B+K precision 4030 Manuel utilisateur
Model 4030
10 MHz Pulse Generator
INSTRUCTION MANUAL
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1 Safety Summary
The following safety precautions apply to both operating and maintenance personnel
and must be observed during all phases of operation, service, and repair of this
instrument. Before applying power, follow the installation instructions and become
familiar with the operating instructions for this instrument.
GROUND THE INSTRUMENT
To minimize shock hazard, the instrument chassis and cabinet must be
connected to an electrical ground. This instrument is grounded through the
ground conductor of the supplied, three-conductor ac power cable. The
power cable must be plugged into an approved three-conductor electrical
outlet. Do not alter the ground connection. Without the protective ground
connection, all accessible conductive parts (including control knobs) can
render an electric shock. The power jack and mating plug of the power cable
meet IEC safety standards.
DO NOT OPERATE IN AN EXPLOSIVE ATMOSPHERE
Do not operate the instrument in the presence of flammable gases or
fumes. Operation of any electrical instrument in such an environment
constitutes a definite safety hazard.
KEEP AWAY FROM LIVE CIRCUITS
Instrument covers must not be removed by operating personnel.
Component replacement and internal adjustments must be made by
qualified maintenance personnel. Disconnect the power cord before
removing the instrument covers and replacing components. Under certain
conditions, even with the power cable removed, dangerous voltages may
exist. To avoid injuries, always disconnect power and discharge circuits
before touching them.
DO NOT SERVICE OR ADJUST ALONE
Do not attempt any internal service or adjustment unless another person,
capable of rendering first aid and resuscitation, is present.
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DO NOT SUBSTITUTE PARTS OR MODIFY THE INSTRUMENT
Do not install substitute parts or perform any unauthorized modifications to
this instrument. Return the instrument to B&K Precision for service and
repair to ensure that safety features are maintained.
WARNINGS AND CAUTIONS
WARNING and CAUTION statements, such as the following examples,
denote a hazard and appear throughout this manual. Follow all instructions
contained in these statements.
A WARNING statement calls attention to an operating procedure, practice,
or condition, which, if not followed correctly, could result in injury or death
to personnel.
A CAUTION statement calls attention to an operating procedure, practice, or
condition, which, if not followed correctly, could result in damage to or
destruction of parts or the entire product.
WARNING:
Do not alter the ground connection. Without the protective
ground connection, all accessible conductive parts (including
control knobs) can render an electric shock. The power jack
and mating plug of the power cable meet IEC safety standards.
WARNING:
To avoid electrical shock hazard, disconnect power cord before
removing covers. Refer servicing to qualified personnel.
CAUTION:
Before connecting the line cord to the AC mains, check the rear
panel AC line voltage indicator. Applying a line voltage other
than the indicated voltage can destroy the AC line fuses. For
continued fire protection, replace fuses only with those of the
specified voltage and current ratings.
CAUTION:
This product uses components which can be damaged by
electro-static discharge (ESD). To avoid damage, be sure to
follow proper procedures for handling, storing and
transporting parts and subassemblies which contain ESD-
sensitive components.
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Compliance Statements
Disposal of Old Electrical & Electronic Equipment (Applicable in the European Union
and other European countries with separate collection systems)
This product is subject to Directive 2002/96/EC of the
European Parliament and the Council of the European
Union on waste electrical and electronic equipment
(WEEE), and in jurisdictions adopting that Directive, is
marked as being put on the market after August 13,
2005, and should not be disposed of as unsorted
municipal waste. Please utilize your local WEEE collection
facilities in the disposition of this product and otherwise
observe all applicable requirements.
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Contents
1Safety Summary .........................................................................................................1
2Introduction.................................................................................................................5
3Installation ...................................................................................................................5
3.1 Initial Inspection ..............................................................................................5
3.2 Input Power Requirements..........................................................................6
4Controls and Indicators ..........................................................................................7
4.1 Front Panel Description ................................................................................7
4.2 Rear Panel Description ..................................................................................8
5Operating Instructions ............................................................................................9
5.1 Pulse Generator Output.................................................................................9
5.2 Using Manual Trigger.....................................................................................9
5.3 Using External Trigger................................................................................ 10
6Specifications ........................................................................................................... 11
7Certification .............................................................................................................. 13
8Maintenance ............................................................................................................. 14
8.1 Preventive Steps............................................................................................ 14
8.2 When the Unit is Not Turning On ........................................................... 14
8.3 Fuse Replacement......................................................................................... 15
8.4 Instrument Repair Service ........................................................................ 15
9Service Information............................................................................................... 16
10 Limited One-Year Warranty............................................................................... 17
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2 Introduction
Description
The B&K Precision model 4030 is specifically designed to include the basic facilities of
a Pulse Generator in order to make it an easy to operate unit. It offers pulse
repetition rates from 0.1 Hz to 10 MHz with rise and fall times of <12 nsec, pulse
width from 50 nsec to 50 msec and pulse amplitude from 0.5 V to 5 V across 50
ohms. A provision for external triggering and monopulse generation is also available.
The x’tal mode gives accurate eight spot frequencies derived from a 10 MHz crystal
source.
This manual contains information pertaining to the specifications, installation and
operation of the model 4030 Pulse Generator,
Features
Adjustable frequency range from 0.1 Hz to 10 MHz
Four digit LED frequency display
Invertible polarity
Single pulsed output via manual trigger
3 Installation
3.1 Initial Inspection
This unit is tested prior to shipment. It is therefore ready for immediate use upon
receipt. The initial physical inspections should be made to ensure that no damage has
been sustained during shipment.
Inspect the packing box on receipt for any external damage. If any external damage is
evident, remove the instrument and visually inspect its case and parts for any
damage. If damage to the instrument is evident, a description of the damage should
be noted on the carrier’s receipt and signed by the driver or carrier agent. Save all
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shipping packaging for inspection and contact the distributor from where the
instrument was purchased.
Retain the original packing in case subsequent repackaging for return is required. Use
of the original packing is essential.
After the mechanical inspection, verify the contents of the shipment. The items
included with the instrument are:
Power cord
User manual
BNC to alligator clips
If the contents are incomplete, or if the instrument does not pass the specification
acceptance tests, notify B&K Precision.
3.2 Input Power Requirements
The instrument can operate on 115 or 230 VAC source at 50 or 60 Hz. The line
selector plug on the rear panel allows you to select the line voltage. Before
connecting the power plug to an AC line outlet, be sure to check that voltage selector
plug is set in the correct position corresponding to the line voltage in your location
and the fuse rating is as shown in the table.
Selector
Line Voltage
Fuse
115V
110 –120 V, 50/60 Hz
0.5A
230V
220 –240 V, 50/60 Hz
0.250A
Table 1 - Fuse Table
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4 Controls and Indicators
4.1 Front Panel Description
1) POWER SWITCH
Turns power on and off.
2) MANUAL TRIGGER BUTTON
Outputs one pulse per button press.
3) MODE SWITCH
4) RATE KNOB
5) WIDTH KNOB
6) POLARITY BUTTON
Inverts output signal
7) MAIN OUTPUT
8) OUTPUT LEVEL KNOB
2
10
5
12
4
7
8
9
1
11
3
6
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9) VARIABLE WIDTH KNOB
10) VARIABLE RATE KNOB
11) DELAY KNOB
12) LED DISPLAY
Displays the output frequency
4.2 Rear Panel Description
13) TRIGGER INPUT
14) SYNC OUTPUT
15) EARTH GROUND SCREW
16) INPUT AC POWER SELECTOR AND FUSE
Power input socket and fuse compartment. Refer to arrow mark on fuse plug
and mark on panel for selected input line voltage.
17) AC INPUT VOLTAGE SELECTOR
13
15
14
16
17
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5 Operating Instructions
5.1 Pulse Generator Output
Before applying power to the unit, make sure that input voltage is correct and the
ventilation holes are not blocked. Ensure the ventilation fan is working well. It is
necessary to inspect the generated signal with an oscilloscope before connecting it to
any electronic circuit. Hence, use of oscilloscope is mentioned in the procedure. Turn
on the instrument with power on switch provided on the front panel. The display LED
will light up.
1. Select the type of waveform required by adjusting the corresponding knobs by
following the steps below.
2. Select the type of triggering you require. If you want to use standard
triggering, set the MODE KNOB to INT RATE.
3. Connect the main output signal to CH1 of oscilloscope and the SYNC output
signal to CH2 of oscilloscope. Set the trigger source of oscilloscope to CH2.
3. Set the output frequency of the signal with the RATE KNOBS. The display
shows the output frequency at all times.
4 Adjust the output waveform shape by adjusting the WIDTH KNOBS. The output
of the generator should be reflected on the display of the oscilloscope on CH1.
5. Adjust the amplitude of the signal with the LEVEL KNOB.
6. Observe the output level changing on the display of the oscilloscopes on CH1.
Note: Check the impedance of the load before connecting. To get an accurate
representation of the signal and prevent reflection, it is important to match this
impedance to the output impedance of the function generator.
5.2 Using Manual Trigger
In order to use the manual trigger, you must have the "Rate" switch in the
10M/100nS position. This is the only way to access the manual trigger function. If you
set the Rate switch to the 10M position and the "Width" switch to the 50mS and the
"Mode" switch to manual trigger, then set the volt/division switch on your O-Scope
to 2V or 5V and your time/division respectively at 50mS. When you push the manual
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