Scientific SM5074 User manual

User Manual
3 MHz Function Generator/
Counter
SM5074/ SM5075

2
SM5User Manual 074/ SM5075
Scientific Mes-Technik Pvt. Ltd.,
B-14 Industrial Estate, Pologround,
Indore 452015 (India)
Tel : [phone]/33
Fax : [phone],561641
Email : [email protected]
Copyright Scientific All rights reserved.©
This instrument contains proprietary information, no part of this manual may be
photocopied, reproduced or translated without any prior written consent.
Information in this manual supercede all corresponding previous released
material.
Scientific continues to improve products and reserves rights to amend part or all
of the specifications, procedures, equipment at any time without notice.
Rev 2.2 / 1212

3 MHz Function Generator/Counter
SM5074/ SM5075
Table of Contents
1. Introduction ........…………………….………..…................... 4
2. Technical Specifications .............….……...…......................5
3. Front Panel diagram 5074……….................. 8
Front Panel diagram 5075 ............................. 9
Front Panel Controls.............................................................10
4. Rear Panel Controls…………………………..…....................12
5. Operating Instructions…............………………….................14
General Information…..…………………….......................14
Safety….........……………………...…………................... 14
Operating Conditions …...…………………….................. 14
First Time Operation…..……………………….................. 15
Mode Selection….......……………………........................ 15
Use as a Function Generator…................….…................ 15
Modulation…................................................................... 16
Amplitude Modulation…...........………………............ 16
AM Standard….....……………………….....................17
AM Balance…...……………………….........................17
Frequency Modulation…....……………… 18
Pulse Width Modulation ….......……………….............19
PulseAmplitude Modulation.......................................19
External Control VCF........................................................20
Internal Modulation Generator..........................................21
Use as Programmed Frequency Generator...................... 21
Use as Sweep Function Generator................................... 21
DC Offset..........................................................................22
Trigger Output.................................................................. 22
Use as External Frequency Counter................................. 22
6. Maintenance ………………………………..….…..................23
Power Line Fuse Replacement …………….....................23
7. Dispatch Procedure For Service.......................................... 24
8. Warranty Conditions....……………..........…...…...................25
9. List of Service Centers....……………................................... 2
SM .................
SM ..................
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User Manual SM5074/ SM5075

Frequency Range 0.3 Hz to 3 MHz
¦ Operating Modes : Function Generator, Frequency Counter, Amplitude
Display
¦ Modulation : AM Standard & Balance, FM Int. & Ext.,
PWM, PAM
¦ Function Generator : Sine,Square,Triangle, Ramp, Pulse, Invert Ramp,
Invert Pulse, TTL, DC
¦ Digital Frequency Readout, Amplitude Readout
Precise control over setting via Encoder
DC-Offset Adjustment
Internal Sweep Facilities
Square Wave Risetime Typ. 70 ns
Display : LCD with back lit
Internal Modulation generator with Sine,Triangle, Square Wave output
(SM5075).
SM5075
back lit LCD signal purity
amplitude flatness
3 MHz Function Generator Counter
SM5074 / SM5075
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■
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■
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The various signals available from the Function Generator
Counter makes it a versatile signal source useful for most measurement and test
applications. Its low frequency ranges are particularly well suited for simulating
mechanical and servo techniques. has built in modulation signal source
for use in various modulation technique available in the instrument.
An auto ranging frequency Counter is activated by a single push button , external
signal frequencies are displayed on . The and constant
through out the entire range are the highlights of this Function
Generator. The can also be used in the sweep mode with an
internal or external signal source.
SM5074/ SM5075
SM5074/ SM5075
4SM5User Manual 074/ Sm5075

Technical Specifications
Operating Modes :
(SM5075)
Modulation :
:
Frequency Range :
Frequency Stability :
Waveform Characteristics :
Sine wave Characteristics :
Distortion :
Square wave
Risetime :
Overshoot :
Triangular Wave
Non-Linearity :
Ramp Wave
Polarity :
Pulse Wave
Polarity :
Duty Cycle :
TTL/Trigger Output
Function Generator, Frequency Counter, Amplitude
display,AM Generator
AM Standard & Balanced, FM int (sweep) & Ext., PWM,
PAM
Sine, Square, Triangle, Ramp, Pulse, Invert Ramp,
Invert Pulse TTL DC Free running, with or without
adjustable DC offset.
0.3 Hz to 3 MHz
< 0.1% / hr or 0.2 % /24 hr at constant ambient
temperature
0.3 Hz – 100 kHz : max. 0.5 %
0.1 MHz – 0.5 MHz : max. 1.5%
0.5 MHz – 3 MHz : max. 3%
typ. 70 ns
5%
1% (up to 100 kHz)
ve or - ve selectable
ve or - ve selectable
Adjustable 10% to 90% up to 300 kHz & 20% to 80%
300 kHz to 3MHz
Square Wave synchronous to signal output, TTL 4 Vpp
Function Generator
£
£
<
+
+
>
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User Manual SM5074/ SM5075

Frequency Display Accuracy :
Output :
Output Voltage :
Pulse Output :
Attenuation :
Amplitude Flatness :
Output Impedance :
DC Offset :
Amplitude Modulation
Frequency Modulation
Internal Sweep
Pulse Width Modulation
up to 3 Hz : (1%+3D)
3 Hz – 3 MHz : (0.1% + 1D)
(short-circuit-proof)
max. 20 Vpp (o.c.), 10 Vpp into 50
10 Vpp open circuit
max. 60 dB
2 steps : 20 dB 0.2 dB each
Variable : 0 to 20 dB
(sine/triangle into 50 )
0.3 Hz – 0.3 MHz : max. 0.2 dB
0.3 MHz – 3 MHz : max. 0.5 dB
50 (front panel), 600 (on rear panel)
Variable offset range : max. 2.5 V into
50 , max 5 V open circuit
(BNC connector on rear panel)
Modulation Depth : 0 to 100 % approx.
Bandwidth : DC to 20 kHz
Carrier Frequency : Up to 3 MHz
Max Input : AM standard & AM Balanced : 30 V max
(BNC connector on rear panel )
Frequency Change : 1 : 100 approx.
Input Impedance : 50 k ll 25 pF
Sweep Speed : 20 ms to 4 s
Sweep Range : approx. 1 : 100 approx.
Input Voltage :
Input : 30 V max (Mod connector on rear panel)
Modulation Index : 20 to 80 % or better
±
±
W
±
W
±
±
W W
±
W ±
±
W
±
±
30 V max.
6SM5074/ SM5075User Manual

Pulse Amplitude Modulation
nternal Modulation Generator (SM5075)
:
Amplitude Display :
General Information :
Display :
Supply :
Power consumption :
Operating Conditions :
Dimensions :
Weight :
Input : 30 V max (Mod connector on
rear panel)
Depth of Modulation : 80 % or better
I
Waveforms : Sine, Square, Triangle
Frequency : 20 Hz to 20 kHz
Amplitude : adjustable 2 to 10 Vpp approx.
Internal / External, Auto ranging
Frequency Range : 10 Hz to 40 MHz,
Accuracy : (0.1% + 1 D)
Input Sensitivity : 50 mVrms to 500 mVrms
Max. Input Voltage : 150 Vrms
Input Impedance : 1 M ll 50 pF
Display Range : 20 mVpp-20 Vpp, Accuracy :
2% D
LCD with back lit
230 V 10%, 50 Hz
30 VA approx.
0 to 50 C , RH 95 %
W : 205, H : 95, D : 292 (mm)
2.4 kg (approx.)
( Subject to Change )
±
±
W
± ±
±
Frequency Counter
0
7
User Manual SM5074/ SM5075

Front Panel Controls
5074SM
3 z AM FM Function Generator Counter 5074MH SM
8SM5074/ SM5075User Manual
3 MHz AM FM Function Generator Counter SM5074
ON
OFF
Set Parameters
Fun Gen
Sweep
519
18
20
17 6912 13
23
22 15 16
14
24 27
21
26 25
3411 10 87
2
(150 Vrms max)
Power
Auto/Level 1:10
Attenuation
Trigger
Pulse Duty Start/Stop Time
Frequency Counter
Frequency Amplitude Function Offset
Output
Fine
Sweep
Fun Gen Counter
Modulation Offset
X10
20Vpp
max
Output
10

Front Panel Controls
507SM 5
3 zAM FM Function Generator Counter 5075MH SM
9
User Manual SM5074/ SM5075
3 MHz AM FM Function Generator Counter SM5075
ON
OFF
Set Parameters
Fun Gen
Sweep
519
18
20
17 6912 13
23
22 15 16
14
24 27
21
26 25
3411 10 87
2
(150 Vrms max)
Power
Auto/Level 1:10
Attenuation
Trigger
Pulse Duty Start/Stop Time
Frequency Counter
Frequency Amplitude Function Offset
Output
Fine
Sweep
Fun Gen Counter
Modulation Offset
X10
20Vpp
max
Output
10
Mod Gen
28
Mod Gen

Push button switch for supplying power to instrument.
LCD display with back lit.
When pressed function generator mode is selected.
Press to select frequency counter mode.
(BNC CONN.) Input to Counter (max 150 Vrms).
When pressed allow the setting of
frequencies
(Encoder) Variable control for setting the values of
frequency, amplitude, duty cycle, trigger level, offset voltage, width & time
in sweep mode. When any of this push button selected, this variable
control allows setting of values, it gets disabled in 10 sec if no further
variations made or press the same switch again to disable the function.
: Selects the fine adjustment.
: Selects amplitude mode push button is
used to increase or decrease the amplitude by 10times respectively. Variable
control is for setting amplitude.
Pushbutton to multiply the parameter by 10 times.
Pushbutton to divide the parameter by 10 times.
Selection for DC, Triangle, Sine, Square, Ramp, Pulse.
When Pulse function selected the duty cycle can be adjusted
with the help of variable control (encoder) .
Activate/deactivates the internal sweep mode.
: Push button to set the start and stop frequency in sweep
mode.
Setting of time in sweep mode.
Used in frequency counter mode, in normal condition
triggering is automatic and when push button pressed the
trigger level can be set with the help of encoder.
indication for triggered signal in frequency counter mode.
POWER :
DIGITAL DISPLAY :
FUN GEN :
COUNTER :
EXT IN :
FREQUENCY : Variable Control
Variable Control :
FINE
AMPLITUDE X10 & 10
X10 :
10 :
FUNCTION :
PULSE DUTY :
SWEEP :
START/STOP
TIME :
AUTO/LEVEL :
AUTO/LEVEL
LED :
fine control, press FINE pushbutton switch.
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SM5074/ SM5075User Manual
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