140ARI03000

Modicon Quantum RTD Analog Input Module (8-Ch)

English Datasheet / Manual (Condensed)

1. General Information

• Manufacturer: Schneider Electric

• Model: 140ARI03000

• Series: Modicon Quantum 140 PLC

• Type: 8‑channel isolated RTD temperature input (Pt/Ni sensors)

• Conformal Coating: No (standard; 140ARI03000C = coated)

• Application: Precision temperature monitoring in chemical, water treatment, food & beverage, HVAC, power, pharmaceutical.

• Mounting: Single slot on Quantum backplane

• Weight: ~0.45 kg

2. I/O Configuration

• Inputs: 8 channels (isolated, differential)

• Sensor Types: Pt100, Pt200, Pt500, Pt1000; Ni100, Ni200, Ni500, Ni1000

• Connection: 2‑wire, 3‑wire, 4‑wire RTD

3. Temperature Ranges (Factory/Software Selectable)

• Pt100: −200°C to +850°C

• Pt100: −100°C to +450°C

• Ni100: −60°C to +180°C

• 15 bits (sigma‑delta ADC)

• Effective: 0.1°C / step

• ±0.5°C typical (Pt100)

• ±0.1% FS

4. Electrical Ratings

• Backplane Current: 480 mA @ 5 VDC

• Power Dissipation: ~5.3 W max

• Isolation:

  • Channel‑to‑backplane: 1780 VAC / 2500 VDC, 1 min

  • Channel‑to‑channel: 220 VAC / 300 VDC

• 3/4‑wire RTD: 200 m

• 2‑wire: limited by application accuracy

5. Environmental

• Operating Temp: 0°C to +60°C

• Storage Temp: −40°C to +85°C

• Humidity: 5–95% non‑condensing

• Altitude: Up to 2000 m

• Protection Class: IP20

6. Key Features

1. 8 isolated RTD inputs, high density single slot

2. Supports Pt & Ni RTDs (Pt100/Pt1000, Ni100/Ni1000)

3. 15‑bit sigma‑delta ADC, 0.1°C resolution

4. High accuracy ±0.5°C (Pt100)

5. Strong noise rejection (120 dB CMRR)

6. Open‑circuit detection (sensor break)

7. LED status: Run, Fault, Channel diagnostics

8. Long cable support (200 m) for 3/4‑wire RTD

7. Compatibility

• Rack: Modicon Quantum 140‑series backplane

• Not compatible with X80, M340, or other Schneider PLC lines

8. Ordering

• 140ARI03000: Standard (non‑coated)

• 140ARI03000C: Conformal coated (harsh/corrosive environments)