Version:
The TESA TWIN-SURF is a compact, portable roughness measuring device that is compatible with any measuring stand and is powered by a rechargeable battery for a long operating time.
Its monochrome OLED display optimises power consumption and offers high contrast for clear viewing.
Simplified ergonomics with 3 buttons on the top enables easy adjustment of measurement parameters, adjustment of tolerances and starting of the measurement.
Each configuration is automatically stored in the internal device memory. The contact point can be rotated by 90° to allow cross-measurements, thereby expanding the application possibilities.
The TESA TWIN-SURF can be connected to a PC via a USB cable in order to use the free TESA DATA-STUDIO software.
Advantage:
- Compact, lightweight and robust (200 g).
- 90° alignment of the contact point for cross-measurements.
- Storage of the measured parameters.
- Wireless model available.
- Includes free software for creating measurement reports.
Cutting data:
Measured parameters according to ISO 4287:
Ra – Rq – Rt – Rz – Rc - Rmax - RSm - RPc
Measured parameters according to ISO 12085:
Pt – R – AR – Rx – PPc
Additional parameters that the software TESA DATA-STUDIO
Premium Version enables you to measure (with licence):
Measured parameters according to ISO 4287:
Rp – Rv – Rsk – Rku – RΔq – RΔa – Rmr rel – Rδc – Rmr(c)
Pa - Pq - Pp – Pv – Pt – Pc – RPc - R3z
Psk – Pku - PSm- PΔq - Pmr rel – Pδc – Pmr (c)
Rk – Rpk – Rvk - A1 – A2 - Mr1 – Mr2
Measured parameters according to ISO 12085:
Rke – Rpke – Rvke - A1e – A2e – Mr1e – Mr2e
Measurement range (Z): Ra 0 to 50 µm - Rt 0.05 to 200 µm
Total length (X): (Number of cut-off values + 1) x Lc (max. 17.5 mm)
Assessment length (X): Number of cut-off values x Lc
Filter λs: Λc/ λs: 30 – 100 – 300 (according to ISO 3274)
Resolution: 0.001 µm / 0.01 µinch
Resolution cut-off length: 0.25 – 0.8 – 2.5 mm (according to ISO 4287); 1.5 – 2.5 – 4 – 8 – 12 – 16 mm (according to ISO 12085)
Cut-off number: 1 to 5
Electronic filter: GAUSS according to ISO 11562
Fault tolerance: 0.05 µm + (5% R), R = roughness in µm
Shape of the diamond: R = 2 µm, 90°
Gauging force: 0.75 mN (according to ISO 3274)
Speed of travel: 0.5 – 1 mm/s (in measurement and positioning mode)
Keyboard: Three-button keypad with IP67 protection against dust particles and oil splashes
Time until battery fully charged: 50 minutes
Power supply, rechargeable battery: USB-C charger for rechargeable battery 2.4 V, 750 mAh, type NiMh main power supply 100-240 V, 50/60 Hz, USB voltage maximum 5 V
Battery life: Up to 300 measurements (depending on evaluation time)
Internal memory: < 18,000 roughness parameters (with measurement duration 0.8x5) or 30 measurements with graphical representation
Dimensions, weight: 160 x 34 x 34 mm, 200 g