KZD-3AParticle Counter
The KZD-3A Upstream-Downstream Particle Counter is a specialized instrument designed
for themultiple-pass tests to evaluate the filtration performance of filters (filters). It uses two high-precision laser sensors based on the principle of light-blocking (blocking method)
to simultaneously and separately detect the particle concentration at the upstream and downstream of the multiple-pass test system, thereby obtaining the filtration efficiency and filtration
ratio of the filter (filter element), fully meeting the requirements of standards such as "GB/T 18853-2002 (ISO 16889:1999) Hydraulic Transmission Filters - Multiple-Pass Method for
Evaluating Filter Element Filtration Performance"and "ISO 19438 Diesel Filters and Gasoline Filters for Internal Combustion Engines-Determination of Filtration Efficiency and Impurity
Storage Capacity by Particle Counting Method".
Performance Feature：
1.Based on the principle of the light-blocking method (shading method), it has the
advantages of fast detection speed, strong anti-interference ability, high precision
and good repeatability；
2.High-precision sensor to ensure resolution and accuracy, can achieve both upstream and
downstream particle count；
3.Precision metering sampling system to achieve constant sampling speed and precise cont rol of sampling volume.；
4.5.6-inch true color LCD touch screen, touch operation, simple and convenient；
5.Fully comply with the relevant provisions of ISO16889:1999 (GB/T18853-2002)
and ISO 19438 standards；
6.Easy to operate, can set counting time, interval time, test time; The upstream and downstr eam detection can be set separately or simultaneously；
7.It can be set to "initial" mode to verify the filter test system；
8.It can be set to "count" mode to achieve the function of desktop particle count；
9.Built-in printer can directly print out the test report and filter ratio；
10.Built-in Chinese input method to realize Chinese annotation of test report；
11.It can be connected with the system industrial computer through RS232 serial port to re alize the control and data processing of the particle counter by the industrial compute；
12.It can be calibrated according to ISO4402 or GB/T18854- 2002 (ISO11171:1999,
JJG066-95) and other standards.
Technical Index：
1.Light source: semiconductor laser
2.Particle size range：1μm～250μm
3.Sensitivity：1μm（ISO4402）or 4μm(c)（GB/T18854，ISO11171）
4.Detection channels: 32, 16 upstream, 16 downstream, can be arbitrarily set particle size
5.Particle size measurement：Set at intervals of 0.01 um within the range of 1 μm to 100 μm or 4 μm (c) to 70 μm (c)
6.Sampling volume：10ml
7.Sampling volume relative error：better than ±1％
8.Detection speed：20mL/min
9.Cleaning speed：20mL/min
10.Coincidence error limit：24000～40000 PCS/mL（5% coincidence error limit）
11.Repeatability：RSD<2%
12.Accuracy of counting：±10%
13.Online pressure：0～1.5Mpa
14.Test sample temperature：0℃～80℃
15.Working temperature：0℃～60℃
16.Storage temperature：-30℃～80℃
17.Test time：0~240min
18.Experimental interval：0~600s
19.Data output: built-in printer; RS232 interface can be connected to computer control and
data acquisition
20.Power supply：100～245V，50～60Hz
21.Dimensions：main machine（420×300×190mm），
constant current sampler （310×250×125mm）
22.Instrument net weight：host7kg，constant current sampler5kg