Model 11-R
GRIMM AEROSOL TECHNIK GmbH & Co.KG Seite 31 von 83
2.7 Analogue jack
The 6-pin analogue jack has 3 analogue inputs to accept measurements from various sensors with an
output voltage between 0 and 10 volts. Furthermore, the jack can provide a supply voltage of +10 volts
to 40 mA to the sensors. Possible sensors include the temperature and moisture sensor (model 1185-
EE) or the temperature, moisture and air speed sensor (model 1154). The measured analogue values
are saved to the memory card and shown sequentially on the display. 10-bit resolution is used (approx.
10mV). The texts and factors for the display can be changed.
Figure 2-14: Pin assignment of the analogue input jack
2.8 Mains charger connection
With the connection on the right side, the aerosol spectrometer can be connected to a 1112C mains
charger (18 VDC). The polarity of the 2.5 mm plug connection is described for the 1112c mains charger.
The installed lithium-ion battery has sufficient capacity for at least 4 hours of operation.
With the {Battery / Location} button, you can
read the charge level of the 11-R on the
display after the filter query.
Before the 11-R spectrometer is used for the first time, the lithium-ion battery in the device has to be
fully charged. Charging can take up to 8 hours. Connect the 1112C mains charger to the jack on the
Mini-LAS 11-R.
Before using the device on battery, always
check the charge level to see if it is sufficient.
Note the correct polarity of the power supply if
other power supplies are used.
Figure 2-15: Battery/Location button
Input 2
Input 3
GND (ground)
+10V/40mA
1-wire bus
Figure 2-16: Section of 1112C type
plate with polarity information
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