Rotronic CL11 | CO2 data logger | BSRIA Instrument Solutions

The Rotronic CL11 benchtop display unit is a multiple parameter meter that simultaneously measures and records CO2, humidity and temperature. Equipped with the ROTRONIC HYGROMER® IN-1 humidity sensor, this instrument offers unbeatable value for money. Using the ROTRONIC software package SW2.x, it can be easily set to record as required and data can then be downloaded, saved and analysed.

This instrument is ideal for indoor air quality (IAQ) / indoor environmental quality (IEQ) studies in schools, offices or domestic dwellings.

The Instrument Solutions rental models come complete with: 

1x CL11 temperature, humidity and CO2 data logger with AC power supply, SW2.x software disk, external temperature probe and calibration certificate

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
• Real time clock with backup battery
• Includes software for configuration and data download

Technical

Dimensions      157 mm x 120 mm x 45 mm

Weight approximately      200 g

Range of application       0 to 50 °C / 0 to 100 % rh, non-condensing

Accuracy at 23 ± 5 °C      ± 30 ppm ± 5 % of the measured value, < 2.5 % rh (10…90 % rh), ± 0.3 K

Measuring range      0 to 5,000 ppm; 0 to 100 % rh; – 20 to + 60 °C

Measurement principle      Non dispersive infrared (NDIR) with automatic baseline correction (ABC)

Adjustment points      Automatic calibration, manual calibration at 400 ppm and 35, 80 % rh

Pressure dependence       + 1.6 % reading per kPa

Null drift      < 10 ppm / year

Measured value memory     40,000 values with time stamp, automatic recording (% rh / °C / CO2 / external temperature probe)

Warm-up time     < 1 minute

Long term stability      < 1.5 % rh per year

Humidity sensor      ROTRONIC HYGROMER® IN-1

Temperature sensor     Thermistor

Response time      < 10 sec @ 30 cc / min. flow, < 3 min diffusion time and 4 s

Response time t 63      < 30 s, without filter

Parameters shown      CO2, relative humidity and temperature

Power supply       AC mains with battery back-up of real time clock

Alarm indicators      Adjustable for CO2 measurement

Exploitation software       ROTRONIC SW2.x

Housing      ABS

IP protection rating      IP30