Promax OD-514B Manuel utilisateur

OD-514B, OD-515B

OD-545B

OSCILOSCOPIOS DE DOBLE CANAL

DUAL-CHANNEL OSCILLOSCOPES

OSCILLOSCOPES DE DOUBLE CANAL

0 MI0852

OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL

TABLE OF CONTENTS

1. GENERAL ...........................................................................................................................1

1.1 DESCRIPTION ...................................................................................................................1

1.2 SPECIFICATIONS...............................................................................................................2

2. SAFETY RULES .................................................................................................................5

2.1 GENERAL..........................................................................................................................5

2.2 SPECIFIC PRECAUTIONS....................................................................................................7

2.3 DESCRIPTIVE EXAMPLES OF OVER-VOLTAGE CATEGORIES...............................................7

3. INSTALLATION ..................................................................................................................9

3.1 POWER SUPPLY................................................................................................................9

3.2 HANDLE POSITION...........................................................................................................10

4. INSTRUCTIONS............................................................................................................... 11

4.1 DESCRIPTION OF CONTROLS AND ELEMENTS ...................................................................11

4.2 START UP.......................................................................................................................18

4.2.1 Preliminary Operations.........................................................................................18

4.2.2 Trace Rotation Adjustment ..................................................................................19

4.2.3 Probe Compensation ...........................................................................................19

4.3 OPERATION METHOD...............................................................................................20

4.3.1 Single-Channel Operation....................................................................................20

4.3.2 Dual-Channel Operation......................................................................................21

4.3.3 ADD and SUBTRACTION Measurement............................................................22

4.3.4 X-Y Operation and EXT HOR Operation.............................................................23

4.3.5 Triggering options.................................................................................................24

4.3.6 Single-sweep Operation.......................................................................................29

4.3.7 Sweep Magnification............................................................................................29

4.3.8 Waveform Magnification with Delayed Sweep....................................................30

4.3.9 Readout Functions...............................................................................................32

5. MAINTENANCE................................................................................................................35

5.1 INSTRUCTIONS FOR RETURNING BY MAIL..........................................................................35

5.2 MAINS FUSE REPLACEMENT ............................................................................................35

5.3 FUSES THAT CANNOT BE REPLACED BY THE USER..........................................................36

5.4 CLEANING RECOMMENDATIONS ......................................................................................36

OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL

November 2000 Page 1

DUAL-CHANNEL OSCILLOSCOPES

OD-514B, OD-515B & OD-545B

1. GENERAL

1.1 Description

The OD-514B,OD-515B &OD-545B are sturdy, easy to operate and exhibit high

operational reliability. This family of oscilloscopes are dual-channel oscilloscopes with

maximum sensitivity of 1 mV/DIV and maximum sweep time of 10 ns/DIV.

The most important differences between each model can be found in the following

table:

OD-514B OD-515B OD-545B

Bandwidth 40 MHz 60 MHz 60 MHz

Delay sweep system NO NO SI

Cursor readout NO NO

V%,

VdB,

T, 1/

DUTY, PHASE

Additionally, the oscilloscopes offer several other features:

High intensity CRT with high acceleration voltage:

The CRT is a high beam transmission and high intensity type with a high acceleration

voltage of 2 kV for OD-514B and 12 kV for OD-515B and OD-545B. It displays clear

readable traces even at high sweep speeds.

A trigger level lock function

This circuit eliminates the procedures of the troublesome triggering adjustment not only for

displaying signals but also for that of video signals and large duty-cycle signals.

TV sync triggering:

The oscilloscope has a sync separator circuit for TV-V and TV-H signals triggering.

X-Y operation mode

In this mode horizontal deflection (X-axis) is via CH1 signal and vertical deflection (Y-axis)

is via CH2 signal.

CH1 Output:

CH1 output located on rear panel can be applied to frequency counter or other instruments.

Z-Axis Input:

Beam intensity modulation capability permits time or frequency markers to be added. Trace

blank with positive signal, TTL compatible.

OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL

November 2000

Page 2

1.2 Specifications

SPECIFICATION / MODEL OD-514B OD-515B OD-545B

Sensitivity 1 mV ∼5V/DIV, 12 steps in 1-2-5 sequence

Accuracy 5 mV ∼5V/DIV: ≤3%, 1 mV ∼2 mV/DIV: ≤5% (10ºC to 35ºC)

(5 DIV at the centre of display)

Vernier vertical sensitivity To 1/2.5 or less of panel-indicated value.

5mV~2V/DIV:

DC~40MHz (-4 dB)

5V/Div:DC~40MHz (-5dB)

1mV~2mV/DIV:

DC~10MHz (-3dB)

5 mV ∼5 V/DIV: DC ∼60 MHz,

1 mV ∼2 mV/DIV: DC ∼15 MHz

Frequency bandwidth

AC coupling: Low limit frequency 10Hz.

(With reference to 100kHz, 8 DIV. Frequency response with –3 dB.)

Rise time 5 mV ∼5 V/DIV: ≈8.75 ns

1 mV ∼2 mV/DIV: ≈35 ns 5 mV ∼5 V/DIV:≈5.8 ns,

1 mV ∼2 mV/DIV: ≈23 ns

Input impedance 1 M

±2% // Approx. 25 pF

Overshoot: ≤7% (At 10 mV/DIV range)

Square wave characteristics (5 DIV at the centre of display)

Other distortions and other ranges: 5% added to the above value. (10ºC to 35 ºC)

DC balance shift 5 mV ∼5 V/DIV: ±0.5 DIV, 1 mV ∼2 mV/DIV: ±2.0 DIV

Linearity < ±0.1 DIV of amplitude change when waveform of 2 DIV at graticule centre is

moved vertically.

Vertical modes

CH1: CH1 single channel.

CH2: CH2 single channel.

DUAL: CH1 & CH2 channels. CHOP/ALT are auto-set by TIME/DIV switch.

(CHOP:0.5 s ∼5 ms/DIV, ALT: 2 ms ∼0.1

s/DIV)

When CHOP switch is pushed in, the two traces are displayed in the

CHOP mode at all range.

ADD: CH1 + CH2 algebraic addition.

Chopping repetition frequency Approx. 250 kHz

Input coupling AC, DC, GND

Maximum input voltage 400 V (DC + AC peak), AC: frequency 1 kHz or lower.

Common mode rejection ratio 50:1 or better at 50 kHz sinusoidal wave.

(When sensitivities of CH1 and CH2 are set equally)

Isolation between channels

(At 5 mV/DIV range) >1000:1 at 50 kHz

>30:1 at 35 MHz > 1000:1 at 50 kHz

> 30:1 at 60 MHz

CH1 signal output Approx. 100 mV/DIV without termination, 50 mV/DIV with 50

termination.

Bandwidth (-3 dB): OD-514B: 20 MHz, OD-515B & OD-545B: 40 MHz

CH2 INV BAL. Balanced point variation: ≤1 DIV (Reference at centre graticule.)

Dynamic range > 8 DIV at 20 MHz

> 4 DIV at 40 MHz > 8 DIV at 50 MHz

> 5 DIV at 60 MHz

VERTICAL

AXIS

Signal delay --- --- Leading edge can be

monitored.

Triggering source CH1, CH2, LINE, EXT (CH1 and CH2 can be selected only when the vertical

mode is DUAL or ADD). In ALT mode, if the TRIG. ALT switch is pushed in, it can

be use for alternate triggering of two different source. )

Coupling AC, HF-REJ, TV, DC

(TV-V/TV-H can be auto-set by TIME/DIV range. TV-V: 0.5 s-0.1 ms/DIV;

TV-H: 50

s ∼0.1

s/DIV)

TRIGGERING

Polarity +/ −

OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL

November 2000 Page 3

SPECIFICATION / MODEL OD-514B OD-515B OD-545B

DC ∼5 MHz: 0.5 DIV

(EXT: 0.1 V)

5 ∼20 MHz: 1.5 DIV

(EXT: 0.2 V)

20 ∼40 MHz: 2 DIV

(EXT: 0.3 V)

DC ∼10 MHz: 0.5 DIV (EXT: 0.1 V)

10 ∼50 MHz: 1.5 DIV (EXT: 0.2 V)

50 ∼60 MHz: 2.0 DIV (EXT: 0.3 V)

Sensitivity

TV (video signal): 2.0 DIV (EXT: 0.2 V)

AC coupling: Attenuate signal components < 10 Hz.

HF-REJ: Attenuate signal components > 50 kHz.

Triggering modes

AUTO: Sweeps run in the free mode when no triggering input signal is applied.

(Applicable for repetitive signals of frequency 50 Hz or over.)

NORM: When no triggering signal is applied, the trace is in the READY state and

not displayed.

SINGLE: One-shot sweep with triggering signal. Can be reset to the READY state by

means of the RESET switch. The READY lamp (LED) turns on when in the

READY state or in the sweep operation.

Satisfies the value of the

above trigger sensitivity plus

1DIV (EXT: 0.1 V) for signal of

duty cycle 20:80.

Satisfies the value of the above trigger sensitivity

plus 0.5 DIV (EXT: 0.05 V) for signal of duty

cycle 20:80.

LEVEL LOCK and ALT

Repetition frequency:

50 Hz ∼40 MHz Repetition frequency: 50 Hz ∼40 MHz

EXT triggering signal input

Input impedance

Max. input voltage

1 M

±2% // approx. 35 pF

100 V (DC + AC peak), AC: Frequency not higher than 1 kHz

TRIGGERING

B triggering signal.

The triggering signal

of main sweep is

used as the B

triggering signal.

Horizontal axis display A A, A INT, B, B TRIG'D

A sweep (main sweep) time 0.1

s ∼0.5 s/DIV, 21 steps in 1-2-5 sequence

Sweep time accuracy ± 3%, (10 ºC to 35 ºC)

Vernier sweep time control ≤1/2.5 of panel-indicated value

Hold off time Continuous variable



twice sweep length (time) at 0.1 µs ~ 1 ms/DIV ranges.

B sweep delay system

B sweep time

(delay sweep)

Sweep time accuracy

Delay time

Delay jitter

--- ---

Continuous delay and

triggered delay

0.1

s ∼0.5 ms/DIV,

12 steps

±3%, (10 to 35 ºC)

s ∼5 ms

≤1/10000

Sweep magnification 10 times (maximum sweep time 10 ns/DIV)

x10 MAG sweep time

accuracy 0.1

s ∼50 ms/DIV ±5%, 10 ns ∼50 ns/DIV ±8% (10ºto 35ºC)

Linearity NORM: ±3%, x10MAG: ±5% (±8% for 10 ns ∼50 ns/DIV)

HORIZONTAL

AXIS

Position shift caused by

x10MAG Within 2 div. at CRT screen centre

Sensitivity Same as vertical axis: (X-axis: CH1 input signal; Y-axis: CH2 input signal.)

Accuracy NORM: ± 4%, x10MAG: ± 6% (10ºto 35 ºC)

Frequency bandwidth DC ∼1 MHz (-3dB) DC ∼2 MHz (-3dB)

X-Y MODE

X-Y phase difference ≤3ºat DC ∼50 kHz ≤3ºat DC ∼100 kHz

OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL

November 2000

Page 4

SPECIFICATION / MODEL OD-514B OD-515B OD-545B

Sensitivity Approx. 0.1 V/DIV (Trace swept by an external horizontal signal applied to the

EXT TRIG IN terminal. Vertical axis modes are CH1, CH2, DUAL and ADD

modes in the CHOP mode.)

Frequency bandwidth DC ∼1 MHz (-3 dB) DC ∼2 MHz (-3 dB)

EXT HOR

MODE Phase difference between

vertical axis ≤3ºat DC ∼50 kHz ≤3ºat DC ∼100kHz

Sensitivity 3 Vp-p (Trace becomes brighter with negative input.)

Frequency bandwidth DC ∼5 MHz

Input impedance 5 k



Z AXIS

Maximum input voltage 50 V (DC + AC peak, AC frequency≤1 kHz )

Waveform Positive-going square wave

Frequency 1 kHz ±5%

Duty ratio 48:52

Output voltage 2 Vp-p ±2%

CALIBRATION

VOLTAGE Output impedance Approx. 2 k

Type 6-inch rectangular type, internal graticule.

Phosphor P 31

Acceleration voltage Approx. 2 kV Approx. 12 kV

Effective screen size 8 x 10 DIV (1 DIV = 10 mm (0.39 in))

CRT

Graticule Internal; continuous adjustable illumination (OD-515B & OD-545B only)

Cursor measurement

functions

V%,

VdB,

T, 1/

T, DUTY, PHASE

Cursor display format



(DELTA),



(REF)

Cursor resolution 1/25 DIV

Effective cursor range from

centre graticule Vertical: ±3 DIV

Horizontal: ±4 DIV

CURSOR

READOUT

(OD-545B

only) Panel setting display V/DIV, V-MODE, INV, ALT/CHOP, UNCAL, ADD (SUB), x10 MAG,

PROBE (x1 / x10), X-Y, A T/D, TV-V/H, B T/D

Mains voltage 100 V, (90 to 110 V), 120 V (108 to 132 V), 220 V (198 to 242 V),

230 V (207 to 250 V) AC selectable, 50 or 60 Hz

POWER

SUPPLY Consumption 60 W

Indoor use

Altitude up to 2000 m

To satisfy specifications: 5 ºto 35 ºC

Temperature range Maximum operating ranges: 0ºto 40 ºC

Relative humidity R. H. 85% (maximum value) non condensing

OPERATING

ENVIRONMENT

Storage temperature

& humidity -10 ºto 70 ºC, R.H. 70% (maximum)

Dimensions 310 W x 150 H x 455 D (mm)

MECHANICAL

FEATURES Weight Approx. 8.2 Kg (18 lbs)

ACCESSORIES Power cord CA-006

OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL

November 2000 Page 5

2. SAFETY RULES

2.1 General

* Use this equipment connected only to systems with their negative of

measurement connected to ground potential.

* This is a Class I equipment, for safety reasons plug it to a supply line with the

corresponding ground terminal.

* This equipment can be used in Overvoltage Category II installations and Pollution

Degree 1 environments.

* When using some of the following accessories use only the specified ones to ensure

safety.

Mains (Power) cord.

* Observe all specified ratings both of supply and measurement.

* Remember that voltages higher than 60 V DC or 30 V AC rms are dangerous.

* Use this instrument under the specified environmental conditions.

*The user is only authorised to carry out the following maintenance operations:

Mains fuse replacement, that should fit indicated type and value.

On the Maintenance section proper instructions are given.

Any other change on the equipment should be carried out by qualified personnel.

*The

negative of measurement is at ground potential.

*Do not obstruct the ventilation system of the instrument.

* Follow the cleaning conditions described in the Maintenance paragraph.

OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL

November 2000

Page 6

* Symbols related with safety:

DIRECT CURRENT

ALTERNATING CURRENT

DIRECT AND ALTERNATING

GROUND TERMINAL

PROTECTIVE CONDUCTOR

FRAME TERMINAL

EQUIPOTENTIALITY

ON (Supply)

OFF (Supply)

DOUBLE INSULATION

(Class II protection)

CAUTION

(Risk of electric shock)

CAUTION REFER TO MANUAL

FUSE

OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL

November 2000 Page 7

2.2 Specific precautions

1. Do not use the equipment immediately after moving it to a room with very different

temperature. Wait for a while until the equipment reaches room temperature.

2. Do not apply voltages that exceed the limits of probes or input connectors.

2.3 Descriptive Examples of Over-Voltage Categories

Cat I Low voltage installations isolated from the mains

Cat II Portable domestic installations

Cat III Fixed domestic installations

Cat IV Industrial installations

Ce manuel convient aux modèles suivants

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