MATRIX TECHNOLOGY MPS-H-3 Series User manual

MPS-H-3 SERIES DC POWER SUPPLY
USER MANUAL
MATRIX TECHNOLOGY INC.
Certification: NOM-001-SCFI-2018 (NMX-I-60950-1-NYCE-2015)

Preface
Respected users:
Hello! Thank you for purchasing a brand-new MATRIX instrument. In order to use this instrument
correctly, please read the full text of this manual carefully before using this instrument, especially
the "safety precautions" part. If you have read the full text of this manual, it is recommended that
you keep this manual properly and place it with the instrument or put it in a place where you can
read it at any time for future use.

Copyright Information
●MATRIX TECHNOLOGY INC. all rights reserved.
●Products are protected by patents in China or other countries, including patents
that have been obtained or are applying for
●MATRIX TECHNOLOGY INC. reserves the right to change product specifications and prices.
●is a registered trademark of MATRIX TECHNOLOGY INC.

Calibration and calibration statement
The company specifically declares that the equipment listed in this manual fully complies with the
specifications and characteristics stated in the company's technical specifications. This instrument
has been verified by our company before leaving the factory. The verification procedures and
steps are in compliance with the specifications and standards of the Electronic Inspection Center.
Product quality assurance
The company guarantees that the new products manufactured by the company have undergone
strict quality confirmation. At the same time, it is guaranteed that within one year of leaving the
factory, if there is any construction defect or part failure of the product, the company is
responsible for repairing it for free. However, if the user changes the circuit, function, or repairs
the instrument and parts or the outer box is damaged, the company will not provide free warranty
service. If all the ground wires are not properly connected in accordance with the regulations or
the machine is not operated in accordance with safety regulations and abnormal conditions occur,
our company will not provide free warranty service. This warranty does not include accessories
that are not produced by our company, such as the accessories of this instrument. During the
one-year warranty period, please return the faulty unit to the maintenance center of our company
or the dealer designated by our company, and the company will repair it properly. If the unit fails
under abnormal use, human negligence, or non-human control, such as earthquake, flood, riot, or
fire and other non-human control factors, the company will not provide free warranty service.
(The company follows the sustainable development strategy and reserves the right to improve the
contents of this manual without prior notice)

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Content
CHAPTER Ι PRODUCT INTRODUCTION......................................................................................................................... 1
CHAPTER Ⅱ TECHNICAL SPECIFICATION..................................................................................................................... 2
2.1 MAIN TECHNICAL SPECIFICATION............................................................................................................................ 2
2.2 SUPPLEMENTARY CHARACTORISTICS.......................................................................................................................2
CHAPTER Ⅲ QUICK START..............................................................................................................................................3
3.1 FRONT PANNEL AND REAR PANNEL INTRODUCTION...........................................................................................3
3.2 PRE INSPECTION.......................................................................................................................................................... 5
3.3 IF THE POWER SUPPLY CANNOT BE POWERED ON............................................................................................... 5
CHAPTER Ⅳ FRONT PANNEL OPERATION................................................................................................................... 6
4.1 KEYBOARD ARRANGEMENT....................................................................................................................................... 6
4.2 FRONT PANNEL OPERATION INTRODUCTION........................................................................................................7
4.3 VOLTAGE SETTING OPERATION.................................................................................................................................7
4.4 CURRENT SETTING OPERATION.................................................................................................................................7
4.5 ACCESS OPERATION....................................................................................................................................................7
4.6 OVP/OCP/SENSE FUNCTION......................................................................................................................................8
4.7 MENU SETTING .....................................................................................................................................................................8

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Chapter 1 Product Introduction
MPS-H-3 series DC power supply is a new generation of high-quality linear DC power supply, both channels
can independently adjust the voltage and current, one fixed 5V/3A output, stable voltage and current automatic
conversion, high stability, high reliability, and high precision . Two channels can display output voltage and
current simultaneously, which has a very high cost-effective advantage.
This series of power supplies have the following characteristics:
• Infinite servo, intelligent fan system,
• With voltage and current preset function,
• Independently control output ON/OFF,
• Over temperature protection （OTP） function,
• 10mV, 1mA high resolution,
• Voltage and current range limit function,
• Both channels can independently adjust voltage and current,
• One-key series and parallel function,
• In parallel mode, positive and negative voltages can be formed.
Chapter 2 Technical Specifications
2.1 Main technical specifications
MPS-H-3 series DC power supply technical specification table:

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2.2 Additional features
Recommended calibration frequency: 1 year/1 time
Cooling method: forced air cooling
Operating environment temperature: 0 to 40 ℃
Storage temperature: -15 to 80 ℃
Use environment: indoor use design, pollution level 2, maximum humidity 80%RH.
Chapter 3 Quick Start
This chapter will briefly introduce the appearance and basic functions of the MPS-3003H-3 series DC power
supply, so that you can quickly know about the MPS-3003H-3 series DC power supply. At the same time, it will
tell you the basic inspections to be done after getting the power supply to ensure the normal operation of the
product.
3.1 Introduction to the front and rear panels
The front panel of MPS-3003H-3 series DC power supply is shown in the figure below.

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Figure 3.1
①CH1 current display window,
②CH1 voltage display window
③CH2 current display window
④CH2 voltage display window
⑤CH1 output switch
⑥CH2 current adjustment knob
⑦CH2 voltage adjustment knob
⑧CH3 overload indicator
⑨CH3 output terminal
⑩CH2 constant pressure indicator
⑪CH2 constant current indicator
⑫CH2 output terminal
⑬CH2 output switch
⑭Ground terminal
⑮CH1 voltage adjustment knob
⑯CH1 output terminal
⑰Instrument power switch
⑱CH1 current adjustment knob
⑲One-key series/parallel/function button
⑳Series and parallel indicator lights
○21CH1 constant current indicator
○22CH1 constant pressure indicator
The rear panel of MPS-H-3 series DC power supply is shown in the figure below.

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Figure 3.2 Rear panel of MPS-H-3 series DC power supply
① Instrument power input socket
② Instrument power input switch
③ Heat dissipation hole
3.2 Pre-check
Please follow the steps below to check the power supply to ensure that the power supply can be used
normally.
1. Inspection
Please check whether you have received the following accessories when you receive the power supply. If any
are missing, please contact your nearest dealer.
□ A power cord (conforms to the voltage standard used in the region)
□ An user manual
□ A warranty card
2. Connect the power cord and turn on the power
After power-on, the power supply first conducts a system self-test, and then enters the standby state.
Warning: A three-core power cord is provided when the power supply is shipped from the factory. Your
power supply should be connected to a three-core junction box. Before operating this power supply, make
sure that the power supply is well grounded.
1
2
3

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3.3 If the power fails to start
Use the following methods to solve the problems you may encounter when turning on the power.
1. Check if the power cord is connected
2. How to replace the fuse
Use a screwdriver to open the small plastic cover under the power input socket on the rear panel of the power
supply (as shown in the figure below), and you can see the fuse. Please use a fuse of the same specification.
Chapter 4 Operation Instructions
This chapter will introduce the operation of the front panel of the power supply in detail, divided into the
following parts:
Voltage/current setting
Output on/off operation
Series/parallel setting operation
Menu setting operation
CH3 function introduction
Introduction of initialization function
Model
Fuse specification
230V
115V
3003H-3
5A
8A
3005H-3
6A
10A
3010H-3
8A
15A
6003H-3
6A
10A
6005H-3
8A
15A

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4.1 Voltage/current setting
When the power supply is in standby or output mode, lightly press the voltage/current knob, the
corresponding setting position on the screen will flash. At this time, you can turn the knob left and right to
change the setting value. When the setting value is flashing, press the knob again to change the setting
position. If no operation is performed on the knob within 5 seconds, the system will automatically exit the
setting state.
Remarks:
1. The voltage/current setting methods of CH1 and CH2 are the same.
4.2 Output on/off operation
1. When the power is on, the ON/OFF button can be used to control the on/off working status of the power output.
Remarks:
1. The "OUTPUT1" button controls the on/off working status of power supply CH1,
2. The "OUTPUT2" button controls the on/off working status of the power supply CH2,
3. In parallel or series mode, the main circuit "OUTPUT2" button controls the power on/off working status,
4. The function of "OUTPUT1" button is invalid in parallel or series mode.
4.3 Series/Parallel setting operation
When the power supply is in standby or output state, lightly press the "one-key series/parallel connection button"
on the left, the power supply will enter the series/parallel working state, and the CH1 current window will prompt the
corresponding working state, as shown in the figure:
Series mode

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Parallel mode
Independent mode
Remarks:
1. Lightly press the "one-key series/parallel/function menu button" on the left once the power supply will enter the
series working state, and the current window will prompt "SE" series and parallel indicator lights to show green, as
shown in the figure "series mode", the output should Connect the negative terminal of CH1 and the positive
terminal of CH2, and the main circuit "OUTPUT2" button controls the power on/off working status.
2. Lightly press the “one-key series/parallel connection/function menu button” on the left. The secondary power
supply will enter the series/parallel operation state, and the current window will prompt the “PA” series/parallel
indicator to show red, as shown in the figure “Parallel Mode”. When the output is recommended to be connected to
the positive and negative ends of CH2, the main circuit "OUTPUT2" button controls the on/off working status of the
power supply. If the current is too large, it is recommended to use a suitable wire to connect the CH1 and CH2
terminals to the positive and the positive externally. Negative and negative are connected together.
3. Tap the left "one-key series/parallel/function menu button" three times, the power supply will return to
independent working state, as shown in the figure "independent mode", the series and parallel indicator lights are
off, and CH1 and CH2 are no longer associated.
4.4 Menu setting operation Long press the left "one-key series/parallel/function menu button" power supply will
enter the menu setting mode, the setting content is as follows:
1. Power-on parameter retention setting: SE1 P-ST ON/OFF (ON is to retain the data at the last power-off, OFF is to
retain the factory default value, use the CH1 current knob to switch menu steps, and use the CH2 voltage knob to
switch ON/OFF Status, tap "One-key series/parallel/function menu button" to exit the menu.)

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2. Output state setting when power on: SE2 P-UP ON/OFF (ON means power-on to keep output status, OFF means
power-on to keep off status, use CH1 current knob to switch menu steps, CH2 voltage knob to switch ON/OFF
status, Tap the "one-key series/parallel/function menu button" to exit the menu.)
3. Buzzer sound setting: SE3 BEEP ON/OFF (ON means the buzzer sound is turned on, OFF means the buzzer
sound is turned off, use the CH1 current knob to switch the menu steps, and use the CH2 voltage knob to
switch the ON/OFF state, light Press "One-key series/parallel/function menu button" to exit the menu.)

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4. CH1 voltage and current lower limit setting: SE4 CH1L 0.000 0.000 (CH2 current display window is the current
lower limit, CH2 voltage display window is the voltage lower limit, use the CH1 current knob to switch menu steps,
lightly press the CH2 current knob current window value Flashing, you can turn the knob left and right to change the
lower limit of current at this time, press the knob to change the setting position, press the CH2 voltage knob, and
the voltage window value flashes, at this time, you can rotate the knob to change the lower limit of voltage, and
press the knob to change Set the position, tap the "one-key series/parallel/function menu button" to exit the menu.)
5. CH1 voltage and current upper limit setting: SE5 CH1L 5.100 31.00 (CH2 current display window is the current
upper limit value, CH2 voltage display window is the voltage upper limit value, use the CH1 current knob to switch
the menu steps, lightly press the CH2 current knob current window value Flashing, you can turn the knob left and
right to change the upper limit of current at this time, lightly press the knob to change the setting position, lightly
press the CH2 voltage knob, the voltage window value flashes, at this time you can rotate the knob left or right to
change the upper limit of voltage, lightly press the knob Set the position, tap the "one-key series/parallel/function
menu button" to exit the menu.)
6. CH2 voltage and current lower limit setting: SE6 CH2L 0.000 0.000 (CH2 current display window is the current
lower limit, CH2 voltage display window is the voltage lower limit, use the CH1 current knob to switch the menu
steps, lightly press the CH2 current knob current window value Flashing, you can turn the knob left and right to
change the lower limit of current at this time, press the knob to change the setting position, press the CH2 voltage
knob, and the voltage window value flashes, at this time, you can rotate the knob to change the lower limit of

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voltage, and press the knob to change Set the position, tap the "one-key series/parallel/function menu button" to
exit the menu.)
7. CH2 voltage and current upper limit setting: SE7 CH2L 5.100 31.00 (CH2 current display window is the current
upper limit value, CH2 voltage display window is the voltage upper limit value, use the CH1 current knob to switch
menu steps, lightly press the CH2 current knob current window value Flashing, you can turn the knob left and right
to change the upper limit of current at this time, lightly press the knob to change the setting position, lightly press
the CH2 voltage knob, the voltage window value flashes, at this time you can rotate the knob left or right to change
the upper limit of voltage, lightly press the knob to change Set the position, tap the "one-key
series/parallel/function menu button" to exit the menu.)
4.5 CH3 function introduction CH3 is a 5V/3A fixed output channel. When the current is greater than about 3A, the
CH3 overload indicator will be lit. When it exceeds 3.3A, the 5V output will be protected. When the light is on or the
load is removed when the output is protected, it will return to normal.
4.6 Introduction to OCP/OVP Function Long press the voltage/current adjustment knob to enter the OVP/OCP
function setting. When the OVP/OCP value is set and the function is on, the CH1/CH2 output voltage or current
exceeds the OVP/OCP setting value. The channel will prompt OVP/OCP and turn off the output. The settings are as
follows:
1. OCP setting: long press the CH1/CH2 current adjustment knob to enter the OCP function setting (as shown in the

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figure below), if you want to change the OCP setting value, you can lightly press the current window number
corresponding to the CH1/CH2 current adjustment knob Flashing, turn the knob left and right to change the setting
value. When in the setting state, lightly press the knob to change the setting position (CH1 current adjustment knob
sets CH1 OCP, CH2 current adjustment knob sets CH2 OCP). If you want to turn on or off the OCP function, you can
lightly press the CH1/CH2 voltage adjustment knob and then turn the knob left and right to change the fixed value
ON/OFF (ON is to open the OCP function, OFF is to close the OCP function, the voltage adjustment knob of CH1
sets the OCP of CH1 The function is turned on/off, and the CH2 voltage adjustment knob sets the OCP function of
CH2 on/off).
2. OVP setting: Long press the CH1/CH2 voltage adjustment knob to enter the OVP function setting (as shown in the
figure below), if you want to change the OVP setting value, you can lightly press the voltage window number
corresponding to the CH1/CH2 current adjustment knob. Flicker: Turn the knob left and right to change the setting
value. In the setting state, press the knob to change the setting position (CH1 voltage adjustment knob sets CH1
OVP, CH2 voltage adjustment knob sets CH2 OVP). If you want to turn on or off the OVP function, you can lightly
press the CH1/CH2 current adjustment knob and then turn the knob left and right to change the fixed value
ON/OFF (ON is to open the OVP function, OFF is to close the OVP function, the current adjustment knob of CH1 is
set to CH1 OVP The function is turned on/off, and the current adjustment knob of CH2 sets the OVP function of CH2
on/off).
3.OCP protection: When the output current exceeds the OCP setting value, the current window of this channel will
prompt "OCP" and turn off the output (as shown in the figure below). The CH1 and CH2 channels have independent
OCP settings and protection functions. The two channels are not related to each other, only the channel exceeding
the set value will be shut down, and the channel will continue to maintain the output state.

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CH1 OCP protection hint CH2 OCP protection hint
4.OVP protection: When the output voltage exceeds the OVP setting value, the voltage window of this channel will
prompt "OVP" and turn off the output (as shown in the figure below). The CH1 and CH2 channels have independent
OVP settings and protection functions. The two channels are not related to each other, only the channel exceeding
the set value will be shut down, and the channel will continue to maintain the output state.
CH1 OVP protection hint CH2 OVP protection hint
4.7 Introduction to Initialization Function Long press the "one-key series/parallel/function menu button" on the left
to turn on the power, the power supply will initialize the "function menu". After the initialization is successful, the
power supply will beep three times "di-di-di", and the settings after initialization are as follows:
1. The power-on parameter remains set to ON: SE1 P-ST ON
2. The output status is set to OFF when power is on: SE2 P-UP OFF
3. Set the buzzer sound to ON: SE3 BEEP ON
4. CH1 voltage and current lower limit is set to the minimum value: SE4 CH1L 0.000 0.000
5. CH1 voltage and current upper limit is set to the maximum value: SE5 CH1L 5.100 31.00
6. CH2 voltage and current lower limit is set to the minimum value: SE6 CH2L 0.000 0.000
7. CH2 voltage and current upper limit is set to the maximum value: SE7 CH2L 5.100 31.00
Remarks:
The initial setting value of the upper limit of voltage and current varies slightly depending on the model. After
initialization, it is the maximum rating of this model.
Safety
Do not install substitute parts on the instrument by yourself or perform any unauthorized modification. Please send
the instrument to our company's maintenance department for repair to ensure that it can be used safely. Please

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refer to the specific warning or caution information in this manual to avoid personal injury or damage to the
instrument.
Safety sign
WARNING He reminds the user of certain operations, practices or conditions that may cause personal injury.
ATTENTION He reminds the user of operational procedures, practices, conditions, etc. that may result in damage to
the instrument or permanent loss of data
〨 grounding
High voltage( Do not turn on the machine without professional knowledge)
△
!See the warnings in the relevant files and pay attention to the tips.（High voltage, please wear gloves when
operating, be careful not to use the machine in safety occasions）
Certification and quality assurance
This series of programmable DC power supplies fully meet the technical indicators stated in the manual. Quality
assurance The company provides a three-year quality guarantee for the materials and manufacturing of this product
from the date of shipment.
Maintenance service
If this product needs to be repaired, please return the product to the repair unit designated by our company. The
customer shall bear the one-way freight for sending the repaired product to the maintenance department of the
company, and the company will be responsible for paying the return freight. If the product is returned to the factory
for repair from other countries, all freight, duties and other taxes must be borne by the customer.
Quality Assurance Limits
The above guarantee does not apply to damage caused by the following conditions:
Customer's incorrect or inappropriate repair of the product;
Customers use other software or interfaces;
Unauthorized modification or misuse;
Operate this product outside the designated environment, or perform configuration and maintenance at a
non-designated maintenance point.
Damage caused by the circuit installed by the customer.
Notice The contents of this manual are subject to change without notice, and the right of interpretation belongs to
our company.