multicomp pro MP751035 User manual

MP751035 and MP751036
Quick Start Guide

Panel
Front Panel
The product has a simple, intuitive and easy to use front panel, as shown in the following figure.
1. Display Screen
4.3inch high resolution TFT color LCD clearly distinguishes the output status of channel 1 and channel
2, function menu and other important information through different colors. The humanized system
interface makes human-computer interaction become easier and improves work efficiency.
2. Function Key
Use Mode, Wave, and Utility key to set the modulation, fundamental wave selection and auxiliary
function.
3. Numerical Keyboard
Digitit key 0-9, decimal point “.”, symbol key “+/-” are used for inputting the parameter. The left key is
used to backspace and delete the previous bit of the current input.
4. Multifunction Knob / Arrow Key
Multifunction knob is used for changing number (rotate clockwise to increase number) or as the arrow
key, press the knob to select the function or to confirm the setup parameter.
When using multifunction knob and arrow key to set the parameter, it is used to switch the digital bits or
clear the previous bit or move (to left or right) cursor position.
5. CH1/CH2 Output Control Key
Quickly to switch the current channel display on the screen (The highlighted CH1 info bar indicates the
current channel, the parameter list displays the relevant information of CH1, so as to set the waveform
parameters of channel 1.) If CH1 is the current channel (CH1 info bar is highlighted), press CH1 key to
quickly turn on/off CH1 output, or press Utility key to pop out the bar and then press CH1 Setting soft
key to set. When channel output is enabled, the indicator light will be illumined, the info bar will display
the output mode (“Wave”, “Modulate” or “Linear”) and output signal of the output port. When CH1 key or
CH2 key is disabled, the indicator light will be extinguished, the info bar will display “OFF” and turn off
the output port.
6. Channel 2
Output interface of CH2
7. Channel 1
Output interface of CH1
8. External Digital Modulation or Frequency Meter Interface or Sync Input Interface
In ASK, FSK and PSK signal modulation, when the modulation source is selected externally, the
modulation signal is input through the external digital modulation interface, and the corresponding
output amplitude, frequency and phase are determined by the signal level of the external digital
modulation interface. When the trigger source of the pulse string is selected to be external, a TTL pulse
with specified polarity is received through the external digital modulation interface, which can start
scanning or output the pulse string with specified number of cycles. When the pulse string mode is
gated, the gating signal is input through the external digital modulation interface. When using the
frequency meter function, the signal (compatible with TTL level) is input through this interface. It is also
possible to output the trigger signal to the pulse string (when the trigger source is selected external, the
trigger output option is hidden in the parameter list, because the external digital modulation interface
cannot be used for input and output at the same time).

9. Menu Operating Soft Key
Select or view the contents of the labels (located at the bottom of the function screen) corresponding to
the soft key labels, and set the parameters with the numeric keypad or multifunction knobs or arrow
keys.
10. Power Supply Switch
Press the power supply switch to turn on the instrument, press it again to turn it off.
11. USB Interface
This instrument supports FAT32 format USB with the maximum capacity of 32G. It can be used to read or import
arbitrary waveform data files stored in USB through USB interface. Through this USB port, the system program
can be upgraded to ensure that the function/arbitrary waveform generator is the latest released program version of
the company.
Notes
1. The channel output interface has overvoltage protective function; it will be generated when the following
condition is met.
2. The amplitude of the instrument is larger than 250mVpp, input voltage is larger than ±12.5V, frequency
is less than 10kHz.
3. The amplitude of the instrument is less than 250mVpp, input voltage is larger than ±2.5V, frequency is
less than 10kHz.
4. When the overvoltage protective function is enabled, the channel automatically disconnects the output.

Rear Panel
As shown in the following figure,
1. Power Output (-PA models only)
Output interface of power
2. USB Interface
The USB interface is used to connect to the host computer software to control the instrument (e.g.,
upgrade the system program to ensure that the current function/arbitrary waveform generator program
is the latest version released by the company).
3. Safety Lock
Safety lock (sold separately) can be used for the instrument stay at fixed position.
4. AC Power Input Interface
AC power specification of MP75103X function/arbitrary waveform generator is 100～240V, 45～440Hz;
Power fuse: 250V, T2A. If the waveform generators needs to output high SNR signal, it is
recommended use the official standard power adaptor.
5. Grounding Connector
It provides an electrical ground connection point for attaching an antistatic wrist strap to reduce
electrostatic damage (ESD) while you are handling or connecting the DUT.

Function Interface
As shown in the following figure,
①②
③
④
⑤
1. CH1 info, the currently selected channel will be highlighted.
“50Ω” indicates the impedance 50Ω to be matched at the output port (1Ω to 999Ω can be adjustable, or
high impedance, the factory default is High).
“” indicates the current mode is sine wave. (In different working modes, it may be "fundamental
wave ", "modulation", "linear", "logarithmic" or "OFF").
2. CH2 info is the same as CH1.
3. Wave parameter list: Display the parameter of the current wave in a list format. If an item indicates
pure white in the list, then it can be set by the menu soft key, numerical keyboard, arrow keys and
multifunction knob. If the bottom color of the current character is the color of the current channel (it is
white when the system is in setting), it means that this character enters the editing state and the
parameters can be set with the arrow keys or numeric keyboard or multifunction knob.
4. Wave Display Area: Display the current wave of the channel (it can distinguish the current belongs to
which channel by the color or CH1/CH2 info bar, the wave parameter will display in the list at the left
side.) Notes: There is no wave display area when the system is set up. This area is expanded into a list
of parameters.
5. Soft Key Label: To identify the function menu soft key and the menu operation soft key. Highlight: It
indicates that the right center of the label displays the color of the current channel or the gray when the
system is in setting, and the font is pure white.

User’s Guide
This manual includes safety requirements, instalment, and the operation of MP751035/36 series
function/arbitrary generator.
Inspecting Packaging and List
When you receive the instrument, please make sure to check the packaging and content for any
damage. If you have any questions about the product or need consulting services, please contact the
distributor.
Safety Requirements
This section contains information and warnings that must be followed to keep the instrument operating under
safety conditions. In addition, user should also follow the common safety procedures.
Safety Precautions
Warning
Please follow the following guidelines to avoid possible electric shock and risk to personal safety.
Users must follow the following conventional safety precautions in operation, service and
maintenance of this device. This device is designed for
professional users and responsible
organizations for measurement purposes.
Do not use this device in any way not specified by the manufacturer. This device is only for
indoor use unless otherwise specified in the product manual.
Safety Statements
Warning
“Warning” indicates the presence of a hazard. It reminds users to pay attention to a certain
operation process, operation method or similar. Personal injury or death may occur if the rules in
the “Warning” statement are not properly executed or observed. Do not proceed to the next step
until you fully
understand and meet the conditions stated in the “Warning” statement.
Caution
“Caution” indicates the presence of a hazard. It reminds users to pay attention to a certain
operation process, operation method or similar. Product damage or loss of important
data may
occur if the rules in the “Caution” statement are not properly executed or observed. Do not
proceed to the next
step until you fully understand and meet the conditions stated in the “Caution” statement.
Note
“Note” indicates important information. It reminds users to pay attention to procedures, methods
and
conditions, etc. The contents of the “Note” should be highlighted if necessary.

Safety Sign
Danger
It indicates possible danger of electric shock, which may cause personal injury
or death.
Warning
It indicates that you should be careful to avoid personal injury or product
damage.
Caution
It indicates possible danger, which may cause damage to this device or other
equipment if you fail to follow a certain procedure or condition. If the “Caution”
sign is present, all conditions must be met before you proceed to operation.
Note
It indicates potential problems, which may cause failure of this device if you fail
to
follow a certain procedure or condition. If the “Note” sign is present, all
conditions must be met before this device will function properly.
AC
Alternating current of device. Please check the region’s voltage range.
DC
Direct current device. Please check the region’s voltage range.
Grounding
Frame and chassis grounding terminal
Grounding
Protective grounding terminal
Grounding
Measurement grounding terminal
OFF
Main power off
ON
Main power on
Power Supply
Standby power supply: when the power switch is turned off, this device is not
completely disconnected from the AC power supply.
CAT I
Secondary electrical circuit connected to wall sockets through transformers or
similar equipment, such as electronic instruments and electronic equipment;
electronic equipment with protective measures, and any high
-voltage and
low
-voltage circuits, such as the copier in the office.
CAT II
CATII: Primary electrical circuit of the electrical equipment connected to the
indoor socket via the power cord, such as mobile tools, home appliances, etc.
Household appliances, portable tools (e.g. electric drill), household so
ckets,
sockets more than 10 meters away from CAT III circuit or sockets more than 20
meters away from CAT IV circuit.
CAT III
Primary circuit of large equipment directly connected to the distribution board
and circuit between the
distribution board and the socket (three-phase
distributor circuit includes a single commercial lighting circuit). Fixed equipment,
such as multi
-phase motor and multi-phase fuse box; lighting equipment and
lines inside large buildings; machine tools and p
ower distribution boards at
industrial sites
(workshops).
CAT IV
Three-phase public power unit and outdoor power supply line equipment.
Equipment
designed to “initial connection”, such as power distribution system of
power
station,
power instrument, front-end overload protection, and any outdoor
transmission
line.

Safety Requirements
•When using electrical appliances basic safety precautions should always be followed.
•Check that the voltage indicated on the rating plate corresponds with that of the local network before
connecting the appliance to the mains power supply.
•This appliance is designed for indoor use only.
•Children shall not play with the appliance.
•There are no user-serviceable parts in this product. Refer servicing to qualified personnel.
•Do not operate this appliance with a damaged plug or cord, after a malfunction or after being dropped
or damaged in any way.
•Disconnect from the supply when not in use.
•Use only the supplied power cord or one of identical specification.
•This appliance must be grounded through the mains cord.
•This device may be damaged by static electricity, so it should be tested in the anti- static area if
possible.
•Before the power cable is connected to this device, the internal and external conductors should be
grounded briefly to release static electricity.
•The protection grade of this device is 4kV for contact discharge and 8kV for air discharge.
•Do not block the ventilation holes at the side and back of this device;
•Do not allow any external objects to enter this device via ventilation holes.
•The recommended calibration period is one year. Calibration should only be carried out by qualified
personnel.
•This device may be damaged by static electricity, so it should be tested in the anti-static area if
possible. Before the power cable is connected to this device, the internal and external conductors
should be grounded briefly to release static electricity. The protection grade of this device is 4kV for
contact discharge and 8kV for air discharge.
•Please use the input / output ports provided by this device in a correct manner. Do not load any input
signal at the output port of this device. Do not load any signal that does not reach the rated value at the
input port of this device. The probe or other connection accessories should be effectively grounded to
avoid product damage or abnormal function. Please refer to the product manual for the rated value of
the input / output port of this device
•If the fuse needs to be replaced, it must be replaced with another one that meets the specified
specifications (Class T, rated current 5A, rated voltage 250V).
•This device should be used indoors in a clean and dry environment with ambient temperature from
10℃～+40℃.
•Do not use this device in explosive, dusty or humid air.
•Do not use this device in a humid environment to avoid the risk of internal short circuit or electric shock.
•Do not use this device in a flammable and explosive environment to avoid product damage or personal
injury.
•Do not block the ventilation holes at the side and back of this device.
•Do not allow any external objects to enter this device via ventilation holes.
•Please ensure adequate ventilation, and leave a gap of at least 15cm on both sides, front and back of
this device.
•Please keep proper ventilation during use, and regularly check the vents and fans.
•The recommended calibration period is one year. Calibration should only be carried out by qualified
personnel.

Environmental Requirements
This instrument is suitable for the following environment:
Indoor use
Pollution degree 2
In operating: altitude lower than 2000 meters; in non-operating: altitude lower than 15000 meters;
Unless otherwise specified, operating temperature is 10 to +40℃; storage temperature is -20 to﹢60℃
In operating, humidity temperature below to +35℃, ≤90％relative humidity;
In non-operating, humidity temperature +35℃to +40℃, ≤60％relative humidity
There are ventilation opening on the rear panel and side panel of the instrument. So please keep the air flowing
through the vents of the instrument housing. To prevent excessive dust from blocking the vents, please clean
the instrument housing regularly. The housing is not waterproof, please disconnect the power supply first and
then wipe the housing with a dry cloth or a slightly moistened soft cloth.
Connect Power Supply
The specification of input AC power:
Voltage Range
Frequency
100-240VAC
（
±10%
）
50/60Hz
100-120VAC
（
±10%
）
400Hz
Please use the attached power lead to connect to the power socket.
This instrument is a Class I safety product. The supplied power lead has good performance in terms of case
ground. This spectrum analyzer is equipped with a three-pin power cable that meets international safety
standards. It provides good case grounding performance for the specification of your country or region.
Please install AC power cable as follow,
1. Ensure the power cable is in a good condition.
2. Leave enough space for connecting the power cord.
3. Plug the attached three-pin power cable into a correctly grounded power socket.
Electrostatic Protection
Electrostatic discharge may cause damage to component. Components can be damaged invisibly by
electrostatic discharge during transportation, storage and use.
The following measure can reduce the damage of electrostatic discharge.
Testing in anti-static area as far as possible.
Before connecting the power cable to the instrument, inner and outer conductors of the instrument should be
briefly grounded to discharge static electricity.
Ensure all the instruments are properly grounded to prevent the accumulation of static.

Preparation
Before connecting to the power supply, check the rating label and power input setting to ensure the instrument is
set to the correct voltage for your local supply.
Press the power switch on the front panel, the instrument will boot-up.
Remote Control
The function/arbitrary waveform generator supports communication with the computer via USB interface.
User can use SCPI via USB interface and combined with programming language or NI-VISA to remote
control the instrument and operating other programmable instrument which is also supports SCPI.
Help Information
This function/arbitrary waveform generator has built-in help system for each function key and menu control key.
Long press any soft key or button to check help information.
Output Fundamental Wave
Output Frequency
The default waveform is a sine wave with frequency 1 kHz, amplitude 100 mV peak-to-peak (connect
with 50Ω port).
The specific steps to change the frequency to 2.5 MHz,
Press Wave ►Sine ►Frequency key in turn, use numerical keyboard to input 2.5 and
then select the unit of the parameter to MHz.
Output Amplitude
The default waveform is a sine wave with amplitude 100 mV peak-to-peak (connect with 50Ω port). The
specific steps to change the amplitude to 300mVpp,
Press Wave ► Sine ► Amp key in turn, use numerical keyboard to input 300 and then select the unit of the
parameter to mVpp.
DC Offset Voltage
DC offset voltage of the waveform is 0V sine wave in default (connect with 50Ω port). The specific steps
to change DC offset voltage to -150mV,
Press Wave ►Sine ►Offset key in turn, use numerical keyboard to input -150 and then select the unit of
the parameter to mVpp.
Notes: Multifunction and arrow key can also be used to set the parameter.
Phase
The phase of the waveform is 0° in default. The specific steps to set the phase to 90°,
Press Phase key, use numerical keyboard to input 90 and then select the unit of the parameter to°.
Duty Cycle of Pulse wave
The default frequency of pulse wave is 1 kHz, duty cycle 50%.
The specific steps to set duty cycle to 25% (limited by a minimum pulse width specification of 22ns),
Press Wave ►Pulse ►Duty key in turn, use numerical keyboard to input 25 and then select the unit of the
parameter to %.
Symmetry of Ramp Wave
The default frequency of ramp wave is 1 kHz, take triangular wave with the symmetry 75% as an example,
Press Wave ►Ramp ►Symmetry key in turn, use numerical keyboard to input 75 and then select the
unit of the parameter to %.

DC
The default DC is 0V.
The specific steps to change DC to 3 V,
Press Wave ►Next Page ►DC key in turn, use numerical keyboard to input 3 and then select the unit of
the parameter to V.
Noise Wave
The default amplitude is 100mVpp, DC offset is 0 V quasi Gaussian noise.
Take the setting of quasi Gaussian noise with amplitude 300mVpp, DC offset 1 V as an example,
Press Wave ► Next Page ► Noise ►Amp key in turn, use numerical keyboard to input 300 and then
select the unit of the parameter to the mVpp press Offset key, use numerical keyboard to input 1 and
then select the unit of the parameter to V.
Power Output
The full bandwidth of built-in power pre-amplifier can reach to 100 kHz, the maximum output power 4W,
output slew rate is greater than 18V/μs.
press CH2 ►PA Output ►On. Power output is enabled which means the power pre-amplifier
output is activated, output interface is on the rear panel, BNC port.
Auxiliary Function
Utility can set the frequency meter, system, power for CH1 and CH2.
Select Utility ►CH1 Setting (or CH2 Setting) to set the channel.
1. Channel Output
Select Channel Output, it can select “OFF” or “ON”.
Notes: Press CH1, CH2 key on the front panel to quick enable the channel output.
2. Channel Reverse
Select Channel Reverse, it can select “OFF” or “ON”.
3. Sync Output
Select Sync Output, it can select “CH1”, “CH2” or “OFF”.
4. On-load
Select Load, input range is 1Ω to 999Ω, or it can select 50Ω, high impedance.
5. Amplitude Limit
It supports amplitude limit output to protect on-load. Select Amp Limit, it can be “OFF” or “ON”.
6. Upper limit of Amplitude
Select Upper to set the upper limit range of the amplitude.
7. Lower limit of Amplitude
Select Lower to set the lower limit range of the amplitude.
Frequency Meter
This function/arbitrary waveform generator can measure the frequency and duty cycle of compatible TTL level
signals. The range of measurement frequency is 100mHz ～200MHz. When use the frequency meter, the
compatible TTL level signal is input via external digital modulation or frequency meter port
(FSK /CNT/Sync connector).
Select Utility ► Frequency Meter to read “frequency”, “period” and “duty cycle” value of the signal in the
parameter list. If there is no signal input, the parameter list of the frequency meter is always display the last
measured value. The frequency meter will only refresh the display if a TTL level compatible signal is input via
an external digital modulation or frequency meter port (FSK/CNT connector).

System
Select Utility ►System key to enter System setting.
Remarks: Due to the system selection menu System, there are two pages, you need to press Next key to turn
page.
1. Start Phase
Select PhaseSync to “Independent” or “Sync”.
Independent: The output phase of CH1 and CH2 output phase is not associated.
Sync: The output start phase of CH1 and CH2 is synchronized.
2. Language
Press Language to set the system language
3. Beep
Set whether has beeper alarm when press the key, press Beep to select ON or OFF.
4. Digital Separator
Set the separator for the numerical value between in parameters of channel, press NumFormat to
select comma, space or none.
5. Backlight
Set the brightness for the backlight of screen, press BackLight to select 10%, 30%, 50%, 70%, 90%
or 100%.
6. Screen Saver
Press ScrnSvr to select OFF, 1 minute, 5 minutes, 15 minutes, 30 minutes or 1 hour. When there is no
arbitrary operation, the instrument enters the screen saver state as the setting time. When Mode turns
blinking, press arbitrary key to recover.
7. Setting
Restore to the factory setting.
8. Help
Built-in help system provides help text for key or menu on the front menu. Help topic can also provide
help text. Long press any one of soft key or button to check help information, such as press Wave key
to check. Press arbitrary key or rotary knob to exit the help.
9. About
Press About to check model’s name, version info and company’s website.
10.Upgrade
The instrument is supports connect to the computer to upgrade, the specific steps as follows:-
a. Connecting to the computer via USB;
b. Press and hold Utility knob to turn on the power supply of signal source and then release the button.
c. Use write tool to write the firmware to the signal source and then restart the instrument.

Troubleshooting
Troubleshooting methods are listed below. Please handle fault using the corresponding steps. If it cannot be
corrected, please contact the distributor and provide the model information (press Utility ►System ►
About to check).
No Display on Screen (Blank Screen)
If the waveform generator displays a blank screen when pressing the power switch on the front panel.
•Inspect whether power source is connected properly.
•Check whether the power button is fully pressed.
•Restart the instrument.
•If all checks fail, please contact the distributor for product maintenance service.
No Waveform Output
In correct setting, the instrument has no waveform output display.
•Inspect whether BNC cable and the output terminal is properly connected.
•Inspect whether CH1, CH2 button is turned on.
•If all checks fail, please contact the distributor for product maintenance service.
Appendix
Maintenance and Cleaning
Keep the instrument away from the direct sunlight.
Keep all liquids away from the instrument or leads to avoid damaging the instrument.
Cleaning
Warning:Always disconnect from the mains before cleaning.
Use a soft cloth to wipe the dust off the casing of the instrument.
When cleaning the LCD screen, please pay attention and protect the transparent LCD screen.
When cleaning the dust screen, use a screwdriver to remove the screws of the dust cover and then remove the
dust screen. After cleaning, reinstall the dust screen in reverse sequence.
For removal of stubborn marks a soft damp cloth with a drop of detergent may be used. Do not use any abrasive
chemical cleaning agent on the instrument or LCD.
Please confirm that the instrument is completely dry before use, do not allow moisture to enter the instrument.
INFORMATION ON WASTE DISPOSAL FOR CONSUMERS OF ELECTRICAL &
ELECTRONIC EQUIPMENT.
When this product has reached the end of its life it must be treated as Waste Electrical &
Electronic Equipment (WEEE). Any WEEE marked products must not be mixed with general
household waste, but kept separate for the treatment, recovery and recycling of the
materials used. Contact your local authority for details of recycling schemes in your area.
Made in China.
PO Box 13362 Dublin 2
LS12 2QQ