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Cabin Air Filter Test System
BACK
Standards:
Applications:
● Differential-Pressure measurement
● Adsorption/Desorption measurement acc. ISO 11155-2 (DIN 71460-2).
● Operator is guided through test routines
● Modular system
● Versatile
● State of the art
Product Information:
Introduction
Since 1995 our company has been developing test stands for measuring the adsorption capacity or desorption behaviour of adsorptive filters. The design of the test stand, the test procedure and data aquisition have been based on the DIN 71460-2 standard and ISO 11155-2. The test section and associated ductwork are fabricated from stainless steel. Different sizes of filter media samples and elements can be tested and are mounted in a special adapter. A window in front of the test section allows visual observation of the sample during the test. A pair of mass flow controllers is used for metering gaseous components from gas cylinders and a new, sophisticated, dosing unit for liquid gas components has been developed specifically for this application. This is based on evaporation of a droplet spray atomized by means of a two-stream nozzle fed from a μl-dosing pump. The gas concentration can be measured downstream of the filter. An exhaust system by-passing the test channel facilitates maintaining a very stable gas dosing even when the filter must be inserted or removed. This technique of a continuous exhaust also meets stringent safety requirements.
Features
◆ Test channel and rig
◆ Gas dosing system
◆ Exhaust system
◆ Flow meter
◆ Gas analyser
◆ Sensors
◆ Test stand control
Technical Parameters
| Items | Parameters |
| Air flow | 70…700 m³/h ±1% |
| Differential pressure | 0…1000 Pa ±2% |
| Filter adapter | 300mm x 600mm |
| Sensors | Temperature, relative humidity, atmospheric pressure |
| Gases | ● n-Butane 80 ppm (C4H10) ● Toluene 80 ppm (C6H5CH3) ● Sulphur dioxide 30ppm (SO2) ● Ammonia 30 ppm (NH3) ● Nitrogen (purging) |
| Gas analyser | ● FTIR spectrometer, Equinox 55 (IFS 28), Bruker ● FID gas detector, Bernath Atomic ● NDIR, CLD devices ● Other on request |
| Power supply | 3 x 230 VAC, 16 A |
| Test rig dimensions in mm | 1800 x 1100 x 2500 |
FAQs
Q1: What is a Cabin Air Filter Test System used for?
A: It evaluates the filtration performance and airflow resistance of automotive cabin air filters.
Q2: Which filters can be tested?
A: It is designed for cabin air filters used in passenger cars and other vehicles.
Q3: What parameters can it measure?
A: Depending on the configuration, it can measure filtration efficiency, pressure drop, and airflow rate.
Q4: Which industries use this system?
A: It is commonly used by automotive manufacturers, filter producers, and testing laboratories.
Q5: Why is cabin air filter testing important?
A: It helps ensure filtration performance, maintain air quality inside vehicles, and verify product quality.
