Usability

A portable surface roughness tester designed like a hand tool for easy on-site use

• The SJ-200 series of portable surface roughness measuring instruments, which has contributed to industrial development and technological progress through precision measurements, has evolved even further. While maintaining excellent portability and ease of use on-site, it now also provides touch screen functionality for intuitive operability.
• Equipped with a built-in battery, it can perform measurements even in environments where power is not available and can be used approximately 1000 times on a full charge.
• Cableless and paperless work is also made possible by using the Wireless Unit for Measuring Instrument U-WAVE-TIB. This is a user-friendly device that provides compatibility and versatility to meet the diverse needs of manufacturing sites.

User-Friendliness

Convenient portability and one-touch measurement functionality for comfortable operability

• Measurements can be taken on-site, so there is no need to transport large and heavy workpieces.
• Light and compact, the device is easy to carry and allows for simple one-touch measurement.
• The large, easy-to-read display supports touch operation, allowing for intuitive and smooth measurement. It also includes functions such as disabling the touch screen and setting shortcuts using the Home key.
• Its versatility makes it suitable for a variety of measurement situations.

The device is equipped with a touch screen and a new user interface. You can perform operations like changing the display screen and adjusting the settings with your fingertip.
In addition to touch operations, it also supports flick and swipe operations, making it easy for anyone to perform measuring work. You can also disable touch screen operation by holding down the PAGE key.

Even if you are wearing gloves and unable to operate the touch screen, you can still operate with using the physical buttons.
With the addition of the Home key, you can jump to the Home screen with one touch, display the daily menu, and call up calibration measurements and measurement conditions.

The screen size has been expanded to 2.8 inches, achieving high visibility while maintaining a compact device size to fit in one hand.
The backlight makes it clear and easy to see even in dimly lit locations. You can also change the screen display orientation.

• Battery-powered to enable measurement anywhere

• Compatible with new standard ISO 21920

• Supports 25 languages

Compatibility

High-speed transmission of measurement data. Significantly strengthened communication functions

• The Wireless Unit for Measuring Instrument U-WAVE-TIB, which enables Bluetooth® communication, is available as an option.
• Bidirectional communication is now possible without the need to connect a cable.
• By connecting to a smartphone or PC, you can further improve the efficiency of measurement work.
• Of course, USB communication and RS-232C communication are also still possible.
• You can build a communication environment to suit the on-site circumstances.

Versatility

Expand functionality by linking with a smartphone, and other multiple devices

• We provide “SJ-App” and “SJ-Communication-Tool” as dedicated apps to expand remote operation and the scope of measurement result utilization.
• By installing the optional Wireless Unit for Measuring Instrument U-WAVE-TIB, it can be linked to an Android smartphone, etc., supporting expanded functionality and efficient measurement.
• The dedicated apps can be downloaded free from the Mitutoyo website.

Series 178 – Portable Surface Roughness Measuring Instrument

This is a portable measuring instrument that allows you to easily and accurately measure surface roughness.

The Surftest SJ-220 offers you the following benefits:

Robust design, yet comfortable handling
Skid system gives you user friendly and intuitive menu navigation via touchscreen.
It works independently of mains power, allowing you to make on-site measurements.
The 2.8“ high resolution LCD touchscreen gives you excellent readability.
It performs roughness analyses conform to various international standards (EN ISO 21920, EN ISO 4287, ISO 13565, ISO 12085, VDA, ASME, JIS).
Different drive units expanding the range of applications.
Calculation results, assessed profiles and curves can be displayed.
Support of 25 languages.
Optional Bluetooth connectivity to PC and Smartphone.
Free software SJ Communication Tool per download.

Features

Inch-Metric:	Metric
Measuring range:	16 mm
Traverse:	17.5 mm
Measuring speed:	0.25 mm/s; 0.5 mm/s; 0.75 mm/s; 1 mm/s
Functions:	Switchable between 25 languages: Japanese, English, German, French, Italian, Spanish, Portuguese, Czech, Polish, Hungarian, Turkish, Swedish, Dutch, Korean, Traditional Chinese, Simplified Chinese, Slovenian, Russian, Romanian, Bulgarian, Finnish, Thai, Vietnamese, Indonesian, Malaysian
Cable length:	1 m
Detector measuring force:	0.75 mN
Stylus tip angle:	60°
Stylus tip radius:	2 µm
Measuring method:	Differential inductance
Range:	360 µm
Stylus:	Diamond Tip
Skid radius:	40 mm
Profiles:	Primary Profile (P), Roughness Profile (R), R-Motif, DF-Profile
Roughness standard:	EN ISO 21920, EN ISO 4287, EN ISO 13565, EN ISO 12085, VDA 2006, JIS, ASME
No. of sampling length (L):	x1 – x10
Digital filter:	Gauss, 2CR75, PC75
Cut-off length:	λc : 0.08 mm; 0.25 mm; 0.8 mm; 2.5 mm; 8 mm λs : 2.5 µm; 8 µm; 25 µm
Auto-sleep:	The standby time in battery mode can be set between 10 and 600 seconds
Tolerance:	Coloured upper / lower limit
Mass:	510 g
Power supply:	Via AC adapter, rechargeable battery

R51N

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