DMQ QH5 U User Manual Download Page 70 | Manualshive

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Appendix 56

To obtain best results you should always take an average of at least 3
measurements.

Do not apply force on the UCI probe right after connecting the probe
to the unit as this may cause the internal calibration to fail.

Always make sure to configure the unit to the material being tested.

Do not use lubricants or grease in the mechanical parts of the probe.

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Summary of Contents for QH5 U

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Page 2: ...P N QHDU 501 ENG Rev 01 2017...

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Page 5: ...ay illumination and contrast 9 1 7 1 Display backlight illumiination 9 1 7 2 Display contrast 10 1 7 Locking and unlocking the keypad 10 Chapter 2 Measuring with the QH5 U 2 1 Numerical measuring scre...

Page 6: ...ime and date format 26 3 3 3 Keypad sensitivity 26 3 3 4 Auto off time 27 3 3 5 Display display contrast 28 3 3 6 Beep activation 29 3 3 7 Introduction screen 29 3 3 8 Owner information 29 3 3 9 Lock...

Page 7: ...ons on all files 48 4 5 1 Send all files 48 4 5 2 Erase all files 49 4 6 Quick memory menu Mem key 50 4 7 Connecting to a PC with DataCenter 51 4 8 Datalogger configuration 52 4 8 1 Configure communic...

Page 8: ...ilable in the industry to build instruments that are robust precise and easy to operate We are convinced that our products would not be complete without permanent technical and after sales support So...

Page 9: ...ement errors Decisions based on measurements and or results that are erroneous can lead to property damage personal injury or even death Demeq S R L assumes no responsibility as a result of improper u...

Page 10: ...ce method of hardness testing where just like in conventional methods such as Vickers Brinell or Knoop hardness values are obtained by applying constant force to an indenter which generates an indenta...

Page 11: ...in the test loads UCI probe part no QHS010 with a 10N 1Kgf load This probe is ideal for surface hardness measurements as well as parts with low roughness and polished surfaces Recommended for bearings...

Page 12: ...the test piece being measured to make sure it is free from oil and grease To obtain better results always use the UCI probe perpendicular to the test piece surface The QH5 U portable hardness tester i...

Page 13: ...purchase Please remember to register your unit at http www demeq com Contact html Every instrument undergoes thorough testing during manufacturing as well as before shipping In the event that warranty...

Page 14: ......

Page 15: ...play with LED backlight illumination 2 Move Left key View partial statistics Stat 3 Move Up key Manually store a value Store 4 Move Right key Switch to graphical measure mode screen Graph 5 Menu key E...

Page 16: ...old for 2 seconds Make quick and short touches to activate special functions 10 The key Direct measure screen access from any menu screens User selectable functions 11 Horizontal scrolling center poin...

Page 17: ...d gently push the extraction ribbon upward and towards the right to release the batteries Figure 1 3 2 When you install new batteries first insert the positive end of each battery so that it coincides...

Page 18: ...n as this may affect the Datalogger See Appendix Additional information Error Messages Notes Always use new alkaline top brand batteries for extended battery life rechargeable NiMH batteries can be us...

Page 19: ...auto calibrate and in order for the unit calibration to proceed normally the UCI probe needs to be left alone Figure 1 5 Message indicating probe has been connected This section briefly explains all o...

Page 20: ...ng accesory and the adapter are threaded to the UCI probe body accesory 7 is threaded to the probe and the adapting ring 9 is threaded to accesory 7 In Figure 3 threading directions are shown A to mou...

Page 21: ...in Figure 5 show the positions to better hold and use the probe point 1 top of the probe is a large and soft area where you should place the palm of your hand to gently push down Point 2 lets you hold...

Page 22: ...the probe From the measuring screen first set the probe on a test point without applying force 1 Then apply a preload force that will take the indenter half way into the test piece 2 Figure 1 10 Instr...

Page 23: ...or 2 seconds to power on the unit 2 When the unit is on touch for 2 seconds to shutdown the unit 3 With the unit on making short touches to the will activate special functions described in each chapte...

Page 24: ...ntrast adjustment To lock the keypad place your finger on the white dot located in the center of the horizontal scrolling bar between the keys Move your finger to the right following the dotted line a...

Page 25: ...11 Chapter 1 Sliding the finger to the left will unlock the keypad Figure 1 14 Unlocking the keypad Important The keypad can only be locked and unlocked in the measuring screens...

Page 26: ...Datalogger mode indicator X Off M Manual A Auto 3 plus or minus as it relates to the nominal value in differential mode Page 40 4 Battery level indicator 5 Hardness value in the selected hardness uni...

Page 27: ...e 2 2 Measuring screen mode 2 12 User select material Figure 2 3 Measuring screen mode 3 13 Minimum hardness value within the group 14 Average deviation within the group 15 Number of N values for real...

Page 28: ...tored values at the time this function is activated Touch to manually store the measurement in the memory Touch to switch to the real time graphic histogram mode Touch to exit the measure screen and e...

Page 29: ...n in mode 2 Page 13 When the hardness unit is changed statistics graphics and the actual hardness value on screen are set to zero Short touches allow you to switch between the three measure screen mod...

Page 30: ...within group 2 Minimum hardness value within group 3 Average within group 4 Hardness value in the selected hardness unit 5 Battery level indicator 6 High alarm indicator Page 23 7 Reference line of a...

Page 31: ...e hardness unit field To select hardness unit touch Use the to edit and to save the change in the hardness unit touch Figure 2 6 Graphics screen on select edit mode The QH5 U measures steel with no ne...

Page 32: ...rical measure screen touch to enter the select edit mode and touch to select unit Edit using the cursor keys and touch to save Touching the as long it was set to Unit in the direct access options that...

Page 33: ...the end of the menu and move to the next menu option it becomes circular as shown herein Figure 3 1 Example of how a circular menu works To select a menu option touch and to exit and return to the pr...

Page 34: ...board Use the cursor keys on the unit to scroll the virtual keyboard until you find the character that you want to use and touch to select Touch the key to move to the upper case virtual keyboard and...

Page 35: ...ccess keyboard to the most commonly used virtual keyboard keys Each virtual key corresponds to a key on the front panel of the unit as follows Move the cursor to the left Erase the character on which...

Page 36: ...ing screen to access this menu Figure 3 6 Main menu Note Memory Configure and Hardness are explained in detail in Chapters 4 3 3 and 3 4 of this manual Touch on Unit in the main menu to open the list...

Page 37: ...m values using the cursor keys Touch to save the alarm value that you entered and to return to the previous menu Figure 3 8 Alarm menu options Alarm types that you can choose include Beep Audible inte...

Page 38: ...ing the cursor keys and touch to save the new value and return to the previous menu Touch on language identified with a flag to view available language options Use the cursor keys to navigate availabl...

Page 39: ...the general configuration options menu Use the keys to scroll the menu Touch to select any of the menu options Touch to exit and to return to the previous menu Figure 3 11 General configuration optio...

Page 40: ...uch on the option you wish to select and touch to save and exit Figure 3 13 Date and time format menu options This option allows you to set the keypad sensitivity The higher the number the more sensit...

Page 41: ...t that the sensitivity level be changed Tips If the unit will operated using security gloves we recommend that the sensitivity level be raised To make the keypad harder simply lower the sensitivity le...

Page 42: ...ghter or darker where 1 is the lightest and 32 is the darkest Touch on Contrast and use the keys to change the contrast on your screen Touch to save or touch to exit without making changes Figure 3 16...

Page 43: ...e after the unit is turned on and includes owner information such as name telephone number and e mail Touch to enable or disable this option This option allows you to enter owner information the info...

Page 44: ...this menu Notes To set or change text see page 20 When showing user information the e mail address is displayed as Name Domain Important The factory default password is 12345 You can change this passw...

Page 45: ...d by a lock indicating whether the feature is locked closed lock or unlocked open lock Touch on each of the following options to lock or unlock Configure Lock or unlock hardness configuration options...

Page 46: ...ion optoins In order to obtain reliable hardness measurements these options must be set correctly Figure 3 20 Measuring configuration options menu Touch on Material to select the material that corresp...

Page 47: ...ill not appear The QH5 U can add up to eight 8 materials or alloys To create a new material the user must have calibration test blocks or samples of a known hardness of the same material that is being...

Page 48: ...tinue Figure 3 24 Base material menu After choosing the base material select the hardness unit that must be the same as that of the calibration test blocks or samples To select unit touch and then tou...

Page 49: ...39 The following two options are displayed on the calibration screen N 0 touch the key to reset the N number of samples in case of erroneous measurements Erase touch the key to erase the last measurem...

Page 50: ...but a diferent hardness value should be used to generate another calibration point Select Other by touching the to create another calibration point Figure 3 27 Second point for the user material To en...

Page 51: ...t in Group N page 39 User materials can be protected from deletion using lock configuration options page 31 In the measuring screen the is used to quickly access any of the options below as configured...

Page 52: ...ber of measurements the unit automatically updates statistics for the group and closes the lot in the datalogger Partial statistics can also be viewed at anytime touching the key Touch in Group N to o...

Page 53: ...ice this means that obtaining precise readings takes more time as extra care must be taken when preloading the probe Force must be applied gently without hitting the probe on the part being tested Whe...

Page 54: ...e 3 31 Measure mode options and nominal value The modes in which measurements can be represented are Absolute The unit displays the real measured value Differential The value displayed is a result of...

Page 55: ...riginal factory default hardness configuration settings Touch and a confirmation screen will appear Touch to confirm and return to the previous menu or touch to exit without making changes Figure 3 33...

Page 56: ...p Each value is identified with a column letter and a row number Figure 4 1 Organizaci n de datos With this grid structure the location of a value is always represented in a Batch Cell For example F 7...

Page 57: ...pter explains how to create organize and view files Figure 4 2 Memory menu Touch on Files and use the cursor keys to navigate the list of files in the unit Figure 4 3 Creating a file Select a file tha...

Page 58: ...nd new values can no longer be stored In closed files values can only be viewed Whenever you create a new file and another file is already open a warning screen will ask if you want to close the last...

Page 59: ...the cursor keys and touch to jump to the last column containing data Touch on a value to open a histogram that includes that same value as well as the values included in the foregoing cells within th...

Page 60: ...tions in a grid Row Enter a row number using the cursor keys so that when you touch the grid will position itself directly on that row Column Enter the column letter using the cursor keys so that when...

Page 61: ...in a histogram Error Displays the number of errors and error percentage values in the batch based on the high and low alarm settings Stats View statistical information for the batch including Min Max...

Page 62: ...e size of the file as a percentage of total unit memory You can also view the date and time in which the file was created Touch on For all to open the menu for actions that will affect all files store...

Page 63: ...cancel this action Touch to cancel and return to the previous menu or touch to begin deleting all files Figure 4 11 Erase all confirmation screen When the erase all action has been confirmed the foll...

Page 64: ...he first quick access memory screen Label Allows you to tag a value with a number from 0 to 65000 so that it can be easily identified in the grids viewed with DataCenter Tags are not seen in the grids...

Page 65: ...PC open dmq DataCenter software and click Connect in DataCenter When a successful connection is established the files in your unit memory will appear in DataCenter To view their contents simply doubl...

Page 66: ...to select how the unit will communicate with a PC USB or RS232 and if you will be sending data to a PC or an external printer Figure 4 16 Configure communications options Touch on Mode to select the...

Page 67: ...les cannot be directly sent to a USB printer When you use DataCenter to connect your selection of PC or print will not affect communication Touch on Capture to select the mode in which values will be...

Page 68: ...s stored Touch on History to enable or disable this option and touch to exit Touch on Clock to set the time and date options that will be recorded by the Datalogger each time a new batch is opened Tou...

Page 69: ...169 HRB 55 100 28 91 2 67 10 93 HRC 20 68 HS 32 97 MPa 320 2190 The following are minimum test piece requirements that need to be met in order to obtain precise and repetitive measurements QHUS10 10N...

Page 70: ...measurements Do not apply force on the UCI probe right after connecting the probe to the unit as this may cause the internal calibration to fail Always make sure to configure the unit to the material...

Page 71: ...Measuring range Depends on harndess unit and material See table on page 55 Precision In Vickers 5 Conversions According to ASTM E 140 and DIN 50150 Realtime statistics Maximum Minimum Average Range a...

Page 72: ...x 64 pixels with adjustable contrast and backlight 24 mm tall digits Keypad Touch sense keypad with no mechanical parts Battery life 100 Hs with type AA alkaline batteries Operating Temperature 10 C t...

Page 73: ...are the following precautions should be considered Avoid contact with corrosive and abrasive substances Do not clean the unit with solvents Do not leave the unit display exposed to direct sunlight for...

Page 74: ...icone protective cover electronic unit QAC001 Thermal printer USB connecting cable QAI001 Thermal printer Test Blocks Inquire on HV HB HRB HRC test blocks available in steel as well as in other materi...

Page 75: ...rt html Figure A 2 System error message Error 1 Internal Error Cause Internal Error Solutions Turn off the unit and power back on If the problem persists contact Demeq Error 2 Attempt to overwrite a v...

Page 76: ...ories To download firmware and software updates to your QH5 U you must have dmq DataCenter installed on your PC To download the latest updates visit http www demeq com Download html Our service depart...

Page 77: ...P N QHD5U01 ENG Rev 1 2017 dmq...

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