وصف
The Schneider Electric 140AVI03000C is an 8-channel analog input module designed for the Modicon Quantum automation series. This unit is specifically engineered with conformal coating to ensure operational integrity in chemically harsh or corrosive industrial environments, including oil and gas facilities, mining operations, and heavy manufacturing plants. It provides high-precision signal digitization while protecting the backplane from field-side electrical interference.
Features
- 8-channel analog input capacity with 12-bit resolution.
- Conformal coated PCB for enhanced resistance to moisture, salt spray, and corrosive gases.
- Galvanic isolation between field-side inputs and the backplane logic bus to prevent common-mode noise.
- Support for multiple voltage and current ranges, including +/- 10V and 4-20mA.
- Integrated hardware filtering to minimize signal noise and prevent false register triggers.
- Open-circuit loop detection for current-based inputs.
Applications
This module is intended for use in high-performance process control applications where signal stability is critical. Typical deployments include monitoring pressure, flow, and temperature transmitters in petrochemical refining, thermal power generation, and water treatment infrastructure where environmental conditions may degrade standard electronic components.
Technical Specifications
| Model |
140AVI03000C |
| Brand |
Schneider Electric |
| Channels |
8 |
| Resolution |
12-bit |
| Input Ranges |
1-5V, 0-5V, 0-10V, +/-5V, +/-10V, 4-20mA |
| Voltage Impedance |
1 MOhm |
| Current Impedance |
250 Ohm |
| Backplane Power |
320 mA at 5 VDC |
| Operating Temperature |
0 to 60 deg C |
| Isolation |
1000 VAC channel-to-bus |
Installation Guidelines
- Ensure the Quantum backplane is powered down before inserting or removing the module to prevent electrical damage.
- Verify that the module is properly seated and the locking clips are engaged in the rack.
- Use shielded twisted-pair cabling for all analog signal runs to maintain noise immunity.
- Ground the cable shields at the entry point to the cabinet or at the signal source, following standard plant grounding practices for analog loops.
- Maintain proper ventilation in the cabinet to ensure the ambient temperature remains within the 0 to 60 deg C range.
FAQ
Does the 140AVI03000C require external power? No, this module draws its operating power directly from the Quantum chassis backplane bus.
What does the 'C' suffix signify in the model number? The 'C' indicates that the module has been manufactured with a conformal coating, making it suitable for environments with high humidity or corrosive airborne contaminants.
