1. Introduktion
This manual provides detailed instructions for the VBESTLIFE 150W 20A Electronic Load. This device is a direct current electronic load designed for testing power batteries and other DC power sources. It features a 2.4-inch TFT color screen and supports four primary working modes: Constant Current (CC), Constant Voltage (CV), Constant Power (CP), and Constant Resistance (CR). It includes various protection mechanisms and calibration functions to ensure accurate and safe operation.
2. Produktet er slutview
The electronic load unit is equipped with a 2.4-inch TFT color screen that displays essential parameters such as voltage, current, power, electricity, capacity, internal resistance, load, operating mode, and protection statuses (OVP, OCP, OPP, stop voltage, time limit discharge). An integrated silent alloy heat sink with an intelligent temperature control system ensures efficient cooling during operation.
3. Specifikationer
| Feature | Beskrivelse |
|---|---|
| Belastningstype | Elektronisk belastning |
| Working Voltage | 12VDC (with 12V, 1A power adapter) |
| Indlæs VoltagRækkevidde | 0-150VDC |
| Load Current Range | 0-20A |
| Belastningseffektområde | 0-150W (max 60W above 120V) |
| Forbindelsesmetode | A+ V+ V- A- four-wire system (downward compatible with two-wire system) |
| Max Power Measurement | 999.999Wh |
| Max Capacity Measurement | 999.999 Ah |
| Cumulative Timing Range | ddd:hh:mm:ss (days:hours:minutes:seconds) |
| Driftstilstande | Constant Current (CC), Constant Voltage (CV), Constant Power (CP), Constant Resistance (CR) |
| Overvoltage-beskyttelse (OVP) | Supports up to 150V |
| Overstrømsbeskyttelse (OCP) | Supports up to 20A |
| Over Power Protection (OPP) | Understøtter op til 150W |
| Begrænset bindtage Discharge | Lav voltage protection, settable |
| Time Limit Discharge | Supports up to 99 hours: 59 minutes |
| Heat Sink | Alloy integrated silent heat sink, automatic operation at ≥40°C or current ＞3A |
| Ekstern temperaturmåling | NTC 3950 10K 1% sensor, 0-100°C range |
| Grænsefladesprog | Chinese and English switching supported |
| Kalibrering | Voltage and Current open calibration supported |
| Displayfunktioner | Screen brightness adjustment, hibernation standby setting |
| Data Management | Zeroing of total data, voltage/current no load nulling, restore factory settings |
| PC Software Online | Ikke understøttet |
| Varestørrelse | 165 x 95 x 80 mm (6.50 x 3.74 x 3.15 tommer) |
| Varens vægt | 400 g (0.88 lb) |
4. Opsætning
4.1 Strømtilslutning
Connect the provided 12V, 1A power adapter to the electronic load unit to power the device. Ensure the adapter is securely connected to a suitable power outlet.
4.2 Indlæs ledninger
The electronic load supports a four-wire wiring method (A+, V+, V-, A-) for precise voltage measurement, as it is not affected by the voltage drop of the connecting wires. This system is also downward compatible with a two-wire connection method. For two-wire connections, simply short-circuit A+ with V+ and V- with A-.
4.3 External Temperature Sensor (Optional)
An external NTC 3950 10K 1% temperature sensor can be connected to monitor the power supply temperature, displaying values from 0-100°C.
5. Driftstilstande
The device offers four distinct operating modes:
- Konstant strøm (CC) tilstand: Maintains a constant current draw from the power source, regardless of voltage udsving.
- Constant Voltage (CV)-tilstand: Opretholder et konstant volumentage across the load, adjusting current as needed.
- Konstant strøm (CP) tilstand: Maintains a constant power dissipation, adjusting current and voltage inversely.
- Konstant modstandstilstand (CR): Simulates a constant resistive load, where current changes proportionally with voltage.
Select the desired operating mode via the device's menu interface to suit your testing requirements.
6. Beskyttelsesfunktioner
The electronic load incorporates several protection mechanisms to safeguard both the device and the connected power source:
- Overvoltage-beskyttelse (OVP): Configurable up to 150V. The device will stop discharging if the input voltage exceeds this limit.
- Overstrømsbeskyttelse (OCP): Configurable up to 20A. Discharge will cease if the current draw surpasses this setting.
- Overstrømsbeskyttelse (OPP): Configurable up to 150W. The device will stop operation if the power dissipation exceeds this value.
- Begrænset bindtage Discharge (Low Voltage beskyttelse): Allows setting a minimum discharge voltage. The device will stop discharging when the power source voltage drops below this threshold, protecting batteries from over-discharge.
- Time Limit Discharge: Allows setting a maximum discharge duration, up to 99 hours and 59 minutes, to prevent prolonged testing.
These protections are designed to operate in a "protects first, then work" mode, effectively preventing damage to the discharge power supplys.
7. Kalibrering
Enheden understøtter voltage and current open calibration through its system menu. This allows for fine-tuning the measurement accuracy. Refer to the on-screen menu for specific calibration procedures.
8. Vedligeholdelse
- Kølesystem: The integrated alloy heat sink fan operates automatically when the internal temperature reaches 40°C or the current draw exceeds 3A. Ensure the fan vents are clear of obstructions for optimal cooling.
- Rensning: Hold enheden ren og fri for støv. Brug en blød, tør klud til rengøring. Brug ikke flydende rengøringsmidler.
- Opbevaring: Opbevar enheden et tørt, køligt sted væk fra direkte sollys og ekstreme temperaturer.
9. Fejlfinding
If you encounter issues with the electronic load, consider the following:
- Enheden tænder ikke: Ensure the 12V, 1A power adapter is correctly connected and functioning. Check the power outlet.
- No load detected or incorrect readings: Verify all wiring connections (A+, V+, V-, A-). Ensure the four-wire system is correctly implemented or shorted for two-wire use. Check the power source being tested.
- Device stops discharging unexpectedly: Check the protection settings (OVP, OCP, OPP, Limited Voltage Discharge, Time Limit Discharge). The device may have triggered one of these protections.
- Fan not running: The fan is temperature-controlled. It will only activate when the internal temperature reaches 40°C or the current exceeds 3A. If the device is hot and the fan is still not running, ensure vents are clear.
Hvis problemerne fortsætter, kontakt kundesupport for at få hjælp.
10. Pakkens indhold
Pakken indeholder:
- 1 x Electronic Load Unit
- 1 x 12V, 1A Power Adapter
- 1 x NTC Sensor
11. Garanti og support
For garantioplysninger og teknisk support henvises til sælgers politikker eller kontakt producenten direkte. Gem din købskvittering til eventuelle garantikrav.