FPAS–A

Filter Particulate Analysis System – A Introduction

The presence of particulate contamination in a liquid system is acknowledged to be a major factor governing the life and reliability of that system. The presence of particles residual from the manufacturing and assembly processes will cause a substantial increase in the wear rates to the system during the initial run-up and early life, and may even cause catastrophic failures.

In order to achieve reliable performance of components and system, control over the amount of particles introduced during the build phase is necessary, and measurement of particulate contaminants is the basis of control. The FPAS series of equipments have been developed to fulfill the requirements of the
automotive industry. This, image analysis based equipment, measures the cleanliness level of the components by particulate counting. The results are reported as per international ISO standard 1S0 16232.


The System

The system consists of a upright Huvitz microscope, A high resolution digital camera, A computer controlled programmable motorised xy-z stage to capture image sequentially as per a predefined matrix. Auto focusing arrangement to take care of the any unevenness in the filter paper while capturing the equential images. A special filer holder to place the filter on the microscope stage. Proprietary particulate analysis software.

Methodology

The components are cleaned by by oil,alcohol or any other solvent. The solvent is collected and filtered through a membrane filter using a vacumAsk and vacuum pump. The dirt particles are collected on the filter which then dried in a oven at a specified temperature and time. The dried filter is placed on Microscope where a series of images are captured sequentially using the computer controlled x y stage and autofocus system attached to the microscope.

System Specifications

Particles Size ≤ 5 μ
Filter Holder For holding standard Dia 47 filters
Computer Latest configuration
Software User fri e ndl y softwar e for Particulate Analysis
Reporting As per ISO 16232.

Particulate analysis software

The advanced but user friendly software for Particulate Analysis makes a single high resolution image (mosaic) by joining the images. The mosaic is analysed to create a complete map of the filter. User can get the individual particle details when clicked on the particle of the image, like feret diameter, area, type of particle (reective/non reective), perimeter... The particles in the image can be overlayed with different colours as per different user defined or standard classes and the report is generated accordingly

 

Professional reporting, Compliance with international standards

Sample No: 1212 01 Date: 12.12.13
Sample Type: Filter Paper Microscope: Huvitz
Manufacturer: Optomech Examiner: Exa
Magnification: 5x No.of Fields: 396
Scanned Area (mm2) 1932
Flow through Area (mm2) 1932
ISO 16232-7 (n) code B47057/C10107/D5511/E1569/F257/G42/H2/I1/J1/K0 B95204/C19238/D11696/E3959/F929/G376/H72/I54/J5/K0

Non Reflective Particle Classes

Sl. No. Feret Max Low (um) Feret Max High (um Particle Count Normalized count ISO 16232-7 Code
1 5 15 47057 47057 B47057
2 15 25 10107 10107 C10107
3 25 50 5511 5511 D5511
4 50 100 1569 1569 E1569
5 100 150 257 257 F257
6 150 200 42 42 G42
7 200 400 2 2 H2
8 400 600 1 1 I1
9 600 1000 5 5 J5
10 1000 0 0 K0
11 Total Particle Count 64547

Reflective Particle Classes

Sl. No. Feret Max Low (um) Feret Max High (um Particle Count Normalized count ISO 16232-7 Code
1 5 15 95204 95204 B95204
2 15 25 19238 19238 C19238
3 25 50 11696 11696 D11696
4 50 100 3959 3959 E3959
5 100 150 929 929 F929
6 150 200 376 376 G376
7 200 400 72 72 H72
8 400 600 54 54 I54
9 600 1000 5 5 J5
10 1000 0 0 K0
11 Total Particle Count 131533

Fiber Particle Classes

Sl. No. Feret Max Low (um) Feret Max High (um Particle Count
1 100 150 2
2 150 200 0
3 200 400 18
4 400 600 15
5 600 1000 0
6 1000 3
7 Total particle Count 38

Parameters of largest particles

Sl. No. Feret Max (um) Area (um 2) Perimeter um ECD (um) Particle Type
1 565.636 28911.6 1688.64 191.863 Fiber
2 461.373 15246.1 1189.21 139.327 Fiber
3 438.073 17765.1 1118 150.397 Fiber
4 427.349 12135.7 982.572 124.305 Fiber
5 395.175 12135.7 1219.11 172.626 Non Reflective
6 373.984 11727.8 899.268 122.198 Fiber
7 345.66 9494.82 803.036 109.948 Fiber
8 280.442 9076.3 708.106 107.5 Non Reflective
9 280.4 6842.9 680.535 93.34 Fiber
10 267.221 8505.21 677.35 104.063 Non Reflective

Supply Of Sample Preparation Kit

(Millipore Contamination Analysis Kit)

VACUUM / PRESSURE PUMP

This oil free pump is a portable ACpowered source of vacuum to 585 mm /23

HYDROSOL SST FILTER HOLDER,47MM

Vacuum filtering liquids for analysis of particulate or biological contamination analysis via vacuum filtration. Funnel, base and support screen are made of SS, anodized locking ring, Teon gaskets, grounding set and silicon stopper


VACUUM FILTERING FLASK, 1L

Used for vacuum filtration with Merck Millipore filter holders. Side arm connects to vacuum source with vacuum hose. Also used as water trap to prevent liquid/mist entering the pump

FILTER FORCEPS SS

Used to handle Merck Millipore Membrane filters without damage using highly polished SS forceps blades with beveled, unserrated tips


Hot Air Oven

Hot air oven with PID controller, Temperature range: Ambient + 2C to 200 C, Uniformity achieved by circulating hot air using time controlled continuous rated blower, Inside stainless chamber with perforated trays- 2 nos, I.d: 175 X 175 X 175mm, Outside body powder coated M.S, Temp. Accuracy +/- 1 C and user manual

Petri slides for contamination Analysis(100/pk)

Holds filter securely in place. Transparent cover allows microscopic examination without removal. Rectangular base has rounded corners for mounting on microscope stage. Recommended for storage



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