Product FeaturesProduct Features• Max. reading rate: 125 readings/s• Up to 500,000 points logging memory to record and analyze more data• 5½-digit reading resolution• True-RMS AC Voltage and AC Current measuring• Built-in 10 groups of data storage and 10 groups of setup storage• Strong Math functions, supporting various application protocols• 7'' color touch screen, displaying dual-measurement results concurrently• Type-C interface for power charge; compact in size, freeing up your bench space• Standard USB and LAN interfaces, supporting Web ControlDM858 series benchtop digital multimeter provides a highly cost-effective test tool for engineers. Itfeatures 5.5-digit resolution, max. 125 readings/s, data logging memory of 500,000 points, and0.03% DCV accuracy (1 year). It provides 11 measurement functions for input signals, 5 Mathoperations, and 3 graphical display types, satisfying what most experiments and tests require of amultimeter. The 7'' touch screen allows a clear view on measurement results. Its provides USB andLAN interfaces (standard) as well as the Web Control function for you to control the instrumentdirectly, bringing smoother interaction. It is equipped with a Type-C interface for power charge. Inaddition, it has a compact size and supports the attachment to a bracket, saving valuable benchspace for engineers.

Specifications for Different ModelsDM858DM858EDCV Accuracy (1 year)0.030%0.060%Reading Rate125 readings/s80 readings/sNo. of Points in DataLogging Memory500,00020,000Max. Current MeasurementRange10 A

3AMax. CapacitanceMeasurement Range10 mF1 mFPage 1SpecificationsUnless otherwise noted, all the technical specifications can be guaranteed for 30-minute warm-up,slow measurement mode, and calibration temperature within 18℃ and 28℃.

DC CharacteristicsAccuracy ± (% of reading + % of range)1 yearRange[1]Test Current orLoad Voltage100.000 mV-1.00000 V-10.0000 V-100.000 V-1000.00 V[2]-100.000 μA<0.05 V0.055 + 0.0051.00000 mA<0.5 V0.055 + 0.00510.0000 mA<0.05 V0.095 + 0.020100.000 mA<0.5 V0.070 + 0.0081.00000 A<0.01 V0.170 + 0.0203.00000 A (for DM858E)<0.1 V0.250 + 0.01010.0000 A (for DM858)[4]<0.1 V0.250 + 0.010100.000 Ω1 mA0.050 + 0.0201.00000 kΩ100 μA0.050 + 0.02010.0000 kΩ10 μA0.050 + 0.020100.000 kΩ1 μA0.10 + 0.051.00000 MΩ1 μA1.00 + 0.0510.0000 MΩ100 nA1.50 + 0.05100.000 MΩ10 nA3.00 + 0.05Diode Test2.0000 V[6]350 μA0.050 + 0.15Short-circuit Test1000 Ω100 μA0.3 + 0.15FunctionDC Voltage(DCV)DC Current[3](DCI)Resistance (R)[5]23℃ ± 5℃0.03 + 0.004 (DM858)0.06 + 0.004 (DM858E)0.03 + 0.003 (DM858)0.06 + 0.003 (DM858E)0.03 + 0.004 (DM858)0.06 + 0.004 (DM858E)0.03 + 0.003 (DM858)0.06 + 0.003 (DM858E)0.03 + 0.003 (DM858)0.06 + 0.003 (DM858E)Page 2DC Voltage100 mV, 1 V: 11.2 MΩ or >10 GΩ (selectable)Input Resistance(Input signals that exceed ± 2.5 V in these ranges will pass the 1 MΩ (typical)clamp resistance.)10 V, 100 V, and 1000 V: 11.2 MΩ ± 5%Input Bias Current<300 pA, 25℃Input Protection1000 V on all rangesCMRR (CommonMode RejectionRatio)120 dB (for the 1 kΩ unbalanced resistance in LO lead, max. ± 500 VDC)NMRR (NormalMode RejectionRatio)60 dB at "slow" rateResistanceMeasurementMethod4-wire resistance or 2-wire resistanceCurrent source referenced to LO inputOpen CircuitVoltageLimited to <5 VMax. LeadResistance10% of range per lead for 100 Ω and 1 kΩ ranges(4-wire)
Input Protection

1 kΩ per lead on all other ranges1000 V on all rangesDC Current100 μA: <0.05 V1 mA: <0.05 VShunt Resistor100 μA, 1 mA: 330 Ω10 mA, 100 mA: 3.3 Ω1 A, 3 A, 10 A: 0.008 Ω (3 A only available for DM858E and 10 A only availablefor DM858)Input ProtectionDM858: replaceable 10 A, 250 V fast-blow fuse on the front panel; 12 A, 1000 Vfast-blow fuse internalDM858E: replaceable 3.15 A, 250 V fast-blow fuse on the front panel; 3.15 A,1000 V fast-blow fuse internalShort Circuit/Diode TestMeasurementMethodPage 3Short circuit test: 100 μA ± 5% constant current source, <5 V open-circuitvoltageDiode test: 350 μA ± 5% constant current source, <5 V open-circuit voltageShort Circuit/Diode TestResponse TimeDM858: 125 samples/s; DM858E: 80 samples/s, with beeper settingShort CircuitResistanceAdjustable from 1 Ω to 1000 ΩInput Protection1000 VSetup Time AttentionsThe setup time about voltage measurement is affected by source impedance, dielectriccharacteristics of test cable, and input signal changes.

NOTE:[1]: 20% over range on all ranges except DCV 1000 V, ACV 750 V, DCI 10 A, 3 A, and ACI 10 A, 3 A.
[2]: 0.02 mV additional error per 1 V over the first ±500 VDC.
[3]: For 100 μA, 1 mA, 10 mA, and 100 mA ranges, the internal current sensing resistor needs to becooled when measuring >1 A current for more than 15 minutes.
[4]: 10 A is only available for DM858. The max. current range for DM858E is 3 A. For continuouscurrent greater than DC 7 A or AC RMS 7 A, 30 seconds ON and 30 seconds OFF.
[5]: Specifications are for 4-wire resistance measurement or 2-wire resistance measurement usingthe "Relative" operation. ±0.2 Ω additional errors will be added in performing 2-wire resistancemeasurement without using the "Relative" operation.
[6]: The accuracy specifications are for the voltage measured at the input terminals only. The typicalvalue of the test current is 350 μA. Variation in the current source will cause some variation in thevoltage drop across a diode junction.

AC CharacteristicsAccuracy ± (% of reading + % of range)Page 4FunctionRange[1]100.000 mV1.00000 VTrue-RMS ACVoltage (ACV)[2]10.0000 V100.000 V750.00 VPage 5Frequency Range1 year23℃ ± 5℃20 Hz to 45 Hz1.5 + 0.245 Hz to 1 kHz0.2 + 0.11 kHz to 5 kHz1.0 + 0.15 kHz to 8 kHz3.0 + 0.120 Hz to 45 Hz1.5 + 0.245 Hz to 1 kHz0.2 + 0.11 kHz to 5 kHz1.0 + 0.15 kHz to 8 kHz3.0 + 0.120 Hz to 45 Hz1.5 + 0.245 Hz to 1 kHz0.2 + 0.11 kHz to 5 kHz1.0 + 0.15 kHz to 8 kHz3.0 + 0.120 Hz to 45 Hz1.5 + 0.245 Hz to 1 kHz0.2 + 0.11 kHz to 5 kHz1.0 + 0.15 kHz to 8 kHz3.0 + 0.120 Hz to 45 Hz1.5 + 0.245 Hz to 1 kHz0.2 + 0.11 kHz to 5 kHz1.0 + 0.15 kHz to 8 kHz3.0 + 0.1FunctionRange[1]100.000 μA1.00000 mA10.0000 mATrue-RMS ACCurrent (ACI)[3]100.000 mA1.00000 A3.00000 A (for DM858E)10.0000 A (for DM858)[4]Frequency Range1 year23℃ ± 5℃20 Hz to 45 Hz1.50 + 0.1045 Hz to 1 kHz0.50 + 0.101 kHz to 8 kHz2.50 + 0.2020 Hz to 45 Hz1.50 + 0.1045 Hz to 1 kHz0.50 + 0.101 kHz to 8 kHz2.50 + 0.2020 Hz to 45 Hz1.50 + 0.1045 Hz to 1 kHz0.50 + 0.101 kHz to 8 kHz2.50 + 0.2020 Hz to 45 Hz1.50 + 0.1045 Hz to 1 kHz0.30 + 0.101 kHz to 8 kHz2.50 + 0.2020 Hz to 45 Hz1.50 + 0.2045 Hz to 1 kHz0.50 + 0.201 kHz to 8 kHz2.50 + 0.2020 Hz to 45 Hz1.50 + 0.1545 Hz to 1 kHz0.50 + 0.151 kHz to 8 kHz2.50 + 0.2020 Hz to 45 Hz1.50 + 0.1545 Hz to 1 kHz0.50 + 0.151 kHz to 8 kHz2.50 + 0.20Additional Crest Factor Error (non-sinusoidal waveforms)[5]Crest FactorError (% of range)1 to 20.052 to 30.2True RMS AC Voltage (ACV)MeasurementMethodAC-coupled True-RMS - measure the AC component of input with up to 1000V DC bias on any rangeCrest Factor≤3 at full scaleInput Impedance11.2 MΩ ± 5%, in parallel with <100 pF capacitance on any rangeAC FilterBandwidth20 Hz to 8 kHzCMRR (CommonMode RejectionRatio)60 dB (for the 1 kΩ imbalance resistance in LO lead and <60 Hz, max. ±500VDC)True RMS AC Current (ACI)MeasurementMethodDirect coupled to the fuse and shunt; AC-coupled True RMS measurement(measure the AC component)Crest Factor≤3 at full scalePage 6True RMS AC Current (ACI)Max. InputDC + AC current peak value <300% of range;RMS current with DC current component: DM858: <10 A; DM858E: <3 A100 μA, 1 mA: 330 ΩShunt Resistor10 mA, 100 mA: 3.3 Ω1 A, 3 A, 10 A: 0.008 Ω (3 A only available for DM858E and 10 A only availablefor DM858)Input ProtectionDM858: replaceable 10 A, 250 V fast-blow fuse on the front panel; 12 A, 1000 Vfast-blow fuse internalDM858E: replaceable 3.15 A, 250 V fast-blow fuse on the front panel; 3.15 A,1000 V fast-blow fuse internalSetup Time AttentionsMake sure that the RC return at input terminal has been in a stable state completely (higher than 3s) before accurate measurement.
Input >300 Vrms (or >5 Arms) will cause the self-heating of the signal conditioning component togenerate error which is included in the characteristics of the instrument. Internal temperaturevariation due to the self-heating will cause an additional error on the lower AC range. The error issmaller than 0.03% of readings and will disappear after a few minutes.

NOTE:[1]: 20% over range on all ranges except DCV 1000 V, ACV 750 V, DCI 10 A, 3 A, and ACI 10 A, 3 A.
[2]: Specifications are for sine-wave inputs >5% of the range. For the 750 VAC range, it is limited to 8x 107 Volts-Hz. For 5 kHz to 8 kHz, add 0.13% of range additional error.
[3]: Specifications are for sine-wave inputs >5% of the range. For 100 μA, 1 mA, 10 mA, and 100 mAranges, the internal current sensing resistor needs to be cooled if >1 A current is applied for morethan 15 minutes.
[4]: 10 A is only available for DM858. The max. current range for DM858E is 3 A. For continuouscurrent greater than DC 7 A or AC RMS 7 A, 30 seconds ON and 30 seconds OFF.
[5]: For frequency <100 Hz.

Frequency and Period CharacteristicsAccuracy ± (% of reading + % of range)Page 7FunctionRangeFrequency Range1 year23℃ ± 5℃20 Hz to 2 kHz0.01 + 0.0032 kHz to 20 kHz0.01 + 0.00320 kHz to 50 kHz0.01 + 0.00350 kHz to 100 kHz0.01 + 0.006100 mV to 750 V[1]Frequency/PeriodDM858: 100 μA to 10 A[2] 20 Hz to 2 kHz0.01 + 0.003DM858E: 100 μA to 3 A[3] 2 kHz to 10 kHz0.01 + 0.003Measurement AttentionsAll frequency counters are susceptible to error when measuring low-voltage, low-frequency signals.
Shielding inputs is critical for minimizing measurement errors from external noise.
Setup Time AttentionsErrors will occur when attempting to measure the frequency or period of the signal with a DC offsetvoltage change. Make sure that the RC return at input terminal has been in a stable statecompletely (higher than 3 s) before accurate measurement.

NOTE:[1]: 100 mV: the specifications are for AC input voltage of 35% to 120% of range in <20 kHzfrequency; 1 V, 10 V, 100 V, 750 V: the specifications are for AC input voltage of 35% to 120% ofrange (750 V range is limited to 750 Vrms).
[2]: 100 μA to 10 A: the specifications are for AC input current of 20% to 120% of range (10 A rangeis limited to 10 Arms).
[3]: 100 μA to 3 A: the specifications are for AC input current of 20% to 120% of range (3 A range islimited to 3 Arms).

Capacitance CharacteristicsAccuracy ± (% of reading + % of range)[1]Page 8FunctionCapacitance1 yearRange[2]Max. Testing Current1.000 nF200 nA5 + 1.510.00 nF200 nA5 + 1.5100.0 nF2 μA1 + 0.51.000 μF10 μA1 + 0.510.00 μF10 μA1 + 0.5100.0 μF100 μA1 + 0.51.000 mF0.5 mA2 + 0.510.00 mF (for DM858)[3]1 mA2 + 0.523℃ ± 5℃Capacitance MeasurementTesting MethodMeasure the rate of voltage change generated during the current flowing intothe capacitanceConnection Type2-wireInput Protection1000 V on all rangesMeasurement AttentionsDue to external noise, measurement errors can occur when measuring small capacitance. Shieldinginputs is critical for minimizing such errors.

NOTE:[1]: Specifications are guaranteed when the "Relative" operation is enabled. Additional errors may becaused by non-film capacitors.
[2]: Specifications are guaranteed when the capacitance range is between 10% and 120%.
[3]: 10 mF is only available for DM858. The max. measurement range for DM858E is 1 mF.

Trigger CharacteristicsTrigger CharacteristicsTrigger SourceAuto, Single, ExternalSamples Per SingleTrigger1 to 2000Slow: 400 ms to 2000 msAuto TriggerIntervalMedium: 50 ms to 2000 msFast: 8 ms to 2000 ms (DM858); 12 ms to 2000 ms (DM858E)Reading HoldSensitivityPage 90.01%, 0.1%, 1%, or 10% of the readingTrigger CharacteristicsExternal TriggerInputVMC OutInput Level5 V TTL-compatibleTrigger ConditionRising edge/falling edge/high level/low levelInput Impedance>20 kΩ, in parallel with 400 pF, DC-coupledMin. Pulse Width500 μsLevel5 V TTL-compatibleOutput PolarityPositive/negativeOutput Impedance200 Ω, typicalSlow: 1 ms to 399 msOutput Pulse Width Medium: 1 ms to 49 msFast: 1 ms to 7 ms (DM858); 1 ms to 11 ms (DM858E)Other Measurement CharacteristicsAny SensorTC: B, E, J, K, N, R, S, TTemperatureSensorRTD: 385 (0.00385), 389 (0.00389), 391 (0.00391), 392 (0.00392) temperaturecoefficientThermal: 2.2 kΩ, 3 kΩ, 5 kΩ, 10 kΩ, 30 kΩ resistance coefficientUser-definedSensorSupports DCV, DCI, 2-wire resistance, 4-wire resistance, and frequency sensorsHistory and StorageVolatile MemoryDM858: 500,000 readingsDM858E: 20,000 readings10 groups of history data storage (DM858: 500,000 readings/group; DM858E:20,000 readings/group)Non-volatileMemory10 groups of any sensor setup storage (DM858: 500,000 readings/group;DM858E: 20,000 readings/group)10 groups of instrument setting storageSupports USB external storage extensionMath OperationdBm, dB, Relative, Statistics (Maximum/Minimum/Average/Standard Deviation), Limit, Histogram,Bar Chart, and TrendGeneral SpecificationsPower SupplyPower InterfaceType-C interfacePower VoltageDC, 12 V, 3 AConsumption10 W (max.)
Page 10Mechanical CharacteristicsDimensionsWeight266 mm (W) x 165 mm (H) x 80 mm (D)Package excluded: <2 kgPackage included: <3 kgRemote InterfaceUSB Host1 on the front panelUSB Device1 on the rear panelLAN Port1 on the rear panel, 10/100 Base-T, supporting LXI-COthersLCD7-Inch color touch screenFull accuracy: 0ºC to 50ºC, 80% RH, 40℃, without condensationOperatingEnvironmentStorage temperature: -20℃ to 60℃Shock and vibration: conforming to MIL-T-28800E, III, 5 level (only for sine)Altitude: up to 3,000 metersSafetyConforming to IEC61010-1: 2001. Measure CAT I 1000 V/CAT II 300 V. Class ofpollution: 2ProgrammingLanguageStandard SCPI commandsWarm-up Time30 minutesWarranty and Calibration IntervalWarranty and Calibration IntervalWarranty3 years (excluding the accessories)RecommendedCalibrationInterval12 monthsPage 11Order Information and WarrantyPeriodOrder InformationOrder InformationOrder No.

ModelDM858 (5½ Digital Multimeter)DM858DM858E (5½ Digital Multimeter)DM858EStandard AccessoriesPower Adaptor Conforming to the Standard of the DestinationCountry——Two Alligator Clips (Black and Red)ALLIGATORCLIP-DMMTwo Digital Multimeter Test Pens (Black and Red)LD-DMTwo Backup Fuses:DM858: AC, 250 V, F10 A——DM858E: AC, 250 V, F3.15 AOptional AccessoriesKelvin Test ClipKELVINTESTCLIP-DMMUSB Cable (150 cm)CB-USBA-USBB-FF-150NOTE:For all the mainframes, accessories, and options, please contact the local office of RIGOL.

Warranty PeriodThree years for the mainframe, excluding the accessories.

Page 12Option Ordering and InstallationProcess1. According to the usage requirements, please purchase the specified function options from RIGOLSales Personnel, and provide the serial number of the instrument that needs to install the option.
2. After receiving the option order, the RIGOL factory will mail the paper software productentitlement certificate to the address provided in the order.
3. Log in to RIGOL official website for registration. Use the software key and instruments serialnumber provided in the entitlement certificate to obtain the option license code and the optionlicense file.
4. Download the option license file to the root directory of the USB storage device, and connect theUSB storage device to the instrument properly. After the USB storage device is successfullyrecognized, the Option install menu is activated. Press this menu key to start installing theoption.

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