BENNING CM 2-1 True RMS Current Clamp Кориснички приручник за мултиметар

1. Увод

The BENNING CM 2-1 is a True RMS current clamp multimeter designed for precise electrical measurements in various applications. This device offers accurate current measurement up to 400 A AC/DC and voltage measurement up to 600 V AC/DC. Key features include an AutoV function with low input impedance (LoZ) to suppress reactive voltage and a low pass filter (HFR high frequency suppression) for measurements on clocked motor drives. It is rated for measurement categories CAT IV 300 V and CAT III 600 V, ensuring safety and reliability.

2. Безбедносне информације

WARNING: Read and understand all safety information and operating instructions before using this instrument. Failure to follow these instructions could result in severe injury or death.

• Always adhere to local and national safety regulations.
• Do not use the multimeter if it appears damaged or if the insulation on the test leads is compromised.
• Ensure the correct function and range are selected before making any measurements.
• Не прекорачујте максималне границе уноса за било коју функцију.
• Будите опрезни када радите са вол.tages above 30 V AC RMS, 42 V AC peak, or 60 V DC, as these pose a shock hazard.
• Always disconnect the test leads from the circuit before changing the function switch.
• Замените батерије када се појави индикатор празне батерије како бисте осигурали тачна очитавања.
• The device is rated CAT IV 300 V and CAT III 600 V. Understand these categories and use the meter only in appropriate environments.

3. Садржај пакета

Проверите да ли су сви предмети присутни и неоштећени приликом распакивања:

• BENNING CM 2-1 True RMS Current Clamp Мултиметар
• Protective carrying bag
• Сет тест проводника (црвени и црни)
• 2 AAA batteries (pre-installed or included separately)

Image 3.1: The BENNING CM 2-1 multimeter shown with its protective carrying bag and test leads.

4. Производ је готовview

The BENNING CM 2-1 features a compact design with a clear digital display, a rotary function switch, and control buttons for various measurement modes.

4.1. Контроле и дисплеј

• Clamp вилица: For non-contact AC/DC current measurement.
• Ротациони прекидач: Selects measurement functions (OFF, LoZ, AutoV, V~, V-, Hz, Ω, A~, A-).
• HOLD/MIN MAX Button: Freezes the current reading or displays minimum/maximum values.
• AC/DC HFR/ZERO Button: Toggles between AC/DC current, activates the low pass filter (HFR), or zeros the DC current reading.
• Приказ: Digital readout for measurement values, units, and indicators.
• Input Jacks (COM, VΩ): За повезивање мерних каблова за волуменtage, resistance, and other measurements.

5. Подешавање

5.1. Инсталација батерије

The BENNING CM 2-1 requires 2 AAA batteries. These are typically included with the device.

1. Уверите се да је мултиметар искључен.
2. Пронађите одељак за батерију на задњој страни уређаја.
3. Користите одвијач да бисте отворили поклопац одељка за батерију.
4. Уметните 2 ААА батерије, водећи рачуна о исправном поларитету (+/-) као што је назначено унутар одељка.
5. Вратите поклопац одељка за батерије и причврстите га завртњем.

6. Упутство за употребу

6.1. Мерење наизменичне/једносмерне струје (Clamp)

To measure AC or DC current without breaking the circuit:

1. Turn the rotary switch to the “A~” or “A-” position.
2. Press the AC/DC HFR/ZERO button to select AC or DC current if necessary. For DC current, press and hold to zero the display before measurement.
3. Отворите цлamp jaw and enclose a single conductor. Ensure the jaw is fully closed.
4. Очитајте тренутну вредност на дисплеју.

Image 6.1: The multimeter measuring current by clamping around a single conductor in an electrical panel.

Image 6.2: A close-up of the BENNING CM 2-1 displaying a current measurement of 10.07 A.

6.2. АЦ/ДЦ Волtagе Мерење

За мерење АЦ или ДЦ волtage:

1. Insert the red test lead into the VΩ jack and the black test lead into the COM jack.
2. Turn the rotary switch to the “V~” for AC voltage or “V-” for DC voltage.
3. Повежите мерне сонде преко кола или компоненте коју треба мерити.
4. Прочитајте књtagе вредност на дисплеју.

Image 6.3: The multimeter measuring voltage using test leads connected to terminals within an electrical cabinet.

Image 6.4: A close-up of the BENNING CM 2-1 displaying a voltage measurement of 124.00 V.

6.3. AutoV Function (LoZ)

The AutoV function with low input impedance (LoZ) helps to suppress 'ghost voltages' or 'reactive voltages' that can appear on unused wires or open circuits due to capacitive coupling. To use:

1. Insert the red test lead into the VΩ jack and the black test lead into the COM jack.
2. Turn the rotary switch to the “LoZ” position. The meter will automatically detect AC or DC voltage.
3. Повежите тест сонде преко кола.
4. Прочитајте књtagе вредност на дисплеју.

6.4. Low Pass Filter (HFR)

The HFR (High Frequency Rejection) low pass filter is used for stable and accurate measurements on variable frequency drives (VFDs) or other noisy electrical environments. To activate:

1. Select the desired AC current (A~) or AC voltage (V~) function.
2. Press and hold the AC/DC HFR/ZERO button until “HFR” appears on the display.
3. Proceed with your measurement as usual. The filter will suppress high-frequency noise components.

7. Одржавање

7.1. Чишћење

Обришите кућиште огласомamp крпу и благи детерџент. Не користите абразивна средства или раствараче. Уверите се да је уређај потпуно сув пре употребе.

7.2. Замена батерије

When the low battery indicator appears on the display, replace the batteries promptly to ensure continued accurate operation. Refer to Section 5.1 for battery installation instructions.

КСНУМКС. Решавање проблема

• Без приказа: Проверите постављање батерија и пуњење. Замените батерије ако је потребно.
• Нетачна очитавања: Ensure correct function and range are selected. Check test lead connections. Verify the clamp jaw is fully closed for current measurements.
• “OL” on Display: Indicates an overload (measurement exceeds the selected range). Select a higher range or ensure the input is within the device's specifications.
• Нестабилна очитавања: Ensure good contact with test probes. For current measurements, ensure only one conductor is within the clamp jaw. Consider using the HFR function in noisy environments.

9. Спецификације

10. Гаранција и подршка

BENNING products are manufactured to high-quality standards. For specific warranty information, please refer to the documentation provided with your purchase or visit the official BENNING website. For technical support, service, or inquiries, please contact your local BENNING distributor or customer service department.