Metrix OX 832 User Manual

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OX 832
30 MHz-DIFFERENTIAL
OSCILLOSCOPE
Copyright ©
906121641 - Ed. 3 - 04/00
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CONTENTS
1. GENERAL INSTRUCTIONS....................................................................................................... 3
1.1. Safety precautions................................................................................................................ 3
1.1.1. Before use ..................................................................................................................... 3
1.1.2. During use ..................................................................................................................... 3
1.1.3. Symbols......................................................................................................................... 4
1.1.4. Instructions .................................................................................................................... 4
1.2. Guarantee ............................................................................................................................ 4
1.3. Maintenance and metrological verification............................................................................ 4
1.4. Servicing .............................................................................................................................. 4
2. INSTRUMENT DESCRIPTION ................................................................................................... 5
2.1. Front panel description ......................................................................................................... 7
2.2. Rear panel description.......................................................................................................... 8
3. GETTING STARTED .................................................................................................................. 9
3.1. AUTOSET ............................................................................................................................ 9
3.2. Vertical channels ................................................................................................................ 11
3.3. Display modes.................................................................................................................... 12
3.4. Timebase ........................................................................................................................... 13
3.5. Trigger................................................................................................................................ 13
3.6. Trigger delay (DELAY) ....................................................................................................... 15
4. APPLICATIONS ....................................................................................................................... 17
4.1. Visualisation of the calibration signal.................................................................................. 17
4.2. Measurement of amplitude and frequency.......................................................................... 17
5. SPECIFICATIONS.................................................................................................................... 18
5.1. Vertical deflection ............................................................................................................... 18
5.2. Horizontal deflection........................................................................................................... 19
5.3. Trigger system ................................................................................................................... 19
5.3.1. Trigger delay coefficient............................................................................................... 20
5.4. AUTOSET function............................................................................................................. 20
5.4.1. AUTOSET specifications ............................................................................................. 20
5.5. General characteristics....................................................................................................... 21
6. SUPPLIES AND OPTIONS....................................................................................................... 22
6.1. Accessories........................................................................................................................ 22
6.1.1. Provided with the apparatus......................................................................................... 22
6.1.2. Provided as options ..................................................................................................... 22
6.2. Options............................................................................................................................... 22
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30 MHz-differential oscilloscope
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It is located inside
1. GENERAL INSTRUCTIONS
You have just purchased a 30 MHz-differential oscilloscope; we congratulate you on your choice of this high quality product.
This apparatus complies with IEC safety standard 61010-1 +A1 +A2 (1995) single insulation, dealing with electronic measurement instruments. Please read these instructions carefully and respect the usage precautions, in order to obtain the best use from it. Failure to respect warnings and / or usage instructions may damage the apparatus and / or its components and may be dangerous to the user.
1.1. Safety precautions
1.1.1. Before use
- This instrument was designed for use indoors in an environment with a degree of pollution 2 at an elevation of less than 2000 m, a temperature between 0°C and 40°C, and a relative humidity of 80 % up to 31°C.
- It can be used for measurements on 300 V category III and 600 V CAT II (inputs) installations and can be supplied by a 253 V CAT III network.
- Definition of installation categories (see publication IEC 664-1):
CAT I : CAT I circuits are protected by devices limiting transient overvoltages to a
low level.
Example: protected electronic circuits
CAT II : CAT II circuits are power supply circuits for domestic or digital devices that
may include transient overvoltages with an average value.
Example: power supply for household appliances and portable tools.
CAT III : CAT III circuits are power supply circuits for power equipment that may
include large transient overvoltages.
Example: power supply for industrial machines or equipment
CAT IV : CAT IV circuits may include very high transient overvoltages. Example: energy arrivals
- Depending on the position of the fuse on the basic board, this instrument may be powered by a 110 VAC or 230 VAC ± 10 % network. Before connecting up the instrument, check that the fuse position matches the rated voltage of your distribution network. To do this, remove the top cover from the oscilloscope.
The replacement fuse must be identical to the original fuse. the apparatus in a housing on the cathode ray tube support part.
- Earth all metallic parts that are accessible to touch (including the working table).
- You are advised to use the accessories delivered with the instrument or proposed as options. Check that they are in perfect working condition before use.
- Plug the cable into a socket fitted with an earth connection.
1.1.2. During use
- Select vertical sensitivity and timebase ranges adapted to the measurement.
When carrying out a measurement, never touch an unused terminal of the instrument.
30 MHz-differential oscilloscope
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1.1.3. Symbols
Refer to the user's manual. Incorrect use may result in damage to the device or its components.
Risk of electric shock
Ground
1.1.4. Instructions
- Before opening the apparatus, always disconnect it from the mains power supply and measurement circuits, and make sure that you are not charged with static electricity which could damage internal components.
- Any repair, maintenance or adjustment of the oscilloscope when it is powered may only be done by qualified personnel, after reading the instructions in this manual.
- A "qualified person" is a person who is familiar with the installation, construction and use and the dangers present. He is authorized to switch the installation and equipment on and off in accordance with the safety rules.
- Take care not to obstruct ventilation holes when using the apparatus.
Some internal capacitors may retain a dangerous potential, even after the apparatus has been switched off.
1.2. Guarantee
This oscilloscope is guaranteed against any material defect or manufacturing vice in accordance with the general conditions of sale.
During the guarantee period (2 years), the apparatus may only be repaired by the manufac-turer, and the manufacturer will be free to decide to repair or replace all or part of the apparatus. The guarantee conditions state that the manufacturer will pay for return transport. The guarantee is not applicable in the following cases:
1. any improper use of the equipment or if it is used in association with incompatible
equipment;
2. modification of the equipment without explicit authorization by the manufacturer’s
technical departments;
3. work done by a person not approved by the manufacturer;
4. adaptation to a specific application not included in the definition of the equipment
or by the operating instructions;
5. a shock, drop or flooding.
1.3. Maintenance and metrological verification
Return your instrument to your distributor for any work to be done within or outside the guarantee.
1.4. Servicing
Clean the instrument with a wet cloth and soap. Never use abrasive products or
solvents.
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30 MHz-differential oscilloscope
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2. INSTRUMENT DESCRIPTION
+
This instrument is a 30 MHz portable differential oscilloscope with AUTOSET. Its technology has been designed to satisfy the most demanding users. It is intended for electrotechnicians and electronics experts (operation in normal or differential mode).
This oscilloscope's inputs can operate in both traditional and differential mode (independent switching accessible on the front):
in traditional mode
Inputs CH1+ and CH2+ are active.
Inputs CH1- and CH2- are inhibited internally, but the impedance as seen from the input
The voltage common to the 2 inputs (CH1+, CH1-) or (CH2+, CH2-) is called the
common mode voltage Vcm.
remains constant.
in differential mode
Inputs CH1+ CH1- and CH2+ CH2- are active.
The signal displays corresponds to the difference between the signals present on
inputs CH 1+ and CH1- (and/or CH2+ and CH2-).
The peak common mode voltage max. Vcm depends on the calibre selected:
CH1+ CH2
20 V for sensitivities from 10 mV to 0.5 V
200 V for sensitivities from 1 V to 5 V
600 V for sensitivities from 10 V to 200 V/div.
Vdiff
Vcm
ou
CH1- CH2-
The representation of the signal on the screen may be erroneous when the max.
common mode voltage authorized for the calibre selected is exceeded.
Performance of the oscilloscope
2 channels at 30 MHz
High input dynamic: 10 mV to 200 V/div. (14 calibres)
Triggering up to 50 MHz
Trigger delay function
The AUTOSET function automatically searches for the vertical sensitivity and the
scanning coefficient adapted to the signal present on channels CH1 and CH2.
The front panel is managed by an 8-bit microcontroller with FLASH memory which handles the following tasks:
Reading of the absolute sensitivity and time base coders
Management of the LEDs
Configuration of the basic board by serial link
Management of communication with the PC via the RS232C link with the
HA1255 programming kit (optional)
Generation of the calibration signal
Saving of the instrument's configuration in EEPROM
30 MHz-differential oscilloscope
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
18
19
20
21
22
23
39 38 37 34 33 32 30 29 27 26 25
36 35 31 28
Figure 1 : Face avant
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30 MHz-differential oscilloscope
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2.1. Front panel description
1 -
FOCUS
focus adjustment
2 -
TRACE ROTATION
3 -
INTENSITY
4 -
VOLT/DIV
5 -
CH1 DIFF
6 -
POSITION 
7 -
MODE 
8 -
POSITION 
9 -
MODE 
10 -
VOLT/DIV
11 -
POSITION 
12 -
CH2 DIFF
13 -
HOLDOFF
14 -
P-P
15 -
LEVEL
16 -
x 10
17 -
VAR
18 -
adjustment of the horizontal trace alignment
adjustment of the trace brightness
selection of the vertical sensitivity for CH1
switching to normal or differential operating mode of CH1 channel
adjustment of the vertical position of CH1 trace
right/left scroll of vertical modes
adjustment of the horizontal position of CH1 or CH2 trace
left/right scroll of vertical modes
selection of the vertical sensitivity for CH2
adjustment of the vertical position of CH2 trace
switching to normal or differential operating mode of CH2 channel
adjustment of HOLDOFF TIME (sweep holdoff)
activation of peak-to-peak trigger mode
adjustment of trigger level
expansion by 10 of the horizontal sweep coefficient
continuous adjustment of sweep coefficient of timebase
activation of positive or negative trigger slope
19 -
AUTO
20 -
T/DIV
21 -
SOURCE 
22 -
SOURCE 
23 -
COUPLING 
24 -
COUPLING 
25 -
EXT +
26 -
EXT -
27 -
DELAY
28 -
S / DLY
29 -
CH2 +
30 -
VAR
31 -
COUPLING
32 -
CH2 -
33 -
PROBE ADJUST
34 -
CH1 +
35 -
COUPLING
activation of AUTO or triggered sweep mode
selection of the sweep coefficient of timebase
right/left scroll of trigger sources
left/right scroll of trigger sources
left/right scroll of trigger sources
right/left scroll of trigger sources
external trigger + input
external trigger - input
adjustment trigger delay of timebase
selection of SEARCH ou DLY (delayed) sweep modes
CH2 channel input
continuous adjustment of the CH2 vertical sensitivity
selection of CH2 channel coupling or measurements on CH2
CH2 channel - input
calibration output
CH1 channel + input
selection of CH1 channel coupling or measurements on CH1
36 -
VAR
37 -
CH1 -
38 -
AUTOSET/ABORT
39 -
POWER
continuous adjustment of the CH1 vertical sensitivity
CH1 channel - input
activation/deactivation of the AUTOSET function
ON/OFF key
30 MHz-differential oscilloscope
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2.2. Rear panel description
42 45 40 41 43 42
44
Figure 2
(40) Location of the optional HA1255 PROGRAMMING KIT connector
This RS232C serial link (40) establishes the communication between the oscilloscope and a PC or compatible computer. It enables :
- the remote programming of the oscilloscope
- the reading of the oscilloscope configuration
(41) Mains plug
(42) Cord winders
(43) Mains plug location when carrying the oscilloscope
(44) Fuse label
(45) Z Modulation
Input BNC at the back Sensitivity TTL level High level on Low level off Max. frequency 4 MHz Input resistance approx. 2 k Max. voltage ± 20 V
DC
30 MHz-differential oscilloscope
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3. GETTING STARTED
Respect the safety instructions indicated in Chapter 1.
- the thickness of thetraces with the FOCUS potentiometer (1),
- the horizontalness of the traces with the potentiometer to be reached through the TRACE ROTATION hole (2).
3.1. AUTOSET
- Position the rotary controls as indicated in the figure 1.
- Press the POWER key (39): the last memorised configuration of the front panel is restored.
- Validate the AUTO key (19).
- Adjust : - brightness with the INTENSITY potentiometer (3),
Adjust the brightness of the trace according to ambient lighting. Excessive
brightness can damage the tube, particularly when there is no sweeping in process (spot stationary).
- Apply the signal to be displayed to channel CH1 or CH2.
- Press on the AUTOSET key (3) .
- When using a 1/10 probe, use the PROBE ADJUST signal (33) (2.5 V, 1 kHz) to adjust the probe compensation (refer to § 4. APPLICATIONS).
AUTOSET automatically carries out the following searches:
active channel, vertical sensitivity, horizontal deflection coefficient, trigger slope.
AUTOSET automatically puts the oscilloscope into the following configuration:
synchro PTP, AC coupling of the connected channel, horizontal magnitude x 1, DC coupling of the trigger source.
AUTOSET does not affect : POSITION (H and V), VAR, DELAY, INTENSITY.
The AUTOSET function is activated by pressing the AUTOSET/ABORT key (38) (key only active while pressed):
- The AUTOSET/ABORT LED remains on during the search phase.
- When the search phase ends, if the calibres found by the AUTOSET function are
different from those indicated by the vertical sensitivity and time base switches, the AUTOSET/ABORT LED flashes.
- There are two ways of quitting the AUTOSET function:
Manual search for the ranges found by AUTOSET:
You search for the AUTOSET ranges by turning the (4) and/or (10) sensitivity and
(20) time base switches in the direction indicated by the coupling or trigger-source LED which is flashing.
The AUTOSET LED goes out when all the ranges determined by the AUTOSET
have been found.
Pressing the AUTOSET/ABORT key (38) again will cancel the AUTOSET function.
Vertical adjustment is not set by the AUTOSET. You should ensure that position (6)
and (11) rotary controls are correctly centred
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4 5 6 7 8 9 11
3
12
2
10
1
36
33
30
38
37 35 34 32 31 29
Figure 3
30 MHz-differential oscilloscope
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3.2. Vertical channels
Refer to figure 3.
(6) - (11) POSITION - Vertical centring of the CH1 (6) and CH2 (11) traces.
(8) POSITION - Horizontal centring of the traces. This command acts simultaneously on CH1 and CH2.
(4) - (10) VOLT/DIV - CH1 (4) and CH2 (10) vertical sensitivity : 14 positions (10 mV to 200 V/div.).
(36) - (30) VAR - Continuous adjustment of CH1 (36) and CH2 (30) vertical sensitivity.
When the knob is locked in the left-hand position, the corresponding UNCAL indicator light is out.
(31) - (35) AC - DC - GND
Selection using the (31) key for the CH2 channel and (35) for the CH1 channel :
Visualisation of the AC component (deletion of the
AC DC GND
DC component).
Visualisation of the full signal
AC DC GND
Coupling of the channel to earth (without short-circuiting the
AC DC GND
input signal). Enables accurate positioning of the trace on the screen using the POSITION controls (6) and (11).
(34) - (37) CH1+ CH1- + and - inputs of signals to be observed on BNC sockets of
channel 1.
(29) - (32) CH2+ CH2- + and - inputs of signals to be observed on BNC sockets of
channel 2.
30 MHz-differential oscilloscope
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channel passes from CH1 to CH2 at the chopper frequency
3.3. Display modes
Refer to figure 3.
(5) CH1 DIFF - Switch of channel CH1 to normal/differential mode. In normal mode - LED not lit - the display corresponds to the signal
CH1
DIFF
present on channel CH1+. In differential mode - LED lit - the display corresponds to the difference between the signals present on channel CH1+ and CH1-.
(7) - (9) CH1 - ALT - CHOP - ADD - CH2
Selection using the (7) or (9) key:
Display of CH1 only.
CH1 ALT CHOP ADD CH2
Display of CH1 and CH2 in alternate mode.
CH1 ALT CHOP ADD CH2
Display of CH1 and CH2 in chopper mode; during one sweep the
CH1 ALT CHOP ADD CH2
(200 kHz approximately).
Display of the sum of CH1 and CH2.
CH1 ALT CHOP ADD CH2
Display of CH2 only.
CH1 ALT CHOP ADD CH2
(20) XY Mode
Select by switching the XY timebase knob (20). In this mode : CH1 is the X horizontal input CH2 is the Y vertical input.
(12) CH2 DIFF - Switch of channel CH2 to normal/differential mode.
CH2
DIFF
In normal mode - LED not lit - the display corresponds to the
signal present on channel CH2+. In differential mode - LED lit - the display corresponds to the difference between the signals present on channel CH2+ and CH2-.
30 MHz-differential oscilloscope
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The
trigger source coupling command is inoperative (LEDs
3.4. Timebase
(20) T/DIV - Sweep coefficient selection : 18 positions (0.5 µs to 200 ms/div.)
(17) VAR - Continuous adjustment of the sweep coefficient of timebase When the knob is locked in the left-hand position, the UNCAL indicator is out.
(13) HOLDOFF - Continuous adjustment of the minimum time between two
In normal use the knob is locked in the left-hand position (click).
(16) x10 - Horizontal magnitude (x10).
This function is not active in XY mode (indicator out).
3.5. Trigger
(21) - (22) SOURCE - Select by pressing on the (22) or (21) keys:
Synchronisation by CH1.
CH1 CH2 ALT LINE EXT
Synchronisation by CH1.
CH1 CH2 ALT LINE EXT
Trigger source defined according to the display mode:
CH1 CH2 ALT LINE EXT
Display mode Trigger channel
Synchronisation by the frequency of the mains supply. The
CH1 CH2 ALT LINE EXT
(Refer to figure 4, next page).
successive sweeps. This control enables the holdoff of ill-timed triggering (multiple trigger conditions in the same period of the signal observed).
CH1 CH1 CH2 CH2
ALT channel 1 synchronised with CH1
channel 2 synchronised with CH2
CHOP CH1
ADD CH1
trigger point can be adjusted using the LEVEL control.
Synchronisation by the external source connected to the plugs
CH1 CH2 ALT LINE EXT
(19) AUTO - Automatic trigger of the timebase. Traces visible even in the absence of
a trigger event.
(15) LEVEL - Adjustment of the trigger level
The TRIG indicator lights up when a trigger event is detected.
(18) Trigger edge ()
Indicator lights up : trigger on the negative slope. Indicator off: trigger on the positive slope.
This function is not active in XY mode (indicator out).
(*) NB : When one of the TVH or TVV filters is activated, it is possible to trigger in positive video with a positive trigger slope or in negative video, with a negative trigger slope.
30 MHz-differential oscilloscope
coupling source off).
EXT- (26) and/or EXT+ (25) BNC's.
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13 16 15 18 17
14
27
21
28
19
20
22
23
24 26 25
30 MHz-differential oscilloscope
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Figure 4
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intensified part (equivalent to the
(26) - (25) EXT- EXT+ Input of the external synchronisation signal by the + and -
BNC sockets. (Refer to §. 5. SPECIFICATIONS).
(23) - (24) COUPLING - Coupling of the trigger source
This COUPLING function is inactive in XY mode (indicators out).
Select by pressing on the (23) or (24) key:
The filtering activated only acts on the trigger channel, not on the display.
DC coupling (0 to 40 MHz)
DC AC LF HF TVH TVV
AC coupling (10 Hz to 40 MHz)
DC AC LF HF TVH TVV
Rejection of source signal frequencies < 10 kHz
DC AC LF HF TVH TVV
(facilitates observation of signals with a DC component).
Rejection of source signal frequencies > 10 kHz
DC AC LF HF TVH TVV
(facilitates the observation of signals with HF-noise).
Trigger on the synchronisation pulse of the TV line
DC AC LF HF TVH TVV
(NB, page 13). Sweep coefficient recommended for the examination of a TV line: 0.5 µs at 20 µs/div.
DC AC LF HF TVH TVV
Trigger on the synchronisation pulse of the TV raster
(NB, page 13). Sweep coefficient recommended for the examination of a TV raster: 1 ms/div.
In TVH and TVV COUPLING, the P-P and LEVEL functions are inactive.
(14) P - P - Peak-to-peak trigger
The trigger reference (accurate adjustment by LEVEL) is automatically between
the low and the high peaks of the sinewave chosen, which guarantees the trigger irrespective of the amplitude or the DC component of the source signal (80% of the peak-to-peak amplitude of the sinewave for f = 100 Hz).
This COUPLING function is inactive in XY mode (indicators out). The use of
P-P triggering is not recommended on very low-frequency signals or pulsed signals of very short duration.
3.6. Trigger delay (DELAY)
This mode permits a portion of the signal to be examined in detail (at high sweep speed) after the trigger event chosen. The DELAY command (27) enables continuous adjustment of the delay (1 to 9 div.).
(28) DELAY- Select by pressing successively on key (28) :
S DLY
S DLY
Normal mode : The sweep starts immediately (trigger event at the far left of the trace).
SEARCH mode (S) : The plot(s) on the screen present an under­trigger delay) adjustable using the DELAY potentiometer (27).
S DLY
30 MHz-differential oscilloscope
DLY delayed mode (DLY mode): The sweep begins at the point corresponding to the end of the under­intensified zone in SEARCH mode.
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Figure 5 : Probe incorrectly compensated in low frequency
Figure 6 : Low frequency compensation correct
30 MHz-differential oscilloscope
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4. APPLICATIONS
4.1. Visualisation of the calibration signal
- Connect the PROBE output (33) to CH1 input (34) by using a 1/1 or 1/10 measurement probe.
- Select the following functions:
CH1 sensitivity (4) or CH2 (10): 0.1 V/div. (1/1); 10 mV/div. (1/10)
Sweep speed (20): 0.2 ms/div.
Trigger source (21) or (22): CH1 or CH2
Trigger mode (19) : AUTO
- If necessary, adjust vertically using the POSITION (6) or (11) control and stabilise the trace using the potentiometer LEVEL (15).
- Adjust the low-frequency compensation of the probe so that the impulse plateau is horizontal.
See figures 5 and 6.
To compensate, please refer to the instructions enclosed with the probe.
4.2. Measurement of amplitude and frequency
Amplitude and frequency might be measured from the PROBE output (33) whose specifications are the following :
Shape : rectangular
Amplitude : 0 to + 2.5 V ± 1 %
Frequency : 1 kHz ± 1 %
Duty cycle : ½
- Connect the PROBE output (33) to the CH1+ (35) or CH2+ (29) input by using a 1/1 or 1/10 measurement probe.
- Adjust CH1 or CH2 sensitivity to 20 mV/div. (if a 1/10 probe) and the timebase to 1 ms/div.
- Check that the amplitude of the visualised signal is equal to 2.5 divisions and that its period is equal to 1 division.
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5. SPECIFICATIONS
Only the values affected by tolerances or limits constitute guaranteed values (after half an hour's warming up). Values without tolerances are given for information.
5.1. Vertical deflection
CH1 - CH2 Specifications Comments
Characteristics
Bandwidth at - 3 dB
Risetime 10 % 90 % Accuracy of vertical deflection coefficients (sensitivity)
Max. peak voltage of common mode
Variable vertical deflection coefficients Input protection Protection againts transients 4 kV
Limitation of the F (frequency) level Focused trace thickness 50 mV to 200 V/div. < 1 mm
Chopping frequency (CHOP)
AC coupling cutoff frequency < 10 Hz Input impedance Response in rectangular signals
Crosstalk at 20 MHz 10 mV/div. to 50 mV/div. 30 dB typ.
Display modes
NORMAL / DIFF CH1
NORMAL / DIFF CH2
> 20 MHz on ranges 10 mV to 50 mV/div. > 30 MHz - 100 mV to 200 V/div. < 17 ns on ranges 10 mV to 50 mV/div. < 11.7 ns - 100 mV to 200 V/div.
Sensitivities : 10 mV to 200 V/div. ± 3 %
10 mV to 0.5 V/div. 20 V 1 V to 5 V/div. 200 V 10 V to 200 V/div. 600 V Multiplication of V/div. range by 1 to 2.5 (amplitude reduction)
(1.2 µs / 50 µs )
from 0 to 2 MHz 600 V peak from 2 to 30 MHz -2 dB/decade
10 mV and 20 mV/div. < 4 mm 200 kHz
1 M ± 1 % // 12 pF Overflow < 3 % Aberration at 100 mV/div. :
on the plateau < 1 mm
before the edge < 2 mm
100 mV/div. to 200 V/div. 36 dB typ.
CH1, ALT, CHOP, ADD, CH2, XY
CH1 the input -CH1 is inhibited in normal mode
CH2 the input -CH2 is inhibited in normal mode
measured on 6 divisions
signal 5 div.
14 positions, sequences 1-2-5
Calibrated position : control in left-hand position Inputs : 300 V CAT III 600 V CAT II
Square signal 1 kHz to 1 MHz 1 MHz (Tm gene < 100 ps)
Same sensitivity on CH1 and CH2, amplitude 6 div. ALT = alternate CHOP = chopped
CH1 channel switching in normal or differential mode
CH2 channel switching in normal or differential mode
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5.2. Horizontal deflection
Characteristics Specifications Comments
Sweep coefficients Accuracy on all ranges Expansion x 10 Accuracy : ± 5 %
Variable coefficient
Sweep disable time (HOLDOFF) XY mode Y bandwidth -3 dB
X bandwidth -3 dB derating
0.5 µs to 200 ms/div. ± 3 % i. e. 18 positions
Division of the s/div. range 1 to 2.5 approx.
Variable from 1 to 10 for each of the 18 ranges in
0 to 20 MHz on ranges 10 mV to 50 mV/div. 0 to 30 MHz - 100 mV to 200 V/div.
0 to 2 MHz ∆ϕ < 3° to 120 kHz
Sequences 1-2-5
used to obtain 20ns/div.
Calibrated position : control at left-hand stop (signal horizontal expansion)
the timebase
5.3. Trigger system Characteristics
CH1 / CH2 sensitivity
0 to 10 MHz 10 to 20 MHz 20 to 40 MHz
ALT Source depending on vertical
LINE Synchro to mains EXT sensitivity applicable min. amplitudes
0 to 10 MHz 10 to 20 MHz 20 to 40 MHz
Filters Bandwidth to -3 dB
TVH and TVV synchronisation on a video line (TVH)
Horizontal mode
Slope Falling edge Rising edge Level range
0.7 div. 1 div. 2 div.
100 mVpp 200 mVpp 400 mVpp
AC 10 Hz to 40 MHz
LF 10 kHz to 40 MHz
HF 0 to 10 kHz
or video frame (TVV )
AUTO
Normal
Normal ± 12 divisions
relaxéd mode Freq > 5 Hz
P-P 80 % of peak-peak amplitude of
sinusoidal signal F > 50 Hz
Specifications Comments
mode :
CH1 CH1 trigger ALT CH1 then CH2 trigger CHOP CH1 trigger ADD CH1 trigger CH2 CH2 trigger
Ze = 1 M // 12 pF
Protection against transients
4 kV (1.2 / 50 µs )
Common mode voltage 50 V peak max.
triggered mode
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5.3.1. Trigger delay coefficient
Scanning time range Delay range
5.4. AUTOSET function
Parameters searched for
by AUTOSET
Presence of a signal on channels CH1 and CH2 Vertical sensitivities adapted to the signals Time base range adapted to the signal INTENSITY AUTO scanning FOCUS
5.4.1. AUTOSET specifications
The AUTOSET function is activated by pressing the AUTOSET key; it automatically searches for the vertical sensitivity and the scanning coefficient adapted to the signal present on channels CH1 and/or CH2.
Signal search time approx. 5 seconds
Frequency range 25 Hz to 30 MHz
Min. amplitude 200 mV
• Αutomatic switch to CHOP for T/DIV between 200 ms and 1 ms/div.
(approx.)
0.5 µs/div. 0.5 µs to 5 µs 1 µs/div. 2 µs/div. 5 µs/div.
10 µs/div. 20 µs/div.
50 µs/div. 100 µs/div. 200 µs/div. 500 µs/div.
1 ms/div. 2 ms/div.
5 ms/div. 10 ms/div. 20 ms/div. 50 ms/div.
100 ms/div. 200 ms/div.
Configuration imposed
1 µs to 10 µs 2 µs to 20 µs
5 µs to 50 µs 10 µs to 100 µs 20 µs to 200 µs 50 µs to 0.5 ms
100 µs to 1 ms 200 µs to 2 ms 500 µs to 5 ms
1 ms to 10 ms 2 ms to 20 ms
5 ms to 50 ms 10 ms to 100 ms 20 ms to 200 ms 50 ms to 500 ms
100 ms to 1 s 100 ms to 2 s
Unchanged parameters
by AUTOSET
PTP synchro Horizontal and vertical position
AC coupling of the channel VAR
horizontal expansion
DELAY
coefficient: x1
30 MHz-differential oscilloscope
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5.5. General characteristics
Cathode ray ube
Tube mono-accelerator cathode-ray tube
Type rectangular with 13 cm diagonal internal graticule
Graticule 8 vertical divisions with 5 subdivisions 10 horizontal divisions with 5 subdivisions 1 division = 1 cm
Screen phosphor with average GY persistence
Trace adjustment of trace rotation
adjustment of focusing
adjustment of intensity of brightness
Total acceleration voltage 1.8 kV approx.
Contrast screen BLUE
Power supply
Mains two ranges (110 VAC - 230 VAC ± 10 %) which can be selected by
the position of the fuse on the main board
Frequency 50 to 60 Hz
Removable mains power cord
Winder with plug holder at the back of the instrument
Consumption 60 W maximum at 230 VAC, 50 Hz
Before connecting the instrument, check that its configuration corresponds to your
network (see fuse label at the rear panel).
Electromagnetic compatibility
Emission acc. to EN 50081-1, 1992
Immunity acc. to EN 50082-2, 1995
Influence parameter : RF field at 10 V/m : 1 div. max.
Safety
Acc. to EN 61010-1, 1993 + A2, 1995
Environment
Usage indoors
Altitude < 2 000 m
Reference temperature + 18 °C to + 28 °C
Usage temperature + 10 °C to + 40 °C
Operating temperature 0 °C to + 40 °C
Storage temperature - 20 °C to + 70 °C
Relative humidity < 80 % HR up to 31 ° C
30 MHz-differential oscilloscope
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Mechanical characteristics
Stackable instrument, the handle being used as a stand Weight: 7 kg Dimensions :
When packed
Dimensions : 550 x 460 x 280 mm Weight: 8.5 kg
6. SUPPLIES AND OPTIONS
6.1. Accessories
6.1.1. Provided with the apparatus
User’s manual 906121641
Power cable AG0416
Spare ceramic fuse T 0.315 A / 5x20 / 250 V located at the back of the instrument in a receptacle on the cathode ray tube stand AT0073
2 sets of safety BNC/banana cords (red + black) AG0484
6.1.2. Provided as options
1/10, 150 MHz ; 1/1, 35 MHz attenuator probe HX0003
1/10, 200 MHz attenuator probe HX0004
1/100, 200 MHz, 2 kV probe HA1317
1/10, 250 MHz, 300 V CAT III / 600 V CAT II safety probe HA1342
BNC male/banana female adaptater, 5 pins HA2022
BNC male/female T, 3 pins HA2004
50 BNC passage load PA4119-50
BNC/BNC 50 cable PA2249-C48
100 A clamp for oscilloscope AM0030N
600 A clamp for oscilloscope AM0031N
30 MHz differential probe MX9003
Carry bag AE0189
Programming kit (RS232C interface) HA1255
6.2. Options
Rack assembly kit (4U - 19") RK0008
30 MHz-differential oscilloscope
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