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Automated Filter Tester

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Product Description

Automated Filter Tester

AT902 Automated Filter Tester is a universal tester, development according to the standard of NIOSH 42 CFR 84, EN 149：2009, it mainly used for detecting the efficiency of the particulate respirator filtration and detecting the filtration efficiency and resistance of material. Using high precision photometer as detector to ensure accurate results. The tester is divided into two categories, oil and salt fog. The oil spray tester is using DEHS as aerosol and the salt spray tester using NaCl, the solution spray after Ruskin nozzle and drying, then form in to aerosol. The system adopts precision instrument to control flow and concentration, and through integrate of system to communicate with computer, the system has good stability, and it is easy to operate. By detecting the concentration of upstream and downstream, and then calculate the results through the formula. Airflow can be real-time monitored through electric proportional valve and flow meter, to ensure the accuracy of the test flow and the stability. The aerosol concentration can be monitored by electrical proportional valve and differential gauge, and provide stable test particles.

The filtering material tester is a fully automatic instrument which can control the following actions by a computer: ▲It can feedback control and read all of the working parameters automatically: including the volume, the resistance, test time and the efficiency. ▲ Measuring the particle number and the resistance of sample in a test period. ▲Showing operating parameters. ▲The system makes use of serial communication to initiating a transfer of the data files.

Specification

Model	AT902
Detector	photometer
Air volume	(20〜100) L/min
Efficiency	10%-99.99999%
Test time	≤14S
Loading efficiency	10%-99.999%
Photometer detect aerosol concentration range	0.001~200 mg/m3
Aerosol	Salt, DOP, DEHS, Paroline, Corn oil, optional
Resistance	0-2000Pa
Aerosol density	(50〜200) mg/m3(oil); (12〜20)mg/m3(salt)
Detector	photometer
Measuring range	0.3~1μm
Counting median diameter	0.075±0.02μm (salt)
	0.185±0.02μm(oil)
Detect temperature	5~ 35℃
Related humidity	0 ~ 90% RH
Pressure detect	Digital pressure sensor (pressure difference transmitter)
Pressure detect range	(0~0.88)MPa
Efficiency testing range	filter efficiency: 10~99.99999%
Operation display	Computer
Power supply	110V/220V, 50/60Hz

Details and Features

Structure

1. Split-type design, customer can change the generator easily. 2. Aluminium profile frame, nice and easy to clear. 3. The machine can be calibrated and all the origin date is available.

Multifunction 1. This machine can be used for different filter material 2. Customized clamp for different sample size is available 3. Both salt solution and oil solution test can run on this machine

Software 1. Support Chinese and English, menu type operating mode and large LCD display, it’s easy to switch 2. Two test method available: efficient test and load test 3. Simple, fast and automated operation

High Accuracy 1. Adopted high quality photometer 2. Equipped with oil water separator to avoid water effect test result 3. Test date accuracy reach to 0.00001%

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Packing&Delivery

Package
Packaging Details	1. The equipment is covered with film is protect it from water vapour during the trip. 2. The box is filled with foam to protect the equipment from impact. 3. Exported wooden box made from plywood, don't need fumigated.

Payment

Payment Term	T/T	EXW	30% T/T in advance, paid the balance before shipment
			30% T/T in advance, paid the balance before shipment		FOB
				CFR(C&F)	30% T/T in advance, paid the balance against copy of B/L
				CIF	30% T/T in advance, paid the balance against copy of B/L
		L/C	L/C amount above 50,000 usd, we can accept L/C at sight
		West Union	Amount lower than 5000usd
Delivery Time	7~10days after receiving payment for one container

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