Parallax 64200 4-20 mA R Click
Parallax 64200 4-20 mA R Click
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The Parallax 64200 4-20 mA R Click is a precision analog current loop measurement module designed for industrial automation and sensor interfacing applications. This microelectronics-grade click board enables engineers to accurately read and transmit standardized 4-20 mA industrial signals, which represent the universal language of process control systems. The module solves the critical challenge of converting analog current measurements into digital data for microcontroller-based monitoring and control systems.
Specifications
| Specification | Details |
| Product Type | 4-20 mA Current Loop Measurement Click Module |
| Brand | Parallax |
| Model Number | 64200 |
| Origin | Original/Authentic |
| Input Current Range | 4-20 mA industrial standard loop |
| Output Voltage Range | 0-5V or 0-3.3V selectable |
| Measurement Accuracy | ±0.5% of full scale |
| Operating Temperature | 0 to 70 degrees Celsius |
| Interface Standard | MikroElektronika Click format |
| Supply Voltage | 3.3V or 5V compatible |
Why Choose Parallax 64200 4-20 mA R Click?
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Key Features of Parallax 64200 4-20 mA R Click
- Precision current-to-voltage conversion with ±0.5% accuracy enabling reliable industrial sensor measurements
- Dual voltage output compatibility supporting both 3.3V and 5V microcontroller systems simultaneously
- Integrated reverse polarity and overvoltage protection safeguarding connected electronics from field installation errors
- Low thermal drift design maintaining measurement stability across industrial temperature ranges without recalibration
- Click board standard form factor enabling plug-and-play integration with Parallax development platforms and compatible systems
- Onboard filtering and EMI suppression circuitry reducing noise in electrically noisy manufacturing environments
Perfect For
- Industrial process control systems monitoring pressure, temperature, and flow sensors transmitting 4-20 mA signals to programmable logic controllers
- Building automation and HVAC systems integrating analog sensor data into networked control systems for energy management
- Water treatment and wastewater monitoring applications where standardized current loop signals ensure long-distance transmission without signal degradation
- Manufacturing quality assurance systems capturing analog sensor data from production line equipment for real-time monitoring and data logging
- IoT gateway development projects bridging legacy 4-20 mA industrial sensors with cloud-based analytics platforms
- Laboratory instrumentation and test equipment interfacing precision analog measurements with digital acquisition systems
How to Use
To implement the Parallax 64200 4-20 mA R Click, first identify your microcontroller platform and select the appropriate socket on your development board. Connect the incoming 4-20 mA signal to the designated input terminals, ensuring proper polarity as marked on the PCB silkscreen. Configure your microcontroller's analog-to-digital converter to sample the output voltage on the designated analog input pin, typically with 10-bit or 12-bit resolution for industrial applications requiring 0.1% or better measurement accuracy.
Establish the calibration relationship in your firmware by reading the ADC value at 4 mA minimum signal and 20 mA maximum signal, then apply linear scaling to convert digital counts to actual current values. The module's output voltage is directly proportional to input current, so a simple two-point calibration ensures measurement accuracy across the entire range. Implement software filtering such as moving average or exponential smoothing to eliminate electrical noise from switching power supplies and motor drives common in industrial environments. Test your system with a precision current source before deployment to verify end-to-end accuracy.
Product Overview
The Parallax 64200 4-20 mA R Click operates on the principle of precision transimpedance amplification, converting incoming 4-20 mA current signals into proportional voltage outputs compatible with standard analog-to-digital converters. The click board features a high-precision current-to-voltage converter circuit with low offset drift and excellent linearity across the entire measurement range. This design ensures that industrial sensors transmitting standard loop current signals can be directly interfaced with digital systems without requiring external signal conditioning circuitry.
What distinguishes this module is its integration of protective circuitry against common industrial hazards including reverse polarity protection, overvoltage transients, and electromagnetic interference filtering. The board follows the MikroElektronika click standard form factor, enabling seamless integration with development platforms and industrial IoT gateways. The precision reference circuitry maintains calibration stability across temperature variations from 0 to 70 degrees Celsius, critical for long-term reliability in harsh manufacturing environments.
Frequently Asked Questions
What is the difference between 4-20 mA and 0-10V sensor signals?
The 4-20 mA current loop standard is preferred in industrial environments because current signals are immune to voltage drops across long cable runs, making them ideal for transmitting sensor data over distances exceeding 100 meters. The 4 mA minimum ensures the system can distinguish between a valid zero reading and a broken wire condition. The Parallax 64200 converts these robust current signals into voltage outputs suitable for microcontroller ADC inputs.
Can this module handle negative current or reverse polarity?
The Parallax 64200 includes integrated reverse polarity protection that prevents damage if connections are accidentally reversed. However, the module is designed specifically for unidirectional 4-20 mA signals and will not accurately measure negative currents. Always verify correct polarity before powering the system, as indicated by the marked terminals on the PCB.
What resolution and accuracy can I achieve with this module?
With a 12-bit ADC on your microcontroller, you can achieve approximately 0.39 mA resolution across the 4-20 mA range, translating to about 2% of full scale. Combined with the module's ±0.5% accuracy, your overall system accuracy will be approximately ±0.7% to ±1%, suitable for most industrial monitoring applications. For higher precision, implement software averaging over multiple ADC samples.
Does this module require external power supply?
The Parallax 64200 operates directly from your microcontroller board's 3.3V or 5V supply rail, requiring no external power supply. The click board draws minimal current, typically under 10 mA, making it compatible with battery-powered and low-power embedded systems.
Are bulk discounts available?
Yes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.
Customer Support
Email: techdepotindia@gmail.com
WhatsApp: Available for setup and troubleshooting help
Order your Parallax 64200 4-20 mA R Click today and start building your next project.