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No.99MBH001B1
SERIES No.179
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CONVENTIONS USED IN USER'S MANUAL Safety Precautions To operate the instrument correctly and safely, Mitutoyo manuals use various safety signs (Signal Words and Safety Alert Symbols) to identify and warn against hazards and potential accidents. The following signs indicate general warnings: Indicates an imminently hazardous situation which, if not avoided, will result in serious injury or death. DANGER Indicates a potentially hazardous situation which, if not avoided, could result in serious inj
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1 INTRODUCTION CONVENTIONS USED IN USER'S MANUAL On Various Types of Notes The following types of notes are provided to help the operator obtain reliable measurement data through correct instrument operation. IMPORTANT • An important note is a type of note that provides information essential to the completion of a task. You cannot disregard this note to complete the task. • An important note is a type of precaution, which if neglected could result in a loss of data, decreased accuracy or instrum
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WARRANTY In the event that the Mitutoyo Digi-Derm should prove defective in workman- ship or material, within one year from the date of original purchase for use, it will be repaired or replaced, at our option, free of charge upon its prepaid return to us. This warranty shall not apply if the product has been subject to fair wear and tear, abuse through misuse or improper use/handling/storage/maintenance/ service/repair or through adaptation/modification by the original purchaser or any third pa
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1 INTRODUCTION CONTENTS CONVENTIONS USED IN USER'S MANUAL ......................... i WARRANTY ........................................................................... iii 1 INTRODUCTION .............................................................. 1-1 1.1 Preface ................................................................................. 1-1 1.2 Application ............................................................................ 1-1 1.3 Nomenclature and Function ..................
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1 INTRODUCTION INTRODUCTION INTRODUCTION INTRODUCTION INTRODUCTION INTRODUCTION 1 1 1 1 1 1.1 Preface 1.1 Preface 1.1 Preface 1.1 Preface 1.1 Preface The Mitutoyo Digi-Derm is a coating thickness gage of non-destructive type with a digital display. If it is connected to the Digimatic Mini- processor, measurements can be printed and processed. Read this op- eration manual carefully before use. 1.2 Application 1.2 Application 1.2 Application 1.2 Application 1.2 Application 1) No.179-741,
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1.3 Nomenclature and Function 1.3 Nomenclature and Function 1.3 Nomenclature and Function 1.3 Nomenclature and Function 1.3 Nomenclature and Function 1) Main unit 1) Main unit 1) Main unit 1) Main unit 1) Main unit Zero adj. volume Display Gain adj. volume Probe cable Power sw. Data output Inch/mm connector or conversion Analog output sw. connector (179-741) Hold key Print key (except for 179-741) AC adaptor jack Battery lid Rod stand (Rear view) MANUAL No. 99MBH001B 1 - 2 1 - 2 1 - 2 1 -
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1 INTRODUCTION 2) Probe 2) Probe 2) Probe 2) Probe 2) Probe Stopper Cable Knurled sleeve Bobbin case Core Fig. 1 Zero adj. volume Used to set the display to zero. Gain adj. volume Used to adjust the Digi-Derm to indicate precisely the thickness of calibration film. Print key Used to output the displayed value to the connected Digimatic Mini- processor. (except for 179-741) Hold key Holds and releases the displayed value alternately. Inch/mm conversion sw. Converts the displayed mm values to inch
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MANUAL No. 99MBH001B 1 - 4 1 - 4 1 - 4 1 - 4 1 - 4
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2 OPERATION OPERATION OPERATION OPERATION OPERATION OPERATION 2 2 2 2 2 2.1 Setting Power Source 2.1 Setting Power Source 2.1 Setting Power Source 2.1 Setting Power Source 2.1 Setting Power Source The Digi-Derm operates from either dry batteries or AC power source. OFF OFF Perform the following setup with the Digi-Derm turned OFF OFF OFF. 1) Dry Batteries 1) Dry Batteries 1) Dry Batteries 1) Dry Batteries 1) Dry Batteries Use four pieces of R6 (SUM-3). First, remove the battery lid on the b
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2.2 Calibration 2.2 Calibration 2.2 Calibration 2.2 Calibration 2.2 Calibration Be sure to perform calibration before measurement. Calibration in- cludes two adjustment: zero adjustment and gain adjustment. The fol- lowing is a calibration procedure using the provided reference speci- men as the base metal. 2.2.1 Zero adjustment 2.2.1 Zero adjustment 2.2.1 Zero adjustment 2.2.1 Zero adjustment 2.2.1 Zero adjustment (1) Turn the Zero and Gain adj. volume to the approximate center of eac
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2 OPERATION 2.2.2 Gain adjustment 2.2.2 Gain adjustment 2.2.2 Gain adjustment 2.2.2 Gain adjustment 2.2.2 Gain adjustment Perform gain adjustment after zero adjustment. (1) Place the provided calibration film on the reference specimen. For accurate measurement, use a calibration film of thickness as close to that of the coating to be measured as possible. (2) Applying the probe on the calibration film, turn the Gain adj. vol- ume until the Digi-Derm indicates exactly the thickness as desig-
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2.2.3 Notes on calibration 2.2.3 Notes on calibration 2.2.3 Notes on calibration 2.2.3 Notes on calibration 2.2.3 Notes on calibration Although the provided reference specimen was used as a base metal in the above example to explain calibration procedures, use a base metal identical in material, shape, and thickness with that of the workpiece for calibration, for improved accuracy in measurement. If such a base metal is not available, use one as similar in these three characteristics as pos
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2 OPERATION 2.3 Measurement 2.3 Measurement 2.3 Measurement 2.3 Measurement 2.3 Measurement 2.3.1 Measurement method 2.3.1 Measurement method 2.3.1 Measurement method 2.3.1 Measurement method 2.3.1 Measurement method If calibration is complete, the Digi-Derm is ready for measurement. It will indicate the coating thickness on the point where the probe is ap- plied. For accurate measurement, the probe should be applied to the same point as that where calibration was performed. Calibratio
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2.3.2 Holding displayed value 2.3.2 Holding displayed value 2.3.2 Holding displayed value 2.3.2 Holding displayed value 2.3.2 Holding displayed value Pressing the Hold key with the probe applied on the measured surface H H ← ← holds the display with "H H H" or "← ← ←" (179-741) sigh indication. The analog output is not held in the HOLD state (179-741). To release the Digi-Derm from HOLD state, press the key again. 2.3.3 Outputting displayed value 2.3.3 Outputting displayed value 2.3.3 Ou
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3 SPECIFICATION AND SAFE-KEEPING SPECIFICATION AND 3 SAFE-KEEPING 3.1 Specifications 3.1.1 General specifications Code No. 179-741 179-745 179-746 179-755 179-756 Workpiece Non-magnetic coating on Non-conductive coating on magnetic material on non-magnetic material Range 1.500mm (.05900") 1.000mm (.03930") Resolution 0.001mm/.00005" Accuracy (range) ±3µm±1 digit ±2µm±1 digit ±2µm±1 digit (0-0.1mm) (0-0.1mm) (0-0.1mm) ±3%±1 digit ±2%±1 digit ±2%±1 digit (0.1-1.1mm) (0.1-1.1mm) (0.1-1.0mm) ±4%±
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Code No. 179-741, 179-745, 179-746 179-755, 179-756 Standard • SUM-3 .................................... 4 accessories • Carrying case ......................... 1 • Case for films ......................... 1 • Base metal, SPC (No. 933038) ...... 1 • Base metal, ALP (No. 937305) ..... 1 • Calibration film set (No. 945014)1 • Calibration film set (No. 945049). 1 25µm (No.527599) 25µm (No.527599) 50µm (No.527600) 50µm (No.527600) 100µm (No.527601) 100µm (No.527601) 250µm (No.527602) 250µm (No.5276
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3 SPECIFICATION AND SAFE-KEEPING 2) Data format d1 d2 d3 d4 d5 d6 d7 d8 d9 d10 d11 d12 d13 MSD LSD All "F" (1111) decimal point 3 (1100) Ordinary Sign Measurement Unit measurement +: 0 (0000) mm: 0 (0000) "F" (1111) -: 8 (0001) inch: 1 (1000) Fig. 9 Data consists of 13 digits (d1 thru d13); each digit consists of 4 bits. Data output to a linked data processor or other peripheral is effected via 0 3 pin No.2 from d1 to d13 in bit serial, from the LSB (2 ) to the MSB (2 ) for each digit. 3) Timing
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3.2 Safe-keeping For long service life of Digi-Derm, observe the following maintenance points: • Keep the Digi-Derm clean and avoid moisture in the storage loca- tion. • Do not apply excessive force or shocks to the Digi-Derm. • Turn the Digi-Derm OFF after use. • Remove the batteries from the Digi-Derm when the Digi-Derm is to be left unused for a long period. • Avoid rubbing or excessive pressing of the measuring face of the probe to prevent scratches or deformation. Wear on the measuring fac
