CQ5010B SINGLE TRACE 10MHZ OSCILLOSCOPE USER’S MANUAL ⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯ CONTENTS ⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯ 1. SAFETY PRECAUTION 2. SPECIFICATIONS 2.1 VERTICAL SYSTEM 2.
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.
OS-10V 02/04/2001 Rev.2 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 : z 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 carefully.
OS-10V 02/04/2001 Rev.2 2.3 HORIZONTAL SYSTEM Sweep Time Trimming Ratio 0.1S / DIV ~0.1µS / DIV ±3% ≧2.5:1 2.4 X-Y MODE Sensitivity Bandwidth(-3dB) 0.2V/DIV～0.5V/DIV DC: 0~1MHz AC: 10Hz~1MHz 2.5 CALIBRATION SIGNAL Waveform Range Frequency Symmetric Square Wave 05.V ±2% 1kHz ±2% 2.6 CRT Display Area Accelerating Voltage Display Color 8 × 10DIV 1DIV=6mm 1200V Green 2.7 POWER SOURCE Voltage Range Frequency Power Consumption 110V ±10% 60Hz ±2Hz 25W 2.
OS-10V 02/04/2001 Rev.2 3. CONTROL AND INDICATORS 3.1 Control Panel Position 3.1.1 Front Panel Fig 3-1 POWER 1 ~ 10MHz HANDY OSCILLOSCOPE 2 INTENSITY 3 FOCUS 4 PROBE ADJUST 5 1kHz 0.5Vpp VOLTS/DIV. V 14 .5 .2 .1 50 mV 1 20 2 10 6 7 5 5 POSITION VOLT VAR. POSITION TIME VAR. 15 CAL CAL + _ 16 X EXT 8 LEVEL + _ AUTO NORM TV 10 11 Y INPUT DC AC INT. LINE EXT. 1M 30pF 18 9 1M 30pF 17 12 13 3.1.
OS-10V 02/04/2001 Rev.2 3.2 FUNCTIONS OF CONTROL SWITCHES NO. 1 2 3 4 SWITCHES POWER SWITCH POWER LIGHT INTENSITY FOCUS 5 CALIBRATION 6 7 TIME/DIV Horizontal POSITION Time VAR 8 9 10 11 12 13 14 15 16 17 18 19 FUNCTIONS Power on/off. Lights when power on. Controls brightness of display. After obtaining appropriate brightness with INTENSITY, adjust FOCUS for clearest line. Provide symmetric square wave for 0.5V range, frequency=1KHz.
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.
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 from [13], LINE input from power source. 3.3.
OS-10V 02/04/2001 Rev.2 (3) Connect CH1 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 Good Compensate Over Compensate Fig 4-1 Under Compensate LF COMP Fig 4-2 4.2 MEASUREMENT 4.2.1 P-P Voltage Measurements Step : (1) Input signal to INPUT [18] terminal.
OS-10V 02/04/2001 Rev.2 probe is 2V/DIV, then Vp-p=2×4.1=8.2(V) B A 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 “⊥”. (3) Setup POSITION, let sweep baseline coincide with horizontal center, define it as zero reference level. (4) Input signal into terminal.
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.
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.
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 2 3 Probe 1 pc. Cord 1 pc. User’s manual WARNING DO NOT OPEN THE CASE, HIGH VOLTAGE EXISTED.
