Product Short Description
Product Brief: Standard voltage-type analog input module for Ovation DCS, collects standard DC voltage signals from field transmitters and sensors for process parameter monitoring.
Technical Specifications:
- Input Channel Quantity: 8 isolated voltage input channels
Description
- Input Signal Range: 0 ~ 5 VDC, 1 ~ 5 VDC, 0 ~ 10 VDC configurable
- Input Impedance: ≥ 1 MΩ per channel
- Operating Temperature Range: 0 °C to +60 °C
- Storage Temperature Range: -40 °C to +85 °C
- Relative Humidity: 5% ~ 95% non-condensing
Functional Features:
- Each channel electrical isolation
- Programmable signal range
- Low-pass filter for high-frequency interference suppression
- Input overvoltage protection
- Channel fault diagnosis and alarm
- Hot-swappable design
Performance Parameters:
- Measurement Accuracy: ±0.08% full scale
- Temperature Drift: ≤ 30 ppm/°C
- Isolation Voltage: 1500 VAC channel to backplane
- Filter Time Constant: 10 ms ~ 1000 ms adjustable
- Data Refresh Rate: 100 Hz
Material Composition:
- Outer Shell: Flame-retardant ABS plastic
- Main PCB: High-precision low-drift FR-4 board
- Sampling Components: Metal film precision resistors, low-noise operational amplifiers
- Terminal Parts: Anti-corrosion tin-plated copper terminals
Structural Characteristics:
- 3U standard rack-mount dimension
- Front panel with LED indicators for power, run and fault
- Rear integrated backplane bus connector
- Built-in circuit shielding structure
Working Principle:
Field voltage analog signals enter the module, pass overvoltage protection and low-pass filter circuits, then are converted into digital signals by high-precision A/D converter. The digital data is uploaded to Ovation DCS controller for real-time monitoring, display and logic calculation.
Advantages & Highlights:
- Ultra-high input impedance has no impact on field voltage signal source
- Multiple signal ranges compatible with mainstream voltage transmitters
- Excellent low-drift performance ensures long-term measurement accuracy
- Flexible filter parameter setting adapts to different interference environments
Applicable Industries: Petrochemical, chemical industry, light industry, environmental protection, power auxiliary system
Model Series: Emerson Ovation Analog Input Module Series
Installation Requirements:
- Mount on Ovation standard cabinet rack vertically
- Analog signal uses shielded twisted-pair cable
- Single-point grounding for cable shield layer
- Maintain good ventilation for heat dissipation
Usage Notes:
- Prohibit input voltage exceeding maximum rated range
- Avoid strong electromagnetic field around module
- Set appropriate filter parameters according to field interference
- Check terminal connection tightness periodically
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