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 fulï¬ll 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.

Photo

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