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Aerosol Spectrometer for Atmospheric
Research, Model 1.129 Sky-OPC

Applications
Airborne measurements
with airplanes
helicopters
or balloons ...
Tropospheric research
Vertical Profiling
Measuring of cloud droplets
Fixed station monitoring

Precise aerosol-measurements independent of atmospheric
pressure

Aerosol-Science

Advantages
Real time measurements of
aerosol particles and droplets

The Aerosol spectrometer model 1.129 Sky-OPC is specifically designed for air-borne
measurements at different altitudes. The sample flow rate, maintained by an external vacuum
pump, is controlled by a critical orifice.
The instument detects aerosol particles in real time in the size range 0.25 µm to 32 µm in 31
size channels and displays the results as particle concentration or optionally as particle mass.

Easy to install, flexible, and easy to use
Sample flow independent on
atmospheric pressure
31 size channels within 6 sec.
Fast scanning down to 1 sec.

To install and operate the 1.129 Sky-OPC simply slide it into the docking station and connect
an external power supply (12 V DC) and an external vacuum pump.
The data are stored on a data storage card in the spectrometer or displayed online via
terminal program or the Grimm Windows® software. Additional sensor data such as internal
temperature, differential pressure for volume flow rate, etc. are recorded simultaneously.

Particle concentration, dust
mass (or PM-values optional)
Optional pressure, humidity
and temperature sensors
Easy to install and maintain
due to docking station
Data logging on storage card
or online via PC

Occupational

Data acquisition and presentation
The data can be saved on the data storage card in the spectrometer or easily transfered or
recorded via USB or RS-232 on a computer. The Grimm Windows® Software displays the
data as particle concentration in counts/litre, for all size channels.
Dust mass concentration in µg/m³, for all size channels or PM10, PM2.5 and PM1 values,
according to US EPA guideline are selectable as well.
With the Grimm Windows® software graphs and statistical analysis can be realised quickly
and easily. If required data can be exported as text or Excel™ files for further processing.

D_E_1129-Sky-OPC_rev1

www.GRIMM-aerosol.com