1. Nhanganyaya
This manual provides detailed instructions for the safe and efficient operation of your HANMATEK HM305T Programmable DC Power Supply. The HM305T is a high-precision, adjustable DC power supply designed for laboratory, research, and repair applications, offering stable and reliable power output.
Figure 1: HANMATEK HM305T Programmable DC Power Supply overview, highlighting key features such as overvoltage protection, overcurrent protection, and intelligent temperature control.
2. Key Features
The HANMATEK HM305T is equipped with advanced features to ensure precision, safety, and versatility:
- Kubuda Kwakanyatsojeka: Provides adjustable voltage from 0-30V and current from 0-5A, with a resolution of 10mV and 1mA.
- Four-Digit Display: Simultaneously displays output voltage, current, power, and time with high accuracy.
- Multiple Dziviriro Mabasa: Inosanganisira Over Voltage Protection (OVP), Over Current Protection (OCP), Over Power Protection (OPP), Over Temperature Protection (OTP), and Short-Circuit Protection.
- Kudzora Kunogona Kurongwa: Connects to a PC via USB for software control and programming functions.
- Dual USB Charging Ports: Front-panel 5V 1.5A USB ports for convenient device charging.
- Memory Storage: Six groups of parameter shortcut keys (M1-M6) for quick recall of frequently used settings.
- Fan Inotonhorera Yakangwara: Automatically adjusts fan speed based on temperature to maintain optimal operating conditions.
- Output ON/OFF Switch: One-key control for output, allowing pre-setting of values before activation.
- Kiyibhodhi Kiya: Inodzivirira kuchinja kwetsaona kumasetimu panguva yekushanda.
Figure 2: The HM305T features a high-precision four-digit display for voltage, current, and power, shown alongside other measurement devices for comparison.
3. Package Zviri mukati
Iva nechokwadi chekuti zvinhu zvese zviripo mupakeji kana wabvisa zvinhu mubhokisi:
- HANMATEK HM305T Programmable DC Power Supply
- Power Cable
- USB Kukurukurirana Cable
- Test Leads (Alligator clips)
- Bhuku reMirayiridzo
- Software CD (for PC control)
Figure 3: All items included in the HANMATEK HM305T package, neatly arranged.
4. Chigadzirwa Pamusoroview uye Zvinodzora
Familiarize yourself with the front and rear panels of the power supply.
Figure 4: Detailed diagram of the HM305T's front and rear panels, indicating the location and function of all controls and ports.
Front Panel Controls:
- Voltage Ratidza: Inoratidza huwandu hwezvinobudatage.
- Chiratidziro Chazvino: Inoratidza simba remagetsi rinobuda.
- Kuratidzwa kweSimba/Menyu/Mamiriro: Shows output power, menu options, or status.
- Time/Status Display: Shows output time or status.
- Voltage Setting Key (UCV): Press to adjust voltage.
- Current Setting Key (ICC): Press to adjust current.
- Vhiri reJog Rinotenderera: Used to adjust values when setting voltage kana ikozvino.
- Kupfuura VoltagKiyi Yekugadzika e (OVP): Sets the overvoltage protection limit.
- Kiyi Yekugadzirisa Pari Zvino (OCP): Sets the overcurrent protection limit.
- Chinobuda Chekuvhura/Kudzima: Toggles the power output.
- Memory Shortcut Keys (M1-M6): Store and recall up to six sets of voltage uye zvino parameters.
- List Next/Mode Key: Navigates through lists or changes modes.
- ESC/Keyboard Lock Key: Inobuda pamenyu kana kukiya/kuvhura kiibhodhi.
- Kiyi Yekuchaja Inobuda neUSB Dual (5V/1.5A): Activates the front USB charging ports.
- Zviteshi zvekubuda: Positive (+), Negative (-), and Ground (GND) connections for load.
Rear Panel Zvikamu:
- Kutonhodza Fani: Dissipates heat from the unit.
- USB Kukurukurirana Interface: Connects to a PC for software control.
- AC Simba Inzwa Zvinotaurwa: Connects the power supply to the mains electricity.
- Fuse Holder: Ine fuse inodzivirira.
5. Setup
- Kuiswa: Place the power supply on a stable, level surface with adequate ventilation. Ensure the cooling fan at the rear is not obstructed.
- Power Connection: Connect the provided AC power cable to the AC Power Input on the rear panel and then to a suitable mains power outlet.
- Kubatanidza USB (Zvichida): For PC control, connect the provided USB communication cable from the USB Communication Interface on the rear panel to your computer. Install the software from the included CD or download the latest version from the HANMATEK website.
- Kutanga Kubatidza Press the Power Button on the front panel to turn on the unit. The display will illuminate.
6. Operating Instructions
6.1 Kuisa Voltage uye Current
- Ensure the output is OFF (Output button LED is off).
- Press the UCV (Vhortage Setting) key. The voltage display will start blinking.
- Rotate the Rotating Jog Wheel to adjust the desired voltage. Press the jog wheel to move between digits for fine adjustment.
- Press the ICC (Current Setting) key. The current display will start blinking.
- Rotate the Rotating Jog Wheel to adjust the desired current limit. Press the jog wheel to move between digits.
- Once settings are complete, press the Output button to enable the power output. The Output button LED will illuminate.
6.2 Using Memory Functions (M1-M6)
Figure 5: The memory buttons (M1-M6) allow for quick storage and recall of frequently used voltage uye zvigadziriso zvazvino.
- To Save Settings: Seta vhoriyamu yaunodatage and current. Press and hold one of the memory keys (M1-M6) for approximately 3 seconds until a confirmation beep or display change indicates the settings are saved.
- To Recall Settings: Briefly press the desired memory key (M1-M6). The stored voltage and current values will be loaded.
6.3 Pamusoro VoltagDziviriro ye e (OVP) uye Dziviriro yeOver Current (OCP)
These functions protect your connected load from excessive voltage kana ikozvino.
- Setting OVP: Press the OVP key. The OVP value will blink. Use the Rotating Jog Wheel to set the maximum allowable output voltage. Press OVP zvakare kusimbisa.
- Kugadzika OCP: Press the OCP key. The OCP value will blink. Use the Rotating Jog Wheel to set the maximum allowable output current. Press OCP zvakare kusimbisa.
6.4 Keyboard Lock
Kuti udzivise kuchinja kwezvigadziriso netsaona, dzvanya wobata bhatani rekuti ESC/Lock key for 3 seconds to lock the keyboard. Repeat to unlock.
6.5 Kushandisa Madhoo Ekuchaja Ema USB Aviri
Figure 6: The front panel features two 5V 1.5A USB ports for convenient charging of external devices.
Connect your USB-powered devices to the 5V/1.5A USB ports on the front panel. These ports provide a fixed 5V output at up to 1.5A for charging or powering compatible devices.
6.6 PC Software Kudzora
Figure 7: The PC software interface allows for remote control, data logging, and advanced programming of the HM305T power supply.
Install the provided software on your computer. Connect the power supply to your PC using the USB communication cable. The software allows for remote control of voltage and current, data logging, and advanced programming functions. Refer to the software's dedicated help documentation for detailed usage instructions.
7. Kuchengeta
7.1 Kuchenesa
Regularly clean the exterior of the power supply with a soft, dry cloth. Do not use abrasive cleaners or solvents. Ensure the unit is powered off and disconnected from the mains before cleaning.
7.2 Kutonhora Fani
Figure 8: The rear cooling fan ensures proper heat dissipation for stable operation.
Periodically check the cooling fan and its vents for dust accumulation. Use compressed air to gently clear any dust to ensure proper airflow and prevent overheating. Do not attempt to disassemble the unit to clean the fan.
7.3 Fuse Kutsiva
Figure 9: The fuse holder is located on the rear panel, integrated with the AC power input.
If the unit fails to power on, the fuse may need replacement. Ensure the power supply is disconnected from the mains. Carefully remove the fuse holder from the AC power input socket using a small flat-head screwdriver. Replace the fuse with one of the same type and rating (refer to specifications for details). Reinsert the fuse holder securely.
8. Kugadzirisa matambudziko
- Hapana Simba:
- Check if the power cable is securely connected to both the unit and the mains outlet.
- Verify the mains outlet is functional.
- Check and replace the fuse if necessary (refer to Section 7.3).
- No Output Voltage/Iyezvino:
- Iva nechokwadi chekuti Output button is pressed and its LED is illuminated.
- Check if OVP or OCP limits have been triggered. Adjust limits or reset the unit if protection is active.
- Verify that the load is correctly connected to the output terminals.
- Iva nechokwadi chekuti seti voltage and current values are not zero.
- Kuverenga Kusina kururama:
- Ensure proper connection of test leads to the load.
- Compare readings with a calibrated multimeter to verify accuracy. If significant discrepancies exist, contact support.
- Memory Settings Not Saving (M1-M6):
- Ensure you are pressing and holding the memory key for approximately 3 seconds to save. A brief press will recall.
- If issues persist, try a factory reset (refer to manual for specific procedure, if available, or contact support).
- PC Software Connection Issues:
- Wona kuti tambo ye USB yakabatana zvakachengeteka.
- Ensure the correct drivers are installed on your PC.
- Check the software settings for the correct COM port selection.
9. Safety Information
Observe the following safety precautions to prevent electric shock, injury, or damage to the unit:
- Gara uchibatanidza magetsi panzvimbo inoburitsa magetsi pasi.
- Usashandise mudziyo uyu kana wakanyorova kana kuti wakanyorovaamp mamiriro.
- Usavhura casing of the power supply. There are no user-serviceable parts inside, and doing so voids the warranty and poses a risk of electric shock.
- Ita shuwa kufefetera kwakaringana kutenderedza unit kudzivirira kupisa.
- Usapfuure yakakwira voltage and current ratings of the power supply or the connected load.
- Utilize the Over Voltage Protection (OVP) and Over Current Protection (OCP) features to safeguard your circuits.
- Disconnect the power supply from the mains before performing any maintenance or connecting/disconnecting loads.
- Chengetedza vana kure nemudziyo.
Figure 10: The internal components of the HM305T are designed with multiple protection features including overvoltage, overcurrent, overpower, overtemperature, and short-circuit protection.
10. Zvinotsanangurwa
| Parameter | Value |
|---|---|
| Model | HM305T |
| Kubuditsa Voltage Range | 0-30V |
| Output Current Range | 0-5A |
| Output Power | 150 Watts |
| Voltage Resolution | 10mV |
| Current Resolution | 1mA |
| Display | LED ine manhamba mana (Vhoriyamu)tage, Nguva, Simba, Nguva) |
| Dziviriro Zvimiro | OVP, OCP, OPP, OTP, Short-Circuit |
| USB Kuchaja Ports | 2 x 5V/1.5A |
| Communication Interface | USB |
| Material | PC (Polycarbonate) |
| Dimensions (L x W x H) | 35.61 x 21.49 x 17.81 masendimita (inenge 14 x 8.5 x 7 inches) |
| Kurema | 2.42 kg (inenge 5.34 lbs) |
Figure 11: Approximate dimensions of the HM305T power supply.
11. Warranty uye Tsigiro
The HANMATEK HM305T Programmable DC Power Supply comes with a standard manufacturer's warranty. For specific warranty terms, please refer to the warranty card included in your package or visit the official HANMATEK website.
For technical support, troubleshooting assistance beyond this manual, or warranty claims, please contact HANMATEK customer service through their official channels. Provide your model number (HM305T) and purchase details when contacting support.
