The Elcometer 7061 surface roughness tester is a light weight and portable measuring solution for the range of surface roughness measurements required for compliance to International Standards.
In protective coating applications there is a requirement to measure surface roughness.
Measurements of surface roughness are expressed in terms of Ra, Rz or Tp. These values include peak-to-valley profile measurement in combination with an assessment of the frequency of peaks within the sample area.
The Elcometer 7061 surface roughness tester is suitable for assessing surface roughness conditions in a wide range of general industrial applications; particularly where the sample is too large to bring to the laboratory.
How to use a surface roughness tester
Surface roughness testers consist of a stylus which is mechanically drawn across the surface recording an 'image' of the surface roughness across a pre-defined sample length. The measurement technique provides a number of measurement parameters including:
Rmax: The greatest distance between the highest peak and lowest valley over the sampling length.
Ra: The average surface roughness over the sampling length.
Rt: The distance between the highest peak and the lowest valley within any given sampling length.
Rz: The average distance between the highest peak and the lowest valley over a number of sampling lengths.
|-||Elcometer 7061 MarSurf PS1 Surface Roughness Tester||•|
|Unit of Measurement||Metric, inch|
|Measuring Principle||Stylus Method|
|Stylus Pick-Up Supplied
(Other stylus pick-ups are available)
|Inductive skidded stylus pick-up, 2µm (80µin) stylus tip, measuring force approx. 0.7 mN|
|Parameters||24 (with tolerance limits): Ra, Rq, Rz equiv. to Ry (JIS), Rz (JIS), Rmax, Rp, Rp (ASME),
Rpm (ASME), Rpk, Rk, Rvk, Mr1, Mr2, A1, A2, Vo, Rt, R3z, RPc, Rmr equiv. to Tp (JIS,
ASME), RSm, R, Ar, Rx
|Measuring range||350µm, 180µm, 90µm (changes automatically)|
|Profile resolution||32nm, 16nm, 8nm (changes automatically)|
|Filter†||Phase-correct profile filter (Gaussian filter) according to DIN EN ISO 11562, special filter
according to DIN EN ISO 13565-1, ls filter according to DIN EN ISO 3274 (can be disabled)
|Cutoff lc†||0.25mm, 0.8mm, 2.5mm; automatic (0.010”, 0.030”, 0.100”)|
|Traversing length Lt†||1.75mm, 5.6mm, 17.5mm; automatic (0.069”, 0.22”, 0.69”)|
|Traversing length (acc. to MOTIF)||1mm, 2mm, 4mm, 8mm, 12mm, 16mm (0.040”, 0.080”, 0.160”, 0.320”, 0.480”, 0.640”)|
|Evaluation length ln†||1.25mm, 4.0mm, 12.50mm (0.050”, 0.15”, 0.50”)|
|Number n of sampling lengths†||Selectable: 1 to 5|
|Memory capacity||Max. 15 profiles, max. 20,000 results|
|Other functions||Blocking of settings (code-protected), date/time|
|Interfaces||USB, MarConnect (RS232)|
|Dimensions||140mm × 50mm × 70mm (5.51” × 1.97” × 2.76”)|
|Long-range power supply||100V to 264V|
|Packing List||Elcometer 7061 MarSurf PS1 base unit, drive unit, 1 x standard stylus pick-up, built-in
battery, roughness standard integrated into casing, height adjustment accessory, stylus
pick-up protection, universal charger / mains adapter, USB cable, carry case with shoulder
strap and belt loop, calibration certificate and operating instructions
ASTM D7127, ASME B46, DIN 4768, EN 10049, ISO 4287, ISO 4287/1, JIS B 0601, SSPC PA 17
Standards in grey have been superceded but are still recognised in some industries.
• Calibration Certificate supplied as standard
† According to ISO/JIS
|-||Stylus pick-up Extension; 80mm (3.15”)|
Ideal for measuring points located deep within cylinders
|-||Stylus pick-up PHT 3-350|
For measurements in bores from 3mm (0.12”) diameter
|-||Stylus pick-up PHT 11-100|
For measurements at recessed measuring points, e.g. in grooves from 2.5mm (0.10”) wide and up to
7.5mm (0.30”) deep
|-||Stylus pick-up PHTR 100|
For measurements on concave and convex surfaces
|-||Stylus pick-up PHTF 0.5-100|
For measurements on tooth flanks
|Stylus pick-up PT 150|
Dual-skid stylus pick-up for measurements on metal sheets and roller surfaces according to DIN EN
|-||Stylus pick-up PHT 6-350|
|-||Stylus pick-up PHT 6-350, 5µm Probe Tip|
For measurements on flat planes, in bores from 6mm (0.24”), 17mm (0.67”) deep and in grooves
from 3mm (0.12”) wide
|-||Measuring Stand ST-D|
|-||Measuring Stand Mount - Required to fix the Elcometer 7061 to the measuring stand|
|End Face Vee-Block - For measuring on flat faces of cylindrical and planar components|
|-||Adapter Set for Transverse Tracing; Comprising of Adapter for Transverse Tracing and Vee-Block Holder with|
Vee-Block - For hand-held transverse tracing of cylindrical measuring objects
MarSurf PS1 Explorer Evaluation Software
Available as an optional accessory PS1 Explorer Evaluation Software allows the Elcometer 7061 to be connected to a PC or laptop; using the USB cable supplied to document protocol profiles, results, statistics and to print out all your measurement results.