Carbon dioxide under control – with stable Modbus communication
Modbus carbon dioxide (CO2) sensor, model RC2-D
This carbon dioxide (CO₂) gas sensor features high accuracy and PASens® technology, making it suitable for various applications such as indoor air quality control in smart buildings, HVAC systems, smart greenhouses for optimizing plant growth, industrial environment monitoring for worker safety, enclosed space health monitoring like warehouses and vehicles, and scientific and medical applications including respiratory devices. Built-in sensors for temperature, humidity, and pressure enhance measurement accuracy, making it ideal for sensitive environments.
Modbus RTU Protocol
Modbus RTU protocol network communication
Dustproof and waterproof package
Waterproof package with IP64 rating
High-quality components
Use of high-quality American components and Swiss sensor with high precision in product manufacturing
Connectivity capability
Compatible with various PLCs, DCSs, and RTUs via RS-485 network
One sensor, four parameters, ultimate precision
Simultaneous measurement of carbon dioxide, pressure, temperature, and humidity with an advanced sensor for more precise environmental monitoring!
CO2 gas measurement
0–10,000 ppm (CO₂ calibrated measurement range)
Output range: 0 to 40,000 ppm
Accuracy within 400 to 5,000 ppm: ±(5% + 40 ppm)
Repeatability: ±10 ppm
Annual accuracy drift (with active automatic self-calibration algorithm): ±(0.5% + 5 ppm of the reading)
Since air pressure affects CO₂ levels, the accuracy of the pressure sensor will impact the accuracy of the measured CO₂ values.
Humidity measurement
Operating humidity: 0 to 90% RH
Measurement range: 0 to 90% RH
Typical accuracy:
±6% RH (at 15 to 35 °C and 20 to 65% humidity)
±9% RH (at -10 to 60 °C and 0 to 90% humidity)
Repeatability: ±0.4% RH
Annual accuracy drift: less than 0.25% RH
Temperature measurement
Operating temperature: -10 to +60 °C
Measurement range: -10 to 60 °C
Typical accuracy:
±0.8 °C (at 15 to 35 °C)
±1.5 °C (at -10 to 60 °C)
Repeatability: ±0.1 °C
Annual accuracy drift: less than 0.03 °C
Operating temperature range: -10 to +60 °C
Short-term storage temperature: -10 to +50 °C (short-term storage refers to temporary conditions during transportation)
Pressure measurement
Operating range: 20 to 110 kPa (absolute pressure)
Equivalent altitude: -700 m at 50 kPa pressure
Calibration range: 50 to 110 kPa (absolute pressure)
Load range: 0.2 to 1.1
Relay applications
The relays in the carbon dioxide sensor have two different control modes:
Mode 1: Modbus network mode
Mode 2: Based on carbon dioxide levels
Each relay can be configured individually to operate in either mode. For example, one relay can be set based on CO₂ gas levels, while another can be controlled via the Modbus network settings.
Simple control mode
The relay operates based on the selected control mode: decreasing or increasing.
In decreasing control mode, the relay turns ON when the CO₂ reaches the maximum range and turns OFF at the minimum range.
In increasing control mode, the relay turns ON when the CO₂ dose reaches the minimum range and turns OFF at the maximum range.
Display and device menu
By default, this display shows the measured levels of carbon dioxide, temperature, humidity, and pressure. The device features a 1.3-inch OLED screen and four buttons for configuring settings.
جهت دریافت تمامی ویدئوهای فعلی و جدیدترین ویدئوهای ضبط شده با موضوعات اتصال و راه اندازی محصول و ارتباط با انواع PLC و HMI کلیک کنید.
Connecting PLCs to Instrumentation Equipment
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