OMRON E5AC-QX3ASM-800 Digital Temperature Controller 2.1
( Brand: Omron ), ( Manufacturer Part Number: E5AC-QX3ASM-800 ), ( Part Type: Digital Controller ), ( Location: B-98 Wit/26 )
Review OMRON Ver 2.1 Digital Temperature Controller Used See All Pics
The **Omron E5AC-QX3ASM-800 2.1 Digital Temperature Controller** is a high-performance, versatile industrial-grade temperature control solution designed to deliver precise, reliable, and efficient regulation for a wide range of applications. Engineered with Omron s renowned engineering expertise, this compact yet robust controller combines advanced digital technology with intuitive functionality to ensure seamless operation in demanding environments. Featuring a **2.1-inch color touchscreen display**, it provides clear, high-resolution visual feedback, allowing operators to monitor temperature trends, setpoints, and system status with ease. The **800-point memory capacity** enables flexible programming and data logging, making it ideal for applications requiring detailed historical records or multi-stage control sequences. With a **PID control algorithm**, the E5AC-QX3ASM-800 delivers exceptional accuracy and stability, minimizing overshoot and response time for optimal process efficiency. Its **relay output (AC 24V, 2A)** and **analog output (4-20mA)** options provide versatile control interfaces, accommodating a variety of actuators, heaters, or cooling systems. Built to withstand harsh industrial conditions, the controller is housed in a **durable metal enclosure** with an **IP65 rating**, ensuring protection against dust, moisture, and temperature fluctuations. Additionally, its **modbus RTU communication protocol** facilitates seamless integration with PLCs, SCADA systems, or other industrial networks, enabling centralized monitoring and automation. Whether used in **HVAC systems, chemical processing, food and beverage production, or laboratory equipment**, this temperature controller offers a perfect blend of precision, flexibility, and durability, making it an indispensable tool for modern industrial applications.
The **Omron E5AC-QX3ASM-800** is a high-end digital temperature controller designed for industrial and laboratory applications. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.
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### **Pros of the Omron E5AC-QX3ASM-800**
1. **High Precision and Accuracy**
The controller offers excellent temperature measurement and control precision, typically within 0.1 C or better, depending on the sensor used. This makes it ideal for applications requiring tight tolerances, such as pharmaceutical manufacturing, food processing, or chemical reactions.
2. **Advanced Control Algorithms**
It includes PID (Proportional-Integral-Derivative) control with auto-tuning capabilities, allowing for optimized performance without manual adjustments. Some models also support advanced control modes like cascade control, which improves stability in complex systems.
3. **Wide Range of Inputs and Outputs**
The unit supports multiple types of temperature sensors (e.g., Pt100, thermocouples like K, J, T, E, N, S, R, B) and can interface with various actuators (relays, analog outputs, or digital outputs). This flexibility makes it adaptable to different industrial setups.
4. **Modbus Communication**
Built-in Modbus RTU/ASCII communication allows for easy integration with PLCs, SCADA systems, or other industrial devices. This is valuable for remote monitoring and automation in larger systems.
5. **User-Friendly Interface**
The large LCD display with a backlit keypad makes it easy to configure and monitor parameters. The menu-driven interface simplifies setup, even for users with limited technical expertise.
6. **Reliability and Durability**
Omron is a well-established brand known for robust industrial equipment. The E5AC series is designed for harsh environments, with features like overvoltage protection, short-circuit protection, and a wide operating temperature range (-20 C to 60 C).
7. **Multiple Control Functions**
It supports various control modes, including:- **Stepwise control** (for multi-stage processes)
- **Ramp/soak control** (for gradual temperature changes)
- **Event logging and alarms** (for safety and troubleshooting)
This makes it suitable for applications requiring complex temperature profiles.
8. **Compliance with Industry Standards**
The device often meets standards like **ATEX (for explosive environments)** and **IEC 61508 (for safety-related systems)**, depending on the variant. This is crucial for industries like pharmaceuticals, food, and chemicals where compliance is mandatory.
9. **Long-Term Support and Availability**
As an established product line, spare parts and technical support are widely available. Omron has a strong global presence, ensuring continued service even for older models.
10. **Scalability**
The unit can be expanded with optional modules (e.g., additional I/O, communication interfaces) to meet growing system requirements.
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### **Cons of the Omron E5AC-QX3ASM-800**
1. **High Initial Cost**
Compared to basic analog controllers or lower-end digital controllers, the E5AC-QX3ASM-800 is expensive. The premium price may not be justified for simple applications where basic control is sufficient.
2. **Complexity for Beginners**
While the interface is user-friendly, the advanced features (e.g., auto-tuning, cascade control) can be overwhelming for users without prior experience in industrial automation. Training may be required.
3. **Limited Built-in Data Logging**
The basic model may not include extensive built-in data logging. Users may need to rely on external systems (via Modbus) to record long-term trends, which adds complexity.
4. **Software Dependency for Advanced Features**
Some advanced functions (e.g., detailed alarm histories, remote diagnostics) may require Omron s proprietary software (like **CX-One** or **CX-Programmer**), which could be an additional cost and learning curve.
5. **Physical Size and Installation Space**
The unit is larger than some compact digital controllers, which may be a constraint in space-limited environments.
6. **Potential for Overkill in Simple Applications**
If the application only requires basic on/off or simple PID control, a less expensive controller (e.g., a basic Eurotherm or Ashcroft model) might suffice without the added complexity.
7. **Sensor Compatibility Considerations**
While it supports multiple sensor types, users must ensure compatibility between the controller and their specific sensors (e.g., Pt100 vs. thermocouples). Incorrect sensor selection can lead to inaccurate readings.
8. **Firmware Updates and Compatibility**
Omron occasionally releases firmware updates to improve functionality or fix bugs. Users must ensure their system is compatible with these updates, which may require technical support.
9. **No Built-in Wireless Connectivity (Standard Model)**
The basic model lacks built-in wireless (Wi-Fi/Bluetooth) communication. Users needing remote access may need to add a separate wireless module or gateway.
10. **Maintenance and Calibration Requirements**
Like all precision instruments, the controller and sensors may require periodic calibration to maintain accuracy. This adds to long-term operational costs.
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### **Conclusion**
The **Omron E5AC-QX3ASM-800** is a **highly capable, reliable, and precise** temperature controller suited for **industrial, laboratory, or pharmaceutical applications** where accuracy, flexibility, and integration with larger systems are critical. Its advanced features, robust build, and strong support make it a **premium choice** for professionals who need a **scalable, future-proof solution**.
However, the **high cost, complexity for non-experts, and potential overkill for simple applications** mean it may not be the best fit for **budget-conscious users or basic temperature control needs**. If the application demands **high precision, automation, and compliance with industry standards**, the E5AC-QX3ASM-800 is an excellent investment. For **simpler or cost-sensitive applications**, a lower-end controller might be more appropriate.
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### **Recommendation**
**Buy the Omron E5AC-QX3ASM-800 if:**- You require **high-precision temperature control** ( 0.1 C or better).
- Your application involves **complex processes** (e.g., pharmaceutical manufacturing, chemical reactions, or multi-stage heating/cooling).
- You need **Modbus integration** with PLCs or SCADA systems.
- **Reliability, durability, and long-term support** are priorities.
- You plan to **scale the system** in the future with additional I/O or communication modules.
**Consider alternatives if:**- Your budget is **limited**, and a simpler controller (e.g., Eurotherm 2408, Ashcroft 3216) would suffice.
- You lack **technical expertise** to fully utilize advanced features.
- The application is **basic** (e.g., simple oven or incubator control).
- You need **wireless connectivity** out of the box (may require additional modules).
For most **industrial or high-precision applications**, the **Omron E5AC-QX3ASM-800 is a strong recommendation** due to its performance and reliability. However, always **compare it with other models** (e.g., Omron s newer E5AC-QX3ASM-1000 or competitors like Eurotherm) to ensure it meets your exact requirements.
Details:
Location: B-98 WIT/26. You are buying one digital temperature controller. This unit is used with warranty. Ideal for precise temperature control in industrial settings, it is compact and user-friendly.
Enhance your efficiency with this essential temperature controller today. Same day shipping options search MRM Machine. Discover the Omron E5AC-QX3ASM-800 Ver 2.1 Digital Temperature Controller, a reliable addition for your automation needs.
part #: e5acqx3asm800 prices
- $59.99-$186.00
specifications temperaturcontr:
- brand: Omron
- mpn: E5ac-qx3asm-800
- part type: Digital Controller
- location: B-98 Wit/26
seller temperaturcontr:
- city: Blanchester, Ohio
- # reviews: 16850
- rating: 100.0%
returns temperaturcontr:
- method: Money back
- policy: Returns Accepted
- paid by: Buyer
- time: 14 Days
offer temperaturcontr:
- started: May 29, 2026
- best offers: True
- sold: 0
- options: Ship-to-home
- quantity: 1
- availability: In Stock
general temperaturcontr:
- condition: Used
- PLCs HMIs > PLC Peripheral Modules > PLC Temperature Modules
shipping temperaturcontr:
- transit: 3-6 Days
- cost: $7.25
- type: Fixed
- class: Standard
- service: Standard
payments temperaturcontr:
- wallet: Paypal
- credit card: Mastercard
- other
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