Key facts
- Brand
- Rotronic
- Model
- CL11
- Category
- Health Care
- Documents
- 2
- Languages
- EN
- Last added
- 2026-10-14
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Rotronic CL11 Desktop Datalogger Short Instruction Manual
The document is a short instruction manual for the Rotronic CL11 Desktop Datalogger. It describes the device as an accurate instrument that displays and records relative humidity, temperature, CO2, and external probe temperature.
Key operational features include automatic data logging with up to 40,000 records per parameter, configurable sampling rates from 1 second to nearly 5 hours, and programmable alarm settings. The manual provides step-by-step instructions for setting the sampling rate, configuring units (Celsius/Fahrenheit), and managing real-time clock settings via function keys.
Rotronic CL11 specifications
| Memory capacity | 40,000 records auto logging |
|---|---|
| Sampling rate range | 1 second to 4 hours 59 minutes and 59 seconds |
| Humidity accuracy | ±3% (10~95%@25 OC) |
| Temperature accuracy | ±0.3OC@5~40OC |
| CO2 accuracy | ±(30ppm+5% of reading)@0~5000ppm |
| Power supply | 5VDC, 400mA at least |
Source: Rotronic CL11 Desktop Datalogger Short Instruction Manual
All Rotronic CL11 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
How do I set the sampling rate for data logging?
Hold down the 'SET' key for 2 seconds to enter setup mode, select program P 40, input the desired time (hour, minute, second), and press ENTER.
From: Rotronic CL11 Desktop Datalogger Short Instruction Manual
How do I calibrate the humidity sensor?
Use 35% and 80% salt bottles for dual point calibration at a steady ambient temperature of 25°C. Plug the probe into the salt bottle to start.
From: Rotronic CL11 Desktop Datalogger Short Instruction Manual
How do I set the sampling rate on the CL11?
Hold down the 'SET' key for 2 seconds to enter setup mode. Use 'UP' or 'DOWN' to select program P40, then press 'ENTER' to input the desired sampling rate from hour, minute to second, and confirm with 'ENTER'.
What is the CO2 calibration procedure?
Press 'SET' + 'START' + 'DOWN' for 3 seconds to enter calibration mode. Select 400ppm CO2, press 'ENTER' to start. Wait about 10 minutes until the blinking stops to indicate calibration is complete. Press 'ESC' to abort without saving.