• 2.4” color LCD display includes backlighting and over-size fonts
• Display direction can be changed to be read vertically or horizontally right and left-handed
• Color tolerance judgments, evaluation curves and all data can be
  displayed in one of 16 languages
• Self-timed measurement supported
• Security management supports password protected function locks

• Optional footswitch can be used for touch-free measurement
• Multiple output options include RS-232C and USB for maximum versatility

• A micro-SD card supports high-volume portable data storage - up to 10,000 results can be stored
• Screen capture to memory card also supported

Conforming to various standards

• Conforming to the JIS (1994-1998), ISO, DIN, and ANSI standards.
  
• Additionally, the horizontal roughness parameters S, Sm, tp (mr) can be reported. The SJ-301 also performs such special parameters as plateau rate and RK-related parameters.

• The SJ-301 main unit can store a maximum of 5 sets of measuring conditions. Individual measuring conditions can be selected for each workpiece.
  
• The measuring conditions stored in the SJ-301 can be recalled and switched by direct key operations.
  
• Measured data can be saved at the measurement site & be printed out or recalculated later.
  
• By using an optional memory card, a maximum of 20 sets of measuring conditions, measured data, and statistical results can be stored.

• This function limits touch panel operation to prevent the detector calibration data and measuring conditions from being altered or deleted.
  
• Measuring conditions can be easily controlled among multiple users. Resistance to environment
  
• The SJ-301 keypads have excellent durability — No need to worry about oil stains from the user’s hands.

• Measurement results and analysis profiles can be read in the LCD window.
  
• Signal waves can be scrolled smaller or larger, enabling the operator to read fine details.

• Equipped with a highly sophisticated, high-speed thermal printer.
  
• Selectable orientation for printout — Choose the portrait for conventional printout or the landscape for printing out the image as it is displayed.
  
• BAC (Bearing Area Curved ADC (Amplitude Distribution Curve) can be printed out.

• Statistical analysis of one parameter is possible.
  
• Displays and prints frequency histograms as well as statistical calculation results (average, standard deviation, maximum value, minimum value, pass ratio).

• Calibration can be easily performed by simply inputting and measuring the Ra value inscribed on the roughness reference specimen.
  
• No adjustment with a tool, such as a volume adjustment, etc. is required. GO/NG judgment function
  
• Tolerance values in three-steps can be set for the surface roughness parameters
  
• Judgment symbol is displayed in the result display for a quick judgment of GO/NG.

• The user can select only the parameters needed from a variety of surface roughness parameters provided.

• A built-in battery in the SJ-301 makes it possible to inspect surface roughness even at a site where there is no electrical outlet available.
  
• Portable and convenient — the drive unit and the detector can be stored in the display unit. (Carrying case is a standard accessory.)
  
• Measurement can be performed while the display unit is in the carrying case. The carrying case can be used to protect the display unit.

• An arbitrary evaluation length within the range of 0.3 mm - 12.5 mm (Unit: 0.1 mm)
  can be set.
  
• Measurement in a limited space, where measurement is difficult under the measuring conditions in accordance with JIS standards, is made possible by using the start-up OFF function.

• Special detectors are available for measurements that cannot be performed with a standard detector - such as measurement of small-diameters and deep-grooves.
  
• No tool is required for replacing the detector. Simply pull out and insert a detector.
  
• Just one SJ-301 can perform measurement on a variety of workpiece's, since various types of detectors, depending on the workpiece, can be used.

• SJ-301 employs a differential inductance method, which is used in high-end models.
  
• Measurement with a high-accuracy and a wide measuring range of 300μm.
  
• Parameters that require high-accuracy feed such as SM and S can be measured with the SJ-301.
  
• The detector can be retracted into the drive unit when the SJ-301 is not performing a measurement.

• Display/ printout language is selectable from among English, German, French, Italian and Japanese.

Features

• Equipped with 36 kinds of roughness parameters that conform to the latest ISO, DIN, ANSI, and JIS
  standards.
• A wide-range, high-resolution detector and a straight drive unit provide superior high-accuracy measurement in its class.
  • Detector
    Measuring range: 800 μm
    Resolution: 0.000125 μm (at 8 μm range)
    
  • Drive Unit
    Straightness/traverse length
    SJ-401: 0.3 μm/25 mm
    SJ-402: 0.5 μm/50 mm

• The skidless detector and the curved surface compensation function make it efficient to evaluate
  cylinder surface roughness.
• Ultra-fine steps, straightness and waviness can be measured by using the skidless measurement
  function.
• Measured data can be output to an external PC by using an RS-232C cable (optional).
• Includes a roughness specimen.
• Digital filter function for non-distorted roughness profiles.
• GO/NG judgment function.
• Auto-calibration function.