RIGOL Service Guide DM3068 Digital Multimeter Dec. 2010 RIGOL Technologies, Inc.
RIGOL Guaranty and Declaration Copyright © 2010 RIGOL Technologies, Inc. All Rights Reserved. Trademark Information RIGOL is a registered trademark of RIGOL Technologies, Inc. Publication Number SGC06100-1110 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 Safety Requirement General Safety Summary Please review the following 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 Instrument.
RIGOL 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.
RIGOL 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. 3． 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 going 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 A to 200 mA.
RIGOL 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.
RIGOL Safety Terms and Symbols Terms in this Manual. These terms may appear in this manual: WARNING Warning statements indicate the conditions or practices that could result in injury or loss of life. CAUTION Caution statements indicate the conditions or practices that could result in damage to this product or other property. CAT I（1000V） IEC Measurement Category I. The maximum voltage can be measured by HI-LO terminal is 1000Vpk. CAT II（300V） IEC Measurement Category II.
RIGOL General Care and Cleaning General Care: Do not store or leave the instrument at a place 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: 1. Disconnect the instrument from all power sources. 2. Moisten a cloth slightly (using a mild detergent or water) and clean the loose dust on the outside of the instrument.
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 (WEEE) and batteries. Product End-of-Life Handling The equipment may contain substances that could be harmful to the environment or human health.
RIGOL Document Overview Chapter 1 Specifications This chapter lists specifications and characteristics. Chapter 2 Performance Test This chapter introduces how to test the performance of DM3068 so as to know its state well. Chapter 3 Calibration This chapter provides information about the calibration of DM3068. Chapter 4 Disassembly & Assembly This chapter guides you to disassemble and assemble DM3068 to reach a clearer understanding of its structure.
RIGOL Table of Contents Guaranty and Declaration ........................................................................ I Safety Requirement ................................................................................. II General Safety Summary .......................................................................... II Safety Terms and Symbols ........................................................................VI General Care and Cleaning.........................................................
RIGOL 4. 4. 4. 4. 4. 8 To Disassemble and Assemble Filter Board & Transformer ................ 4-8 9 To Disassemble and Assemble Front Panel & LCD ........................... 4-9 10 To Disassemble and Assemble the Fan ....................................... 4-10 11 To Disassemble and Assemble Mainboard .................................. 4-11 12 To Disassemble and Assemble Keypad PCB ................................ 4-12 Chapter 5 Troubleshooting & Maintenance.........................................
Chapter 1 Specifications Chapter 1 RIGOL Specifications 1. 1 DC Characteristics Function DC Voltage DC Current Resistance[6] Diode Test Range[2] 200.0000mV 2.000000V 20.00000V 200.0000V 1000.000V[4] 200.0000uA 2.000000mA 20.00000mA 200.0000mA 2.000000A 10.00000A[5] 200.0000Ω 2.000000kΩ 20.00000kΩ 200.0000kΩ 1.000000MΩ 10.00000MΩ 100.0000MΩ 2.0000V[7] Service Guide for DM3068 Test Current or Burden Voltage 24 Hour[3] TCAL℃± 1℃ <0.03V <0.25V <0.07V <0.7V <0.12V <0.
RIGOL Chapter 1 Specifications Continuity Test 2000.0Ω 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 100NPLC integration time. For integration time <100NPLC, add the appropriate “RMS Noise Adder” listed in the following table. [2] 10% overrange on all ranges except DCV 1000V and DCI 10A range. [3] Relative to calibration standards. [4] For each additional volt over ± 500 V, add 0.03mV error.
Chapter 1 Specifications [4] RIGOL The basic DC accuracy specifications include RMS noise at 100 NPLC. For <100 NPLC, add “RMS Noise Adder” to the basic DC accuracy specifications. SFDR & SINAD[1] Function Range Spurious-Free Dynamic Range (SFDR) Signal-to-Noise-and-Distortion (SINAD) DCV 200mV 81 76 2V 79 78 20V 79 75 200V 83 80 1000V 86 82 DCI 200uA 89 69 2mA 86 81 20mA 88 69 200mA 81 79 2A 69 64 [1] Typical value. -1dBFS, 1kHz single tone.
Chapter 1 Specifications RIGOL Input Protection Offset Compensation DC Current Shunt Resistor Input Protection 1000V on all ranges Available on 200Ω, 2kΩ and 20 kΩ ranges. 100Ω for 200uA, 2mA 1Ω for 20mA , 200mA 0.01Ω for 2A, 10A Externally accessible 500mA, 250V fast blow fuse at the rear panel for 200uA, 2mA, 20mA and 200mA ranges. Internal 10A, 250 V slow blow fuse for 2A and 10A ranges.
Chapter 1 Specifications RIGOL 1. 2 AC Characteristics [2] Function Range True RMS AC Voltage [4] 200.0000mV 2.000000V 20.00000V 200.
Chapter 1 Specifications RIGOL 750.000V[5] True RMS AC Current [8] 200.0000uA 2.000000mA 20.00000mA 200.0000mA 2.000000A 10.00000A[6] 1-6 50kHz-100kHz 100kHz-300kHz 3Hz-5Hz 5Hz-10Hz 10Hz-20kHz 20kHz-50kHz 50kHz-100kHz 100kHz-300kHz 3Hz-5Hz 5Hz-10Hz 10Hz-5kHz 5kHz-10kHz 3Hz-5Hz 5Hz-10Hz 10Hz-5kHz 5kHz-10kHz 3Hz-5Hz 5Hz-10Hz 10Hz-5kHz 5kHz-10kHz 3Hz-5Hz 5Hz-10Hz 10Hz-5kHz 5kHz-10kHz 3Hz-5Hz 5Hz-10Hz 10Hz-5kHz 5kHz-10kHz 3Hz-5Hz 0.55 + 0.08 4.0 + 0.50 1.00 + 0.02 0.35 + 0.02 0.04 + 0.02 0.10 + 0.
Chapter 1 Specifications RIGOL 5Hz-10Hz 10Hz-5kHz 0.35 + 0.08 0.15 + 0.08 0.35 + 0.10 0.15 + 0.10 0.35 + 0.10 0.15 + 0.10 0.035 + 0.008 0.015 + 0.008 Additional Low Frequency Errors (% of reading) Additional Crest Factor Errors (non-sinewave) [7] Frequency AC Filter Crest Factor Error (% of reading) Slow Medium Fast 10Hz-20Hz 0 0.74 -1-2 0.05 20Hz-40Hz 0 0.22 -2-3 0.2 40Hz-100Hz 0 0.06 0.73 3-4 0.4 100Hz- 200Hz 0 0.01 0.22 4-5 0.5 200Hz-1kHz 0 0 0.
Chapter 1 Specifications RIGOL CMRR (common mode rejection ratio) True RMS AC Current Measurement Method Crest Factor Max. Input Shunt Resistor Input Protection 70 dB, for the 1 kΩ unbalance in LO lead, <60Hz,± 500VDC peak maximum. Direct coupled to the fuse and shunt; AC-coupled True RMS measurement (measure the AC component only). ≤ 3 at full range DC + AC current peak value <300% of range. The RMS current <10A rms including the DC component. 100Ω for 200uA, 2mA 1Ω for 20mA , 200mA 0.
Chapter 1 Specifications RIGOL 1. 3 Frequency and Period Characteristics [3] Function Range Frequency Range 24 Hour TCAL℃± 1℃ Frequency, Period 200mV to 750V 3 Hz-5 Hz 5 Hz-10 Hz 10 Hz-40 Hz 40 Hz-300 kHz 300 kHz-1 MHz 0.07 0.04 0.02 0.005 0.005 Accuracy Specifications: ± (% of reading)[1][2] 90 Day 1 Year Temperature TCAL℃± 5℃ TCAL℃± 5℃ Coefficient 0℃ to (TCAL℃-5℃) (TCAL℃+5℃)to 50℃ 0.07 0.07 0.005 0.04 0.04 0.005 0.02 0.02 0.001 0.006 0.007 0.001 0.006 0.007 0.
RIGOL Chapter 1 Specifications Measuring Characteristics Frequency and Period Measurement Method Reciprocal-counting technique, AC-coupled input using the AC voltage function. Input Impedance 1MΩ ± 2% in parallel with <150pF capacitance on any range Input Protection 750V rms on all ranges Measurement Considerations 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.
Chapter 1 Specifications RIGOL 1. 4 Capacitance Characteristics Accuracy Specifications: ± (% of reading + % of range)[1][2] Function Range Test Current 1Year Temperature Coefficient TCAL℃± 5℃ 0℃ to (TCAL℃-5℃) (TCAL℃+5℃) to 50℃ Capacitance 2.000nF 200nA 2 + 2.5 0.05+0.05 20.00nF 2uA 1 + 0.3 0.05+0.01 200.0nF 10uA 1 + 0.3 0.01+0.01 2.000uF 100uA 1 + 0.3 0.01+0.01 20.00uF 1mA 1 + 0.3 0.01+0.01 200.0uF 1mA 1 + 0.3 0.01+0.01 2.000mF 1mA 1 + 0.3 0.01+0.01 20.00mF 1mA 1 + 0.3 0.01+0.01 100.0mF 1mA 3 + 0.2 0.
Chapter 1 Specifications RIGOL 1. 5 Temperature Characteristics Function Temperature [1] [2] [3] 1-12 Probe Type Type Optimum Range 1 Year TCAL℃± 5℃ Accuracy Specifications [1] Temperature Coefficient 0℃ to (TCAL℃-5℃) (TCAL℃+5℃) to 50℃ 0.01℃ 0.01℃ 0.01℃ 0.01℃ 0.002℃ 0.002℃ 0.002℃ 0.002℃ 0.002℃ 0.14℃ 0.02℃ 0.02℃ 0.03℃ 0.04℃ 0.09℃ 0.11℃ 0.03℃ α=0.00385 -200℃ to 660℃ 0.16℃ α=0.00389 -200℃ to 660℃ 0.17℃ α=0.00391 -200℃ to 660℃ 0.14℃ α=0.00392 -200℃ to 660℃ 0.15℃ 2.2kΩ -40℃ to 150℃ 0.
Chapter 1 Specifications RIGOL Measuring Characteristics Measurement Considerations The built-in cold junction temperature tracks the temperature inside the banana jack. The change of the 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.
Chapter 1 Specifications RIGOL 1. 6 Measurement Rate Measurement Rate [1] Readings/s 50Hz（60Hz） 10000(10000) 2500(3000) 833(1000) 250(300) 50(60) 25(30) 5(6) 0.5(0.6) AC Voltage 0.2 AC Current 1.5 [2] 10 50[3] Frequency and 1 Period 10 [4] 80 500 Capacitance[5] 25 [1] Auto trigger, zero trigger delay, auto zero off, auto range off, math function off and external interface off. [2] Use the default trigger delay setting. [3] The maximum rate available when trigger delay is set to 0.
Chapter 1 Specifications RIGOL 1. 7 Other Measurement Characteristics Triggering and Storage Trigger Time Base Resolution Trigger Delay Sample Timer Internal Trigger Level Accuracy Reading Hold Sensitivity Single Trigger Samples External Trigger Input VMC Output History Record and Storage Volatile Memory Non-volatile Memory Service Guide for DM3068 Pre-trigger or Pos-trigger, Internal Trigger or External Trigger, Rising Edge Trigger or Falling Edge Trigger 33.333us, 0.
Chapter 1 Specifications RIGOL 1. 8 General Specifications Display Power Supply Power Consumption Working Environment Storage Temperature Operation Altitude Safety EMC Weight Dimension Remote Interface Programming Language LXI Compatibility Warm-up Time 1-16 256× 64 LCD, dual display, graphical menu, selectable Chinese or English, online help.
Chapter 2 Performance Test Chapter 2 RIGOL Performance Test 2. 1 Test Type The performance test is used to check the measurement performance of the multimeter based on the specifications listed in User’s Guide for DM3068 or “Specifications” in this book. The DM3068 supports Self-test, Fast test and Routine Test. Below is the detailed information. 2.1.1 Self-Test Self-Test is a series of internal calibration tests which can be used reliably to determine the usability of the instrument.
Chapter 2 Performance Test RIGOL 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 Input Leakage Test Ohms 0.2uA and DC x1 Test DCV Autozero Test DCI Autozero Test Precharge Offset Test.
Chapter 2 Performance Test RIGOL 2.1.2 Fast Test Fast test is an easy way to inspect the functions and specifications of the meter with higher confidence level. It contains only a few test points, and can evaluate the accuracy of the meter in normal use rather than to detect an element failure. Fast Test Directions: Step1: Step2: Run the test. Execute the test items marked with “Q” (indicates the optional quick test item) in “Routine Test”.
RIGOL Chapter 2 Performance Test 2.1.3 Routine Test A routine test is recommended when you first obtain the meter. Please compare the routine test results with the specifications given in the 1 year column of Allowable Error Range from tables (Table 2-3 to Table 2-7) in “Routine Test”. Note the meter should be recalibrated once the calibration interval time is up. NOTE The meter passed the routine test must be tested again when the test time interval is exceeded.
Chapter 2 Performance Test RIGOL 2. 2 Testing Equipments The following table lists the equipments recommended for the test. If you do not have such equipments, use others that have the same Precisions instead.
RIGOL Chapter 2 Performance Test 2. 3 Test Conditions For best performance, we advise following items throughout all testing processes: 1. 2. 3. 4. 5. 6. 7. Always operate the instrument under a proper voltage. Make sure the ambient temperature during the test is stable and within 18 °C and 28 °C. The relative humidity should be less than 80%. Warm up the instrument for at least 90 minutes before testing. Use a copper connector to reduce its thermoelectric potential effect.
Chapter 2 Performance Test RIGOL 2. 4 Input Connections To perform a zero-offset test, you must use a 4-teriinal short-circuiter which is made of copper or copper alloy with low thermoemf. A coaxial cable whose shielding layer is connected to the LO terminal should be used for the capacitance test, while a Teflon Shielded Twisted Pair with isolation and as short as possible is available for other kinds of tests.
Chapter 2 Performance Test RIGOL 2. 5 Routine Test 2.5.1 Zero-offset Test The zero-offset test inspects the meter’s offset performance at the point of zero. It is necessary only when a regular offset is occurred to a function or range. To perform a zero-offset test: 1. 2. 3. 4. Make sure you have carefully read the “Test Conditions”.
Chapter 2 Performance Test Resistance[2] 200.000Ω 2.00000kΩ 20.0000kΩ 200.000kΩ 1.00000MΩ 10.0000MΩ 100.000MΩ RIGOL short short short short short short short Q Q ±6mΩ ±10mΩ ±100mΩ ±1Ω ±10Ω ±100Ω ±10kΩ ±8mΩ ±20mΩ ±200mΩ ±2Ω ±10Ω ±100Ω ±10kΩ ±8mΩ ±20mΩ ±200mΩ ±2Ω ±10Ω ±100Ω ±10kΩ Remarks: [1] The integration time is set to 100PLC. [2] Specifications are for 4-wire or 2-wire resistance measurement using “REL” operation. If 2-wire resistance measurement is used without REL operation, add 0.
Chapter 2 Performance Test RIGOL 2.5.2 Gain Test The gain test inspects the accuracy of the meter under a full range. It is necessary only when a regular gain offset is occurred to a function or range. 1. To test the DC gain: (1) Make sure you have carefully read the “Test Conditions”. (2) Connect your meter with the calibrator. (3) Perform a step-by-step test for the functions under different ranges specified in the following table and set the integration time to 100PLC.
Chapter 2 Performance Test RIGOL 100.0000MΩ 100MΩ ±310kΩ ±810kΩ ±810kΩ Remarks: [1] The integration time is set to 100PLC. [2] For Continuous current greater than DC 7 A or AC RMS 7 A, 30s on and 30s off. [3] Specifications are for 4-wire or 2-wire resistance measurement using “REL” operation. If 2-wire resistance measurement is used without REL operation, add 0.2 Ω additional errors. [4] Q denotes the optional quick test point. 2.
Chapter 2 Performance Test RIGOL [1] [2] The AC filter is set to Slow. Q denotes the optional quick test point. 3. To test the AC current gain: (1) Make sure you have carefully read the “Test Conditions”. (2) Connect your meter with the calibrator. (3) Perform a step-by-step test under the ranges specified in the following table, set the filter to Slow and disable the math function.
Chapter 2 Performance Test RIGOL can adequately output). Table 2-7 Frequency gain test items Signal Signal Quick Virtual Range Frequency Test[1] Value 20mV 98Hz 200 mV 200mV 500kHz Q 2V Remark: [1] Q denotes the optional quick test point. 5. Allowable Error Range 24 hours ± 4.9mHz ± 25Hz 90 days 1 year ± 5.88mHz ± 30Hz ± 6.86mHz ± 35Hz To test the capacitance gain: (1) Make sure you have carefully read the “Test Conditions”.
Chapter 3 Calibration Chapter 3 RIGOL Calibration 3. 1 Calibration Interval The DM3068 must be periodically calibrated; the calibration interval depends upon the requirements of the measurement accuracy. For the measurement needs higher accuracy, a 90-day interval is recommended and less than 1 year interval is possible in most situation. The accuracy will not be guaranteed until you perform a periodical calibration. An interval higher than 1 year is not recommended under all circumstances. 3.
Chapter 4 Disassembly & Assembly Chapter 4 RIGOL Disassembly & Assembly 4.
Chapter 4 Disassembly & Assembly RIGOL 4. 2 The 3D View of DM3068 Below is the 3D view of the DM3068 which will help you get a primary understanding of the main parts of the instrument before disassembling or assembling. You need to be gentle, follow the steps and be careful not to scratch the surface of the instrument and the PCB when disassembling or assembling the instrument (for details, refer to Disassembly and Assembly Notices).
Chapter 4 Disassembly & Assembly RIGOL 4. 3 To Disassemble and Assemble Handle To remove the handle, grasp it by the sides and pull outward, then rotate the handle until it is out of the meter body (see figure below).
RIGOL Chapter 4 Disassembly & Assembly 4.
Chapter 4 Disassembly & Assembly RIGOL 4.
RIGOL Chapter 4 Disassembly & Assembly 4.
Chapter 4 Disassembly & Assembly RIGOL 4.
RIGOL Chapter 4 Disassembly & Assembly 4.
Chapter 4 Disassembly & Assembly 4.
RIGOL Chapter 4 Disassembly & Assembly 4.
Chapter 4 Disassembly & Assembly RIGOL 4.
RIGOL Chapter 4 Disassembly & Assembly 4. 12 To Disassemble and Assemble Keypad PCB Figure 4-11 To disassemble and assemble keypad PCB Please try to assemble and disassemble your instrument as above orders or directions to avoid damages to the meter and save time.
Chapter 5 Troubleshooting & Maintenance Chapter 5 RIGOL Troubleshooting & Maintenance 5.1 Troubleshooting 1. The multimeter does not start and has no display after power-on: (1) Check if the power is correctly connected. (2) Check if the power switch on the rear panel has been turned on. (3) Check if the power indicator on the front panel is always on. (4) Check the power fuse on the back and replace a new one if the fuse is blown out. (5) Check if the voltage selector is switched to a right level.
RIGOL ! Chapter 5 Troubleshooting & Maintenance CAUTION Cut off power connection before replacing the fuse. The new fuse should meet the specification requirements in this guide. 2. Self-test failed: (1) Check the voltage selector if proper scale is selected. (2) Disconnect all inputs and restart the self-test.
Chapter 5 Troubleshooting & Maintenance RIGOL (2) Check the connection of the GPIB cable. (3) Check if the software edition matches to the used firmware-version. 9. Cannot connect to the meter through LAN interface: (1) Make sure you are using the correct network cable and the cable is in good connection. (2) Check the network connection indicator, if the indicator is dark, the LAN may have problems. (3) Check if the settings of DHCP, IP address and DNS match to the LAN settings.
RIGOL Chapter 5 Troubleshooting & Maintenance 5.2 Maintenance and Cleaning 5.2.1 System Maintenance In order to ensure the running performance of instrument and extend its service time, you must: 1． Become fully knowledgeable about the meter performance before using it. 2． Do always use and store the meter against dust, shock, humid, magnet and static as well as do not expose it in the sun for a long time as such situation will detract from measurement precision and service life.
Chapter 5 Troubleshooting & Maintenance Power Input Socket RIGOL Grounding Circuit LAN/GPIB LCD Keypad USB Host Board Trig/VMC Fan Transformer (CPU) DM3068 Mainboard Main Voltage Regulator Circuit Power Input (Front End Circuit) Current Input Fuse Banana Socket Floating Circuit Figure 5-2 DM3068 circuit principles 2. The grounding circuit contains most circuits such as keypad, LCD, USB Host, LAN/GPIB board, Trig/VMC port, fan and CPU. 3.
Chapter 5 Troubleshooting & Maintenance RIGOL 5.2.3 Components Inspection In this part, you will get more information concerning the fault location for removing advanced malfunction. 1.
Chapter 5 Troubleshooting & Maintenance RIGOL Figure 5-3 Transformer Winding Compare the measured voltages of each winding with the ones in the following table: Table 5-1 Check list of voltage selector winding voltage Windings Original Vice Shielding White-Yellow White-Red Black-Black White-Yellow Yellow-Brown Blue-Blue Yellow-Green Max(Vrms) Min(Vrms) 132 265 10.8 21 21 10.3 --- 90 180 7.3 14 14 6.9 --- Typical （Vrms） 110 220 9 17 17 8.
RIGOL Chapter 5 Troubleshooting & Maintenance meter starts testing the screen and a message “Press ·Help· Key to Switch, Hold ·Help· Key to Exit” is shown on the screen. If you press Help, the screen switches between Full white (all pixels go on) and Full black (all pixels go out). Observe the luminance fluctuation of the LCD and inspect if there is any light spot or dark spot. If you press and hold Help for about 2 seconds, the display returns to normal measurement state.
Chapter 5 Troubleshooting & Maintenance ! RIGOL WARNING If a failure occurs, contact RIGOL and never disassemble the instrument by yourself to avoid accident or losing.
Chapter 5 Troubleshooting & Maintenance RIGOL 5.2.4 Replaceable Part list RIGOL provides some replaceable parts for you to maintain or update the meter, which are: Table 5-2 Replaceable Part List Part No.
Chapter 5 Troubleshooting & Maintenance 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 PCB cable PCB-2BNC PCB-GPIB&LAN M4 sunk screw (fan) Fan M3× 28+8 Brass stud Customized screw (small) Power fuse socket Power fuse DB9 screw BNC nut USB DB9-male LCD screen BNC (plastic) FuseHolder-b02 GPIB-24PIN-female Net interface Voltage selector Electric outlet Transformer USB interface-vertical-long Banana interface Nut for Banana interface Cross recessed small pan head screws G
RIGOL Chapter 5 Troubleshooting & Maintenance 5.2.5 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 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.
