Model 11-R
GRIMM AEROSOL TECHNIK GmbH & Co.KG Seite 21 von 83
2.3.2 Particle concentration
The LED bar beneath the display shows the particle concentration in the ambient air.
Figure 2-1: Particle concentration
The particle concentration in particles per litre is structured as follows:
2.4 Data storage with SD card
Using a memory card is recommended so that measurement series over time can be recorded without a
connection to a PC. Only SD memory cards can be used. The maximum storage time depends on the
chosen storage interval and the capacity of the memory card.
The memory card must be installed in standby mode before measuring begins.
Figure 2-6: Particle concentration
Figure 2-7: Explanation of the particle concentration display