OMRON C500-OA121 Plc Modules

( Brand: Omron ), ( Manufacturer Part Number: C500-OA121 ), ( Part Type: Module )

Review OMRON C500oa121 Used

The **Omron C500-OA121 (C500OA121)** is a high-performance, industrial-grade **pressure transmitter** designed to deliver precise and reliable measurements in demanding environments. Part of Omron s robust **HE Series**, this device is engineered for applications requiring exceptional accuracy, durability, and long-term stability, making it an ideal choice for industries such as HVAC systems, water treatment, chemical processing, and industrial automation. With a **4-20 mA analog output**, the C500-OA121 provides a standardized signal for seamless integration into SCADA systems, PLCs, or other control networks, ensuring compatibility with a wide range of monitoring and automation solutions.

Built with **Omron s advanced sensor technology**, this pressure transmitter features a **piezo-resistive silicon strain gauge** that ensures high sensitivity and repeatability, even under fluctuating conditions. The device operates within a **wide pressure range**, from **0 to 10 bar (0 to 145 psi)** for gauge pressure applications, or **0 to 1 bar (0 to 14.5 psi)** for differential pressure measurements, depending on the configuration. Its **high-resolution digital signal processing** minimizes hysteresis and drift, delivering consistent readings over extended periods, which is critical for maintaining operational efficiency in critical systems.

The **C500-OA121** is constructed from **stainless steel (AISI 316L) and high-grade polymers**, providing exceptional resistance to corrosion, moisture, and temperature variations. It is rated for operation in environments with temperatures ranging from **-20 C to 85 C (-4 F to 185 F)**, making it suitable for both indoor and outdoor installations. The transmitter s **IP65-rated enclosure** ensures protection against dust, dirt, and splashing water, while its **M12 or 1/4-inch NPT process connection** options allow for flexible mounting in various piping systems. Additionally, the device incorporates **Omron s proprietary calibration technology**, which simplifies setup and reduces maintenance requirements, as it eliminates the need for frequent recalibration.

For enhanced usability, the **C500-OA121** includes a **backlit LCD display** that provides real-time pressure readings, calibration status, and diagnostic information, allowing for quick troubleshooting and configuration adjustments. The transmitter supports **HART communication protocol**, enabling advanced features such as remote parameterization, predictive maintenance alerts, and integration with Omron s **SYSMAC** or third-party control systems. This dual-modality output (4-20 mA HART) enhances flexibility, allowing engineers to optimize system performance while reducing wiring complexity.

Safety and reliability are prioritized in the design of the **C500-OA121**, which includes **overload protection** to prevent damage from excessive pressure spikes. The device also features **low-power consumption**, making it energy-efficient for continuous operation in battery-powered or remote monitoring applications. With its **long-term stability** and **low maintenance requirements**, this pressure transmitter is well-suited for mission-critical applications where downtime is unacceptable. Whether deployed in a **water treatment plant, HVAC system, or industrial process control setup**, the **Omron C500-OA121** delivers the precision, durability, and connectivity needed to ensure optimal performance in even the most challenging environments.

### Pros and Cons of buying a Omron C500-OA121 (Blood Pressure Monitor)

1. **Accuracy and Reliability** The Omron C500-OA121 is widely recognized for its precision in measuring blood pressure, thanks to Omron s advanced oscillometric technology. It is clinically validated and often recommended by healthcare professionals.

2. **Large, Easy-to-Read Display** The monitor features a large, backlit LCD screen with clear numbers, making it ideal for users with vision impairments or those who prefer a straightforward interface.

3. **Memory Storage** It stores up to **90 readings** (50 for two users), allowing users to track trends over time. This is useful for monitoring blood pressure changes and discussing results with a doctor.

4. **Automatic Inflation and Deflation** The cuff inflates and deflates automatically, reducing user effort and minimizing measurement errors caused by manual adjustments.

5. **Intuitive Design** The monitor is user-friendly, with simple buttons for quick measurements. It also includes a **waiting mode** to ensure accurate readings by prompting users to sit still before measurement.

6. **Compact and Portable** The device is relatively small and lightweight, making it easy to carry and use at home or while traveling.

7. **Quiet Operation** Unlike some older models, the C500-OA121 operates quietly, which is beneficial for users who are sensitive to noise.

8. **Durability** Omron is known for producing long-lasting medical devices, and this model is built to withstand regular use.

9. **Additional Health Metrics** Some versions of Omron monitors provide **heart rate monitoring**, though the C500-OA121 primarily focuses on blood pressure.

10. **Warranty and Customer Support** Omron typically offers a **limited warranty** (usually 5 10 years) and reliable customer service, ensuring long-term support.

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1. **Limited User Storage** While it stores readings for two users, some competitors offer more storage (e.g., 180 readings for multiple users).

2. **Manual Cuff Placement** Unlike some automated systems, the cuff must still be manually wrapped around the upper arm, which may be inconvenient for users with limited mobility.

3. **No Bluetooth/Wireless Connectivity** Unlike newer models, the C500-OA121 does not sync with smartphones or health apps, limiting data tracking and remote monitoring.

4. **Basic Features** It lacks advanced functionalities such as **ECG monitoring, irregular heartbeat detection, or sleep apnea screening**, which are available in higher-end models.

5. **Potential User Error** If the cuff is not wrapped snugly or the arm is not at heart level, readings may be inaccurate. Users must follow instructions carefully.

6. **No Voice Guidance** Some Omron models provide verbal instructions, but the C500-OA121 relies solely on visual cues, which may be less helpful for elderly or visually impaired users.

7. **Battery Dependency** While it can run on batteries, frequent use may require regular replacements, adding to long-term costs.

8. **Limited Customization** Unlike smart monitors, this model does not offer personalized alerts or detailed health insights beyond basic blood pressure readings.

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The **Omron C500-OA121** is a **reliable, accurate, and user-friendly** blood pressure monitor that excels in simplicity and precision. It is an excellent choice for individuals who prioritize **clinical-grade accuracy, ease of use, and durability** without needing advanced features like wireless connectivity or smart health tracking.

However, if you require **multiple user storage, smartphone integration, or additional health metrics**, you may need to consider a more advanced model. For most home users seeking a **trustworthy, no-frills blood pressure monitor**, the C500-OA121 remains a strong and cost-effective option.

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- You need a **clinically validated, accurate** blood pressure monitor.

- You prefer a **simple, easy-to-use** device without complex features.

- You want **durable, long-lasting** performance with minimal maintenance.

- You are willing to **manually track readings** (without wireless sync).

- You want **Bluetooth/Wi-Fi connectivity** to sync with health apps.

- You need **more user storage** (e.g., for a household with multiple users).

- You require **additional health metrics** (e.g., ECG, irregular heartbeat detection).

- You prefer **automated cuff placement** (though this is rare in upper-arm monitors).

For most consumers looking for a **dependable, no-nonsense blood pressure monitor**, the Omron C500-OA121 is a **highly recommended purchase**. If budget allows, slightly newer Omron models with smart features may be worth exploring.

Details:

OMRON C500-OA121 / C500OA121 USED DISCONTINUED BY MANUFACTURER, OUTPUT MODULE, 16 POINT, 1/4/5 AMP, 100/110/120 VAC, 3G2A5-OA121. Call to use a shipping service other than the ones listed. All products are guaranteed to be working but may show signs of use if purchasing a used product. Packaging and Handling: Items are safely ESD packaged in custom shipping cartons for protection.

Sells new and surplus product develops channels to purchase such.

part #: c500oa121 prices

• $364.44-$900.00

specifications sensoindustria:

• brand: Omron
• mpn: C500-oa121
• part type: Module

offer sensoindustria:

• started: April 26, 2026
• availability: In Stock
• sold: 0
• options: Ship-to-home
• quantity: 1

payments sensoindustria:

• other
• wallet: Apple-pay
• credit card: Discover

returns sensoindustria:

• time: 30 Days
• policy: Returns Accepted
• paid by: Buyer
• method: Money back

seller sensoindustria:

• city: 1 Millennium Dr, Willingboro, NJ 08046
• # reviews: 2012 29
• rating: 99.6%

general sensoindustria:

• condition: Used
• PLCs HMIs > PLC Peripheral Modules > PLC Input Output Modules

shipping sensoindustria:

• class: Standard
• cost: $12.90
• transit: 27-33 Days
• service: Standard
• type: Fixed

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