leeb hardness tester lht-300d
Contents
1. Dedicated Software Container Case User Manual User Manual This document Measuring Screen A Measured conversion Record Number average value H Remaining Battery Level Converted Unit O Number of Measurements Total number of measurements Measured Material K Over Upper Lower limit H L Measurement 4 TO F Maximum Value TO aL x Hno 419 Minimum Value x 37 3 0000 A ST amp CAST ST le 419 Average Value ee the selection button upper a for switching over between Standard and Capital Letter Displays E Standard Display W Capital Letter Display Safety Precautions It is important to observe all of the following instructions In order to forestall damages to users other persons and property the instructions below must be strictly adhered to at all times in the manner that they are described The following set of indications classifies the degree of damage that can arise from improper use of the product or a lack of compliance with the instructions Hiltems to be observed are marked by the following symbols N This mark means that ignoring the instruction A Caution can cause injury or physical damage Denotes a prohibition Denotes a requirement You MUST NOT do it You MUST do it Z Caution Read through this User Manual and follow the instructions Any use of th2. may not be uniform Please measure at several spots and take an average value Hardness Test Procedure Please conduct the standard hardness test in accordance with the following procedure Turn the power ON 6 Measuring g Button Press the power button to turn ON the power Set up the material and the unit Using the menu 3 MAT amp SCALE of Set Up Menu below set up the proper material and the unit for the specimen After set up choose 1 MEASUREMENT and return to the measurement screen Press the measuring ring to a specimen Prepare a specimen that meets the conditions indicated in Preparation of a Specimen and press the measuring ring to it The measurement shall be conducted on an area of the specimen where no dent or flaw is observed Pull the handle down and return it up Figure 1 When the handle is pulled down the Prove inside is caught up By returning the handle up as it is to pull up the Prove together Be sure to return the handle while holding it If the handle is released when it is pulled down it may spring up to cause the failure of the unit from the shock Press the measuring button Figure 2 Figure 1 Figure 2 Press the measuring button while the ring is pressed to the specimen The Prove will drop and hit the specimen then its hardness is measured by the rebounding speed When pressing the measuring button please be care
3. original 7 DATA OUTPUT gt 8 CALIBRATION
4. Charging the Main Unit The Main Unit has a battery inside Please re charge the battery when the remaining level has become lower than 20 in accordance with the following procedure 14 AC Adaptor Connect the accessory USB cable Please insert the accessory USB cable into the USB port of the Main Unit and the adaptor Connect the AC adaptor to the power receptacle Connect the AC adaptor plug to a home power receptacle AC 100 V Output the measured data The measured data can be output to a PC Install the software in your PC to use in accordance with the attached How to Use the Accessory Software Changing Measuring Ring Cleaning inside Main Unit The Measuring Ring can be changed to a Ring S to fit the object of measurement If the Measuring Ring is removed the inside of the unit can be cleaned Please periodically clean it Press the measuring button Release the caught up Prove Remove the measuring ring from Main Unit and take out the Prove The measuring ring can be removed by turning Figure 4 Figure 4 Please take out the Prove from inside Thread 2 Measurin Clean the Main Unit a Ring Please use the accessory cleaning brush to clean inside the Main Unit Please clean the Prove as well eliminate the dust from the Prove C Return the Prove attach the Measuring Ring to the Main Unit Insert the Prove in the Main Unit in the direction in Fig 5 Attach the Measuring
5. Ring S on the thread of Main Unit Figure 5 List of Measuring Range with regard to Material and Unit Specifications of Main Unit Material of Measured Specimen ST amp CAST ST 300 900 20 0 68 0 38 4 99 5 80 647 CWT STEEL 300 640 20 4 67 1 46 5 100 7 STAINLESS ST 300 800 19 6 62 4 85 656 G CAST IRON 360 650 90 334 N CAST IRON 400 660 131 367 CAST ALUMINUM 174 560 20 190 BRASS 200 550 13 5 95 3 40 173 BRONZES 300 700 60 290 COPPER 200 690 45 315 Accuracy within 17HL Power Source 3 7 V Lithium Battery Built in Operating temperature range 0 40 C Weiht Main Unit 95g Total Weight Approx 4kg How to Maintain Store after Use Eliminate the dust or stain while use using the dry waste cloth etc If any foreign matter enters the clearance between the Prove and Main Unit the smooth movement will not be possible Capacity of Data Storage Maximum number of storage 1486 Hours for Continuous Use 16 hours from full charge Hours necessary for charging Approx 1 hour Auto Power OFF Approx 2 minutes Size of Main Unit 160x43x26mm Niigata seiki Co Ltd 6 15 22 Tsukanome Sanjo Niigata Japan 955 0055 Tel 81 256 31 5660 Fax 81 256 39 7730 MAIL intl sales niigataseiki co jp Put the product into the supplied container case and st
6. dual magnetization shall be de magnetized without fail No paint on the specimen If the specimen is painted please remove the paint layer Shall not be used for the materials easily get broken or a remaining dent may be problematic A very hard Prove of HLD 1600 will be dropped onto the specimen to measure the hardness It must be noted that a slight dent will remain on the specimen after measurement Use this product only for hardness measuring work Any use of this product for purposes not described in remaining dent may be problematic Avery hard Prove of HLD 1600 will be dropped onto the specimen to measure the hardness It must be noted that a slight dent will remain on the specimen after measurement S Do not use for a magnetized specimen or in a S Do not use for the materials easily get broken or a magnetized environment This device measures the hardness by the rebounding speed of Prove after dropping If the specimen or the environment is magnetized it may influence the S movement of Prove and spoil the precise measurement Do not hit without a specimen If this device is hit without a specimen it may cause a malfunction or reduced accuracy Do not disassemble in a way other than instructed in the maintenance manual or remodel It may cause the reduced accuracy or failure of the product The repair shall be discussed with your distributor or a sales agency ff Confirmation of Accuracy Adju
7. ful not to Average Value HED Maximum Value lower the handle It may result in improper precision MAX at iil Minimum Value r AVG 414 Repeat for designated times Ps 0000 Average Value To acquire the average value repeat the measurements for the STACASTST 075 designated times The number of measurements can be changed in section 2 AVG TIMES in Set Up Menu The measurements are displayed Figure 3 Average Maximum and Minimum values will be displayed in the LCD display Set Up Menu If the power ON button is pressed while the power is ON the display will show the screen for the selection of the set up menu In the selection menu the selection button OG will be used for selection of an item and change of a value and the power button will be used for the decision on the item Figure 3 1 MEASUREMENT Return to the measurement screen 2 AVG TIMES Change the number of measurements to acquire the average value The number can be chosen between two to eight times 3 MAT amp SCALE Change the material and the measuring unit for the specimen Back Side The list of measurable range with regard to the material and the unit When a material is selected the applicable units are displayed please select an appropriate one for your purpose 4 TOLERANCE Tolerance set up function Selection button Up ior changing the value Down for
8. is product in a manner that is not described in this manual may cause an accident this manual may cause damage abrasion of the product or unexpected accidents Use this product only in environments that are Dry and free from contact with water Not exposed to direct sunlight Not accessible by children or individuals other than the user Use of this product in an environment other than those described above can cause inaccuracy damage to the product accidents or injury Treat this device with care Shocks including those suffered from falling or loading heavy materials can result in inaccuracy or damage to the product and therefore should be avoided J Preparation of a Specimen Prepare a specimen for measuring in accordance with the conditions below Mass over 5 kg A specimen which weighs between 2 5 kg or a thin specimen which may easily be deformed shall be measured on a stable plate over 5 kg A specimen which weighs less than 2 kg shall be stuck ona stable plate over 5 kg using some coupling media such as Vaseline to make no clearance with the plate Surface Roughness under R2 ym If it is rougher than R2 um the surface shall be ground finished The radius of curvature of the surface over 30 mm Surface Temperature below 80 C Surface Hardness Test of Surface Hardened Material Thickness of hardened layer over 0 8 mm No magnetization on the surface A specimen with the resi
9. moving the decimal point If the measurement exceeds the range H will be displayed if it falls below the range L will be displayed 5 LOCATION Set up the number for starting storage of the measured data Any number can be chosen for starting storage Change the value using the selection button Up and move the decimal point using the selection button Down 6 MEMORY gt The storage type of measured data can be selected as well 1 SEQ STORE 1 AUTO STORE gt The data will be stored in sequence from the number selected in 5 LOCATION 2 CLOSE STORE gt The measured data will not be stored 2 BATCH STORE The 12 separate groups of data can be stored with 99 measurements per group For example if a lot number group 2 is selected the measured data number 100 199 will be stored 3 CLEAR MEMORY The measured data in Main Unit will be deleted The measured data will be output to a PC 1 SEQUENCE Designate the range of the data number to be output and output the measured data in the designated range 2 BATCH t The measured data of the lot number designated in BATCH STORE of section 6 MEMORY will be output The measuring error will be corrected by the input of error value confirmed by the Confirmation of Precision in the left side of the page 9 CONTRAST gt Adjust the contrast of the display 10 DEFAULT Resume all the various settings to the
10. ore it in a dry cool and dark place Avoid moisture and direct sunlight Keep anyone other than the product s administrator away from the storage place 1205 K 1403 LHT 300D Nugara Sork Hardness Tester for Metallic Material Rebound Type LEEB HARDNESS TESTER Thank you for your purchase of the Leeb Hardness tester This product is a digital hardness tester that can measure the hardness of various metallic materials carbon steel cast steel alloy tool steel stainless steel heat resistant steel cast iron ductile iron cast aluminum alloy brass bronze copper which are not magnetized by measuring the rebounding speed of the Prove after the impact on the surface of a specimen For the safety of yourself and others please read through this User Manual and follow its instructions carefully Ensure that it is retained securely in a place where it can be readily accessed SAFETY NOTICE In this manual the following symbols indicate A Any action that can cause damage S Any prohibited action O Any compulsory instructions When assigning or lending this product to a third party make sure that it is accompanied by this manual For questions regarding this product contact us or the seller MIEXTERIOR FEATURES 1 Prove crrrrttrtetsees The gauge head used for impact measurement Main Unit 6 Measuring 2 Measuring Ring Pressed to the specimen for measuring oe Button 3 LCD Display Measurement
11. s and Settings are indicated 4 USB Port 7 Handle 4 USB Port sesse The accessory USB cable is connected for charging or data output LCD Dis 5 Cover cvrrrrtrrtrteees Cover for 4 USB port Please close this while the port is not used play 6 Measuring Button Press this button to drop the Prove 2 Measuring 7 Handle ssrsrssss iss Pull this handle down to catch the Prove Ring 8 Power eresse Button for selecting power ON OFF l 10 Selection and making the decision on setting Button Lower 9 Selection Button for selecting a setting and to 9 Selection Button Upper switch over between the measuring Button Upper displays 10 Selection Button for selecting a setting and to 8 Power Button Lower delete the measurement just before 11 USB Cable 7 The cable connected to the Main Unit for charging or data output Accessories Nee Pee 12 Cleaning Brush The brush for cleaning inside the Main Unit 13 Measuring Ring S Changed to suit the measuring object 14 AC Adaptor 7 Connected via USB cable for charging the Main Unit 15 Master Block Standard master for calibrating the precision of Main Unit before every measurement 12 Cleaning Brush Dedicated Software Installed in a PC for writing out the measurements 13 Measuring Ring S N 05 ee Container Case The case for containing the Main Unit and accessories after use
12. stment The shock to the Main Unit or worn Prove may cause reduced accuracy of measurement Every time before use please confirm the precision of the Main Unit using the Master Block and adjust it Confirm the hardness indicated on Master Block Confirm the hardness of the Master Block which is indicated on the surface of the accessory Master Block 15 Master Block yi Hardness of Master Block Measure the hardness of Master Block Measure the hardness of Master Block in accordance with the Hardness Testing Procedure in the right side of the page Material Carbon Steel Unit HL Number of Measurements 5 times Please measure the clean surface of Master Block Please measure the area of Master Block where no dent is observed Correction of Error Compare the measured value with the confirmed value If the difference is within 17HL the Main Unit is in the guaranteed range Please use as it is Compare the measured value with the confirmed valueQ If the difference exceeds 17HL correct the error in accordance with section 8 CALIBRATION menu in Setting Menu on the right side of the page J Power ON OFF Power ON Press the Power Button The power turns ON and the measurement screen will be indicated in the LCD display Power OFF Press the Power Button for over 3 seconds The power will be turned OFF and the LCD display will be turned off The hardness of the work for measurement
Download Pdf Manuals
Related Search