CEM DT-9935 Digital LCR Meter

1. Introduktion

The CEM DT-9935 is a professional digital LCR meter designed for accurate and reliable measurement of inductance (L), capacitance (C), and resistance (R). Featuring an 11000-bit LCD display, series/parallel dual mode, and full-range protection, this meter is an essential tool for electronics enthusiasts, technicians, and engineers. It provides accurate, fast, and secure measurements for a wide range of electrical and electronic testing applications.

2. Nøglefunktioner

• 11000-Bit LCD display for clear readings.
• Series/parallel dual mode for versatile component analysis.
• Full range protection ensures durability and safety.
• Automatic identification of capacitance, inductance, and resistance frequency.
• Accurate, fast, and secure measurement capabilities.
• Sampling rate of 5 times per minute.
• Overrange prompt: "OL" or "-OL".
• Automatisk nedlukning efter 10 minutters inaktivitet for at spare batteri.
• Complies with IEC61000EMC standard for security.

3. Pakkens indhold

Ved udpakning skal du kontrollere, at alle nedenstående varer er til stede og i god stand:

• 1 x CEM DT-9935 Digital LCR Meter
• 1 x Set of Test Leads (Red and Black)
• 1 x Brugermanual (dette dokument)

4. Opsætning

4.1 Batteriinstallation

1. Find batteridækslet på bagsiden af ​​måleren.
2. Åbn dækslet ved at skubbe eller skrue det af.
3. Insert four (4) 1.5V "AA" batteries (15A or IE CLR 6 type recommended), ensuring correct polarity as indicated inside the compartment.
4. Luk batterirummets dæksel forsvarligt.

4.2 Tilslutning af testledninger

1. Insert the red test lead into the positive ("+") input terminal.
2. Insert the black test lead into the negative ("-") input terminal.
3. For guarded measurements, connect the guard leads to the "GUARD" terminals to minimize stray capacitance and improve accuracy.

5. Betjeningsvejledning

5.1 Tænd/sluk

• Tryk på den røde tænd/sluk-knap (MAGT) to turn the meter ON. The meter will perform a self-test and display the default measurement mode.
• Press and hold the power button to turn the meter OFF.

5.2 Measurement Modes and Functions

Safety Precaution: Always discharge capacitors before testing to prevent damage to the meter and ensure user safety. A warning is printed on the device: "Discharge Capacitor Before Testing".

• LCR Measurement (Auto): The meter automatically identifies inductance (L), capacitance (C), and resistance (R). Connect the component to the test leads.
• Function Selection (FUNC): Brug FUNK button to cycle through different measurement parameters such as Cp (parallel capacitance), Cs (series capacitance), Lp (parallel inductance), Ls (series inductance), Rp (parallel resistance), Rs (series resistance), D (dissipation factor), Q (quality factor), and ESR (equivalent series resistance).
• Frequency Selection (FREQ): Brug FREKV button to select the desired test frequency (e.g., 10 KHz).
• Series/Parallel Mode (SER/PAL): Brug SER/PAL button to switch between series and parallel equivalent circuit modes for capacitance and inductance measurements, depending on the component and application.
• Hold Function (HOLD): Tryk HOLDE to freeze the current reading on the display. Press again to release the hold function.
• Relative Measurement (REL%): Brug REL % button for relative measurements, allowing you to measure the difference from a stored reference value.
• Sorting Function (SORTING): Brug SORTERING button for component sorting based on predefined criteria.
• Setup (SETUP): Accesses meter settings.
• Kalibrering (CAL): Used for calibration procedures.
• Enter (ENTER)Bekræfter valg.

6. Vedligeholdelse

6.1 Rengøring

Wipe the meter with a dry, soft cloth. Do not use abrasive cleaners, solvents, or harsh chemicals, as these may damage the casing eller display.

6.2 Udskiftning af batteri

Replace the batteries when the low battery indicator appears on the display to ensure accurate measurements and proper operation.

6.3 Opbevaring

Store the meter in a cool, dry place away from direct sunlight, high humidity, and extreme temperatures. If the meter will not be used for an extended period, remove the batteries to prevent leakage and damage.

7. Fejlfinding

• "OL" or "-OL" Display: This indicates an overrange condition. The measured value exceeds the meter's maximum range for the selected function. Check the component or switch to a higher range if applicable.
• Ingen skærm/strøm: Check battery installation and ensure the batteries have sufficient charge. Verify that the power button is pressed correctly.
• Upræcise aflæsninger: Ensure test leads are properly connected and making good contact with the component. Clean the test leads and terminals if necessary. Perform a calibration if readings remain inconsistent.

8. Specifikationer

8.1 Product Parameters (Technical Indicators)

8.2 Generelle specifikationer

9. Brugertips

• For precise measurements, ensure the test leads are clean and free from corrosion.
• Always double-check the selected measurement mode and frequency for the component being tested.
• The meter's automatic identification feature simplifies testing, but understanding the different parameters (Cp, Cs, Lp, Ls, D, Q, ESR) can enhance diagnostic capabilities.

10. Garanti og support

For garantioplysninger, teknisk support eller serviceforespørgsler, kontakt venligst sælgeren eller producenten direkte. Gem din købskvittering som købsbevis i tilfælde af garantikrav.