140ATI03000 Modicon Quantum Thermocouple Analog Input Module

140ATI03000 Architectural Overview

The 140ATI03000 is a high-precision 8-channel analogue input module designed specifically for the legacy Modicon Quantum automation platform. This high-density instrument card provides direct interfacing to diverse industrial thermocouples without requiring external signal conditioning transmitters. The hardware features advanced onboard signal filtering. It utilizes a combination of a low-pass single-pole filter at 20 Hz and a deep notch filter targeting 50/60 Hz frequencies. This architecture ensures high noise rejection in electrically volatile installations. It provides dependable thermal process variables directly to the central processing unit.

Technical Specifications

• Brand: Schneider Electric
• Model Number: 140ATI03000
• Product Series: Modicon Quantum Platform
• Module Type: Analogue Thermocouple Input Module
• Total Analogue Inputs: 8 Channels
• Addressing Requirement: 10 Input Registers / Words
• Analogue-to-Digital Conversion Resolution: 16 Bits High-Definition
• Supported Thermocouple Types & Range Profiles:
  • Type J: -210 to 760 Degrees Celsius
  • Type E: -270 to 1000 Degrees Celsius
  • Type K: -270 to 1370 Degrees Celsius
  • Type T: -270 to 400 Degrees Celsius
  • Type R: 50 to 1665 Degrees Celsius
  • Type S: 50 to 1665 Degrees Celsius
• Absolute Accuracy Error Ratings:
  • Types E, J, K, T: +/- 2 °C plus + 0.1 % of real-time reading
  • Types R, S: +/- 4 °C plus + 0.1 % of real-time reading
• Linearity Deviation Error: Fully calibrated scaling options within 1 °C, 0.1 °C, 1 F, or 0.1 F parameters
• Thermal Accuracy Drift: 0.15 µV/°C plus 0.0015 % of reading per Degree Celsius maximum shift
• Common Mode Rejection Ratio (CMRR): Greater than -120 dB at 50/60 Hz noise intervals
• Channel-to-Bus Isolation: 1780 V AC for 60 Seconds / 2500 V DC for 60 Seconds
• Inter-Channel Operational Isolation: 300 V DC / 220 V AC continuous rating
• Data Conversion Channel Update Time: 1000 Milliseconds for all active channels
• Cold Junction Compensation (CJC): Internal automatic tracking from 0 to 60 Degrees Celsius
• Backplane Power Bus Current Demand: 280 mA Maximum
• Total Onboard Power Dissipation: 1.5 W Net Thermal Output
• Physical Module Format: Standard Quantum Slot Profile
• Net Weight: 0.3 kg (0.7 lbs)

Environmental Operating & Structural Resiliency

• Operational Ambient Temperature: 0 to 60 Degrees Celsius (32 to 140 Degrees Fahrenheit)
• Storage Ambient Temperature: -40 to 85 Degrees Celsius (-40 to 185 Degrees Fahrenheit)
• Maximum Operational Altitude: Less than or equal to 5000 Meters (16,404 Feet)
• Relative Humidity Limits: 95 % Continuous Non-condensing Atmosphere
• Electrostatic Discharge (ESD) Resiliency: 4 kV Contact Discharge / 8 kV Air Discharge (IEC 801-2)
• Electromagnetic Field Susceptibility: 10 V/m Field Immunity from 80 to 1000 MHz (IEC 801-3)

System Integration & Equipment Suitability

• Automation Processor Families: Modicon Quantum CPU controllers (140CPU43412A, 140CPU65150, 140CPU67160)
• Distributed Architecture Nodes: Modicon Quantum RIO drops (140CRA93100) and DIO network sub-stations
• Compatible Field Elements: Ungrounded or isolated industrial-grade thermocouple probes
• Programming Software Integration: Configured through Concept, ProWORX, Unity Pro, or EcoStruxure Control Expert

Application Scenarios

• Multi-zone industrial furnace, kiln, and annealing oven temperature profile management.
• Exhaust gas temperature monitoring on large power-generation diesel generator blocks.
• High-temperature chemical reactor vessels and thermal cracking stack observation.
• Plastic injection molding machine barrel heating zone feedback loops.
• Boiler drum thermal tracking and superheated steam pipeline safety protection.

Diagnostic Capabilities

• Hardware Fault Detection Matrix: Onboard logic isolates sensor broken wire events and over-range scale saturation.
• Active LED (Green): Steady illumination indicates healthy backplane bus communication and active logic power.
• External Fault LED (Red): Illuminates to indicate an external field condition requires immediate maintenance.
• Channel Status Indicators (8x Green): Individual channel illumination maps when an input circuit is enabled.
• Channel Fault Indicators (8x Red): Visual flashing or solid light signaling an isolated channel probe error.

Compliance & Certifications

• CE Mark Conformity
• Underwriters Laboratories Industrial Control Safety UL 508
• Canadian Standards Association Component Safety CSA C22.2 No 142
• Hazardous Area Classification Certifications: cUL Approved, FM Class 1 Division 2

Packaging & Logistical Units

• Package Layout: Individual PCE Box
• Fulfillment Parcel Dimensions: 5.000 cm (Height) x 16.500 cm (Width) x 31.500 cm (Length)
• Total Gross Shipping Weight: 425.0 Grams
• Package Inclusions: One Factory-Sealed Module, Hardware Configuration Leaflet
• Asset Warranty Term: 12-Month Comprehensive Defects Guarantee

Shipping Logistics

• Global Logistics Partners: Express priority distribution via FedEx, UPS, and DHL.
• Fulfillment Window: Standard international warehouse dispatch occurs within 24 to 48 hours.

Global PLC Spare HUB's Insight

The 140ATI03000 is a highly respected analog card for thermal monitoring in massive heavy industrial complexes. What sets this module apart is its robust 300 V DC channel-to-channel isolation. This electrical safety margin prevents ground loops from corrupting your thermocouple data. Ground loops are common when multiple probes touch metallic reactor walls. While the 1000 ms update time is too slow for fast motion paths, it is perfectly tuned for slow thermal processes. This longer update window enables deep low-pass filtering that blocks severe electromagnetic noise from surrounding high-voltage motor drives.

Procurement Selection Matrix

• Select this module when your design requires direct, long-distance connection to sensors without extra transmitters.
• Verify that your software memory allocation map has 10 unassigned input words available in the target drop location.
• Ensure your field thermocouple wiring uses the proper specialized extension cables to prevent reading errors at the terminal block.
• Opt for RTD inputs instead if your process needs extreme precision over a narrower temperature span under 400 °C.

Frequently Asked Questions

What causes a channel fault red LED to trip on this card when the thermocouple probe is intact?

This state typically points to a common mode voltage violation or a loose wire connection at the terminal strip. Check the ground reference potential between the probe body and the PLC rack to ensure it stays within the 300 V isolation limits.

Can this module support a mix of Type K and Type T thermocouple sensors simultaneously?

Yes. The card configuration tools allow you to define the sensor type independently for each channel. Ensure that you select the correct temperature scaling profile for each specific loop in your project layout.

How does the 1000 ms update rate impact high-temperature safety shutdown loops?

A 1000 ms update rate means the processor receives a refreshed temperature value once per second. For runaway chemical reactions or critical safety limits, this latency might be too long. You should back up this card with fast-acting, hardwired analog trips for safety-critical circuits.

Why is ungrounded thermocouple construction preferred when wiring directly to this module?

Ungrounded junctions isolate the sensor wires from the outer metal sheath. This design keeps high ground noise currents from entering the 16-bit analog-to-digital converter, helping the module maintain its high absolute accuracy ratings.

Does this card include a removable terminal block accessory inside the factory container?

No. Modicon Quantum field terminal blocks are sold separately as standalone components. You must purchase the matching screw terminal assembly or an extension cable system to wire the field signals.

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