方法 から 使用 an 電気 ペン から 測定 電圧
Digital display test pen is a type of test pen, belonging to the category of electrical and electronic tools, used to test whether wires are live. The digital test pen body is equipped with an LED display screen, which can visually read the test voltage numbers. When measuring a live wire, the lighting circuit has a voltage of around U=220V between the live wire and the ground. The resistance of the human body is generally very small, usually only a few hundred to several thousand ohms, while the resistance inside the measuring pen is usually a few megaohms. The current passing through the measuring pen (i.e., the current passing through the human body) is very small, usually less than 1 milliampere. When such a small current passes through the human body, it is not harmful to people, and when such a small current passes through the neon bubble of the measuring pen, Neon bubbles emit light.
手順 用 使用 ボタン:
(A キー) DIRECT, 直接 測定 the ボタン (遠い から 液晶 画面), that is, when using the ドライバー to 直接 接触 the 回路, してください 押す これ ボタン;
(B キー) インダクタンス, 誘導 測定 ボタン (閉じる 液晶 画面), that is, when using the ドライバー to 誘導 接触 with the 回路, してください 押す これ ボタン。
注: 関係なく of how the pen is print, please recognize that the one far away from the lcd screen is the direct measurement key; The one closest to the lcd is the sensing key!
This test pen is appropriate for direct detection of 12-250V AC/DC power and indirect detection of the zero line, phase line, and breakpoint of AC power. It can also measure the on/off of uncharged conductors.
b. When the high break display value is not 70 percent , the low break value is display;
間接 検出:
および ホールド the B キー, 配置 the バッチ ヘッド 閉じる to the 電源 コード If the 電源 コード is live, the 高 電圧 記号 意志 be 表示 オン the ディスプレイ of the デジタル ディスプレイ ペン
ブレークポイント 検出:
The 新しい デジタル ディスプレイ テスト ペン 缶 テスト 12V, 36V, 55V, 110V, and 220V. 一般的に, the 電圧 is 測定 by the point above the test pen, and the highest display is the current test voltage value; The following is an induction test to detect the open circuit of the 絶縁 circuit, which is based on experience。
電圧 検出:
1. The 検出 範囲 is 12-250V AC/DC voltage。
2. 穏やかに タッチ the DIRECT ボタン to 測定 the metal front end of the スタイラス in contact with the object being tested. The stylus is divided into five voltage ranges of 12V, 36V, 55V, 110V, and 220V. The last value on the lcd screen is the measured voltage value (when it is less than 70 percent of the high end display value, the low end value is display)。
いつ 測定 非 接地 直接 電流, 手 すべき 接触 別の 電極 (そのような として 正 または 負)。
誘導 検出:
1. 優しく タッチ インダクタンス ボタン に 測定 the metal front end of the スタイラス 閉じる to the オブジェクト 存在 テスト済み. If the "high voltage symbol" が表示されます on the display screen, it 示す それ the オブジェクト has AC power。
2. When measuring a disconnected wire, lightly touch the INDUCTANCE button, and the metal front end of the measuring pen is close to the insulation outer layer of the wire. There is a disconnection phenomenon, and the "high voltage symbol" disappears at the breakpoint.
3. By using this function, it is easy to distinguish between zero and phase lines (increasing the distance between lines when measuring parallel lines). Detect the radiation and leakage of microwaves.
