Product Overview
The Schneider 140ACI03000C is a differential analog input module from the Modicon Quantum automation platform. It provides eight high-precision inputs with 12-bit resolution, supporting both 1...5 V voltage and 4...20 mA current signals. Designed for demanding industrial environments, this module delivers accurate measurements with a linearity error of only ±0.04% and robust isolation.
Technical Specifications
- Number of Inputs: 8 (Differential)
- Analog Input Resolution: 12 bits
- Linear Measuring Range: 1...5 V and 4...20 mA
- Maximum Input Current: 25 mA
- Maximum Input Voltage: 50 VDC
- Input Impedance: >20 MΩ (voltage), 250 Ω (current)
- Linearity Error: ±0.04%
- Accuracy Drift: ±0.0025% of full scale/°C
- Update Time: 5 ms
- Power Consumption: 2 W
- Isolation Between Channels: 30 V DC
- Isolation Between Channels and Bus: 1000 V DC (3000 V DC for 60 s)
- Common Mode Rejection: > -72 dB at 60 Hz
- Net Weight: 0.7 lb (0.3 kg)
Industry Applications
The Schneider 140ACI03000C excels in process control, factory automation, and machine monitoring. Its differential inputs and high common mode rejection make it ideal for noisy environments, ensuring accurate sensor readings. Use it for temperature, pressure, flow, and level measurement in chemical plants, water treatment, and manufacturing lines.
Installation & Setup
Mount the 140ACI03000C in a standard Modicon Quantum rack. Connect differential signals to the screw terminals, observing polarity and using shielded twisted-pair cables for best noise immunity. Configure the addressing requirement of 9 input words in your control software. The module automatically detects broken wires on 4...20 mA loops and undervoltage on 1...5 V ranges.
Maintenance & Reliability
This module features conformal coating (Humiseal 1A33) for protection against moisture and contaminants. It operates reliably in temperatures from 32 to 140 °F (0 to 60 °C) and up to 95% relative humidity. With a 5 ms update time and LED indicators for communication and channel status, routine checks are straightforward. Minimal maintenance is required—periodically inspect connections and cleanliness.
Compatibility & Integration
The Schneider 140ACI03000C integrates seamlessly with Modicon Quantum controllers and I/O systems. It supports the standard Quantum backplane bus and requires no special adapters. The module is certified to UL 508, CSA C22.2 No 142, and FM Class 1 Division 2, making it suitable for hazardous locations.
Buying Guide
Before purchasing, verify that your system has an available slot in the Quantum rack and that the addressing requirement of 9 input words is compatible with your controller's memory map. PLC Source PRO offers genuine 140ACI03000C modules with fast shipping and expert support. Contact us for bulk pricing or technical assistance.