Kikusui COS5060 User manual

INSTRUCTION MANUAL
OSCILLOSCOPE
MODEL COS5060
KIKUSUI ELECTRONICS CORPORATION

Power requirements of this product have been changed and the relevant sections of the Operation
Manual should be revised accordingly.
(Revision should be applied to items indicated by a check mark 00
□ Input voltage
The input voltage of this product is _VAC,
and the voltage range is_to_VAC. Use the product within this range only.
□ Input fuse
The rating of this product's input fuse is _A, _VAC, and_.
WARNING
• To avoid electrical shock, always disconnect the AC
power cable or turn off the switch on the switchboard
before attempting to check or replace the fuse.
• Use a fuse element having a shape, rating, and
characteristics suitable for this product. The use of a fuse
with a different rating or one that short circuits the fuse
holder may result in fire, electric shock, or irreparable
damage.
□ AC power cable
The product is porvided with AC power cables described below. If the cable has no power plug,
attach a power plug or crimp-style terminals to the cable in accordance with the wire colors
specified in the drawing.
WARNING iiiiiiiiiiM^^
• The attachment of a power plug or crimp-style terminals
must be carried out by qualified personnel.
□ Without a power plug
Blue (NEUTRAL)
Brown (LIVE)_
Green/Yellow (GND)
□ Without a power plug
White (NEUTRAL)
Black (LIVE)_
Green or Green/Yellow (GND)
□ Provided by Kikusui agents
Kikusui agents can provide you with suitable AC power cable.
For further information, contact your Kikusui agent.
□ Another Cable
© 1998 Kikusui Electronics Corporation Kikusui Part No. Z9-000-027 IB001681
KIKUSUI

TABLE OF CONTENTS
PAGE
1. GENERAL .... x
1.1 Description .... ^
1.2 Features ..... 1
2. SPECIFICATIONS . 5
3. PRECAUTIONS BEFORE OPERATING THE OSCILLOSCOPE ; ...... 13
3.1 Unpacking the Oscilloscope .. 13
3.2 Checking the AC Line Voltage .. 13
3.3 Environments . 13
3.4 CRT Intensity .. 14
3.5 Maximum Voltages of Input Terminals . 14
4. OPERATION METHOD . 15
4.1 Explanation of Front Panel .. 15
4.2 Explanation of Rear Panel .. 22
4.3 Basic Operation .... 26
4.4 Vertical "MULTI MODE" Switches . 28
4.5 CH3 HOR Operation . 30 '
4.6 Triggering .. 31
4.7 Single-sweep Operation .. 40
4.8 Sweep Magnification .. 41
4.9 Waveform Magnification with Delayed Sweep . 42
4.10 Delayed ALT Sweep . 42
5. MEASURING . 45
5.1 Connection Method of Input Signal . 46
5.2 Voltage Measurement . 49
5.3 Current Measurement . 50
5.4 Time Measurement .. 51
5.5 Frequency Measurement . 51
5.6 Measurement of Phase Difference . 53
5.7 Characteristics of Pulse Waveform . 54
5.8 Calibration of Probe . 57
* BLOCK DIAGRAM

1 . GENERAL
1.1 Description
Kikusui "5000 Series" Model COS5060 Oscilloscope responds to the
customers needs in quality of performance, efficiency, function,
design, and cost.
The COS5060 oscilloscope is fugged, highly reliable and a multi¬
purpose 3-channel 8-trace portable oscilloscope with a 6-inch Domed-
mesh type 12 kV post deflection acceleration cathode-ray tube and
with fine red internal graticule.
The vertical axis has a maximum sensitivity of 1 mV/DIV, a frequency
response of up to 60 MHz -3dB, and a maximum sweep speed of 5 ns/DIV.
A waveform magnification function with sweep delay is incorporated for
real A, B dual time-base, therefore, this scope has many convenient
features and specal functions which make it an ideal instrument for
diversified types of research and development of electronic equipment
or circuitry. It can also be efficiently used in production line
maintenance and service applications. The features of the COS5060
Oscilloscope can be summarized as follows.
1.2 Features
(1) Compactness, light-weight, ruggedness and simple-design:
The diecast frame provides compactness light-weight and rugged¬
ness. The superior structural design is the ultimate in simpli¬
city.
(2) Ease of operation:
Light torque lever switches and pushbutton switches are used.
These and other controls are laid out in the most convenient
locations making the oscilloscope extremely easy to operate.
- 1 -

(3) High-brightness CRT, high acceleration voltage. (12 kV):
The high acceleration voltage and high beam-efficiency of
the 80 mm x 100 mm rectangular CRT ensures a bright trace for
high speed sweep observation,
(4) Multi-mode display system:
CHI. CH2. ADD. CH3 (trigger view) any combination or all the
channels may be viewed simultaneously with a simple adjustment
of the MULTI-MODE display buttons. Maximum 8 trace displaying is
possible with the ALT sweep function.
(5) Dynamic bias circuitry (PAT. PEND):
The energy-saving design makes use. of automatic electric power
consumption control circuitry so that, when the indicated signal
waveforms are small or the frequency components are low opera¬
tions. are performed with minimum use of electricity,
(6) High stability and low-drift:
The new circuits are desinged and adopted with a temperature drift-
compensation circuitry for minimizing any kind of drift and stable
DC balance.
(7) High sensitivity and wide frequency bandwidth:
The maximum vertical sensitivity is 1 mV/DIV (with 5 xMAG) 20 MHz
or greater -3 dB and 5 roV/DIV at 60 MHz or greater -3 dB„
(8) High input impedance:
The input impedance of CHI, CH2, CH3 (trigger view) is 1 Mft ±1%,
25 pF ±2 pF, allowing the use of 10x probes.
(9) "VERT MODE" TRIGGER FUNCTION:
When in the VERT MODE trigger mode, stable triggering can be
attained even when the signals of CHI, CH2 are not time related.
2

(10) Maximum sweep speed 5 ns/DIV:
With xlOMAG function the highest sweep speed of 50 ns/DIV can
be multiplied by a factor of 10 to a attain a maximum sweep
speed of 5 ns/DIV.
(11) Alternate sweep:
The A sweep and the delayed sweep can be viewed simultaneously
in the alternate mode,
(12) 2 channel X-Y operation:
CH3 may be used as EXT HORIZ input allowing CHI and CH2 to be
used as vertical inputs for DUAL channel X-Y displays.
(13) Trigger level lock:
A new trigger level lock circuit which controls the trigger
signal and performs automatic adjustments of the trigger level,
even for VIDEO signals and signals of large duty cycles. This is
an operation step-saver which eliminates the need for manual
trigger level adjustment,
(14) TV sync, triggering:
The C0S5060 has a sync separator circuit, which allows trigger¬
ing for TV.V signal and TV..H signal. It is automatically switched
with the TIME/DIV control.
(15) Variable holdoff function:
Digital and other signals with complex repeating periods which
resist triggering can be stably triggered with a simple adjust¬
ment of the hold off level.
(16) Linear focus:
Once the beam focus is adjusted, it is automatically maintained
in this state regardless of changes in intensity.
- 3 -

(17) CHI signal output:
The CHI signal output allows connection to frequency counters
and other devices at all levels.
- 4 -

Vertical axes
2. SPECIFICATIONS
ffll and CH2
Sensitivity
Sensitivity
accuracy
Variable
vertical
sensitivity
Frequency
bandwidth
Input coupling
Input impedance
Allowable
input voltage
Square wave
characteristics
Sensitivity
Sensitivity
accuracy
Frequency
bandwidth
Specification
Remarks
5 mV/DIV - 5 V/DIV
1 mV/DIV - 1 V/DIV
(when x5 MAG)
1-2-5 sequence,
10 positions
±3%
±5% (when x5 MAG)
10 to 35°C
(50 to 95°F),
1 kHz, at 4 or 5 DIV
To 1/2.5 or less of
panel-indicated value
DC - 60 MHz (-3 dB)
DC - 20 MHz (-3 dB),
when *5 MAG
AC coupling: Low limit
frequency 10 Hz
With reference to
50 kHz, 8 DIV.
AC, DC, GND
1 Mft ±1%, 25 P F ±2 pF
400 V (DC + AC peak)
Frequency 1 kHz or
lower
Overshoot: Not greater
than 5% (at 10 mV/DIV
range)
Other distortions: Not
greater than 3%
(at 10 mV/DIV range)
Other ranges:
Add 3%
VARIABLE knob is
CAL’D position.
10 to 35°C
(50 to 95°F)
EXT input terminal used in
common.
0.1.V, 1 V/DIV
±3%
10 to 35°C
(50 to 95°F),at 8 DIV
DC - 60 MHz (-3 dB)
AC coupling: Low limit
frequency 10 Hz
With reference to
50 kHz, 8 DIV.

Item
Specification
Remark
Input coupling
AC, HF REJ, TV, DC
Allowable
input voltage
100 V (DC + AC peak)
Frequency 1 kHz
or lower
Square wave
characteristics
Overshoot: Not greater
than 10%
Other distortions: Not
greater than 5%
10 to 35°C
(50 to 95°F)
Rise time
Approx. 6 nsec
(Approx, 17,5 nsec when
*5 HAG)
Signal delay time
Approx. 40 nsec (with
delay cable of approx,
120 nsec)
The displayed
portion preceding
the triggering point
Delay time
differences among
channels
Not greater than ±0.5 nsec
among CHI, CH2 and among
another channel ±2,Q nsec
Polarity change
CH2 only
DC balance shift
±0,5 DIV
(±2,0 Diy when in *5 MAG)
Display modes
Simultaneous displays of
CHI, ADD (CHI + CH2), CH2,
CH3 are possible in any
combination,
ALT, CHOP: Switchable
X-Y: TIHE/DIV switch
change. to|x~Y|CH3 H0R|
and SOURCE switch, to
Simultaneous X-Y
displays of CHI,
CH2, ADD and CH3,
at CHOP MODE
Chopping repetition
frequency
1 MHz/ number of displayed
channels ±40%
Common mode
rejection ratio
50:1 or better at 5Q kHz,
sinusoidal wave.
When sensitivities
of CHI and CH2 are
set equal
CHI
signal output
Approx. 50 my/DIV at
50^ termination
Approx. 100 mV/DIV
at open
CH2 INV BAL
Balanced point.
Not greater than 1 DIV
Reference at center
graticule
6 -

Isolation between
channeIs
Linearity-
Specification
At least 1000:1 at 50 kHz
At least 30:1 at 60 MHz
Within ±0.1 DIV when signal
with 2 DIV amplitude in
screen center is moved to
upper or lower.
At 5 mV/DIV range
■
I
Triggering
Internal trigger
selection
(INT TRIG)
Specification
CHI, CH2 and "VERT MODE"
(Trigger source is selected
depending on the vertical
operation mode.)
When in ADD, the CHI input
signal is used at the
trigger source signal.
VERT MODE function
works in ALT sweep
MODE between CHs
and single CH alone
operation
A trigger
Signal source
Coupling
INT, LINE, EXT, EXT/10
AC, HF REJ, TV, DC
Polarity
Sensitivity
DC - 10 MHz: 0,4 DIV (0.04 V)
10 - 60 MHz: 1,5 DIV (0.15 V)
Video signal: 2.0 DIV (0.2 V)
I AC coupling: \
/ Attenuates signal \
I components of lower I
than 10 Hz.
The values enclosed
in the parenthese
are the input sensi¬
tivities when in the
EXT trigger mode.
Attenuates signal
components of higher
than 50 kHz,
B trigger
Signal source
B trigger source is A
trigger source.

Item
Specification
Remarks
EXT trigger input
CH3 input terminal used in
common
Input impedance
1 Mfl ±2%, 25 pF ±2 pF
Maximum allowa¬
ble input
voltage
100 V (DC + AC peak)
Frequency 1 kHz
or lower
AUTO mode
Satisfies the trigger
sensitivity specification
for signal repetition
frequency of 50 Hz or over.
LEVEL LOCK
Satisfies the value of the
above trigger sensitivity
plus 0.5 DIV (0.05 V) for
signal of duty cycle 20:80
and repetition frequency
50 Hz - 50 MHz.
Horizontal axis
Item
Specification Remarks
Horizontal axis
display
A, ALT (A INT), B (DLY'D)
A sweep
Sweep mode
AUTO, NORM, SINGLE
Sweep time 0.05 psec/DIV - 0.5 sec/DIV
5 nsec/DIV - 50 msec/DIV
(when in "xlO MAG")
1-2-5 sequence,
22 positions
Sweep time
accuracy
±3% 10 to 30°C
(50 to 95°F)
Variable
sweep time
To 1/2.5 or slower of
panel-indicated value
Holdoff time
Continuously variable to 2
times or over of sweep
length (time) at 0.05 psec/
DIV - 10 msec/DIV ranges
- 8 -

Delay system
Sweep time
Sweep time
accuracy
Delay time
Delay time
accuracy
Delay jitter
Sweep magnification
Magnified
sweep time
accuracy
Specification
Continuous delay or
triggered delay
0.05 jisec/DIV - 50 msec/DIV
5 nsec/DIV - 5 msec/DIV
(when in "X10 MAG")
0.5 ysec - 5 sec
±3% of multidial-indicated
value (except 0 - 0.50)
±4% of value read on graticule
1/10,000 or less
B sweep time x jitter width
A sweep time 10 DIV
10 times (maximum sweep
time 5 nsec/DIV)
0.1 ysec/DIV - 0.5 sec/DIV
ranges: ±5%
0.05 jisee/DIV range: +8%
I
1-2-5 sequence,
19 positions
10 to 35°C
(50 to 95°F)
Jitter width 1.0
DIV or less at
A: 1 msec/DIV
B: 1 ysec/DIV
Both A and B
10 to 35°C
(50 to 95°F)
Linearity
CH3 sweep
(CH3 HOR)
±5% (when in "xlO MAG)
CH3 (EXT TRIG) input signal is
used as sweep trigger signal.
( F or vertical axes, any
combination of CHI, ADD
(CHI + CH2), CH2, and CH3
can be simultaneously
displayed in CHOP mode. /
Sensitivity
0.1 V, 1 V/DIV
Same as CH3
Sensitivity
accuracy
±3%
Same as CH3

Item
Specification
Remarks
Frequency
bandwidth
DC - 2 MHz (-3 dB)
With reference to
50 kHz, 10 DIV
Phase difference
between vertical
axes
Not greater than 3° at
DC - 100 kHz
X-Y mode
X-axis: CHI input signal
Y-axis: CH2 input signal
Sensitivity
5 mV - 5 V/DIV
Same as CHI
Sensitivity
accuracy
±4% NORM
±5% (when in "xlO MAG")
10 to 35°C
(50 to 95°F),
1 kHz, at 4 or 5 DIV
Frequency
bandwidth
DC - 2 MHz (-3 dB)
AC coupling: Low limit
frequency 10 Hz
With reference to
50 kHz, 10 DIV
X-T phase
difference
Nor greater than 3 s at
DC - 100 kHz
Z axis
Item
Specification
Remarks
Sensitivity 3
Vp-p
(Trace becomes brighter
with negative input.)
Frequency
bandwidth
DC - 5 MHz.
Input resistance
5 kft ±10%
Allowable input
voltage
50 Vp-p (DC + AC peak)
AC: 1 kHz or lower

Calibration voltage
Item
Specification
Remarks
Waveform
Positive-going square wave
Frequency
1 kHz ±5%
Duty ratio
Within 45:55
Output voltage 2
Vp-p, ±2%
Output resistance
Approx. 2 kH
CRT
Item
Specification
Remarks
Type
6-inch rectangular CRT,
internal graticule
Fluorescent
screen
P31 phosphor
■ iMMi—
Acceleration
voltage
Approx. 12 kV
Effective
screen size
8 X 10 DIV
Graticule
Internal graticule, continu¬
ously adjustable illumination
Mechanical specifications
Item
Specification Remarks
Dimensions of
mainframe
280 W X 150 H X 370 D mm
(11.02 W X 5.91 H X 14.56 D in.)
Maximum
dimensions
340 W x 200 H x 455 D mm
(13.39 W x 7.87 H x 17.91 D in.)
Weight Approx. 7.0 kg (15.4 lbs)

g Line power requirements
Voltage: 100 V, 115 V, 215 V, 230 V; with 10% allowance.
Selectable by connector change
Frequency: 50 Hz or 60 Hz
Wattage: Approx. 40 VA
o Operating environment
To satisfy specifications: 5 to 35°C (41 to 95°F),
85% RH
Maximum operating ranges: 0 to 40°C (32 to 104°F),
90% RH
o Accessories
P060-S probes ( 1 0 : 1 , 1 : 1 , 1.5m) . (89-03-0300) ... 2
942A terminal adaptors .. (W 7 4-986-011) ... 3
Fuse (1 A or 0.5 A) . (99-02-0100) ... 1
(99-02-0101)
Power cord . (85-10-0120) ... 1
Instruction manual ..... ( ) ^ ^ > j
o Specifications and contents on this manual are subject to change
without notice.

3. PRECAUTIONS BEFORE OPERATING THE OSCILLOSCOPE
3.1 Unpacking the Oscilloscope:
Upon receipt of the instrument, please unpack and inspect it for
any damage which might have been sustained during transportation.
If any sign of damage is found, please notify the bearer or the
dealer.
3.2 Checking the AC Line Voltage:
This instrument can be operated on any one of the AC line voltages
shown in the following table. The required voltage can be selected
by means of the voltage selector plug. Before operating the instru¬
ment, ensure that the AC line voltage setting of the instrument
conforms with the voltage of the AC line on which the instrument is
to be operated. If the instrument voltage does not conform with the
line voltage, the instrument may not operate, normally or may be perma¬
nently damaged.
When the instrument AC line voltage is changed, change the fuse by
referring to the following table.
The normal ambient temperature range of this instrument is 5°C -
35°C (41°F - 95°F). Operation of the instrument outside of this
temperature range may cause damage to the circuits.
13 -

3.4 CRT Intensity:
In order to prevent permanent damage to the CRT, do not make the
CRT trace excessively bright or leave the spot stationary for more
than a few moments.
3.5 Maximum Voltages of Input Terminals:
The withstanding voltages of the instrumints input terminals and
probe input terminals are shown in the following table. Do not
apply voltages higher than these limits.
CHI, CH2 inputs
400 Vp-p (DC + AC peak)
Probe input
600 Vp-p (DC + AC peak)
CH3 input
100 Vp-p (DC + AC peak)
Z AXIS input
50 Vp-p (DC + AC peak)
Note: AC frequency is 1 kHz or below.
- 14 -

4. OPERATING
4.1 Explanation of Front
o CRT circuits:
POWER ..
INTEN .
B INTEN .
FOCUS .
ILLUM .
TRACE ROTATION .
o Calibration Voltage:
CALIB 2 Vp-p .
o Vertical Axis:
CHI (X) input .
IM'O 25pF
CH2 (Y) input
GND
Panel (See Figure 4-1.)
© Main power switch of the instrument.
When this switch is turned on, lamp
(39) is also turned on.
© Controls the brightness of the spot
or trace.
( 5 ) Semi-fixed potentiometer for adjusting
the intensified sweep or B sweep
brightness.
© For focussing the trace to the sharpest
image.
©
©
Graticule illumination adjustment.
Semi-fixed potentiometer for aligning
the horizontal trace in parallel with
graticule lines.
@ Terminal for 2 Vp-p calibration voltage
output. Output resistance is approxi¬
mately 2 Id?.
® Vertical input terminal of CHI.
When in X-Y operation, X axis (abscissa)
input terminal.
© Vertical input terminal of CH2,
When in X-Y operation, Y axis (ordinate)
input terminal,
@ Ground terminal of instrument
- 15 -

AC-GND-DC
© ©
Switch for selecting connection mode
between input signal and vertical
amplifier.
AC: AC coupling
GND: Vertical amplifier input is
grounded and input terminals
are disconnected.
DC: DC coupling
VOLTS/DIV ........ @ (L3)
VARIABLE
VOLTS/DIV
© @
© ©
| POSITION ._ (D ©
Selects the vertical axis sensitivity,
from 5 mV/DIV to 5 V/DIV with 10 ranges.
Fine adjustment of sensitivity, with
a factor of 1/2.5 or over the panel-
indicated value. When in the CAL'D
position, sensitivity is calibrated
to the panel-indicated value.
When this knob is pulled out, the
sensitivity of the vertical amplifier
is multiplied by 5 times.
Vertical position control of the trace
or spot.
CH2 PULL INV ...
© ©
VERT MODE .
(MULTI MODE)
©
©
When this knob is pulled out, the
switch selects the polarity of the
signal applied to CH2 input terminal.
Selects the operation mode of the
vertical axis.
CHI: CHI operates alone.
CH2: CH2 operates alone.
_0_ALT: Dual-channel operation with
CHI and CH2 swept alternately.
Suitable for observation with
fast sweep speeds.
- 16 -

INT TRIG
-a-CHOP: The operation between channels
chopped at a frequency of
approximately 1 MHz/number of
displayed channels. Suitable
for observation with slow sweep
speeds.
ADD: For measurement-of algebraic
sum or difference of CHI and
CH2 signals, employing the
function of CH2 PULL INV switch.
CH3: By depressing the CH3 button and
SOUlvCE switch (2J) is positioned
to INT. It is possible to look at
TRIG VIEW.
SOURCE switch (2J) is positioned
to EXT (CH3) or EXT - 10). It is
possible to observe the EXT input
signal of CH3 input terminal.
@ Selects the internal trigger signal
s-onrce. The signal selected hy this
switch is fed to the A trigger circuit
if SOURCE switch (2^) is set in the INT
state,
CHI: The input signal of CHI is used as
• (X-Y) the trigger signal and the signal
is connected to the X axis during
X-Y operation.
VERT MODE: The input signal which is dis¬
played on the CRT screen is used as
the trigger signal. When in this
mode, triggering also is in an alter¬
nate mode and the signals of both CHI
and CH2 are alternately used for
triggering respective channels.
NOTICE: It is necessary to use TRIG LEVEL
knob (2j) to adjust the level
for obtaining the best triggering.
- 17 -