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Indoo air quality data logger CL11


Catalog excerpts

Indoo air quality data logger CL11 - 1

INDOOR AIR QUALITY DATA LOGGER • 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 conguration and data download

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Indoo air quality data logger CL11 - 2

BE PRECISE: THE MAIN ADVANTAGES AT A GLANCE The CL11 benchtop display unit is the latest development of 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 package SW21, it can be easily set to record as required and data can then be downloaded, saved and analyzed. Sensors / Calibration • HYGROMER® IN-1 humidity sensor • Calibration of humidity sensor at 35/80 %RH • Automatic CO2...

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Indoo air quality data logger CL11 - 3

PRINCIPLES The CL11 data logger evaluates air quality with the combined measurements of CO2, humidity, and temperature. These measurements are important to understand Indoor Air Quality (IAQ) in classrooms, conference and waiting rooms, as well as any indoor areas where people gather. A high concentration of carbon dioxide can develop quickly when closed rooms with insufcient ventilation are lled with people. Carbon dioxide (CO2) is a colorless and odorless gas that exists in the earth’s atmosphere and which is dangerous in high concentrations. The proportion of CO2 in natural ambient air...

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Indoo air quality data logger CL11 - 4

Parameters Range of application Power supply IP protection Clock Alarm CO2, relative humidity and temperature 0…50 °C / 0…100 %RH, non-condensing Via AC1214 AC adapter (included in the delivery package) IP30 Real time clock with 2 min. battery backup Adjustable for CO2 measurement Technical information/Functions Current consumption Warm-up time Memory capacity 44 mm CO2 measurement Measurement principle 50 mA <1 min. 40,000 values with time stamp, automatic recording (%RH / °C / CO2 / external temperature probe) Measurement range Accuracy at 23 °C ±5 K Response time Adjustment point...

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