Bk-precision 2552-2559 - Manual Instrukcja Użytkownika

Model: 2552, 2553, 2554, 2555, 2556, 2557, 2558, 2559 4CH/2CH Digital Storage Oscilloscopes USER MANUAL

10 Chapter 1 Introduction The 2550 series digital storage oscilloscopes (DSO) are portable benchtop instruments used for making measurements of sig

100 Figure 59 - Set Factory Default Screen Save/Recall Waveform Save Waveforms to Device Table 45 - Save Waveform to Device Function Menu Opti

101 Figure 60 - Save Waveform Menu Screen To save waveforms in internal memory, follow the steps below: 1. Input a sine signal to channel 1 and pr

102 Save Waveforms to USB Flash Drive Table 46 - Save Waveforms to USB Flash Drive Function Menu Option Setup Description Type Waveforms Menu for

103 there will be a message “Save data success” displayed on the screen). Now the waveform data have been saved to the USB flash drive. Recall

104 Figure 62 - Save Picture Screen To save waveform images to USB flash drive, follow the steps below: 1. Select the screen image that you want.

105 .CSV file. Data Depth Displayed Maximum Set to store displayed waveform data to .CSV file. Set to store maximum waveform data to .CSV file. Para

106 Note: The maximum number of data points of a waveform that can be saved as a .CSV file into USB drive is ~24576 pts (depending on the timebase s

107 Utility System Press the UTILITY button from the front panel to access utility options. Table 49 - Utility System Function Menu 1 Option Sett

108 Figure 64 - Utility Menu Screen 1 Table 50 - Utility System Function Menu 2 Option Setting Description Do Self Cal Auto self calibration. Do

109 Figure 65 - Utility Menu Screen 2 Table 51 - Utility System Function Menu 3 Option Setting Description Update firmware Update the firmware

11 Panel and Display Information Front Panel The following contents are a brief introduction for the front panel function, which is useful to becom

110 Recorder Record Goes into the “recorder” menu to start waveform record. Replay Playback recordings Option Recording options Date/Time Sets the d

111 System Status Press the “System Status” option button of the Utility Menu to view the oscilloscope’s hardware and software configuration. Figur

112 Figure 67 - Language Selection Screen Self Calibration Self Calibration procedure can optimize the signal path for optimal measurement resul

113 Figure 68 - Calibration Screen Self Test Press “UTILITY” and select “Do Self Test” Table 54 - Self Test Menu Screen Test Select “Screen Te

114 Figure 69- Screen Test Start Screen Keyboard Test Select “Keyboard Test” to enter the key test interface. The on-screen shapes represent the

115 Figure 70 - Key Test Screen LED Test Select “LED Test” to test the LED backlights on some of the front panel buttons. The screen will display

116 Figure 71 - LED Test Screen Updating Firmware • Using USB flash drive to update firmware The firmware of the oscilloscope can be updated di

117 WARNING: Do NOT turn off the power while the oscilloscope is updating. Otherwise, the firmware will be corrupted, and the instrument may not be

118 Figure 72 - Pass/Fail Screen 1 Table 56 - Pass/Fail Function Menu 2 Option Setting Description Output Pass Fail Output signal when pass condit

119 Figure 73 - Pass/Fail Screen 2 Table 57 - Mask Setting Function Menu 1 Option Setting Description X Mask xdiv Turn the “Universal” knob to

12 1. Power On/Off button 2. USB Host port (for storage to USB flash drives) 3. LCD display 4. 1 kHz probe compensation terminal 5. Menu On/Off

120 Figure 74 - Mask Menu Screen 1 Table 58 - Mask Setting Function Menu 2 Option Setting Description Save Store created mask setting. Load Recal

121 RUN Pass/Fail test, please follow the steps below: 1. Press UTILITY button to enter the “Utility menu”. 2. Press the “Next Page Page1/4” optio

122 Mode Record Play Back Storage Off Set Record function menu. Set Play Back function menu. Set Storage function menu. Turn off waveform recorder me

123 To record waveforms, follow these steps: 1. Press the UTILITY button to enter “Utility menu”. 2. Press the “Next Page” option button to enter

124 Figure 77 - Record Menu Screen 2 Table 61 - Waveform Playback Function Menu 2 Option Setting Description Start Frame Set start frame. Curr_F

125 Figure 78 - Record Menu Screen 3 To play back current record waveforms, follow these steps: 1. Press UTILITY button to enter “Utility menu”. 2

126 Record This mode allows for gap-free recording of waveform data and can be enabled in SCAN MODE only (refer to “Horizontal Control Knob section”

127 used to store the recording. Store Mode Memory USB key Stores recording to internal memory. Stores recording to external USB flash drive. Return

128 Split Display split screen of the waveform recording and channel recalling, CH1 is displayed in the upper half-screen, and CH2 is displayed

129 Recorder Operation step： 1. Press the UTILITY button to enter “Utility” menu. 2. Press the “Next Page” option button to enter the fourth pag

13 1. Rubber feet 2. Kensington security slot 3. Pass/Fail BNC output 4. LAN interface 5. USB device port (for remote communication) 6. Rear U

130 Figure 82 - Help Menu Screen

131 Chapter 3 Remote Control The 2550 series digital storage oscilloscope comes with Easyscope application software which provides most of the cont

132 Chapter 4 Application Examples This section presents a series of application examples. These simple examples highlight the features of the osc

133 Taking Simple Measurements Observe an unknown signal in a circuit, display the signal quickly and measure the frequency and peak-to-peak amplitu

134 5. Press the “Type” option button to select “Vpp”. The corresponding icon and measure value will display on the third option area. Measuring

135 Measuring Ring Amplitude To measure the amplitude, follow these steps: 1. Press the “CURSORS” button to see the Cursor Menu. 2. Press the “Mod

136 The following steps show you how to use the oscilloscope to capture a single event. 1. Set the Probe option attenuation to 10X and set the swit

137 Separating the Signal from Noise To reduce random noise in the oscilloscope display, follow these steps: 1) Press the “ACQUIRE” button to displ

138 3. Press the “Sync” option button and select “Line Num” and turn the universal knob to set a specific line number. 4. Press the “Standard” opti

139 DCAB Sin θ=A/B or C/D where θ=phase shift (in degrees) between the two signals from the formula above, you could get: θ=±arcsine (A/B) or

14 • Trig’d - The oscilloscope has seen a trigger and is acquiring the post-trigger data. • Stop - The oscilloscope has stopped acquiring waveform

140 6. Press the “Operation” option button and select “－”. 7. Press the “CH1－CH2” option button to display a new waveform that is the difference be

141 Chapter 5 Message Prompts and Troubleshooting Message Prompts • Trig level at limit! : Prompts you that the trigger Level is at a limit when

142 • Ready Data Success! : Read setup data or waveform data from the internal memory of the oscilloscope or USB flash was successful. • USB Flash

143 “edge” trigger mode. The video signal should use the “Video” Trigger mode. The signal would display steadily only when using matching trigger mo

144 Chapter 6 Specifications • All specifications apply to measurements with a 10X probe. To verify that the oscilloscope meets specifications, the

145 factors 2552/2553 2554/2555 2556/2557 2558/2559 Vertical System Vertical Sensitivity 2 mV/div – 10 V/div (1-2-5 order) Channel voltage offset r

146 Ch to Ch Skew (both channels in same V/div setting) <2ns (Equivalent to 2 minor divisions in smallest t/div) <1ns Math operation +, -, *,

147 details on the number of data points that can be saved to a CSV file can be found in the storage chapter of this manual. The number of data poi

148 Slope Trigger (>, <, =) Positive slope, (>, <, =) Negative slope Time: 20 ns - 10 s Alternate Trigger CH1 trigger type: Edge, Pulse,

149 Hardware Frequency Counter Reading resolution 6 digits Accuracy ± 0.01% Range DC Couple, 10 Hz to Max. BW Signal Types Satisfying all trigg

15 13. Shows the icon for the trigger type 14. Displays real time and date 15. Shows the trigger voltage 16. Trigger signal frequency Package Co

150 Mechanical Dimensions (WxDxH) 14.1 x 6.14 x 4.65 inches (358 x 156 x 118 mm) Weight 4CH models: Approx. 9.9 lbs (4.5 kg) 2CH models: Approx. 9.5

151 Certification CE Compliant CE Declaration of Conformity The oscilloscope meets the requirements of 2006/95/EC Low Voltage Directive and 2004/1

152 Appendix A Default Setup Menu or system Options, knobs or buttons Default setup CH1,CH2 Coupling DC BW Limit Off Volts/div Coarse Probe 1X Inv

153 MEASURE Source CH1 Type average ACQUIRE three mode options Sampling Averages 16 Sampling mode Real Time DISPLAY Type Vectors Persist off Gird In

154 LEVEL 0.00V TRIGGER (pulse) Type pulse Source CH1 When = Set Pulse Width 1.00ms Mode Auto Coupling DC TRIGGER (Video) Type Video Source CH1 Polar

155 Appendix B Index - Width, 92 + Width, 91 Alternative Trigger, 62 Auto set, 25 Blackman, 42 Counter, 108 Coupling, 29 Creating Folders and Files,

156 Appendix C Disabling Auto Function The 2550 series has the ability to disable the Auto button that would automatically setup the scope to displ

157 SERVICE INFORMATION Warranty Service: Please go the support and service section on our website www.bkprecision.com to obtain a RMA #. Return the

158 LIMITED THREE-YEAR WARRANTY B&K Precision Corp. warrants to the original purchaser that its products and the component parts thereof, will b

22820 Savi Ranch Parkway Yorba Linda, CA 92887 www.bkprecision.com © 2012 B&K Precision Corp. Printed in China V10

16 Figure 6 - Scope Layout 2. Set the switch to 1X on the probe and connect the probe to channel 1 on the oscilloscope. To do this, align the slot

17 Figure 8 - 3Vpp Square Wave 4. Press “CH1” two times to cancel the channel 1, Press“CH2” to change screen into channel 2, reset the channel 2 as

18 Probe Attenuation Probes are available with various attenuation factors which affect the vertical scale of the signal. The Probe Check

19 Probe Compensation As an alternative method to Probe Check, you can manually perform this adjustment to match your probe to the input channel.

20 Chapter 2 Functions and Operating Descriptions This chapter will cover all the functions and operations of the oscilloscope: • Menu and control

21 Menu and Control Button Channel buttons (CH1, CH2, CH3, CH4): Press a channel button (CH1, CH2, CH3, or CH4) to turn that channel ON or OFF

22 HORI MENU: Press to display the Horizontal menu. You can use the Horizontal menu to display the waveform and to zoom a segment of a waveform. TRIG

23 UTILITY: Press to open the Utility menu. You can use the Utility menu to configure oscilloscope features, such as sound, language, counter, etc. Y

24 Auto Setup The 2550 series Digital Storage Oscilloscopes have an Auto Setup function that identifies the waveform types and automatically ad

25 Table 1 - Autoset Menu Option Description (Multi-cycle sine) Auto set the screen and display multi-cycle signal. (Single-cycle sine) Set the sc

26 Note: The AUTO button can be disabled. Please see “Appendix C Disabling Auto Function” for details. Default Setup The oscilloscope is set u

27 Universal Knob You can use the Universal knob with many functions, such as adjusting the hold off time, moving cursors, setting

28 Vertical System The vertical control could be used for displaying waveform, rectify scale and position. Figure 15

29 Channel Function Menu Table 3 - Channel Function Menu Table 4 - Channel Function Menu 2 Option Setting Description Coupling DC AC GND DC pass

3 Safety Summary The following safety precautions apply to both operating and maintenance personnel and must be observed during all phases of operati

30 Table 5 - Channel Function Menu 3 Filter Press this button to enter the “Digital Filter menu”. Next Page Page 2/3 Press this button to ente

31 • “GND” Coupling: Use GND coupling to display a zero-volt waveform. Internally, the channel input is connected to a zero-volt reference level.

32 Setting Up Channels Each channel has its own separate Menu. The items are set up separately according to each channel. 1. Setup Channel Couplin

33 Figure 17 - Bandwidth Limit 3. Volts/Div Settings Vertical scale adjust have Coarse and Fine modes, Vertical sensitivity range of 2 mV/div –

34 • Press CH1”→ Volts/Div”→ Fine”. This setting changes the vertical control to small steps between the coarse settings. It will be helpful when yo

35 Figure 20- Invert Waveform Screen 6. Using the Digital Filter Press “CH1”→“Next Page page 1/2”→ “Filter”, display the digital filter menu. Sele

36 Figure 22 - Digital Filter Adjustment Screen Using Vertical Position Knob and Volts/div Knob • Vertical “POSITION” knob 1. Use the Vertical

37 decrease by turning the knob in the counterclockwise direction. In Fine mode, the knob changes the Volts/Div scale in small steps between the coa

38 Table 8 - Math Function Description Operation Setting Description ＋ A+B Source A waveform adds Source B waveform. － A-B Source A waveform is su

39 • Show the Noise in a DC power supply • Test the filter and pulse response in a system • Analyze vibration Table 9 - FFT Function Menu 1 FFT

4 Do not attempt any internal service or adjustment unless another person, capable of rendering first aid and resuscitation, is present. DO NOT SUBST

40 5. The oscilloscope calculates the FFT spectrum using the center 1024 points of the time-domain waveform. 6. Turn the “Volts/div” knob to ensure

41 Figure 24 - Math Function Screen Select FFT Window Windows reduce spectral leakage in the FFT spectrum. The FFT assumes that the YT wavefo

42 spectrum. Hanning Hamming Better frequency, poorer magnitude accuracy than Rectangular. Hamming has slightly better frequency resolution than Hann

43 7. If FFT display on full screen, press CH1 button again to remove channel waveform display. 8. Press the “CURSOR” button to enter “Cursor” menu

44 Figure 26 - Measuring FFT Frequency NOTE：- The FFT of a waveform that has a DC component or offset can cause incorrect

45 Using REF The reference control saves waveforms to a nonvolatile waveform memory. The reference function becomes available after a waveform has b

46 Figure 27 - Reference Waveform Menu Operation step: 1. Press the “REF” menu button to display the “Reference waveform menu”. 2. Press the “Sour

47 Horizontal System Shown below, there is one button and two knobs in the HORIZONTAL area. Table 13 - Horizontal System Function Menu Option Sett

48 1. Used to change the horizontal time scale to magnify or compress the waveform. If waveform acquisition is stopped (using the RUN/STOP or SINGLE

49 Figure 28 - Horizontal Delay Menu 4. Turn the “Horizontal Position” knob (adjust window’s position) to select the window that you need and expan

5 Compliance Statements Disposal of Old Electrical & Electronic Equipment (Applicable in the European Union and other European countries with sep

50 signal to the EXT TRIG BNC and set the trigger source to Ext or Ext/5. • “FORCE Button: Use the FORCE button to complete the current waveform acq

51 EXT Does not display the trigger signal; the Ext option uses the signal connected to the EXT TRIG front-panel BNC and allows a trigger level range

52 AC Blocks DC components, attenuates signals below 25 Hz. HF Reject Attenuates the high-frequency components above 150 kHz. LF Reject Blocks the D

53 Press the “Slope” option button to select “ ” , “” or “ ”. 4. Set up Trigger mode Press the “Trigger mode” option button to select “Auto”, “Norma

54 When (Positive pulse width less than pulse width setting) (Positive pulse width larger than pulse width setting) (Positive pulse width equal to

55 Table 17 - Pulse Trigger Function Menu 2 Option Setting Description Type Pulse Select the pulse to trigger the pulse matching the trigger co

56 Video Trigger Trigger on fields or lines of standard video signals. Table 18 - Functional Menu of Video Trigger 1 *Available for 4CH models on

57 Figure 32 - Video Trigger Screen Table 19 - Functional Menu of Video Trigger 2 Option Setting Description Type Video Select the video type trig

58 Figure 33 - Video Trigger Menu 2 Operating Instructions: Set up Type 1. Press the “TRIG MENU” button to display “Trigger” menu. 2. Press the

59 2. Press the “Standard” option button to select “PAL/SECAM” or “NTSC”. Slope Trigger Trigger on positive slope or negative slope according to se

6 This symbol shows that the switch is a power switch located at the top of the oscilloscope. Pressing this button toggles the oscilloscope’s state

60 Figure 34 - Slope Trigger Menu Table 21 - Slope Trigger Function Menu 2 Option Setting Description Type Slope Trigger on positive slope or n

61 Figure 35 - Slope Trigger Menu 2 Operating Instructions: Follow next steps if you select “Slope trigger”: 1. Input a signal to one of the cha

62 3. Press the “TRIG MENU” button to enter “Trigger menu”. 4. Press the “Type” option button to select “Slope”. 5. Press the “Source” option butt

63 Table 22 - Set Trigger Mode to Edge Trigger Function Menu 1 Option Setting Description Type Alternate The trigger signal comes from two vertical

64 Table 23 - Set Trigger Mode to Pulse Trigger Function Menu 1 Option Setting Description Type Alternate The trigger signal comes from two vertical

65 Table 25 - Set Trigger Mode to Video Trigger Function Menu 1 *Available for 4CH models only. Table 26 - Set Trigger Mode to Video Trigger Functi

66 Standard NTSC Pal/Secam Select the video standard for sync and line number count. Set up Enter the “Trigger Setup Menu” Next Page Page 2/2 Enter

67 Vertical Select the trigger level that can be adjusted by “LEVEL” knob. You can adjust “LEVEL A”, “LEVEL B” or adjust them at the same time.

68 Coupling Use “Coupling” to make sure the signal passes through the trigger circuit. It is useful for obtaining a steady waveform. If you use tri

69 Trigger Holdoff You can use the Trigger Holdoff function to produce a stable display of complex waveforms. Holdoff is time between whe

7 Table of Contents SAFETY SUMMARY ... 3 CHAPTER 1 INTRODUCTION ...

70 “Trigger setup menu”. 4. Press the “Holdoff” option button and turn the “Universal” knob to change the holdoff time until the waveform trig

71 When you acquire a signal, the oscilloscope converts it into digital form and displays a waveform. The acquisition mode defines how the signal i

72 Figure 40 - Peak Detect • Average: The oscilloscope acquires several waveforms, averages them, and displays the resulting waveform. Advantage:

73 • “RUN/STOP” Button: Press the RUN/STOP button when you want the oscilloscope to acquire waveforms continuously. Press the button again to stop t

74 Operating Instructions: Set up Sampling Format You can press the “Acquisition” option button or turn the “Universal” knob to select “Sampling” mo

75 Set up Sampling mode Press the “Mode” option button to select “Real Time” or “Equ Time”. Set up Sampling rate Adjust the sampling rate by press

76 Figure 45 - Display Menu Screen Table 31 - Display System Function Menu 2 Option Setting Description Format YT XY YT format displays the ve

77 Figure 46 - Display Menu 2 Table 32 - Display System Function Menu 3 20sec Infinite Next Page Page 2/3 Press this button to enter the secon

78 Operation Introduction: Setup waveform display type 1. Press the “DISPLAY” button to enter the “Display” menu. 2. Press the “Type” option button

79 Setup Grid Press the “Grid” option button to select “ ”, “”or“ ”to set the screen whether to display grid or not. Setup Menu Display Press the “Me

8 Signal Source ... 50 Trigger Type ...

80 ● Auto (resets display format to YT) ● Trigger Control ● Horizontal Position Knob ● Vector Display Type ● Scan Display Measur

81 Cursor Measurement The cursor measurement has three modes: Manual, Track, and Auto Measure. Manual Mode Table 33 - Manual Cursor Function Menu

82 • Voltage Cursor: Voltage cursors appear as horizontal lines on the display and measure the vertical parameters. • Time Cursor: Time cursors a

83 Figure 48 - Cursor Menu Track Mode Table 34- Track Mode Function Menu Option Setting Description Cursor Mode Track In this mode, set track curso

84 horizontal position on the waveform by turning the “Universal” knob. The oscilloscope displays the values on the top left of the screen. To do tra

85 Figure 49 - Cursor Menu Auto Mode Table 35 - Auto Mode Function Menu Option Setting Description Cursor Mode Auto Set to auto cursor measure mod

86 Figure 50 - Auto Mode Auto Measurement When you take automatic measurements, the oscilloscope does all the calculation for you. The measurement

87 Figure 51 - Auto Measure Menu 1 Table 37 - Auto Measurement Function 2 - Voltage Measurement Menu Option Setting Description Source CH1, CH2, *C

88 Table 38 - Auto Measurement Function 3 - Time Measurement Menu Option Setting Description Source CH1, CH2, *CH3, *CH4 Select input signal source

89 *Available for 4CH models only. Table 40 - All Measurement Function Menu Option Setting Description Source CH1 CH2 *CH3 *CH4 Select input signal

9 APPLICATION OF X-Y FUNCTION ... 138 ANALYZING A DIFFERENTIAL COMMUNICATION SIGNAL ...

90 Vtop Measures the highest voltage over the entire waveform. Vbase Measures the lowest voltage over the entire waveform. Vavg The arithmetic me

91 If you want to measure voltage parameters, please follow the steps below: 1. Press the “MEASURE” button to enter the “Auto measurement” menu.

92 2. Press the first option button to enter the “second measurement menu”. 3. Select measure type. If you press the “Voltage” option button, “Volt

93 Figure 52 - Measuring Time Parameters Storage System Shown below, the “SAVE/RECALL” button enters the “Storage System Function Menu”. The sco

94 Figure 53 - Save All Menu Screen 1 Figure 54 - Save All Menu Screen 2 Recalling Files The Load button is used to recall your setup files. Once

95 Both Directory and Files have Rename and Return option buttons on Page2/2. Use these buttons to give an existing folder or file a new name or to e

96 • The New File menu options are the same as the New Folder menu. The InputChar option button adds the selected character to the cursor position i

97 Figure 57 - Save/Rec Menu To save setups to the oscilloscope’s internal memory, follow the steps below: For example: Save setup that set wavef

98 • Save Setup to USB Flash Drive Table 43 - Save Setup to USB Flash Drive Function Menu Figure 58 - Save Setup Screen Save Setup to USB Flas

99 5. Press the “New folder” button to create a new folder 6. Press the “Del folder” option button to delete a folder 7. Press the “Modify” option