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 package SW21, it can be easily set to record as required and data can then be downloaded, saved and analyzed.

• 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

Range of application 0…50 °C / 0…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...5'000ppm; 0...100%RH; -20...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 dependency +1.6 % reading per kPa
Zero drift <10 ppm/year
Power supply / Power consumption Via AC1214 AC adapter (included in the delivery package)
Current consumption 50 mA
Measured value memory 40,000 values with time stamp, automatic recording (%RH / °C / CO2 / external temperature probe)
Warm-up time <1 min.
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
Response time t 63 <30 s, without filter
Parameters shown CO2, relative humidity and temperature
Alarm indicators Adjustable for CO2 measurement
Real time clock w.backup battery Yes
Exploitation software ROTRONIC SW21 free of charge, HW4 subject to charge
Housing ABS
IP protection rating IP30
Maintenance No maintenance (standard indoor application)
Dimensions 157 x 120 x 45 mm
Weight Approx. 200 g