Tekpower Mastech MS8268 數位萬用電錶使用手冊

介紹

This manual provides detailed instructions for the safe and effective operation of your Tekpower Mastech MS8268 Digital Multimeter. The MS8268 is an auto/manual ranging digital multimeter designed for various electrical measurements. It features a backlit LCD screen and includes sound and light warnings for incorrect test lead connections, enhancing user safety and convenience.

Figure 1: Tekpower Mastech MS8268 Digital Multimeter. This image displays the front view of the multimeter, highlighting its display, function buttons, rotary dial, and input jacks.

主要特點：

• 測量交流/直流電壓tage up to 1000V and AC/DC Current up to 10A.
• Measures Resistance up to 40MΩ, Capacitance up to 200µF, and Frequency up to 200KHz.
• Includes Diode Check, Continuity Test, and hFE (transistor) measurement.
• 非接觸式捲tage（NCV）檢測，以提高安全性。
• Automatic and manual ranging capabilities with relative measurement (excluding frequency).
• LED and sound warnings for incorrect test lead jack usage relative to the function switch setting.
• 藍色LED背光液晶顯示屏，在各種光照條件下都能清楚讀取資料。
• Automatic power-off function (can be disabled) to conserve battery life.
• All ranges are fused (resettable) for circuit protection.

安全資訊

To ensure safe operation and avoid damage to the meter, please read and follow all safety instructions carefully. This device complies with IEC 1010-1 (61010-1@iec:2001), CAT II 1000V, and CAT III 600V safety standards.

一般安全預防措施：

• 在進行任何測量之前，請務必確保萬用電表已設定為正確的功能和量程。
• 永遠不要申請卷tag電流或電流超過所選範圍所規定的最大限值。
• 操作帶電電路時務必格外小心。高電壓tages 可能很危險。
• 若儀表出現損壞或測試線損壞，請勿使用。
• 驗證儀表在已知電壓下的運作情況tage or current source before using it for critical measurements.
• Always connect the common (COM) test lead first and disconnect it last when measuring live circuits.
• 測量時，請將手指放在測試探針的指套後面。
• 為確保讀數準確，請在低電量指示燈亮起時立即更換電池。
• 請勿在易燃易爆氣體、蒸氣或粉塵環境中操作儀表。
• 65 號提案警告： 本產品可能含有加利福尼亞州已知會導致癌症和出生缺陷或其他生殖危害的化學物質。 處理後洗手。

產品結束view

Familiarize yourself with the components of your MS8268 Digital Multimeter before operation.

Figure 2: Labeled diagram of the MS8268 Multimeter. This diagram points out key features including the NCV sensing area, LCD region, function selection buttons, range selection, data hold, backlight, transistor input, rotary switch, and input jacks.

1. NCV感測區域： 用於非接觸式體積測量tage 檢測。
2. LCD Region: Digital display for measurement readings and unit symbols.
3. SEL Measure Function Selection: Button to select sub-functions within a rotary switch position (e.g., AC/DC, Diode/Continuity).
4. RANGE Manual Range Selection Button: 切換自動測距和手動測距。
5. HOLD Data Control: 凍結當前顯示讀數。再次按下即可釋放。
6. B/L Backlight Function: Activates the LCD backlight. Press again to turn off.
7. Transistor Input: Socket for hFE (transistor gain) measurements.
8. Gear Swift (Rotary Switch): Selects the primary measurement function (e.g., Voltage, Current, Resistance, NCV, OFF).
9. 通訊插孔： 所有測量共用（負極）輸入端。
10. VΩHzC Jack: Positive input terminal for Voltage、電阻、頻率、電容、二極體和通斷性測量。
11. mA 傑克： Positive input terminal for current measurements up to 600mA.
12. 傑克： Positive input terminal for current measurements up to 10A.

圖 3：詳細 view of the multimeter's operational areas. This image provides a closer look at the LCD, function buttons, rotary dial, and the clearly labeled input jacks with their respective current limits and safety ratings.

設定

電池安裝：

The MS8268 Multimeter requires three (3) AAA batteries for operation. Batteries are not included with the device.

1. 請確保萬用電錶已關閉。
2. 找到儀表背面的電池倉。
3. Unscrew the two Philips head screws securing the battery cover.
4. 取下電池蓋。
5. 裝入三顆 AAA 電池，注意電池倉內指示的正確極性（+/-）。
6. 裝回電池蓋並用螺絲固定。

圖 4：背面 view of the multimeter, showing the integrated kickstand and the location of the battery compartment cover.

測試線連接：

Always connect test leads to the appropriate jacks for the selected measurement function. The meter features an LED/sound warning system to alert you if leads are connected incorrectly.

• 將黑色測試線連接到 通訊 用於所有測量的（通用）插孔。
• 對於卷tage, Resistance, Frequency, Capacitance, Diode, and Continuity measurements, connect the red test lead to the VΩHzC 傑克。
• 對於高達 600mA 的電流測量，請將紅色測試線連接到 mA 傑克。
• 對於高達 10A 的電流測量，請將紅色測試線連接到 A 傑克。

Figure 5: The MS8268 Multimeter shown with its included red and black test leads, ready for connection to the input jacks.

操作說明

This section details how to perform various measurements using your MS8268 Multimeter.

1. 直流/交流電壓測量tag電子（五）：

1. Turn the rotary switch to the "V" position (DC Voltage) or "mV" position (millivolts).
2. 對於交流電壓tage、按 選擇性EL button to toggle between DC and AC modes if necessary. The display will show "AC" or "DC".
3. 將黑色測試線連接到 通訊 傑克和紅色測試線連接到 VΩHzC 傑克。
4. 將測試探針並聯連接到要測量的電路或元件上。
5. 閱讀卷tagLCD 上的 e 值。

2. Measuring DC/AC Current (A, mA, µA):

1. Turn the rotary switch to the "A", "mA", or "µA" position depending on the expected current range.
2. For AC Current, press the 選擇性EL button to toggle between DC and AC modes if necessary.
3. 將黑色測試線連接到 通訊 傑克。
4. 將紅色測試線連接到 mA 適用於最大電流 600mA 的插孔，或至 A 適用於最大電流 10A 的插孔。
5. 警告： Always connect the meter in series with the circuit. Never connect it in parallel to a voltag測量電流時請勿使用電源，否則可能會燒斷保險絲或損壞儀表。
6. 讀取 LCD 上的目前值。

3. Measuring Resistance (Ω):

1. 將旋轉開關轉到“Ω”位置。
2. 將黑色測試線連接到 通訊 傑克和紅色測試線連接到 VΩHzC 傑克。
3. 測量電阻前，請確保電路或元件已斷電。
4. 將測試探針連接到組件兩端。
5. 讀取液晶顯示器上的電阻值。

4. Measuring Capacitance (F):

1. 將旋轉開關轉到“F”位置。
2. 將黑色測試線連接到 通訊 傑克和紅色測試線連接到 VΩHzC 傑克。
3. 測量前請確保電容器已完全放電，以防止損壞儀表。
4. 將測試探針連接到電容器兩端。
5. 讀取 LCD 上的電容值。

5. Measuring Frequency (Hz):

1. 將旋轉開關轉到“Hz”位置。
2. 將黑色測試線連接到 通訊 傑克和紅色測試線連接到 VΩHzC 傑克。
3. 將測試探針連接到訊號源。
4. 讀取液晶顯示器上的頻率值。

6. Diode Test and Continuity Check:

1. Turn the rotary switch to the "Diode/Continuity" position (often shared with resistance).
2. 按 選擇性EL button to toggle between Diode Test and Continuity Check modes.
3. 將黑色測試線連接到 通訊 傑克和紅色測試線連接到 VΩHzC 傑克。
4. 二極體測試： 將紅色探針連接到二極體的陽極，黑色探針連接到二極體的陰極。正向電壓tage drop will be displayed. Reverse the probes; the display should show "OL" (Open Loop) for a good diode.
5. For Continuity Check: Connect the probes across the circuit or component. If continuity exists (resistance below approximately 50Ω), the meter will emit an audible beep.

7. hFE (Transistor Gain) Measurement:

1. 將旋轉開關轉到“hFE”位置。
2. 確定電晶體是 NPN 還是 PNP。
3. Insert the transistor leads (Emitter, Base, Collector) into the corresponding holes in the "Transistor Input" socket (7 on Figure 2).
4. Read the hFE value on the LCD.

8.非接觸卷tage（NCV）檢測：

1. Turn the rotary switch to the "NCV" position.
2. Move the top part of the meter (NCV Sensing Area, 1 on Figure 2) close to the conductor or circuit you want to test for AC voltage.
3. The meter will emit an audible beep and/or display an indication when AC voltag無需直接接觸即可偵測到電子。

9. Auto/Manual Ranging:

The meter defaults to auto-ranging. To switch to manual ranging, press the RANGE button (4 on Figure 2). Each subsequent press will cycle through available manual ranges. To return to auto-ranging, press and hold the RANGE button or turn the rotary switch to a different function and then back.

10. 數據保持：

按 抓住 button (5 on Figure 2) to freeze the current reading on the display. Press it again to release the hold function and resume live readings.

11. 背光：

按 早/午 button (6 on Figure 2) to activate the blue LED backlight for the LCD. Press it again to turn off the backlight. The backlight may automatically turn off after a short period to conserve battery life.

維護

更換保險絲：

The MS8268 Multimeter is protected by resettable fuses. If the meter fails to measure current, the fuse may need replacement. Always use fuses of the specified type and rating.

• FUSED MAX 10A: 適用於 10A 電流範圍。
• FUSED MAX 600mA: For the mA and µA current ranges.

更換保險絲：

1. 確保儀表已關閉，所有測試線均已中斷。
2. 旋開電池蓋，取出電池。
3. 小心地打開儀表 casing (refer to the internal diagram if available, or consult a qualified technician).
4. Locate the blown fuse and replace it with a fuse of the identical type and rating.
5. 重新組裝儀表，確保所有螺絲都已擰緊。

打掃：

擦拭儀表板上的 casin帶廣告amp 用布和溫和的清潔劑擦拭。請勿使用研磨劑或溶劑。使用前請確保儀表完全乾燥。

貯存：

When the meter is not in use for an extended period, remove the batteries to prevent leakage. Store the meter in a cool, dry place, away from direct sunlight and extreme temperatures.

故障排除

• 儀表無法開機： 檢查電池安裝狀況，確保電池電量充足。如有必要，請更換電池。
• Inaccurate or "0000" readings:
  • Ensure test leads are fully seated in the correct input jacks. The meter's warning system should alert you if they are not.
  • Verify the rotary switch is set to the appropriate function and range.
  • 進行電阻測量時，請確保電路已斷電。
  • If the meter displays "0000" or inconsistent readings, try turning the meter OFF and then ON again to reset it.
  • Check for blown fuses if measuring current.
• 無背光： Press the B/L button. If it still doesn't light, check battery level.
• Auto power-off too soon: The auto power-off feature can be disabled (refer to advanced settings in a full manual if available, or typically by holding a specific button during power-on). The meter will beep before shutting off.

規格

保固和支持

The Tekpower Mastech MS8268 Digital Multimeter comes with a 1年保固 自購買日起，涵蓋材料和工藝缺陷。

For technical support, warranty claims, or service inquiries, please contact the manufacturer or your point of purchase. Please have your model number (MS8268) and purchase date available when contacting support.

• 品牌： Tekpower
• 製造商： RSR電子公司