Hameg HMC8012 Digital Multimeter
Contents
1. Digital Multimeter HMC8012 All data valid at 23 C 5K after 90 minutes warm up and with 5 3 4 digits DC Specifications DC Accuracy in of reading of range Function Range DC Voltage 400 000 mV 4 00000 V Test Current Voltage drop Input Impedance 10 MQ gt 10 GQ 10MQ gt 10 GQ Resistance 2 4 wire 2 DC Current4 Continuity Diode Test 40 0000 V 400 000 V 1000 00 V 400 000 Q 4 00000 kQ 40 0000 kQ 400 000 kQ 4 00000 MQ 40 0000 MQ 250 000 MQ 20 0000 mA 200 000 mA 2 00000A 10 0000 A3 4000 Q DV 1 1 100 10 1 uA 100 460 10 MQ parallel lt 0 SOV SORIN lt 0 2 V lt 0 60V 1mA eae Notes 1 240 000 480 000 counts exept in 1000V and 10A range 10MQ 10MQ 10MQ 1 Year 23 C 5K 0 015 0 002 0 015 0 002 0 020 0 002 0 020 0 002 0 025 0 002 0 050 0 005 0 015 0 002 0 015 0 002 0 030 0 003 0 060 0 005 0 250 0 003 2 000 0 010 0 05 0 010 0 05 0 010 0 25 0 070 0 25 0 070 0 05 0 010 0 05 0 010 Temp Coefficient 0 18 C 28 55 C 0 0010 0 0005 0 0008 0 0003 0 0010 0 0005 0 0015 0 0005 0 0015 0 0005 0 0020 0 0005 0 0020 0 0002 0 0020 0 0002 0 0020 0 0002 0 0020 0 0002 0 0080 0 0005 0 200 0 0005 0 008 0 0010 0 008 0 0010 0 012 0 0015 0 010 0 0010 0 005 0 0005 0 005 0 0005 2 Specifications are for 4 wire measurement 2 wire measurement using NULL function 3 Maximum current load2. The measurement of alternating voltage applies the same principle In contrast to the DC voltage measurement the AC voltage measurement requires the use of the AC V key Please note that for an AC measurement RMS values will be shown on the display 3 3 Automatic Manual Selection of the Measure ment Range You can use the soft menu keys Range Up or Range Down to switch the measurement range Pressing Range Down will switch to the next lower measurement range pressing Range Up will switch to the next higher measurement range The automatic selection of the measurement range Auto Range 5 deactivated If the function Auto Range Is activated the measurement instrument automatically selects the optimal measurement range If the selected measurement value is too great while the manual selection of the measurement range 15 activa ted the message OVER RANGE appears on the display HMC8012 Brief Introduction 3 4 Displaying Several Measurement Values If you would like to view a second measurement value on the display select the soft menu 2nd Function and select a second measurement value via knob In the current ex ample the second measurement value could be AC V The second measurement value 2nd will be displayed in blue above the display of the main measurement value Main If you select the option None via knob the second measure ment value will be deactivated 3 5 Resistance Measurement with Zero Point For the resista
3. The line 38 resistance of the measurement cable contact resistances and thermoelectric voltages between different metals have been intentionally eliminated by this offset correction The compensation values will not be stored after the HMC8012 has been switched off and have to be redetermined In addition you may also enter the NULL value numerically or via knob The soft menu key ADC Rate and the knob allow you to set the display refresh rate to Slow 5 measurements per second MEDIUM 10 measurements per second or FAST 200 measurements per second The maximum accuracy in measurements is achieved when using the setting Slow ADC Rate The function Auto Zero on page 2 2 of the DC V main menu may be activated ON or deactivated OFF If this function 15 activated the instrument automatically compen sates for the connected measurement cables and deducts this offset from the measurement result automatic zero measurement The input impedance can be set via soft menu key Input Imp to 10MOhm or gt 10GOhm The impedance setting is dependent on the measurement range If the second function 2nd Function is activated dB or dBm you have the option to define a reference value For the function dB the reference value is the voltage Ref Value You can set the reference value numerically or via knob If a reference value is defined you can reset the pre viously selected reference value via soft menu key Null Fo
4. 20 400 700 kHz Frequency Counter Resolution Setting Measurement time Display range Resolution Slow Is EU Sek Beb Medium 100ms 999 99 kHz 10 Hz Fast 10ms 999 9k Az 100 Hz Capacitance Specifications Capacitance Accuracy in of reading of range Function Range Capacitance SOONI 50 00 nF 500 0 nF 5 000 uF 50 00 uF SOOLON 48 1 Year 23 C 5K 2 0 2 5 0 02 0 002 1 0 2 0 0 02 0 002 1 0 0 5 0 02 0 002 1 0 0 5 0 02 0 002 1 0 0 5 0 02 0 002 2 0 1 0 0 02 0 002 Temp Coefficient 0 18 C 28 55 C 0 005 0 005 0 005 Temp Coefficient 0 18 C 28 55 C General Specifications 115V 230V 10 adjustable voltage selector on rear panel Frequency 50Hz 60Hz 25W max 12W typ Power supply Power consumption Ambient temperature EMC compliance Safety compliance Measuring Category Dimensions Weight Warm up time 0 55 operating 40 70 C storage DIN EN 61326 1 DIN EN 55011 DIN EN 61010 1 CAN CSA C22 2 No 61010 1 12 CAT II 600 V CAT l 1000 Voc 750 Vac RMS 222 x 88 x 280mm approx 2 7 kg 90 minutes All data valid at 23 C 5K after 90 minutes warm up and with 5 3 4 digits Data logging Number of measuring counts Rate Log Duration Log Log Daten Interfaces Programming Specifications Internal 50 000 external defined by USB stick capacity Min 5ms typ in accordance to measuring function and resolution Max 3 6
5. red For instance if you set an Interval of 2s and a count of 5 5 measurement values will be captured in intervals of 2s If the function T is activated the soft menu key TIME and the knob enable you to set the duration of the capture of the measurement values ra LOGGING On Trig 4 STORAGE INT ERWAL Fig 6 1 Logging menu setting Date Format Example for a Logging File HAMEG Device under test HM Log File Date 2013 05 27 Start Time 14 27 07 Stop Time 14 27 11 Settings ADC Rate Slow AC Filter j Input Imp 10M DCV V ACV V Flag 15 005159 0 000186 15 005088 0 000195 15 004896 0 000200 DA Power Display Power The soft menu key Power activates the power display The function Power is only available if the measurement of DC AC current is activated For instance if you select the func tion DC V as the main measurement value Main and DC as secondary measurement value 2nd Function or vice versa the power will be shown in the lower display section after confirming your selection via soft menu key Power If the power display is activated the soft menu key Power is marked In yellow To deactivate the power display press the soft menu key Power again 6 5 Measuring AC DC True RMS You can show the true RMS value True RMS below the main measurement value Main on the display via soft menu key AC DC This function is only availabl
6. soft menu allows you to add remove or update languages Please note the date format YYYY MM DD in compliance with multilingual help ISO 8601 standards FIRMWARE Device Yersion Date Build LU New Help Installed languages Available languages USB flash drive front ready The searc gem will start by the selection of a submenu Exit Fig 8 1 Firmware update menu 8 2 Interface Setting The soft menu Interface enables you to select the settings for VCP Virtual COM Port 1 USB General Instrument Settings 1 Ethernet IP address sub net mask etc and 1 IEEE 488 GPIB interface GPIB address Select the respective interface for the communication via respective soft menu key Set the required interface para meters via soft menu item Parameter Please refer to chap ter 9 Remote Control via Interfaces for more information about the used Interfaces 8 3 Trigger Settings See chapter Instrument Functions for a description of the trigger menu 8 4 Default Settings The soft menu key Default Settings allows you to load the factory default settings 8 5 General Settings Misc Device Infos This soft menu key allows you to retrieve instrument infor mation such as serial number software version etc Device Infos Serial No 018469199 Device name Device Build 2476 2013 05 24 15 Front Controller O19 Software 00 000 sound OS Board O00 Software OxSb HOFS1 Ethernet
7. sound when the value exceeds or falls below the set limits 3 7 Storing Data The HMC8012 multimeter can store two different types of data 1 Instrument settings 1 Screen displays Out of these data types screen displays can only be stored on a USB stick Instrument settings can be stored on a USB stick or internally in the instrument to non volatile storage media Press the key SAVE RECALL to open the store and load menu The soft menu Device Settings allows you to load or store instrument settings Select the submenu Save to store the current instrument settings Select the storage location and the file name then press the soft menu key Save to save the current instrument settings This file may be reloaded at a later time The menu item Default Settings in the main menu also al lows you to load the factory default settings 36 4 Setting Parame ters Each function and operating mode of the multimeter can be selected with the keys on the front panel of the instrument Use the respective function key to select the measurement function An active measurement function 15 highlighted by an illuminated white LED Subsequent set tings refer to the selected measurement function pi 8 DC V SETUP 5 ESC DC CAP 2 ENTER sall HELP HOLD TRIG SHIFT H H D BH H H NULL Fig 4 1 Numeric keypad and editing keys 4 1 Soft Menu Keys The soft menu keys on the upper right of the screen allow you to use th
8. 00s Internal 250 5 50 000 External defined by USB stick capacity Main 2nd Time Stamp USB 2 0 TMC and CDC VCP Ethernet 10 100 LXI in Preparation IEEE 488 GPIB optional SCPI compatible with Agilent 34401A and 34410A Reading Rates Function Setting Resolution Display Reading Additional Specifications Rates DC voltage per sec Measuring Method Sigma Delta analog digital converter AC Voltage slow 93 4 400 000 Input Resistance gt 10 GQ selectable for ranges 400 mV 4V 111 1 SE 6 6 W 10 MQ on all ranges Fast 4 3 4 40 000 200 CMRR 120dB for VCM lt 500V unbalance in the DC Voltage Slow 5 3 4 400 000 5 LO line and 5 measurements second Medun 4 3 4 40 000 10 ge Ee 46 19 2 Input current 60 pA at 25 C AC Current Slow 5 3 4 200 000 5 Overload protection 1000V for all ranges Medium 44 20 000 10 AC voltage Fast 4 3 4 20 000 200 Measuring Method AC coupled True RMS measurement DC Current Slow 5 3 4 200 000 2 Input Resistance 1 MQ parallel lt 100 pF on all ranges Medium 4 3 4 20 000 10 Crest Faktor Max 10 0 5 additional measurement 445 20 000 200 uncertainty Resistance Slow 5 3 4 400 000 5 CMRR gt 60dB 1 kQ in the LO line and frequency 2 wire Medium 4 3 4 40 000 10 Fast 4 3 4 40 000 50 Overload protection 750 Vrms for all ranges Szen Sp Zem ees z a SE Se 4 wire Medium 4 3 4 40 000 10 Shunt Resistance GC SE at 200 mA chatten Fast 43 4 See Overload prot
9. 35 38 43 ADC rate 39 41 43 Alternating Voltage 35 Auto Range 35 B Bitmap 44 C cable offset 35 39 capacity 34 40 continuity testing 40 41 D DC voltage 30 34 35 Diode Testing 40 E Ethernet 46 50 file format 42 44 Firmware 45 four wire measurement 35 39 Frequency 32 39 frequency display 39 G GPIB 47 GPIB address 45 GPIB interface 45 input frequency 38 39 instrument information 45 instrument settings 34 30 43 interface 34 44 45 46 47 K keypad 34 35 36 42 46 knob 34 35 30 0 00 59 40 41 45 46 L limits 32 35 36 42 Logging 42 43 logging menu 41 42 M main measurement value 35 36 37 38 39 40 42 43 Maintenance 31 measurement categories 32 measurement interval 41 42 measurement rate 39 40 41 measurement time 39 Measuring category 32 O OVER RANGE 35 37 42 P power display 43 Product Disposal 33 R reference value 38 39 repair 31 resistance 31 34 3b 38 39 40 resistance measurement 31 35 39 RMS 35 38 43 RMS values 35 38 S Safety 30 safety class 32 screen displays 36 second measurement value 35 37 Statistic 34 35 36 42 Statistic functions 35 42 Store 36 43 44 treshold settings 41 trigger mode 41 two wire measurement 35 39 40 U USB 34 36 42 43 44 45 46 47 USB stick 36 42 43 44 45 V VCP 45 46 Virtu
10. A two wire measurement only requires the COM and V connectors A four wire measurement also requires the LO HI connectors SENSE After connecting the cables and connecting with a resis tance press the key The resistance value will show on the display During a resistance measurement the cable resistance cable offset requires particular attention Espe cially for small resistances which may be close to the cable offset is recommended to zero the measurement section Fused 10A resistance 2 wire Q Fig 5 4 Measuring resistance 2 wire A zero measurement is also called a relative measurement i e each measurement value indicates the difference be tween a saved zero value and the input signal 39 Instrument Functions resistance 4 wire 02 Fig 5 5 Measuring resistance 4 wire In this case It is necessary to short circuit the measurement cables and then press the NULL key This triggers the offset correction of the entire measurement section This value will be shown on the display below the main measurement value The line resistance of the measurement cable con tact resistances and thermoelectric voltages between diffe rent metals have been intentionally eliminated by this offset correction The compensation values will not be stored after the HMC8012 has been switched off and have to be redetermined In addition you may also enter the NULL value numerically or via knob On page 2 2 of the Q mai
11. DIGITAL Multimeter ER HMC8012 User Manual HMC80 12 DIGITAL MULTIMETER Test amp Measurement Benutzerhandbuch User Manual 3 HMC8012 Brief Introduction The following chapter is an introduction to the most impor tant HMC8012 multimeter features and settings allowing you to use the measurement instrument promptly A more detailed description of basic operating steps is given in the manual 3 1 Setting Parameters Each function and operating mode of the multimeter can be selected with the keys on the front panel of the instru ment Use the respective function keys to select basic func tions such as voltage current or resistance measurement Advanced functions are managed by use of soft menu keys to the right of the display Pressing the SHIFT key activates the numeric keypad 3 2 Measuring a Direct Alternating Voltage An example for a basic measurement that can be per formed with a multimeter is the measurement of a DC voltage for instance The following measurement example shows the individual steps to perform this measurement effectively with the HMC8012 A DC power supply unit e g the HMP2030 is used To measure a DC voltage you can connect a power supply unit to the HMC8012 multimeter via silicon test leads for instance Use the COM and V connectors on the bottom right Once the DC V key on the front panel of the instru ment is used the DC voltage value will be shown on the multimeter display
12. al COM Port 45 voltage value 35 38 W Warranty 31 Z zero measurement 35 38 39 Zero Point 35 zero value 35 39 Appendix 51 H A AMEL Instruments A Rohde amp Schwarz Company be 6 1 2 Seis o gt te 6 SS Bee Vs EI H LE 5 888 age Ke e Segen es sep WARZ HMO3004 Series if K ten DMB MIXTO Fe pont mem mem nem s S ee ee ow e e ee OH DECH 8 19 881 um mmm mmm eg cb a geil ann Cil i EEEE DH nooo i dei value instruments com
13. at gt 5A is 30 seconds followed by a pause of gt 30 seconds 4 At 250 V maximum AC Specifications AC Accuracy in of reading of range Function Range Frequency 1 Year 23 C 5K Temp Coefficient 0 18 C 28 55 C AC Voltage 2 400 000 mV 10 Hz 20 Hz 3 0 0 05 0 01 0 01 4 00000 V 20 Hz 45 Hz 1 5 0 05 0 01 0 01 40 0000 V 45 Hz 20 kHz 0 3 0 05 0 01 0 01 400 000V 20 kHz 50 kHz 1 0 0 05 0 02 0 01 750 00 V 6 50 kKHz 100 kHz 3 0 0 05 0 05 0 01 AC Current 20 0000 mA 20 Hz 40 Hz 1 5 0 05 0 01 0 01 200 000 mA 40 Hz 1 kHz 0 5 0 05 0 01 0 01 2 00000A 1 kKHz 5 kHz 1 5 0 05 0 01 0 01 10 0000 A4 5 kKHz 10 kHz 3 2 5 0 05 0 01 0 01 Notes 1 240 000 480 000 counts exept in 750V and 10A range 2 Specifications are for sinusoidal curves Input impedance is 1 MQ parallel lt 100 pF 3 Except 10A range 4 Maximum current load at gt 5A is 30 seconds followed by a pause of gt 30 seconds D AtZ 50 maximum 6 For ACV measurements and frequencies above 50 kHz the user is required to choose an appropriate measurement range Frequency Counter Specifications Frequency Accuracy in of reading Function Range AC Voltage 2 all ranges AC Current 2 20mA 200mA 10A Anmerkungen 1 Display of frequency available as 2nd measurent for main functions ACV and ACI Frequency 1 Year 23 C 5K 5 Hz 700 kHz 0 01 5 Hz 10 kHz 0 01 b Hz 5 kHz 0 01 2 Input sensitivity gt 7 5 of full scale 5 Hz 400 kHz resp gt
14. d USB active USB Display Hardware 0 Software 01 000 PAGE 112 Fig 8 2 Device Infos Date amp Time The soft menu key Date amp Time allows you to set the time and date and add a date and time stamp to printouts and saved data records Ihe user can reset the date and time Date and time can be set via knob The respective soft menu Item 15 activated when it is marked In yellow Press Save to accept the date and time parameters SOUND The HMC8012 offers the option to issue a signal in the event of an error or simply as a control measure This signal can be activated On or deactivated Off via soft menu key Error Beep or Control Beep Display The soft menu Display and the soft menu key Backlight allows you to set the screen intensity via knob from 10 to 100 Key Brightness The soft menu key Key Bright allows you to set the key brightness via knob from 0 to 100 45 General Instrument Settings Device Name In this menu you can select an instrument name Pressing the soft menu key DEVICE NAME opens a keypad Use the knob to select the letters You can confirm each letter via ENTER key SHIFT Press the soft menu key ACCEPT to confirm the entered instrument name 46 9 Remote Control via Interfaces As a standard feature the HMC8012 is equipped with a built in interface card which includes an Ethernet and a USB connection To enable communication the selected interface and the respec tive setti
15. e bot tom right Once the DC V AC V key on the front panel of the instrument is used the DC or AC voltage value will be shown on the multimeter display Please note that for an AC measurement RMS values will be shown on the display In addition it is possible to show a second function 2nd on the display The soft menu key 2nd Function and the knob allow you to select AC DC dB or dBm The se lected function is shown above the main measurement value display The menu display changes depending on the selected second function The soft menu key Remove 2nd allows you to hide the second function from the display You can select the option Slow Medium or Fast via soft menu key AC Filter and knob This applies to a low pass filter A lower setting Slow ensures more stable measure ment values However the measurement Is slow and signal elements of higher frequency will be attenuated Depen ding on the input frequency this function will smoothen the displayed value The setting Medium is saved as default value Select the setting Slow for an input frequency of lt DOKHz and select Fast for a setting of gt 1kHz To compensate for the line resistance of measurement cables it is necessary to short circuit the measurement cables and press the NULL key This triggers the offset correction of the entire measurement section This value will be shown next to the soft menu key NULL and on the display below the main measurement value
16. e color depth and the type of compression The quality of the various formats is identical for the multimeter graphics You can choose from the following file formats in the soft menu Format BMP Windows Bitmap Format PNG Portable Network Graphic Use the soft menu key Color Mode and the knob to select between Grayscale Color and Inverted If Grayscale is selected the colors are converted to gray scales when the data is stored if Color is selected the data is stored as it displays in the screen and if Inverted is activated data will be stored in color with a white back ground If you press the key Save the current screen will be saved Immediately to the selected storage location with the selec ted name and format 44 The soft menu key Print allows you to print a screenshot immediately to a connected printer e g PCL or PCLX as printer language If a printer is detected the soft menu key Print will no longer be grayed out The free software HMScreenshot software module of the HMExplorer soft ware enables the transfer of screenshots in bitmap or PNG format from the HMC8012 via interface to a connected PC where the screenshots may then be saved or printed For additional information on the software refer to the internal HMExplorer help at www hameg com Pressing and holding the HELP key allows you to save a screens hot to a connected USB stick 8 General Instru ment settings Important general sett
17. e function Above Below Threshold a measurement value is not cap tured until the current value falls below or exceeds the set treshold If the instrument triggers permanently the label Irig will be displayed on the upper right of the screen MODE A MAIT O MODE Continue Fig 5 10 Trigger menu Auto Depending on which settings for the time interval and the number of measurement values to be captured have been confirmed in the trigger menu these settings will be synchronized with the logging menu see chapter 6 Mathematical Functions 41 Mathematical Functions 6 Mathematical Functions In addition to the basic functions of the multimeter mathematical functions are also available These can be accessed by pressing the MEAS key on the front panel of the instrument Tab 6 1 describes which mathematical functions can be used with which measurement functions 6 1 Statistic function functions Stats Limits HOLD NULL DE Vv e AC V e 30 1 AC 3 6 e CAP SENSOR 9 Tab 6 1 Measurement functions with possible math options The soft menu Stats allows the user to activate the statistic functions Min Max Mean StdDev Pk to Pk Count Use the soft menu key STATS to activate On or deactivate Off statistic values The statistic functions will be dis played below the main measurement value Main You can use the soft menu
18. e if the measurement of AC voltage or AC current is activated Otherwise the function is grayed out Documentation Storage and Recall Documentation Storage and Recall The multimeter HMC8012 enables users to store all screen shots and user settings Instrument settings may be saved internally This data can also be stored on a connected USB stick Screenshots may only be stored on a USB stick You can access the main menu to store and load functions by pressing the SAVE RECALL key 7 1 Instrument Settings Use the soft menu Device Settings to save current in strument settings and to load previously saved settings STORAGE Internal FILE MAME 1 SET COMMENT Fig 7 1 Menu for storing instrument settings Press the soft menu key Save to open the Save menu You can use the soft menu key Storage to select a possible location Internal or Front where you would like to save the instrument settings Selecting the respective storage location and confirming the selection via soft menu key Ac cept opens the file system manager The FILE NAME can be changed or adjusted to the corresponding setting SET is the default label You can use the soft menu key Com ment to enter a comment which will be displayed in the file manager footer once a file has been selected Instrument settings are saved in the HDS format binary The format may not be changed The option Save allows you to store the settings In
19. e shown menu field in the display Use the numeric keypad or the knob to set the respective selec ted parameter If a menu field has been selected via soft menu keys this function will be marked in yellow and will be activated to set the parameter and function If a spe cific setting makes an instrument setting unavailable the respective soft menu key will be deactivated and the label will be displayed in gray 4 2 Numeric Keypad The easiest way to enter a value precisely and promptly is to use the numeric keypad Pressing the SHIFT key activa tes the numeric keypad When entering a numeric value via keypad you can accept the entry by pressing a soft menu key with the corresponding unit Before confirming the parameter unit you can delete any value that has been entered incorrectly by pressing the key lt SHIFT SETUP key The ESC key allows you to cancel the operation to en ter parameters This will close the editing window 4 3 Display of Measurement Values The HMC8012 multimeter includes a brilliant TFT color display with b 3 4 digits The display can show up to 3 measurement values simultaneously The display of the third measurement value Is intended for the display of mathematical functions such as statistic or limit display The signal displays indicate the measurement units and the operating environment of the multimeter Figure 4 2 shows an overview of the screen layout Local Log Inter Trigger Remote ging face so
20. ection Fuse F10H250V on the front panel Frequency Slow 6 999 999 1 Resistance Medium 5 09909 10 Measuring Method 2 wire and 4 wire Fast 4 9 999 100 Overload protection 1000 V for all ranges Diode 4 3 4 40 000 10 Continuity Continuity 4 3 4 40 000 200 Measuring Method 1 mA constant current Temperature 4 999 9 10 Threshold value Response Time Overload protection Diode Test Measuring Method Threshold value Response Time Overload protection Temperature Measuring Method Sensor types Connection Overload protection Math Functions Statistics Adjustable in 19 steps 200 measurements second 1000 V 1 mA constant current Adjustable in 10 mV steps 10 measurements second 1000 V Resistance measurement with platinum sensor PT100 PT500 PT1000 2 wire 4 wire 1000 V Accessories supplied Line cord printed operating manual HZ15 Silicon test lead with safety connector and test probe 1m black red Software CD Min Max Average Standard deviation Recommended accessories HZ812 P1100 Temperature probe 2 wire HZ887 PI100 Temperature probe 4 wire HZC95 19 rackmount kit 2RU for HMC series Relative measurement NULL key offset via keyboard dB Reference level via keyboard or NULL key dBm Reference impedance 50 75 6000 or freely selectable Logarithmic functions 49 Appendix 11 Appendix 11 1 List of Figures Fig 1 1 Fig 1 2 Fig 1 3 Fig 1 4 Fig 2 1 Fig 2 2 Fig 4 1 Fig 4 2 Tab 4 1 F
21. ed In addition you can activate ON or deactivate OFF an error tone soft menu key BEEPER which will sound when the value exceeds or falls below the 561 limits 6 3 Recording Data Logging The soft menu LOGGING allows you to start the capture of measurement values and to select various settings Use the soft menu key LOGGING to activate ON or deactivate Off the capture and the storage of measurement values Use the soft menu Storage to select the storage location Internal USB stick the file name File Name and the file format CSV TXT The soft menu key Interval and the knob allow you to select a measurement interval The measure ment interval describes the time between the recorded measurements For instance if the function Interval is set to 2 all 2s will be included in the measurements The soft menu MODE offers three different logging modes Select the function U if you intend to perform an infinite data capture The limiting factor in this context is the size of the internal storage maximum of 50 000 measurement points or of the connected USB stick If the function N is Depending on which settings for the time interval and the number of measurement values to be captured have been confirmed in the logging menu these settings will be synchronized with the trigger menu see chapter 5 Instrument Functions activated the soft menu key Count and the knob enable you to set the number of measurement values to be captu
22. egrated web server Enter the IP address in the browser s address bar http xxx xxx xxx Xxx This will open a window Including the instrument type and the serial number HAMEG Instruments 169 254 120 215 lt Goog HAMEL Instruments e 8661 HAMEG Site Support Contact Knowledge Base Device Device Information Settings Security Device Model HMC8C12 LN Manufacturer HAMEG Serial Number 000000000 Descripion HAMEG HMC8012 000000000 Hostname TEST MAC Address 00 04 A43 BC E6 56 TCP IP Address 169 254 120 215 Firmwareversion 00 07 VISA Device Address String TCPIPO 169 254 120 215 5025 SOCKET Device identification Enable Fig 9 2 Web server 9 3 IEEE 488 2 GPIB In addition to the GPIB functions which are available via USB TMC class the HMC8012 Is optionally available with an integrated GPIB interface This solution is particularly attractive for customers who already have an existing GPIB environment With minimum efforts an old instrument can be replaced by a HMC8012 model Remote Control via Interfaces Configure the settings in the HMC8012 for all necessary parameters after you select IEEE488 as interface and press the soft menu key Parameter The optional IEEE 488 interface GPIB can only be factory fitted as it is necessary for this purpose to open the instrument and break the guarantee seal 47 Specifications 10 Specifications
23. ft menu keys Trig r Range Up Range Down 2nd Function 4 Page 112 VY N 3 amp SChWARZ AME 4 A Display for math function e g statistic Range 2nd Second measurement value 2nd Function Range Main Main measurement value Zero measurement Null Fig 4 2 Screen layout 4 4 Displaying Several Measurement Values The HMC8012 offers the option depending on the selected measurement function to simultaneously show multiple measurement values on the display The main measure ment value Is labeled as Mam A second measurement value can be activated via soft menu key 2nd Function depending on the measurement function If you press the soft menu key 2nd Function you can use the soft menu key SELECT and the knob to select a second measurement value The second measurement value 2nd will be dis played in blue above the display of the main measurement value Main If you select the option None via knob the second measurement value will be deactivated 2nd secondary measurement value Main main measure DCV ACV DCI ACI Fre dB dBm ment value quency DC V e 6 2 ACV Ei DC e AC a e Tab 4 1 Dis
24. ig 5 1 PIG Ga 2 FIG 3 3 Fig 5 4 Fig 9 0 Fig 3 0 Fe 23 7 1 7 er 3 02 Fig 5 10 Fig 6 1 Fig H Fig 7 2 rid SCH Fig 8 2 aer SCH Fig 9 2 Operating 08 10 8 30 Rear panel of the HMC with voltage selector and CONNEC OTS E NEE EEN EE EEN EE oe Connectors on the front panel of the INSUUIMENL cet eeacaceadced Hag EEN SE OZ Product labeling in accordance with EE EE 33 Front panel of the HMC 8012 34 Rear panel of the HMC 8012 34 Numeric keypad and editing keys 36 Sie e E EE 3 Displaying Several Measurement Values ER Measuring a DC or AC voltage 38 Measuring a DC or AC current 39 Measuring frequency 0000 39 Measuring resistance 2 wire 39 Measuring resistance 4 wire 40 Measuring the capacity 40 2 wire sensor measurement temperature 40 4 wire sensor measurement temperature 41 Reie d e dE 4 Trigger menu Auto 4 Logging menu setting 04 42 Menu for storing instrument settings 43 screenshot 6 44 Firmware update menu 45 Device IOS 4 0 0 0 620 Feud dock Maw Maem don 45 6 56 05 3 3 4 Web Server 0 ee 4 11 2 Glossary A accuracy in measurements 38 39 40 AC Filter 38 39 43 AC voltage 34
25. ings such as basic settings or in terface settings may be selected via SETUP key Press the key to move up one level 8 1 Update Instrument Firmware Help Firmware and help if available are packed in one ZIP file Depending on the required extent of the update the ZIP file might include either all updates or simply the instrument firmware for instance After downloading the ZIP file un pack the data to the base directory of a USB stick Then connect the USB stick with the USB port of the multimeter and press the SETUP key Press the soft menu key Update to access the update menu Selecting this menu item opens a window displaying version number date and build information of the currently installed firmware Pressing the soft menu key Firmware to update the instru ment firmware will result in a search for the corresponding file on the USB stick The information for the new firmware to be Installed will then be displayed on the stick below the row labeled NEW The version number will be displayed in red in case the existing firmware on the instrument is identical to the latest version otherwise the version num ber will be shown in green Only if this is the case press the soft menu Execute to start the update To update the help select the menu Item Help in the update menu The information window will now display all installed langua ges the date and relevant information about the languages available on the stick The
26. iting for the TRIG key to be pressed again and is consequently not triggering at the moment Single In the trigger mode Single the soft menu key Interval and the knob allow you to select a measurement interval The measurement interval describes the time between the recorded measurements For instance if the function Inter val is set to 2 all 2s will be included in the measurements In addition the soft menu key Count and the knob enable you to set the number of measurement values to be captu red Pressing the TRIG key starts the capture of measure ment values For instance if you set an Interval of 2s and a Count of 5 5 measurement values will be captured in inter vals of 2s During the capture of the measurement values the LED for the TRIG key is blinking and the label Trig is displayed on the upper right of the screen Alternatively the label Armed indicates that the instrument is waiting for a trigger e g waiting for the TRIG key to be pressed again and is consequently not triggering at the moment Auto Default Setting In the trigger mode Auto the instrument does not wait for a specific event Instead it performs permanent measure ments The number of measurements is dependent on the selected ADC rate In addition you may define a threshold The measurement value display changes depending on the selected treshold settings If the function Continue is activated the display runs continuously For th
27. key MEAS to determine how many measurement values are to be Included in the statistic You can select the number of measurement values via knob or via numeric keypad SHIFT key The statistic may be performed on a maximum of 50 000 measurement values If MEAS is set to the statistic will be performed on all measurement values If MEAS is set to for instance the statistic will be performed on measurement values The soft menu key RESET resets the statistic Additionally the soft menu AUTO REST is available If the Auto Reset function is activated ON the statistic measurement points Count will be not reset in Auto Range mode If the instrument shows OVER RANGE on the display the statistic measurement values can be not captured This values will be dis played as INVALID COUNT in red 6 2 Measuring Limits Limits The soft menu LIMIT allows you to select the HIGH LIMIT and LOW LIMIT for a measurement Based on these li 42 mits a test can be evaluated as passed or not passed The limits can be activated ON or deactivated OFF via soft menu key LIMITS The limits will be displayed below the main measurement value Main If a value falls below or exceeds the limits during a test it will be reflected by the color display of the measurement value If the limits are ob served the measurement value is displayed in green If the value falls below or exceeds the set limits the limit value will be displayed in r
28. n processed correctly However the communication via VCP requires analysis and polling mechanisms within the cont rolling software which may significantly strain the interface of the measurement instruments The TMC status registers solve this problem with the USB TMC in the same manner as is the case with the GPIB Interface for the hardware namely via corresponding control lines 9 1 Ethernet In addition to the USB interface the interface card includes an Ethernet interface Select Ethernet as interface and press the soft menu key Parameter to then determine the settings for the necessary parameters directly within the DMODE MAN MAC O0 04 45 cf 2 f6 F Subnet mask 255 255 255 000 Gateway OOO OO L H wW Port DOW WeI L1 Port 2 Suto D loo Mbps Full Duplex Link IF Status Transfer Fig 9 1 Ethernet Settings multimeter You can specify all parameters and assign a fixed IP address You can also assign a dynamic IP address with the activated DHCP function Please contact your IT management to configure the settings properly If DHCP is used and the system cannot assign an IP address to the HMC8012 for instance if no Ethernet cable is connected or the network does not support DHCP it may take up to three minutes until a timeout allows the interface to be configured again If the device has an IP address it can be accessed via web browser at this IP since the Ethernet interface inclu des an int
29. n menu you can use the soft menu key Mode to distinguish between 2 wire operation 2w and 4 wire operation 4w 4w connect SENSE cables The soft menu key ADC Rate and the knob allow you to set the display refresh rate for the 2 wire operation 2w to Slow 5 measurements per second Medium 10 measure ments per second or Fast 50 measurements per second For the 4 wire operation 4w you can set the display re fresh rate to Slow 5 measurements per second Medium 10 measurements per second or Fast 25 measurements per second The maximum accuracy in measurements 5 achieved when using the setting Slow ADC Rate 5 5 Measuring a Capacity 10 measure a Capacity you can connect a capacitor with the HMC8012 multimeter via silicon measurement cables and clamp type test probes for instance Use the COM and V connectors on the bottom Once the CAP key on the front panel of the instrument is used the capacity value will be shown on the multimeter display To compensate for the line resistance of measurement cables it is necessary to short circuit the measurement cables and press the NULL key This triggers the offset correction of the entire measurement section This value will be shown next to the soft menu key NULL and on the display below the main measurement value The line resistance of the measurement cable contact resistances 40 Fused 10A capacity Fig 5 6 Measuring the capacity and thermoelec
30. nce measurement connect measurement cables with clamps to the respective connectors on the front panel of the instrument A two wire measurement only requires the COM and V connectors A four wire measurement also requires the LO HI connectors SENSE After connecting the cables and connecting with a resis tance press the key The resistance value will show on the display During a resistance measurement the cable resistance cable offset requires particular attention Espe cially for small resistances which may be close to the cable offset it is recommended to zero the measurement section A zero measurement is also called a relative measurement i e each measurement value indicates the difference bet ween a Saved zero value and the input signal In this case It is necessary to short circuit the measurement cables and then press the NULL key This triggers the offset correction of the entire measurement section This value will be shown on the display below the main measurement value The line resistance of the measurement cable con tact resistances and thermoelectric voltages between diffe rent metals have been intentionally eliminated by this offset correction The compensation values will not be stored after the HMC8012 has been switched off and have to be redetermined 3 6 Statistic Measuring Limits In addition to the basic functions of the multimeter ma thematical functions are also available These can be ac cessed by
31. ngs in the instrument must be identical to the selections for the PC 9 2 USB All currently available USB drivers have been fully tested and released for Windows XP Windows VISTA and Windows 7 32 64 bit In addition to a LAN interface the HMC8012 includes a USB device port For this interface the user can select if the instrument is accessed via virtual COM port VCP or via USB TMC class The traditional version of the VCP allows the user to communicate with the HMC using any terminal program via SCPI commands once the corres ponding Windows drivers have been installed hese com mands are generally compatible with the Agilent multime ters 34401A and 34410A In addition you may use the free HAMEG software HMExplorer This Windows application offers HMC8012 instruments a terminal function the op tion to create screenshots and to sort the measured data storage A modern alternative to the virtual COM port VCP is the control via USB TMC class TMC stands for Test amp Mea surement Class which indicates that the connected measurement instrument can be recognized without special Windows drivers if VISA drivers are installed and that It can be used directly in corresponding environments The GPIB interface serves as model to the structure of the TMC design A major benefit of the USB TMC class is that by sampling specific registers the user can determine if commands have been terminated and if they have bee
32. playing Several Measurement Values 4 5 Automatic Manual Selection of the Measure ment Range Depending on the selected measurement value you can change the measurement range via soft menu keys Range Up or Range Down Pressing Range Down will switch to the next lower measurement range pressing Range Up will switch to the next higher measurement range This will deactivate the automatic selection of the measurement range Auto Range Setting Parameters If the function Auto Range Is activated the measurement instrument automatically selects the optimal measurement range Activating the automatic mode enables you to switch to a higher measurement range when 90 of the respective range end value have been reached Operation will switch to the lower range if the value falls below 10 of the range end value If the set measurement value is too large whether the measure ment range is selected manually or automatically the display shows the message OVER RANGE 37 Instrument Functions 5 Instrument Functions 5 1 Measuring a DC AC Voltage A basic measurement that can be performed with a multi meter is the measurement of a DC or an AC voltage V Q 4h max 1000 Vpk Fused 10A voltage source AC DC Fig 5 1 Measuring a DC or AC voltage To measure a DC or AC voltage you can connect a voltage source to the HMC8012 multimeter via silicon test leads for instance Use the COM and V connectors on th
33. pressing the MEAS key on the front panel of the Instrument The soft menu Stats allows the user to activate individual Statistic functions Min Max Mean StdDev Pk to Pk Count Use the soft menu key STATS to activate On or deactivate Off statistic values The statistic functions will be displayed below the main measurement value You can use the soft menu key MEAS to determine how many measurement values are to be Included in the statistic You can select the number of measurement values via knob or via numeric keypad If MEAS is set to 0 the statistic will be performed on all measurement values If MEAS is set to for instance the statistic will be performed on 7 measurement values The soft menu key Reset resets the Statistic 35 HMC8012 Brief Introduction The soft menu Limit allows you to select the High Limit and Low Limit for a measurement Based on these limits a test can be evaluated as passed or not passed The limits can be activated On or deactivated Off via soft menu key LIMITS The limits will be displayed below the main measurement value If a value is exceeded or falls below the set limit during a test it will be reflected by the color display of the measurement value A measurement value that exceeds or falls below a limit is marked in red a measurement value within a limit is marked In green In addition you can activate On or deactivate Off an error tone soft menu key Beeper which will
34. r the function dBm the reference value is 1mW and is often used for RF signal measurements If the dBm func tion is activated the multimeter performs a measurement and calculates the power supplied to a comparator resis tance The reference value Ref Value in this case is 50 75 or 600 Q In addition you can set a user defined value User either numerically or via knob 5 2 Measuring a DC AC Current To measure a DC or AC current you can connect a power Supply unit to the HMC8012 multimeter via silicon test leads for instance Use the COM and A connectors on the bottom Once the DC AC key on the front panel of the instrument is used the DC or AC current value will be shown on the multimeter display In addition it is possible to show a second function 2nd on the display The soft menu key 2nd Function and the knob allow you to select AC DC V dB or dBm The se lected function is shown above the main measurement value display The menu display changes depending on the selected second function The soft menu key Remove 2nd allows you to hide the second function from the display To compensate for the line resistance of measurement cables it is necessary to short circuit the measurement cables and press the NULL key This triggers the offset F10H250V Fused 10A current source AC DC Fig 5 2 Measuring a DC or AC current correction of the entire measurement section This value will be shown next to the
35. rence value numerically or via knob If a reference value is defined you can reset the pre viously selected reference value via soft menu key Null For the function dBm the reference value is 1mW and is often used for RF signal measurements If the dBm func tion Is activated the multimeter performs a measurement and calculates the power supplied to a comparator resis tance The reference value Ref Value in this case is 50 75 or 600 Q In addition you can set a user defined value User either numerically or via knob Instrument Functions 5 3 Measuring Frequency The frequency display can be added in the main function AC V and AC as the second measurement function 2nd Gina LO HI A COM V 9 4 44 A max Seiad F10H250V Fused 10A frequency source Fig 5 3 Measuring frequency The measurement time can be set via soft menu key Gate Time The measurement time can vary between 10ms 100 ms and 1s and is shown below the frequency informa tion on the display The display refresh rate is dependent on the selected ADC rate in the AC V or AC mode For the setting SLOW the measurement rate of the frequency measurement is 1 measurement per second for MEDIUM it is 10 measurements per second and for FAST it is 100 measurements per second 5 4 Measuring Resistance For the resistance measurement connect measurement cables with clamps to the respective connectors on the front panel of the instrument
36. soft menu key NULL and on the display below the main measurement value The line resistance of the measurement cable contact resistances and thermoelectric voltages between different metals have been intentionally eliminated by this offset correction The Compensation values will not be stored after the HMC8012 has been switched off and have to be redetermined In addition you may also enter the NULL value numerically or via knob The soft menu key ADC Rate and the knob allow you to set the display refresh rate to Slow 5 measurements per se cond Medium 10 measurements per second or Fast 200 measurements per second The maximum accuracy in measurements is achieved when using the setting Slow ADC Rate You can select the option Slow Medium or Fast via soft menu key AC Filter main function AC and knob This applies to a low pass filter A lower setting Slow ensures more stable measurement values However the measure ment is slow and signal elements of higher frequency will be attenuated Depending on the input frequency this function will smoothen the displayed value The setting Medium is saved as default value Select the setting Slow for an input frequency of lt bOkHz and select Fast for 8 set ting of gt 1 KHz If the second function 2nd Function is activated dB or dBm you have the option to define a reference value For the function dB the reference value is the current Ref Value You can set the refe
37. strument settings from a previous firmware version cannot be loaded with a new firmware version To reload stored preference files press the respective soft menu key to open the soft menu Load This open the file manager where you can use the knob to select the respec tive file 43 Documentation Storage and Recall Once the storage location and the respective settings file has been selected you can load the file by pressing the soft menu key Load 10 remove files that are no longer required you can use the knob to select the respective set tings file and remove it by pressing the soft menu key Re move File If a USB stick is connected you can also change or delete directories The menu item Default Settings also allows you to load the factory default settings 7 2 Screenshot The most important format to store information for docu mentation purposes Is the screenshot A screenshot Is an image file which shows the current screen content at the time that storage takes place Trig STORAGE S Front USE FILE MA ME f BIL 0002 olor amp Format Fig 7 2 Screenshot menu Screenshots may only be stored to a USB stick If a USB stick is connected you can also change create or delete directories Press Accept to confirm the location of the target directory The FILE NAME can be changed or adjusted to the corres ponding setting SCR is the default label The file format of a graphics file determines th
38. surement temperature yellow the respective function Diode or Continuity is activated F10H250V max SCH Fig 5 9 Diode testing For both functions you can define set a so called thres hold via soft menu key Threshold In addition the soft menu key Beep allows you to activate On or deactivate Off an acoustic signal to be used in case of a threshold violation For the diode testing the measurement rate 15 10 measurements and for the continuity testing 200 measure ments per second 5 8 Measuring with HOLD Function The HOLD function allows you to maintain the current measurement results on the display If you press the HOLD key white LED is illuminated the measurement result s will be frozen on the display Press the HOLD key again LED is off to deactivate the function 5 9 Trigger Function Pressing and holding the TRIG key or pressing the SETUP key submenu TRIGGER opens the trigger menu The soft menu key Mode and the knob allow you to select the respective trigger mode There are three different options to trigger a measurement Manual If the trigger mode Manual is selected press the key TRIG to start recording measurement values The TRIG key blinks while measurement values are captured Press the TRIG key again to stop the capture of measurement values Instrument Functions The TRIG key will stop blinking The label Armed indica tes that the instrument is waiting for a trigger wa
39. tric voltages between different metals have been intentionally eliminated by this offset correction The compensation values will not be stored after the HMC8012 has been switched off and have to be redetermined In addition you may also enter the NULL value numerically or via knob 5 6 Measuring Sensors PT100 PT500 PT1000 Sensor measurements can be performed with various tem perature probes The temperature probes HZ812 2w or A 600V max pk Fused 10A temperature 2 wire Fig 5 7 2 wire sensor measurement temperature HZ887 4w are available as optional accessories Depen ding on the type used you can select 2w or 4w with the respective soft menu key The soft menu key PT Type allows you to select PT100 PT500 or PT1000 as probe type The measurement value may be displayed in C K or F Unit To perform precise measurements it is necessary to com pensate for the measurement section with the NULL func tion especially for the two wire measurement PT sensors include a lead resistance which is typically indicated on the data sheet For an optimally adjusted measurement section It Is necessary to know the exact lead resistance The measurement rate in this case is 10 measurements per second 5 7 Continuity Diode Testing Pressing the key Sa opens the main menu for the diode and continuity testing If the soft menu key is marked in temperature 2 wire Fig 5 8 4 wire sensor mea
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