Description
Version MFP 3000 G is especially tailored to the requirements of the ISO 16890 measurement procedure.
Aerosol generation with RBG 1000 G (loading) and PLG 1000 and LSPG 16890 (fractional separation efficiency measurement):
The dosing air for the RBG 1000 G solid particle aerosol generator and for the PLG 1000 liquid aerosol generator and and LSPG 16890 salt aerosol generator are regulated with a mass flow controller. This ensures the same operating conditions are always maintained.
DLB 2000 compressed air humidifier for the dispersion air:
Dry compressed air is normally used for aerosol generation, whereby, at the very low volume flows in filter media testing, the rel. humidity of the test volume flow can drop considerably. The DLB 2000 compressed air humidifier can condition the rel. humidity and temperature of the RBG 1000 dispersion air precisely to the required values and thus minimises the influence of rel. humidity on the dust holding capacity to be measured.
Aerosol inlet and aerosol neutralization on MFP 3000 G:
The aerosol inlet on the MFP 3000 G is equipped with a corona discharge to neutralize the test aerosol and ensures a homogeneous distribution of the test aerosol in the raw gas channel. The simple construction allows rapid replacement of the aerosol generator and the raw gas channel is easy to clean.
This special aerosol inlet allows simultaneous connection of both aerosol generators, such that the test sequence can be performed largely automatically.
welas® 2300 aerosol sensors:
The welas® 2300 high concentration sensors ensure unambiguous and coincidence-free fractional separation efficiency and very good count statistics with DEHS. These sensors are also fitted with a special aerosol guide that minimises contamination of the internal optics.
Software:
In the sequence program for the ISO 16890 measurement procedure, the individual test steps – differential pressure measurement, fractional separation efficiency measurements – and the various differential pressure levels can be set for loading in accordance with ISO 16890 requirements. The clear definition of the test parameters in the pre-programmable sequence programs ensure very high level comparability of the results. The evaluation and creation of the test record in accordance with ISO 16890 is included in the software supplied.
