TSI Instruments 3079A, Operation And Service Manual, Page: 12 / 39

Chapter 2
2-2 Model 3079A
The socket for the power supply, the On / Off Switch, and the flowmeter with needle valve for adjusting
the aerosol flow rate are located at the front-side of the aerosol generator. To fill up the aerosol glass
vessel, unscrew the lid and remove the vessel. The instrument will be ready for operation within a very
short period of time.
A low-noise compressor produces the compressed air required for generating the aerosol. The air is
cleaned by a HEPA-filter before it is introduced to the atomizer.
The aerosol flow rate can be adjusted in the range of 60…300 L/h. This way the particle production
can be adapted to the corresponding application.
To adjust the aerosol flow rate of this model, use the needle valve on top of the flowmeter.
A pressure relief valve is integrated in the head of the atomizer to protect the glass vessel against
excess pressure if the outlet is blocked.
M
Silencer
Valve
Compressor
HEPA Filter
Atomizer
Atomizer vessel
with suspension
Flowmeter
with adjustable
needle valve
Figure 2: Schematic of the Model 3079A, Aerosol Flow Rate Adjustable