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TEST INSTRUMENT SAFETY
WARNING
Normal use of test equipment exposesyou to a certain amount of danger from electrical shock
becausetesting must often be performed where exposedvoltage is present. An electrical shock
causing 10miliamps of current to pass through the heart will stop most human heartbeats. Voltage
as low as 35volts dc or ac rms should be considereddangerousand hazardous sinceit can produce
a lethal current under certain conditions. Higher voltagespose an evengreater threat becausesuch
voltage can more easilyproduce a lethal current. Your normal work habitis should include all ac-
cepted practices that will prevent contact with exposed high voltage. and that will steer current
away from your heart is case of accidental contact with a high voltage. You will significantly
reduce the risk factor is you know and observe the following safety precautions:
Don't expose high voltage needlessly. Remove housings and covers only when necessary.
Turn off equipment while making test connections in high-voltage circuits. Discharge high-
voltage capacitors after removing power.
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Use an insulated floor material or a large, insulated floor mat to stand on, and an insulated
work surface on which to place equipment; and make certain-such surfacesare not damp or
wet. Where insulated floor surface is not available, wear heavy gloves.
3. Use the time-proven "one hand in the pocket" technique while handling an instrument
probe. Be particularly careful to avoid contacting a nearby metal object that could provide a
good ground return path.
Always use an isolation transformer to power transformerless "hot chassis" equipment,
whereone side of the ac power line is connected directly to the chassis.This includes most re-
cent television sets and audio equipment. Without an isolation transformer, the chassisof
such equipment may be floating at line voltage (120 VAC, 60 Hz in USA), depending upon
which way the 2-wire ac power plug is inserted. Not only does this presenta dangerousshock
hazard if the chassisis touched, but damageto test instruments or the equipment under test
may result from connecting the ground lead of some test instrumentsto a "hot" chassis.The
ground lead of this function generator and most other test instruments with 3-wire power
plugs is at earth ground.
S. On test instruments or any equipment with a 3-wire ac power plug, use only a 3-wire outlet.
This is a safety feature to keep the housing or other exposed elementsat earth ground.
6. If possible, familiarize yourself with the equipment being tested and the location of its high
votage points. However, remember that high voltage may appear at unexpected points in
defective equipment.
Also remember that acline voltage is presenton some power input current points suchas on.
off switches, fuses, power transformers, etc., even when the equipment is turned off.
8. Never work alone. Someoneshould be nearby to render aid if necessary.Training on CPR
(cardo-pulmonary resuscitation) first aid is highly recommended.
7.
2.
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FOR
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.' .6460 W. Cortland Street
Chicago, Illinois 60635
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TABLE OF CONTENTS
PAGE
OPERATING
PANEL
SPECIFICATIONS.
INTRODUCTION CONTROLS INSTRUCTIONS AND FEATURES.
3
3
5
A. Frequency and Waveform Selection, Manual Operation 8
APPliCATIONS B. D.TTLOutput
C. Voltage-Controlled
DC Output. Operation. 9
10
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12
.C. B.
A.
D. Tone
Amplifier Control Performance
Overload
Frequency Test. Characteristic. Response. Evaluation Using Square Waves 13
13
13
16
THEORY G.E.SpeakerSystemTestingUsing
J.
I. F.AMReceiverAlignment Digital
H.
K.AdditionalApplications Communications
Preset OF the Frequency
Frequency
OPERATION 3010 As ReceiverSelection.
Selection. A Bias and Alignment. Signal Source.
18
18
2021
22
23
23
MAINTENANCE Detailed
GeneralCircuitDescription Circuit Description. AND CALIBRATION
25
27
ONE-YEAR
WARRANTY Removal
Calibration
LineVoltageConversion liMITED
of SERVICE Rear
Procedure Case WARRANTY. INSTRUCTIONS.
31
32
36
3738
'-
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INTRODUCTION
The B & K-PRECISIONModel 3010 Function Generatoris a versatilesignal
source that can be used in a variety of engineering,industrial, educationaland
hobbyist applications.The wide frequency range Hz to 1 MHz) for all functions
(.1
(sine, square,triangle and TTL output) encompassessubaudible, ultrasonic
audio,
and RF applications.The continuously variableDC offset control and provisionfor
external VCO control further enhancethe versatility of this instrument. The
human-engineered lendsitself to benchuseas well aseasy
case portability.
SPECIFICA
nONS
GENERAL
BasicOutputs Square, sine, triangle, DC and TTL Square Wave
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(separate
outputjack).
Frequency
Range OJ Hz to 1 MHz in six ranges.
External Frequency
Control VCO; greater than 100: 1 on any frequency range
(linear). With FREQUENCY dial set at .1, a
0-to-5.5 V ramp input will produce a 100:1 fre-
quency change. Frequency increases with positive
voltage.
MaximumInput :!:20V peak.
Input Impedance 1000ohms,nominal.
SPECIFICAnONS (AU specifications apply with dial scale between 1 and 10)
Dial Accuracy 5% of full scale to 500 kHz, 8% of full scale from
500 kHz to 1 MHz (includes dial scale accuracy and
range-to-rangeaccuracy). Unit calibrated at full scale.
Dial Range Greater than 100: 1,
Output Impedance 600.Q, :1:5%.
Output Amplitude 20 V pop open circuit;
10 V popinto 600il.
Amplitude Control Continuouslyvariable,greater
than 30 dB range.
3
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DC Offset Continuously variable, :tIO V, open circuit; :tS V,
into 600Q.
V AC + Voc offset without clipping, :1:10
V
open circuit; :1:5 into 600il.
V
SineWave
Distortion Less than 1%, 1 Hz to 100 kHz; hannonics more
than 30 dB down from fundamental, 100KHz to
1 MHz.
SquareWave
Non-Symmetry Lessthan 1%,to 100KHz.
TriangleWave
Non-linearity Lessthan 1%,to 100KHz.
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SquareWave
Rise/FallTime less than 100nSEC at maximum output amplitude.
SineWaveAmplitude
flatness :1:.3 to 1 MHz at maximum output amplitude.
dB
TTL Square Wave
Response Less than 25 nSEC rise/fall time. Fixed TTL level:
LO less than .4 V; III greaterthan 2.4 V. Will drive
20 TTL loads.
Short-Term
Stability .05%
PowerRequirements 105 to 130 VAC, 60 Hz. 8 watts max.
(105-130/210-260VAC, 50/60 Hz export version
available)
Dimensions(HWD)
"
3.2 x 11.3 x 7.7
(8.13x28.70x 19.56 cm.)
Weight 21bs.,9 oz. (1.16 Kg.) without line cord.
21bs., 14 oz.(1.31 Kg.) with line cord.
Handle Four positions: integralpart of case.
4
Max.
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PANEL CONTROLS AND FEATURES
(SeeFig. 1)
1. POWERon-off switch. Depressing button turns the 3010on. To turn off,
this
pushagainand release.
RANGE selectors. Decade frequencytype. Multiplying the rangeselected
times
the FREQUENCYdial (6) indication gives output frequency,whichapplies
the
for all functions. For example, the 100K RANGE button is depressed
if and
the FREQUENCYdial is at 10,the output frequency 1 MHz.
is
FUNCTION selectors.Select square (IUU), sine ("",,), or triangle ("""")
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output waveformwhich appears 600n OUTPUTjack (9).
at
AMPliTUDE control. Controls the amplitude of the output signal, which
appearsat 600n jack (9). This control does not apply to the DC OFFSET
voltageor to the TTL output.
S. DC OFFSET control. Adds positive or negativeDC componentto the signal
appearing at 600n OUTPUT jack (9). Continuously variable for :!:S V
(600 ohms) or :!:10V (open circuit). The DC component
addedby this control
is dependent the adjustment AMPLITUDE control (4).
of of
FREQUENCY dial. Multiplying the setting of this dial times the frequencyof
the RANGE switch (2) selectedgives output frequencyof the waveforms
the at
the 600n OUTPUTjack (9) and TTL jack (7).
7. TI'L jack. A TI'L square wave is available at this jack. The frequency is
determinedby the RANGE selectedand the settingof the FREQUENCY dial.
This output is independent the AMPliTUDE and DC OFFSETcontrols.
of
8. -=b(Ground)jack. Commonreference the 1TL and 600n OUTPUTsignals.
for
9. 600Q OUTPUTjack. Waveformsselectedby FUNCTIONswitchesaswell as
the superimposed OFFSETvoltageareavailable this jack.
DC at
10. HANDLE. Multiple-position design permits use as a tilt stand or carrying
handle.
6.
4.
3.
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