Starrett - Electric Data Collection System

Starrett No. 739 SPC Plus® II Software is a Windows®-based program that is fast, versatile, and easy to use for virtually all SPC/QC applications.

Ease of Use and Functionality

• Move through menus and select options with easy point-and-click mouse control
• Almost limitless style of presentation – one or more charts on the screen, colorful graphics for charts and reports
• Open Database Connectivity (ODBC): The ODBC Query feature allows any ODBC data source to be accessed for read-only analysis. The "query definition" is stored as part of a regular QDB file and can be subsequently re-run to obtain a current set of data. The "query results" appear much like normal columns in the SPC data editor

Versatility

• Data can be entered from any Starrett electronic measuring tool, No. 761 Multiplexer, No. 772 Data Collectors or other RS232C communication devices
• Also has the ability to interface with other brands of tools, data collectors, etc.

Data Manipulation for Superior Analyses

• "Cut/Paste" or "Copy/Paste" to and from other applications, allowing professional presentations
• Spreadsheet functions available in data files
• Convenient tool bar for rapid selection of frequently used options
• Query function available to analyze data based on user defined fields
• Dynamic data exchange allows real time data input from a variety of Starrett or other electronic gages and other Windows® applications
• Choice of file format – standard DBF, high performance QDB for SPC Plus and ASCII
• Accepts virtually unlimited number of features per file. An 80-character descriptive field may be viewed during "File/Open" for easy selection
• Any number of data files and charts may be viewed simultaneously
• Networks: SPC Plus II will run on

Exponentially Weighted Moving Average

• Used like CuSum and also to control processes with an inherent drifting mean, using Montgomery's prediction error technique

Autocorrelation Function

• An analysis tool rather than a control tool. This function determines the extent that current process conditions are dependent on previous conditions

Moving Average/Moving Range or Moving Sigma

• Useful for controlling processes with inconsequential cyclical patterns which would otherwise produce false warnings on standard charts

Multivariate

• Charts signal shifts in the relationship between (up to 10) characteristics using a single parameter

Process Capability Analysis

• No. 739 uses any of the following distributions, at your option:

– Normal
– Weibull
– Folded Normal: typically used for TIR measurements, such as concentricity, roundness, flatness, etc.
– Johnson: provides one of the Johnson family of bounded or unbounded curves fitted to the data (includes the normal and log normal)

• Cp, Cpk, Cr, Cpm and Z values, as well as predicted yields are calculations that are included
• Histogram provides distributions of the process over a batch of measurements or a period of time

Short Run Analysis

• Short Run uses multiple parts, each constituting a distinct "run," to determine common characteristics of the process for all runs. Available as an option in X-Bar, Individual-X, P, Np, C and U charts

ATTRIBUTE DATA

• Used to identify those processes affecting your operations by measuring defect occurrence. SPC Plus® II offers:

– NP Charts and C Charts
– P Charts and U Charts

Other Quality Tools

• The No. 739 Program also provides a variety of management and brainstorming tools for determining factors significant to your company's productivity and profitability

– Scatter Diagram: used to determine if two variables are "related"
– Pareto Analysis: based on "counts" or "costs"

SPC Plus® II Software
No. 739 / EDP 64955

J.W. Donchin Co.
Ph: 773-261-2182 • Fax: 773-261-2867 • Email: sales@jwdonchin.com