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User's Guide DM3068 Digital Multimeter

1. Type Range DCV 1100 V to 1100 V DCI 220 mA to 220 mA 2WR 0 Q to 110 MO 4WR 0 Q to 110 MO FREQ 0 Hz to 1100 kHz Press Done to finish the input of a pair of data and enter the following interface The icon F indicates the arithmetic for the data segment behind this data and before the next arithmetic mark The default arithmetic for the first data segment is Line and you can modify it using Edit Start Mark of the Current Data Segment Press dt to return to the upper level menu and create the second group of data in the same way From the second group of data on you can use the segment function to set the arithmetic for different data segment Define Meas SEG Press SEG gt OND Arith and select Line or Curve arithmetic type 2 30 User s Guide for DM3068 Chapter 2 Front Panel Operations RIGOL Line the calculated curve is point point tangential path having no curvature It applies to sensors having step variation in the data or having variation based on straight slope and better linearity within a certain area This arithmetic requires that the data segment contains at least 2 groups of reference data Curve the calculated curve is an approximate result that has a certain curvature It applies to data has unfavorable linearity This arithmetic requires that the data segment contains at least 5 groups of reference data Tip For some sensor the corresponding relation curv
2. Hold QE On Off f Press On Off to enable or disable the reading hold function When it is enabled the backlight of at the front panel starts flashing The settable sensitivity ranges are 0 0196 0 196 196 and 1096 and the default is 0 196 For example if you choose 0 196 the input signal into the multimeter is 5 V and the new reading will be displayed if three continuous readings exceed the range from 4 9975 V to 5 0025 V 2 62 User s Guide for DM3068 Chapter 2 Front Panel Operations RIGOL To Set the Trigger Parameters Press gt Set to enter the following interface Delay Slope S No The multimeter takes the specified number of readings each time a trigger signal is received Press S No and enter a desired number within 1 and 50 000 using the direction keys The default is 1 Delay User can set the delay time between the trigger signal and the every sample reading Press Delay to enter the following interface Auto the delay time in this mode is decided by a combination of the used measurement function range integration time and AC filter and other factors ZERO the delay time in this mode is 0 s e Manu the delay time in this mode can be set to any value within 0 s and 3600 s Slope This menu allows you to select an edge type for the pulse from the Ext Trig connector at the rear panel when using external or level trigger The multimeter will trigger on t
3. Auto Rng Rng Histor REL Y Make math operation advanced Users can perform math operation STA P F and REL on each measurement reading For REL operation the multimeter subtracts the pre specified value of REL from the actual measurement result and displays the result For details please refer to Math Operations View history data Up to 5000 latest measured data can be viewed Press History to enter the following interfaces Measurement FREQ Range 200mv Records 1 HistoG Update Save Measurement PERIOD Range 200mv Records 1 HistoG Update Save Press Info and use the up and down direction keys to view the measurement item measurement range number of values maximum minimum average and standard deviation Press List and use the up and down direction keys or the menu softkeys to view all the measurement results before the last update in table form User s Guide for DM3068 Chapter 2 Front Panel Operations RIGOL Press HistoG to view the histogram of the average AVG and standard deviation SDEV Press Update to update the Records Maximum Minimum Average and SDEV under Info and the display in List and HistoG Press Save to enter the store and recall interface at this point is illuminated You can save the current measurement data into internal memory or external USB storage device For details please refer to the introduction in Save and
4. 1 eeeeeee eee eeeese essen enean nnns l Safety Requirement sssssssssnsnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnan nannan nnmnnn lI General Safety Summary cds res polo te wy dips eta eoa et o D ARE ON ERR II Safety Terms and SyYMDO S iiie e nter rer rh er t er e e e VI General Care and Cleaning s seo or a RENE RIA Ve eoi 9 9 a VII Environmental Considerations sess VIII DM3068 OvVverview eere erroe neenon nnne nun u unu nu nuu na nuu una sua urnas ua uana IX Document Overview 2 rnanan aor naaar nne nu nuu senpa hana nun a aua n unas XI Chapter 1 Quick Start 1 eeereeeee nier ee eene nana unu n uana u naa u ass 1 1 General INSPSCUGH cias eos ette vore Oh ER Yer pa e Re ERRARE DIG ER 1 2 Haridle Ad stmerb ni ioo eser rt rete ted E PR pre Kv RST 2924 reU 1 3 Appearance and Dimensions ee ee eee eee ee 1 4 FrontPanel ivre eere t e tcm e or nc c P Ro perd dr DE o cs 1 5 ReariPanel sistere E Pen a e e at re nr vr c s 1 9 User Interfaces aor ede e i eerte ED ove eee rc ae P near 1 13 To Use the Multimeter for the First Time sesee 1 14 Measurement Connections x ee ee ee e K K 1 15 To Use the Built in Help System 1 18 To Use the Rack Mount Kit esarete t tr tert t E Rr t tv e 1 19 Kit Parts LISTS aos vo D b v e ORCHARD s 1 19 Installation LOO loss certe ree rh rib tete er ET ad 1 20 Installation SE Bea iode etch a Po es eu CO et
5. Press Update to update the Records Maximum Minimum Average and SDEV under Info and the display in List and HistoG Press Save to enter the store and recall interface at this point is illuminated You can save the current measurement data into internal memory or external USB storage device For details please refer to the introduction in Save and Recall 2 12 User s Guide for DM3068 Chapter 2 Front Panel Operations RIGOL 8 Hide the menu Press Hide to hide the operation menus for easier observation of the measurement result Press any softkey again to display the operation menus User s Guide for DM3068 2 13 RIGOL Chapter 2 Front Panel Operations To Measure Resistance Range 200 Q 2 KQ 20 kQ 200 kQ 1 MQ 10 MQ 100 MQ Max Resolution 100 uQ in 200 Q range Input Protection a 1000 V input protection is available in all ranges 10 overrange is available on all ranges DM3068 provides 2 wire 2WR and 4 wire 4WR resistance measurements When the measured resistance is lower than 100 kO the 4 wire resistance measurement is recommended to reduce the measurement error caused by test lead resistance and contact resistance between the probe and the testing point because these two resistances cannot be ignored any more compared to the measured resistance Operating Steps 1 Enable the 2WR 4WR measurement Press at the front panel to select 2WR 2 wire resistance 4WR 4 wire resistance
6. Chapter 2 Front Panel Operations RIGOL Preset Mode Preset mode applies to production lines for avoiding misoperations Press in any mode to enter the following interface from which you can choose a preset configuration from up to 10 groups Note the configurations in this interface correspond to the 10 groups of system configurations in the internal memory Ge gt Type gt Sys Setting Preset Select a Set Seti Set2 Set3 Set4 Seth p Preset Select a Set Set6 Set Set8 Set9 Set1 Press Setn n 1 to 10 if an effective configuration is stored in the storage unit corresponding to this key the beeper sounds and the instrument recalls the configuration stored directly if the storage unit selected is empty the instrument returns to the previous test state directly Press gt gt Setn the multimeter stores the current measurement configuration into the memory unit corresponding to the key using the set name Setn Besides you can recall or save preset configurations using function For details please refer to Save and Recall User s Guide for DM3068 2 37 RIGOL Chapter 2 Front Panel Operations Secondary Function Key The secondary function key is used to enable the dual display mode quickly store the current instrument settings in co ordination with and quickly enter the REL setting interface 1 Turn On the Dual Display This mode enables you to simultaneously
7. To use the RTD sensor set the measurement parameters according to the following steps 1 Set the RO Value Press RTD gt RO and enter a desired value within 49 Q and 2100 Q using the direction keys the default is 100 Q 2 Set the Temperature Coefficient Press RTD gt ALPHA and select a desired value from 385 0 00385 389 0 00389 391 0 00391 and 392 0 00392 3 Set the Connection Type The RTD lead usually uses 2 wire or 4 wire connection Press RTD and then press 2WR or 4WR to select the desired option then press mi to return to the upper level menu User s Guide for DM3068 2 35 RIGOL Chapter 2 Front Panel Operations THERM The THERM thermistor converts the temperature variation information into resistance variation information It is especially sensitive to temperature In this measurement the multimeter adopts Steinhart Hart approximate arithmetic and converts the resistance signal from the temperature sensor into the related temperature for displaying To use the THERM sensor you need to set the resistance parameter of the multimeter and select the connection mode 1 Set the resistance parameter Press THERM gt Type and select a desired value from 2 2K 2 2 KQ 3K 3 kQ 5K 5 kQ 10K 10 kQ and 30K 30 kQ 2 Set the connection type Press THERM and then press 2WR or 4WR to set the connection mode to 2 wire or 4 wire Press f to return to the upper level menu 2 36 User s Guide for DM3068
8. indicates an injury or hazard may immediately happen WARNING indicates an injury or hazard may be accessible potentially CAUTION indicates a potential damage to the instrument or other property might Symbols A occur on the Product These symbols may appear on the product A h Hazardous Safety Protective Chassis Test Voltage Warning Earth Ground Ground Terminal VI User s Guide for DM3068 RIGOL General Care and Cleaning General Care Do not store or leave the instrument in where the instrument will be exposed to direct sunlight for long periods of time Cleaning Clean the instrument regularly according to its operating conditions To clean the exterior surface perform the following steps 1l Disconnect the instrument from all power sources 2 Clean the loose dust on the outside of the instrument with a lint free cloth with a mild detergent and water When clean the LCD take care to avoid scarifying it CAUTI ON To avoid damages to the instrument do not expose them to liquids which are corrosive WARNI NG To avoid injury resulting from short circuit make sure the instrument is completely dry before reconnecting into a power source User s Guide for DM3068 VII RIGOL Environmental Considerations The following symbol indicates that this product complies with the applicable European Union requirements according to Directives 2002 96 EC on waste electrical and electronic equipment
9. 0 70 0 35 0 70 0 35 0 70 0 030 0 006 2 000000 mA 3Hz 5Hz 1 00 0 04 1 00 0 04 1 00 0 04 0 100 0 006 5 Hz 10 Hz 0 30 0 04 0 30 0 04 0 30 0 04 0 035 0 006 10 Hz 5 kHz 0 12 0 04 0 12 0 04 0 12 0 04 0 015 0 006 5 kHz 10 kHz 0 20 0 25 0 20 0 25 0 20 0 25 0 030 0 006 20 00000 mA 3Hz 5Hz 1 10 0 06 1 10 0 06 1 10 0 06 0 200 0 006 5 Hz 10 Hz 0 35 0 06 0 35 0 06 0 35 4 0 06 0 100 0 006 10 Hz 5 kHz 0 15 0 06 0 15 0 06 0 15 0 06 0 015 0 006 5 kHz 10 kHz 0 35 0 70 0 35 0 70 0 35 0 70 0 030 0 006 200 0000 mA 3 Hz 5 Hz 1 00 0 04 1 00 0 04 1 00 0 04 0 100 0 006 5 Hz 10 Hz 0 30 0 04 0 30 0 04 0 30 0 04 0 035 0 006 10 Hz 5 kHz 0 10 0 04 0 10 0 04 0 10 0 04 0 015 0 006 5 kHz 10 kHz 0 20 0 25 0 20 0 25 0 20 0 25 0 030 0 006 2 000000 A 3Hz 5Hz 1 10 0 06 1 10 0 06 1 10 0 06 0 100 0 006 5 Hz 10 Hz 0 35 0 06 0 35 0 06 0 35 0 06 0 035 0 006 10 Hz 5 kHz 0 15 0 06 0 15 0 06 0 15 0 06 0 015 0 006 5 kHz 10 kHz 0 35 0 70 0 35 0 70 0 35 0 70 0 030 0 006 User s Guide for DM3068 6 7 RIGOL Chapter 6 Specifications 10 00000 AIN 3 Hz 5 Hz 1 10 0 08 110 0 10 1 10 0 10 0 100 0 008 5 Hz 10 Hz 0 35 0 08 0 35 0 10 0 35 0 10 0 035 0 008 10 Hz 5 kHz 0 15 0 08 0 15 0 10 0 15 0 10 0 015 0 008 Additional Low Frequency Errors of reading Additional Crest
10. REL The REL operation result is displayed at the center of the screen Repressing REL under the main interface will close the REL operation The identifier REL disappears 2 56 User s Guide for DM3068 Chapter 2 Front Panel Operations RIGOL Tendency Graph The multimeter draws tendency graph of the measured data through which users can directly observe the variation of the measured data without other supplementary means This function is available for DCV DCI ACV ACI 2WR 4WR CAP FREQ PERI OD and SENSOR measurements Press Trend to enter the following interface The screen displays the MAX and MIN values of the measured data the drawing time of the tendency graph as well as the real time curve and tendency graph of the measured data The multimeter supports up to 999 hours 59 minutes and 59 seconds drawing time When the drawing time exceeds this limit the timer is reset and starts to time again but the waveform drawn is kept When the real time curve reaches the maximum display length it is compressed and added onto the tendency graph and the multimeter starts to draw new real time curve When the tendency graph reaches the maximum display length it is compressed into half to make sure that the compressed data on the real time curve can be added onto it continuously to form cumulative tendency graph j3 7932wv 000 05 33 Min 461 8596m Tendency curve Real time curve Press any soft menu at this moment t
11. 6 Ext Trig 8 RS232 10 Voltage Selector 5 VMC 7 USB Device 9 Power Fuse 11 Power Switch Figure 1 6 Rear Panel Overview 1 Current Input Fuse The multimeter uses two kinds of fuses for input protections of small and large current ranges The internal fuse of the multimeter provides 10 A maximum input protection for the large current range and when the input current exceeds 13 5 A the fuse will blow out while the current input fuse at the rear panel of the instrument provides 500 mA maximum input protection for the small current range and when the input current exceeds 650 mA the fuse will blow out The large current input fuse has been installed when the instrument left factory To replace the small current fuse please 1 Turn off the multimeter and remove the power 200mA Current Input Fuse AC 250V F500mA cord 2 Turn the fuse seat counterclockwise as shown in the figure using a straight screw driver and then pull out the fuse seat User s Guide for DM3068 1 9 RIGOL Chapter 1 Quick Start 3 Place a new specified fuse 4 Reinstall the fuse seat into the slot Note the large current fuse stands inside the multimeter and is not allowed to be replaced by users themselves If a new fuse is required please contact RIGOL 2 LAN Through this interface the multimeter can be connected to the network for remote control The multimeter conforms to LXI C standards it can be used in connection with other standard devices to qu
12. The setting is stored in volatile memory and will be cleared automatically at power off Default restore the reference resistance to 600 Q On enable dBm operation The multimeter then automatically goes to the measurement main interface as shown in the figure below The status bar displays dBm The dBm operation result is displayed at the center of the screen The current measurement reading and the reference resistance are displayed at the lower left corner and lower right corner of the screen respectively 2 54 User s Guide for DM3068 Chapter 2 Front Panel Operations RIGOL dB dB represents the relative value which is used in the REL operation of dBm value When enabled the multimeter calculates the dBm value of the next reading and subtracts the preset dB from this value and then displays the result dB 10 x Logio Reading Rage 1 mW dB preset Wherein Reading denotes the measured voltage and Rage denotes the reference resistance Press dB to enter the following interface from which you can use the direction keys to specify a value within 120 dBm and 120 dBm the unit is dBm The setting is stored in volatile memory and will be cleared automatically at power off Current calculate the dBm value on the basis of the reference resistance from the present dBm menu Default restore the dB preset value to 0 dBm On enable dB operation The multimeter then automat
13. WEEE and batteries X Product End of Life Handling The equipment may contain substances that could be harmful to the environment or human health In order to avoid release of such substances into the environment and harm to human health we encourage you to recycle this product in an appropriate system that will ensure that most of the materials are reused or recycled appropriately Please contact your local authorities for disposal or recycling information VIII User s Guide for DM3068 RIGOL DM3068 Overview DM3068 is a 6 digits dual display digital multimeter It is a perfect combination of basic measurement functions various math operations as well as any sensor measurement and can fulfill users requirements for high precision various functions and auto measurement DM3068 provides high resolution 256 x 64 monochrome LCD easy to use keypad layout and key backlight as well as operation prompts It supports RS232 USB LAN and GPIB interfaces USB storage device storage and remote control web and SCPI command Main Features Real 67 digits reading resolution Minimum integration time 0 006 PLC Dual display synchronously display two kinds of characteristics of the same signal Switch between Normal and Preset operation modes The Preset mode can quickly recall the preset configurations DC voltage measurement range 1050 V to 1050 V DC current measurement range 10 5 A to 10 5 A AC
14. r 2 Separte Set the display format of the data separator on the screen to r None or Space For example ACV i Auto 20H2 L Decimal point 199 999 mV Separator r Auto ACV Auto 20Hz 199 999 mV Decimal point lt Auto Separator Space 2 78 User s Guide for DM3068 Chapter 2 Front Panel Operations RIGOL To Set the Configuration Press gt System gt Cfg to enter the following interface Default 1 PwrOn Select a system configuration to be used at power on from Default and Last configuration at last power off This setting will be available at the next power on e The multimeter will always use DCV as the default measurement at every power on no matter Default or Last is selected 2 Default Restore the multimeter to factory defaults see Table 2 8 3 Switch Enable or disable the front power button The default status is OFF ON enable the front power button After turning on the power switch at the rear panel users need to press the power button at the front panel to turn on the multimeter OFF disable the front power button Users can directly start the multimeter by turning on the power switch at the rear panel However you can still turn off the multimeter by pressing the power button at the front panel Table 2 8 Factory defaults Parameter Factory Default Measurement Parameters Short circuit Resistance 10 Q
15. 0 0006 0 0005 0 0001 DC Voltage 20 00000 V 0 0020 0 0004 0 0030 0 0005 0 0040 0 0005 0 0005 0 0001 200 0000 V 0 0020 0 0006 0 0040 0 0006 0 0050 0 0006 0 0005 0 0001 1000 000 VIT 0 0020 0 0006 0 0040 0 0010 0 0055 0 0010 0 0005 0 0001 200 0000 uA lt 0 03 V 0 010 0 012 0 040 0 015 0 050 0 015 0 0020 0 0030 2 000000 mA lt 0 25 V 0 007 0 003 0 030 0 003 0 050 0 003 0 0020 0 0005 DC Current 20 00000 mA lt 0 07 V 0 007 0 012 0 030 0 015 0 050 0 015 0 0020 0 0020 200 0000 mA lt 0 7 V 0 010 0 002 0 030 0 003 0 050 0 003 0 0020 0 0005 2 000000 A lt 0 12 V 0 050 0 020 0 080 0 020 0 100 0 020 0 0050 0 0010 10 00000 AP lt 0 6 V 0 100 0 010 0 120 0 010 0 150 0 010 0 0050 0 0020 200 0000 Q 1 mA 0 0030 0 0030 0 008 0 004 0 010 0 004 0 0006 0 0005 2 000000 kQ 1 mA 0 0020 0 0005 0 008 0 001 0 010 0 001 0 0006 0 0001 Resistance 20 00000 kQ 100 uA 0 0020 0 0005 0 008 0 001 0 010 0 001 0 0006 0 0001 200 0000 kQ 10 uA 0 0020 0 0005 0 008 0 001 0 010 0 001 0 0006 0 0001 1 000000 MO 2 uA 0 002 0 001 0 010 0 001 0 012 0 001 0 0010 0 0002 10 00000 MQ 200 nA 0 015 0 001 0 030 0 001 0 040 0 001 0 0030 0 0004 User s Guide for DM3068 6 1 RIGOL Chapter 6 Specifications 100 0000 MQ 200nA 10 MO 0 300 0 010 0 800 0 010 0 800 0 010 0 1500 0 0002 Diode Test 2 0000 VU 1mA 0 002 0 010 0 008 0 020 0
16. 010 0 020 0 0010 0 0020 Continuity Test 2000 0 Q 1mA 0 002 0 010 0 008 0 020 0 010 0 020 0 0010 0 0020 1 Specifications are for 90 minute warm up and 100 PLC integration time When the integration time is 100 PLC add the appropriate RMS Noise Adder listed in the following table 2 10 overrange on all ranges except DCV 1000 V and DCI 10 A ranges 3 Relative to calibration standards 4 For each additional volt over 500 V add 0 03 mV error 5 For continuous current gt 7A DC or 7A AC rms 30 seconds ON and 30 seconds OFF 6 Specifications are for 4 wire resistance measurement or 2 wire resistance measurement using REL operation Without REL operation add 0 2 Q additional error in 2 wire resistance measurement 7 Accuracy specifications for the voltage measured at the input terminal only 1 mA test current is typical Variation in the current source will cause some variation in the voltage drop across a diode junction Performance of Different Integration Time 50 Hz 60 Hz Power line Frequency Mise Readings s RMS Noise Adder of Range ime Number of Resolution NMRRP DCV 2 V DCV 1000 V DCV 200 mV Power Line ppm Range dB 50Hz 60Hz DCV20V wend DCI 2 mA Resistance 200 Q Cycles aa 200 mA DCI 10A NPLC 20 kQ 0 006 2 7 0 10000 10000 0 0006 0 0007 0 0015 0 0040 0 02 1 6 0 2500 3000 0 0004 0 0004 0 0008 0 0025 0 06 1 0
17. Esa vo ERAS EU E adea Uu EE med 1 20 Installation Procedures ve 9 ce HRE o EE meme 1 22 Chapter 2 Front Panel Operations eene 2 1 TO Sethe Raney i eer ERO EA EE n RR A REF R E PR XRE RE ERR EHE 2 2 To Set the ResolU tlOriu siste tbt prt tr pt prede e bt rd err a dC ed e 2 2 3 Basic Measurement Functions esseseeee meer 2 5 To Measure DC Voltage ssssseeeem emen 2 5 To Measure AC Voltage meme 2 7 TO Measure DC GCUrfF ent ud oa cere ee e eh i rae dre e ta 2 9 T Meas re AC Current iiv e PO T a S OG o o E a 2 11 User s Guide for DM3068 XIII RIGOL XIV To Measure Resistant ee ee ee 2 14 To Measure Capacitance sssssssesee meme nnns 2 17 To Measure Continue ee ee emen 2 19 To Measure Diodes fy atin ice n e te bia wea cdd d ined 2 21 To Measure Frequency and Period sese eee eee eee 2 23 Any Sensor Measurement see ee eee ee ee ee eree eree emen nnne 2 26 User defined SSrnsol s coupes etes on E Exo DG ER Pe c PO A ERE P os DR 2 28 Temperature SensoE uec vT 2 97797 etri tete ER ete eerta 2 33 Preset Mode RR E ERR VEA TER EORR de RE 2 37 Secondary Function Key sse 2 38 Measurement Configuration ee ee ee ee Kee Kee Henne 2 40 Integration TIITieas cvs der SR Eee e Ee edi e d 2 41 DC ImpedatiCe mac ett te te e E EE RR VOR EDO QR EUER IERI ETIN 2 42 OA uS 2 43 Offset Compensation sss nenne 2 44 AC RITET ies er ober pite eb Pr e ed RE CV ERO LEER TE
18. Factor Errors non sine wave Frequency AC Filter Crest Factor Error of reading Slow Medium Fast 10 Hz 20 Hz 0 0 74 1 2 0 05 20 Hz 40 Hz 0 0 22 2 3 0 2 40 Hz 100 Hz 0 0 06 0 73 3 4 0 4 100 Hz 200 Hz 0 0 01 0 22 4 5 0 5 200 Hz 1 kHz 0 0 0 18 gt 1 kHz 0 0 0 1 Specifications are for 90 minute warm up slow ac filter and sinewave input 2 10 overrange on all ranges except ACV 750 V and ACI 10 A ranges 3 Relative to calibration standards 4 Specifications are for sinewave input gt 5 of range For inputs from 1 to 596 of range and 50 kHz add 0 1 of range additional error For 50 kHz to 100 kHz add 0 1396 of range 5 ACV 750 range limited to 8x10 Volt Hz When the input exceeds 300 V rms add 0 7 mV error for each additional volt 6 For continuous current gt DC 7A or AC 7A rms 30 seconds ON and 30 seconds OFF 7 When the frequency is lower than 100 Hz the specification of slow filter is only for sine wave input 8 Specifications are for sinewave input gt 5 of range For inputs from 1 to 5 of range add 0 1 of range additional error Specifications are typical values for 200 uA 2 mA 2 A and 10 A ranges when frequency is gt 1 kHz 6 8 User s Guide for DM3068 Chapter 6 Specifications Measuring Characteristics RIGOL True RMS AC Voltage Measurement Method AC coupled True RMS measure the ac component of input with up to 400 V DC bias on any range Crest F
19. I nterface In addition to button you can press gt REL in common measurement interface to directly enter the REL setting interface User s Guide for DM3068 RIGOL RIGOL Chapter 2 Front Panel Operations Measurement Configuration Most measurement parameters are user defined Changing a measurement parameter will change the measurement precision and speed as well as the input impedance An appropriate measurement parameter based on the actual application will ensure faster measurement or higher measurement precision The default measurement configurations of the multimeter can ensure the accuracy of the measurement results in most cases Users can directly use these defaults for any measurement or modify the parameters of the measurement function as required The parameters for different measurement function differ see table below Table 2 5 Measurement parameter Functions Parameters DCV integration time DC impedance Auto zero AZ ACV AC filter DCI integration time Auto zero AZ ACI AC filter OHM 2WR 4WR Integration time Auto zero AZ Offset compensation OC CAP N A CONT Short circuit resistance DIODE Current Source FREQ PREIOD Gate time AC filter SENSOR N A To set the measurement parameter select a measurement function and then press J For more details please refer to the following content 2 40 User s Guide for DM3068 Chapter 2 Front Panel Operations
20. The method of the test leads 2 Common Measurement 3 Math 4 Sensor Select A t Figure 1 11 Help Topics Table 1 1 Help Menu Menu Description Select Go to the selected help topic 4r Cursor up Cursor down m Page up t Page down Go to the previous menu Help Topics The method of the test leads Common measurement Math Sensor Store and recall Utility I O interface Online help To change the power fuse 10 Support B mo M m UP Ww Mp 1 18 User s Guide for DM3068 Chapter 1 Quick Start To Use the Rack Mount Kit RIGOL DM3068 can be mounted into a standard 19 inch rack cabinet Before the installation please remove the package and cushioning material of the multimeter Kit Parts List Table 1 2 Kit Parts List No Name Qty Part Number Description 1 1 Front Panel 1 RM DM 3 01 Support 1 RM DM 3 02 1 2 Board 1 3 Left Plate 1 RM DM 3 03 1 4 Right Plate 1 RM DM 3 04 1 5 Fixed Finger 2 RM DM 3 05 24 M4 Screw 16 RM SCREW 01 M4 8 Phil Slot Pan Head Machine Screw Nail 22 M6 Screw 4 RM SCREW 02 M6 16 Phil Slot Pan Head Machine Screw Nail 2 3 M6 Nut 4 RM SCREW 03 M6 5 Square Machine Female Screw with Lock Blade User s Guide for DM3068 RIGOL Chapter 1 Quick Start Installation Tool PH2 cross screwdriver is recommended Installation Space The machine cabinet shoul
21. can save and recall various types of files MIRR_CFG save all system and sensor configurations files from the internal memory into an external USB storage device in one file The filename suffix is xmir SysSetting save the current system configuration as an xmir file e MeasData save the current measurement data as an xdat file MEAS CSV save the current measurement result as a csv file To view the stored data please use Microsoft Office Excel Sensor save the current sensor configuration as an xsen file SensorData save the current sensor measurement data as an xsda file SEN CSV save the current sensor measurement data as a csv file You can view the stored data using Microsoft Office Excel 2 66 User s Guide for DM3068 Chapter 2 Front Panel Operations RIGOL Internal Storage The internal memory C of the multimeter holds up to 10 groups of system configurations 10 groups of measurement data 5 groups of sensor configurations and 5 groups of sensor data External Storage The external USB storage device A can save 7 types of files according to its capability To use the external storage insert an USB storage device into the USB Host interface at the front panel and wait until an icon amp appears in the status bar on the screen USB Host I I I T I I OO OO O OO G9 2 9 Fea r
22. e Math enter the math function setting interface Trend enter the tendency graph interface HISTO enter the histogram interface User s Guide for DM3068 2 49 RIGOL Chapter 2 Front Panel Operations Math The multimeter provides 5 math functions STA MAX MIN AVG and ALL P F dBm dB and REL Different measurement function allows different math functions as shown in the table below Table 2 6 Math Operation Measurement Function Available Math Functions DCV STA P F dBm dB REL ACV STA P F dBm dB REL DCI STA P F REL ACI STA P F REL OHM 2WR 4WR STA P F REL CAP STA P F REL CONT N A DIODE N A FREQ PREIOD STA P F REL SENSOR STA P F REL Take the DCV for instance Press gt Math to enter the following interface Press the related menu to enter the desired measurement setting interface Note that you can only use one math operation from SAT P F dBm and dB at a time but REL can be used together with any of the four at the same time 2 50 User s Guide for DM3068 Chapter 2 Front Panel Operations RIGOL STA STA calculates the min max average and mean square deviation of readings during the measurement Press STA to enter the following interface After you choose a desired STA function press ON to enable it and the multimeter enters the reading interface The reading updates during the measurement e When MAX or MIN is selected the multi
23. measure both voltage or current and frequency of an ac signal The voltage or current value is shown on the main display while the frequency is shown on the vice display For example press Y gt G gt Ee to enter the following interface ACY i Auto 20Hz LXI Note The multimeter measures the two parameters at the same time and the main and vice displays update respectively 6 lT the measurement from the main display uses math operation STA MAX MIN AVG ALL P F dBm dB turning on the vice display will automatically disable the math operation in use while the vice display presents the measurement value of the vice display function The math operation MAX MIN AVG dBm dB REL only works with the main display when dual display function is used Turning on P F will automatically disable the dual display 6 ifthe measurement on the main display uses math operation REL turning on the vice display will not change the display result on the main display and the vice display presents the measurement value of the vice display function 2 Quickly Store Current Settings Press gt gt Setn the multimeter stores the current measurement configurations into the memory unit corresponding to the key with the name Setn You can also use to perform the operation for details please 2 38 User s Guide for DM3068 Chapter 2 Front Panel Operations refer to Save and Recall 3 Quickly Enter REL Setting
24. measurement and to enter the following interface 2 Make connection Connect the test lead with the measured resistance by referring to Measurement Connections 3 Setthe range and resolution Specify an appropriate range and resolution according to the measured signal and measurement requirements 2 14 User s Guide for DM3068 Chapter 2 Front Panel Operations RIGOL 4 Set the measurement parameters Optional The 2WR 4WR measurement allows users to configure the integration time auto zero and offset compensation For details please refer to Measurement Configuration 5 Read the measurement value The multimeter measures the measured resistance according to the current measurement settings and displays the value on the screen 6 Make math operation advanced Users can perform math operation STA P F dBm dB and REL on each 2WR 4WR measurement reading For REL operation the multimeter subtracts the pre specified value of REL from the actual measurement result and displays the result For details please refer to Math Operations f the measured resistance is small REL operation is recommended in order to reduce the error caused by test lead Both ends of the measured resistance should be placed far away from your hands and desks that can conduct electricity otherwise the measurement result might be inaccurate The greater the measured resistance is the greater the affect will be 7 Mi
25. range DCV i Auto LXI 2 000 oiv Auto range Press Auto to directly enable the auto range e Manual range Press Rng or Rng to specify a desired range manually Note OVER LOAD will be displayed when the input signal exceeds the current range By default the range is set to Auto at power on or after a reset Auto mode is recommended if you are not sure about the measurement range in order to protect the instrument and obtain accurate data In FREQ PERIOD measurements the multimeter uses different gate times to include all input signals within 3 Hz and 1 MHz The range of CONT measurement is fixed at 2 KQ the range of DIODE measurement is related to the current source currently selected 2 2 User s Guide for DM3068 Chapter 2 Front Panel Operations To Set the Resolution RIGOL DM3068 holds reading resolutions of 31 415 5 and 6 digits It automatically selects a reading resolution according to the current measurement settings The greater the resolution is the higher the measurement accuracy will be the lower the resolution is the faster the measurement will be Different measurement function has different resolution 1 In DCV DCI and OHM measurements press the left and right direction keys at the front panel to set the reading resolution to 51 2 or 6 digits The resolution affects the integration time and vice versa Table 2 1 Relationship between reading resoluti
26. redraw the histogram according to the current measurement data Info provide information about the current measurement Hide hide the operation menu User s Guide for DM3068 2 59 RIGOL Chapter 2 Front Panel Operations Trigger DM3068 provides four types of triggers auto single external and level It reads one or more specified number of readings up to 50 000 each time a trigger signal is received and allows users to set the delay time between the start of trigger and reading Press at the front panel to enter the following interface Source choose a trigger source from Auto Single Ext and Level Hold enable or disable the reading hold function Set set the related parameters VMC enable or disable the trigger output 2 60 User s Guide for DM3068 Chapter 2 Front Panel Operations RIGOL To Select a Trigger Source Press Source to enter the following interface The default is Auto Auto Auto Trigger Press Auto and Done to enable the auto trigger The backlight of at the front panel then turns on and the multimeter continuously takes readings at the fastest possible speed according to the current configuration At this point pressing will enable the reading hold function the backlight will flicker and a stable reading will be captured and held on the screen Single Trigger Press Single and Done to enable the single trigger The backlight of at the front panel then goes on The
27. the REL operation Besides you can perform STA and P F operations For details please refer to Math Operations Disp set the display mode of the result from sensor measurement Meas indicates that only the measurement value will be displayed while Corrsp indicates that only the corresponding value will be displayed All indicates that both the measurement value on the vice display and the corresponding value on the main display will be displayed The corresponding value refers to the value of measured physical quantity SENSOR Sensor LXI 49 05305 C TSH Mew Edit Load Histo REL Disp 2 26 User s Guide for DM3068 Chapter 2 Front Panel Operations RIGOL The following part introduces how to create a sensor configuration file in details For DCV DCI 2WR 4WR or FREQ sensor you can define a fitting curve Since the temperature sensor TC RTD THERM converts the electrical signal such as voltage or resistance to temperature using the software conversion program inside the instrument you can directly choose a desired temperature sensor User s Guide for DM3068 2 27 RIGOL Chapter 2 Front Panel Operations User defined Sensor Press gt New gt User to enter the following interface Sensor Prpty Define Done f Prpty set the sensor name type and unit Define define the response curve of the sensor 1 Define the Sensor Name Press Prpty gt Name to enter the following in
28. the following interface Model DM3068 Serial No DM3A201003085D Version 01 01 00 01 99 00 Siftst MU 6 Siftst press this softkey and then press Run to execute the self test Info provide information about the multimeter such as the model and serial number Error list the newest error information up to 21 items from the error queue User s Guide for DM3068 2 81 Chapter 3 Remote Control RIGOL Chapter 3 Remote Control This chapter introduces how to control the multimeter remotely using either virtual panel based on web page or interface commands The chapter contains the following topics B Web Control BH Command Control User s Guide for DM3068 3 1 RIGOL Chapter 3 Remote Control Web Control DM30668 confirms to LXI C standard and can be remotely controlled via web page Please take the following steps 1 Set the LAN Connect the multimeter to LAN using network cable Set and obtain the IP address by referring to Interface Configurations in chapter 2 2 Execute Remote Control Input the obtained IP address in the internet explorer and enter the following welcome interface Then click Web Identification Indicator and the beeper sounds E cR p v gm c Conto c MAC Address 10 12 05 07 02 11 Bj Pagar 172156385 Pamer Redon 010 0007 Web identification Indicator 1 Press Network Status to enter the interface as shown in the figure below to view the sett
29. to the network using network cable Apply LAN Status Configured DHCP ON AutolP OFF Default DNS BEI 1 LAN Status Display the current network connection status LAN Status Configured indicate the LAN is connected e Unlink indicate the LAN is not connected Press Info and use the up and down direction keys to view other information of network connection 2 To Set IP Configuration Mode The IP address configuration mode can be set to DHCP AutolP or ManuallP Different modes may have differences in parameter configuration User s Guide for DM3068 2 71 RIGOL Chapter 2 Front Panel Operations Tip When all three IP configuration modes are ON the priority order of the configuration mode is DHCP Autol P and ManuallP At least one IP configuration mode should be ON 1 DHCP The DHCP server from the current network assigns network parameters to the multimeter such as IP address Press DHCP to turn on or off the DHCP configuration mode 2 Autol P The multimeter automatically acquires an IP address from 169 254 0 1 to 169 254 255 254 and a subnet mask 255 255 0 0 according to the current network configurations Press AutolP to turn on or off the Autol P configuration mode To enable this mode DHCP must be OFF 3 Manuall P Users define the netw
30. voltage measurement range True RMS 0 V to 787 5 V AC current measurement range True RMS 0 A to 10 5 A Resistance measurement range 0 to 110 M Q support 2 wire 2WR and 4 wire 4WR resistance measurements Capacitance measurement range 0 F to 110 mF Frequency measurement range 3 Hz to 1 MHz Continuity and Diode tests User defined any sensor measurements and three types of temperature sensor measurements TC RTD and THERM Plenty of math operations such as STA MAX MIN AVG ALL P F dBm dB REL as well as real time tendency graph and histogram display functions Enable to store data and configuration in USB storage device Plenty of interfaces USB Device USB Host GPIB RS232 and LAN Support the command sets of RIGOL DM3068 Agilent 34401A including some extensions and Fluke 45 User s Guide for DM3068 IX RIGOL Two power management modes enable or disable the front panel power switch Enable to store 10 groups of system configurations and 5 groups of sensor configurations in internal memory and recall them when necessary Configuration clone back up all the instrument configurations in a USB storage device or clone the configurations to other DM3068 Provide English Chinese menus and built in help system Powerful remote control and any sensor editing software X User s Guide for DM3068 RIGOL Document Overview Chapter 1 Quick Start This chapter guides users to quick
31. 0 to 110 of the maximum range of the selected measurement function The settings are stored in volatile memory and will be cleared automatically at power off After you setting the desired parameters press ON to enable the P F operation The multimeter automatically exits the P F setting interface and goes to the measurement main interface as shown in figure below Dev i 200mV i 10 LXI The status bar displays P F The main display contains the current measurement reading The vice display displays PASS if the test succeeds 2 52 User s Guide for DM3068 Chapter 2 Front Panel Operations RIGOL e ifthe current reading exceeds the high or low limit the vice display shows HI FAIL or LO FAIL and the beeper sounds beeper is on gt System gt Sound H WARNI NG The P F signal from pins 1 and 9 of RS232 is not compatible with the handshake signal Carrier Detect and Ring Indicator from standard RS232 User s Guide for DM3068 2 53 RIGOL Chapter 2 Front Panel Operations dBm dBm represents the absolute value of the power The dBm operation calculates the power of the reference resistance according to the measured voltage dBm 10 x Logio Reading Rag 1 mW Wherein Reading denotes the measured voltage and Rege denotes the reference resistance Press dBm to enter the following interface from which you can use the direction keys to specify a reference resistance within 2 Q and 8000 Q
32. 1 pF in 2 nF range Input Protection a 1000 V input protection is available in all ranges 10 overrange is available on all ranges Operating Steps 1 Enable the CAP measurement Press at the front panel to enter the following interface CAP i Auto LXI 2 Make connection Connect the test lead with the measured capacitance by referring to Measurement Connections Tip Please short contact the two feet of an electrolytic capacitor by using a test lead before measuring the electrolytic capacitor 3 Setthe range Specify an appropriate range the resolution is fixed at 3 digits according to the measured signal and measurement requirements 4 Read the measurement value The multimeter measures the measured capacitance according to the current measurement settings and displays the value on the screen 5 Make math operation advanced Users can perform math operation STA P F and REL on each CAP measurement reading For REL operation the multimeter subtracts the User s Guide for DM3068 2 17 RIGOL Chapter 2 Front Panel Operations pre specified value of REL from the actual measurement result and displays the result For details please refer to Math Operations 6 View history data Up to 5000 latest measured data can be viewed Press History to enter the following interface Measurement CAP Range 2nF Records 1 HistoG Update Save Press Info and use the up and down directio
33. 14 0 3 0 01 0 01 2 000 uF 100 uA 14 0 3 0 01 0 01 20 00 uF 1 mA 1 4 0 3 0 0140 01 200 0 uF 1mA 1 4 0 3 0 01 0 01 2 000 mF 1 mA 1 4 0 3 0 01 0 01 20 00 mF 1 mA 140 3 0 01 0 01 100 0 mF 1 mA 3402 0 05 0 02 1 Specifications are for 90 minutes warm up and REL operation Additional errors may be caused by non film capacitors 2 Specifications are for 196 to 110 of range on 2 nF range and 10 to 110 of range on all other ranges Measuring Characteristics Capacitance Measurement Measurement Method Apply constant current into the capacitance and measure the voltage changing rate Connection Type 2 wire Measurement Considerations Since small capacitance measurements are susceptible to error caused by external noise shielding inputs from external noise pickup is critical for minimizing measurement errors User s Guide for DM3068 RIGOL Chapter 6 Specifications Temperature Characteristics Accuracy Specifications U Function Probe Type Type Optimum Range 1 Year Temperature Coefficient Teca C 5 C O C to Tcu C 5 C Tcu C 5C to 50 C Temperature RTD a 0 00385 200 C to 660 C 0 16 C 0 01 C Rois within 49 Q a 0 00389 200 C to 660 C 0 17 C 0 01 C and 2 1 kQ a 0 00391 200 C to 660 C 0 14 C 0 01 C a 0 00392 200 C to 660 C 0 15 C 0 01 C 2 2 KQ 40 C to 150 C 0 08 C 0 002 C Thermal 3 kQ 40 C to 150 C 0 08 C 0 002 C Resis
34. 33 us step Internal Trigger Accuracy 1 of range Reading Hold Sensitivity 0 0196 0 196 196 or 1096 of reading Single Trigger Samples 1to 50000 External Trigger I nput Level 5 V TTL compatible Impedance gt 30 kQ in parallel with 500 pF Delay 50 us Jitter lt 50 us ACV ACI FREQ and PREIOD lt 2 ms Polarity rising edge falling edge available Maximum Rate 300 s Minimum Pulse Width 2 us VMC Output Level 5 V TTL compatible Output Impedance 100 Q typical Output Polarity Negative Pulse Width about 2 us History Record and Storage 6 18 User s Guide for DM3068 Chapter 6 Specifications RIGOL Volatile Memory Non volatile Memory 512k reading history data record 10 sets history data storage 5000 readings group 5 sets sensor data storage 5000 readings group 10 sets instrument setup storage 5 sets any sensor setup storage Support USB storage device backup of data in internal memory User s Guide for DM3068 RIGOL General Specifications Chapter 6 Specifications Display Power Supply Power Consumption 256x64 LCD dual display Chinese English menu and online help AC 100 V 120 V 45 Hz 440 Hz AC 200 V 240 V 45 Hz 66 Hz Detect the power frequency automatically at power on 400 Hz defaults to 50 Hz 25 VA Max Working Environment Full accuracy for 0 C to 50 C Full accuracy to 8096 R H at 40 C Non coagul
35. 833 1000 0 0003 0 0003 0 0006 0 0025 0 2 0 5 0 250 300 0 0001 0 0002 0 0003 0 0015 1 0 22 60 50 60 0 0 0001 0 0002 0 0004 2 0 17 60 25 30 0 0 0 0001 0 0003 10 0 08 60 5 6 0 0 0 0 0002 100 0 035 60 0 5 0 6 0 0 0 0 6 2 User s Guide for DM3068 Chapter 6 Specifications RIGOL 1 Typical value Resolution is defined as the RMS noise of DCV 20 V range set auto zero to Once 2 Normal mode rejection ratio for power frequency 0 1 For power line frequency 1 subtract 20 dB For 3 subtract 30 dB 3 Maximum rate for DCV DCI 2 wire resistance and 4 wire resistance functions 4 The basic DC accuracy specifications include RMS noise at 100 PLC For 100 PLC add RMS Noise Adder to the basic DC accuracy specifications SFDR amp SI NAD Function Range Spurious Free Dynamic Range SFDR Signal to Noise and Distortion SI NAD DCV 200 mV 81 76 2 V 79 78 20V 79 75 200 V 83 80 1000 V 86 82 DC 200 uA 89 69 2 mA 86 81 20 mA 88 69 200 mA 81 79 2A 69 64 1 Typical value 1 dBFS 1kHz single tone 100 us aperture time zero trigger delay auto zero off and 4096 samples User s Guide for DM3068 6 3 RIGOL Measuring Characteristics Chapter 6 Specifications DC Voltage Input Impedance 200 mV 2 V 20 V ranges 10 MQ or gt 10 GO For these ranges input beyond 26 V are clamped through 106 kQ 200 V and 1000 V ranges 10 MOX 196 Input
36. AC Filter Mid DC Input Impedance 10 MO Reading Resolution 6 Measurement Function DCV User s Guide for DM3068 2 79 RIGOL Chapter 2 Front Panel Operations Range Auto Math Operations Math Status OFF Math Item STA Math Register All registers cleared dBm Reference Resistance 600 Q Trigger Parameters Delay Auto Number of Samples 1 Holding Range 0 1 Trigger Source Auto System Sound ON Separator f Simplified Chinese in China and English Language in other area Display Mode Normal black text on white background Error Queue Cleared Saved Instrument Parameters and Data No change Remote Interfaces GPIB Address 7 Interface USB Baud Rate 9600 Parity Check None 8 data bit HS Handshake OFF Remark Parameters marked with data in the above table are stored in nonvolatile memory User s Guide for DM3068 Chapter 2 Front Panel Operations RIGOL To Set the System Clock Press gt System gt Clock to enter the following interface 06 12 2010 17 32 24 06 12 2018 BEEN Time Jf done f Use the left and right direction keys to move the cursor use the up and down direction keys to modify the value and press Done to finish the system clock setting To Perform the Self Test DM3068 can automatically detect the system hardware and display the results in error list Press gt T C to enter
37. B 1 Connect the I nstrument Connect the multimeter to PC using GPIB cable 2 Configure GPIB Address Select GPIB interface and configure its address according to I nterface Configurations in chapter 2 3 Search RS232 Devices Turn on the Ultra Sigma and click to enter the communication setting interface as shown in the figure below Click Search and the software will search the GPIB instrument resources connected to the PC The device resources will be displayed on the right side of the panel RS232 Setting GPIB Setting Remove OK GPIBO 25 INSTR 25 INSTR GPIBO 25 INSTR Hyper channel Search If resources can not be found automatically Select the GPIB card address of the PC from the comboBox of GPIB and select the GPIB address set in the instrument from the comboBox of INSTR Click Test to check whether the GPIB communication works normally if not please follow the corresponding prompt messages to solve the problem 4 View GPI B Device Click OK and the software return to its main interface The searched instruments are shown under the RIGOL Online Resource directory as User s Guide for DM3068 3 11 RIGOL Chapter 3 Remote Control shown in the figure below LAN GPIB USB TMC RS232 IVI Config Verify All Other Online Resource IDN R 5 Communication Test Right click the source name DM3068 GPIB0 25 I NSTR and then select SCPI P
38. Control via USB eget ci KTN ZER a1 ZT eee 3 6 Remote Control via LAN sees 3 8 Remote Control Vid GBB eee 3 11 Remote Control via RS232 cccccecceeeeecneeeete esse aaeoa rA e 3 13 Chapter 4 Troubleshooting 11eeeeeeeeeee einen nennen nnn nnn 4 1 Chapter 5 Measurement Tutorial cessere 5 1 Loading Errors DCW icis tiri et rr a oe reet a rb Enn eed ra e EE raa 5 2 True RMS AC Measurements e e e e e eene nen nnns 5 3 Crest Factor Errors non sinusoidal Inputs ee eee ee 5 5 Loading Errors ACV aa aana eaaa siti e E Exe Eel ree EX FERE En re FON REPRE a 5 6 Chapter 6 Specifications eeeeeeeeeeseeeieeseeee eene enean nnns 6 1 DC Characteristics eee e e m centeno ferie erre d x xd ber dte pe dea 6 1 AC Characteristics esee meme nnns 6 6 Frequency arid Period Characteristics ira tst eae ders 6 11 Capacitance Characteristics see ee eee eree ereer 6 13 Temperature Characteristics sese eee ee ee eee eree eree eree 6 14 Meas rerrient Rate ss esr rur nr ER RAAI EN P inen e daira 6 16 Other Measuring Characteristics eee eee eee eee e 6 18 General SpecificatioNS a rcd ed ete a a ee e POE Re Y RR e ER nd 6 20 Chapter 7 Appendix eeeeeeeeeeeeieeiee eee ese nnne na nnn nana nnne ann 7 1 Appendix A DM3068 Accessories 7 1 Appendix B Warranty i ee e a ERR FE CER EO PC E de 7 2 Ys aiae 1 User s G
39. Function 1 PASS Carrier Detect Output negative pulse if P F test succeeds 2 RXD Receive Data Receive data 3 TXD Transmit Data Send data 4 DTR Data Terminal Ready Data terminal is ready for receiving 5 GND Signal Ground Signal Ground 6 DSR Data Set Ready Data is ready 7 RTS Request To Send Unused 8 CTS Clear To Send Unused 9 FAIL Ring Indicator Output negative pulse if P F test fails Remark Pins 1 and 9 always outputs high level when P F output is disabled H WARNI NG The P F signal from pins 1 and 9 of RS232 is not compatible with the handshake signal Carrier Detect and Ring Indicator from standard RS232 User s Guide for DM3068 2 75 RIGOL Chapter 2 Front Panel Operations Press gt 1 0 RS232 to enter the following interface Set set RS232 interface parameters Print enable or disable the data output function 1 To Set RS232 Parameters Press Set to enter the following interface e Baud select the desired baud rate from 1200 2400 4800 9600 19200 38400 57600 and 115200 The default is 9600 This setting is stored in nonvolatile memory Parity select the desired parity from None Odd and Even The default is None This setting is stored in nonvolatile memory HS enable or disable the serial hardware handshake function When it is disabled please do not connect DTR DSR pins into a logic high level 2 Print Press Print to enter the following i
40. Hz 0 04 4 0 04 0 07 0 04 0 08 0 04 0 008 0 004 20 kHz 50 kHz 0 10 4 0 05 0 12 0 05 0 15 0 05 0 012 0 005 50 kHz 100 kHz 0 55 0 08 0 60 0 08 0 60 0 08 0 060 0 008 100 kHz 300 kHz 4 00 0 50 4 00 0 50 4 00 0 50 0 20 0 02 200 0000 V 3 Hz 5 Hz 1 00 0 02 1 00 0 03 1 00 0 03 0 100 0 003 5 Hz 10 Hz 0 35 0 02 0 35 0 03 0 35 0 03 0 035 0 003 10 Hz 20 kHz 0 04 0 02 0 07 0 03 0 08 0 03 0 008 0 003 6 6 User s Guide for DM3068 Chapter 6 Specifications RIGOL 20 kHz 50 kHz 0 10 0 04 0 12 0 05 0 15 4 0 05 0 012 0 005 50 kHz 100 kHz 0 55 0 08 0 60 0 08 0 60 0 08 0 060 0 008 100 kHz 300 kHz 4 0 0 50 4 0 0 50 4 0 0 50 0 20 0 02 750 000 VP 3 Hz 5 Hz 1 00 0 02 1 00 0 08 1 00 0 03 0 100 0 003 5 Hz 10 Hz 0 35 0 02 0 35 0 03 0 35 0 03 0 035 0 003 10 Hz 20 kHz 0 04 0 02 0 07 0 03 0 08 0 03 0 008 0 003 20 kHz 50 kHz 0 10 0 04 0 12 0 05 0 15 0 05 0 012 0 005 50 kHz 100 kHz 0 55 0 08 0 60 0 08 0 60 0 08 0 060 0 008 100 kHz 300 kHz 4 0 0 50 4 0 0 50 4 0 0 50 0 20 0 02 True RMS AC 200 0000 uA 3 Hz 5 Hz 1 10 0 06 1 10 0 06 1 10 0 06 0 200 0 006 Current 19 5 Hz 10 Hz 0 35 4 0 06 0 35 0 06 0 35 0 06 0 100 0 006 10 Hz 5 kHz 0 15 4 0 06 0 15 4 0 06 0 15 0 06 0 015 0 006 5 kHz 10 kHz 0 35
41. Input Protection a 1000 V protection is available in all ranges and a 1096 overrange for all ranges except 1000 V range If the reading exceeds 1050 V in 1000 V range OVER LOAD will be displayed Operating Steps 1 Enable the DCV measurement Press at the front panel to enter the following interface By default DCV measurement is selected at each power on DCV Auto 10 LX 2 000 001V 2 Make connection Connect the test leads with the measured signal by referring to Measurement Connections 3 Setthe range and resolution Specify an appropriate range and resolution according to the measured signal and measurement requirements A high voltage icon will appear at the upper left corner of the screen when the 1000 V range is selected 4 Setthe measurement parameters Optional The DCV measurement allows users to configure the integration time dc impedance and auto zero For details please refer to Measurement Configuration User s Guide for DM3068 2 5 RIGOL Chapter 2 Front Panel Operations 5 2 6 Read the measurement value The multimeter measures the input signal according to the current measurement settings and displays the measurement result on the screen Make math operation advanced You can perform math operation STA P F dBm dB and REL on every DCV measurement reading For REL operation the multimeter subtracts the pre specified value of REL operation from the actual measurem
42. Protection 1000 V Input Offset Current 50 pA at 25 C typical CMRR common mode rejection ratio 140 dB for 1 KQ unbalanced resistance in LO lead 500 VDC peak maximum Resistance Measurement Method 4 wire or 2 wire resistance Current source referenced to LO input Open circuit Voltage Limited to lt 10 V Max Lead Resistance 10 of range per lead for 200 Q and 2 kQ ranges 1 kQ per lead on all other ranges 4 wire Input Protection 1000 V on all ranges Offset Compensation Available on 200 Q 2 KQ and 20 kQ ranges DC Current Shunt Resistor 100 Q for 200 uA 2 mA 1 Q for 20 mA 200 mA 0 01 Q for 2 A 10A Input Protection Externally accessible 500 mA 250 V high speed fuse at the rear panel for 200 uA 2 mA 20 mA and 200 mA ranges Internal 10 A 250 V high speed fuse for 2 A and 10 A ranges 6 4 User s Guide for DM3068 Chapter 6 Specifications RIGOL Continuity Diode Test Response Time 300 samples sec with audible tone Continuity Threshold Adjustable from 1 to 2000 Q Auto Zero OFF Operation typical value Following instrument warm up at the environment temperature 1 C and 5 minutes add 0 0001 96 range 2 uV error for DCV and 2 mQ error for resistance Settling Considerations Reading settling times are affected by source impedance cable dielectric characteristics and input signal changes The default measurement delay can ensu
43. RIGOL I ntegration Time Integration time is the period during which the multimeter s analog to digital A D converter samples the input signal for a measurement The longer the integration time is the slower the measurement speed will be and the higher the resolution will be the shorter the integration time is the faster the measurement will be and the lower the resolution will be The integration time applies to DCV DCI 2WR and 4WR measurements DM3068 provides two integration time setting modes NPLC express the integration time by the power line cycles the unit is PLC It can be set to 0 006 0 02 0 06 0 2 1 2 10 and 100 and the default is 10 For the relationship between the integration time and resolution please see Table 2 1 The multimeter automatically detects the input power frequency at power on and considers frequencies within 55 Hz and 66 Hz as 60 Hz and others as 50 Hz APER express the integration time by aperture time The range is from 100 Us to 1s and the default is 100 ms In DCV DCI 2WR or 4WR measurement press gt INTEG to enter the following interface NPLC choose a desired integration time and then press f to return to the upp level menu APER set a desired integration time using the direction keys and then press Done The setting is stored in nonvolatile memory User s Guide for DM3068 2 41 RIGOL Chapter 2 Front Panel Operations DC I mpedance DC impedanc
44. RIGOL User s Guide DM3068 Digital Multimeter Feb 2014 RIGOL Technologies nc RIGOL Guaranty and Declaration Copyright 2010 RIGOL Technologies Inc All Rights Reserved Trademark I nformation RIGOL is a registered trademark of RI GOL Technologies Inc Publication Number UGC06105 1110 Notices RIGOL products are protected by patent law in and outside of P R C RIGOL reserves the right to modify or change parts of or all the specifications and pricing policies at company s sole decision Information in this publication replaces all previously corresponding material RIGOL shall not be liable for losses caused by either incidental or consequential in connection with the furnishing use or performance of this manual as well as any information contained Any part of this document is forbidden to copy or photocopy or rearrange without prior written approval of RIGOL Product Certification RIGOL guarantees this product conforms to the national and industrial standards in China as well as the 1509001 2008 standard and the 15014001 2004 standard Other international standard conformance certification is in progress Contact Us If you have any problem or requirement when using our products or this manual please contact RIGOL Technologies Inc E mail service rigol com Website www rigol com User s Guide for DM3068 RIGOL Safety Requirement General Safety Summary Please review the fo
45. RRA Ra OE EE Oen 2 45 Short Circuit Resistaric8 odo ox e SO a le Rad ede le dd 2 46 Current Soll Ceres Ea tetra tender deo nd te ptem ces 2 47 Gate a E A m EE EP ERE A Ele RED DRE mer p EUR 2 48 Math Operations is usen ire eee cle iex hiuc da Re nao al e anda 2 49 che TT ET 2 50 Tendericy Graph esed eee secet dea Tre E le e RO RR RE 2 57 FANS EO QAI uoce em drea HO DA ERR etn e eR ds a eee a a MET 2 59 Hp mere ares 2 60 To Select a Trigger Source se ee eee eree eree eee 2 61 Reading Hold 5 oet ecce Teste in e eere d 2 62 To Set the Trigger Parameters eee eee eee e e 2 63 Trigger QUEDUE utente E n eut d e e Pte o S RR e d d 2 64 Save ard Recall tma ir nde ER ERER SC UXEREUR EPOR RU EXE DUE EN RE RT R 2 65 Storage Types e ipa wild e RE e Go pl et 2 66 internal SEO Rae co eren eontra ope pa Dee e En D ea 2 67 External Storage iiec pietre repa E e UR EV eH C RE v Plebe 2 67 FOS EVE tel Fle eia tet us eM epa Mrd diel rada i Ros Red sts 2 68 Utility eee cone dete tee tata tate cates ecd nr aloes caedes bn A TE is 2 69 Command Sette Oe eie ve eru nO Re ER 2 69 Interface Configurations esssseeem mmn 2 70 System Configuration iaia A memes 2 77 User s Guide for DM3068 TO Perform the Self Test oed e evo e ct e n 2 81 Chapter 3 Remote Control eeeseeeeeeseeseee nennen nnn 3 1 Web COnttol e ae ct e d bp E E E EE e n 3 2 Command Controls rv teh a eee RA OR D C E e t e n 3 5 Remote
46. Recall 8 Hide the menu Press Hide to hide the operation menus for easier observation of the measurement result Press any softkey again to display the operation menus User s Guide for DM3068 2 25 RIGOL Chapter 2 Front Panel Operations Any Sensor Measurement This function enables you to easily convert a measured physical quantity such as pressure flow rate and temperature into a quantity that can be easily measured such as voltage current or resistance By pre inputting a response curve the multimeter converts and amends the data according to the internal arithmetic and displays the physical quantity measured on the screen Users can edit and modify the display unit of the measured physical quantity at will DM3068 supports user defined DCV DCI 2WR 4WR FREQ and temperature TC RTD THERM sensor measurements Press to enter the following interface Project name of current sensor SENSOR T LXI 0 000 00 New Edit Load History REL Disp New create a new sensor configuration file Edit modify the currently opened or stored sensor configuration file The operation method is similar to that of New Load load the sensor configuration files stored in the internal nonvolatile memory or USB storage device For details please refer to Save and Recall The backlight of goes on when you use this function History display up to 5000 latest measurement data REL quickly enable
47. Ume sse sees eree eee 2 48 Integration time 2 41 Invert co RE 2 T IP Address iie 2 72 User s Guide for DM3068 RIGOL LAN eeii e a e ea 2 71 Level Trigger 2 61 Hp 2 31 local mode sees eee 2 61 Man allP sise mesere iremos 2 72 Mathini RE ed 2 50 MEAS CSV s esee here 2 66 MeasDaeta sese 2 66 MIRR_CFG sss 2 66 NONE iiis tech e ie ena 2 76 OO sso esa v Concetta od 2 76 Offset Compensation 2 44 Period ae os 2 23 Power On Setting 2 79 Preset uc e en 2 37 Mace 2 76 remote mode seen 2 61 Resistance seseris 2 14 RID diii bs 2 33 S NO oos toda d hse 2 63 Secondary Function Key 2 38 SEN CSV teemansa remeras 2 66 SEE 2 66 S NsSOrData ccccecccseceeeseneeeeees 2 66 Short Circuit Resistance 2 46 Single Trigger 2 61 SlOP erick iat ators Em e dE ERN 2 63 Subnet Mask eee eee 2 72 SysSetting l 2 66 E IE T E t ebbe 2 33 Temperature sensor 2 33 THERM retener 2 33 Trigger Output eee eee eee 2 64 1
48. V 750 V Input Protection a 750 V input protection is available in all ranges To obtain the measured signal s frequency and period directly press or use the secondary measurement function during voltage or current measurment Operating Steps 1 Enable the FREQ PERI OD measurement Press at the front panel to select frequency period measurement and to enter either interface shown below FREQ i Auto 100ms A 1 000 OOOkHz PERIOD Auto 1100ms LXI i 1 000 O0Oms 2 Make connection Connect the test lead with the measured signal by referring to Measurement Connections 3 Set the range Specify an appropriate range the resolution is fixed at 6 gt according to the measured signal and measurement requirements 4 Set the measurement parameters Optional In FREQ PERIOD measurement you can set the gate time and filter as required For details please refer to Measurement Configuration User s Guide for DM3068 2 23 RIGOL Chapter 2 Front Panel Operations 5 Read the measurement value The multimeter measures the input signal according to the current measurement settings and displays the value on the screen Besides the multimeter can measure the voltage or current of the signal during the frequency period measurement Press Or and then press and Fea respectively the measurement results are as shown in the figures below ACY i Auto 20Hz LXI ACI i Auto 20Hz LXI
49. ace and select the type of the electric signal to be converted by the sensor Press f to return to the upper level menu lo NER DCV DCI 4WR FREQ f Note if DCI is selected please press gt mA before the following operations 3 Select the Sensor Unit Press Prpty Unit to enter the interface below and select a desired unit for the corresponding measurement result When USER is selected you can define a unit up to 2 characters using the direction keys Press Ef to return to the upper level menu 4 Define the Sensor Arithmetic Curve Press Define Add to enter the following interface from which you can add data pairs on the curve The multimeter fits the relation curve function of the input signal and measurement result using the specified arithmetic according to these data pairs and then calculates the output result using this function according to the input signal Press Meas and enter the data of the physical quantity measured using the direction keys Here as the sensor type is 2WR the unit is Q User s Guide for DM3068 2 29 RIGOL Chapter 2 Front Panel Operations Define TB 0000 Meas Press Corrsp and enter the data of the corresponding physical quantity using the direction keys The unit to be used is the one C you have set in step 3 For different type of sensor the data range available is different Table 2 4 User defined sensor measurement range
50. actor lt 5 at full range Input Impedance 1 MQ 2 in parallel with 150 pF capacitance on any range Input Protection 750 V rms on all ranges AC Filter Bandwidth Slow 3 Hz 300 kHz Medium 20 Hz 300 kHz Fast 200 Hz 300 kHz CMRR common mode rejection ratio 70 dB for the 1 kO unbalance in LO lead 60 Hz common mode signal frequency 500 VDC peak maximum True RMS AC Current Measurement Method Direct coupled to the fuse and shunt AC coupled True RMS measurement measure the AC component Crest Factor lt 3 at full range Max Input DC AC current peak value 30096 of range Current with DC current component 10 A rms Shunt Resistor 100 Q for 200 uA 2 mA 1 Q for 20 mA 200 mA 0 01 Q for 2 A 10A Input Protection Externally accessible 500 mA 250 V high speed fuse at the rear panel for 200 uA 2 mA 20 mA and 200 mA ranges Internal 10 A 250 V high speed fuse for 2 A and 10 A ranges Settling Time Considerations The default measurement delay of the multimeter can ensure the correctness of the first readings of most of the measurements Make sure the RC circuit of input terminal has been fully settled about 1 s before accurate measurement User s Guide for DM3068 6 9 RIGOL Chapter 6 Specifications Appling gt 300 Vrms or gt 5 Arms will cause self heating in signal conditioning components and the errors are included in the instrument
51. al fuse Note I n order to prevent the fuse from blowing out and protect the multimeter please use the current input terminals according to the following requirements 1 Do not connect the 10 A and LO Sense 200 mA input terminals into the current measuring circuit at the same time User s Guide for DM3068 RIGOL 2 Only use 10 A and LO terminals for measurements when the measured current AC DC RMS value goes within 200 mA and 10 A 3 Select a proper current input terminal according to the estimated current magnitude before connect the multimeter to AC supplies if you want to use current measurement 4 The current into 10 A cannot exceed 13 5 A otherwise it will blow out the internal fuse while the current into the LO Sense 200 mA terminal cannot exceed 650 mA otherwise the current fuse from the rear panel may be blown out I EC II Overvoltage Protection In order to prevent electric shock DM3068 provides overvoltage protection for line voltage mains connections meeting both of the following conditions 1 The H and LO input terminals are connected to the mains under Measurement Category I conditions defined below 2 The mains are limited to a maximum line voltage of 300 VAC Warning IEC II includes electrical devices connected to mains at an outlet on a branch circuit Such devices include most small appliances test equipments and other devices that inserted into a branch socket DM3068 may be used to make measu
52. anel Control to open the remote command control panel from which you can send commands and read data as shown in the figure below i DES068 GPIBO 25 INSTR 2010 3 24 9 54 04 319 Device Clear SystemError Options d Read STB Change File Clear History About o TCPIP 172 16 3 114 INSTR IM3A20100308D 01 01 00 01 99 00 3 12 User s Guide for DM3068 Chapter 3 Remote Control RIGOL Remote Control via RS232 1 Instrument Connection Connect the multimeter to PC using RS232 cable Configure RS232 Parameters Select RS232 interface and configure its parameters according to Interface Configurations in chapter 2 Search RS232 Device Turn on the Ultra Sigma and click to enter the communication setting interface shown below After you configure parameters according to the instrument serial port parameters r n must be selected in End Mark click EE to test the RS232 communication When the communication succeeds the searched devices are shown in resource list at the right side of the panel otherwise follow the guides to solve the problem RS232 Setting GPIB Setting Remove OK Serial Resource ASRLI INSTR _ _______ Baud Rate Parity RR Mi Read 2 times 9600 None Data Bits Stop Bit 8 1 ERHEEN Flow Control End Mark None trin User s Guide for DM3068 3 13 RIGOL Chapter 3 Remote Control 4 View RS232 Device Click OK the software return
53. ation Storage Temperature 40 C to 70 C Operation Altitude Up to 2000m Safety IEC 61010 1 EN 61010 1 UL 61010 1 CAN CSA C22 2 No 61010 1 Measurement CAT 1000V CAT II 300V Pollution Degree 2 EMC EN 61326 1 Weight About 3 2 kg without package Dimension heightx width xlength 107 0 mmx231 6 mmx290 5 mm Remote I nterface GPIB 10 100Mbit LAN USB 2 0 Full Speed Device amp Host support USB storage device RS 232C Programming Language SCPI LXI Compatibility LXI Class C Version 1 2 Warm up Time 90 minutes User s Guide for DM3068 Chapter 7 Appendix RIGOL Chapter 7 Appendix Appendix A DM3068 Accessories ee Lena Model DM3068 6 dual display DM3068 Power Cord conforming to the standard of the country Two Test Leads black and red Two Alligator Clips black and red Standard USB Cable CB USB 150 Accessories Four Spare Fuses 2 AC 250 V T250 mA fuses 2 AC 250 V T125 mA fuses Quick Guide Resource CD User s Guide and Application Software Kelvin Test Clip RS232 Cable Rack Mount Kit RM DM 3 Optional Accessories Note All the standard or optional accessories can be ordered from you local RIGOL Office User s Guide for DM3068 7 1 RIGOL Chapter 7 Appendix Appendix B Warranty RIGOL warrants that its products mainframe and accessories will be free from defects in materials and workmanship within the warranty period If a product is proven to
54. be defective within the respective period RIGOL guarantees the free replacement or repair of products which are approved defective To get repair service please contact with your nearest RIGOL sales and service office RIGOL does not provide any other warranty items except the one being provided by this summary and the warranty statement The warranty items include but not being subjected to the hint guarantee items related to tradable characteristic and any particular purpose RIGOL will not take any responsibility in cases regarding to indirect particular and ensuing damage 7 2 User s Guide for DM3068 Index IW Biden cheat 2 14 ZIEL e puteo rate oleae 2 14 AC CUrrent escoger cre 2 11 AC Filter su oe eis 2 45 AC s lale LT 2 7 ANY SENSOF sss eee eee 2 26 Aperture Time eee eee 2 48 Auto Tigger ss xes 2 61 Auto LEl eirin eienn rinas 2 43 LIST sc oot anaa len 2 72 Brightness iria 2 77 Capacitance ccce 2 17 Contiri lty iiec eri pre 2 19 Coritrast i rd RE 2 77 Current SOUrCe 2 47 GUIVG Lo e RERO ERES 2 31 DC CUrrent d uin eed 2 9 DC Impedance ssssss 2 42 DC Voltage eee exe 2 5 Default Gateway s 2 73 Default Setting 2 79 Delay ssp E eet ns 2 63 DHCP staircase acting tate asco 2 72 Diode TTT 2 21 DINE usc cete ex dul RE 2 73 EVS aad e QU moii 2 76 External Tigger eee 2 61 Frequency ss eee ee ee Ke 2 23 Front Switch ssessssss 2 79 Gate
55. command control panel from which you can send commands and read data as shown in the figure below F DN3068 USB0 Ux14B1 0x0C94 D23A020100823 INSTR 2010 10 18 18 08 37 304 MAR pee eC el VSBO Ox1AB1 O0x0C94 DM3A020100823 INSTR 823 01 01 00 01 01 00 User s Guide for DM3068 3 7 RIGOL Chapter 3 Remote Control Remote Control via LAN 1 Connect the I nstrument Connect the multimeter to you local network using network cable 2 Configure LAN Parameters Select LAN interface and configure its parameters according to Interface Configurations in chapter 2 3 Search LAN Device Turn on the Ultra Sigma and click Click Search in the pop up window and the software searches for the instrument resources currently connected to the LAN and the resources found are displayed at the right of the window Select the desired resource name and click OK to add it as shown in the figure below Remove Test TCPIP 172 18 3 Add Manual Input LAW Instrument IP Auto detect of LAN Instrument Search 4 View LAN Device The searched instruments are shown under the RIGOL Online Resource directory as shown in the figure below 3 8 User s Guide for DM3068 Chapter 3 Remote Control RIGOL LAN GPIB USB TMC RS232 Verify All us m RIGOL Online Resource Li DM IVI Class Driv Other Online R IDN Rigol Tec 0110512 01 01 00 01 0T 00 5 Communication Test Right click t
56. d fulfill the following requirements The machine cabinet should be a standard 19 inch one Atleast a 3U space 133 5 mm should be provided by the machine cabinet The depth inside the machine cabinet should not be less than 400 mm 1 20 User s Guide for DM3068 Chapter 1 Quick Start RIGOL Dimensions of the mounted instrument HU eo eo e User s Guide for DM3068 1 21 RIGOL Chapter 1 Quick Start Installation Procedures This operation should be executed only by authorized personnel Improper operations may cause instrument damage or incorrect installation of the instrument into the machine cabinet 1 Remove the handle grip the handle by both sides and pull outward then pull upward 2 Install left and right plates aim the detents of right and left plates at the openings on support board and insert respectively then fix them using eight M4 screws 1 22 User s Guide for DM3068 Chapter 1 Quick Start RIGOL 3 Place the instrument aim the parallels at the corresponding openings and then put the multimeter onto the support board 4 Fixthe instrument fasten or fit the instrument tightly into the support board using two fixed fingers in connection with four M4 screws User s Guide for DM3068 1 23 RIGOL Chapter 1 Quick Start 5 Mountthe front panel aim the front panel opening at the front of instrument and fix them using four M4 screws 6 Load into machine cabinet mount
57. d multimeter using connecting wire that is as short as possible to avoid the error generated by the reception of space electromagnetic signal by the connecting wire loop Operating Steps 1 Enable the DI ODE measurement Press at the front panel to enter the following interface 2 Make connection Connect the test lead with the measured diode by referring to Measurement Connections 3 Select the current source Press 1mA 100uA 10uA 2uA or 200nA to select the desired current source Note when measuring diode with relatively larger drain current please do not use small current source the polarity of the diode might not be distinguished because the forward voltage drop might be too low 4 Readthe measurement value The multimeter screen displays the measured voltage value when the diode is connected otherwise the screen displays OPEN User s Guide for DM3068 2 21 RIGOL Chapter 2 Front Panel Operations 5 Hide the menu Press Hide to hide the operation menus for easier observation of the measurement result Press any softkey again to display the operation menus Remark this function is added since the 01 01 00 01 07 00 version but only the performance of the 1 mA current source is guaranteed 2 22 User s Guide for DM3068 Chapter 2 Front Panel Operations RIGOL To Measure Frequency and Period Frequency Period Range from 3 Hz to 1 MHz from 0 33 s to 1 us Input Signal Range 200 mV 2 V 20 V 200
58. device and be recalled when required 2 LCD The instrument provides a 256 x 64 monochrome LCD that can display the current function menus measurement parameter settings system status prompt messages and so on 3 Auto Trigger Reading Hold Continuously pressing this key can switch between auto trigger and reading hold functions Auto Trigger the backlight is always on the multimeter continuously takes readings at the fastest rate possible for the present configuration User s Guide for DM3068 1 5 RIGOL Chapter 1 Quick Start 1 6 Reading Hold the backlight blinks the multimeter obtains a stable reading and displays it on the screen Single Trigger Local Mode When the multimeter is in local mode press this key to select single trigger the multimeter generates one or the specified number S No of readings and then waits for the next trigger When the instrument is in remote mode press this key to switch to local mode Power Button Press the button to turn on or off the multimeter Users can enable or disable this key as required Press gt System gt Cfg gt Switch and select ON or OFF Measurement Function Keys Basic Measurement Function Keys DC Voltage Measurement DCV v AC Voltage Measurement ACV y DC Current Measurement DCI AC Current Measurement ACI e Resistance Measurement OHM G Capacitance Measurement CAP 5 Continuity Test CONT Lr Diode Test DIODE Freq Freque
59. e and detailed operation methods please contact RIGOL salesman or technical support User s Guide for DM3068 3 5 RIGOL Chapter 3 Remote Control Remote Control via USB 1 3 6 Connect the I nstrument Connect the USB Device interface of DM3068 to the PC USB Host interface using USB cable Install the USB Driver DM3068 is a USBTMC device After you connect the instrument to the PC and turn both on the instrument is automatically configured to USB interface the New Hardware Wizard is displayed on the PC Please install the USB Test and Measurement Device driver following the directions in the wizard Search USB Devices Turn on the Ultra Sigma the software automatically searches instruments USB TMC connected to the PC Additionally you can click to search the resources During the search the status bar of the software is as shown in the figure below Search USBTMC in View USB Device The searched instruments are shown under the RIGOL Online Resource directory with the model and USB interface information as shown in the figure below LAN GPIB USB TMC RS232 IVI Config Verify All m RIGOL Online Resource Other Online R IDN Rigol Techno 20 11 01 00 01 01 00 User s Guide for DM3068 Chapter 3 Remote Control RIGOL 5 Communication Test Right click the source name DM3068 USBO 0x1AB1 0x0C94 DM3A020100823 INSTR and then select SCPI Panel Control to open the remote
60. e applies to DCV measurement The default is 10M and is stored in non volatile memory In the range of 200 mV 2 V or 20 V you can choose 10GQ to reduce the loading error to the measured object caused by the multimeter refer to Loading Errors DCV The current selection is stored in volatile memory In DCV measurement press 2 Res to enter the following interface Press 10MQ or gt 10GQ to select the desired impedance 10MQ set the input impedances in all ranges to 10 MO gt 10GQ set the input impedances in ranges of 200 mV 2 V and 20 V to gt 10 GQ while in ranges of 200 V and 1000 V the impedances are still 10 MQ 2 42 User s Guide for DM3068 Chapter 2 Front Panel Operations RIGOL Auto Zero Auto zero Auto Zero applies to DCV DCI 2WR and 4WR measurements Press gt AZ to enter the following interface ON the multimeter internally disconnects the input signal and measured circuit after each measurement and takes a zero reading It then subtracts the zero reading from the preceding reading displaying the difference between the measurement value and zero value during the measurement in order to reduce the impact of offset voltage from input circuit on measurement result Once the multimeter takes a zero reading and then disables the auto zero The multimeter will subtract this zero reading from the following measurement value OFF disable the auto zero function Whate
61. e current measurement settings and displays the value on the screen 6 Make math operation advanced Users can perform math operation STA P F and REL on each DCI measurement reading For REL operation the multimeter subtracts the pre specified value of REL from the actual measurement result and displays the result For details please refer to Math Operations 7 View history data Up to 5000 latest measured data can be viewed Press History to enter the following interface Measurement DCI Range 200uA Records 187 HistoG Update Save t Press Info and use the up and down direction keys to view the measurement item measurement range number of values maximum minimum average and standard deviation Press List and use the up and down direction keys or the menu softkeys to view all the measurement results before the last update in table form Press HistoG to view the histogram of the average AVG and standard deviation SDEV Press Update to update the Records Maximum Minimum Average and SDEV under Info and the display in List and HistoG Press Save to enter the store and recall interface at this point is illuminated You can save the current measurement data into internal memory or external USB storage device For details please refer to the introduction in Save and Recall 8 Hide the menu Press Hide to hide the operation menus for easier observation of the measurement res
62. e method of the built in help The multimeter allows users to quickly recall the help information about any front panel keys and menu softkeys 9 Range Direction Keys D Enable auto range Configure the measurement parameters Select the cursor position while entering a parameter Increase or decrease the measurement range Enter desired numeric value while setting a parameter Page up or down User s Guide for DM3068 1 7 RIGOL Chapter 1 Quick Start 10 Signal I nput Terminals The measured signal device will be connected into the multimeter through these terminals Different measurement objects have different connection methods For details please refer to Measurement Connections 1 8 User s Guide for DM3068 Chapter 1 Quick Start RIGOL l Current Input Fuse 2 LAN 3 GPIB 4 Power Socket fF m JARNING HAZARDOUS VOLTAGE INSIDE DO NOT REMOVE THE COVER UNLESS BY SPECIFIED PERSONNEL ERI N f DAG ent Input use AC 2 m RS c mm A amp CED Es H U 1 LAN GP A N il jl A OK AC I a L S VN S LXI Class C SEL Line 25VA Max Fuse Z Z Non Auto MDIX 315 AC 100 120v 45 440Hz Ac 250v T250mA gt 230 Ac 200 240v 45 66Hz AC 250V T125mA RS 232 3 l h oo ojo j AN H i Ap 66 amp JH o S Ne WARNING MAINTAIN GROUND TO AVOID ELE IC SHOCK 0
63. e might both contain data segment with good linearity Line arithmetic is recommended and data segment with poor linearity Curve arithmetic is recommended in this case you need to use the segment function to define different arithmetic for different data segment 5 Store and Recall Sensor Configurations Input reference data pairs measurement and corresponding values for the arithmetic curve to be used and the interface as shown in the figure below is displayed 10 00000 2 0000 C 12 00002 25000 15 00000 3 0000 P curve Top Press f to finish the sensor property setting and returns to the User interface Then press Done to enter the following interface Save Apply f Press Save the multimeter enters the store and recall interface and the backlight of goes on User s Guide for DM3068 2 31 RIGOL Chapter 2 Front Panel Operations C Sensor ile1 H L Type Save t Press Save and enter a desired file name by referring to Name File Name I nput Method such as Sens1 002341567383 When finished press Done to save the current sensor configuration into the internal memory C or external USB storage device A with the specified filename Type Save t Press f and returns to User interface Press Apply the multimeter starts measuring according to the current configurations As shown in the figure below the am
64. e specified value of REL from the actual measurement result and displays the result For details please refer to Math Operations View history data Up to 5000 latest measured data can be viewed Press History to enter the following interface Measurement ACV Range 200mv Records 2 Info HistoG Update Save Press Info and use the up and down direction keys to view the measurement item measurement range number of values maximum minimum average and standard deviation Press List and use the up and down direction keys or the menu softkeys to view all the measurement results before the last update in table form Press HistoG to view the histogram of the average AVG and standard deviation SDEV Press Update to update the Records Maximum Minimum Average and SDEV under Info and the display in List and HistoG Press Save to enter the store and recall interface at this point is illuminated You can save the current measurement data into internal memory or external USB storage device For details please refer to the introduction in Save and Recall Hide the menu Press Hide to hide the operation menus for easier observation of the measurement result Press any softkey again to display the operation menus User s Guide for DM3068 Chapter 2 Front Panel Operations RIGOL To Measure DC Current Range 200 uA 2 mA 20 mA 200 mA 2 A 10 A Max Resolution 0 1 nA in 200 uA range I
65. ee eal an ms AN vv amp D HE Qe be SS He ew 7 m e vuel E Ag z CAUTI ON Do not remove the USB storage device under A disk operations User s Guide for DM3068 2 67 RIGOL Chapter 2 Front Panel Operations To Save a File When the current storage disk allows specified file type press Save to enter the following interface The length of the file name should be within 9 characters File Name Input Area CAD e Character Selecting ibcdefghijklmnopmugrstuvwxwyzs Cx Area A a 1 I Del Done f Rango Name File Name input method Place the cursor to the File Name Input Area or Character Selecting Area using the up and down direction keys In File Name Input Area select the character to be edited by pressing the right and left direction keys or press and hold the key while the Character Selecting Area is hidden ln Character Selecting Area choose the desired character by pressing the right and left direction keys At this point the character in the File Name Input Area changes accordingly after choosing the desired character select the File Name Input Area and press the right direction key to confirm the character selected and move the cursor to the next position The name allows uppercase and lowercase letters as well as numbers e A input uppercase letters A Z a input lowercase letters a z 1 i
66. egration Time Readings s 50Hz 60Hz DC Voltage 0 006 PLC Integration Time 100 100 us 10000 10000 DC Current 0 02 PLC 400 333 us 2500 3000 2 wire Resistance 0 06 PLC 1 2 1 ms 833 1000 4 wire Resistance 0 2 PLC 4 3 33 ms 250 300 1 PLC 20 16 7 ms 50 60 2 PLC 40 33 3 ms 25 30 10 PLC 200 167 ms 5 6 100 PLC 2 1 67 s 0 5 0 6 AC Voltage 3Hz AC Filter 0 2 AC Current 20 Hz L5 E 200 Hz 10 200 Hz 5051 Frequency and 1s Gate Time 1 Period 0 1s 10 x 0 015 80 0 001 s 500 Capacitance 25 1 Auto trigger zero trigger delay auto zero off auto range off math function off and external interface off User s Guide for DM3068 Chapter 6 Specifications RIGOL 2 Use the default delay setup rate the default trigger delay 3 The maximum rate available when trigger delay is set to 0 4 20V range fast filter 1kHz input 5 Measure 20nF capacitance on 200nF range The measurement period changes with the capacitance under test The maximum measurement period on 100mF is 4s typical value User s Guide for DM3068 6 17 RIGOL Chapter 6 Specifications Other Measuring Characteristics Trigger and Storage Trigger Pre trigger or Delayed trigger Internal Trigger or External Trigger Rising Edge Trigger or Falling Edge Trigger Time Base Resolution 33 333 us 0 0196 Accuracy Trigger Delay 0 to 3600 s available about 33 us step Sample Timer 0 to 3600 s available about
67. ent result and displays the result For details please refer to Math Operations View history data Up to 5000 latest measured data can be viewed Press History to enter the following interface Measurement DCV Range 200mv Records 5000 HistoG Update Save Press Info and use the up and down direction keys to view the measurement item measurement range number of values maximum minimum average and standard deviation Press List and use the up and down direction keys or the menu softkeys to view all the measurement results before the last update in table form Press HistoG to view the histogram of the average AVG and standard deviation SDEV Press Update to update the Records Maximum Minimum Average and SDEV under Info and the display in List and HistoG Press Save to enter the store and recall interface at this point is illuminated You can save the current measurement data into internal memory or external USB storage device For details please refer to the introduction in Save and Recall Hide the menu Press Hide to hide the operation menus for easier observation of the measurement result Press any softkey again to display the operation menus User s Guide for DM3068 Chapter 2 Front Panel Operations RIGOL To Measure AC Voltage Range 200 mV 2 V 20 V 200 V 750 V Max Resolution 100 nV in the range of 200 mV Input Protection a 750 V input protection is ava
68. er the test lead is correctly inserted into the HI and LO terminals of current measurement Check whether the current fuse at the rear panel is burned out Check whether the DCI or ACI measurement function is enabled Check whether the DCI measurement function is used to measure AC current 3 The reading is abnormal when a DC signal is input 1 Check whether the test lead is correctly inserted into the HI and LO terminals of current measurement Check whether the current fuse at the rear panel is burned out Check whether the DCI or DCV measurement function is enabled Check whether the ACI measurement function is used to measure DC current 4 The USB storage device cannot be identified 1 2 3 Check whether the USB storage device is in good condition Make sure the USB storage device you used is a flash storage device This instrument does not support hardware storage type Check the capacity of your USB storage device It is recommended that User s Guide for DM3068 4 1 RIGOL Chapter 4 Troubleshooting the capacity of the USB storage device is no larger than 4G bytes 4 Restart the multimeter and insert the USB storage device 5 If the problem persists please contact RIGOL 42 User s Guide for DM3068 Chapter 5 Measurement Tutorial RIGOL Chapter 5 Measurement Tutorial This chapter introduces how to eliminate the potential error during your measurement in order to obtain accurate measurement result The c
69. erations Any maintenance adjustment or replacement especially to circuits or accessories must be performed by RIGOL authorized personnel Keep Well Ventilation Inadequate ventilation may cause increasing of temperature or damages to the device So please keep well ventilated and inspect the intake and fan regularly Do Not Operate in Wet Conditions In order to avoid short circuiting to the interior of the device or electric shock please do not operate in a humid environment Do Not Operate in an Explosive Atmosphere In order to avoid damages to the device or personal injuries it is important to operate the device away from an explosive atmosphere Keep Product Surfaces Clean and Dry To avoid the influence of dust and or moisture in air please keep the surface of device clean and dry Electrostatic Prevention Operate in an electrostatic discharge protective area environment to avoid damages induced by static discharges Always ground both the internal and external conductors of the cable to release static before connecting Handling Safety Please handle with care during transportation to avoid damages to keys knob and interfaces as well as other parts on the panels The disturbance tests of all models conform to the P F values of A based on the standard of EN 61326 1997 A1 A2 A3 instead of P F values of B User s Guide for DM3068 Hl RIGOL I nput Terminal Protection Limit The protection limit applies to input te
70. etermined by the input signal frequency Input Frequency AC Filter 3 Hz to 300 kHz Slow 20 Hz to 300 kHz Mid 200 Hz to 300 kHZ Fast In ACV ACI or FREQ PERIOD measurement press gt Filter to enter the following interface RC Sareea ii ie Press Slow Mid or Fast to select 3 Hz 20 Hz or 200 Hz as the lowest frequency of the AC filter The default is 20 Hz MEDIUM User s Guide for DM3068 2 45 RIGOL Chapter 2 Front Panel Operations Short Circuit Resistance This function only applies to continuity test When the measured circuit has a resistance lower than the short circuit resistance the circuit is considered as connected and the beeper sounds if sound is on The default short circuit resistance is 10 O and the setting is stored in nonvolatile memory When continuity test is enabled press Conti to enter the following interface Continue Resistance Conti Set a desired value using the direction keys The range is from 1 Q to 2000 Q 2 46 User s Guide for DM3068 Chapter 2 Front Panel Operations RIGOL Current Source Current source applies to the diode measurement function The current selected is applied to the diode under test and the multimeter measures the voltage drop between the two ends of the diode to determine the polarity of the diode Note when measuring diode with relatively larger drain current do not use the small current source as the forward volta
71. ew history data Up to 5000 latest measured data can be viewed Press History to enter the following interface Measurement 2VVR Range 20060 Records 1 HistoG Update Save Measurement AH Range 20060 Records 1 HistoG Update Save Press Info and use the up and down direction keys to view the measurement item measurement range number of values maximum User s Guide for DM3068 2 15 RIGOL Chapter 2 Front Panel Operations minimum average and standard deviation Press List and use the up and down direction keys or the menu softkeys to view all the measurement results before the last update in table form Press HistoG to view the histogram of the average AVG and standard deviation SDEV Press Update to update the Records Maximum Minimum Average and SDEV under Info and the display in List and HistoG Press Save to enter the store and recall interface at this point is illuminated You can save the current measurement data into internal memory or external USB storage device For details please refer to the introduction in Save and Recall 8 Hide the menu Press Hide to hide the operation menus for easier observation of the measurement result Press any softkey again to display the operation menus User s Guide for DM3068 Chapter 2 Front Panel Operations RIGOL To Measure Capacitance Range 2 nF 20 nF 200 nF 2 pF 20 pF 200 pF 2 mF 20 mF 100 mF Max Resolution
72. ferent from the actual temperature at the cold junction compensation point If external cold junction compensation equipment is used the thermocouple voltage signal compensated can not be connected to the banana jack through the compensation lead otherwise additional cold junction error will be caused The accuracy of the measurement when using simulated cold junction depends on the accuracy of cold junction compensation To use the TC sensor you should select the type of the thermocouple and the compensation mode of the cold junction Press TC gt Type to select the desired thermocouple type and press x Press TC gt JUNC select INT or SIM to input correct cold junction temperature with 273 and 999 and then press zx 2 34 User s Guide for DM3068 Chapter 2 Front Panel Operations RIGOL RTD RTD is a temperature detector commonly used in medium low temperature range It features in high measurement accuracy and stable performance It measures the temperature depending on the changing resistance of the measured substance with the temperature The multimeter will display the temperature corresponding to the resistance when the resistance changes This kind of sensor has good linearity The multimeter adopts the approximate arithmetic of EC751 standards and converts the resistance signal from the temperature sensor into the related temperature for displaying For the reference table about each RTD please refer to the related standards
73. ge drop measured might be too low to determine the polarity of the diode In DIODE measurement press to enter the following interface The current sources available are 1 mA 100 uA 10 pA 2 uA and 200 nA and the corresponding voltage ranges are 0 2 V 2 2 V 0 2 V 4 2 V 0 2 V 4 8 V 0 2 V 5 2 V and 0 2 V 5 5 V You can also press to select the desired current source 1 QuA 104A 2uA 200nA f User s Guide for DM3068 2 47 RIGOL Chapter 2 Front Panel Operations Gate Time Gate time also called Aperture Time applies to FREQ PERI OD function It decides the resolution of low frequency measurement The longer the gate time is the higher the resolution of the low frequency measurement is and the slower the measurement is and vice versa For details please refer to Specifications In FREQ PERIOD measurement press gt GATE to enter the following interface ims 10ms 1s t The gate time can be set to1 ms 10 ms 100 ms or 1 s and the default is 100 ms You can select a desired gate time by pressing the corresponding softkey 2 48 User s Guide for DM3068 Chapter 2 Front Panel Operations RIGOL Math Operations DM3068 provides basic math operations STA P F dBm dB and REL for measurement results and displays the history data through tendency graph and histogram In DCV ACV DCI ACI 2WR 4WR CAP FREQ PERI OD or SENSOR measurement press to enter the following interface
74. hapter contains the following topics Loading Errors DCV True RMS AC Measurements Crest Factor Errors non sinusoidal inputs Loading Errors ACV User s Guide for DM3068 5 1 RIGOL Chapter 5 Measurement Tutorial Loading Errors DCV Measurement loading errors occur when the resistance of the device under test DUT takes up a certain percentage in the multimeter s own input resistance The diagram below shows this error source Rs MEM j NAA c HI lt co Ri LOO Vs ideal DUT voltage Rs DUT source resistance Ri input resistance of the multimeter 10 MQ or gt 10 GQ 100x R Error ARAM d Rs Ri To reduce the effect of loading errors and noise interference you can set the input resistance of the multimeter to gt 10GQ for 200 mV 2 V and 20 V ranges and 10MQ for the 200 V and 1000 V ranges 5 2 User s Guide for DM3068 Chapter 5 Measurement Tutorial RIGOL True RMS AC Measurements The AC measurement of DM3068 has true RMS response The average thermal power of the resistor over a certain period is directly proportional to the square of the true RMS of the voltage of the resistor over this period of time regardless of the waveform shape DM3068 can accurately measure the true RMS voltage or current if the energy of the voltage or current waveform outside the effective bandwidth of the multimeter can be ignored The effective AC voltage bandwidth of DM3068 is 800 kHz and
75. he source name DM3068 TCPIP 172 16 3 32 I NSTR and then select SCPI Panel Control to open the remote command control panel from which you can send commands and read data as shown in the figure below Connected to TCPIP 172 16 User s Guide for DM3068 3 9 RIGOL Chapter 3 Remote Control 6 Load LXI Web Page As the instrument conforms to LXI C standards you can load LXI web page through Ultra Sigma right click the resource name and select LXI Web Various important information about the instrument including the model number manufacturer serial number description MAC address and IP address will be displayed on the webpage Please refer to Web Page Control RIGOL Web Enable DM3068 RIGOL gt gt ke y RIGOL Web Products Service amp Support FEE Welcome Il Page VISA TCPIIP String Welcome to Web of DM3068 Digital Multimeter QE Network E3 Statue Instrument Model DM3068 Manufacturer Rigol Technologies Network T Settings Serial Number DM30020110512 Description Web z mE Control E c Je GS 12 Help HostName 172 16 3 32 MAC Address 00 01 02 03 04 05 e Security b IP Address 172 16 3 32 Firmware Revision 01 01 00 01 07 00 TCPIP0 172 16 3 32 INSTR 1 Auto MDIX Capable NO VISA USB Connect String L ep Identification Indicator 3 10 User s Guide for DM3068 Chapter 3 Remote Control RIGOL Remote Control via GPI
76. he specified type of edge User s Guide for DM3068 2 63 RIGOL Chapter 2 Front Panel Operations Trigger Output Press gt VMC to enter the following interface From this interface you can enable or disable the trigger output When it is enabled the multimeter outputs a negative pulse from the VM Comp connector after each measurement 2 64 User s Guide for DM3068 Chapter 2 Front Panel Operations RIGOL Save and Recall The multimeter allows you to save the system configuration or measurement data into the internal memory or an external USB storage device and recall it when required Press to enter the following interface PO MIRR CEG N i Lens vealed Figs Disk Type Read Save Erase d Disk choose a desired storage location C indicates the internal memory while A indicates the external USB storage device Type choose a desired file type for storing or reading Please refer to Storage Type e Read read the selected file This menu is available only when the current disk contains the specified type of file Save enter the filename input interface This menu is available only when the current disk allows the specified type of file Erase clear the selected file This menu is available only when the current disk contains the specified type of file User s Guide for DM3068 2 65 RIGOL Chapter 2 Front Panel Operations Storage Type The multimeter
77. ically goes to the measurement main interface as shown in the figure below DEY The status bar displays dB The dB operation result is displayed at the center of the screen The current measurement reading and the dB preset value are displayed at the lower left corner and lower right corner of the screen respectively User s Guide for DM3068 2 55 RIGOL Chapter 2 Front Panel Operations REL The reading displayed on the screen in REL operation is the difference between measured and preset values Reading measured value preset value Users can pre specify a REL value by any of the following way 1 In basic measurement interface press REL and the multimeter automatically uses the current measurement result as the preset value 2 In basic measurement interface press gt Math gt REL to enter the preset value setting interface 3 In basic measurement interface press gt REL to enter the preset value setting interface In the preset value setting interface you can directly use the direction keys to specify a preset value The unit is decided by the current measurement function REL OFF Current Clear Current set the preset value to the current reading Clear restore the preset value to 0 On Off enable or disable REL operation When it is on pressing will go to the measurement main interface as shown in the figure below DCV i Auto 10 REL The status bar displays
78. ickly build a testing system and easily realize LAN based system integration 3 GPIB Conform to EEE 488 2 standards 4 Power Socket The multimeter accepts two types of AC supplies Please use the power cord provided in the accessories to connect the multimeter to the AC power through this socket Note a proper voltage scale must be first selected through the Voltage Selector before power connection Figure 1 7 Connect the Power Cord 5 VMC The mutlimeter outputs a low true pulse from the VM Comp connector after every measurement when VM output is enabled E gt VMC gt ON 1 10 User s Guide for DM3068 Chapter 1 Quick Start RIGOL 6 Et Tig Trigger the multimeter by connecting a trigger pulse through the Ext Trig connector Note the external trigger source must be selected gt Source gt Ext 7 USB Device Connect the PC through this interface You can use SCPI commands or PC software to control DM3068 remotely 8 RS232 Connect the PC through this interface You can use SCPI commands or PC software to control DM3068 remotely You can also use this interface to output the P F test result 9 Power Fuse The multimeter is already installed with a power fuse before leaving factory To replace a new one please 1 Turn off the multimeter and remove the power cord 2 Press down the block tongue using a straight screwdriver in the direction of the dotted arrow in the figure below and pull out of the fuse sea
79. ilable in all ranges and a 1096 overrange is available on all ranges except 750 V If the reading exceeds 787 5 V in 750 V range OVER LOAD will be displayed Operating Steps 1 Enable the ACV measurement Press at the front panel to enter the following interface ACY i Auto 20Hz 2 Make connection Connect the test lead with the measured signal by referring to Measurement Connections 3 Set the range Specify an appropriate range the resolution is fixed at 61 digits according to the measured signal and measurement requirements A high voltage icon 5 will be displayed at the upper left corner of the screen when the 750 V range is selected 4 Setthe measurement parameters Optional The ACV measurement allows users to configure the filter For details please refer to Measurement Configuration 5 Readthe measurement value The multimeter measures the input signal according to the current measurement settings and displays the value on the screen For AC signal you can also measure the frequency of the signal During the ACV measurement press and then press Fea the measurement result is as User s Guide for DM3068 2 7 RIGOL Chapter 2 Front Panel Operations 6 2 8 shown in the figure below ACY i Auto 20Hz LXI Make math operation advanced Users can perform math operation STA P F dBm dB and REL on each ACV measurement reading For REL operation the multimeter subtracts the pr
80. in the figure below Input the old password and then input the new password twice press Apply and a message is displayed indicating that the password setting succeeds the password modification of the network setting of network control function succeeds Beyond Measure M D d Security For All Changes of Configuration Old Password oo some New Passwort rn Contam ere c ER Coon Lani B lt LXI 6 Press LXI to enter the official website of the LXI association http www Ixistandard org to view information of the standard 3 4 User s Guide for DM3068 Chapter 3 Remote Control RIGOL Command Control DM3068 can be remotely controlled using commands in two ways User Defined Programming Users can program and control the multimeter using standard SCPI Standard Commands for Programmable Instruments commands For more details about commands and programming please refer to the Programming Guide of DM3068 Use Software Offered by RIGOL or Others Users can use Ultra Sigma from RIGOL Measurement amp Automation Explorer from NI National Instruments Corporation or Agilent I O Libraries Suite from Agilent Agilent Technologies Inc to send commands to control the instrument remotely DM3068 uses USB LAN RS232 or GPIB interface to communicate with PC The next part will introduce how to control the instrument remotely using Ultra Sigma through various interfaces in details To obtain the softwar
81. ing information about TCP IP and network hardware RINSE EEA 3 2 User s Guide for DM3068 Chapter 3 Remote Control RIGOL 2 Press Network Settings to enter the interface as shown in the figure below 5 2 yo RIGOL E Ee IP Settings LT Ez C_N eaea meae Set the IP via this interface press Apply to enable the modification and press Cancel to disable this setting To restore to factory setting press LAN Configuration Initialize Explanation The password input box is displayed and the correct user name and password are required when using the Network Settings function if the multimeter has had a password set on it the default user name and password are empty 3 Press Web Control to enter the instrument web page control interface At this point you can configure the related parameters and acquire the measurement result FEBCONTROL MIN 208 1815uV MAX 288 3415uV AVER 253 2592uV SDEV 26 25268uV COUNT 20 Function DC Input Resistance note lm 10M 10G Null Value parameter can take any value between 11096 and 11096 ofthe highest Autozero range for the currently selected function X On Integration time 10NPLC X Math Funtions v Enable Math Statistics APPLY STOP User s Guide for DM3068 3 3 RIGOL Chapter 3 Remote Control 4 Press Help to enter the interface as shown in the figure below to acquire the instrument information and network
82. ing the voltage selector at the rear panel 2 Connect the multimeter to the AC power supply using the power cord provided in the accessories 2 Turn On the Multimeter Turn on the power switch under the power socket and the power button at the front panel Note that the multimeter will directly start after you turning on the rear power switch if the front power button is disabled Git gt System gt Cfg gt Switch gt OFF 3 Start up Process 1 Normal start the multimeter executes self test and then enters the user interface 2 Start with a USB storage device containing update file inserted the multimeter directly updates if an update file is detected and then starts 4 Ifthe multimeter does not starts normally please 1 Make sure the power cord is in good connection 2 Make sure the rear power switch is turned on 3 Try to restart the multimeter if it fails check the power fuse and replace a new one when necessary 4 Ifthe problem still remains please contact RIGOL 1 14 User s Guide for DM3068 Chapter 1 Quick Start RIGOL Measurement Connections DM3068 is designed with many measurement functions After selecting the desired measurement function please connect the signal device under test to the multimeter according to the method below Do not discretionarily switch the measurement function when measuring as it may cause damage to the multimeter For example when the test leads are connected to the related cur
83. is less 200 mV range is full range input or input that is larger than the full range For 20 mV to 200 mV inputs multiply 96 of reading error by 10 User s Guide for DM3068 6 11 RIGOL 3 Relative to calibration standards Measuring Characteristics Chapter 6 Specifications Frequency and Period Measurement Method Reciprocal counting technique AC coupled input using the AC voltage function Input Impedance 1 MQ 2 in parallel with 150 pF capacitance on any range Input Protection Measurement Considerations 750 V rms on all ranges All frequency counters are susceptible to error when measuring low voltage low frequency signals Shielding inputs from external noise pickup is critical for minimizing measurement errors Settling Considerations Errors will occur when attempting to measure the frequency or period of an input following a dc offset voltage change The input blocking RC time constant must be allowed to fully settle about 1 s before the most accurate measurements are possible 6 12 User s Guide for DM3068 Chapter 6 Specifications RIGOL Capacitance Characteristics Accuracy Specifications of reading of range DUZ Function Range Test Current 1Year Temperature Coefficient Tear C 5 C OC to Tca C 5 C Teca C 5 C to 50 C Capacitance 2 000 nF 200 nA 242 5 0 05 0 05 20 00 nF 2 uA 14 0 3 0 05 0 01 200 0 nF 10 uA
84. isconception is that since a multimeter can measure the true RMS of signal its sine wave accuracy specifications apply to all waveforms Actually the waveform shape of the input signal can affect the measurement accuracy A common way to describe the signal wave shape is crest factor Crest factor is the ratio of the peak value to RMS value of a waveform In general the greater the crest factor is the greater the energy contained in high frequency harmonics will be All multimeters have errors that are relevant to the crest factor Crest factor errors of DM3068 are listed in AC Characteristics in chapter 6 You can estimate the measurement error due to signal crest factor according to the equation below Total Error Error Sine wave Error Crest factor Error Bandwidth Error Sine wave sine wave error as shown in chapter 6 Error Crest factor additional crest factor error as shown in chapter 6 Error Bandwidth bandwidth error can be estimated according to the formula below 2 Bandwidth Error EE oy reading mx BW C F signal crest factor F pulse fundamental wave frequency BW multimeter s effective bandwidth Example Calculate the approximate measurement error for a pulse train with a crest factor of 2 and a fundamental frequency of 20 kHz Assume that the multimeter s 1 year accuracy is 0 0596 x reading 0 0396 xrange Total Error 0 0596 xreading 0 0396 xrange 0 0596 xrange 0 896 x
85. llowing safety precautions carefully before putting the instrument into operation so as to avoid any personal injuries or damages to the instrument and any product connected to it To prevent potential hazards please use the instrument only specified by this manual Use Proper Power Cord Only the power cord designed for the instrument and authorized by local country could be used Ground The I nstrument The instrument is grounded through the Protective Earth lead of the power cord To avoid electric shock it is essential to connect the earth terminal of power cord to the Protective Earth terminal before any inputs or outputs Observe All Terminal Ratings To avoid fire or shock hazard observe all ratings and markers on the instrument and check your manual for more information about ratings before connecting Use Proper Overvoltage Protection Make sure that no overvoltage such as that caused by a thunderstorm can reach the product or else the operator might expose to danger of electrical shock Do Not Operate Without Covers Do not operate the instrument with covers or panels removed Use Proper Fuse Please use the specified fuses Avoid Circuit or Wire Exposure Do not touch exposed junctions and components when the unit is powered I User s Guide for DM3068 RIGOL Do Not Operate With Suspected Failures If you suspect damage occurs to the instrument have it inspected by qualified service personnel before further op
86. meter takes the first reading as the maximum or minimum for displaying The reading shown on the screen is always the maximum or minimum within the current readings when measuring more consecutive readings The measurement interface displays the maximum or minimum reading current measurement value and number of samples When AVGis selected the multimeter always displays the average value of all the current readings The measurement interface displays the average value current measurement value and number of samples e When All is selected the measurement interface displays the current measurement value as well as the maximum minimum average and mean square deviation of the measured readings and number of samples User s Guide for DM3068 2 51 RIGOL Chapter 2 Front Panel Operations P F P F operation prompts the signal testing result message display and beep according to the specified high and low limit parameters and outputs a negative pulse through the RS232 interface at the rear panel As shown in the figures below the multimeter outputs a negative pulse from the Pin 1 or Pin 9 if the test succeeds or fails Negative Pulse Pin 1 Pin 9 Press P F to enter the following interface Press High or Low and enter a desired value using the direction keys Note that the high limit should always be greater than the low limit and the unit is decided by the current measurement function The range of the limit is from 11
87. multimeter takes one or specified number of readings every time you press External Trigger Press Ext and Done to enable the external trigger The backlights of both and at the front panel then go off The multimeter will then receive the trigger pulse from the Ext Trig connector at the rear panel and trigger at the specified edge of the pulse signal and acquire measured data Level Trigger This mode applies to DCV DCI OHM measurement functions Press Level and enter a desired level using the direction keys then press Done to enable the level trigger The backlights of both and at the front panel then go off The multimeter will trigger on the positive or negative edge of the input signal when the input level passes through the specified trigger level and acquire measured data Tip Pressing in remote mode will switch the multimeter into local mode User s Guide for DM3068 2 61 RIGOL Chapter 2 Front Panel Operations Reading Hold The multimeter captures stable reading and holds it on the screen when the reading hold function is enabled The sensitivity range determines whether the reading is stable enough and can be displayed on the screen This parameter is expressed in the form of reading percentage based on the current range The multimeter will not capture and display new reading until three continuous readings exceed the selected sensitivity range Press gt Hold gt On Off to enter the following interface
88. n keys to view the measurement item measurement range number of values maximum minimum average and standard deviation Press List and use the up and down direction keys or the menu softkeys to view all the measurement results before the last update in table form Press HistoG to view the histogram of the average AVG and standard deviation SDEV Press Update to update the Records Maximum Minimum Average and SDEV under Info and the display in List and HistoG Press Save to enter the store and recall interface at this point is illuminated You can save the current measurement data into internal memory or external USB storage device For details please refer to the introduction in Save and Recall 7 Hide the menu Press Hide to hide the operation menus for easier observation of the measurement result Press any softkey again to display the operation menus 2 18 User s Guide for DM3068 Chapter 2 Front Panel Operations RIGOL To Measure Continuity Test Current Source 1 mA Max Resolution 0 1 Q the range is fixed at 2 kQ I nput Protection 1000 V Input Protection Open circuit Voltage 8 V Beep Threshold short circuit resistance from 1 O to 2000 Q Operating Steps 1 Enable the CONT measurement Press at the front panel to enter the following interface Set Hide 2 Make connection Connect the test lead with the measured circuit by referring to Measureme
89. nce 200MA Fused on 500Vpk Rear Panel Continuity Measurement Sense Input Q AW VO rFd Rear Panel gt Fused 1 16 Resistance Measurement 4 wire 200Vpk 200mARMS 1000VDC 750V Rear Panel Fused Diode Measurement Sense Input Q4W VO HE 200Vpk 200mARMS 1000VDC 750VAC Fused on 500Vpl Rear Panel Fused User s Guide for DM3068 Chapter 1 Quick Start Frequency Period Measurement Sense Input Q4W VO gt HI 200Vpk 200mARMS 1000VDC AC Signal LO 200mA m Fused on 500Vpk Rear Panel Fused Any Sensor Measurement For DCI sensor Sense Input Q AW VO gt 200Vpk used on 500Vpk ear Panel gt Sensor RIGOL Any Sensor Measurement For DCV 2WR FREQ TC 2W RTD and 2W THERM sensors I 200Vpk 200mA RMS 1000VDC OMA RMS FAC Sensor LO 200mA Fused on 500Vpk Rear Panel Fused Any Sensor Measurement For 4WR 4W RTD and 4W THERM sensors 200Vpk Rear Panel Fused Note before setting the parameters for DCI sensor when using it please connect it according to the figure above and press E gt mA User s Guide for DM3068 1 17 RIGOL Chapter 1 Quick Start To Use the Built in Help System The built in help system of DM3068 provides using help for all the front panel keys and menu softkeys as well as the using method of the built in help Press to enter the following interface 1
90. ncy Period Measurements FREQ PERIOD Senso Any Sensor Measurements SENSOR such as DCV DCI 2WR 4WR FREQ TC thermoelectric couple RTD resistance temperature detectors and THERM thermistor Common Function Keys Quickly save or recall 10 groups of instrument settings Secondary Function key Enable the dual display function Quickly save the current instrument configuration when used in conjunction with C Quickly enter the setting interface of relative measurement REL User s Guide for DM3068 Chapter 1 Quick Start RIGOL 7 Menu Operation Keys Press any softkey to activate the corresponding menu 8 Advanced Operation Menus Save Set all the measurement parameters Perform math operations statistic P F dBm dB REL on the measurement results and provide real time tendency graph and histogram display Provide auto single external and level trigger enable to set the reading hold function number of samples per trigger delay time before reading and edge of the trigger input signal as well as the trigger output parameter Save the system configuration and measurement data into internal memory or external USB storage device and recall or delete them when required Select command set for the multimeter configure the interface parameters and system parameters execute self test and view the system information and error messages Provide help information for common operations and the us
91. nput Protection the multimeter uses two kinds of fuses for current protection the small current input fuse 500 mA high speed fuse and the built in large current input fuse 10 A 10 overrange is available on all ranges except 10 A If the reading exceeds 10 5 A in 10 A range OVER LOAD will be displayed In order to obtain more accurate measurement results DM3068 deals with small and large input currents separately The multimeter will use small current measurement mode for current within 200 mA and use large current measurement mode for current that is equal to or higher than 2 A Operating Steps 1 Enable the DCI measurement Press at the front dd to enter the following interface CI Auto j 200 000 U A 2 Make connection Connect the test lead with the measured signal by referring to Measurement Connections 3 Set the range and resolution Specify an appropriate range and resolution according to the measured signal and measurement requirements A high voltage icon 5 will be displayed at the upper left corner of the screen when the 10 A range is selected 4 Set the measurement parameters Optional The DCI measurement allows users to configure the integration time and auto zero For details please refer to Measurement Configuration User s Guide for DM3068 2 9 RIGOL Chapter 2 Front Panel Operations 5 Read the measurement value The multimeter measures the input signal according to th
92. nput numbers 0 9 Del delete the character where the cursor locates 6 Done finish the name entry sf return to the upper level menu 2 68 User s Guide for DM3068 Chapter 2 Front Panel Operations RIGOL Utility Set the parameters of the system related functions Press to enter the following interface Cmd select a desired command system from those supported by DM3068 1 0 configure remote control interfaces such as LAN System set the system parameters such as language T C execute self test and view error information Command Set DM3068 supports the command sets of RIGOL DM3068 Agilent 34401A and Fluke 45 Press gt Cmd to enter the following interface from which you can choose a desired command set DM3068 Agilent Fluke For more information about commands please refer to the Programming Guide of DM3068 User s Guide for DM3068 2 69 RIGOL Chapter 2 Front Panel Operations I nterface Configurations Users can control DM3068 remotely by configuring the remote interfaces LAN GPIB USB configuration free and RS232 Press 2 O to enter the following interface c OTRA USB0 5833 3220 DM3A20100308D 0 INSTR LAN GPIB RS232 t 2 70 User s Guide for DM3068 Chapter 2 Front Panel Operations RIGOL TO Set the LAN The LAN configuration parameters conform to LXI C standards Before using this interface connect the multimeter
93. nt Connections 3 Setthe short circuit resistance Press Set and enter a desired value using the direction keys The range is from 1 Q to 2000 Q and the default is 10 Q 4 Readthe measurement value The circuit is considered to be connected when the measured circuit has a resistance lower than the specified short circuit resistance The actual resistance value is displayed on the screen and the beeper sounds if the sound is on When the measured circuit has a resistance that is between the specified short circuit resistance and 2 2 kQ the actual resistance value is displayed but the beeper does not sound When the measured circuit has resistance greater than 2 2 KQ OPEN is displayed on the screen but the beeper does not sound User s Guide for DM3068 2 19 RIGOL Chapter 2 Front Panel Operations 5 Hide the menu Press Hide to hide the operation menus for easier observation of the measurement result Press any softkey again to display the operation menus 2 20 User s Guide for DM3068 Chapter 2 Front Panel Operations RIGOL To Measure Diode Test Current Source 1 mA 100 pA 10 uA 2 pA 200 nA Voltage Measurement Range 0 2 V 2 2 V 0 2 V 4 2 V 0 2 V 4 8 V 0 2 V 5 2 V 0 2 V 5 5 V Max Resolution 100 pV I nput Protection 1000 V Input Protection Open circuit Voltage 8 V This function measures the forward voltage drop on the diode Note in diode measurement please connect the diode an
94. nterface from which you can turn on or off the output of measured data from serial ports 2 76 User s Guide for DM3068 Chapter 2 Front Panel Operations RIGOL System Configuration To Select the Language DM3068 supports English Chinese menus and built in helps All the messages context helps and help topics are displayed in the language selected Press gt System gt Lang to enter the following interface and choose a desired language To Set the Display Parameter Press System Disp to enter the following interface 1 Bright Press Bright and set an appropriate brightness within 0 and 32 using the direction keys This setting is stored in nonvolatile memory 2 Contr Press Contr and set an appropriate contrast within 0 and 32 using the direction keys This setting is stored in nonvolatile memory 3 Invert Press Invert to switch the screen between normal and invert display The default is normal User s Guide for DM3068 2 71 RIGOL Chapter 2 Front Panel Operations To Set the Sound Press gt System gt Sound to enter the following interface atl Cfg Clock You can enable or disable the beeper for front panel key operations and short circuit test The setting is stored in nonvolatile memory To Set the Number Format Press gt System gt Format to enter the following interface 1 Deciml Set the display format of the decimal point on the screen to or
95. o open the operation menu as shown in figure below Max 4 337919 v 000 06 51 Min 481 WM AM AI Stat PrScn Start enable the multimeter to redraw the graph according to the current User s Guide for DM3068 2 57 RIGOL Chapter 2 Front Panel Operations measurement data PrtScn save the current tendency graph under the root directory of an external USB storage device in BMP format Note make sure that a USB storage device is correctly connected before using this function Hide hide the operation menu 2 58 User s Guide for DM3068 Chapter 2 Front Panel Operations RIGOL Histogram The real time histogram displays the distribution situation of the measurement data from DCV DCI ACV ACI 2WR and 4WR CAP FREQ PERIOD and SENSOR Note that different from the histogram in basic measurements ED gt History gt HistoG the histogram changes in real time Press gt HISTO to enter the following interface The average AVG standard deviation SDEV and a histogram of measured data are displayed on the screen and update accordingly during the measurement AVG 866 596 1 nU Press any soft menu at this moment will open the operation menu as shown in figure below AUG 866 579 4m SDEU 623 866 9uV Stop Info Hide t Press Stop the multimeter stops updating histogram and enters the following interface AUG a806 579 4nmU SDEV 623 866 9uV Start enable the multimeter to
96. on and integration time Resolution I ntegration time Status bar display 51 0 006 PLC 0 006 0 02 PLC 0 02 0 06 PLC 0 06 0 2 PLC 0 2 1PLC 1 61 2 PLC 2 10 PLC 10 100 PLC 100 2 In ACV and ACI measurements the resolution is fixed at 6 digits Press the left and right direction keys to set the filter type Table 2 2 Relationship between the frequency and speed of AC filter Resolution AC filter Speed Status bar display 61 200 Hz Fast 200 Hz 61 20 Hz Mid 20 Hz 61 3Hz Slow 3Hz 3 In FREQ and PERIOD measurements the resolution is fixed at 61 digits Press the left and right direction keys to set the gate time User s Guide for DM3068 2 3 RIGOL Chapter 2 Front Panel Operations Table 2 3 Relationship between the resolution and gate time Resolution Gate Time Status bar display 61J 1ms 1ms 6 10 ms 10 ms 61 3 100 ms 100 ms NE ls 1s 4 The resolution is 34 in CAP measurement 5 The instrument always displays three digits after the decimal point in SENSOR measurement 6 The instrument always displays one digit after the decimal point in CONT measurement 7 The resolution is 5 in DIODE measurement 2 4 User s Guide for DM3068 Chapter 2 Front Panel Operations RIGOL Basic Measurement Functions To Measure DC Voltage Range 200 mv 2 V 20 V 200 V 1000 V Max Resolution 100 nV in the range of 200 mV
97. ork parameters such as IP address subnet mask and gateway Press Manual to turn on the ManuallP configuration mode and the multimeter enters the following interface To enable this mode neither DHCP nor AutolP should be ON Mask Gate e 1PAddr The format of IP address is nnn nnn nnn nnn for example 172 16 3 32 You are recommended to ask your network administrator for an available IP address Press PAddr and enter the desired IP address using the direction keys e Mask 2 72 User s Guide for DM3068 Chapter 2 Front Panel Operations RIGOL The format of subnet mask is nnn nnn nnn nnn for example 255 255 255 0 You are recommended to ask your network administrator for an available subnet mask Press Mask and enter the desired subnet mask using the direction keys Gate The format of gateway is nnn nnn nnn nnn for example 172 16 3 1 You are recommended to ask your network administrator for an available gateway Press Gate and enter the desired gateway using the direction keys 3 To Set Domain Name Server The format of domain name server DNS address is nnn nnn nnn nnn for example 202 96 199 133 You are recommended to ask your network administrator for an available address Press DNS and enter the desired address using the direction keys Note that users generally do not need to set the domain name server address and this parameter configuration can generally be ignored 4 To Apply Network Parameters P
98. outward then rotate the handle to a desired position see figure below eee et x 090 S0 9 9 C3 O ooo Cx ono a d B E Viewing Position Carrying Position b Figure 1 2 Place the Multimeter User s Guide for DM3068 1 3 RIGOL Chapter 1 Quick Start Appearance and Dimensions 231 6 107 0 Y Figure 1 3 Front View Unit mm 290 5 HR N ip E L Figure 1 4 Side view Unit mm 1 4 User s Guide for DM3068 Chapter 1 Quick Start RIGOL Front Panel 1 USB Host 2 LCD 3 Auto Trigger Reading Hold 4 Single Trigger Local Mode DM3068 DIGITAL MULTIMETER LXI 67 bisits 5 Power Button 7 Menu Operation Keys 9 Range Direction Keys 6 Measurement Function Keys 8 Advanced Operation Menus 10 Signal Input Terminals Figure 1 5 Front Panel Overview 1 USB Host USB storage device can be connected via this interface By using this interface the system configuration or measurement data can be stored into USB storage
99. p shown on the screen indicates that the result is unreliable New Edit Load Histo EL Disp If you suspect the stored any sensor configuration files or data press Edit to make a modification User s Guide for DM3068 Chapter 2 Front Panel Operations RIGOL Temperature sensor DM30668 can directly measure the temperature using TC Thermocouple RTD Resistance Temperature Detector and THERM Thermistor sensors For different temperature sensor the conversion form and conversion characteristics of temperature and electrical signal are different For different models of the same type of sensor the characteristic parameters and temperature electrical signal corresponding relations are different A temperature sensor that conforms to ITS 90 standards should be used for measurement Temperature Type Unit Done f Type choose a desired temperature sensor type from TC RTD and THERM and set the related parameters Unit choose the unit of the measured temperature from C F and K The conversion relations between these units are F 2 9 5 C 32 KC 273 15 Done save or apply the current temperature sensor configurations Press d to return to the upper level menu For the temperature sensor measurement connect the test lead and device under test by referring to the connection method in Measurement Connections The following parts introduce the measurement parameters of each temperat
100. re the correctness of the first reading for most measurements Measurement Considerations Teflon or other high impedance low dielectric absorption wire insulation is recommended for these measurements User s Guide for DM3068 6 5 RIGOL Chapter 6 Specifications AC Characteristics Accuracy Specifications of reading of range Function Range Frequency Range 24 Hour 90 Day 1 Year Temperature Tear C Z LC Tear C 5 C Tear C 5 C Coefficient OC to Tcu C 5C TcAL C 5 C to 50 C True RMS AC 200 0000 mV 3Hz 5Hz 1 00 0 03 1 00 0 04 1 00 0 04 0 100 0 004 Voltage Y 5 Hz 10 Hz 0 35 0 03 0 35 0 04 0 35 0 04 0 035 0 004 10 Hz 20 kHz 0 04 0 03 0 05 4 0 04 0 06 0 04 0 005 0 004 20 kHz 50 kHz 0 10 4 0 05 0 11 4 0 05 0 12 0 05 0 011 0 005 50 kHz 100 kHz 0 55 0 08 0 60 0 08 0 60 0 08 0 060 0 008 100 kHz 300 kHz 4 00 0 50 4 00 0 50 4 00 0 50 0 20 0 02 2 000000 V 3 Hz 5 Hz 1 00 0 02 1 00 0 03 1 00 0 03 0 100 0 003 5 Hz 10 Hz 0 35 0 02 0 35 0 03 0 35 0 03 0 035 0 003 10 Hz 20 kHz 0 04 0 02 0 05 0 03 0 06 0 03 0 005 0 003 20 kHz 50 kHz 0 10 4 0 04 0 11 0 05 0 12 4 0 05 0 011 0 005 50 kHz 100 kHz 0 55 0 08 0 60 0 08 0 60 0 08 0 060 0 008 100 kHz 300 kHz 4 00 0 50 4 00 0 50 4 00 0 50 0 20 0 02 20 00000 V 3 Hz 5 Hz 1 00 0 03 1 00 0 04 1 00 0 04 0 100 0 004 5 Hz 10 Hz 0 35 0 03 0 35 4 0 04 0 35 0 04 0 035 0 004 10 Hz 20 k
101. reading 20 8596 gt reading 0 0896 xrange User s Guide for DM3068 5 5 RIGOL Chapter 5 Measurement Tutorial Loading Errors ACV In the AC Voltage function the input impedance of DM3068 appears as a 1 MQ resistance in parallel with 100 pF of capacitance The test lead of the multimeter will also add additional capacitance and load The table below gives the multimeter s approximate input resistance at various frequencies Table 5 2 Resistances at various frequencies Input Frequency Input Resistance 100 Hz 1 MQ 1 kHz 850 kQ 10 kHz 160 kQ 100 kHz 16 kQ For low frequencies R Loading Error x 100 Rs 1MQ Additional error for high frequencies Loading Error l 1 x 100 Jl 2Q2xFxR xC R internal resistance of the signal generator F input frequency C input capacitance 100 pF plus test lead capacitance in 5 6 User s Guide for DM3068 Chapter 6 Specifications Chapter 6 Specifications DC Characteristics RIGOL Accuracy Specifications of reading of range Temperature Function Range Test Current or 24 Hour 90 Day 1 Year Coefficient Load Voltage Tear YC LC Tea C 5 C Tcu C 5 C OC to Tca C 5 C Tca C 5 C to 50 C 200 0000 mV 0 0020 0 0020 0 0030 0 0025 0 0040 0 0025 0 0005 0 0005 2 000000 V 0 0015 0 0005 0 0020 0 0006 0 0035
102. rements with the HI and LO inputs connected to mains in such devices up to 300 VAC or to the branch socket itself However DM3068 may be used with its HI and LO inputs connected to mains from neither permanently installed electrical device such as a main circuit breaker panel sub panel disconnected box nor wired motors Such devices and circuits are readily to beyond the protection from DM3068 Note voltages above 300 VAC may be measured only in circuits that are isolated from mains However a transient overvoltage is also present in such circuits DM3068 was designed to safely withstand occasional transient overvoltage up to 2500 Vpk Do not use this device to measure circuits whose transient overvoltage may exceed this level User s Guide for DM3068 V RIGOL Safety Terms and Symbols Terms in this Manual These terms may appear in this manual A WARNI NG Warning statements indicate the conditions or practices that could result in injury or loss of life A CAUTI ON Caution statements indicate the conditions or practices that could result in damage to this product or other property A CAT I 1000V IEC Measurement Category The maximum voltage can be measured by HI LO terminal is 1000 Vpk A CAT II 300V IEC Measurement Category Il Inputs may be connected to mains up to 300 VAC in the case of overvoltage in Category Il Terms on the Product These terms may appear on the product DANGER
103. rent terminals AC voltage measurement should not be taken DCV Measurement Sense Input Q4W VO rd yp cos DCV LO 200mA mA Fusedon 500Vpk Rear Panel Fused DCI ACI Measurement Small Current Sense Input Q4W VO Pbk 200Vpk 200mARMS 1000VDC 750VAC DCI ACI ACV Measurement Sense Input Q4W VO HE 200Vpk 200mARMS 1000VDC 750VAC ACV LO 200mA mA Fused on 500Vpk Rear Panel Fused DCI ACI Measurement Large Current Sense Input Q4W VO HE 9 200Vpk 200mARMS 1000VDC 750VAC L 200mA 10A mA Fused on 500Vpk RMS Rear Panel DCI ACI Fused Note in order to protect the multimeter please execute DC AC current measurement following the requirements below 1 Do not connect the 10 A and LO Sense 200 mA input terminals into the current measuring circuit at the same time User s Guide for DM3068 1 15 RIGOL Chapter 1 Quick Start 2 Select a proper current input terminal according to the estimated current magnitude before connecting the multimeter to AC power supply if you want to use current measurement 3 Only use 10 A and LO terminals for measurements when the AC DC RMS value of the current under measurement goes within 200 mA and 10 A Resistance Measurement 2 wire 200mA SOMA Fusedon 500Vpk Rear Panel Sense 2WR Fused Capacitance Measurement Sense Input Q4W VO KLL 200V p S RMS 1000v0C Capacita
104. ress Apply to enable the current network parameters 5 To Restore Factory Defaults Press Default to restore the network parameters to defaults in which the DHCP and AutolP are ON and the ManuallP is disabled User s Guide for DM3068 2 73 RIGOL Chapter 2 Front Panel Operations To Set the GPI B Address Each device connected to the GPIB IEEE 488 2 interface must have a unique address Before using this interface use GPIB cable to connect the multimeter with the PC GPIB Use the direction keys to set the GPIB address to any integer within 0 and 30 The default is 7 This setting is stored in nonvolatile memory 2 74 User s Guide for DM3068 Chapter 2 Front Panel Operations RIGOL To Set the RS232 Before any related operations use RS232 cable to connect the multimeter to a PC or data terminal equipment DTE Then set the interface parameters such as baud rate parity and handshake to match the mutlimeter with the PC or data terminal equipment in order to control the multimeter The measured result can be transferred into serial receiving device PC via this interface RS232 Table 2 7 RS232 Pin definition Pin Abbreviation
105. rminals 1 Main input HI and LO terminals HI and LO terminals are used for Voltage Resistance Capacitance Continuity Frequency and Diodes measurements and should be used under the following two conditions 1 HI LO protection limit at most 1000 VDC or 750 VAC this is also the maximum measurable voltage The limit can be expressed as 1000 Vpk 2 LO ground protection limit at most 500 Vpk relative is allowed to float at LO terminal with safety Since the HI terminal holds a maximum protection of 1000 Vpk relative to the ground the sum of the float and measured voltages cannot exceed 1000 Vpk Sampling HI Sense and LO Sense 200 mA terminals HI Sense and LO Sense 200 mA terminals are used for 4 Wire Resistance measurement and should be used under the following two conditions 1 HI Sense LO Sense 200 mA protection limit 200 Vpk 2 LO Sense 200 mA LO protection limits 0 5 Vpk The current input fuse on the rear panel provides the current passing through LO Sense 200 mA up to 500 mA protection Current input 10 A and Sense 200 mA terminals 10 A and LO terminals are used for current measurements of 2 A and 10 A The maximum current which goes through the 10 A terminal is limited to 10 A by the internal fuse LO Sense 200 mA and LO terminals are used for current measurements ranging from 200 uA to 200 mA The maximum current which go through the LO Sense 200 mA terminal is limited to 500 mA by the intern
106. s to the main interface and the searched instruments are shown under the RIGOL Online Resource directory as shown in the figure below LAN USB TMC IVI Config Verify All B RIGOL Online Resource z DM3088 IVI Class DriverControl i Other Online Resource IDN Rigol Te 5 Communication Test Right click the source name DM3068 ASRL1 I NSTR and then choose SCPI Panel Control to open the remote command control panel from which you can send commands and read data as shown in the figure below I DE3068 ASRL1 INSTR 3 3 2010 13 17 39 839 Je Sen Commana eem Send tend to ASRLI INSTR User s Guide for DM3068 Chapter 4 Troubleshooting RIGOL Chapter 4 Troubleshooting The commonly encountered failures and their solutions are listed below When you encounter those problems please solve them following the corresponding steps If the problem remains still please contact RIGOL and provide your device information CVT C gt Info 1 The screen is still dark no display after power on Check whether the power cord is well connected Check whether the power switch on the rear panel is switched on Check whether the fuse is burned out If the fuse needs to be changed please use the specified fuse Restart the instrument after finishing the above inspections If the problem persists please contact RIGOL 2 The reading does not change when a current signal is input 1 Check wheth
107. setting information Cea RIGOL Web Enable OM3068 M Welcome Page Help About All pages of This Instrument Network instrument introduction Status M3068 Digital Mufmeter is a 6 1 2 dig dual cisplay multimeter designed for high p Network precision multtunction automation measurements mathematical operations and Settings flexible user sensor Configurations e amp The instrument hat plenty of interfaces which include RS 232 USB LAN GPIB The concise and user Mendy layout of the front panel ba as a keyboard and back lighted functional buttons embedded wen operating instructons makes the instrument more flexible and capable us Hep Network Introduction c DHCP The DHCP Dynamic Host Configuration Protocof provides a framework for passing configuration information to hosts on a TCPAP network f OHCP is ON Ihe values for the IP Ad re 5 Subnet Mask and Default Gateway have been assigned automatically from the DHCP server Automatic IP Automatic IP determines the values for tne IP Address Subnet Mask and Default Gateway IP Address An address used to identify node on an IP network Each node on the IP network must be assigned a unique IP address which is made up of the network ID plus a unique host ID This address is typically represented with the decimal value of each octet separated by period for exarnpie 192 168 1 3 L oe ac E 5 Press Security to enter the interface as shown
108. specifications Internal temperature changes due to self heating may cause additional error on lower ac voltage ranges The additional error will be less than 0 0296 of reading and will generally dissipate within a few minutes 6 10 User s Guide for DM3068 Frequency and Period Characteristics RIGOL Accuracy Specifications of reading Function Range Frequency Range 24 Hour 90 Day 1 Year Temperature Tca C 1 C Tca C BC Tca C BC Coefficient OC to Tcu C 5 C TcA C 5 C to 50 C Frequency Period 200 mV to 3 Hz 5 Hz 0 07 0 07 0 07 0 005 750 V 5 Hz 10 Hz 0 04 0 04 0 04 0 005 10 Hz 40 Hz 0 02 0 02 0 02 0 001 40 Hz 300 kHz 0 005 0 006 0 007 0 001 300 kHz 1 MHz 0 005 0 006 0 007 0 001 Additional Low Frequency Errors of reading Frequency Gate Time Resolution 1s 0 1 ppm 0 1 s 1 ppm 0 01 s 10 ppm 0 001 s 100 ppm 3 Hz 5 Hz 0 0 12 0 12 0 12 5 Hz 10 Hz 0 0 17 0 17 0 17 10 Hz 40 Hz 0 0 20 0 20 0 20 40 Hz 100 Hz 0 0 06 0 21 0 21 100 Hz 300 Hz 0 0 03 0 21 0 21 300 Hz 1 kHz 0 0 01 0 07 0 07 gt 1 kHz 0 0 0 02 0 02 1 Specifications are for 90 minutes warm up and 1 s gate time 2 For frequency lt 300 kHz the specification is for AC input voltage of 10 to 110 of range For frequency gt 300 kHz the specification is for AC input voltage of 20 to 11096 of range The maximum input is limited to 750 V rms or 8 x 10 Volts Hz whichever
109. surement allows users to configure the filter For details please refer to Measurement Configuration User s Guide for DM3068 2 11 RIGOL Chapter 2 Front Panel Operations 5 Read the measurement value The multimeter measures the input signal according to the current measurement settings and displays the value on the screen For AC signal users can also measure the frequency period of the signal During the ACI measurement press and then press and the measurement result is as shown in the figure on the next page ACI i Auto 20Hz LXI 6 Make math operation advanced Users can perform math operation STA P F and REL on each ACI measurement reading For REL operation the multimeter subtracts the pre specified value of REL from the actual measurement result and displays the result For details please refer to Math Operations 7 View history data Up to 5000 latest measured data can be viewed Press History to enter the following interface Measurement AC Range 20mA Records 107 HistoG Update Save t Press Info and use the up and down direction keys to view the measurement item measurement range number of values maximum minimum average and standard deviation Press List and use the up and down direction keys or the menu softkeys to view all the measurement results before the last update in table form Press HistoG to view the histogram of the average AVG and standard deviation SDEV
110. t 3 Select a proper voltage scale 4 Replace a specified fuse 5 Reinstall the fuse seat into the slot Figure 1 8 Replace the Power Fuse User s Guide for DM3068 1 11 RIGOL Chapter 1 Quick Start WARNI NG In order to avoid electric shock or fire please just use the specified fuse and make sure the fuse holder is not short circuited 10 Voltage Selector Select a proper voltage scale 115 V or 230 V according to the AC supply used 11 Power Switch Connect or disconnect the AC supply If the power button at the front panel is disabled t gt System gt Cfg gt Switch gt OFF turning on this switch will directly start up the multimeter 1 12 User s Guide for DM3068 Chapter 1 Quick Start RIGOL User Interface DCV 2000001V Math Measurement parameter LXI connection REL Mode succeeds Range Rmt Remote Control Main Display Local Local Control Function ACV i 20v i200Hz REL iX _ S USB Storage Run DR 1 000000kHz Vice Display Reading Indication 1 9 99999V pe al FREQ Vice Display Function Main Display Operation Menus Reading Figure 1 10 User Interface Dual Display User s Guide for DM3068 1 13 RIGOL Chapter 1 Quick Start To Use the Multimeter for the First Time Start your multimeter according to the following steps when using it for the first time 1 Connect the AC Power Supply 1 Select an appropriate voltage scale according to the present AC power us
111. tance 5 kQ 40 C to 150 C 0 08 C 0 002 C 10 kQ 40 C to 150 C 0 08 C 0 002 C 30 KQ 40 C to 150 C 0 08 C 0 002 C B 0 C to 1820 C 0 76 C 0 14 C E 270 C to 1000 C 0 5 C 0 02 C J 210 C to 1200 C 0 5 C 0 02 C Thermocouple K 270 C to 1372 C 0 5 C 0 03 C N 270 C to 1300 C 0 5 C 0 04 C R 270 C to 1768 1 C 0 5 C 0 09 C S 270 C to 1768 1 C 0 6 C 0 11 C T 270 C to 400 C 0 5 C 0 03 C 1 Specifications are for 90 minutes warm up Probe error excluded 2 Specification is for 4WR resistance measurement or 2WR resistance measurement using REL operation for sensor 3 Relative to cold junction temperature accuracy is based on ITS 90 Built in cold junction temperature refers to the temperature inside the banana jack and its accuracy is 2 5 C 6 14 User s Guide for DM3068 Chapter 6 Specifications RIGOL Measuring Characteristics Measurement Considerations The built in cold junction temperature tracks the temperature inside the banana jack The change of temperature in banana jack might cause additional error When using the built in cold junction compensation connect the sensor terminal of the thermocouple to the banana jack and warm it up for more than 3 minutes to minimize the error User s Guide for DM3068 6 15 RIGOL Measurement Rate Chapter 6 Specifications Measurement Rate U Function Setting Int
112. terface and enter a name that is easy to understand for the newly defined sensor The name should be within 9 characters debi Kame Bens 2 E gt Input Area ae EECDEFSHUKLHNOPGRBTUTWXVI Bist A a 1 Del Done f Range Selecting Area Name File Name I nput Method Press the up or down direction key to place the cursor in the File Name Input Area or Character Selecting Area When the File Name Input Area is selected the Character Selecting Area is hidden automatically and you can select the cursor position to be edited by pressing the right and left direction keys or press and hold the key In Character Selecting Area choose the desired character using the right and left direction keys At this point the character in the File Name Input Area changes accordingly after choosing the desired character select the File Name Input Area and press the right direction key to confirm the character selected and move the cursor to the next position Uppercase letter lowercase letter and number can be use for defining the name A input uppercase letters A Z a input lowercase letters a z 1 input numbers 0 9 2 28 User s Guide for DM3068 Chapter 2 Front Panel Operations RIGOL Del delete the character where the cursor locates e Done finish the name input f return to the upper level menu 2 Specify the Sensor Type Press Prpty gt Type to enter the following interf
113. the effective AC current bandwidth is 100 kHz The multimeter s ACV and ACI functions measure the AC coupled true RMS value namely the RMS value of the AC component the DC component is filtered out of the input signal As shown in table 5 1 since the sine triangle and square 5096 duty cycle waves do not have DC offset their AC true RMS values equal the AC DC true RMS values Table 5 1 True RMS AC Measurements of Sine Triangle and Square waves Waveform Crest Factor C F AC RMS AC DC RMS SSS Se J2 si S pal Nae 5 si fal D n LS CF CF Unsymmetrical waveforms such as pulse sequence contain DC component which will be filtered out during the AC coupled true RMS measurements The AC coupled true RMS measurement is especially useful for measuring small AC signals having DC offset such as the AC ripple from DC power supplies However in some cases you need to measure the AC DC true RMS value First you can User s Guide for DM3068 5 3 RIGOL Chapter 5 Measurement Tutorial measure the DC and AC components of the signal using DCV and ACV measurements and then calculate the AC DC true RMS value according to the formula below In order to obtain the best AC rejection select 6 5 digits when measuring DC voltage RMS acino VAC DC 5 4 User s Guide for DM3068 Chapter 5 Measurement Tutorial RIGOL Crest Factor Errors non sinusoidal inputs A common m
114. the rack with instrument onto a standard 19 inch machine cabinet using four M6 screws and four M6 square nuts respectively 7 Post installation note the rack holds a height of 3U Holes pointed out by the arrows are the installation holes and should be aligned with when installing LI DU o E DU U UC oOpooooonG OO 1 24 User s Guide for DM3068 Chapter 2 Front Panel Operations RIGOL Chapter 2 Front Panel Operations This chapter introduces how to use the functions of the multimeter from the front panel The chapter contains the following topics To Set the Range To Set the Resolution Basic Measurement Functions Any Sensor Measurement Preset Mode Secondary Function Key Measurement Configuration Math Operations Trigger Save and Recall Utility User s Guide for DM3068 2 1 RIGOL Chapter 2 Front Panel Operations To Set the Range DM3068 provides auto and manual range selecting modes In auto mode the multimeter selects a proper range automatically according to the input signal in manual mode you can use the front panel key or menu key to set the range The auto mode can bring a lot of convenience for users while the manual mode provides higher reading precision Method 1 use the front panel key to set the range Range gt Range Auto mode Press SO ig enable Eu auto range e Manual mode Press or to increase or reduce the range Method 2 use the menu key to select the
115. uide for DM3068 XV Chapter 1 Quick Start RIGOL Chapter 1 Quick Start This chapter guides users to quicky get familar with the front and rear panles user interface and measurement connections of the multimeter This chapter contains the following topics General Inspection Handle Adjustment Appearance and Dimensions Front Panel Rear Panel User Interface First use of the Multimeter Measurement Connections To Use the Built in Help System To Use the Rack Mount Kit User s Guide for DM3068 1 1 RIGOL Chapter 1 Quick Start General I nspection 1 1 2 Inspect the shipping container for damage Keep the damaged shipping container or cushioning material until the contents of the shipment have been checked for completeness and the instrument has passed both electrical and mechanical tests The consigner or carrier shall be liable for the damage to the instrument resulting from shipment RIGOL would not be responsible for free maintenance rework or replacement of the unit Inspect the instrument In case of any damage or defect or failure notify your RIGOL sales representative Check the accessories Please check the accessories according to the packing lists If the accessories are incomplete or damaged please contact your RIGOL sales representative User s Guide for DM3068 Chapter 1 Quick Start RIGOL Handle Adjustment To adjust the handle position of the multimeter grip the handle by both sides and pull
116. ult Press any softkey again to display the operation menus 2 10 User s Guide for DM3068 Chapter 2 Front Panel Operations RIGOL To Measure AC Current Range 200 uA 2 mA 20 mA 200 mA 2 A 10 A Max Resolution 0 1 nA in 200 uA range I nput Protection the multimeter uses two kinds of fuses for input protection the small current input fuse 500 mA high speed fuse at the rear panel and the built in large current input fuse 10 A 1096 overrange is available on all ranges except 10 A f the reading exceeds 10 5 A in 10 A range OVER LOAD will be displayed In order to obtain more accurate measurement results DM3068 deals with small and large input currents separately The multimeter will use small current measurement mode for current within 200 mA and use large current measurement mode for current that is equal to or higher than 2 A Operating Steps 1 Enable the ACI measurement Press at the front panel to enter the following interface Auto 20Hz li 200 000 0 A 2 Make connection Connect the test lead with the measured signal by referring to Measurement Connections 3 Set the range Specify an appropriate range the resolution is fixed at 6 digits according to the measured signal and measurement requirements A high voltage icon gs will be displayed at the upper left corner of the screen when the 10 A range is selected 4 Set the measurement parameters Optional The DCI mea
117. ure sensor User s Guide for DM3068 2 33 RIGOL Chapter 2 Front Panel Operations TC The TC thermocouple is one of the most commonly used industrial temperature detection device It converts the temperature value into voltage reading and has a very large temperature measurement range The common thermocouples are B Pt Rh 30 Pt Rh6 E NI CR WRCK J Fe WRCK K NI CR NiSi N NiCrNi NiSi R Pt Rh13 Pt S Pt Rh10 Pt and T Cu WRCK Among them B R and S are precious metal thermocouple while E J K N and T are cheap metal thermocouples For the reference table about each thermocouple please see the ITS 90 standards The DM3068 provides two cold junction compensation modes internal cold junction temperature amp user defined cold junction temperature I nternal cold junction temperature refers to the internal temperature of the banana jack detected by the multimeter Connect the thermocouple wire to the inside of the banana jack and prevent air flow from interfering the temperature around the banana jack The radiating structure on the banana jack connected with the thermocouple wire would cause additional cold junction temperature error About 3 minute warm up is needed to build up the thermal balance after the cold junction is connected User defined cold junction temperature refers to the temperature at the cold junction compensation point of the thermocouple The internal temperature of the banana jack might be dif
118. ver the multimeter automatically takes a zero reading once the function range or integration time is changed The multimeter will subtract this zero reading from the following measurement value User s Guide for DM3068 2 43 RIGOL Chapter 2 Front Panel Operations Offset Compensation OC Offset Comp applies to resistance measurements in the range of 200 Q 2 KQ and 20 kQ It eliminates the impact of small dc offset from test lead on measurement result In 2WR or 4WR measurement when the range is set to 200 Q 2 kQ or 20 kQ press gt OC to enter the following interface ON the multimeter adds two different currents onto the measured resistance and measures the variation of the voltage between both ends of the resistance under the two different currents and then divides the voltage variation by the current variation to obtain the value of the measured resistance OFF the multimeter does not execute offset compensation The offset compensation and auto zero are mutually exclusive The used auto zero function will be disabled automatically once you turn on the offset compensation and vice versa 2 44 User s Guide for DM3068 Chapter 2 Front Panel Operations RIGOL AC Filter AC filter applies to ACV ACI and FREQ PERI OD measurements It can optimize the low frequency accuracy and minimize the AC settling time DM3068 provides three types of AC filters slow medium and fast The AC filter to be used is d
119. y get familiar with the front and rear panels user interface and measurement connections of the multimeter Chapter 2 Front panel Operations This chapter introduces how to use the functions of the multimeter from the front panel Chapter 3 Remote Control This chapter introduces how to control the multimeter remotely Chapter 4 Troubleshooting This chapter lists the failures that might occur when using the multimeter as well as their solutions Chapter 5 Measurement Tutorial This chapter introduces how to eliminate the possible errors during the measurement and obtain accurate measurement result Chapter 6 Specifications This chapter lists the specifications and characteristics of the multimeter Chapter 7 Appendix This chapter provides the accessories information as well as the service information of the multimeter Format Conventions in this Manual e Button The function keys at the front panel of the multimeter are expressed by the key icons For example denotes the DC voltage measurement function key e Menu The operation menu at the bottom of the screen is expressed by Menu Word Character Shading For example the menu REL is expressed as REL User s Guide for DM3068 XI RIGOL Operation step gt is used to indicate operation steps For example Ly gt REL means pressing and then pressing REL XII User s Guide for DM3068 RIGOL Contents Guaranty and Declaration

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