500 V AC for 1 minute (input-to-system) |
|
Input Resistance |
ā„2 MĪ© (Power ON or OFF) |
|
Measurement Current |
1 mA |
|
Accuracy (RTD Inputs) |
Ā±0.03% of full scale (for 0 to 400 Ī©) |
|
Allowable Wiring Resistance |
ā¤40 Ī© per wire |
|
Temperature Drift |
Max. Ā±30 ppm/Ā°C |
|
Data Refresh Cycle |
1 second |
|
Burn-Out Detection |
Selectable (UP/DOWN), Detection Time: 60 seconds |
|
Maximum Current Consumption |
450 mA (5 V DC) |
|
Weight |
0.2 kg |
|
External Connections |
Pressure clamp terminal block (surge absorber included via option /R8S10) |
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Ā
š¹ Model and Suffix Code Breakdown
|
Model |
NFAR181Ā ā RTD Input Module (12-channel, Isolated) |
|---|---|
|
-S |
Standard type |
|
5 |
Without explosion protection |
|
0 |
Basic type configuration |
|
/R8S10 |
Pressure Clamp Terminal Block with Surge Absorber [NFTR8S-10] |
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