The Elcometer224 Digital Surface Profile Gauge uses the well-proven method described in ASTMD4417 method B. A pointed tungsten carbide tip locates the bottom of the valleys of the profile and the distance to the reference flat surfaceformed by the foot of the gaugeis measured. Prior to use the tip is aligned to the foot by placing the gauge on a flat glass slide and the gauge is set to read zero.
The Digital Surface Profile Gauge is available in two versionsStandard and Top. The Standard version displays the running statistical valuesin either metric (microns–µm) or imperial (mils) units but does not have memory for the readings. Now with Bluetooth wireless communicationsthe Elcometer224 Top version has a memory for up to 50000 individual readings in up to 999 batches.
Both versions of the gauge have a range of 500µm (20mil) and can take readings at a rate of more than 40 readings per minute with an accuracy of ±5percent of the reading or ±5µm (0.2mil)whichever is the greater.
The User cannot guarantee to get the tip to the bottom of the valley for every reading so the method requires that average of 10–15 readings are taken over a 15cm (6-in) square area. This is easily done using the rolling statistical calculation feature of the digital gauge.
The Elcometer224 Top version can upload readings taken on site to a PC running the ElcoMaster Software. The software supports Bluetooth communication for up to seven different Bluetooth enabled gauges at the same time and will also support RS232 communication for all gauges with this data output format.
ElcoMaster features include: creation of professional reports in seconds with export to spreadsheetstext files or save as PDF or JPEG files; wide range of standard reports include; individual measurements; statistics; histograms; individual line or bar charts; log normal; pie charts; fully customise reports using the ElcoMaster Report Designer Tool.
In additiondigital photographs can be assigned to an individual batch of dataallowing the inspection area to be shown in the reports.
Measurement of the profile height of a grit or shot blasted surface is made simplequick and accurate by the use of the Elcometer224 Digital Surface Profile Gauge.
ElcoMaster Software provides powerful tools for analysismanagement and reporting of readings data uploaded to a PC via the Bluetooth link or directly using the RS232 cable.o
Enter 79 or at www.engineerlive.com/iog
J F Fletcher is Technical Support Manager with Elcometer Instruments LtdManchesterUK.
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