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- Schneider Electric
- 140SAI94000S
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- France
- 130 × 35 × 150 mm
- 0.88kg
- Xiamen, China
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Technical Specification and Product Overview – Schneider 140SAI94000S
1. Product Identification
Model: 140SAI94000S
Product Type: Isolated Analogue Input Module
Category: Process I/O Module for PLC/Distributed Control Systems
2. Product Introduction
The 140SAI94000S is an isolated analogue input module designed for accurate measurement and transmission of industrial analogue signals. It is engineered to interface directly with field instrumentation such as sensors and transducers that measure process variables including temperature, pressure, flow, and level. This module converts real-world analogue signals into digital data that can be processed by a programmable logic controller (PLC) or a distributed control system (DCS).
With galvanic isolation on inputs, the module provides enhanced protection against electrical noise, ground loops, and signal interference. This ensures reliable data acquisition in environments where multiple electrical devices operate simultaneously. The isolated design, robust construction, and precise signal handling make the 140SAI94000S ideal for mission-critical process control applications.
The module supports a range of input signal types and incorporates high-resolution conversion for precise measurement. It is suitable for use in industrial automation racks and supports long-term uninterrupted operation with minimal maintenance.
3. Brand and Series Information
Brand: Schneider
Renowned for industrial automation components designed to deliver durability, performance, and compatibility across modular control systems.
Series: Process & Control I/O Series
This series encompasses analogue and digital input/output modules engineered to interface field devices with control systems. It includes modules with varying I/O configurations to address diverse application needs.
4. Product Specifications
| Parameter | Details |
|---|---|
| Model | 140SAI94000S |
| Module Type | Isolated Analogue Input |
| Input Channels | 8 Analogue Inputs |
| Input Signal Range | ±10 V, 0–20 mA, 4–20 mA |
| Input Resolution | 16-bit ADC |
| Isolation | Channel-to-backplane Galvanic Isolation |
| Response Time | 5 ms per channel |
| Operating Temperature | 0 °C to +60 °C |
| Storage Temperature | -40 °C to +85 °C |
| Humidity Range | 5%–95% non-condensing |
| Mounting Type | Rack-mounted |
| Dimensions (H × W × D) | 130 × 35 × 150 mm |
| Weight (kg) | 0.88 kg |
| Connection Type | Screw Terminal Block |
| Power Supply | System Backplane Power |
| Environmental Rating | Industrial Grade |
5. Product Applications
The 140SAI94000S module is suitable for a wide range of industrial automation applications where high-fidelity analogue signal acquisition is required:
Process Control Systems: Interfaces with sensors measuring variables like temperature, pressure, and flow in process industries including chemical, oil & gas, and power plants.
Machine Automation: Used in production machines to monitor analogue signals from speed sensors, proximity detectors, and position transducers for control logic.
Batch Manufacturing: Captures real-time data from batch equipment to ensure accurate transitions between process steps.
Water and Wastewater Treatment: Monitors water quality parameters, pump performance, and chemical dosing through reliable analogue inputs.
Condition Monitoring: Provides high-resolution data acquisition for systems that monitor vibration, strain, and temperature in critical assets.
6. Product Advantages
The 140SAI94000S delivers several technical and practical advantages in industrial systems:
Isolated Inputs: Galvanic isolation for input channels minimizes noise and protects the control system from electrical faults.
High Precision: 16-bit resolution ensures accurate measurement of low-level signals without significant quantization error.
Robust Design: Engineered for industrial environments with temperature and humidity tolerances that support extended operation.
Easy Integration: Rack-mounted design with backplane power supply simplifies wiring and installation.
Versatile Input Support: Accepts multiple industrial signal ranges, facilitating broad applicability.
Maintenance-Friendly: Modular design allows easy replacement and troubleshooting during system upgrades.
7. Related or Same Series Models
| Model | Module Type | I/O Configuration | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|
| 140SAI94000S | Analogue Input | 8 AI (Isolated) | 130 × 35 × 150 | 0.88 |
| 140SAI93000S | Analogue Input | 16 AI | 130 × 60 × 150 | 1.10 |
| 140SAI92000S | Analogue Input | 8 AI with Filter | 130 × 35 × 150 | 0.90 |
| 140SAO94000S | Analogue Output | 8 AO (Isolated) | 130 × 35 × 150 | 0.92 |
| 140SAD94000S | Digital I/O | 16 DI/16 DO | 130 × 70 × 150 | 1.25 |
| 140SIG91000S | Signal Converter | Universal Signal I/O | 130 × 45 × 150 | 0.98 |
8. Popular Models – Same Brand
| Model | Product Type | Primary Function | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|
| 140CPU65150 | PLC Processor | Central Logic Control | 130 × 80 × 170 | 1.20 |
| 140NRP95400 | Remote Processor | Distributed I/O Control | 130 × 80 × 170 | 1.15 |
| 140NWM050000 | Ethernet Network Module | Network Interface | 130 × 35 × 150 | 0.72 |
| 140DDI35300 | Digital Input Module | Discrete Inputs | 130 × 35 × 150 | 0.57 |
| 140ACI04000 | Analogue Input Module | Signal Acquisition | 130 × 35 × 150 | 0.58 |
9. Frequently Asked Questions (FAQ)
Q1: What is the main purpose of the 140SAI94000S?
A1: It is designed to acquire multiple isolated analogue signals and convert them to digital data for processing by a controller.
Q2: How many input channels does this module support?
A2: It supports 8 isolated analogue input channels.
Q3: What types of signals can this module handle?
A3: It accepts ±10 V, 0–20 mA, and 4–20 mA signal ranges.
Q4: Why is input isolation important?
A4: Isolation minimizes noise interference, prevents ground loops, and protects the system from electrical faults.
Q5: What is the resolution of the analogue inputs?
A5: Inputs are digitized at 16-bit resolution for precise measurement.
Q6: What are the dimensions and weight of the module?
A6: The module measures 130 × 35 × 150 mm and weighs approximately 0.88 kg.
Q7: What type of mounting is required?
A7: It is rack-mounted and powered via the system backplane.
Q8: Can it be used in harsh industrial environments?
A8: Yes, it is designed for extended operation under typical industrial temperature and humidity conditions.
Q9: Is this module suitable for process control applications?
A9: Yes, it is ideal for process control systems requiring accurate analogue signal acquisition.
Q10: What maintenance considerations should be made?
A10: The module’s modular design allows easy replacement, but routine inspection for wiring integrity and environmental conditions is recommended.