PXU21A20

Red Lion PXU21A20 available at EU Automation. Get in touch today for a quick price.

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The Red Lion PXU21A20 is a versatile and reliable temperature and process controller designed to meet the demands of various industrial applications. This controller is compatible with a wide range of input signals, including thermocouples, RTDs, and process inputs such as 0-5/10 VDC, 0/4-20 mA DC, and 0-50 mV DC. It features a dual 4-digit display that allows users to simultaneously monitor the process and setpoint values, ensuring precise control and easy operation.

The PXU21A20 offers flexible control options, including PID, On/Off, and Manual modes, with the ability to provide two control outputs that can be configured for either heating or cooling applications. The controller's auto-tune function simplifies the setup process by automatically calculating optimal PID parameters, while manual tuning is available for fine-tuning specific applications.

Equipped with dual alarms, the PXU21A20 can be configured for absolute high or low acting, deviation, and band alarms, providing comprehensive monitoring and safety features. The controller's robust construction, featuring a high-impact plastic case and clear display window, ensures durability and reliability in demanding industrial environments.

With its user-friendly interface, programmable function buttons, and optional remote setpoint input, the Red Lion PXU21A20 is an ideal choice for industries requiring precise temperature and process control. Its compliance with IP65 standards further enhances its suitability for a wide range of applications.
Specification Description
Part Number PXU21A20
Manufacturer Red Lion
Category
Family
Display LCD negative image transmissive with backlighting. Top (process) display with orange backlighting, bottom (parameter) display with green backlighting.
Power Supply 100 to 240 VAC -20/+8 %, 50/60 Hz, 5 VA
Input Types Thermocouple, RTD, Voltage, Current
Input Range Thermocouple: Types T, E, J, K, R, S, B, N, L, U, TXK; RTD: 2 or 3 wire; Process Inputs: 0-5 VDC, 0-10 VDC, 0-20 mA, 4-20 mA, 0-50 mV
Output Types Relay, Logic/SSR
Control Modes PID, On/Off
Communication Modbus RTU, Modbus ASCII
Dimensions 1/16 DIN
Keypad Mylar overlay with 4 program/selection keys and 2 user programmable function keys
Setpoint Profiles 16 profiles, each with up to 16 segments
Sample Period 100 msec (10 Hz rate)
Accuracy ± (0.3% of span, +1 °C) at 25 °C ambient after 20 minute warm up
Application The Red Lion PXU21A20 is designed for precise temperature and process control in industrial environments. It is suitable for applications requiring reliable and accurate control of temperature and process variables.

What are the main features of this Red Lion controller?

The Red Lion PXU21A20 controller features a dual-line LCD display with backlighting, multiple input types including thermocouple and RTD, and supports various control outputs such as relay and SSR. It also offers advanced alarm functions and serial communication capabilities.

What input types are compatible with this controller?

The controller is compatible with a variety of input types including thermocouples (types T, E, J, K, R, S, B, N, L, U, and TXK), RTDs, and process inputs like 0-5 VDC, 0-10 VDC, 0-20 mA, and 4-20 mA.

How does the auto-tune feature work on this controller?

The auto-tune feature of the PXU21A20 controller automatically adjusts the PID settings to optimize control performance. This feature helps in achieving precise control by minimizing overshoot and improving response time.

Can this controller be used for remote setpoint control?

Yes, the PXU21A20 supports remote setpoint control, allowing it to receive setpoint values from an external source, which can be useful in integrated systems.

What are the display capabilities of this controller?

The controller features a dual-line LCD display with orange backlighting for the process value and green backlighting for parameter values. It provides clear visibility of status indicators such as control outputs, alarms, and mode settings.

What kind of alarm functions does this controller offer?

The PXU21A20 offers multiple alarm functions including absolute high/low, deviation high/low, and band alarms. These alarms can be configured to trigger based on specific process conditions, providing enhanced monitoring and safety.

Is the PXU21A20 suitable for industrial environments?

Yes, the PXU21A20 is designed for industrial environments, featuring robust construction and compliance with electromagnetic compatibility guidelines to ensure reliable operation in challenging conditions.

What are the power requirements for this controller?

The PXU21A20 operates on a line voltage of 100 to 240 VAC with a frequency of 50/60 Hz, and it consumes approximately 5 VA of power.

  • Temperature control in industrial processes
  • Monitoring and regulating heating systems
  • Integration into automated manufacturing systems
  • Use in chemical processing for maintaining optimal conditions
  • Application in food and beverage industry for precise temperature management
  • Control of environmental conditions in HVAC systems
  • Utilization in laboratory equipment for accurate temperature settings
  • Implementation in plastic molding processes for temperature consistency
  • Support in metal treatment processes requiring specific temperature profiles
  • Use in pharmaceutical production for controlled temperature environments

This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.

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