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Meilhaus Electronic RedHand Scope User Manual

Handheld digital storage oscilloscope & multimeter
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  • Page 1 Meilhaus Electronic GmbH RedHand Scope 60MHz Handheld Digital Storage Oscilloscope & Multimeter User’s Manual WWW.MEILHAUS.COM...
  • Page 2 90 days. This warranty only apply to the original buyer or customers of a MEILHAUS ELECTRONIC authorized dealer, and does not apply to fuses, disposable batteries or to any product which, in MEILHAUS ELECTRONIC’s opinion, has been misused, altered, neglected or damaged by accident or abnormal conditions of operation or handling.
  • Page 3 SERVICES CENTER To locate an authorized services center, visit us on the World Wide Web: http://www.meilhaus.com...

  • Page 4: Table Of Contents

    HandheldDSO&DMM RedHandScope60MHz Contents Table of Contents Chapter Page 1.DECLARATION OF CONFORMITY··················································1 1.1 Declaration of Conformity ······················································································1 1.2 Open the Oscilloscope Parts Box ····················· Fehler! Textmarke nicht definiert. 2.SAFETY INFORMATION······································································2 2.1 Safety Terms and Symbols ······················································································2 ········2 2.1.1 Specific Warning and Caution Terms that Appear throughout the Manual ···························································································2 2.1.2 Terms Used on the Product ·····················································································2...
  • Page 5 HandheldDSO&DMM RedHandScope60MHz Contents 5.1 About this Chapter ·······································································································7 5.2 Power-Up the Oscilloscope ······················································································7 5.3 Oscilloscope Operation Window ·········································································8 5.4 Navigating a Menu ·····································································································10 5.5 Manually Setting the Vertical System, Horizontal System and Trigger Position ···················································································································10 5.6 Resetting the Oscilloscope ······················································································14 5.7 Input Connections ·······································································································15 5.8 Displaying an Unknown Signal with Auto Set...
  • Page 6 HandheldDSO&DMM RedHandScope60MHz Contents 5.16 Reversing the Polarity of the Displayed Waveform ····························21 5.17 Using Waveform Mathematics Functions ·················································22 6.USING THE MULTIMETER·······························································24 6.1 About this Chapter ·····································································································24 6.2 Making Meter Connections ··················································································24 6.3 Multimeter Operation Window ··········································································24 6.4 Making Multimeter Measurements ·································································25 ·····················································································26 6.4.1 Measuring Resistance Values...
  • Page 7 HandheldDSO&DMM RedHandScope60MHz Contents ················································································３９ 7.2.1 Setting the Channel Coupling ························································４０ 7.2.2 Make Open and Close Settings on Channel ·······················································································４０ 7.2.3 Adjusting the Probe Scale ················································································４０ 7.2.4 Setting of Inverted Waveform 7.3 Make the Math Function Menu Setting ····················································４１ 7.4 Setting the Trigger System ·················································································４２...
  • Page 8 HandheldDSO&DMM RedHandScope60MHz Contents 7.12 System State Menu ·······························································································５３ 7.13 Setting of Time Base Mode ·············································································５４ 7.14 Data Transmission ·······························································································５５ 8.TROUBLE SHOOTING········································································57 9.APPENDIX ················· FEHLER! TEXTMARKE NICHT DEFINIERT. 9.1 Appendix a Specifications ······················································································59 ···················································································································59 9.1.1 Oscilloscope ·······························································································································61 9.1.2 Meter ·································································································63 9.1.3 General Specifications 9.2 Appendix B: Maintenance and Cleaning ······················································64 ·································································································64...
  • Page 9 1-Declaration of Conformity 1. Declaration of Conformity 1.1 Declaration of Conformity REDHAND SCOPE 60MHZ Handheld Digital Storage Oscilloscope & Multimeter Statement of Conformity Base on the result using appropriate standards, the product is in conformity with Electromagnetic Compatibility Directive 89/336/EEC...

  • Page 10: Declaration Of Conformity

    RedHandScope60MHz Handheld DSO & DMM 1-Declaration of Conformity 1.2 The following Parts are included in the Oscilloscope box. Refer to figure 1: Description Standard Optional ● Scope meter Test Tool ● Battery Charger ● two Oscilloscope Probes (grey) ● a pair of Test Leads of Multimeter (black and red) ●...

  • Page 11: Safety Information

    RedHandScope60MHz Handheld DSO & DMM 3-Performing the General Inspection 2. Safety Information In order to ensure the correct using and the best efficient service, please carefully read this user’s manual. 2.1 Safety Terms and Symbols 2.1.1 Specific Warning and Caution Terms that Appear throughout the Manual “Warning”...

  • Page 12: General Safety Information

    ● Use only insulated voltage probes, test leads and adapter supplied with the test tool, or indicated by MEILHAUS ELECTRONIC as suitable for the Oscilloscope & Multimeter. ● Before use, inspect voltage probes, test leads and accessories for mechanical damage and replace when damaged.
  • Page 13 RedHandScope60MHz Handheld DSO & DMM 3-Performing the General Inspection when measuring in a CAT Ⅱ environment. ● Do not apply input voltages above the rating of the instrument Use caution when using 1:1 test leads because the probe tip voltage will be directly transmitted to the Oscilloscope &...

  • Page 14: Performing The General Inspection

    3. Performing the General Inspection 3.1 Performing the General Inspection When you have got a new RedHand Scope series oscilloscope, it is suggested that you should perform a general inspection on the instrument according to the following steps. 3.3.1 Check whether there is any Damage on it Due to Transportation If the packing boxes or foam cushions are found in serous damage, keep them in a proper place till the complete instrument and accessories have passed the electrical and mechanical tests.

  • Page 15: Input Connections

    RedHandScope60MHz Handheld DSO & DMM 4-Input Connections 4. Input Connections 4.1 Input Connections Description: 1. The power adapter is supplied for AC power supply and battery recharging. 2. Multimeter test lead. 3. Multimeter input jacks, including three circular banana jacks and tow square jacks. The three circular jacks are used for voltage, current and resistance inputs, while the two square jacks are used for capacitance inputs.

  • Page 16: Using The Scope

    RedHandScope60MHz Handheld DSO & DMM 4-Input Connections include: Voltage Unit Scale of Channel 1 (CH1 VOL); Voltage Unit Scale of Channel 2 (CH2 VOL); Primary Time base (TIME BASE), zero point position of channel 1(CH1 ZERO), zero point position of channel 2(CH2 ZERO), trigger horizontal position (TIME) and trigger level position (TRIG).

  • Page 17: Oscilloscope Operation Window

    RedHandScope60MHz Handheld DSO & DMM 5-Using the Scope may still work with built-in Li-ion battery even without AC power supply) Turn the oscilloscope on by pressing down the power on/off key POW. The instrument then performs self checking after power on. A greeting window and a sentence “press any key to continue……”...
  • Page 18 RedHandScope60MHz Handheld DSO & DMM 5-Using the Scope Auto: The oscilloscope is working in the automatic mode and displaying the waveform under the non-trigger state. Trig’d: The oscilloscope has detected a trigger and collecting the information generated after the trigger. Ready: All pre-triggered data have been captured and the oscilloscope has been ready to receive trigger signals.

  • Page 19: Navigating A Menu

    RedHandScope60MHz Handheld DSO & DMM 5-Using the Scope 5.4 Navigating a Menu The following example shows how to use the tool’s menus to select a function, as shown in the following figure. Press the MENU key to display the Function Menu on the right of the screen and the corresponding optional settings on the bottom.
  • Page 20 RedHandScope60MHz Handheld DSO & DMM 5-Using the Scope ◄/► – Time Base ▲/▼ – CH1 Vol Refer to figure 6 figure 6: Voltage Unit Scale of Channel 1 ▲ ▼ Press the key OSC or OSC to adjust the vertical scale of Channel 1 and press OSC ◄...
  • Page 21 RedHandScope60MHz Handheld DSO & DMM 5-Using the Scope figure 7: Voltage Unit Scale of Channel 2 ▲ ▼ Press the OSC or OSC key to adjust the vertical scale of Channel 2 and press the ◄ ► or OSC key to adjust the horizontal time scale. Press the OSC OPTION key one more time, and the following display is visible at the bottom left side of the screen, shown as the following figure.
  • Page 22 RedHandScope60MHz Handheld DSO & DMM 5-Using the Scope ▲ ▼ Press OSC or OSC key to adjust the zero position of Channel 1 in vertical direction ◄ ► and press OSC or OSC key to adjust the horizontal position. Again, press OSC OPTION key and the following appears at the bottom left side of the screen, shown as the following figure.

  • Page 23: Resetting The Oscilloscope

    RedHandScope60MHz Handheld DSO & DMM 5-Using the Scope figure 10: Trigger Level Position ▲ ▼ Press the OSC or OSC key to adjust the trigger position of Channel 2 and press ◄ ► or OSC key to adjust the horizontal position. Press the OSC OPTION key again and return back to step 1.

  • Page 24: Input Connections

    RedHandScope60MHz Handheld DSO & DMM 5-Using the Scope at the bottom of the screen. 3. Press F1 key to select the factory settings. The oscilloscope is set to be the factory settings. Refer to figure 11 figure 11: Reset the Oscilloscope 5.7 Input Connections Refer t figure 2.

  • Page 25: Automatic Zero-Returning Of Trigger Horizontal Position And

    RedHandScope60MHz Handheld DSO & DMM 5-Using the Scope 5.9 Automatic Zero-returning of Trigger Horizontal Position and Trigger Level Position When we adjust the trigger horizontal position and trigger level position to be maximal to make it off the screen center remotely, then we perform the following steps to make trigger horizontal position and trigger level position return to zero automatically.

  • Page 26: Freezing The Screen

    RedHandScope60MHz Handheld DSO & DMM 5-Using the Scope figure 12: Automatic Scope Measurements 5.11 Freezing the Screen You can freeze the screen (all readings and waveforms) Press the RUN/STOP key to freeze the screen and STOP appears at top right side of the screen.

  • Page 27: Using Average For Smoothing Waveforms

    RedHandScope60MHz Handheld DSO & DMM 5-Using the Scope 5.12 Using Average for Smoothing Waveforms To smooth the waveform, do the following: Press the MENU key and the function menu appears on the right side of the screen. ▲ ▼ Press MENU or MENU key to select ACQU mode, with four items selectable displayed at the bottom of the screen.

  • Page 28: Using Peak Detection To Display Glitches

    RedHandScope60MHz Handheld DSO & DMM 5-Using the Scope figure 15: Persistence to Observe Dynamic Signals 5.14 Using Peak Detection to Display Glitches You can use this function to display events (glitches or other asynchronous waveforms) of 50 ns or wider. Press MENU key and the function menu appears at the right side of the screen.
  • Page 29 RedHandScope60MHz Handheld DSO & DMM 5-Using the Scope figure 16: Peak Detection Term interpretation Collecting mode: The oscilloscope transforms the collected analog data into a digital form after they are gathered in the following three different modes, such as sampling, peak value detection and averaging values.

  • Page 30: Selecting Ac-Coupling

    RedHandScope60MHz Handheld DSO & DMM 5-Using the Scope 5.15 Selecting AC-coupling After a reset, the Oscilloscope is dc-coupled so that ac and dc voltages appear on the screen, Use ac-coupling when you wish to observe a small ac signal that rides on a dc signal. To select ac-coupling, do the following: Press MENU key and the function menu appear at the right side of the screen.

  • Page 31: Using Waveform Mathematics Functions

    RedHandScope60MHz Handheld DSO & DMM 5-Using the Scope figure 18: Inverted On 5.17 Using Waveform Mathematics Functions When adding (CH1 + CH2), subtracting (CH1 – CH2, CH2 – CH1), multiplying (CH1 * CH2) or dividing （CH1 / CH2） the input waveforms of CHI and CH2, the Oscilloscope will display the mathematical result waveform M and the input waveforms of CH1 and CH2 on the screen.
  • Page 32 RedHandScope60MHz Handheld DSO & DMM 5-Using the Scope ▲/▼ CHM Vol ▲ ▼ Press the OSC or OSC key to adjust the displayed amplitude of the calculated waveform M. Refer to figure 19 figure 19: Waveform Mathematics...

  • Page 33: Using The Multimeter

    RedHandScope60MHz Handheld DSO & DMM 6-Using the Multimeter 6. Using the Multimeter 6.1 About this Chapter This chapter provides a step-by-step introduction to the multi-meter functions of the test tool hereafter. The introduction gives basic examples to show how to use the menus and perform basic operations.

  • Page 34: Making Multimeter Measurements

    RedHandScope60MHz Handheld DSO & DMM 6-Using the Multimeter Manual/Auto range indictors, among which the MANAL means measuring range in manual operation mode and Auto refers to the measuring range in automatic operation mode. Measurement mode indicators: DCV: Direct voltage measurement ACV: Alternating voltage measurement DCA: Direct current measurement ACA: Alternating current measurement...

  • Page 35: Measuring Resistance Values

    RedHandScope60MHz Handheld DSO & DMM 6-Using the Multimeter 6.4.1 Measuring Resistance Values To measure a resistance, do the following: Press the R key and R appears at the top of the screen. Insert the black lead into the COM banana jack input and the red lead into the V/Ù banana jack input.

  • Page 36: On-Off Test

    RedHandScope60MHz Handheld DSO & DMM 6-Using the Multimeter Refer to figure 22 figure 22: Diode Measurement 6.4.3 On-off Test To perform an On-off test, do the following: Press the R key and R appears on the top of the screen. Press the AUTO SET key till the following is shown on the screen.

  • Page 37: Making A Capacitance Measurement

    RedHandScope60MHz Handheld DSO & DMM 6-Using the Multimeter figure 23: On-off Test 6.4.4 Making a Capacitance Measurement To measure a capacitance, do the following: Press the R key and R appears on the top of the screen Press the AUTO SET key till C appears at the top of the screen. Insert the measured capacitance into the quadratic jack and the screen shows the capacitance reading.

  • Page 38: Making A Dc Voltage Measurement

    RedHandScope60MHz Handheld DSO & DMM 6-Using the Multimeter figure 24: Capacitance Measurement 6.4.5 Making a DC Voltage Measurement To measure a DC voltage, do the following: Press the V key and DCV appears at the top of the screen. Insert the black lead into the COM banana jack input and the red lead into the V/Ù banana jack input.

  • Page 39: Making A Ac Voltage Measurement

    RedHandScope60MHz Handheld DSO & DMM 6-Using the Multimeter figure 25: DC Voltage Measurement 6.4.6 Making a AC Voltage Measurement To measure the AC voltage, do the following: Press the V key and DCV appears at the top of the screen. Press the AUTO SET key and ACV appears at the top of the screen.

  • Page 40: Making A Dc Current Measurement

    RedHandScope60MHz Handheld DSO & DMM 6-Using the Multimeter figure 26: AC Voltage Measurement 6.4.7 Making a DC Current Measurement To measure a DC current which is less than 400 mA , do the following: Press the A key and DCA appears at the top of the screen. The unit on the main reading screen is mA.
  • Page 41 RedHandScope60MHz Handheld DSO & DMM 6-Using the Multimeter figure 27: DC Current Measurement for 400 mA To measure a DC current which is larger than 400 mA, do the following: Press the A key and DCA appears at the top of the screen. The unit on the main reading screen is mA..

  • Page 42: Making An Ac Current Measurement

    RedHandScope60MHz Handheld DSO & DMM 6-Using the Multimeter figure 28: DC Current Measurement for 20A 6.4.8 Making an AC Current Measurement To measure an AC current which is less than 400 mA, do the following: Press the A key and DCA appears at the top of the screen. The unit on the main reading screen is mA.
  • Page 43 RedHandScope60MHz Handheld DSO & DMM 6-Using the Multimeter figure 29: AC Current Measurement for 400 mA To measure an AC current which is larger than 400 mA, do the following: Press the AUTO SET key once and ACA is visible at the top of the screen. Press F5 to select 20A measure, the unit of main reading window is A.

  • Page 44: Freezing The Readings

    RedHandScope60MHz Handheld DSO & DMM 6-Using the Multimeter figure 30: AC Current Measurement for 20A 6.5 Freezing the Readings You can freeze the displayed readings at any time. Press the RUN /STOP key to freeze the screen and STOP will be displayed at the top right of the screen.

  • Page 45: Taking A Relative Measurement

    RedHandScope60MHz Handheld DSO & DMM 6-Using the Multimeter 6.6 Taking a Relative Measurement A currently measured result relative to the defined reference value is displayed in a relative measurement. The following example shows how to take a relative measurement. At first, it is required to acquire a reference value.
  • Page 46 RedHandScope60MHz Handheld DSO & DMM 6-Using the Multimeter Press F3 key and AUTO is displayed on the top left side of the screen to switch back to the automatic range mode. Refer to figure 33 Automatic/Manual Range Adjustment figure 33: Attention: capacitance measurement without manual range mode.

  • Page 47: Advanced Function Of Oscilloscope

    RedHand Scope60MHz Handheld DSO & DMM 7-Advanced Function of Oscilloscope 7. Advanced Function of Oscilloscope 7.1 About this Chapter This chapter will detail the oscilloscope function of the test tool. 7.2 Setting the Vertical CH1 and CH2 Each channel has its own independent vertical menu and each item can be set respectively based on the specific channel.

  • Page 48: Setting The Channel Coupling

    RedHand Scope60MHz Handheld DSO & DMM 7-Advanced Function of Oscilloscope The following Table describes the Vertical Channel menu: Function Description Setting menu The dc component in the input signal is blocked.. Coupling The ac and dc components of the input signal are allowed. Close Close the channel.

  • Page 49: Make Open And Close Settings On Channel

    RedHand Scope60MHz Handheld DSO & DMM 7-Advanced Function of Oscilloscope figure 36: DC Coupling 7.2.2 Make Open and Close Settings on Channel Take CH1 as an example. Press F2 Channel key first, and then press Close to make a Close setting on CH1. Press F2 Channel key first, and then press Open to make an Open setting on CH1.

  • Page 50: Make The Math Function Menu Setting

    RedHand Scope60MHz Handheld DSO & DMM 7-Advanced Function of Oscilloscope Press F4 Invert to start Invert; again press F4 Invert to close Invert. 7.3 Make the Math Function Menu Setting The MATH functions in showing the result of adding, subtracting, multiplying or dividing calculation on CH1 and CH2 channel waveforms.

  • Page 51: Setting The Trigger System

    RedHand Scope60MHz Handheld DSO & DMM 7-Advanced Function of Oscilloscope figure 37: Waveform Mathematics 7.4 Setting the Trigger System The Trigger defines the time when the acquisition of data and display of waveform start. If it is set correctly, the trigger can turn an unstable display into a significant waveform. When starting the acquisition of data, the oscilloscope collects sufficient data to draw the waveform at the left side of the triggering point.

  • Page 52: Triggering Control

    RedHand Scope60MHz Handheld DSO & DMM 7-Advanced Function of Oscilloscope figure 38: Edge Trigger 7.5 Triggering Control There are two triggering modes including Edge triggering and Video triggering. Each trigger mode is set by different function menu. Edge triggering: It occurs when the trigger input passes through a given level along the specified direction.

  • Page 53: Video Triggering

    RedHand Scope60MHz Handheld DSO & DMM 7-Advanced Function of Oscilloscope triggering condition is satisfied. Single shot The sampling is performed on a waveform when one trigger is detected, then stop sampling. . Coupling With this mode selected, the DC component is prevented from passing-though.
  • Page 54 RedHand Scope60MHz Handheld DSO & DMM 7-Advanced Function of Oscilloscope figure 40: Video Line trigger The Video triggering menu is described in the following table. Function Settings Description menu Polarity Normal Applicable to the video signal in which the black level is of low level.

  • Page 55: Acquiring Mode Setting

    RedHand Scope60MHz Handheld DSO & DMM 7-Advanced Function of Oscilloscope 7.6 Acquiring Mode Setting The Acquiring Mode menu is described in the list shown as below. Function menu Settings Description Sampling Normal sampling mode. Peak Detection Used to detect the jamming glitch and reduce the possible blurring.

  • Page 56: Persistence

    RedHand Scope60MHz Handheld DSO & DMM 7-Advanced Function of Oscilloscope figure 41: Dot Style figure 42: Vector Style 7.7.2 Persistence With Persistence function selected, the displayed saved original data gradually decay in color and the new data are bright in color; with infinite persistence mode selected, the recorded points will be kept on the screen till the controlled value is changed.

  • Page 57: Waveform Saving Setups

    RedHand Scope60MHz Handheld DSO & DMM 7-Advanced Function of Oscilloscope the horizontal axis and CH2 is on the vertical axis; when the oscilloscope is under the sampling mode in which no trigger is found, the data appear in light spots. Operations for various control keys are shown as below: ■...

  • Page 58: Function Setting Menu

    RedHand Scope60MHz Handheld DSO & DMM 7-Advanced Function of Oscilloscope ▲ ▼ Press the MENU or MENU key to select the Waveform Saving. Four items selectable are displayed at the bottom of the screen. Press the F1 key to select the signal source CH1. Press the F2 key to select the address A.

  • Page 59: Making Automatic Measurements

    RedHand Scope60MHz Handheld DSO & DMM 7-Advanced Function of Oscilloscope Celsius degrees, the self-correcting program should be performed to gain the maximum accuracy. Before the self-correcting program is performed, the probe or lead should be disconnected with the input connector, then, select the F2 key Self-correcting item. After confirming that everything is ready, press the F2 key “Self-correcting”...

  • Page 60: Setting The Cursor Measurements

    RedHand Scope60MHz Handheld DSO & DMM 7-Advanced Function of Oscilloscope figure 44: Automatic Measurements 7.11 Setting the Cursor Measurements This oscilloscope allows you to make manual cursor measurements on time and voltage. The signal sources include Channel 1(CH1), Channel 2 (CH2), MATH, storage address A and storage address B.
  • Page 61 RedHand Scope60MHz Handheld DSO & DMM 7-Advanced Function of Oscilloscope up and down while the measured voltage value of V1 relative to the zero position of CH1 appears on the screen. ▲/▼ Press and hold the OSC OPTION key till CURSOR V2 appears on the screen.

  • Page 62: System State Menu

    RedHand Scope60MHz Handheld DSO & DMM 7-Advanced Function of Oscilloscope frequencies of T1 and T2. Refer to figure 46 figure 46: Use the Cursor for a Time Measurement 7.12 System State Menu The system state menu is used to display information about the present horizontal system, vertical system, trigger system and others.

  • Page 63: Setting Of Time Base Mode

    RedHand Scope60MHz Handheld DSO & DMM 7-Advanced Function of Oscilloscope figure 47: System State 7.13 Setting of Time Base Mode The time base mode menu is explained as the following table. Function menu Setting Explanation Main time base Horizontal main time base is used to wave display Window setting Use two cursors to define a window area Window extension...

  • Page 64: Data Transmission

    RedHand Scope60MHz Handheld DSO & DMM 7-Advanced Function of Oscilloscope figure 48: Window Setting figure 49: Window Extension 7.14 Data Transmission For the operation of data transmission, please execute the following steps: Press MENU key, display the function menu on the right side of the screen. ▲...
  • Page 65 RedHandScope60MHz Handheld DSO & DMM 7-Advanced Function of Oscilloscope Open the MEILHAUS ELECTRONIC software that had been installed completely. Setting the parameter under the use’s manual, and then starts data transmission.

  • Page 66: Trouble Shooting

    To solve the problem, charge up the battery and supply the oscilloscope with power by using the battery charger. Only switch on the oscilloscope after charging for 15 minutes. If the oscilloscope still can not boot up, please contact MEILHAUS ELECTRONIC for service.
  • Page 67 RedHandScope60MHz Handheld DSO & DMM 8-Trouble Shooting 7. When the average sampling in the sampling mode or a longer display time is selected in the display mode under the oscilloscope mode, the display speed is slow. It is normal in the above case.

  • Page 68: Appendix A Specifications

    Only if another instruction is provided, are all technical specifications applicable to the probe with the 10X attenuation switch setting and the RedHand Scope series digital type oscilloscope. In order to be up to these specifications, the oscilloscope should meet the following requirement.
  • Page 69 RedHandScope60MHz HandheldDSO&DMM 9-Appendix 5ns/div～5s/div, stepping in the “1-2-5” mode. Scanning speed range（S/div） Time interval ( △ T)measurement Single: ±(1 sampling interval time+100ppm×reading+0.6ns) >average 16 : ± (1 sampling interval time +100ppm × accuracy（DC～50M） reading+0.4ns) Vertical With the resolution of 8 bits, make sampling on both Analog digital converter（A/D）...

  • Page 70: Meter

    RedHandScope60MHz HandheldDSO&DMM 9-Appendix ±0.3 divisions Triggering level accuracy (typical) which is applicable to the signal with rise and fall time equal to or longer than 20ns Trigger displacement 655 divisions for pre-triggering and 4 divisions for post- triggering Make a 50% level setting Operation with the input signal frequency equal to or larger than (Typical).
  • Page 71 RedHandScope60MHz HandheldDSO&DMM 9-Appendix Range Accuracy Resolution ±1%±1 digit 400.0mv 100uV 4.000V 40.00V 10mV 400.0V 100mV Voltage (VAC) Input Impedance: 10MÙ. Max. Input Voltage: 750V(AC, virtual value) Frequency range: from 40Hz to 400Hz. Display: Virtual value of the sine wave Range Accuracy Resolution ±1%±3 digits...

  • Page 72: General Specifications

    RedHandScope60MHz HandheldDSO&DMM 9-Appendix 4.000MÙ 1KÙ ±1.5%±3 digit 40.00MÙ 10KÙ Capacitance Range Accuracy Resolution 51.20nF ±3%±3 digits 10pF 512.0nF 100pF 5.120uF 51.20uF 10nF 100uF 100nF Diode Voltage reading: 0 V ～1.5 V. On-off Test You can a beep sound when the on-resistance is less than 30Ù. 9.1.3 General Specifications Basic parameter Mechanical dimension...

  • Page 73: Appendix B: Maintenance And Cleaning

    RedHandScope60MHz HandheldDSO&DMM 9-Appendix 0 to 50 °C(32 to 122 °F) Used battery 0 to 40 °C(32 to 104 °F) Power adapter -20 to +60 °C(-4 to +140 °F) Storage. Temperature Operation: 0 to 10 °C(32 to 50 °F) no condensation 10 to 30 °C(50 to 86 °F) 95 % 30 to 40 °C(86 to 104 °F)

  • Page 74: Replacing The Lithium Battery Unit

    RedHandScope60MHz HandheldDSO&DMM 9-Appendix electric quantity, it must be charged for 4 hours (the test tool must be turned off during charging). The battery can supply power for 4 hours after being charged completely. When supplying power by using the battery, a battery indicator is displayed on the top of the screen to show the consumption condition of electric quantity.

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