1. はじめに
The Jesverty SPS-12003H is a high-precision DC variable power supply designed for various applications including laboratory work, school projects, maintenance, electrolysis, electroplating, brush plating, lamp testing, aging testing, and battery charging. This manual provides detailed instructions for the safe and efficient operation of your device.
主な特徴:
- High-precision encoder knobs for precise voltage and current adjustment (up to 0.01V and 0.001A).
- 4-digit backlit LED display for clear readings in various lighting conditions.
- Integrated 5V/2A USB port with fast charging protocol recognition chip for charging mobile phones and other devices.
- Output enable/disable button to prevent accidental load damage.
- Multiple safety protections: grounding wire, leakage protection, thermal protection, over-voltage protection, over-current protection, and short-circuit protection.
- Intelligent temperature-controlled fan for efficient heat dissipation and extended product lifespan.
- Compact and lightweight design (18 x 8.5 x 15.5 cm, 1.1 kg) for space-saving on the workbench.
2. 安全情報
Please read all safety warnings and instructions carefully before operating the device to ensure safe and proper use. Keep this manual for future reference.
一般的な安全上の注意:
- 電源は必ずアース付きコンセントに接続してください。
- 濡れた状態や濡れた状態でデバイスを操作しないでください。amp 条件。
- 過熱を防ぐため、本体周囲の換気を十分に行ってください。通気口を塞がないでください。
- cを開けないでくださいasing; 内部にはユーザーが修理可能な部品はありません。修理はすべて資格のある担当者にご依頼ください。
- 出力端子への接続または切断を行う前に、電源を切断してください。
- 入力ボリュームを確認してくださいtage matches your local power supply (AC220V 50Hz for EU plug model).
- 出力端子を長時間短絡させないでください。
内蔵の安全機能:
- Grounding Wire: Provides essential protection against electrical shock.
- 漏れ防止: Safeguards against current leakage.
- 熱保護: Automatically shuts down the unit if internal temperature exceeds safe limits.
- オーバーボリュームtage 保護 (OVP): Protects connected loads from excessive voltage.
- 過電流保護(OCP): Prevents damage due to excessive current draw.
- 短絡保護: Safeguards the unit and load in case of a short circuit.
- インテリジェント温度制御ファン: Activates and adjusts speed based on internal temperature, ensuring optimal cooling and extending product life.

画像: 上view of the Jesverty SPS-12003H highlighting its safety features including short-circuit protection, overload protection, overheat protection, and grounding terminal. Also shown are various international plug types and the intelligent cooling fan.
3. パッケージ内容
商品をお受け取りになった後、必ずパッケージの内容をご確認ください。不足品や破損品がございましたら、すぐに販売店までご連絡ください。
- Jesverty SPS-12003H DC Variable Power Supply Unit
- Power Cord (EU plug for this model)
- Output Test Leads (typically alligator clips to banana plugs)
- ユーザーマニュアル(このドキュメント)
4.製品オーバーview
Familiarize yourself with the components and controls of your Jesverty SPS-12003H power supply.

Image: Front panel of the Jesverty SPS-12003H showing the display, control knobs, USB port, and output terminals.
フロントパネルのコンポーネント:
- LEDディスプレイ: 4-digit display showing Voltage (V), Current (A), and Power (W). Includes indicators for OVP, OCP, OPN, RMT, CV, CC.
- 電流ノブ: Encoder knob for adjusting output current. Press to select digit for adjustment.
- 巻TAGEノブ: 出力ボリュームを調整するためのエンコーダーノブtage. Press to select digit for adjustment.
- 5V/2A USBポート: 外部デバイスを充電するための標準 USB-A ポート。
- 電源スイッチ: ユニットの主電源スイッチ。
- OUTPUT Button: Toggles the power output ON/OFF. Long press for advanced settings (OPN, OCP).
- 出力端子:
- GND (Green): アース端子。
- - (Black): マイナス出力端子です。
- + (Red): プラス出力端子。
リアパネルのコンポーネント:
- AC電源入力: 電源コードのコネクタ。
- 冷却ファン: Intelligent temperature-controlled fan for heat dissipation.
5. セットアップ
Follow these steps for initial setup of your power supply.
- 配置: Place the power supply on a stable, flat surface with adequate ventilation. Ensure the cooling fan at the rear is not obstructed.
- 電源接続:
- Ensure the power supply's main power button is in the OFF position.
- Connect the provided power cord to the AC power input on the rear panel of the unit.
- Plug the other end of the power cord into a grounded AC outlet (AC220V 50Hz for EU plug model).
- 出力リード接続:
- Connect the test leads to the output terminals: Red to '+', Black to '-', and Green to 'GND' if grounding is required for your application.
- Ensure connections are secure before applying power to your load.
6. 操作手順
This section details the operation of the Jesverty SPS-12003H.
6.1 電源のオン/オフ
- To power on the unit, press the green 力 ボタンを押します。ディスプレイが点灯します。
- To power off the unit, press the green 力 もう一度ボタンを押します。
6.2 ボリュームの調整tageと現在
The SPS-12003H uses precise encoder knobs for setting voltageと現在の値。

画像: 詳細 view of the encoder knobs for current and voltage adjustment, emphasizing their precision.
- Selecting a Digit: を押す 巻TAGE ノブまたは 現在 knob momentarily. The digit that can be adjusted will start blinking. Press the knob repeatedly to cycle through the digits (e.g., hundreds, tens, units, tenths, hundredths).
- Adjusting Value: Once a digit is blinking, rotate the knob clockwise to increase the value or counter-clockwise to decrease it. The selected digit will blink for approximately 3 seconds after selection or change.
- 精度: The encoder knobs allow for fine adjustments, with voltage precision up to 0.01V and current precision up to 0.001A.

Image: Visual guide demonstrating how to adjust voltage and current by pressing the knob to select a digit and then rotating to change its value.
6.3 出力有効/無効ボタン
の 出力 button controls the power output to your connected load, preventing accidental damage.

Image: Close-up of the output enable/disable button, indicating its function to prevent load damage.
- を押す 出力 button momentarily to toggle the power output ON or OFF.
- When the output is OFF, you can safely adjust voltage and current settings without affecting the connected load.
6.4 USB充電機能
The integrated 5V/2A USB port allows for convenient charging of compatible devices.

Image: The 5V/2A USB port on the front panel, shown charging a mobile phone, demonstrating its fast charging capability.
- Simply connect your USB-compatible device to the 5V/2A USB port on the front panel.
- This port provides a fixed 5V output at up to 2A and supports fast charging protocols.
6.5 画面の明るさ調整
You can adjust the brightness of the LED display for optimal visibility.

Image: Instructions for adjusting screen brightness by simultaneously rotating the CURRENT and VOLTAGE knobs. Rotating right increases brightness, rotating left decreases it.
- To increase brightness, simultaneously rotate both the 現在 そして 巻TAGE ノブを時計回りに回します。
- To decrease brightness, simultaneously rotate both the 現在 そして 巻TAGE knobs counter-clockwise.
6.6 Over Current Protection (OCP) Setting
OCP provides an additional layer of protection by setting a maximum current threshold independent of the normal current limit.

Image: Visual guide for enabling and disabling Over Current Protection (OCP) and setting its value using the CURRENT knob.
- Entering OCP Setting: を押し続けます 現在 button for 3 seconds. The display will show the OCP setting interface. The OCP light will illuminate.
- Setting OCP Value: 回転する 現在 knob to adjust the OCP threshold. Press the knob to select individual digits for precise adjustment.
- Enabling/Disabling OCP:
- To enable OCP, ensure the power display value is '1'. The OCP light will be ON.
- To disable OCP, rotate the 現在 knob left until the power display value is '0'. The OCP light will turn OFF.
- 設定の保存: を押し続けます 現在 ボタンを 3 秒間押して設定を保存し、メイン インターフェイスに戻ります。
6.7 OPN (Output Power On) Function
The OPN function determines the state of the output when the unit is powered on.

Image: Visual guide for enabling and disabling the OPN (Output Power On) function using the OUTPUT button.
- Entering OPN Setting: を押し続けます 出力 button for 3 seconds. The display will show the OPN setting interface.
- Enabling/Disabling OPN:
- To enable OPN (output automatically turns on with power), press the 出力 button momentarily. The power display value will change to '1', and the OPN light will be ON.
- To disable OPN (output remains off when powered on), press the 出力 button momentarily. The power display value will change to '0', and the OPN light will be OFF.
- 設定の保存: を押し続けます 出力 ボタンを 3 秒間押して設定を保存し、メイン インターフェイスに戻ります。
- 注記: The OPN setting is persistent and cannot be canceled by simply turning the unit on and off. You must manually change it in the OPN setting interface.
7. メンテナンス
適切なメンテナンスを行うことで、電源装置の寿命が長くなり、信頼性の高い動作が保証されます。
- クリーニング: 清掃する前に、電源コンセントから電源を抜いてください。表面は柔らかく乾いた布で拭いてください。研磨剤入りの洗剤や溶剤は使用しないでください。
- 換気: 通気口と冷却ファンに埃やゴミが詰まっていないか定期的に確認してください。必要に応じて、圧縮空気を使用して詰まりを取り除いてください。
- ストレージ: 長期間使用しない場合は、電源装置を直射日光や極端な温度を避け、涼しく乾燥した場所に保管してください。
- 検査: Periodically inspect the power cord and test leads for any signs of damage. Replace them if they are frayed or damaged.
8。 トラブルシューティング
このセクションでは、電源装置で発生する可能性のある一般的な問題について説明します。
| 問題 | 考えられる原因 | 解決 |
|---|---|---|
| ユニットの電源が入りません。 | No power from outlet; Power cord loose or damaged; Unit's power button not pressed. | Check AC outlet with another device; Ensure power cord is securely connected; Press the green POWER button. |
| 出力なしvoltage / current。 | Output button is OFF; Short circuit in load; OCP/OVP activated. | Press the OUTPUT button to turn output ON; Check load for short circuits; Check OCP/OVP indicators and resolve issue. |
| ディスプレイが暗い、または判読できない。 | 明るさの設定が低すぎます。 | Adjust screen brightness by rotating both CURRENT and VOLTAGE knobs simultaneously clockwise. |
| Fan is constantly running or very loud. | High internal temperature; Fan vents obstructed. | Ensure adequate ventilation; Clear any obstructions from fan vents. The fan operates based on temperature. |
| 巻tage/Current adjustment is not precise. | Incorrect digit selected for adjustment. | Press the respective knob (VOLTAGE/CURRENT) repeatedly to select the desired digit for fine adjustment. |
9. 仕様
Technical specifications for the Jesverty SPS-12003H DC Variable Power Supply.
| 特徴 | 仕様 |
|---|---|
| モデル番号 | SPS-12003H |
| 入力ボリュームtage | AC 220V 50Hz (EU Plug) |
| 出力巻tage範囲 | 0-120V DC |
| 出力電流範囲 | DC0~3A |
| 最大出力 | 360W |
| 巻tage 表示精度 | 0.01V |
| 現在の表示精度 | 0.001A |
| 表示タイプ | 4桁のLED |
| USB出力 | 5V/2A (USB Type A) |
| 寸法(長さ×幅×高さ) | 18.01 x 8.51 x 15.49 cm(7.09 x 3.35 x 6.1インチ) |
| 重さ | 1.56 kg (3.44 ポンド) |
| 色 | 黒 |
| メーカー | ジェスバーティ |
| 安全保護 | OVP, OCP, OTP, Short-Circuit, Leakage, Grounding |
10. 保証とサポート
Jesverty products are designed for reliability and performance. For warranty information, technical support, or service inquiries, please contact your original point of purchase or visit the official Jesverty website. Please have your model number (SPS-12003H) and purchase date ready when contacting support.
For the most up-to-date information and support resources, please refer to the manufacturer's official channels.




