No.1. Digital Multimeter RIGOL TECHNOLOGIES, INC.

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1 No.1 DM368 6½ digits Digital Multimeter Real 6 ½ digits readings resolution Up to 1 K rdgs/s of measurement speed and 512 K rdgs Nonvolatile Memory TrueRMS AC Voltage Current measuring Builtin 1 groups data storage,1 groups setup storage Standard temperature Sensor, builtin Thermcouple compensate in Cold terminal, support three types of temperature sensors: TC, RTD and THERM Clone or backup all the configurations within instrument into otherdm368 via Udisc UltraSensor software: Easy, convenient and flexible to support "Any sensor" measurements Real time Trend and Histogram Display functions Standard interface: USB Device, USB Host, LAN, RS232, GPIB, support Udisc storage and Web remote control (LXIC) Remote control with SCPI commands LCD Support double display, waveform display, Chinese and English menu Pushhelp makes information acquire more easier File management (support for Udisc and local storage) DM368 is a digital multimeter designed with 6 ½ digits readings resolution especially fitting to the needs of highprecision, multifunction and automatic measurement. It adopts many today's new technologies to achieve high performance, abundant features in the same class. It's designed to aim at the requirements of the largest DMM market from the research, education,industrial electronics,consumer electronics and automotive industries with its innovative technology,industry leading specifications,powerful measurement functions and broad analysis capabilities. RIGOL TECHNOLOGIES, INC.

2 DM368 6½ Digits Digital Multimeter LCD Display Navigation Key Run Control Inputs Function Keys Other Functions Size (W H D):231.6 mm 17. mm 29.5 mm Weight: ~3.2 kg (Without package) Standard interfaces: USB Host,USB Device,RS232,GPIB,LAN(LXIC) Features and Benefits Real 6½ digits readings resolution Easy to measure AC signal with double display Standard Capacitor measurement function 1 groups Preset function

3 Any sensor function Support multiple temperature sensors Support multiple commands File management (support for Udisc and local storage) Math function Statistic function Histogram display Trend display Application example Use the histogram function searching for abnormal signal : Min. Avg. Max. The small signal that scope couldn t see White Noise Histogram Submerged Pulse Noise Histogram Use Trend graphics to detect temperature trends during a long time: Long term trends

4 Abundant basic measurement functions: PERIOD SENSOR DCV DCI FREQ CONT Basic Measurements ACV ACI DIODE CAP 4WR 2WR Extended Measurement Ranges Real Time statistic analysis functions REL P/F Maximum Minimum dbm Real Time statistic analysis functions Average db Realtime Histogram Trend Graphics Standard deviation LXI Certificate and Web remote control UltraSensor Software for any types of electrical sensor measurements

5 Specifications DC Characteristics Function DC Voltage DC Current Resistance [6] Diode Test Continuity Test Range [2] 2.mV 2.V 2.V 2.V 1.V [4] 2.uA 2.mA 2.mA 2.mA 2.A 1.A [5] 2.Ω 2.kΩ 2.kΩ 2.kΩ 1.MΩ 1.MΩ 1.MΩ 2.V [7] 2.Ω Test Current or Burden Voltage <.3V <.25V <.7V <.7V <.12V <.6V 1uA 1uA 2uA 2nA 2nA 1MΩ 24 Hour [3] T CAL ± Day T CAL ± Accuracy Specifications: ± ( % of reading + % of range) [1] 1 Year Temperature Coefficient T CAL ± 5 to (T CAL 5 ) (T CAL + 5 ) to [1] Specifications are for 9minute warmup and 1NPLC integration time. For integration time <1NPLC, add the appropriate RMS Noise Adder listed in the following table. [2] 1% overrange on all ranges except DCV 1V and DCI 1A range. [3] Relative to calibration standards. [4] For each additional volt over ± 5 V, add.3mv error. [5] For continuous current > 7A DC or 7A AC RMS, 3 seconds ON and 3 seconds OFF. [6] Specifications are for 4 wire resistance measurement or 2 wire resistance measurement using REL operation. Without REL operation, add.2 Ω additional error in 2wire 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 create some variation in the voltage drop across a diode junction. Performance Versus Integration Time 5 Hz (6 Hz) Powerline Frequency Integration Time Resolution [1] NMRR [2] Readings/s [3] RMS Noise Adder [4] (% of Range) Number of Power line Cycles (NPLC) (ppm Range) (db) Hz Hz DCV 2V DCV 2V 2V Resistance 2 kω 2 kω DCV 1 V DCI 2 ma 2 ma DCV 2 mv Resistance 2 Ω DCI 1 A [1] Typical value. Resolution is defined as the typical 2V range RMS noise (using auto zero Once ). [2] Normal mode rejection ratio for powerline frequency ±.1%. For powerline frequency ± 1%, subtract 2 db. For ± 3%, subtract 3dB. [3] Maximum rate for DCV, DCI, 2wire resistance and 4wire resistance functions. [4] The basic DC accuracy specifications include RMS noise at 1 NPLC. For <1 NPLC, add RMS Noise Adder to the basic DC accuracy specifications.

6 SFDR & SINAD [1] Function DCV DCI Range 2 mv 2 V 2 V 2 V 1 V 2 ua 2 ma 2 ma 2 ma 2 A SpuriousFree Dynamic Range (SFDR) [1] Typical value. 1dBFS, 1kHz single tone. 1 us aperture time, zero trigger delay, auto zero off and 496 samples. SignaltoNoiseandDistortion (SINAD) Measuring Characteristics DC Voltage Input Resistance Input Protection Input Offset Current CMRR (common mode rejection ratio) Resistance Measurement Method Opencircuit Voltage Max. Lead Resistance (4wire) Input Protection Offset Compensation DC Current Shunt Resistor Input Protection 2 mv, 2 V, 2 V ranges: Selectable 1 MΩ or > 1 GΩ (For these ranges, input beyond ±26V are clamped through 16 kω (typical) 2 V and 1 V ranges: 1 MΩ ± 1% 1 V 5 pa, at 25, typical 14 db for 1 kω unbalance in LO lead, ± 5 VDC peak maximum Selectable 4wire or 2wire resistance Current source referenced to LO input Limited to < 1V 1% of range per lead for 2 Ω, 2 kω ranges, 1 kω per lead on all other ranges 1 V on all ranges Available on 2 Ω, 2kΩ and 2 kω ranges 1 Ω for 2 ua, 2 ma 1 Ω for 2 ma, 2 ma.1 Ω for 2 A, 1 A Externally accessible 5 ma, 25 V fast blow fuse at the rear panel for 2 ua, 2 ma, 2 ma and 2 ma ranges. Internal 1 A, 25 V slow blow fuse for 2 A and 1 A ranges Continuity/Diode Test Response Time Continuity Threshold Autozero OFF Operation (typical value) 3 samples/sec, with audible tone Adjustable from 1 Ω to 2 Ω Following instrument warmup at the environment temperature ±1 and <5 minutes, add.1 % range + 2 uv for DCV and 2 mω for resistance. Settling Time Considerations Reading settling times are affected by source impedance, cable dielectric characteristics and input signal changes. The default measurement delay is selected to give first reading right for most measurements. Measurement Considerations Telon or other highimpedance, lowdielectric absorption wire insulation is recommended for these measurements.

7 AC Characteristics Accuracy Specifications: ±(% of reading + % of range) [1] Function True RMS AC Voltage [4] True RMS AC Current [8] Range [2] 2. mv 2. V 2. V 2. V 75. V [5] 2. ua 2. ma 2. ma 2. ma 2. A 1. A [6] Frequency Range 5Hz 1Hz 1Hz 2kHz 2kHz 5kHz 5kHz 1kHz 1kHz 3kHz 5Hz 1 Hz 1Hz 2kHz 2kHz 5kHz 5kHz 1kHz 1kHz 3kHz 5Hz 1Hz 1Hz 2kHz 2kHz 5kHz 5kHz 1kHz 1kHz 3kHz 5Hz 1Hz 1Hz 2kHz 2kHz 5kHz 5kHz 1kHz 1kHz 3kHz 5Hz 1Hz 1Hz 2kHz 2kHz 5kHz 5kHz 1kHz 1kHz 3kHz 5Hz1Hz 1Hz5kHz 5kHz1kHz 5Hz 1Hz 1Hz 5kHz 5kHz 1kHz 5Hz 1Hz 1Hz 5kHz 5kHz 1kHz 5Hz 1Hz 1Hz 5kHz 5kHz 1kHz 5Hz 1Hz 1Hz 5kHz 5kHz 1kHz 5Hz 1Hz 1Hz 5kHz 24 Hour [3] T CA L ± Day T CAL ± Year T CAL ± Temperature Coefficient to (T CAL 5 ) (T CAL + 5 ) to

8 Additional Low Frequency Errors (% of reading) Additional Crest Factor Errors (nonsinewave) [7] Frequency AC Filter Crest Factor Error (% of reading) Slow Medium Fast 1Hz 2Hz 2Hz 4Hz 4Hz 1Hz 1Hz 2Hz 2Hz 1kHz >1kHz [1] Specifications are for 9minute warmup, slow ac filter and sinewave input. [2] 1% overrange on all ranges except ACV 75 V and ACI 1 A ranges. [3] Relative to calibration standards. [4] Specifications are for sinewave input >5% of range. For inputs within 1% and 5% of range and <5 khz, add.1% of range additional error. For 5kHz to 1kHz, add.13% of range additional error. [5] ACV 75 range limited to 8x17 VoltHz. For input over 3V rms, add.7mv error for each additional volt. Measuring Characteristics True RMS AC Voltage Measurement Method Crest Factor Input Impedance Input Protection AC Filter Bandwidth CMRR (common mode rejection ratio) True RMS AC Current Measurement Method Crest Factor Max. Input Shunt Resistor Input Protection [6] For continuous current > DC 7A or AC RMS 7A, 3 seconds ON and 3 seconds OFF. [7] For frequency blow 1 Hz, the specification of slow filter is only for sinewave input. [8] Specifications are for sinewave input >5% of range. For inputs within 1% to 5% of range, add.1% of range additional error. Specifications are typical values for 2uA and 2mA, 2A and 1A ranges when frequency >1kHz. ACcoupled TrueRMS measurement with up to 4 V DC of bias at on any range. 5 at full range 1MΩ ± 2% in parallel with <15pF capacitance on any range 75V rms on all ranges Slow: 3 Hz 3 khz Medium: 2Hz 3kHz Fast: 2 Hz 3 khz 7 db, for the 1 kω unbalance in LO lead, < 6 Hz, ± 5 VDC peak maximum Direct coupled to the fuse and shunt; ACcoupled True RMS measurement (measure the AC component only). 3 at full range DC + AC current peak value < 3% of range. The RMS current < 1 A rms including the DC component. 1Ω for 2uA, 2mA 1Ω for 2mA, 2mA.1Ω for 2A, 1A Externally accessible 5mA, 25V fast blow fuse at the rear panel for 2uA, 2mA, 2mA and 2mA ranges. Internal 1A, 25 V slow blow fuse for 2A and 1A ranges. Settling Time Considerations The default measurement delay is selected to give first reading right for most measurements. Make sure the RC circuit of input terminal has been fully settled (about 1s) before accurate measurement. Applying > 3 Vrms (or > 5Arms) will cause selfheating in signalconditioning components and these error are included in the instrument specifications. Internal temperature changes due to selfheating may cause additional error on lower ac voltage ranges. The additional error will be lower than.2% of reading and will generally dissipate within a few minutes. Frequency and Period Characteristics Function Frequency, Period Range 2 mv to 75 V Frequency Range 3 Hz 5 Hz 5 Hz 1 Hz 1 Hz 4 Hz 4 Hz 3 khz 3 khz 1 MHz 24 Hour [3] T CAL ± Day T CAL ± Accuracy Specifications: ±(% of reading) [1][2] 1 Year Temperature Coefficient T CAL ± to (T CAL 5 ) (T CAL +5 ) to Frequency 3 Hz5Hz 5 Hz1Hz 1 Hz4Hz 4 Hz1Hz 1 Hz3Hz 3 Hz1 khz >1kHz 1 s (.1ppm).1 s (1ppm) Gate Time (Resolution).1 s (1ppm) Additional Low Frequency Errors: (% of reading).1 s (1ppm) [1] Specifications are for 9 minutes warmup, using 1s gate time. [2] For frequency 3 khz, the specification is the 1% to 11% of range of the AC input voltage. For frequency > 3 khz, the specification is the 2% to 11% of range of the AC input voltage. The maximum input is limited to 75V rms or 8 17 VoltsHz (whichever is less). 2 mv range is full range input or input that is larger than the full range. For 2mV to 2mV, multiply % of reading error 1. [3] Relative to calibration standards.

9 Measuring Characteristics Frequency and Period Measurement Method Input Impedance Input Protection Capacitance Characteristics Function Range [2] Test Current Capacitance 2.nF 2.nF 2.nF 2.uF 2.uF 2.uF 2.mF 2.mF 1.mF Measuring Characteristics Capacitance Measurement Measurement Method Connection Type Reciprocalcounting technique, ACcoupled input using the AC voltage function. 1 MΩ ± 2% in parallel with < 15 pf capacitance on any range 75 V 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. Settling Time Considerations Errors will occur when attempting to measure the frequency or period of an input following a dc offset voltage change. Make sure the RC circuit of input terminal has been fully settled (about 1s) before accurate measurement. 2nA 2uA 1uA 1uA 1 Year T CAL ± Apply constant current into the capacitance, and measure the voltage changing rate. 2wire Measurement Considerations Since small capacitance measurements are susceptible to the external noise, shielding inputs from external noise pickup is critical for minimizing measurement errors. Accuracy Specifications: ± (% of reading + % of range) [1][2] Temperature Coefficient to (T CAL 5 ) (T CAL +5 ) to [1] Specifications are for 9 minutes warm up and using REL operation. Additional errors may be caused by non film capacitors. [2] Specifications are the 1% to 11% of range on 2nF range and 1% to 11% of range on all other ranges. Temperature Characteristics Function Temperature Probe Type RTD [2] (R is within 49 Ω and 2.1 kω) Thermal Resistance Thermocouple [3] Type α =.385 α =.389 α =.391 α = kω 3 kω 5 kω 1 kω 3 kω B E J K N R S T [1] Specifications are for 9 minutes warmup. Exclusive of sensor error. [2] Specification is for 4WR sensor measurement or 2WR measurement using REL operation. Optimum Range 2 to 66 2 to 66 2 to 66 2 to 66 4 to 15 4 to 15 4 to 15 4 to 15 4 to 15 to to 1 21 to to to to to to 4 1 Year T CAL ± Accuracy Specifications [1] Temperature Coefficient to (T CAL 5 ) (T CAL +5 ) to [3] Relative to cold junction temperature, accuracy is based on ITS9. Builtin cold junction temperature refers to the temperature inside the banana jack and its accuracy is ± 2.5. Measuring Characteristics Measurement Considerations The builtin 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 builtin 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.

10 Measurement Rate Function DC Voltage DC Current 2 wire Resistance 4 wire Resistance AC Voltage AC Current [2] Frequency and Period [4] Capacitance [5] Setting.6 NPLC Integration Time.2 NPLC.6 NPLC.2 NPLC 1 NPLC 2 NPLC 1 NPLC 1 NPLC 3 Hz AC Filter 2 Hz 2 Hz 2 Hz 1 s Gate Time.1 s.1 s.1 s [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. Integration Time 1 (1) us 4 (333) us 1.2 (1) ms 4 (3.33) ms 2 (16.7) ms 4 (33.3) ms 2 (167) ms 2 (1.67) s Readings/s 5Hz (6Hz) 1 (1) 25 (3) 833 (1) 25 (3) 5 (6) 25 (3) 5 (6).5 (.6) [3] [4] 2 V range, fast filter, 1kHz input. [5] Measure 2 nf capacitance on 2 nf range. The measurement period changes with the capacitance under test. The maximum measurement period on 1mF is 4 s (typical value). 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 Pretrigger or Postrigger, Internal Trigger or External Trigger, Rising Edge Trigger or Falling Edge Trigger us,.1% Accuracy to 36 s available (about 33 μs step size) to 36 s available (about 33 μs step size) ± 1% of range.1%,.1%, 1% or 1% of reading 1 to 5 Level: 5 V TTL compatible Impedance: > 3 kω in parallel with 5 pf Delay: < 5 μs Jitter: < 5 μs (ACV, ACI, FREQ and PREIOD < 2ms) Polarity: selectable rising edge or falling edge Maximum Rate: 3/s Minimum Pulse Width: 2 μs Level: 5 V TTL compatible Output Impedance: 1 Ω, typical Output Polarity: Falling Edge Pulse Width: about 2μs History Record and Storage Volatile Memory Nonvolatile Memory 512 k reading history data record 1 sets history data storage (5 readings/group) 5 sets sensor data storage (5 readings/group) 1 sets instrument setup storage 5 sets Anysensor setup storage Support USB flash device backup data and setting.

11 General Specifications Display Power Supply Power Consumption Working Environment Storage Temperature Operation Altitude Safety EMC Weight Dimension Remote Interface Programming Language LXI Compatibility Warmup Time LCD, dual display, graphical menu, selectable Chinese or English, online help. AC 1 V 12 V, 45 Hz 44 Hz AC 2 V 24 V, 45 Hz 66 Hz Detect the powerline frequency automatically at poweron, 4Hz defaults to 5Hz 25 VA Max Full accuracy for to 5 Full accuracy to 4, 8% R.H., Noncoagulation 4 to 7 Up to 2 m IEC 6111; EN 6111; UL 6111; CAN/CSAC22.2 No Measurement CAT I 1 V/CAT II 3 V Pollution Degree 2 EN About 3.2 kg (without package) (height width length): 17.mm 231.6mm 29.5mm GPIB, 1/1 Mbit LAN, USB 2. Full Speed Device & Host (support USB flash device), RS232C SCPI LXI Class C, Version minutes DM368 Ordering Information Model Standard Accessories Optional Accessories Description DM368 (6 ½, dualdisplay) Power Cord conforming to the standard of the country Two Test Leads (black and red) Two Alligator Clips (black and red) USB Cable Four Spare Fuses (two kinds): 2 AC, 25 V, T25 ma fuses 2 AC, 25 V, T125 ma fuses Quick Guide Resource CD (User s Guide and Application Software) Kelvin Test Clip RS232 Cable Rack Mount Kit Order Number DM368 CBUSB15 RMDM3 NOTE: All the standard or optional accessories can be ordered from you local RIGOL Office.

12 No For further information, please contact Rigol local Distributors