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  GOS-6200 OSCILLOSCOPE

USER MANUAL

  20  

window segment decreases when the DELAY time coefficient is set to

a lower value (higher time deflection speed).

For better reading, the vertical position of the DELAY time base trace

position can be shifted (please note TRACE SEP (11)).

DELAY

In the DELAY time base mode, the display of the MAIN traces, the

window sector and the MAIN time coefficient will disappear from the

readout. As the trace separation is no longer required under the

circumstances, the function would be switched off too. Consequently,

only the DELAY time coefficient is displayed by the readout.

(23)

H POSITION

The control knob enables a horizontal position shift of the signals. In

combination with ×10 MAG the function makes it possible to shift any

part of the signal on the screen.

(24)

×10 MAG—SETUPS LOCK— 

Pushbutton has double function and

associated MAG LED.

Each time when this pushbutton is pressed, the MAG LED located

above will be switch on or off. If the MAG LED is lighted, the signal

display in all time base modes will be expanded 10 folds and

consequently only a tenth part of the signal curve is visible. The

interesting part of the signal can be made visible with the aid of the H.

POSITION control.

SETUPS LOCK

Pressing and holding the pushbutton, then switch the panel setups lock

function on or off. To avoid unintentional touch of the setting, the

feature is extremely useful for long term and repetitive measurements

that need to be performed under the same test condition of the

oscilloscope setting.

  GOS-6200 OSCILLOSCOPE

USER MANUAL

  21  

(25)

X-Y-VAR

 – Pushbutton with double function.

X-Y

Set to X-Y mode to select three functions sequentially by pressing the

button briefly.

VAR

Pressing and holding the pushbutton to select the TIME/DIV (21)

control knob function between time base switch and vernier (variable).

The variable function is activated in the MAIN time base only.

After switching on the VAR, the time deflection coefficient is still

calibrated until further adjustments are made. Turn the TIME/DIV (21)

control knob counter clockwise to increase the time deflection

coefficient (reduce the deflection speed) and the deflection coefficient

becomes uncalibrated. Instead of “A=10

μ

s”, the readout then displays

“A>10

μ

s” indicating the uncalibrated condition. This setting is stored

if the instrument is switched to ALT or DELAY time base mode.

Switch off the VAR by pressing and holding the pushbutton of time

base mode again, then set the time deflection coefficient back into the

calibrated condition.

Содержание GOS-6200

Страница 1: ...and Checks 5 4 Function Check 5 5 Basic Operation 5 6 Measurement Application 36 36 38 39 41 43 52 6 MAINTENANCE 6 1 Fuse Replacement 6 2 Line Voltage 6 3 Cleaning 56 56 56 57 7 BLOCK DIAGRAM 58 GOS...

Страница 2: ...loured Blue or Black The wire which is coloured Brown must be connected to the terminal marked with the letter L or P or coloured Brown or Red If in doubt consult the instructions provided with the eq...

Страница 3: ...bility EN 61000 4 6 1996 Power Frequency Magnetic field EN 61000 4 8 1993 Voltage Dips Interrupts EN 61000 4 11 1994 Low Voltage Equipment Directive 73 23 EEC amended by 93 68 EEC Safety Requirements...

Страница 4: ...signal measurements on fields frames and lines 6 Z axis intensity modulation For applying a blanking signal from an external source The trace displayed on the screen may be intensity modulated where...

Страница 5: ...ield 1 Field 2 NTSC 525H 1H 263H 1H 262H PAL 625H TV Sync SECAM 625H 1H 313H 1H 312H Max External Input Voltage 400V DC AC peak at 1kHz TRIGGER SYSTEM External Input Impedance 1M 5 25pF approx GOS 620...

Страница 6: ...2k approx Auto Set Input Channel CH1 CH2 Frequency Response 50Hz 50MHz Panel Setting Save Recall 10 sets SPECIAL FUNCTION Panel Setups Lock Provided Voltage AC 100V 120V 230V 10 selectable Frequency 5...

Страница 7: ...power cord before removing the fuse holder GOS 6200 OSCILLOSCOPE USER MANUAL 9 3 3 Environment The normal ambient temperature range of this instrument is from 0 to 40 C 32 to 104 F To operate the inst...

Страница 8: ...are indicated by a warning beep Except the Power pushbutton POWER the Focus control FOCUS the Scale Illumination control ILLUM and the Trace Rotation control all other controls are electronically sel...

Страница 9: ...tensity and turning it counterclockwise to decrease the intensity The TRACE READOUT pushbutton is for selecting the intensity function and indicates the letter TRACE INTEN or READOUT INTEN in the read...

Страница 10: ...ol in cursor measurement mode In alternate time base mode this control knob can be used to separate the DELAY time base trace from the MIAN time base trace Please note TRACE SEP 11 GOS 6200 OSCILLOSCO...

Страница 11: ...the VOLTS DIV function between attenuator and vernier variable The current setting is displayed by the symbol in the readout After switching on the VAR turn the VOLTS DIV control knob counterclockwise...

Страница 12: ...ignal parts displayed by the MAIN time base can be expanded in X direction The expansion ratio depends on the time deflection coefficient ratio of both time bases ie MTB 0 1ms DTB 1 s 100 1 With highe...

Страница 13: ...be made visible with the aid of the H POSITION control SETUPS LOCK Pressing and holding the pushbutton then switch the panel setups lock function on or off To avoid unintentional touch of the setting...

Страница 14: ...s will display a baseline trace when there is no trigger signal or the frequency is below 10Hz The setting of triggering level changed only when the TRIGGER LEVEL control is adjusted to a new level se...

Страница 15: ...R NR AC AC Attenuates trigger signal frequency components below 10Hz and blocks the DC component of the signal AC coupling is useful for triggering on AC waveforms that have a large DC offset GOS 6200...

Страница 16: ...h the external signal GOS 6200 OSCILLOSCOPE USER MANUAL 27 30 HO DELAY Control knob with a double function and associated LED The control knob has two different functions depending on the time base mo...

Страница 17: ...ity to obtain TV line triggering on the horizontal sync pulse The current setting is displayed in the readout SYSTEM field line number GOS 6200 OSCILLOSCOPE USER MANUAL 29 32 SLOPE TV SYNC POLA Pushbu...

Страница 18: ...nstrument contains 10 non volatile memories which can be used by the operator to save instrument setting and to recall them It relates to all controls which are electronically selected Press or pushbu...

Страница 19: ...here the input signals are commonly connected to the oscilloscope 36 CH1 Input BNC socket This BNC socket is the signal input for channel 1 In X Y mode signals at this input are used for the Y or X de...

Страница 20: ...t power and additional signal connections GOS 6200 OSCILLOSCOPE USER MANUAL 35 40 Line voltage selector and input fuse holder Select power source and contain the primary power fuse The fuse rating is...

Страница 21: ...ment controls connectors and indicators refer to the Instruction of Front Panel and Rear Panel of this manual 5 1 Readout Display The CRT readout display indicates how to set up the instrument control...

Страница 22: ...h quality low loss coaxial cables Coaxial cables must be terminated at both ends in their characteristic impedance to prevent signal reflections within the cable Use suitable impedance matching device...

Страница 23: ...ANUAL 41 5 4 Function Check When you start to check the operation of your oscilloscope proceed the following instruction 1 Install the 10 probes onto CH1 and CH2 inputs 2 Connect the probe tips to the...

Страница 24: ...y 2 10 Set to the CHOP mode by pressing the ALT CHOP ADD pushbutton briefly 11 Turn off the CH2 INV by pressing and holding the pushbutton GOS 6200 OSCILLOSCOPE USER MANUAL 43 5 5 Basic Operation Disp...

Страница 25: ...e Single X Y Operation To compare the frequency and phase between two signals by using the X Y mode The X Y waveform displays different amplitude frequency and phase The figure 5 7 shows a typical wav...

Страница 26: ...triggering by main sweep and set MAIN TIME DIV control as desired GOS 6200 OSCILLOSCOPE USER MANUAL 47 2 Set the MAIN ALT DELAY button to ALT mode and set the time range of the DELAY TIME DIVE control...

Страница 27: ...veform display In such a case the sweep can be stable synchronized to the measured signal waveform by adjusting the HO Hold off time of the sweep waveform Figure 5 11 a shows several different wavefor...

Страница 28: ...al signal of TV V and Figure 5 12 b shows horizontal signal of TV H and Fig 5 12 c shows horizontal signal signal line of TV L Figure 5 12 a TV V Figure 5 12 b TV H Figure 5 12 c TV L GOS 6200 OSCILLO...

Страница 29: ...e on the screen Typical measurement readouts and applications are shown in Figure 5 14 The measurement values are automatically controlled by the VOLTS DIV and TIME DIV control settings GOS 6200 OSCIL...

Страница 30: ...or frequency measurement When the two cursors are superimposed at two edge points of the one period waveform by the C1 POSITION and C2 POSITION controls the measurement value is displayed in frequency...

Страница 31: ...is tapped to permit operation from 100 120 or 230VAC 50 60Hz line voltage Conversion from one line voltage to another is done by changing the line voltage selector switch as shown in page 8 The rear...

Страница 32: ...GOS 6200 OSCILLOSCOPE USER MANUAL 58 7 Block Diagram...

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