Overview
The Yokogawa NFAI135 is a pulse input module designed for accurate signal acquisition in industrial automation systems. It is used to receive and process high-speed pulse signals from field devices such as flow meters, counters, and sensors, ensuring stable and precise data conversion for control and monitoring applications.
General Information
Part Number: NFAI135
Manufacturer: Yokogawa
Brand / Country of Origin: Yokogawa / Japan
Series: NF
Type: Pulse Input Module
Application: High-speed pulse signal acquisition and processing
Mounting: Rack or system chassis installation
Technology: Digital pulse input processing with signal conditioning and isolation
Power Specifications
Supply Voltage: 24 V DC
Power Consumption: ≤ 5 W
Input Type: Pulse signal (frequency/counter inputs)
Protection: Electrical isolation and surge protection
Status Indicators: LED indicators for channel and module status
Communication & Interface
System Interface: Yokogawa control system backplane
Signal Processing: High-speed pulse counting and frequency measurement
Diagnostics: Input signal monitoring and module fault detection
Configuration: Software-configurable via system engineering tools
Operator Interface: LED status indicators for operation monitoring
Environmental
Operating Temperature: 0°C to +55°C
Storage Temperature: -25°C to +70°C
Humidity: 5% to 95% RH, non-condensing
Vibration Resistance: Industrial control environment rated
Protection Rating: IP20 (installed within control cabinet)
Dimensions & Weight
Dimensions (L × W × H): 130 × 107.5 × 32.8 mm
Weight: 0.3 kg
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