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INDOOR AIR QUALITY SENSOR WITH LED DISPLAY – RALQA-U/RALQA-I
Data-Sheet
INDOOR AIR QUALITY SENSOR WITH LED DISPLAY – RALQA-U/RALQA-I
RALQA-U/RALQA-I
Anwendung
For measuring the air quality in living and office spaces etc, optionally with 0-10 V or 4-20 mA output. The RALQA-U/RALQA-I is a VOC/mixed gas sensor The CO2 equivalents are derived from a conforming algorithm as the odor emissions are overlaying the CO2 value (see graphics). Long-term drifting and operational deterioration can be eliminated by regularly running the automatic calibration. The integrated LED displays the quality of the air by means of an LED color scheme. Green means good, yellow means average and red means poor.
Technische Spezifikationen
| Power supply: | 16 … 24 VDC or 24 VAC |
| Output: | 0...10 V or 4...20mA |
| Measuring range: | 0...2000 ppm |
| Analogue output (load): | min. Load resistance 10 kOhm / load 600 Ohm |
| Operating temperature: | 0°C…+50°C |
| Operating humidity MUF: | 0 … 95%, non-condensing |
| Connection: | Screw clamps 1,5 mm² |
| Protection class: | IP20 |
| LED-Display: | Green LED at 0 … 800 ppm Orange LED at 800 … 1600 ppm Red LED at 1600 … 2000 ppm |
Merkmale
| Type | Output ppm | Output Temp. | {f1Output Humidity |
| RALQA-U | 0-10V | ||
| RALQA/T-U | 0-10V | 0-10V | |
| RALQA/T/F-U | 0-10V | 0-10V | 0-10V |
| RALQA-I | 4-20mA | ||
| RALQA/T-I | 4-20mA | 4-20mA | |
| RALQA/F-I | 4-20mA | 4-20mA |