Mitutoyo 178-397-2 Surface Roughness Gage Detector

Product Description

The MITUTOYO 178-397-2 is a replacement detector designed for use with Mitutoyo Series 178 surface roughness testers. The detector contacts the workpiece surface during measurement traversal, converting surface texture variations into electrical signals that the gage unit interprets as roughness values. With a stylus tip radius of 10.00 micrometers and a maximum measurement range of 4.00 micrometers, this detector is suited for standard surface finish inspections in machining, grinding, and quality control applications. It measures 74.00 millimeters in overall length with a body diameter of 14.00 millimeters, fitting the Series 178 detector mount directly.

This detector is used in metrology labs, machine shops, and manufacturing quality control environments where surface finish verification is required. It is a drop-in replacement accessory intended for technicians and calibration professionals servicing or maintaining Mitutoyo Series 178 roughness tester units. Typical applications include verifying surface finish on machined components, ground surfaces, and precision-manufactured parts where Ra or Rz values must meet drawing specifications.

Key Features

• Designed specifically for Mitutoyo Series 178 surface roughness testers
• Stylus tip radius of 10.00 micrometers for standard surface texture measurement
• Maximum measurement range of 4.00 micrometers
• Compact form factor: 74.00 mm overall length, 14.00 mm body diameter
• OEM-style replacement detector for field or bench servicing

Compatibility

Designed for use with Mitutoyo Series 178 surface roughness testers and instruments within that series that accept this detector configuration.

Installation Notes

Installation should be performed by a qualified metrology technician or instrument service professional. Power down the roughness tester before removing or installing the detector to avoid damage to the stylus drive mechanism. Handle the detector by the body and avoid contact with the stylus tip to prevent contamination or damage that would affect measurement accuracy. Follow the instrument manufacturer service documentation for proper seating and retention torque guidance specific to the Series 178 mounting interface.