Why Accurate Analog Input Matters
Unstable temperature readings and noisy sensor signals can stall a production line. The 140ARI03010C from Schneider Electric solves this with eight differential analog inputs and 13-bit resolution, giving you precise data acquisition for demanding automation tasks. As part of the Modicon Quantum platform, this input module handles temperature probe signals directly, so you get reliable measurements without extra signal conditioning hardware.
What the 140ARI03010C Delivers
This standard-format module packs eight differential analog inputs into a compact footprint. The differential input design rejects common-mode noise, which keeps readings stable even in electrically noisy plant environments. With 13-bit resolution, the module resolves fine signal changes that lower-resolution cards would miss.
Key performance details include:
- Input impedance: >= 10 MOhm, minimizing signal loading
- Absolute accuracy error: 0.1 °C
- Linearity error: +/- 0.01 % full scale and +/- 0.5 °C
- Power dissipation: just 1 W
- Bus current requirement: 200 mA
- Update time: 1200 ms for 3-wire, 640 ms for 2-wire/4-wire configurations
The module supports a wide range of temperature probes, including Pt 100, Pt 200, Pt 500, and Pt 1000 types across multiple temperature ranges, plus Ni 100, Ni 200, Ni 500, and Ni 1000 variants. This flexibility means one module can serve diverse sensor setups across your facility.
Built for Tough Industrial Environments
The 140ARI03010C operates from 32 to 140 °F (0 to 60 °C) and tolerates storage temperatures from -40 to 185 °F (-40 to 85 °C). It functions at altitudes up to 16404.2 ft (5000 m) and handles 95% relative humidity without condensation. Conformal coating (Humiseal 1A33) adds protection against moisture and contaminants.
Isolation ratings protect your system: 1780 V AC between channels and bus, 2500 V DC, and 300 Vrms AC between channels. The module also resists electrostatic discharge at 4 kV contact and 8 kV air, and electromagnetic fields at 9.1 V/m (10 V/m) from 80 to 1000 MHz.
Where the 140ARI03010C Fits
Temperature monitoring in oil and gas processing benefits directly from the module’s Pt and Ni probe support. In food and beverage production, the 13-bit resolution captures subtle temperature shifts that affect product quality. For water treatment facilities, the differential inputs reject pump motor noise while tracking process temperatures accurately.
Integration and Status Monitoring
The module requires 9 input words for addressing and fits standard Quantum racks. Local signaling keeps you informed: a green LED shows bus communication, a red LED flags external faults, and eight green plus eight red LEDs indicate per-channel status and faults. The module detects broken wire and over-tracking scale faults, helping you diagnose issues quickly.
Please verify current lifecycle status and availability with Oil AutoTech before ordering.
Practical Selection Advice
Before purchasing, confirm your sensor types match the supported Pt or Ni probe ranges. Check that your Quantum rack has space for a standard-format module and that your power budget accommodates the 200 mA bus current draw. The 140ARI03010C meets UL 508 and CSA C22.2 No 142 standards, with FM Class 1 Division 2 and cUL certifications.
Oil AutoTech provides hands-on technical selection help and fast dispatch, worldwide. Contact Oil AutoTech today for pricing and availability.
