1. Bubuka
The OWON CMS101 is a versatile 3-in-1 AC/DC clamp meter designed for comprehensive electrical measurements. It integrates the functionalities of a clamp meter, an oscilloscope, and a data recorder into a single, portable device. With 20,000 counts True RMS, it provides accurate and reliable measurements for a wide range of applications. Its Bluetooth connectivity allows for remote control, data recording, and analysis via a smartphone application.
Fitur konci:
- Multifunctional 3-in-1 Tool: Combines AC/DC clamp meter, oscilloscope, and recorder functions.
- Akurasi luhur: 20,000 counts True RMS for precise measurements.
- Simultaneous Waveform Analysis: Fungsi osiloskop ngukur arus sareng voltasetage waveforms concurrently.
- Bluetooth Data Recording: Connects to smartphones (Android/iOS) via the i-meter app for recording, viewing, comparing, analyzing, and saving measurement data.
- Remote Control & Safety Alerts: Remote operation and customizable alarm thresholds for safety.
- Desain anu ramah-pamaké: 2.8-inch IPS LCD with wide viewing angle, dual-theme display, and 38mm narrow-edge jaw for tight spaces.
- Durable & Convenient: Powered by a 18650 lithium battery for long-term use, tactile button operation, and Non-Contact Voltagdeteksi e (NCV).

Figure 1: The OWON CMS101 highlighting its three core functions: AC/DC Clamp Meter, Recorder, and Oscilloscope.
2. Émbaran Kasalametan
Please read all safety information carefully before using the OWON CMS101. Failure to follow these instructions may result in electric shock, fire, or personal injury.
- Always inspect the device and test leads for damage before use. Do not use if damaged.
- Pastikeun kompartemen batré ditutup pageuh sateuacan dioperasikeun.
- Ulah nerapkeun voltage or current that exceeds the maximum rated values specified in the technical specifications.
- Paké caution nalika gawé bareng voltagnyaeta luhur 30V AC RMS, 42V puncak, atawa 60V DC. Ieu voltagÉta nyababkeun bahaya shock.
- Always disconnect power to the circuit under test before making connections or breaking connections.
- Do not operate the device in explosive atmospheres or in the presence of flammable gases or dust.
- Ensure your hands are dry and wear appropriate personal protective equipment (PPE) when performing electrical measurements.
- Ulah nyobian ngalereskeun atanapi ngarobih alat. Serahkan sadaya perawatan ka tanaga anu mumpuni.
- Adhere to all local and national safety codes.
- Always verify readings with a known good source or secondary method, especially for safety-critical applications.
3. Produk Langkungview
The OWON CMS101 is designed for ease of use and durability. Familiarize yourself with its components and controls.

Figure 2: Product structure diagram with key components and button functions labeled.
Komponén konci:
- Clamp rahang: For non-contact AC/DC current measurement. Features a 38mm narrow-edge design for accessibility.
- LCD IPS Display: 2.8-inch screen with wide viewing angle and dual-theme display for clear readability in various lighting conditions.
- Tombol Fungsi (F1-F4): Context-sensitive buttons for menu navigation and mode-specific operations.
- Tombol Napigasi: Up/Down/Left/Right for menu and setting adjustments.
- Tombol Daya: Short press to power on, long press to power off. Short press after power-on to switch between Oscilloscope and Multimeter modes.
- DMM/OSC Switch: Dedicated button to toggle between Digital Multimeter and Oscilloscope modes.
- Terminal Input: Pikeun nyambungkeun kabel uji pikeun voltage, resistance, continuity, diode, and other measurements.
- Sénsor NCV: Non-Kontak Voltage. Daérah deteksi.
- Kompartemen batré: Houses the 18650 lithium battery.

Figure 3: The 2.8-inch IPS LCD display, demonstrating clear value and waveform visualization with dual theme options.

Figure 4: Details of the OWON CMS101, including the 18650 lithium battery power, full silicone button membrane, and durable ABS rubber-coated design.
4. Setélan
4.1 Pamasangan batré
- Teang tempat panutup kompartemen batre dina tonggong alat.
- Open the cover and insert the provided 18650 lithium battery, ensuring correct polarity.
- Tutup panutup kompartemen batré aman.
4.2 Powering on / Pareum
- Pikeun Ngahurungkeun: Pencét éta POWER tombol sakeudeung.
- Pikeun mareuman: Pencét jeung tahan tombol POWER tombol nepi ka tampilan pareum.
4.3 Bluetooth Connection and App Installation
- Download the "i-meter" application from your smartphone's app store (available for Android and iOS).
- Ensure Bluetooth is enabled on your smartphone and on the CMS101 device.
- Open the i-meter app and follow the on-screen instructions to pair with your CMS101 device.
- Once connected, you can remotely control the device and access data recording features.
5. Operasi
5.1 Switching Modes (Multimeter / Oscilloscope)
After powering on, briefly press the POWER button to toggle between Digital Multimeter (DMM) mode and Oscilloscope (OSC) mode.
5.2 Klamp Meter (AC/DC Current Measurement)
clamp meter function allows for non-contact measurement of AC and DC current up to 1000A.
- Ensure the device is in DMM mode.
- Press the jaw release trigger to open the clamp rahang.
- Posisi clamp jaw around a single conductor (not a bundle of wires) through which the current flows. Ensure the jaw is fully closed.
- Baca nilai ayeuna dipintonkeun dina layar LCD.
- Use the function buttons (F1-F4) to select AC or DC current measurement if not auto-ranging.

Figure 5: The OWON CMS101 in use, measuring current by clampngurilingan konduktor.
5.3 Fungsi Osiloskop
In Oscilloscope mode, the CMS101 can display and analyze current and voltage waveforms simultaneously.
- Switch the device to OSC mode.
- Connect the test leads to the appropriate input terminals for voltage measurement, or use the clamp for current waveform.
- The display will show the waveform. Use the navigation buttons and function buttons (F1-F4) to adjust settings such as time base, voltage range, and trigger.
- The oscilloscope provides measurement values including maximum, minimum, peak-to-peak, and average values.

Figure 6: The device capable of measuring current and voltage waveforms for comprehensive analysis.
5.4 Recorder Function (Data Logging)
The recorder function allows you to log measurement data over time and analyze it using the i-meter smartphone app.
- Ensure the CMS101 is connected to your smartphone via Bluetooth.
- Open the i-meter app and navigate to the recording section.
- Start the recording function. The app will automatically log measured values and display trends graphically.
- Recorded data (in CSV format) can be shared and analyzed on a computer.

Figure 7: The i-meter app displaying recorded data in graphical and tabular formats, with options for file manajemén.
5.5 Other Measurement Functions
The CMS101 supports various other measurement capabilities:
- Voltage (V): AC jeung DC voltage pangukuran.
- Résistansi (Ω): Measures electrical resistance.
- Kontinuitas: Audible alert for continuous circuits.
- Tés Diode: Checks diode functionality.
- Frékuénsi (Hz): Measures signal frequency.
- Non-Kontak Voltage (NCV): Ngadeteksi AC voltage tanpa kontak fisik.
- Tahan Data (HOLD): Freezes bacaan ayeuna dina tampilan.
- Auto Ranging (AUTO): Otomatis milih rentang pangukuran anu pas.
- Pareum Otomatis (APO): Ngahémat umur batre ku cara otomatis mareuman saatos sababaraha waktos teu aktip.
- MAX / Mnt: Ngarékam nilai maksimum sareng minimum salami sési pangukuran.
- RMS leres: Nyayogikeun bacaan anu akurat pikeun bentuk gelombang non-sinusoidal.

Figure 8: Icons representing the various measurement functions available on the OWON CMS101.
6. Pangropéa
6.1 beberesih
To clean the device, wipe the case with a damp lawon sareng deterjen anu hampang. Entong nganggo bahan abrasif atanapi pangleyur. Pastikeun alatna dipareuman sareng dipegatkeun tina sirkuit naon waé sateuacan dibersihkeun.
6.2 Perawatan Batré
- Recharge the 18650 lithium battery when the low battery indicator appears.
- If the device will not be used for an extended period, remove the battery to prevent leakage.
- Buang batré nurutkeun peraturan lokal.
6.3 Panyimpenan
Simpen alat ieu di tempat anu tiis sareng garing, jauh tina sinar panonpoé langsung sareng suhu anu ekstrim. Jauhkeun tina jangkauan barudak.
7. Cara ngungkulan
If you encounter issues with your OWON CMS101, refer to the following common problems and solutions:
| Masalah | Mungkin Cukang lantaranana | Solusi |
|---|---|---|
| Alat teu hurung. | Batré lemah atanapi béak. Pamasangan batré anu salah. | Charge or replace the 18650 lithium battery. Ensure battery is inserted with correct polarity. |
| Inaccurate readings (e.g., non-zero reading with no input, or 0V with mains voltagjeung). | Sensor offset or calibration issue. Environmental interference. Device malfunction. | Perform a zero-adjustment if available in the menu. Ensure no strong magnetic fields are nearby. If problem persists, contact customer support for calibration or service. |
| Sambungan Bluetooth gagal. | Bluetooth not enabled on device/phone. App not installed or outdated. Device too far from phone. | Ensure Bluetooth is active on both devices. Reinstall or update the i-meter app. Keep devices within Bluetooth range. |
| Layarna redup atanapi teu tiasa dibaca. | Low battery. Backlight setting. | Charge the battery. Adjust backlight brightness via menu settings. |
| No reading when clamping. | Clamp jaw not fully closed. Clamping around multiple conductors. Incorrect mode selected. | Ensure jaw is fully closed around a single conductor. Verify correct AC/DC current mode is selected. |
8. Spésifikasi
Below are the technical specifications for the OWON CMS101:
| Fitur | Rincian |
|---|---|
| Nomer modél | OWON-CMS101 |
| Dimensi produk | 24.8 x 9.4 x 3.8 cm |
| Beurat | 820 g |
| Sumber Daya | 18650 Batré Litium |
| tampilan | 2.8 inci IPS LCD |
| Bukaan rahang | 38 mm |
| Ngitung | 20,000 counts True RMS |
| Konektipitas | Bluetooth (Android/iOS app) |
| Sertifikasi | Disertifikasi CE, Patuh RoHS |
| Fungsi | AC / DC Clamp Meter, Oscilloscope, Data Recorder, NCV, True RMS, Max/Min, Hold, Auto Ranging, Auto Power Off, Frequency, Resistance, Continuity, Diode Test |
9. Jaminan & Dukungan
9.1 Émbaran jaminan
OWON products are covered by a limited warranty against defects in materials and workmanship. The specific warranty period may vary by region and product. Please retain your proof of purchase for warranty claims. For detailed warranty terms and conditions, refer to the official OWON websitus atanapi ngahubungan rojongan customer.
9.2 Rojongan Palanggan
If you have any questions, require technical assistance, or need to report a problem with your OWON CMS101, please contact OWON customer support. You can typically find contact information on the official OWON websitus atawa ngaliwatan pangecér Anjeun.
- Dukungan Online: Visit the official OWON website for FAQs, software downloads, and support resources.
- Rojongan Email: Refer to your product packaging or the OWON websitus pikeun alamat surélék rojongan luyu.
- Rojongan Telepon: Contact numbers may be available on the OWON websitus pikeun wewengkon Anjeun.
When contacting support, please have your product model (CMS101) and purchase details ready.