BENNING CM 2-1 True RMS Current Clamp Multimeter Afowoyi olumulo

1. Ifihan

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. Alaye Aabo

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.
• Rí i dájú pé a yan iṣẹ́ àti ìwọ̀n tó yẹ kí a tó ṣe àwọn ìwọ̀n.
• Maṣe kọja awọn ifilelẹ titẹ sii ti o pọju fun iṣẹ eyikeyi.
• Ṣọ́ra nígbà tí o bá ń ṣiṣẹ́ pẹ̀lú voltages 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.
• Rọpo awọn batiri nigbati ifihan batiri kekere ba han lati rii daju pe o peye awọn kika.
• 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. Package Awọn akoonu

Daju pe gbogbo awọn nkan wa ati pe ko bajẹ lori ṣiṣi silẹ:

• BENNING CM 2-1 True RMS Current Clamp Multimeter
• Protective carrying bag
• Ṣeto awọn itọsọna idanwo (pupa ati dudu)
• 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. Ọja Ipariview

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. Awọn iṣakoso ati Ifihan

• Clamp Ẹrẹ: For non-contact AC/DC current measurement.
• Yiyi pada: 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.
• Ifihan: Digital readout for measurement values, units, and indicators.
• Input Jacks (COM, VΩ): Fun sisopọ awọn itọsọna idanwo fun voltage, resistance, and other measurements.

5. Eto

5.1. Fifi sori batiri

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

1. Rii daju pe multimeter ti wa ni pipa.
2. Wa ibi ipamọ batiri naa ni ẹhin ẹrọ naa.
3. Lo screwdriver lati ṣii ideri iyẹwu batiri naa.
4. Insert the 2 AAA batteries, observing the correct polarity (+/-) as indicated inside the compartment.
5. Rọpo ideri kompaktimenti batiri ki o ni aabo pẹlu dabaru.

6. Awọn ilana Iṣiṣẹ

6.1. Ìwọ̀n Ìṣàn AC/DC (Cl)amp)

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. Ṣii clamp Àgbọ̀n kí o sì so ìtọ́sọ́nà kan ṣoṣo mọ́ ọn. Rí i dájú pé àgbọ̀n náà ti sé pátápátá.
4. Ka iye lọwọlọwọ lori ifihan naa.

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. AC / DC Voltage Idiwon

Lati wiwọn AC tabi DC voltage:

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. So àwọn ìwádìí ìdánwò pọ̀ mọ́ ara wọn ní gbogbo àyíká tàbí èròjà tí a fẹ́ wọ̀n.
4. Ka voltage iye lori ifihan.

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. Connect the test probes across the circuit.
4. Ka voltage iye lori ifihan.

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. Itọju

7.1. Ninu

Pa ọran naa pẹlu ipolowoamp Aṣọ àti ọṣẹ ìfọṣọ díẹ̀. Má ṣe lo àwọn ohun ìfọṣọ tàbí àwọn ohun tí ó ń yọ́ nǹkan. Rí i dájú pé ẹ̀rọ náà gbẹ pátápátá kí o tó lò ó.

7.2. Batiri Rirọpo

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.

8. Laasigbotitusita

• Ko si Ifihan: Ṣàyẹ̀wò fífi bátìrì sílẹ̀ kí o sì gba agbára. Rọpò bátìrì tí ó bá pọndandan.
• Awọn kika ti ko tọ: 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.
• Awọn kika aiduroṣinṣin: 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. Awọn pato

10. Atilẹyin ọja ati Support

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.