Overview
The Omron K3NX-VA1A is an advanced intelligent signal processor designed for precise AC voltage measurement and monitoring in industrial automation systems. This process meter operates on 100-240VAC, 50/60Hz at 15VA power consumption. The basic model is used for display-only applications without external output boards, making it a cost-effective solution for process visualization and data monitoring.
Key Features
- AC voltage input measurement capability
- Universal supply voltage: 100-240VAC, 50/60Hz
- Low power consumption: 15VA
- Advanced signal processing with multiple operating modes
- Front-panel keys for operation and parameter adjustment
- Supports connection to optional output boards (relay contact, transistor, or combination)
- Field calibration and user-customizable scaling options
- RUN, Setting, Protect, and Maintenance operating modes
Technical Specifications
- Input Type: AC Voltage
- Supply Voltage: 100-240VAC
- Frequency: 50/60Hz
- Power Consumption: 15VA
- Series: K3NX Advanced Intelligent Signal Processor
- Base Unit Configuration: Display model (no integrated output board)
- Display: Digital readout with maximum/minimum value recording
- Operating Modes: RUN (normal operation), Setting, Protect, Maintenance
- Data Output Interval: 64 ms during continuous data request
- Calibration: Factory pre-calibrated; field calibration supported
Typical Applications
- Industrial AC voltage monitoring and metering
- Process control and visualization systems
- Machine condition monitoring and diagnostics
- Panel-mount meter for production equipment
- Energy consumption tracking and analysis
- Power quality assessment in manufacturing facilities
- Integration with external relay or transistor output boards for automated control
Compatibility & Replacements
Compatible With
- Relay contact output boards: K31-C1, K31-C2, K31-C5
- Transistor output boards: K31-T1, K31-T2
- LED and front-panel control configurations: K31-FLK1
- Optional BCD output and communications interfaces
- External input signals (HOLD, RESET) for process control
Replaces / Drop-In Replacement For
- Verify compatibility with your specific system integrator or controls engineer before ordering.
Works With
- K3NX series output boards and modules
- Omron automation systems and control platforms
- External BCD output devices and data logging systems
- Communications protocols via optional expansion boards






