The Hommel-Etamic W20 skidless probe system has been designed specifically for mobile roughness measurement. It not only measures all common roughness parameters, but also evaluates the waviness and total profile of your surface. The measuring instrument is particularly compact and portable. The built-in battery means that the device can be used even without an external power supply.
The measuring probe is automatically positioned on the surface. The motorized probe lowering function simplifies operation — you simply need to position the traverse unit and start the measurement. On completion of the measurement, the probe arm lifts up from the surface automatically. This protects the probe tip from damage.
The large color touchscreen is extremely clear to read and easy to operate. With the integrated printer, you can display your measurement results in graph form immediately. Parameters, profile graphics, Abbott curves and statistical data also can be displayed. The measuring instrument offers seven measuring programs, as well as the option to test with the integrated roughness standard.
Profilometer HOMMEL ETAMIC W20
Measuring principle Scattering method, calibration Total deviation according to DIN 4772 Class 1 Feed Waveline™ 20 Applicable buttons Reference button Sensing distance 20 mm Sensing direction Axial Working area About 360° Operating elements Integrated start button, inclination reference plane Taster (standard) TKL 300L, 2 µm/90° Measuring range ±300 µm Resolution 12 nm* Scanning distance According to ISO/JIS 1.5/4.8/15 mm According to Motif 0.64/3.2/16 mm Max. 20 mm Cut-off length cut-off according to. DIN EN ISO 4288/JIS B601 0.08/0.25/0.8/2.5/8 mm Number of individual measuring sections 1 to n (max. sensing distance) Filter DIN EN ISO 11562: Gaussian filter DIN EN ISO 16610-21: Gaussian filter DIN EN ISO 13565-1: Filters for Rk characteristic values DIN EN ISO 3274: λs-Filter Touch speed 0.15/0.5/1 mm/s; return 3 mm/s Display 4.3“ TFT- colour display with touch screen function Roughness and profile parameters DIN EN ISO 4287 Ra, Rz, Rmax, Rt, Rq, RSm, Rc, Rp, Rv, Rsk, Rku, Rdc, Rdq, RzISO, Rmr, Rmr(c), C(Rmr), Pt, Pz, Pa, Pc, Pp, Pv, PSm, Pq, PSk, Pku, Pdq, Pdc, Pmr, Pmr(c), C(Pmr) DIN EN ISO 13565-1, -2 Rk, Rpk, Rvk, Mr1, Mr2, A1, A2, Rpk*, Rvk* Motif DIN EN ISO 12085 R, AR, Rx, CR, CF, CL, Nr ASME B46.1 Rp, Rpm JIS B601 (2001) Rz-JIS DIN EN 10049 RPc Daimler MBN 31007 R3z Specific characteristics Seal characteristic size Rmr (factor * characteristic) Ripple characteristics DIN EN ISO 4287 Wt, Wz, Wa, Wp, Wv, WSm, Wq, WSk, Wku, Wdq, Wc Motif DIN EN ISO 12085 W, Wx, Aw Battery (basic unit) Li-Ion battery, up to 800 measuring cycles (without print, stroke distance 4.8 mm), volume charge approx. 6 h Measuring programs 7 plus 1 for device testing Data memory (per measuring program) Max. 2000 Measurement records / characteristics and 500 profile records Interface USB Dimensions (L x W x H) Basic device 227 x 225 x 70 mm / 8.9 x 8.9 x 2.8 in Weight 1080 g / 2.4 lbs Feed (L x W x H) Waveline™ 20: 245 x 54 x 75 mm Weight 1100 g / 2.4 lbs Printer Integrated Printing process Static thermographic line Paper / print width 57 ±0.5 mm / 48 mm (1.9 in) Paper roll Ø = 31 mm (1.2 in) Resolution 8 dots / mm, 384 dots / line Printing functions Measurement conditions, parameters, roughness profile, Abbott curve, statistics Battery pack With basic device Interfaces With basic device