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Rotronic CL11 kit

Contact Instrument Solutions

Overview

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 analyzed.

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

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
  • Optional external temperature probe (supplied as standard with Instrument Solutions Hire models)
  • 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

Support documents

  • Download
  • Category
  • File type
  • Download
Download
Rotronic CL11 data sheet.pdf Rotronic CL11 data sheet
Category
Technical document
File type
Adobe Acrobat
Download (795 KB)
Download
Rotronic CL11 user guide.pdf Rotronic CL11 user guide
Category
Technical document
File type
Adobe Acrobat
Download (2 MB)

Common customer questions & answers

QQuestion When the unit is in logging mode how many readings can it store?
AAnswer With time stamp 40,000 readings.
QQuestion Can Rotronic C11 run on its own battery?
AAnswer No, the internal battery is for the memory only, to leave logging over a period of time the unitmust be connected to a mains power supply provided.
QQuestion Will I lose my logging program if there is a break in power while the unit is logging?
AAnswer The unit will hold its logging program for only a few minutes if there is a disruption in the power supply and will resume logging once the power is re-instated. Longer periods would result in the unit having to be re-programmed and re-started.
QQuestion Will I lose my data if the unit was to be disconnected from the power supply?
AAnswer No. The unit will still hold its recorded data.