Hersteller: Yokogawa
Produkt-Nr.: NFAI135-S51 S2
Herkunftsland:Japan
Produkttyp: Analog Input Module
Strichcode: 8537101190
Zahlung: T/T, Western Union
Gewicht: 300g
Abmessungen: 3.2cm x 10.6cm x 13cm
Versandhafen: Xiamen
Garantie: 12 Monate
The Yokogawa NFAI135-S51 S2 is an isolated channel analog input module engineered for the STARDOM FCN autonomous controller platform. It features 8 dedicated input channels configured to process 4 to 20 mA DC current signals from 2-wire and 4-wire transmitters. Channel-to-channel isolation delivers robust electrical protection and high signal integrity, effectively mitigating ground loops and field noise in complex industrial processing zones. Equipped with an ISA Standard G3 environmental option, the module is built to withstand corrosive atmosphere variables, making it optimal for long-term reliability in critical process automation frameworks.
Channel-to-Channel Isolation: Employs rigorous electrical isolation between the inputs and the system, as well as between individual channels.
HART Communication Capability: Supports digital field communication overlaid onto standard 4 to 20 mA hardware loops.
ISA Standard G3 Option: Configured with professional environmental protection to counter atmospheric corrosion.
Integrated Overcurrent Protection: Protects sensitive internal circuits against unexpected electrical surges from field line paths.
Oil and gas exploration and refining facilities
Petrochemical and chemical process plants
Municipal water and wastewater management systems
Power generation system monitoring
Distributed industrial data acquisition networks
| Model | Suffix Codes | Description |
| NFAI135 | Analog Input Module (4 to 20mA, 8-channel, Isolated channels) | |
| -S | Standard type | |
| 5 | With no explosion protection | |
| 1 | With ISA Standard G3 option |
| Parameter | Specifications |
| Manufacturer | Yokogawa |
| Model | NFAI135 |
| Number of Input Channels | 8-channel input, isolated channels |
| Input Signal | 4 to 20 mA |
| Allowable Input Current | 25 mA |
| Overcurrent Protection | Provided |
| Withstanding Voltage |
Between input/output and system: 500 V AC for 1 minute Between channels: 500 V AC for 1 minute |
| Input Resistance (Power ON) | 250 ohm |
| Input Resistance (Power OFF) | 500 ohm or more |
| Accuracy | +/-0.1% of full scale |
| Data Refresh Cycle | 10 ms |
| Input Step Response Time | 100 ms |
| Transmitter Power Supply | 20.2 to 29.3 V |
| Temperature Drift | Max. +/-0.01%/degC |
| Maximum Current Consumption | 360 mA (5 V DC), 450 mA (24 V DC) |
| Weight | 0.3 kg |
| External Connection | Pressure clamp terminal, MIL connector cable |
| HART Communication | Available |
Ensure a stable 24 V DC source is linked to the analog field power supply terminal of the power supply module.
Form physical terminations using the corresponding pressure clamp terminal block or a tailored MIL connector cable system.
Note that when using a MIL connector cable like the KMS40, the withstanding voltage limit between input and system drops to 500 V AC for 1 minute.
Avoid coupling Zener barriers to this hardware; specify an isolation barrier for intrinsically safe installation demands.
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| Country of origin |
Japan
|
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