Scientific SM5060-2 User manual

User Manual
2 MHz Function Generator
SM5060-2

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 1.0 /0717
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SM5060-2 User Manual

2 MHz Function Generator
SM5060-2
Table of Contents
1. Introduction ........…………………….……….. 4
2. Technical Specifications .............….……...….... 5
3. Front Panel Controls........................................... 7
4. Rear Panel Controls………………………..….... 9
5. Operating Instructions…............…………….... 10
General Information…..…………………… 10
Safety….........……………………...……… 10
Operating Conditions …..………………… 10
First Time Operation…..…………………… 11
Function Selection….......…………………… 11
Frequency Adjustment…................….…… 11
OutputAmplitude & Signal Connection….... 11
Trigger Output….........……………………... 12
Sweep Facilities....……………………….. 12
Internal Sweep…...……………………… 12
FM Input…....…………………………….... 12
DC Offset ….......……………………………. 13
6. Maintenance ………………………………..….… 14
Power Line Fuse Replacement …………… 14
7. Dispatch Procedure for Service ......................... 15
8. Warranty Conditions....……………..........…...…... 16
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SM5060-2 User Manual

2 MHz Function Generator
SM5060-2
■Frequency Range 0.2 Hz to 2 MHz
■Operating Modes : Sine, Square, Triangle, DC , Ramp & Pulse
■Digital Frequency Readout
■DC-Offset Adjustment
■Internal Sweep Facilities
■Trigger Output
■Square Wave Risetime Type. 40 ns
The various signals available from the Function Generator makes it aSM5060-2
versatile signal source useful for most measurement and test applications. Its low
frequency ranges are particularly well suited for simulating mechanical and servo
techniques.
Frequencies are read out on a with a maximum16*2 dot matrix LCD display
resolution of 1 mHz. Additional quality features include the relatively low
distortion factor constant amplitude flatnessof the generated signals and
throughout the entire frequency range of the instrument.
All outputs are short-circuit-proof in .SM5060-2
The can also be used in the with an internal or externalSM5060-2 sweep mode
signal source.
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SM5060-2 User Manual

Technical Specifications
Operating Modes : Sine - Square - Triangle – DC, Ramp &
Pulse(with variable duty cycle adjustment)
Free running, internal sweep or external
frequency modulation, with or without DC
offset
Frequency Range : 0.2 Hz to 2 MHz in 7 decade steps, variable
control : x 0.1 to x1 (10:1)
Frequency Stability : < 0.5%/ h or 0.8% /24h at constant ambient
temperature (Medium position of frequency
control)
Waveform Characteristics
Sine Wave Distortion : 0.2 Hz to 100 kHz : max. 0.5%
100 kHz to 0.2 MHz : max. 1.0%
0.2 z to 2 MHz : max. 1.5%MH
Square Wave Risetime : Typ. 40 ns£
Overshoot : £ W5% (when output is terminated with 50 )
Triangular Non-Linearity : 1% (up to 100 kHz)<
Frequency Display Accuracy : up to 2 Hz : (1%+ 3 digit)±
2 Hz to 2 MHz : + (0.01%+ 1 digit)
Output : (short circuit proof)
Output voltage : 10 Vpp into 50 , max 20 Vpp open circuitW
Attenuation : Max. 60 dB, 2 steps : 20 dB each
Variable : 0 to 20 dB
Amplitude Flatness : (sine / triangle)
0.2 Hz to 0.2 MHz : max. 0.2 dB±
0.2 MHz to 2 MHz : max. 0.5 dB.+
Output Impedance : 50 (Front Panel) / 600 (Rear Panel)W W
DC Offset : Variable Offset range : max. ± 2.5 V into 50 ,W
Max. ± 5 V Open circuit
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SM5060-2 User Manual

Trigger Output : Square wave synchronous to signal output;
Approx. 4 V(TTL)>
4 mm banana socket on rear panel
FM input (VCF) : 4 mm banana socket on rear panel
Frequency change : approx. 1:100
Input Impedance : 50 k || 25 pFW
Input Voltage : ±30 V max.
Internal Sweep : Sweep speed : 20 ms to 4s
Sweep Range : approx. 1:100.
General information
Display : 16*2 dot matrix LCD display
Supply : 230 V, 10%, 50 Hz±
Power consumption : 22 VA approx
Operating Conditions : 0 C to + 40 C., RH 95% (max.)
0 0
Dimensions (mm) : W: 196, H: 80, D: 262 (mm)
Weight : Approx 2.0 kg.
Accessories : :Manual : 1 no. , BNC – BNC 1 no. ,
Line Cord : 1 no.
Values without tolerances are intended as guidelines and represent characteristics
of the average instrument.
( Subject to Change )
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SM5060-2 User Manual

POWER : Push button switch for supplying power to instrument.
DIGITAL DISPLAY : Backlit LCD display for modes & frequency.
OFFSET : Adjustment of the positive or negative offset voltage. DC voltage
can be superimposed on the output signal. The max. offset voltage is ± 5 V
(o.c.) or ± 2.5 V when terminated with 50 W.
Continuous adjustment of the output amplitude from 0 to –AMPLITUDE :
20 dB .
FUNCTION : Mode selection switch (Triangle- Sine – Square – DC).
VARIABLE : Control to change the slope of ramp waveform & pulse duty
cycle of pulse waveform.
SYM : PB switch for generating ramp & pulse waveform whenTri & Sq.
function is selected respectively.
RANGE : Frequency range selection from 0.2 Hz to 2 MHz in 7 decade
steps.
7
Front Panel Controls
1
7
2
3
4
5
6
8
2
7
10
POWER
ON/OFF
OUTPUT
OFFSET -20dB -20dB
SWEEP
SPEED WIDTH
!
2 z Function GeneratorMH
SM5060-2
SYM
OFFSET
V1.0
AMPL
FUNC
VARIABLE
FRQ
RANGE
20Vpp
max
-5V +5V min max
512 11 6313 414 15 16
9
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SM5060-2 User Manual

FREQUENCY : (adjusting knob) Continuous and linear frequency fine
adjustment, overlapping the ranges selected with 9 . Setting range from
x 0.09 to x 1.1 of the selected range.
Activates the internal Sweep mode.SWEEP :
Setting of wobbulation width.WIDTH :
Setting of wobbulation speed in Sweep mode.SPEED :
Activates the DC offset function.OFFSET :
-20 dB : When pressed the output signal gets attenuated by 20 dB fixed
attenuator.
OUTPUT (BNC connector) : Short-circuit-proof signal output of the
generator. The output impedance is 50 , and the max.outputW
amplitude is 20 V (o.c.) or 10 V respectively when terminated with 50 .
pp pp W
When pressed the output signal gets attenuated by 20 dB fixed-20 dB :
attenuator. When both attenuator pushbuttons are activated, a total
attenuation of 40 dB results. Including the amplitude control the max.
attenuation amounts to 60 dB (factor 1000).
8
9
10
11
12
13
14
15
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SM5060-2 User Manual

SM5060-2 User Manual 9
Rear Panel Controls
O/P 600 (Banana socket) :WShort -circuit-proof signal output of the
generator. The output impedance is 600 , and the max. OutputW
amplitude is 20 V (o.c.) or 10 V respectively when terminated with 600 .
pp pp W
FM - IN (Banana socket) : External input for FM.
TRIG (Banana socket) : Trigger output 4 mm Banana socket.
Mains : Mains input 230 V AC 50 Hz 10%.+
Spare Fuse : Spare fuse for mains is kept inside.
17
18
19
20
21
19
21
O/P 600 W
TRIG OUT
17 20
18
FM IN
GND
SCIENTIFIC MES-TECHNIK PVT. LTD.
B-14, POLOGROUND INDL. ESTATE
INDORE 452 015 INDIA
SM5060-2
Power : 230V, 50Hz, 22VA (approx)
Fuse : 0.15 A, Slow, 5x20mm

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SM5060-2 User Manual
Operating Instructions
General Information
The logical front panel layout of ensures rapid familiarization with theSM5060-2
various functions. However, even experienced operators should not neglect to
carefully read the following instructions, to avoid any operational errors and to be
fully acquainted with the instrument when later in use.
After unpacking the instrument, check for any mechanical damage or loose parts
inside.Should there be any transportation damage, inform the supplier
immediately and do not put the instrument into operation.
Safety
The case, chassis and all measuring parts are connected to the protective earth
contact of the inlet. The mains plug shall only be inserted in a socket outlet
provided with a protective earth contact. The protective action must not be negated
by the use of an extension cord without a protective conductor.
WARNING!
ANY INTERRUPTION OF THE PROTECTIVE CONDUCTOR INSIDE OR
OUTSIDE THE INSTRUMENT OR DISCONNECTION OF THE PROTECTIVE
EARTH TERMINAL IS LIKELY TO MAKE THE INSTRUMENT DANGEROUS.
INTENTIONAL INTERRUPTION IS PROHIBITED. THE MAINS/ LINE PLUG
SHOULD BE INSERTED BEFORE CONNECTIONS ARE MADE TO
MEASURING CIRCUITS.
When removing the metal case or replacing, the instrument must be completely
disconnected from the mains supply. If any measurement or calibration
procedures are unavoidable on the opened-up instrument, these must only be
carried out by qualified personnel acquainted with the danger involved.
Operating Conditions
The ambient temperature range during operation should be between + 0 to +40 C
0 0
RH 95% should not exceed -40 C or +70 C during transport or storage. The
0 0
operational position is optional, however, the ventilation holes on the SM5060-2
must not be obstructed. Prior to calibration a preheat run of approx. 30 minutes is
required.

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SM5060-2 User Manual
First Time Operation
After unpacking the instrument check for any mechanical damages. The
instrument should be plugged in mains-plug of proper mains supply 230V 10%.±
On switch ON no undue observation should be noticed. Once the instrument is
switched ON, the power ON is indicated by liting of displays.
Function Selection
The type of output signal is selected with the function selection switch . A total
number of 5 different waveforms - sine, square, triangle ramp & pulse are,
available apart from the DC level. The functions are marked with the corresponding
symbols. If the "OFFSET”pushbutton is activated a DC voltage level is supplied
by the or superimposed on the output signal.SM5060-2
Frequency Adjustment
Coarse adjustment is performed with the range keys. The desired frequency is
selected by turning the FREQUENCY control .
The selected frequency appears on the 4- digit display . Compared to knob
scales, this display has a much higher resolution and accuracy.
Output Amplitude and Signal Connections
Adaptation in decade steps to the desired amplitude range is performed by the use
of two attenuators with -20 dB each, which are activated by pushbuttons & .
Including the continuously adjustable AMPLITUDE control ,the maximum
attenuation amounts to –60 dB. With the maximum amplitude of 10V , the
pp
minimum signal voltage to be supplied is about 10 mV. These values are obtained
when the generator output is terminated with 50 .in the open-circuit condition, theW
available signal amplitude is twice as high. Therefore the maximum output voltage
of the output socket is specified with 20 V .
pp
If exact square-shaped signals are required, care should be taken that only 50 W
coaxial cables are used. Furthermore, this cable must be terminated with a 50 W
through termination. If these precautions are not observed, overshoot may occur,
especially when high frequencies are selected. If test circuits having a 50 inputW
impedance are connected, this termination is not required. In high signal voltage
5
13
9
2
14 16
4

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SM5060-2 User Manual
ranges it should be noted that the used terminating resistor must dissipate the
corresponding effective power.
The output terminal of the SM5060-2 is short circuit proof.
If the output of the unit comes into contact with components of the circuitSM5060-2
under test, which are carrying DC voltage, an isolating capacitor of appropriate
dielectric strength should be connected in series with the output of the generator.
The capacitance of this isolating capacitor should be selected in such way that the
frequency response of the output signal is not affected over the whole frequency
range of the unit.SM5060-2
Trigger Output
In the sine, square and triangle modes, the trigger output (at back panel) supplies a
square signal in synchronism with the output signal. Set up time is considerably
reduced because the fixed logic levels and polarity are ready for direct injection
into any TTL circuits. An offset voltage adjusted at the 50 output has no influenceW
upon the trigger signal. The trigger output is short-circuit proof and can drive
several TTL inputs.
Sweep Facilities
Internal Sweep
The internal sweep facility of the allows checking of filters andSM5060-2
equipment in the frequency range from 0.2 Hz to 2 MHz. Operation is very easy
and is confined to the setting of sweep-speed and sweep-width. Activation is by
simply pressing the pushbutton and can be combined with allSWEEP ON
available functions on the The Stop- frequency is automatically givenSM5060-2.
by the settings of the range selector and the frequency dial and is shown on the 4-
digit display. Start frequency is related to the stop-frequency by the sweep-width
factor. Latter is set by means of the (Sweep) Width potentiometer and is up to
approx . X l00.The sweep speed is set by means of the (Sweep) Speed
potentiometer and ranges from 20 ms to 4 s. For external wobbulation please
refer to "FM input".
FM input
If a positive DC voltage is applied to the FM input on the rear Banana connector of
SM5060-2, the generator frequency increases and is accordingly displayed. A
negative DC voltage reduces the frequency. The frequency displacement depends
on the value and polarity of the DC voltage U and on the FREQUENCY

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SM5060-2 User Manual
setting . The set frequency N (DC voltage not included) can be selected at will.
o
Computation N = N + A.U U = (N-N )/A: or
o o
N N
o= digit display without voltage U ; = digit display including
voltage U
U A= ± voltage at the FM input. ; = 740 (digits per volt).
It should be noted that only the displayed digits are valid; the decimal point is not
taken into consideration (e.g. 100.0 1000 digit). The max. frequency (2 MHz)
cannot and "000" should not be exceeded. Any zeros preceding the decimal point
are dropped.
Limits : N = 3000 N = 300If the highest displayed number is and the smallest , then
o
U +3.6 Vwill be max. The frequency increases by a factor of 10.If the smallest
displayed number is (lower number are possible, but inaccurate) and theN = 30
highest , then will be The frequency changes by a factor ofN = 3000 U - 4 V max.
o
100.The frequency change is linear as a function of the voltage and has the sameU
value in all ranges.
This mode can be used in applications where the periodically required frequencies
are to be set , This will eliminate the repetitive setting of frequency from front panel
via FREQUENCY set knob. Instead set the frequency setting knob to min. and fed
the equivalent DC input from VCF (EXT FM in) at the rear panel, the desired
frequency will be available. Using multiple DC voltages , which may be selected by
a switch or electronically switched , may program a set of frequencies. Such
applications exists in production departments , where signals at several specific
frequencies are required for various tests. FSK (Frequency Shift Keying) signals
also may be generated in this manner.
DC Offset
When the switch OFFSET is depressed, a DC voltage can be superimposed on
the output signal. The maximum offset voltage with open output is ± 5 V. If large DC
offset is added or a large signal is added with DC offset ,make sure that the desired
combination is obtained without clipping. An oscilloscope may be used for proper
setting of DC offset addition.
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SM5060-2 User Manual
Maintenance
There are no user serviceable part inside .Your 2 zSM5060-2 SM5060-2 MH
Function Generator is thoughtfully engineered for ease of use, accuracy and
reliability. The instrument is carefully tested and calibrated using standards
traceable to National Laboratories.
Take care of your instrument by cleaning the exterior of the instrument regularly
with a dusting brush. Dirt which is difficult to remove on the casing & plastic parts,
can be removed with a moist cloth ( 99% water, 1% mild detergent) spirit or
washing benzene (petroleum ether) can be used to remove greasy dirt. The
display may be cleaned with water or washing benzene (but not with spirit-alcohol
solvents), it must then be wiped with a dry clean lint-free cloth. Under no
circumstances the cleaning fluid should get into the instrument. The use of
cleaning agents can attack the plastic & paint surfaces.
Power Line Fuse Replacement
The power line fuse is located on rear panel on lower right side. In case, the
instrument does not show any sign of working, no LCD is lit or there is no display
immediately switch OFF the mains power switch of the instrument and unplug the
mains cord from the mains socket. With the help of small flat blade screwdriver
remove the fuse cap of the fuse holder, located just below the socket. There is one
spare fuse kept in the fuse cap, replace it for the defective one. Turn the cap so
that it locks in place . The rating of the fuse is 150 mA , 250 V , sloblo , 5x20 mm
glass fuse. Do not use a fuse with a higher value other wise it may damage the
instrument in case, the mains voltage goes much higher than the rating of the
mains fluctuation of 10%.±

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SM5060-2 User Manual
Dispatch Procedure For Service
No user serviceable parts are inside the instrument , should it become necessary to
send back the instrument to factory for service, please observe the following
procedure.
Before dispatching the instrument please write to us giving full details of the fault
noticed.
1. After receipt of your communication, our service department. will advise you
whether it is necessary to send the instrument back to us for repairs or the
adjustment is possible in your premises.
2. Dispatch the instrument (only on the receipt of our advise) securely packed
in original packing duly insured and freight paid along with accessories and
a copy of the faults details noticed at our Service Center listed on last page
of this manual, nearest to you.

16 SM5060-2 User Manual
Warranty Conditions
1. Scientific warrants all its Instruments to be free from defects in material and
workmanship when used under normal operating conditions in accordance
with the instructions given in the manual for a period of 12 (Twelve) months
from date of purchase from Scientific or its authorised dealers. The service
during the warranty period will be rendered on return to factory /service center
basis.
2. Its obligation under this warranty is limited to repairing or replacing at its own
discretion. This warranty shall not apply to any defect, failure or damage
caused by accident, negligence, mis-application, alteration or attempt to
repair, service or modify in any way.
3. This warranty does not include LCD, fuses, batteries or accessories. This
warranty is only valid with the original purchaser who must have properly
registered the product within 15 days from date of purchase. No other warranty
is expressed or implied.
4. When it becomes necessary to return the instrument to our Factory facility,
kindly pack it carefully in the original carton or equivalent and ship it duly
insured, transportation charges prepaid.
5. Your Intrx instrument is a complex electronic device and deserves the best
service available by technicians thoroughly familiar with its service and
calibration procedures.