1. Introduction
Thank you for choosing the Jesverty DC Power Supply SPS-3010 and HK33D Digital Multimeter. This comprehensive manual provides detailed instructions for the safe and effective operation, setup, maintenance, and troubleshooting of both devices. Please read this manual thoroughly before use to ensure optimal performance and safety.
2. Safety Information
Always observe the following safety precautions to prevent personal injury or damage to the devices:
- Ensure proper grounding for the DC power supply.
- Do not operate the devices in wet or damp conditions.
- Avoid exceeding the maximum input ratings of the multimeter.
- Always disconnect power before making connections or changing settings on the power supply.
- Use only the specified power cord and accessories.
- Do not attempt to repair or modify the devices; refer servicing to qualified personnel.
- Keep children away from electrical equipment.
Figure 2.1: The Jesverty DC Power Supply SPS-3010 incorporates multiple safety features including short circuit, leakage, thermal, over voltage, and overload protection to ensure safe operation and extend product life.
3. Product Overview
3.1. Jesverty SPS-3010 DC Power Supply
The SPS-3010 is an adjustable switching DC regulated bench power supply designed for various applications. It features high precision 4-digit LED displays for voltage and current, a 5V/2A USB port, and both coarse and fine adjustment knobs for precise control. It operates in both Constant Voltage (C.V.) and Constant Current (C.C.) modes, switching automatically based on load changes.
Figure 3.1: Front and rear panel components of the Jesverty SPS-3010 DC Power Supply.
Component Names:
- Voltage Display
- Current Display
- Power Display
- C.V. Mode Indicator
- C.C. Mode Indicator
- Voltage Knob (Coarse)
- Current Knob (Coarse)
- Voltage Knob (Fine)
- Current Knob (Fine)
- USB Charging Port (5V/2A)
- Output Terminal + (Red)
- Grounding Terminal (Green)
- Output Terminal - (Black)
- Power Switch
- Cooling Fan
- AC Power Inlet
- Fuse Box (Spare Fuse Inside)
3.2. Jesverty HK33D Digital Multimeter
The HK33D is a versatile 6000 Counts digital multimeter capable of accurately measuring AC/DC Voltage, AC/DC Current, Resistance, Capacitance, Live Wire detection, Frequency, Temperature, Duty Cycle, Continuity, and Diode. It features Non-Contact Voltage (NCV) testing, a Live function with sound and light alarm, data retention, °C / °F temperature measurement, flashlight, and max/min data display for enhanced usability.
Figure 3.2: The Jesverty HK33D Digital Multimeter with test leads.
Figure 3.3: Jesverty HK33D Digital Multimeter and included accessories.
4. Setup
4.1. DC Power Supply SPS-3010 Setup
- Unpacking: Carefully remove the power supply from its packaging and inspect for any damage.
- Placement: Place the power supply on a stable, level surface with adequate ventilation around the cooling fan (15).
- Power Connection: Connect the provided AC power cord to the AC Power Inlet (16) on the rear panel and then to a grounded wall outlet.
- Grounding: Ensure the grounding terminal (12) is properly connected to an earth ground for safety.
- Initial Power On: Flip the Power Switch (14) to the 'ON' position. The displays should illuminate.
4.2. Digital Multimeter HK33D Setup
- Battery Installation: Open the battery compartment on the back of the multimeter and insert the required batteries, observing polarity.
- Test Lead Connection: Insert the red test lead into the "VΩmA" or "10A" jack (depending on measurement) and the black test lead into the "COM" jack.
- Power On: Rotate the function dial from "OFF" to the desired measurement function.
5. Operating Instructions
5.1. Operating the SPS-3010 DC Power Supply
- Setting Voltage:
- Turn the Voltage Knob (Coarse) (6) to set the approximate desired voltage.
- Use the Voltage Knob (Fine) (8) for precise adjustments.
- Observe the Voltage Display (1) for the output voltage.
- Setting Current Limit:
- Turn the Current Knob (Coarse) (7) to set the approximate desired current limit.
- Use the Current Knob (Fine) (9) for precise adjustments.
- The Current Display (2) shows the actual output current or the set limit when no load is connected.
- Connecting Load:
- Connect the positive lead of your load to the Output Terminal + (Red) (11).
- Connect the negative lead of your load to the Output Terminal - (Black) (13).
- Ensure connections are secure before applying power to the load.
- C.V. and C.C. Mode:
- The power supply automatically switches between Constant Voltage (C.V.) and Constant Current (C.C.) modes.
- When the load resistance is high, the unit operates in C.V. mode (C.V. indicator (4) illuminates).
- When the load resistance is low and the current reaches the set limit, the unit switches to C.C. mode (C.C. indicator (5) illuminates), maintaining the set current.
- USB Charging Port: The 5V/2A USB Charging Port (10) can be used to power or charge compatible USB devices.
5.2. Operating the HK33D Digital Multimeter
- Function Selection: Rotate the central dial to select the desired measurement function (e.g., V~ for AC Voltage, V- for DC Voltage, A~ for AC Current, A- for DC Current, Ω for Resistance, etc.).
- AC/DC Voltage Measurement:
- Connect test leads in parallel with the circuit.
- Select the appropriate voltage range.
- AC/DC Current Measurement:
- Connect test leads in series with the circuit.
- Ensure the correct input jack (mA or 10A) is used.
- Resistance Measurement:
- Ensure the circuit is de-energized before measuring resistance.
- Connect test leads across the component.
- Capacitance Measurement:
- Discharge capacitors before measurement.
- Connect test leads across the capacitor terminals.
- NCV (Non-Contact Voltage) Function:
- Select the NCV function on the dial.
- Bring the top of the multimeter near a live wire to detect AC voltage without contact.
- An audible alarm and LED indicator will activate if voltage is detected.
- Live Wire Detection:
- Select the Live function.
- Insert the red test lead into the live wire socket. The multimeter will indicate if it's a live wire.
- Temperature Measurement:
- Connect the temperature probe to the multimeter.
- Select the temperature function (°C/°F).
- Place the probe tip on the object to be measured.
- Additional Functions:
- Data Hold: Press the "HOLD" button to freeze the current reading on the display.
- MAX/MIN: Press the "MAX/MIN" button to record the maximum and minimum values during a measurement.
- Backlight/Flashlight: Use the dedicated button to activate the display backlight or the built-in flashlight.
6. Maintenance
- Cleaning: Disconnect power before cleaning. Use a soft, damp cloth with mild detergent to clean the exterior. Do not use abrasive cleaners or solvents.
- Storage: Store the devices in a cool, dry place away from direct sunlight and extreme temperatures. If storing the multimeter for extended periods, remove the batteries to prevent leakage.
- Fuse Replacement (SPS-3010): If the power supply does not turn on, check the fuse in the Fuse Box (17) on the rear panel. Replace with a fuse of the same type and rating.
- Battery Replacement (HK33D): Replace batteries when the low battery indicator appears on the display to ensure accurate readings.
7. Troubleshooting
7.1. DC Power Supply SPS-3010 Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power/Display off | Power cord not connected; Power switch off; Blown fuse | Check power cord connection; Turn power switch on; Replace fuse (refer to Maintenance) |
| No output voltage/current | Output terminals not connected; Voltage/current knobs set to zero; Overload protection activated | Connect load properly; Adjust voltage/current knobs; Reduce load or check for short circuit |
| C.C. indicator always on | Load resistance too low; Output current limit set too low | Increase load resistance; Increase current limit setting |
7.2. Digital Multimeter HK33D Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Display blank or dim | Low battery; Incorrect battery installation; Power off | Replace batteries; Check battery polarity; Turn function dial to ON position |
| "OL" or "1" displayed | Overload; Out of range; Open circuit | Select higher range; Check circuit continuity; Ensure proper connection |
| Inaccurate readings | Low battery; Incorrect function selected; Poor test lead contact | Replace batteries; Select correct function; Ensure firm contact with test points |
8. Specifications
8.1. Jesverty SPS-3010 DC Power Supply Specifications
| Parameter | Value |
|---|---|
| Model Number | SPS-3010 |
| Output Voltage | 0-30 Volts (DC) |
| Output Amperage | 0-10 Amps |
| Display | 4-Digit LED |
| USB Port | 5V/2A |
| Form Factor | Benchtop |
| Protection Features | Short-circuit, Over-load, Grounding, Thermal, Over-voltage |
8.2. Jesverty HK33D Digital Multimeter Specifications
Detailed specifications for the HK33D Digital Multimeter are typically found in its dedicated manual. Below are general capabilities:
- Display: 6000 Counts LCD
- Measurement Functions: AC/DC Voltage, AC/DC Current, Resistance, Capacitance, Live Wire, Frequency, Temperature, Duty Cycle, Continuity, Diode
- Special Features: NCV, Data Hold, MAX/MIN, Flashlight, Backlight, Auto Power Off
- Safety Rating: CAT III 600V (Refer to device for specific ratings)
9. Warranty and Support
For warranty information, technical support, or service inquiries, please contact Jesverty customer service through the retailer's platform or the official Jesverty website. Please have your product model number (SPS-3010 or HK33D) and purchase date available when contacting support.
Manufacturer: Jesverty