USER`S MANUAL - CONRAD Produktinfo.
Contents
1. Fig 4 2 4 2 MEASUREMENT 4 2 1 P P Voltage Measurements Step 1 Input signal to INPUT 18 terminal 2 Setup VOLTS DIV and observe waveform let waveform display on the screen within 5 divisions and turn VAR clockwise to the calibration position 3 Adjust level to make waveform steady 4 Adjust sweep controls to show at least one cycle waveform on the screen 5 Adjust vertical position to make the bottom of waveform lies on a horizontal axis on the screen Fig 4 3A 6 Adjust horizontal position to make the top of waveform lies center of vertical axis Fig 4 3B 7 Read the divisions between A B on vertical direction 8 Calculate the signal Vp p using the formula below Vp p DIV of vertical directionx Sensitivity For example In Fig 4 3 vertical divisions of A B is 4 1 DIV sensitivity of the 10 1 8 OS 10V 02 04 2001 Rev 2 probe is 2V DIV then Vp p 2x4 1 8 2 V U M HHEH Fig 4 3 4 2 2 DC VOLTAGE MEASUREMENT STEP 1 Setup front panel connector to obtain a sweep baseline on the screen 2 Setup input coupling options as 1 3 Setup POSITION let sweep baseline coincide with horizontal center define it as zero reference level 4 Input signal into terminal 5 Set input coupling to DC adjust VOLTS DIV let waveform show in the proper position on the screen turn VAR to the calibra2. F E O 2 Za O 1 OS 10V 02 04 2001 Rev 2 3 2 FUNCTIONS OF CONTROL SWITCHES NO SWITCHES FUNCTIONS 1 POWER SWITCH Power on off 2 POWER LIGHT Lights when power on 3 INTENSITY Controls brightness of display 4 FOCUS After obtaining appropriate brightness with INTENSITY adjust FOCUS for clearest line 5 CALIBRATION Provide symmetric square wave for 0 5V range frequency 1KHz Used for adjusting 10 1 Capacitor and adjusting the vertical amp horizontal sensitivity 6 TIME DIV Selects the sweep rate 7 Horizontal Horizontal positioning control of trace on the screen POSITION 8 Time VAR Provides continuously variable sweep rate turn clock wise to the end is the calibrating position 9 LEVEL Control signal trigger to sweep at certain level 10 Triggering occurs when trigger signal crosses trigger EXT X level in a positive going direction Triggering occurs when trigger signal crosses trigger level in a negative going direction EXT X X Y switch 11 AUTO NORM AUTO a single trace shown on screen even no signal TV Automatically reverts to triggered sweep operation when adequate triggered signal is present Needs to adjust the Level NORM No trace on screen if no signal Trace is only generated when adequate trigger signal is present TV used to show TV signals 12 INT EXT LINE Switch to select the Trigger Source INT E
3. for clearest line If unstable adjust level 9 Horizontal Level Adjustment a Slightly turn 20 22 counter clockwise but not to unscrew b Insert a straight end screw driver to 21 and observe the wave move screw driver in order to let the waveform parallel with the horizontal line c Screw the 20 22 Connects the calibration signal 5 to Y input terminal 19 with 1 1 probe Adjust positions 7 16 to obtain waveform like Fig 3 3 Fig 3 3 3 3 3 VERTICAL SYSTEM OPERATION 1 2 VOLTS DIV switch should turn to correct position following the input signal range Adjust position 14 to show the whole waveform within available area Adjust with VAR 16 if necessarily trimming ratio is 22 5 1 Input coupling options DC is used for observing object with direct current signal such as logical and static signals DC must be used with low frequency AC is used for observing the AC component of signals 1 is used to establish a trace at the zero volt reference OS 10V 02 04 2001 Rev 2 3 X Y OPERATION When 10 set at EXT X The oscilloscope is used for X Y operation at this moment Input 18 is Y axis with the same sensitivity Input 13 as X axis 14 can be adjusted continuously within 0 2V DIV 0 5V DIV 3 3 4 TRIGGER SOURCE In Fig 3 1 12 provides 3 sources for selection INT trigger EXT trigger input fr
4. Low Voltage Directive To ensure that the instrument is used safety follow all safety and operating instructions in this manual If the instrument is not used as described in this manual the safety features might be impaired WARNING OS 10V 02 04 2001 Rev 2 A Non compliance with the warnings and or the instructions for use may damage the instrument and or its components or injure the operator Take extreme care for the following conditions when using the instrument For your own safety and that of the instrument you must follow the procedures described in this instruction manual and especially read all the notes preceded by the symbol A carefully Do not use this instrument in a location where there is explosive gas in the vicinity The use of this instrument in a location where there is explosive gas could result in explosion If there is any smoke abnormal odor or abnormal sound coming display type this instrument immediately switch off the power and disconnect the power cord Continuous using of this instrument under these conditions could result in electrical shock or fire After disconnecting the power cord contact the service offices for repair Repair by the user is dangerous and should be strictly avoided Take care not to allow water to get into this instrument or the wetting of the instrument The use of this instrument in a wet state could result in electrical shock or fire If water or othe
5. SINGLE TRACE 10MHZ OSCILLOSCOPE USER S MANUAL CONTENTS 1 SAFETY PRECAUTION 2 SPECIFICATIONS 2 1 VERTICAL SYSTEM 2 2 TRIGGER SYSTEM OS 10V 02 04 2001 Rev 2 2 3 HORIZONTAL SYSTEM 2 4 X Y MODE 2 5 CALIBRATION 2 6 CRT 2 7 POWER SOURCE 2 8 PHYSICAL FEATURES 2 9 WORKING ENVIRONMENT 2 10 PRESSURE PROOF TEST 3 CONTROL AND INDICATORS 3 1 CONTROL PANEL POSITION 3 2 FUNCTIONS OF CONTROL SWITCHES 3 3 OPERATING INSTRUCTION 4 MEASUREMENT 4 1 EXAMINATION AND ADJUSTMENT BEFORE TAKING MEASUREMENT 4 2 MEASUREMENT OF VOLTAGE 4 3 TIME MEASUREMENTS 4 4 PHASE DIFFERENCE MEASUREMENTS 4 5 X Y MODE APPLICATIONS 5 ACCESSORIES 1 SAFETY PRECAUTION CQ5010B is a portable Oscilloscope with frequency bandwidth of 0 10 MHz and sensitivity of 5nV DIV 5V DIV Equipped with 10 1 probe which makes the sensitivity up to 50V div Sweep rate at 0 1S DIV 0 1uS DIV on horizontal system The oscilloscope is easy to operate and highly reliable It is an ideal instrument for research production education and development in electronic device or circuitry The instrument is designed and tested in accordance with EN publication 61010 CAT II Pollution degree II and Overvoltage 600V The instrument has been tested in accordance to the following EC Directives EMC a EN50082 b EN55011 c EN61000 3 2 d EN61000 3 3 The instrument complies with the requirements of the European Council Directive 89 336 EEC EMC Directive and 73 23 EEC
6. XT LINE 13 Ext Trig Input When switching 10 to EXT X it s X Y input terminal Terminal When switching 12 to EXT it s Ext Trig Input terminal 14 VOLTS DIV Adjusting sensitivity of vertical system 15 Vertical POSITION Control vertical position of trace on the screen 16 Volt VAR Continuously adjusting the sensitivity of vertical system turn clockwise to the end is the calibration position 17 coupling options Selects input coupling options ACLDC 18 INPUT Vertical input terminal 19 POWER INPUT power input connector refer to the rear panel for voltage CONNECTOR 220 V 10 fuse 2 x 0 5A on rear panel AND FUSE 3 3 OPERATING INSTRUCTION OS 10V 02 04 2001 Rev 2 3 3 1 VOLTAGE CHECKING CQ5010B oscilloscope use 220V 10 voltage Before using make sure that the correct voltage is being used Otherwise it would cause accident and damage to the instrument 3 3 2 BASIC OPERATION 1 POSITION FOR CONTROL SWITCHES CONTROL SWITCHES POSITION INTENSITY 3 Center FOCUS 4 Center POSITION 7 16 Center VOLTS DIV 15 0 1V VAR 8 17 Calibration position AUTO NORM 11 Auto TIME DIV 6 0 5mS SLOPE 10 INT EXT LINE 12 Int ACLDC 18 DC 2 OPERATION 3 4 5 a Power on 1 b Power lights at 2 c Allow for warm up of about 5 minutes then adjust the intensity 3 d Adjust focus 4
7. ations should be done before taking measurement 4 1 1 TRACE ROTATION Generally horizontal trace on the screen should parallel with the horizontal line Due to the earth s magnetic field and other factors which causes horizontal trace leaning and making errors you must examine the followings before taking measurement 1 Adjust components on the front panel to obtain a horizontal trace on the screen 2 Adjust vertical position and make sweep baseline lied in horizontal line of vertical center 3 Examine whether sweep baseline is parallel with horizontal line if not please following point 3 3 2 3 to correct it 4 1 2 PROBE COMPENSATION Adjustment of probe is useful to compensate mistakes cause by difference of oscilloscope input characteristic 1 Follow step 3 3 2 setup front panel components and obtain a sweep baseline 2 Set VOLTS DIV to 10mV DIV OS 10V 02 04 2001 Rev 2 3 Connect CH 1 10 1 probe to input terminal and connect with CAL 4 Follow Chapter 3 to operate relative components get waveform on the screen as figure 4 1 5 Observe whether the waveform compensation is good if not you can adjust the LF compensation components as shown in figure 4 2 EEE FETE 1 E Good Compensate Over Compensate Under Compensate Fig 4 1 LF COMP
8. e measurement is 16uS Fig 4 6 o x w 4 3 2 CYCLE FREQUENCY MEASUREMENTS Shown in Fig 4 6 frequency measurements are made by measuring the time period of one cycle of waveform T and calculating the frequency that equals the reciprocal of the time period For example T 16uS then frequency is 4 3 3 PULSE RISE TIME AND FALL TIME MEASUREMENTS OS 10V 02 04 2001 Rev 2 For rise time and fall time measurements the 10 and 90 amplitude points are used as starting and ending reference points 1 Apply a signal to the input jack 18 2 Use the VOLTS DIV and VAR controls to adjust the waveform peak to peak height to five divisions 3 Adjust vertical position so that the tops of the waveform coincide with 100 point while the bottoms of the waveform coincide with 0 point 4 Adjust Sweep switch to obtain the positive going direction or negative going direction of the waveform on the screen 5 Use the horizontal POSITION control to adjust the 10 points to coincide with a vertical reference line 6 Measure the horizontal distance in divisions between the 10 and 90 points on the waveform divisions 7 Pulse rise time and fall time measurement is calculated by the following equation Horizontal distance div x sensitivity Time div Rise Time Horizontal factor For the example shown in Fig 4 7 the horizontal distance from 10 to 90 is 2 4 divis
9. ger Sources Int Line Ext Trigger Mode Norm AUTO TV OS 10V 02 04 2001 Rev 2 2 3 HORIZONTAL SYSTEM Sweep Time 0 158 DIV 0 1uS DIV 3 Trimming Ratio 22 521 2 4 X Y MODE Sensitivity 0 2V DIV 0 5V DIV Bandwidth 3dB DC 0 1MHz AC 10Hz 1MHz 2 5 CALIBRATION SIGNAL Waveform Symmetric Square Wave Range 05 V 2 Frequency 1kHz 2 2 6 CRT Display Area 8 x LODIV 1DIV 6mm Accelerating Voltage 1200V Display Color Green 2 7 POWER SOURCE Voltage Range 110V 10 Frequency 60Hz 2Hz Power Consumption 25W 2 8 PHYSICAL FEATURES Weight 3kg Dimensions H x W x D 190 x130 x270mm 2 9 WORKING ENVIRONMENT Working temperature 5 C 40 C Storage Environment 30 C 60 C 10 80 RH Working Altitude lt 2000m 2 10 PRESSURE PROOF TEST Pressure proof test 1500V 1min OS 10V 02 04 2001 Rev 2 3 CONTROL AND INDICATORS 3 1 Control Panel Position 3 1 1 Front Panel Fig 3 1 VOLTS DIV v 2 1 5 Tr A MA 5 50 2 TRS j Fx POSITION VOLT VAR lt POSITION TIME VAR LEVEL 8 Go a 0 0 O o aan A AUT NORMTV 3 1 2 Rear Panel Fig 3 2
10. ions the sweep TIME DIV setting is 1uS DIV factor x 1 The rise time is calculated as follows 1uS DIV x 2 4DIV Rise Time 2 4uS Fig 4 7 E E IN A O isd cae E 90 De IELI LLI LEYLELENLENTES TNT T TT PEPPER PERERA 10 AS 2 4DIN 4 4 TV Signals measurement Steps 1 Connect TV signals to INPUT jack 19 2 Set Trigger method to TV 10 Sweep switch turn to 2mS Div 3 Observe the screen 1t should be negative synchronize pulse wave 4 Adjust VOLTS DIV and VAR to obtain proper range 4 5 X Y mode applications 11 OS 10V 02 04 2001 Rev 2 There are some cases which X axis requires control from external signals e g external connection of sweep signals signals of Lissajous pattern or other equipment s display setup X Y mode operation is turn 10 to EXT X input signals through 13 sensitivity to be adjusted directly with 14 then input Y signal through 18 5 ACCESSORIES 1 Probe 1 pc 2 Cord I pc 3 User s manual A WARNING DO NOT OPEN THE CASE HIGH VOLTAGE EXISTED
11. om 13 LINE input from power source 3 3 5 HORIZONTAL SYSTEM OPERATION 1 Sweep setup turn the sweep switch to correct position according to signal frequency adjust POSITION 7 to show the whole waveform within available area Adjust with VAR 8 if necessarily trimming ratio is 22 5 1 2 There are 3 kinds of Trigger sources 11 AUTO auto sweep when triggering signal is applied Level 9 will adjust to proper position The screen showing steady free run wave required frequency higher than 20Hz 11 NORM while waiting for sweep no trace when receiving input signal the circuits was triggered to sweep and show waveform 11 TV used to determine TV signal The signal is negative 3 SLOPE selection Used to select whether the trigger signal crosses trigger level in a positive going or a negative going direction 4 Level setup Use to adjust signal sweep on a level as starting reference 3 3 6 SIGNAL CONNECT 1 Probe operating Use 10 1 to 1 1 alternating probes When using 10 1 probe input impedance is 10MQ 16 pF While if 1 1 is used for observing lower signal input impedance is IMQ 30 pF At this stage please consider of the affection of the probe upon the detected circuits 2 Probe Adjustment Before using 10 1 probe must be adjusted correctly see Point 4 1 2 4 Measurement 4 1 EXAMINATION AND ADJUSTMENT BEFORE MEASUREMENT In order to be more accurate and prevent errors the following observ
12. r foreign matter has gotten into this instrument first switch the power off remove the power cord and call for repair Do not place this instrument on an unstable place such as on a shaky stand or on a slant The dropping or turning over of this instrument could result in electrical shock injury or fire If this instrument has dropped or its cover has been damaged switch the power off remove the power cord and call for repair Do not allow any foreign matter such as metal or inflammable substance to get in from the air hole The entrance of any foreign matter from the ventilation port etc could result in fire electrical shock or power failure Use this instrument with the rated AC power supply Use of this instrument with a voltage other than specified could result in electrical shock fire or power failure The usable power voltage range is marked on the rear panel Do not remove either the cover or panel Take sufficient care when measuring high voltages Do not modify this instrument Avoid use of any damaged cable or adapter 2 SPECIFICATIONS 2 1 VERTICAL SYSTEM Sensitivity 5mV DIV 5V DIV 3 Trimming Ratio 291 Rise Time lt 35ns Bandwidth 3dB DC 0 10MHz AC 10Hz 10MHz Input Impedance 1MQ 3 30 pF 5pF Max Input Voltage 400V pk 2 2 TRIGGER SYSTEM Trigger Sensitivity Int 1 div Ext 0 3V Ext Trigger Input Impedance IMQ 30pF Ext Trigger Max Input Voltage 400Vpk Trig
13. tion position 6 Read the divisions between the zero reference level to the wave form by the tested object 7 Calculate the DC voltage V divisions on vertical axis x sensitivity x direction Shown in Figure 4 4 zero reference level at the center use 10 1probe sensitivity is 2V Div 2 points as A amp B A is 1 5 Div over the zero reference level B is 3Div below the zero reference level DC voltage level of the 2 points are VA 15x2x 3V VB 3x2x 6V Fig 4 4 Level Zero volt Reference bid OS A NN Level OS 10V 02 04 2001 Rev 2 4 3 TIME MEASUREMENTS 4 3 1 TIME SPACE MEASUREMENTS This is a procedure for making time period measurements between two points on a waveform 1 Connect the signal to be measured to the input terminal 18 2 Adjust level to obtain steady waveform 3 Turn VAR clockwise to the calibration position and set sweep controls to obtain a normal display of 1 2 signal cycles 4 Using the vertical and horizontal positions set two points to be measured in the waveform on the same horizontal level 5 Measure the distance between the two points the measurement is calculated by the following equation Distance between 2 points DIV x rate of sweep t Div TIME S gt Horizontal factor Shown in figure 4 6 distance between A amp B is 8 Div sensitivity is 2 uS Div Horizontal factor x 1 then Tim
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