Technical specifications

Measurement parameters of the roughness tester

Ra, Rz, Rq, Rt

Measuring Ranges

Ra, Rq: 0.005 ... 16.00 μm
Rz, Rt: 0.020 ... 160.0 μm

Resolution

0.001 μm up to the measurement value 10 µm
0.001 μm up to the measurement value 10 µm
0.1 µm for a measurement value higher than 100 µm

Accuracy

Class 2 according to the DIN 4772 standard (> ±10 %)

Units

μm / μinch (selectable)

Display

LCD, 10 mm digits
with backlight

Limit Wavelenghts (3)
(cutt-off length)

0.25 mm; 0.8 mm and 2.5 mm with auto alarm if an erroneous wavelength is selected

Measurement route

1 ... 5 limit wavelengths

Palpation route It

(1 ... 5) + 2 ... 3 limit wavelengths
(depending of the used digital filter)

Palpation velocity

0.135 mm/ with a limit wavelength: 0,25 mm
0.5 mm/ with a limit wavelength: 0.8 mm
1 mm/s with a limit wavelength: 2.5 mm
Back-up velocity 1 mm/s

Digital filter

RC, PC-RC, GAUSS, D-P

Measuring principle

inductive

Probe pointer

diamond, 5 µm ratio, 90º curvature

Drillings

from 6.0 mm, maximum depth of 15 mm

Characteristics of the display

- measurement values
- parameters (Ra, Rz, Rq o Rt)
- Units (µm or µinch)
- Used digital filters
- calibration
- probe position
- memory
- limit wavelength
- Measuring Range

Port

RS-232, directly connected to a PC or a printer
(optional USB-RS232 adapter)

Power supply

Rechargeable Ion-Lithium accumulator, 1000 mHh
Charger: 240 V/ 50 Hz

Temperature range

0 ... +50 ºC

Relative humidity

<80 % H.r.

Dimensions

140 mm 52 mm 48 mm (without probe)

Weight

420 g