CO2 – Measurement and Monitoring of Carbon Dioxide in Rooms

CL11 - inexpensive multiple parameter meter

The CL11 benchtop display unit is an inexpensive multiple parameter meter that simultaneously measures and records CO2, humidity and temperature. Equipped with the field-tested ROTRONIC HYGROMER® IN-1 humidity sensor, this instrument offers unbeatable value for money. Using the ROTRONIC software HW4, it can be easily set to record as required and data can then be downloaded, saved and analyzed.

Features:
• Measures and logs CO2, relative humidity and temperature
• ROTRONIC HYGROMER® IN-1 humidity sensor
• 40,000 data point memory for CO2, humidity and temperature values
• Maximum, minimum and average values displayed
• Adjustable audible and visual CO2 alarm
• Optional external temperature probe
• Includes software for configuration and data download

More Information
Humidity sensor ROTRONIC HYGROMER® IN-1
Temperature sensor Thermistor
Long-term stability < 1.5 %RH per year
Measuring range 0...5'000ppm; 0...100%RH; -20...60°C
Accuracy at 23 ±5 °C ±30 ppm ±5 % of the measured value, <2.5 %RH (10...90 %RH), ±0.3 °K
Response time t 63 <30 s, without filter
Power consumption Via AC1214 AC adapter (included in the delivery package)
Dimensions 157 x 120 x 45 mm
Alarm indicators Adjustable for CO2 measurement
Exploitation software ROTRONIC HW4
IP protection rating IP30
Real time clock w.backup battery Yes
Weight Approx. 200 g
Housing ABS
Parameters shown CO2, relative humidity and temperature
Current consumption 50 mA
Measured value memory 40,000 values with time stamp, automatic recording (%RH / °C / CO2 / external temperature probe)
Measurement principle Non dispersive infrared (NDIR) with automatic baseline correction (ABC)
Response time <10 sec @ 30 cc/min. flow, <3 min diffusion time
Adjustment points Automatic calibration, manual calibration at 400 ppm and 35, 80 %RH
Pressure dependence +1.6 % reading per kPa
Zero drift <10 ppm/year
Maintenance No maintenance (standard indoor application)
Warm-up time <1 min.

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