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EZ Digital OS-5060A Operation Manual

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  • Page 1 Analog Oscilloscope Operation Manual Free Datasheet http://www.datasheet4u.com/...
  • Page 2 Analog Oscilloscope Operation Manual Free Datasheet http://www.datasheet4u.com/...
  • Page 3 Safety Summary Safety Precautions Please take a moment to review these safety precautions. They are provided for your protection and to prevent damage to the oscilloscope. This safety information applies to all operator and service personnel. Caution and warning statements. CAUTION : Is used to indicate correct operating or maintenance procedures in order to prevent damage to or destruction of the...
  • Page 4 Introduction Thank you for purchasing a EZ product. Electronic measuring instruments produced by EZ digital are high technology products made under strict quality control. We guarantee their exceptional and utmost reliability. For proper use of the product please read this manual carefully Note 1.
  • Page 5 Warranty Warranty service covers a period of one year from the date of original purchase. In case of technical failure within a year, repair service will be provided by our service center or sales outlet free of charge. We charge for repairs after the one-year warranty period expires. When the failure is a result of user’s neglect, natural disaster or accident, we charge for repairs regardless of the warranty period.

  • Page 6: Table Of Contents

    CONTENTS 1. INTRODUCTION 1-1. SPECIFICATION ------------------------------------------- 1-2. PRECAUTIONS -------------------------------------------- 10 2. OPERATING INSTRUCTIONS 2-1. FUNCTION of CONTROLS -------------------------------- 13 2-1-1. Display and Power Blocks -------------------------- 13 2-1-2. Vertical Amplifier Block ------------------------------ 14 2-1-3. Sweep and Trigger Blocks -------------------------- 16 2-1-4. Miscellaneous Features ------------------------------ 18 2-2.
  • Page 7 3. USER MAINTENANCE GUIDE ---------------------- 49 3-1. CLEANING ----------------------------------------------------- 49 3-2. CALIBRATION INTERVAL --------------------------------- 49 4. DIAGRAMS ------------------------------------------------------ 50 4-1. EXTERNAL VIEWS ------------------------------------------ 50 4-2. BLOCK DIAGRAMS ------------------------------------------ 51 Free Datasheet http://www.datasheet4u.com/...

  • Page 8: Introduction

    1. INTRODUCTION 1-1. SPECIFICATIONS OS – 5060 A SPEC MODEL * CRT 1) Configuration 6-inch rectangular screen with internal graticule ; 8X10 Div (1div = 1Cm), making for measurement of rise time. 2mm subdivisions along the central axis. 2) Accelerationg potential +10Kv approx.
  • Page 9 OS – 5060 A SPEC MODEL 8) Rise time 5.8ns or less (23ns of less : X5 MAG) 9) CH1 out 20mV /div into 50 ohms : DC to 10MHz(-3dB) * Vertical Deflection(2) 10) Polarity invertion CH2 only 11) Signal delay delay cable supplied * Horizontal Deflection 1) Display modes...
  • Page 10 SPEC MODEL OS – 5060 A * X-Y Operation 1) X-axis (same as CH1 except for the following) Deflection factor : same as that of CH1 : ±5% Accuracy Frequency response : DC to 500kHz(-3dB) 2) Y-axis Same as CH2 3) X-Y phase difference 3˚or less(at DC to 50kHz) * Calibrator(probe adj.)

  • Page 11: Precautions

    1-2. PRECAUTIONS 1-2-1. Line Voltage Selection The instrument must be operated with the correct Line Voltage Selector switch setting and the correct line fuse for the line voltage selected to prevent damage. The instrument operates from either a 90 to 132 volts or a 198 to 250 volt line voltage source. Before line voltage is applied to the instrument, make sure the Line Voltage Selector switch is set correctly.
  • Page 12 1-2-2. Installation and handling precautions When placing the OS-5060A in service at your workplace, observe the following precautions for best instrument performance and longest service life. 1. Avoid placing this instrument in an extremely hot or cold place. Specifically, don’t leave this instrument in a close car, exposed to sunlight in midsummer, or next to a space heater.
  • Page 13 Free Datasheet http://www.datasheet4u.com/...

  • Page 14: Operating Instructions 2-1. Function Of Controls

    This section contains the information needed to operate the OS-5060A and utilize it in a variety of basic and advanced measurement procedures. Included are the identification and function of controls, connectors, and indicators, startup procedures, basic operating routines, and selected measurement procedures.

  • Page 15: Vertical Amplifier Block

    2-1-2 Vertical Amplifier Block (9) CH1 or X IN connector : For applying an input signal to vertical- amplifier channel 1, or to the x-axis (horizontal) amplifier during X-Y operation. <CAUTION> To avoid damage to the oscilloscope, do not apply more than 250V(DC+Peck AC) between “CH1”...
  • Page 16 deflection factor between steps of the VOLTS /DIV switches. VOLTS/DIV calibrations are accurate only when the VARIABLE controls are click-stopped in their fully clockwise position. (15) (16) VARIABLE control To increase the vertical amplifier sensitivity (on VARIABLE) by 5 times. The effective scale factor of the most sensitive position of the VOLTS/DIV switch thereby becomes 1mV/div.

  • Page 17: Sweep And Trigger Blocks

    2-13 Sweep and Trigger Blocks (21) HORIZ DISPLAY switches To select the sweep mode. A pushbutton sweeps the CRT at the main (A) Timebase rate when pressed. A INT pushbutton sweeps the CRT at the main (A) timebase rate when pressed, and the B timebase intensifies a section of the trace(s) The location of the intensified section is determined by the DELAY TIME POS control.
  • Page 18 sweep speed by 10 times. (26) Horizontal POSITION To adjust the horizontal position of the traces control displayed on the CRT. Clockwise rotation moves the traces to the right, counterclockwise rotation moves the traces to the left. (27) Trigger MODE switch To select the sweep triggering mode.

  • Page 19: Miscellaneous Features

    (A) sweep. This avoids triggering on intermediate trigger points within the repetition cycle of the desired display. The holdoff time increases with clockwise rotation. NORM is a position at full counterclockwise Rotation that is used for ordinary signals. (30) Trigger LEVEL control To select the trigger-signal amplitude at which triggering occurs.

  • Page 20: Basic Operating Procedures

    2-2 BASIC OPERATING PROCEDURES The following paragraphs in this section describe how to operate the OS-5060A, Beginning with the most elementary operating modes, and progressing to the less frequently-used and/or complex modes. 2-2-1 Preliminary Control Settings and Adjustments Before placing the instrument in use, set up and check the instruments as follows ;...
  • Page 21 immediately after ward. Also, get in the habit of turning the brightness way down if the scope is left unattended for any period of time. 4. Turn the FOCUS control (4) for a sharp trace. 5. Turn the CH1 Vertical POSITION control (19) to move the CH1 trace to the center horizontal graticule line.
  • Page 22 (a) PROBE (b) EGGECTS OF PROBE COMPENSATION FIGURE 2-2 PROBE COMPENSATION Free Datasheet http://www.datasheet4u.com/...

  • Page 23: Signal Connections

    2-2-2 Signal Connections There are three methods of connecting an oscilloscope to the signal you with to observe, They are a simple wire lead, coaxial cable, and scope probes. A simple lead wire may be sufficient when the signal level is high and the source impedance low (such as TTL circuitry), but is not often used.

  • Page 24: Signal Trace Operation

    If you are using plain lead wire, be certain to first connect a ground wire between the OS-5060A Ground connector (39) and the chassis or ground bus of the circuit under observation.
  • Page 25 Trigger LEVEL control (30) Mid rotation HOLDOFF control (29) NORM (fully CCW) 2. Use the corresponding Vertical POSITION control (17) or (18) to set trace near mid screen. 3. Connect the signal to be observed to the corresponding INPUT connector (9) or (10), and adjust the corresponding VOLTS/DIV switch (13) or (14) so the displayed signal is totally on screen.

  • Page 26: Dual Trace Operation

    2-2-4 Dual-trace Operation Dual-trace operation is the major operating mode of the OS-5060A. The setup for dual- trace operation is identical to that of 2-3-2 Single-trace Operation with the following exceptions ; 1. Set the V MODE switch (19) to either ALT or CHOP. Select ALT for relatively high- frequency signals (A TIME/DIV switch set to .2ms or faster).
  • Page 27 FIGURE 2-3. USING THE TV SYNC SEPARATOR Free Datasheet http://www.datasheet4u.com/...

  • Page 28: Trigger Options

    2-2-5. Trigger options Triggering is often the most difficult operation to perform on an oscilloscope because of the many options available and the exacting requirements of certain signals. Trigger Mode Selection. When the NORM trigger mode is selected, the CRT beam is not swept horizontally across the face of the CRT until a sample of the signal being observed, or another signal harmonically related to it, triggers the timebase.
  • Page 29 (fast rise and fall times). However, triggering from the jittering trailing edge will cause the entire trace to jitter, making observation difficult. Triggering from the stable leading edge (+ slope). Yields a trace that has only the trailin-edge jitter of the original signal. If you are ever in doubt, or have an unsatisfactory display, try both slopes to find the best way.
  • Page 30 FIGURE 2-4. TRIGGER-SLOPE SELECTION Free Datasheet http://www.datasheet4u.com/...

  • Page 31: Additive And Differential Operation

    Make sure both are set to the same position. To set up the OS-5060A for differential operation do everything just described and also pull the CH2 Vertical POSITION knob (18) to activate the PULL CH2 INV switch.

  • Page 32: X-Y Operation

    2-2-7. X-Y Operation The internal timebase of the OS-5060A are not utilized in X-Y operation ; deflection in both the vertical and horizontal directions is via external signals. Vertical channel I serves as the X-axis (horizontal) signal processor, so horizontal and vertical axis have identical control facilities.

  • Page 33: Delayed-Time Base Operation

    2-2-8. Delayed-time base operation The OS-5060A contains two timebase, arranged so one (the A timebase) may provide a delay between a trigger event and the beginning of sweep by the second (B) timebase. This allows any selected portion of a vaveform, or one pulse of a pulse train, to be spread over the entire CRT screen.
  • Page 34 Triggered B Sweep. In basic delayed sweep, the B timebase is not triggered by a signal event, it begins when the main (A timebase) sweep cross comparate level setting by DELAY TIME POS. knob. The only problem with this is that main timebase jitter becomes apparent in the B sweep at high ratios of A to B TIME/DIV switch setting (100 : 1 and up).
  • Page 35 FIGURE 2-5. SWEEP MAGNIFICATION BY THE B TIME BASE Free Datasheet http://www.datasheet4u.com/...

  • Page 36: Measurement Applications

    2-3. MEASUREMENT APPLICATIONS This section contains instructions for using your OS-5060A for specific measure- ment procedures. However, this is but a small sampling of the many applications possible for this oscilloscope. These partcular applications were selected to demonstrate certain controls and features not fully covered in BASIC OPERATING PROCEDURES, to clarify certain operations by example, or for their importance and universality.
  • Page 37 4. Use the Horizontal POSITION control (26) to position one of the positive peaks on the central vertical graticule line. This line has additional calibration marks equal to 0.2 major division each. 5. Count the number of division form the graticule line touching the negative signal peaks to the intersection of the positive signal peak with the central vertical graticule line.
  • Page 38 FIGURE 2-6. PEAK-TO-PEAK VOLTAGE MEASUTEMENT FIGURE 2-7. INSTANTANEOUS VOLTAGE MEASUTEMENT Free Datasheet http://www.datasheet4u.com/...
  • Page 39 Instantaneous Voltages. To measure instantaneous voltage, proceed as follows. 1. Set up the scope for the vertical mode desired per the instructions in 2-3 BASIC OPERATING PROCEDURES. 2. Adjust the TIME/DIV switch (22) or (23) for one complete cycle of waveform and set the VOLTS/DIV switch for a trace amplitude of 4 to 6 divisions(see FIGURE 2-7) 3.

  • Page 40: Time Interval Measurements

    2-3-2 Time Interval Measurements The second major measurement function of the triggered-sweep oscilloscope is the measurement of time interval. This possible because the calibrated timebase results in each division of the CRT screen representing a known time interval. Basic Technique. The basic technique for measuring time interval described in the Following steps.
  • Page 41 Period, Pulse. Width, and Duty Cycle. The basic technique described in the preceeding paragraph can be used to determine pulse parameters such as period, pulse width, duty cycle, etc. The period of a pulse or any other waveform is the time it takes for one full cycle of the signal.

  • Page 42: Frequency Measurement

    2-3-3. Frequency Measurement When a precise determination of frequency is needed, a frequency counter is obviously the first choice. A counter can be connected to the CH-1 OUTPUT connector (20) for convenience when both scope and counter are used. However, an oscilloscope alone can be used to measure frequency when a counter is not available, or modulation and/or noise makes a counter unusable.
  • Page 43 FIGURE 2-8. TIME INTERVAL MEASUREMENT Free Datasheet http://www.datasheet4u.com/...

  • Page 44: Phase Difference Measurement

    2-3-4. Phase Difference Measurements Phase difference or phase angle between-two signals can be measured using the dual-trace feature of the oscilloscope, or by operation the oscilloscope in the X-Y mode. Dual-trace Method. This method works with any type of waveform. In fact, it will often work even if different waveforms are being compared.
  • Page 45 VARIABLE control to adjust its amplitude to exactly 6 vertical divisions. 7. The horizontal distance between corresponding points on the waveform is the phase difference. For example, in the Figure 2-9, illustration the phase difference is 6 minor division, or 60˚. 8.
  • Page 46 7. Count the number of division subtended by the trace along the central vertical graticule line (dimension B). You can now shift the trace vertically with CH2 POSITION control to a major division line for easier counting. 8. The phase difference (angle θ) between the two signals is equal to the arc sine of dimension A÷B (the step 7 number divided by 6).
  • Page 47 2-3-5. Risetime Measurement Risetime is the time required for the leading edge of a pulse to rise from 10% to 90% of the total pulse amplitude. Falltime is the time required for the trailing edge of a pulse of drop from 90% of total pulse amplitude to 10%.

  • Page 48: Rise Time Measurement

    10% and central vertical graticule lines, and repeat Steps 7 and 8. 10. When measuring the rise and fall time, note that 5.8ns-Rise time (tr)=0.35/f- which is transition time is contained in the OS-5060A oneself. Therefore the real transition time (tc) is composed of measure transistion time™ and tr.
  • Page 49 FIGURE 2-11. RISETIME MEASUREMENT Free Datasheet http://www.datasheet4u.com/...

  • Page 50: User Maintenance Guide

    3. USER MAINTENANCE ROUTINES Maintenance routines performable by the OS-5060A operator are listed in this section. More advanced routines (i.e., procedures involving repairs of adjustments within the instrument) should be referred to EZ service personnel. 3-1. CLEANING If the outside of the case becomes dirty or stained, carefully wipe the soiled surface with a rag moistened with detergent, then wipe the cleaned surface with a dry cloth.

  • Page 51: Diagrams

    4. DIAGRAMS 4-1. EXTERNAL VIEWS Free Datasheet http://www.datasheet4u.com/...

  • Page 52: Block Diagrams

    4-2. BLOCK DIAGRAMS Free Datasheet http://www.datasheet4u.com/...
  • Page 53 The specifications are subjected to change without notice. Free Datasheet http://www.datasheet4u.com/...

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