The auto-set function safely controls descent of the detector, eliminating the possibility of operator error causing damage to the stylus.

Auto-set unit*

178-010

This unit automatically completes a full measurement cycle of stylus contact, measurement, stylus retraction and detector auto-return from just one button push (stylus retraction and detector auto-return can be switched on and off by operating the drive unit).

X-axis adjustment unit*
178-020
This unit helps fine-tune the horizontal (X axis) direction. 

Tilting adjustment unit*
178-030
This unit is used for aligning the workpiece surface with the detector reference plane. It supports the DAT function to make the leveling of workpiece surfaces easier.

Complete set*

178-048
Inclination adjustment angle: ±1.5° Table dimensions: 130×100 mm Maximum load: 15 kg

The height/tilt adjustment unit comes as standard for leveling the drive unit prior to making skidless measurements and, supported by guidance from the unique DAT function, makes it easy to achieve highly accurate alignment.

178-039
Vertical adjustment range: 250 mm
Dimensions: 400×250×578 mm
Mass: 20 kg

U-WAVE-R (Connects to the PC)
02AZD810D

U-WAVE-T* (Connects to the SJ-410)
02AZD880G 
* Requires the optional Surftest SJ-410
connection cable.
02AZD790D

A wide range, high-resolution detector

Detector

Measuring range/resolution: 
800 µm/0.01 µm
80 µm/0.001 µm
8 µm/0.0001 µm

High straightness drive unit

Drive unit

Straightness/traverse length: 
0.3 µm/25 mm (SJ-411)
0.5 µm/50 mm (SJ-412

Surface roughness measurement requires a run-up distance before starting the measurement (or retrieving data). When the SJ-410 Series measures, its run-up distance is normally set to 0.5 mm. However, this distance can be shortened to 0.15 mm using the narrow-part measurement function. This function extends the measurement of narrow locations to features such as piston-ring grooves and O-ring grooves.

Typical applications

Skidless measurement
Skidless measurement is where surface features are measured relative to the drive unit reference surface. This measures waviness and finely stepped features accurately, in addition to surface roughnness, but range is limited to the stylus travel available.

Skidded measurement
In skidded measurements, surface features are measured with reference to a skid following close behind the stylus. This cannot measure waviness and stepped features exactly but the range of movement within which 
measurement can be made is greater because the skid tracks the workpiece surface contour

A variety of interfaces supplied as standard 
The external device interfaces that come as standard include USB, RS-232C, SPC output and foot switch I/F.

Memory card (optional) is supported
The measurement conditions and data can be stored in a memory card (optional) and recalled as required. This enables batch analysis and printout of data after on-site measurement.

Measurement condition
Internal memory: 10 sets
Memory card: 500 sets
Measurement result
Memory card: 10000 sets

High-speed printer prints out measurement results on site
A high-quality, high-speed thermal printer prints out measurement results.
It can also print a BAC curve or an ADC curve as well as calculated results and assessed profiles. These results and profiles are printed out in landscape format, just as they appear on the color-graphic LCD.

The unit is easily transported in a dedicated carrying case which includes holders for the accessories as well as the tester itself. (Standard accessory)