800123-T RELIANCE

Reliance 800123-T analog module

Brand：RELIANCE Model number：800123-T

Country of origin: United States Product weight：0.55kg

HS code：9032899099

Product Details：

Product Dimensions：

A Reliance analog module is an electronic circuit board that plugs into a PLC or control rack's backplane. It processes analog signals, which are continuous values that vary over a range. There are two primary types:

Analog Input Modules: These modules take a continuous analog signal from a field device (like a thermocouple, pressure transmitter, or flow meter) and convert it into a digital value that the controller's central processing unit can understand and process.
Analog Output Modules: These modules do the reverse. They receive a digital value from the controller and convert it into a continuous analog signal (either voltage or current) to drive a field device, such as a variable frequency drive (VFD), a proportional valve, or an analog gauge.

Key features of these modules often include high-resolution conversion (e.g., 12-bit or 16-bit), galvanic isolation to protect the sensitive control electronics from electrical noise and ground loops, and built-in filtering to ensure a clean, accurate signal.

Product Parameters

Specific parameters vary by model, but here are some common specifications:

Signal Ranges: Analog modules are designed to handle specific signal ranges, typically:

Voltage: ±1V, ±5V, ±10V, 0-10V.
Current: 4-20mA, 0-20mA. The 4-20mA standard is very popular in industry because a 4mA signal indicates a live circuit (a non-zero value), making it easy to detect a broken wire.

Number of Channels: The number of analog inputs or outputs per module (e.g., 2, 4, 8 channels).
Resolution: This defines the granularity of the signal conversion. A 12-bit module can resolve 4,096 distinct values, while a 16-bit module offers much higher precision with 65,536 values.
Accuracy: Typically expressed as a percentage of the full-scale range (e.g., ±1%).
Conversion Rate: How quickly the module can sample and convert a signal. This is critical for fast-changing processes.
Isolation: The level of electrical isolation between the logic common and the field wiring (e.g., 2500 volts).
Power Dissipation: The amount of power the module consumes during operation.
Physical Dimensions: The size and weight of the module, which must fit into the control rack.

Product Advantages

Precision and Accuracy: Analog modules provide a high degree of accuracy and resolution, allowing for fine-tuned control and monitoring of industrial processes.
Robustness: Built to withstand harsh industrial environments, these modules are resistant to temperature fluctuations, humidity, and electrical noise.
Versatility: They can interface with a wide range of analog sensors and actuators, making them adaptable to many different applications.
Electrical Isolation: The isolation feature protects the expensive, sensitive controller electronics from voltage spikes and ground loops originating in the field.
Simplified Troubleshooting: Built-in diagnostics and status LEDs can help technicians quickly identify wiring issues or module failures.
Scalability: The modular design makes it easy to add more analog points to a control system as a process expands, without having to replace the entire controller.

Important Considerations

Signal Range Compatibility: It's crucial to select a module whose signal range matches that of your field devices. Using a 0-10V module with a 4-20mA sensor will not work without an external signal converter.
Noise and Filtering: Analog signals are susceptible to electrical noise. Proper shielding and grounding of signal wiring are essential. Many modules include built-in filters that can be configured to minimize interference.
Obsolescence: As Reliance Electric is now a legacy brand, finding new modules can be difficult. Customers may need to rely on surplus markets or third-party suppliers for spare parts and replacements.
Software Configuration: The module's performance, including resolution, filtering, and conversion rates, is often configurable via the controller's programming software. Proper configuration is key to a stable system.
Wiring Practices: Adhere to the manufacturer's wiring diagrams and best practices to ensure signal integrity and safety.

Product Applications

Reliance analog modules are essential for a variety of industrial applications that require precise measurement and control of continuous variables:

Process Control:

Temperature Control: Reading signals from thermocouples and RTDs to regulate a process temperature.
Fluid Control: Measuring flow rates, levels, and pressures to control pumps and valves in chemical plants, refineries, and water treatment facilities.

Machine Automation:

Speed Control: Providing analog signals to VFDs to precisely control the speed of motors in conveyors, fans, and pumps.
Position Control: Driving actuators to control the position of a robotic arm or a damper in an HVAC system.

Energy Management:

Monitoring: Reading power, voltage, and current values from energy meters.

Test and Measurement:

Data Acquisition: Logging sensor data for analysis and quality control in a variety of manufacturing and R&D settings.

8000821R RELIANCE

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