SIGLENT SDM3065X User Manual
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SIGLENT SDM3065X User Manual

SIGLENT SDM3065X User Manual

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User Manual
SDM3065X Digital Multimeter
UM06036-E01B
2017 SIGLENT TECHNOLOGIES CO., LTD

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Summary of Contents for SIGLENT SDM3065X

  • Page 1 User Manual SDM3065X Digital Multimeter UM06036-E01B 2017 SIGLENT TECHNOLOGIES CO., LTD...
  • Page 3 SIGLENT TECHNOLOGIES CO., LTD. All rights reserved. Trademark Information SIGLENT is registered trademark of SIGLENT TECHNOLOGIES CO., LTD. Statement ● SIGLENT products are protected by patent laws in and outside of the P.R. China. ● SIGLENT reserves the rights to change the specification and price. ●...

  • Page 4: General Safety Summary

    Do not operate with suspected failures If you suspect that the product is damaged, please contact SIGLENT‟s qualified service personnel to inspect it. Any repair and adjustment to the product or replacing a component should be done by qualified personnel only.
  • Page 5 SIGLENT Antistatic protection. Static electricity will cause damages to the instrument, so test in antistatic areas as far as possible. Ground its inner and outer conductors to release the static electricity temporarily before connecting the cable to the instrument. Keep good ventilation.
  • Page 6 SDM3065X is capable of making measurements with the HI and LO inputs connected to mains in such devices (up to 600VAC) or the branch outlet itself.

  • Page 7: Safety Terms And Symbols

    SIGLENT Safety Terms and Symbols Terms in this manual. Terms may appear in this manual. WARNING: Warning statements indicate the conditions and behaviors that could result in injury or loss of life. CAUTION: Caution statements indicate the conditions and behaviors that could result in damage to this product or other properties.

  • Page 8: Daily Maintenance And Cleaning

    SIGLENT Daily Maintenance and Cleaning Maintenance When storing or placing the instrument, please avoid the liquid crystal display from direct sunlight for a long time. NOTE: To avoid damages to the instrument or probe, please don‟t place them in mist, liquid or solvent.

  • Page 9: Introduction Of Sdm3065X

    SIGLENT Introduction of SDM3065X SDM3065X is a 6½ dual-display instrument, especially fitting to the needs of high-precision, multifunction, and automation measurements. It realized a combination of basic measurement functions, multiple math functions, and display functions, etc. SDM3065X holds a 4.3 inch color TFT-LCD display screen with 480*272 high resolutions.

  • Page 10: Abstract

    The manual mainly introduces corresponding information of operating the SDM3065X Digital Multimeter. It contains these chapters: Chapter 1 Quick Start Guide you to prepare the SDM3065X Digital Multimeter and know about the Front/Back panel and user interface. Chapter 2 Function and Operation Introduce the functions and operations of SDM3065X in details.

  • Page 11: Table Of Contents

    Copyright and Statement .................. I General Safety Summary ................. II Safety Terms and Symbols ................V Daily Maintenance and Cleaning ..............VI Introduction of SDM3065X ................VII Abstract ......................VIII Chapter 1 Quick Start .................. 1 General Inspection ..................2 To adjust the Handle .................
  • Page 12 Crest Factor Errors (non-sinusoidal inputs) ..........91 Loading Errors (AC Voltage) ..............92 Chapter 4 General Troubleshooting ............93 Chapter 5 Appendix ................... 94 Appendix A: Accessories ................ 94 Appendix B: Warranty summary ............. 95 Appendix C: Contact SIGLENT ............... 96 SDM3055 Digital Multimeter...

  • Page 13: Chapter 1 Quick Start

    SIGLENT 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 Size ...

  • Page 14: General Inspection

    SIGLENT would not be responsible for free maintenance/ rework or replacement of the unit. 2. Inspect the instrument. In case of any damage, or defect, or failure, notify your SIGLENT sales representative. 3. Check the accessories. Check the accessories according to the packing list. If the accessories are incomplete or damaged, please contact your SIGLENT sales representative.

  • Page 15: To Adjust The Handle

    SIGLENT To adjust the Handle Adjust the handle position of SDM3065X properly to place the instrument stably so that users can manipulate and observe the display better. Please grip the handle by the two sides and pull it outward. Then rotate the handle to the appropriate position.

  • Page 16: Appearance And Size

    SIGLENT Appearance and Size 293.75mm 260 .27mm Diagram 1- 4 Appearance and Size SDM3055 Digital Multimeter...

  • Page 17: Front Panel

    SIGLENT Front Panel Diagram 1- 5 Front Panel Overview USB Host By using this interface, users can store the current state or measurement data into USB storage device. Users can also read the state files or updated firmware from USB storage device.
  • Page 18 SIGLENT DC Voltage /Current Measurement AC Voltage/ Current Measurement 2-Wire /4-Wire Resistance Measurement Frequency /Capacitance Measurement Continuity /Diode Test Temperature Measurement/ Enable Multiple Scan Card Function Enable Dual-display Function /Set Up the Utility Acquire Function /Help System Math Function /Display Function...
  • Page 19 SIGLENT Range and Direction Keys Increase the measurement range Decrease the measurement range Select auto or manual range Set up measurement parameter Move the cursor Page or down Set up measurement parameter Move the cursor Apply the current setting Signal Input Terminals The measured signal (device) will be connected into the multimeter through these terminals.

  • Page 20: Back Panel

    SIGLENT Back Panel Diagram 1- 6 Back Panel Overview 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.
  • Page 21 An optional 16-channel Data Acquisition Module can be installed in the instrument. USB Device Connect the PC through this interface. You can use SCPI commands or PC software to control SDM3065X remotely. Through this interface, the multimeter can be connected to the network for remote control. VMC Output...
  • Page 22 SIGLENT Trig] connector. Note the external trigger source must be selected. Current Input Fuse The multimeter is already installed with a current Input fuse to provide 10 A maximum input protection before leaving factory. To replace a new one, please: 1) Turn off the multimeter and remove the power cord.

  • Page 23: Start The Multimeter

    1. Make sure the power cord is in good connection. 2. Try to restart the multimeter, if it fails, check the power fuse and replace a new one when necessary. 3. If the problem still remains, please contact SIGLENT. SDM3055 Digital Multimeter...

  • Page 24: User Interface

    SIGLENT User Interface Control Mode LAN Status Icon Trigger Mode Measureme Function Measureme Result Range Operation Menu Diagram 1- 9 User Interface SDM3055 Digital Multimeter...

  • Page 25: Measurement Connections

    SIGLENT Measurement Connections SDM3065X 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.
  • Page 26 SIGLENT Resistance Measurement (2-wire) Resistance Measurement (2-wire) Capacitance Measurement Frequency/Period Measurement Continuity Measurement Diode Measurement SDM3055 Digital Multimeter...
  • Page 27 SIGLENT Temperature Measurement （For RTD and thermcouple sensors） SDM3055 Digital Multimeter...

  • Page 28: To Use The Built-In Help System

    SIGLENT To Use the Built-in Help System To obtain built-in help information of the product, please press 【shift】+ 【Acquire】 to enter help system, then use the direction keys to choose the help item you want, finally press 【OK】to obtain help information The common help information is listed as the following: Basic Measure.

  • Page 29: Chapter 2 Function And Operation

    SIGLENT Chapter 2 Function and Operation 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 ...

  • Page 30: Measurement Configuration

    SIGLENT 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.

  • Page 31: Range

    SIGLENT Range SDM3065X 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.
  • Page 32 SIGLENT Note: 1. “overload” will be displayed when the input signal exceeds the current range. 2. By default, the range is set to Auto at power-on or after a reset. 3. Auto mode is recommended if you are not sure about the measurement range in order to protect the instrument and obtain accurate data.

  • Page 33: Intergration Time And Resolution

    The integration time applies to DCV, DCI, 2WR and 4WR measurements. SDM3065X express the integration time by the power line cycles, the unit is PLC. The multimeter automatically detects the input power frequency at power-on.
  • Page 34 SIGLENT Table 2-2 Relationship between reading resolution and integration time Resolution Intergration time 0.005 PLC / 0.006PLC 4½ 0.05 PLC / 0.06PLC 0.5 PLC / 0.6PLC 5½ 1 PLC 6½ 10 PLC 100 C 2. In ACV, ACI ,FREQ/PERIOD measurements, the resolution is fixed at 6½...

  • Page 35: Dc Impedance

    SIGLENT DC Impedance DC impedance applies to DCV measurement. The default is “10MΩ”. In the range of 200 mV, 2 V or 20 V, you can choose “>10GΩ” to reduce the loading error to the measured object caused by the multimeter In the range of 200 mV, 2 V or 20 V under DCV measurement, press 【Input Z】...

  • Page 36: Auto Zero

    SIGLENT Auto Zero Auto zero (Auto Zero) applies to DCV, DCI, 2WR and 4WR measurements. Enter the specific measurement function and press【Auto Zero】in the menu to perform the setting, as shown in Diagram 2-5 (take DCV measurement for instance). Diagram 2-5 Turn on or off Auto Zero ...

  • Page 37: Ac Filter

    AC Filter AC filter applies to ACV and ACI measurements. It can optimize the low-frequency accuracy and minimize the AC settling time. SDM3065X provides three types of AC filters (>3Hz, >20Hz, >200Hz). The AC filter to be used is determined by the input signal frequency. You...

  • Page 38: Short-Circuit Resistance

    SIGLENT 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 50 Ω and the setting is stored in nonvolatile memory.

  • Page 39: Gate Time

    SIGLENT Gate Time Gate time (also called Aperture Time) applies to FREQ/PERIOD 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.

  • Page 40: Basic Measurement Functions

    SIGLENT Basic Measurement Functions SDM3065X Digital Multimeters have following basic functions:  To Measure DC Voltage  To Measure AC Voltage  To Measure DC Current  To Measure AC Current  To Measure 2/4-Wire Resistance  To Measure Capacitance ...

  • Page 41: To Measure Dc Voltage

    SIGLENT To Measure DC Voltage Range: 200mV, 2V, 20V, 200V, 1000V Max Resolution: 100nV (in the range of 200mV) Input Protection: a 1000 V protection is available in all ranges and a 10% overrange for all ranges except 1000 V range. If the reading exceeds the range, “overload”...
  • Page 42 SIGLENT Press 【Aperture】and choose the number of power-line cycles (PLCs) to use for the measurement. Selecting 100 PLC provides the best noise rejection and resolution, but the slowest measurements 5. Autozero setting Press 【Auto Zero】 to enable or disable this function. Autozero provides the most accurate measurements, but requires additional time to perform the zero measurement.With autozero enabled (On), the DMM internally...

  • Page 43: To Measure Dc Current

    SIGLENT To Measure DC Current Range: 200μ A, 2 mA, 20 mA, 200 mA, 2A, 10A Max Resolution: 0.1nA (in the range of 200μ A) Input Protection: a 10A protection is available in all ranges and a 10% overrange for all ranges except 10A range. If the reading exceeds the range, “overload”...
  • Page 44 SIGLENT Press 【Aperture】and choose the number of power-line cycles (PLCs) to use for the measurement. Selecting 100 PLC provides the best noise rejection and resolution, but the slowest measurements 5. Autozero setting Press 【Auto Zero】 to enable or disable this function. Autozero provides the most accurate measurements, but requires additional time to perform the zero measurement.With autozero enabled (On), the DMM internally...

  • Page 45: To Measure Ac Voltage

    SIGLENT To Measure AC Voltage Range: 200mV, 2V, 20V, 200V, 750V Max Resolution: 100nV (in the range of 200mV) Input Protection: a 750 V protection is available in all ranges and a 10% overrange for all ranges except 750 V range. If the reading exceeds the range, “overload”...
  • Page 46 SIGLENT Press【Filter】and choose the filter for the measurement. The instrument provides three different AC filters --“>3Hz”, “>20Hz” and “>200Hz”. You should generally select the highest frequency filter whose frequency is less than that of the signal you are measuring, 5. Set the relative value (Optional operation) Press 【Rel】...

  • Page 47: To Measure Ac Current

    SIGLENT To Measure AC Current Range: 200μ A, 2 mA, 20 mA, 200 mA, 2A, 10A Max Resolution: 0.1nA (in the range of 200μ A) Input Protection: a 10A protection is available in all ranges and a 10% overrange for all ranges except 10A range. If the reading exceeds the range, “overload”...
  • Page 48 SIGLENT Press【Filter】and choose the filter for the measurement. The instrument provides three different AC filters --“>3Hz”, “>20Hz” and “>200Hz”. You should generally select the highest frequency filter whose frequency is less than that of the signal you are measuring, 5. Set the relative value (Optional operation) Press 【Rel】...

  • Page 49: To Measure Resistance

    If the reading exceeds the range, “overload” will be displayed. SDM3065X provides 2-wire and 4-wire resistance measurements. When the measured resistance is lower than 100 kΩ, the 4-wire resistance measurement is recommended to reduce the measurement error caused by test lead...
  • Page 50 SIGLENT Diagram 2- 14 4 Wire Resistance Measurement Interface 2. Make connection Connect the test leads with the measured signal by referring to “Measurement Connections”. 3. Set the range Press 【Range】 to select a range for the measurement. You can also use , and keys on the front panel to select the range.
  • Page 51 SIGLENT the reading displayed is a value which comes from the result of actual measurement value subtracts the relative value that has been set. The default relative value is the measurement value when the function is opened.(Please refer to “ Math Functions” in Chapter 2 to know about the details.)

  • Page 52: To Measure Capacitance

    SIGLENT To Measure Capacitance Range: 2nF, 20nF, 200nF, 2μ F, 20μ F, 200μ F, 2mF, 20mF, 100mF Max Resolution: 1pF (in the range of 2nF) Input Protection: a 1000 V protection is available in all ranges. If the reading exceeds the range, “overload” will be displayed.
  • Page 53 SIGLENT the reading displayed is a value which comes from the result of actual measurement value subtracts the relative value that has been set. The default relative value is the measurement value when the function is opened.(Please refer to “ Math Functions” in Chapter 2 to know about the details.)

  • Page 54: To Measure Frequency Or Period

    SIGLENT To Measure Frequency or Period Frequency (Period) Range: From 3 Hz to 1MHz (from 0.33s to 1μ s) Input Signal Range: 200mV, 2V, 20V, 200V, 750V Input Protection: a 750 V protection is available in all ranges. Operating Steps: 1.
  • Page 55 SIGLENT 3. Set the range Press 【Range】 to select a range for the measurement. You can also use , and keys on the front panel to select the range. Auto (autorange) automatically selects the range for the measurement based on the input. Autoranging is convenient, but it results in slower measurements than using a manual range.

  • Page 56: To Test Continuity

    SIGLENT To Test Continuity Test Current Source: 1mA Max Resolution: 0.01Ω Input Protection: 1000V Input Protection Open-circuit Voltage: <8V Beep Threshold (short-circuit resistance)：from 0Ω to 2000Ω This function measures the resistance of the circuit with about 1mA curren source. When the measured resistance is lower than the short-circuit resistance (Threshold), the beeper sounds(if the Beeper is on).
  • Page 57 SIGLENT 4. Read the measurement value The multimeter measures the input signal according to the current measurement settings and displays the measurement result on the screen. 5. Make math operation (advanced) You can perform math operation (Statistics, Limit) on every measurement reading.

  • Page 58: To Test Diode

    SIGLENT To Test Diode Test Current Source:1mA Voltage Measurement Range:0V~4V Max Resolution:10μ V Input Protection: 1000V Input Protection Open-circuit Voltage:<8V This function measures the forward voltage drop on the diode. When the voltage is lower than Threshold, the beeper sounds (if the beeper is on).
  • Page 59 SIGLENT the reading exceeds the threshold, “open” will be displayed. 5. Evaluate the results of measurement Reverse the probes and measure the forward voltage drop on the diode again. Evaluate the diode according to the following rules:  If the Multimeter displays “open” when in reverse bias model, it indicates that the diode is normal.

  • Page 60: To Measure Temperature

    SIGLENT To Measure Temperature SDM3065X can directly measure the temperature using TC (Thermocouple) and THERM (Thermistor) sensors. Operating Steps: 1. Enable the Diode measurement Press on the front panel to enter the Temperature measurement interface, as shown in Diagram 2- 20.
  • Page 61 SIGLENT 4. Set the display mode Press 【Display】to choose the display mode. The Multimeter supports three display modes: Temperature Value, Measured Value and All (Temperature Value and Measured Value will be shown on the display together). Diagram 2- 22 Choose Display Mode of Temperature Measurement 5.
  • Page 62 SIGLENT screen. 8. Make math operation (advanced) You can perform math operation (Statistics, Limit and REL) on every measurement reading. For details, please refer to “Math Operations”. 9. Display the graph (advanced) You can analyze the measurement data by using “Bar Meter”, “Trend Char”...

  • Page 63: Dual-Display Function

    SIGLENT Dual-display Function Dual-display function is used to improve test and measurement functions. Press to open Dual-display function and the upper right corner will show “Dual”. By this time, press a function key if this function can be used as the vice display, it will be displayed in the Vice Display.
  • Page 64 SIGLENT Instruction: 1. If the same measurement function is used in both Main and Vice Display.  The readings in both of the display will update at the same time.  If math function (dBm, dB) is used in Main Display, when opening Vice Display, math operation will be closed automatically and Vice Display will show the same measurement result as Main Display.

  • Page 65: Utility Function

    SIGLENT Utility Function The Utility function enables users to set up system parameters, interface parameters of the multimeters. Press to enter the operating menu of Utility function, as the following diagram shows. Diagram 2- 24 Utility Function Configuration Interface Table 2- 1 Utility Function Menu Description...

  • Page 66: Store And Recall

    SIGLENT Store and Recall The Store/Recall function enables users to store and recall the instrument state and data files in the local storage as well as in USB storage. After entering into the function menu of Utility, press 【Store/Recall】to enter the interface as shown in diagram 2-25.
  • Page 67 SIGLENT Diagram 2- 26 Store Settings Interface Table 2- 3 Storage Function Menu Description Function Settings Description Menu Browse Choose the location that file will be saved. File Name Input the file name. Type .xml / .csv Choose the type of file that will be saved.
  • Page 68 SIGLENT Diagram 2- 28 Input Fire name The method of inputting file name:  Press direction keys to select a desired char in the input area.  Press “OK” key on the front panel to input selected char in the input area.
  • Page 69 SIGLENT menu of Store/Recall , press 【Recall Settings】 to enter the following interface. Diagram 2- 29 Recall Settings Interface Use direction keys or menu operation keys to choose the state file with the suffix “.xml”. Press【Select】to read the file and retore the instrument to specified state.

  • Page 70: Manage File

    SIGLENT Manage File The Manage Files function allows you to create, copy, delete, and rename files and folders in the instrument's internal flash memory or on a USB drive attached to the front panel. It also allows you to capture the current screen to a bitmap (*.bmp) file.

  • Page 71: I/O Configuration

    SIGLENT I/O Configuration Press【I/O Config】to enter the following interface and set up the parameters. Diagram 2- 31 I/O Configuration Interface LAN Settings The Multimeter enables users to operate instrument remotely by LAN interface and store or recall internet settings. You can look over current LAN settings and set up IP address and subnet mask.
  • Page 72 SIGLENT Mask Gateway Set up gateway Cancel Cancel current operation and return to the higher level menu. Done Save all changes and return to the higher level menu. GPIB Settings Each device on the GPIB (IEEE–488) interface must have a unique address.

  • Page 73: Board Test

    SIGLENT Board Test SDM3065X provides self-test functions, including Key Test, LCD Test, Beeper Test and Chip Test. Operating Steps: 1. Press , then choose【Test/Admin】→【Board Test】 to enter the following interface. Diagram 2- 34 Board Test Interface Table 2- 5 Board Test Function Description...
  • Page 74 SIGLENT Diagram 2- 35 Key Test Interface NOTE:  Before you operate, the shapes on the screen display blue color.  The corresponding area of tested buttons or knobs would display green color.  Press【Done】to exit the test. 3. Test the LCD screen.
  • Page 75 SIGLENT 【Beeper】 one time and the instrument will beep one time. 5. Test the chips. Press【Chip】→【Start】to enter chip test interface, as Diagram 2-37 shows. Diagram 2- 37 Chip Test Interface NOTE:  If the test is passed, the corresponding result shows “pass”.

  • Page 76: Firmware Update

    SIGLENT Firmware Update The software of the Multimeter can be updated directly via USB flash drive, updating current software version to desired software version. Operating Steps: 1. Copy the update file to the USB flash drive. 2. Insert USB flash drive to USB host interface on the front panel of the Multimeter.

  • Page 77: System Setup

    SIGLENT System Setup Press , then select【System Setup】to enter the following interface. Diagram 2- 38 System Setup Interface Table 2- 6 System Settings Menu Description Function Menu Description Language Select the display interface language. Firmware Update Update software version, Screen Set up the screen protection function.
  • Page 78 SIGLENT Diagram 2- 39 System Information SDM3055 Digital Multimeter...

  • Page 79: Acquire

    SIGLENT Acquire Sampling is a process of acquiring and digitizing signal. The optional Trigger methods of the Multimeter include Auto Trigger, Single Trigger and External Trigger. Press to enter the interface shown as the following diagram: Diagram 2- 40 Acquire Interface...

  • Page 80: Auto Trigger

    SIGLENT Auto Trigger Auto Trigger parameters that need to be set up include delay, samples/ trigger and VMC out. Operating Steps: , then select 【Trg Src】 → 【Auto】 or press 1. Press on the front panel directly to enable Auto Trigger.

  • Page 81: Single Trigger

    SIGLENT Single Trigger Single Trigger parameters that need to be set up include delay, samples /trigger and VMC out. Operating Steps: , then select 【Trg Src】→【Single】or press 1. Press on the front panel directly to enable Single Trigger. 2. Set the delay.

  • Page 82: External Trigger

    SIGLENT External Trigger The external trigger signal will be input via EXT TRIG interface on the rear panel. External trigger parameters that need to be set up include delay, samples /trigger, slope and VMC out. Operating Steps: , then select 【Trg Src】→【Ext】enable External Trigger.

  • Page 83: Help System

    SIGLENT Help System SDM3065X provides powerful built-in help system. You can recall help information at any time during using the instrument. You also can get a particularly help for every button on the front panel or menu softkey by using the built-in help system.
  • Page 84 SIGLENT 3. Measuring Capacitance. Get the method to measure temperature. 4. Math Function. Introduce how to use the math function while you are measuring. 5. Dual-display Function. Get the method to use the dual-display function while you are measuring. 6. Saving and Recalling Information.

  • Page 85: Math Function

    SIGLENT Math Function The Multimeter provides five math functions: Statistics, Limits, dBm, dB and Relative. Choose different math functions to meet different measurement demands. Math functions can only be used in DC Voltage, AC Voltage, DC Current, AC Current, Resistance, Frequency, Period and Temperature measurement.
  • Page 86 SIGLENT Explanations:  Math function can only be applicable to the main display.  If measurement function is changed, all math functions will be closed except Statistics. SDM3055 Digital Multimeter...

  • Page 87: Statistics

    SIGLENT Statistics There are many kinds of reading statistic functions, including: Max, Min, Average, Standard deviation and so on. →【Statistics】→【Show】 to enter the interface shown in the Press following diagram. Diagram 2- 43 Statistics Table 2- 10 Statistic Measurement Menu Function Description...
  • Page 88 SIGLENT Statistics Function:  In statistic function, the first reading is usually set to the maximum or minimum value. When getting more readings, current displaying value is always the maximum/minimum reading among all the measured values.  The maximum, minimum, average and reading quantities are stored in volatile memory.

  • Page 89: Limits

    SIGLENT Limits Limits function is available to prompt signals beyond ranges according to the upper and lower parameters. Following are some measurement functions which are able to do limit operation: DC Voltage, AC Voltage, DC Current, AC Current, Resistance, Frequency, Period, Capacitance and Temperature.
  • Page 90 SIGLENT 1. How to Set Limits Select 【High】,【Low】,【Center】or【Span】 and then switch to the needed digit by Left or Right Direction keys and input numerical value by Up and Down Direction keys. 2. Unit The unit of Limits is decided by the current measurement function.

  • Page 91: Dbm

    SIGLENT The dBm function is logarithmic and based on a calculation of power delivered to a reference resistance, relative to 1 mill watt. Besides，this function only applies to AC voltage and DC voltage measurements. →【dB/dBm】→【On】and select【Function dBm】to enter the Press interface shown in the following diagram.
  • Page 92 SIGLENT Each dB measurement is different between the input signal and a stored relative value, with both values converted to dBm. The dB function applies to AC voltage and DC voltage measurements only. → 【dB/dBm On】 and select 【 Function dB】 to enter the interface Press shown in the following diagram.

  • Page 93: Relative Value

    SIGLENT Relative Value Relative value is used for relative measurement. Actual measurement reading is the depression between measurement value and preset value. The Multimeter allows operating for the following parameters: DC Voltage, AC Voltage, Current, Current, Resistance, Frequency, Period, Capacitance and Temperature.

  • Page 94: Display Mode

    SIGLENT Display Mode The Multimeter supports four types of way to view measured data: “Number”, “Bar Meter” ”Trend Chart” and “Histogram”. Number Press to open the menu of display mode and press 【Display】to enter the following interface. “Number” is always the selected mode when the Multimeter is turned on.
  • Page 95 SIGLENT Bar Meter Operating Steps: 1. Press【Bar Meter】to enter Bar Meter display mode. Diagram 2- 48 Bar Meter Display Mode 2. Press【Horizontal Scale】to choose the way to set the vertical scale as Default or Manual mode. Table 2- 15 To Set the Vertical Scale of Bar Meter manually...
  • Page 96 SIGLENT Trend Chart Operating Steps: 1. Press【Trend Chart】to enter Trend Chart display mode. Diagram 2- 49 Trend Chart Display Mode Table 2- 16 Trend Chart Display Mode Function Menu Description Display Currently selected display mode is Trend Chart. Trend Recent Show recent or all readings.
  • Page 97 SIGLENT Diagram 2- 50 Auto Vertical Scale Press【Manual】and you can set the vertical scale manually, as the following diagram shows. Diagram 2- 51 Manual Vertical Scale SDM3055 Digital Multimeter...
  • Page 98 SIGLENT Histogram Operating Steps: 1. Press【Histogram】to enter Histogram display mode. Diagram 2- 52 Histogram Display Mode Table 2- 17 Histogram Display Mode Function Settings Description Menu Display Currently selected display mode is Histogram. Histogram Binning Set Binning as Auto or Manual mode.
  • Page 99 SIGLENT Table 2- 18 Bin Set Function Settings Description Menu Set the number of Bins, 10, 20, 40, 100, 200 or 400 Num.Bins selected. Set the low value of horizontal scale. High Set the high value of horizontal scale. Center Set the center value of horizontal scale.

  • Page 100: Trigger

    SIGLENT Trigger The Multimeter supports Trigger function. Press on the front panel to trigger the Multimeter by Auto or Single mode .Auto trigger is considered as a default when the power is on. Auto Trigger Press on the front panel one time and Auto Trigger will be started to capture continuous readings automatically.

  • Page 101: Hold Measurement Function

    SIGLENT Hold Measurement Function Hold Measurement function provides users with a stable reading on the screen of the front panel. When the test leads are put away, the reading is still held on the screen, which makes users can view measured history data.

  • Page 102: Chapter 3 Measurement Tutorial

    SIGLENT Chapter 3 Measurement Tutorial True RMS AC Measurement The AC measurement of the Multimeter has true RMS response. The power dissipated in a resistor within a time is proportional to the square of the measured true RMS voltage, independent of wave shape. The instrument can accurately measure true RMS voltage or current, as long as the wave shape contains negligible energy above the effective bandwidth.

  • Page 103: Crest Factor Errors (Non-Sinusoidal Inputs)

    SIGLENT Crest Factor Errors (non-sinusoidal inputs) A common misconception is that "since an ac Multimeter is true RMS, its sine wave accuracy specifications apply to all waveforms." Actually, the shape of the input signal can dramatically affect measurement accuracy. A common way to describe signal wave shapes is “crest factor”.

  • Page 104: Loading Errors (Ac Voltage)

    SIGLENT Loading Errors (AC Voltage) In the AC Voltage function, the input of SDM3065X appears as a 1MΩ resistance in parallel with 100pF of capacitance. The test lead that you use to connect signals to the Multimeter will also add additional capacitance and loading.

  • Page 105: Chapter 4 General Troubleshooting

    (3) Check if the capacity of the used USB disk is too large. The Multimeter is recommended not to use USB disks which exceed 8GB. (4) After restarting the instrument, insert the USB disk again to inspect. (5) If you still can‟t use the USB disk properly, please contact SIGLENT. SDM3055 Digital Multimeter...

  • Page 106: Chapter 5 Appendix

     We suggest that the length of USB data wire and LAN cable connected to the instrument should be less than 3m to avoid affecting the product performance.  All the accessories are available by contacting your local SIGLENT office. SDM3055 Digital Multimeter...

  • Page 107: Appendix B: Warranty Summary

    SIGLENT Appendix B: Warranty summary SIGLENT warrants that the products that it manufactures and sells will be free from defects in materials and workmanship for a period of three years from the date of shipment from an authorized SIGLENT distributor. If a product proves defective within the respective period, SIGLENT will provide repair or replacement as described in the complete warranty statement.

  • Page 108: Appendix C: Contact Siglent

    SIGLENT Appendix C: Contact SIGLENT SIGLENT TECHNOLOGIES CO., LTD. Address: 3F, NO.4 building, Antongda Industrial Zone, 3rd Liuxian Road, 68th District, Baoan District, Shenzhen, P.R. China Tel: +86-755-36615186 Fax: +86-755-3591582 Post Code: 518101 E-mail: sales@siglent.com Http://www.siglent.com SDM3055 Digital Multimeter...

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