1. ບົດແນະນຳ
This manual provides essential information for the safe and effective operation of your MATRIX APS-4000B Programmable Bench AC Power Supply. The APS-4000B is a single-phase SPWM variable frequency AC power source designed for precise control of AC voltage, current, and frequency. It features a 700VA capacity, with output ranges of 0-150V/0-6A or 0-300V/0-3A, and a frequency range of 45-250Hz. Please read this manual thoroughly before use and retain it for future reference.
2. ຂໍ້ມູນຄວາມປອດໄພ
Always observe the following safety precautions to prevent injury and damage to the instrument:
- ການຕໍ່ດິນ: ໃຫ້ແນ່ໃຈວ່າການສະຫນອງພະລັງງານໄດ້ຖືກຮາກຖານຢ່າງຖືກຕ້ອງເພື່ອປ້ອງກັນການຊ໊ອກໄຟຟ້າ.
- ແຫຼ່ງພະລັງງານ: Connect the unit to an AC power source within the specified voltage and frequency range (99-121 Vac, 47-63Hz).
- ການລະບາຍອາກາດ: ຢ່າອຸດຕັນຊ່ອງລະບາຍອາກາດ. ຮັບປະກັນໃຫ້ມີກະແສລົມໄຫຼວຽນພຽງພໍອ້ອມຮອບເຄື່ອງເພື່ອປ້ອງກັນຄວາມຮ້ອນເກີນໄປ.
- ສະພາບແວດລ້ອມ: Operate the power supply in a dry environment, away from moisture, dust, and corrosive gases.
- ການບໍລິການ: ໃຫ້ພະນັກງານທີ່ມີຄຸນວຸດທິບໍລິການທັງໝົດ. ຢ່າພະຍາຍາມເປີດ ຫຼື ສ້ອມແປງເຄື່ອງດ້ວຍຕົວທ່ານເອງ.
- ການເຊື່ອມຕໍ່ຂາອອກ: Ensure all output connections are secure before applying power.
3. ຄຸນລັກສະນະຂອງຜະລິດຕະພັນ
- ຂໍ້ມູນຈໍາເພາະຂອງຜົນຜະລິດ: Low range 0-150V/0-6A/0-700VA, High range: 0-300V/0-3A/0-700VA.
- ປ້ອນຂໍ້ມູນ: Single phase 99-121 Vac, 47-63Hz.
- ຄວາມລະອຽດ: 0.1V/10mA.
- ຄວາມຖີ່: 45-250Hz, step 0.1Hz.
- ການໂຕ້ຕອບ: RS232C for remote control.
- ຊອບແວ PC: Free APS-4000 Series PC software provided for remote control via RS-232C.
- ຄວາມຫນ້າເຊື່ອຖືສູງ: Utilizes advanced Direct Digital Frequency Synthesizer (DDS) waveform for high frequency stability and accurate measurements.
- Intelligent Analyzing Function: Automatically identifies failure causes and displays error codes.
- ຟັງຊັນເລີ່ມຕົ້ນອ່ອນ: Prevents damage from instantaneous impulse current during power-on.
- ທາງລັດແປ້ນພິມ: Customizable shortcuts for 110V, 220V, 50Hz, 60Hz.
- Measuring Function: ສະແດງ voltage, current, frequency, power, and power factor.
- ຟັງຊັນຫນ່ວຍຄວາມຈໍາ: Five sets of memory (M1-M5) to store commonly used voltage and frequency settings for quick recall.
- ຟັງຊັນລັອກກະແຈ: Prevents inadvertent changes to settings.
- ການໂຕ້ຕອບຜູ້ໃຊ້: Push-down infinite coding knob switch for adjustments, 4-window 5-digit display.
- ການແຍກດ່ຽວ: Input and output are isolated for safety.
4. ເນື້ອໃນຊຸດ
The package for the MATRIX APS-4000B Programmable AC Power Supply includes:
- 1 x MATRIX APS-4000B Programmable AC Power Supply
- 1 x RS-232C Cable
- ສາຍໄຟຟ້າ 1 x
- 1 x ຄູ່ມືຜູ້ໃຊ້ (ເອກະສານນີ້)
5. ຕັ້ງຄ່າ
Follow these steps to set up your power supply:
- ການຫຸ້ມຫໍ່: ຄ່ອຍໆຖອດແຫຼ່ງຈ່າຍໄຟ ແລະ ອຸປະກອນເສີມທັງໝົດອອກຈາກການຫຸ້ມຫໍ່. ກວດສອບຄວາມເສຍຫາຍບໍ່.
- ການຈັດວາງ: Place the unit on a stable, level surface with adequate ventilation space around it. Ensure the heat dissipation holes are not obstructed.
- ການຕໍ່ດິນ: Connect the ground terminal on the rear panel to a reliable earth ground using an appropriate wire.
- ການເຊື່ອມຕໍ່ຂາເຂົ້າ AC: Connect the provided power cord to the AC Input outlet on the rear panel and then to a suitable grounded AC power source.
- ໂຫຼດການເຊື່ອມຕໍ່: Connect your load to the Output jack on the rear panel. Ensure connections are secure and correct polarity is observed if applicable.
- RS-232C Connection (Optional): If using PC control, connect the RS-232C cable from the power supply's RS-232 port to your computer. Install the provided PC software.

ຮູບທີ 5.1: ການເຊື່ອມຕໍ່ແຜງດ້ານຫລັງ
This image displays the rear panel connections of the power supply. Key components include the RS-232 serial port for PC communication, a heat dissipation fan, the main AC output jack, a fuse protection cover, a ground terminal for safety, and the AC input power outlet.
6. ຄໍາແນະນໍາການດໍາເນີນງານ
This section details the basic operation of the MATRIX APS-4000B.

ຮູບທີ 6.1: ແຜງດ້ານໜ້າເກີນview
The front panel features a multi-window digital display for voltage, current, power, and frequency. It includes control knobs for adjustment, various function buttons for settings and shortcuts, and the main power switch.
- ເປີດ/ປິດ: Press the main POWER switch on the front panel to turn the unit on or off.
- Setting Output Parameters:
- Use the push-down infinite coding knob switch to navigate through the display parameters (Voltage, Current, Frequency).
- Press the knob to select a parameter, then rotate it to adjust the value. Press again to confirm or move to the next digit.
- The 4-window 5-digit display shows the set and measured values.
- ທາງລັດແປ້ນພິມ: Utilize the dedicated shortcut buttons for quick setting of common voltages (110V, 220V) and frequencies (50Hz, 60Hz). These can be self-assembled/configured.
- Memory Functions (M1-M5): The unit allows storing up to five sets of frequently used voltage (V) and frequency (F) settings. Refer to the detailed programming manual for saving and recalling these settings with a single key.
- ຟັງຊັນລັອກກະແຈ: To prevent accidental changes to settings, activate the Key LOCK function. This will disable the front panel controls. Refer to the display for 'LocH' status.
- ຟັງຊັນເລີ່ມຕົ້ນອ່ອນ: The power supply incorporates a soft start function to protect both the unit and the load from sudden current surges upon activation.
- Measuring Function: The display provides real-time measurements of voltage (Vrms), current (Arms), frequency (Fre), power (Wattage), and power factor (PF).
- ການຄວບຄຸມຊອບແວຄອມພິວເຕີ: For advanced control and automation, use the provided PC software. Connect via the RS-232C interface. The software supports commands in ASCII and HEX codes.

Figure 6.2: Practical Features Display
This image shows three practical features on the display: 'LocH' for Key Lock function (ON/OFF), 'P-UP' for Power On Output Status (ON/OFF/AST), and 'S-LE' for Output Delay Setting (0-359 seconds).
Video 6.3: APS-4000 Series Programmable AC Power Supplies Demonstration
This video provides a visual demonstration of the MATRIX APS-4000 Series Programmable AC Power Supplies, showcasing its features and operational aspects.
7. ບໍາລຸງຮັກສາ
Proper maintenance ensures the longevity and reliable operation of your power supply:
- ທໍາຄວາມສະອາດ: Regularly clean the exterior of the unit with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- ການລະບາຍອາກາດ: Keep the heat dissipation holes clear of dust and debris. Use compressed air to gently clean the fan area if necessary.
- ການເກັບຮັກສາ: When not in use for extended periods, store the power supply in a cool, dry place, protected from extreme temperatures and humidity.
- ການທົດແທນຟິວ: If the fuse blows, replace it only with a fuse of the same type and rating as specified in the specifications. Ensure the unit is disconnected from the main power before replacing the fuse.
8. ການແກ້ໄຂບັນຫາ
ພາກນີ້ໃຫ້ຄໍາແນະນໍາສໍາລັບບັນຫາທົ່ວໄປ. ສໍາລັບບັນຫາທີ່ຊັບຊ້ອນ, ຕິດຕໍ່ສະຫນັບສະຫນູນດ້ານວິຊາການ.
- ບໍ່ມີພະລັງງານ: Check the power cord connection, the main power switch, and the fuse on the rear panel. Ensure the AC input voltage ຢູ່ໃນຂອບເຂດທີ່ກໍານົດໄວ້.
- ບໍ່ມີຜົນຜະລິດ: Verify that the output is enabled. Check for any active protection mechanisms (e.g., overcurrent, overload).
- ການປົກປ້ອງກະແສໄຟຟ້າເກີນ: If the load current exceeds the set limit, the output will be turned off, and an audible/visual alarm will activate. Reduce the load or increase the current limit if appropriate.

Figure 8.1: Overcurrent Protection Display
This image illustrates the power supply's display indicating an 'Overcurrent protection' status. When the load current exceeds the set limit, the output is automatically turned off, and an audible and visual alarm is activated.
- Intelligent Analyzing Function: The unit can automatically diagnose certain failures and display corresponding error codes. Consult the detailed programming manual for a list of error codes and their meanings.
- ການອ່ານທີ່ບໍ່ຖືກຕ້ອງ: Ensure proper connections and calibration. If issues persist, contact support.
9. ຂໍ້ມູນຈໍາເພາະ
Detailed technical specifications for the MATRIX APS-4000B (700VA) model:

Figure 9.1: APS-4000 Series Specifications Overview
This table provides detailed technical specifications for the APS-4000 series, comparing models A, B, and C. It covers parameters such as capacity (VA), working mode, input and output voltage/current ranges, frequency, resolution, communication interface, protection features, and physical dimensions. Refer to the 'APS4000B' column for this specific model.
| ພາລາມິເຕີ | Value (APS-4000B) |
|---|---|
| ຊື່ຕົວແບບ | APS-4000B |
| ຍີ່ຫໍ້ | MATRIX |
| ຜົນຜະລິດວັດtage | 700 ວັດ |
| ວິທີການເຮັດຄວາມເຢັນ | ອາກາດ |
| ຂະໜາດລາຍການ (L x W x H) | 14.6 x 17 x 6 ນິ້ວ |
| ນ້ໍາຫນັກລາຍການ | 41 ປອນ |
| ຜູ້ຜະລິດ | MATRIX TECHNOLOGY INC. |
| ໝາຍເລກສ່ວນ Mfr | APS-4000B-110VIN |
| ສື່ໃນຕົວ | Programmable AC Power Supply, RS-232 cable |
| ໄລຍະການປ້ອນຂໍ້ມູນ | Single Phase (1∅2W) |
| ການປ້ອນຂໍ້ມູນ Voltage | 99-121 ວາ |
| ຄວາມຖີ່ຂອງການປ້ອນຂໍ້ມູນ | 47-63Hz |
| ຜົນໄດ້ຮັບ Voltage ຂອບເຂດ | 0-150VAC / 0-300VAC (Auto) |
| Output Current (L=120V) | 6A |
| Output Current (H=240V) | 3A |
| ຂອບເຂດຄວາມຖີ່ຂອງຜົນຜະລິດ | 45-250Hz (0.1 Step) |
| ສະບັບtage ຄວາມລະອຽດ | 0.1V |
| ການແກ້ໄຂໃນປະຈຸບັນ | 10mA |
| ການແກ້ໄຂຄວາມຖີ່ | 0.1Hz |
| ການໂຕ້ຕອບການສື່ສານ | RS-232C |
| ສະພາບແວດລ້ອມການດໍາເນີນງານ | 0-40℃, 20-80% RH |
10. ການຮັບປະກັນແລະການສະຫນັບສະຫນູນ
ການຮັບປະກັນ: The MATRIX APS-4000B Programmable Bench AC Power Supply comes with a 3-year warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use.
ສະຫນັບສະຫນູນ: For technical assistance, troubleshooting, or warranty claims, please contact MATRIX TECHNOLOGY INC. OFFICIAL STORE. Our dedicated support team is available to provide assistance and ensure your satisfaction with MATRIX products.