UNI-T UT33C Digital Handheld Multimeter Instruction Manual

1. Bubuka

This manual provides detailed instructions for the safe and effective operation of the UNI-T UT33C Digital Handheld Multimeter. The UT33C is a compact, battery-powered device designed for measuring DC/AC voltage, DC current, resistance, diode, continuity, and temperature. Please read this manual thoroughly before use to ensure proper functionality and safety.

2. Émbaran Kasalametan

WARNING: To avoid electric shock or personal injury, read and understand all safety information before using this multimeter.

• Always ensure the test leads are correctly inserted into the appropriate input jacks for the measurement being performed.
• Do not exceed the maximum input values specified for each range. Refer to the specifications section.
• Never use the multimeter if it appears damaged or if the test leads are damaged.
• Ulah ngajalankeun multimeter dina gas ngabeledug, uap, atawa lingkungan berdebu.
• Pareuman heula daya sirkuitna terus kaluarkeun sadaya voltase luhurnatage kapasitor saméméh nguji lalawanan, continuity, atawa dioda.
• Replace the battery immediately when the low battery indicator appears on the display.
• Pastikeun panutup batré ditutup pageuh sateuacan dioperasikeun.
• Patuh kana kode kaamanan lokal sareng nasional.

3. Fitur Produk

• Palm-size design for easy portability.
• Ukuran DC/AC Voltage, DC Current, Resistance.
• Diode and Continuity test functions.
• Temperature measurement in Celsius and Fahrenheit.
• Fungsi Nyimpen Data pikeun maca anu merenah.
• Backlight for clear display in low-light conditions.
• indikasi batré low.

4. Produk Langkungview jeung Komponén

The UNI-T UT33C multimeter features a clear digital display, a central rotary switch for function selection, and input jacks for test leads. Below is an illustration and description of its main components.

Gambar 1: Hareupeun view of the UNI-T UT33C Digital Multimeter. This image displays the red casing, LCD screen showing '00.0', 'HOLD' button, backlight button, central rotary switch with various measurement functions (voltage, current, resistance, temperature, diode, continuity), and three input jacks at the bottom for test leads.

Komponén konci:

1. Layar LCD: Némbongkeun bacaan pangukuran, unit, sareng indikator fungsi.
2. Tombol TAHAN: Freezes bacaan ayeuna dina tampilan.
3. Backlight Button (Snowflake/Light Symbol): Activates or deactivates the display backlight.
4. Saklar Rotary: Dipaké pikeun milih pungsi pangukuran anu dipikahoyong sareng rentang.
5. 10A Input Jack: For DC current measurements up to 10A.
6. VΩmACF Input Jack: Pikeun voltage, resistance, milliampere current, capacitance, and frequency measurements. This is the positive (+) input.
7. COM Input Jack: Common (negative -) input for all measurements.

5. Setélan

5.1 Pamasangan batré

1. Pastikeun multimeter dina kaayaan OFF.
2. Tangtukeun lokasi kompartemen batré dina tonggong unit.
3. Paké obeng pikeun nyoplokkeun screw securing panutup batré.
4. Taliti nyabut panutup.
5. Pasangkeun batré 9V anyar, bari tetep niténan polaritasna (+ sareng -) anu bener.
6. Ganti panutup batré jeung amankeun ku screw nu.

5.2 Sambungan Kabel Uji

1. Kanggo sabagéan ageung pangukuran (voltage, resistance, diode, continuity, temperature, and current up to 200mA), connect the black test lead to the COM jack sareng kabel tés beureum ka VΩmACF jack.
2. For DC current measurements between 200mA and 10A, connect the black test lead to the COM jack sareng kabel tés beureum ka 10A jack.

6. Parentah Operasi

Always select the appropriate function and range using the rotary switch before connecting the test leads to the circuit under test.

6.1 Ngukur DC Voltage (V=)

1. Connect the test leads as described in Section 5.2 (COM and VΩmACF).
2. Setel saklar puteran kana Voltase DC anu dipikahoyongtage (V=) range (e.g., 200m, 2000m, 20, 200, 500). If the voltage is unknown, start with the highest range (500V) and decrease as necessary.
3. Sambungkeun kabel tés kana komponén atanapi sirkuit anu badé diukur, bari tetep niténan polaritasna.
4. Baca voltage nilai dina tampilan LCD.

6.2 Ngukur AC Voltage (V~)

1. Connect the test leads as described in Section 5.2 (COM and VΩmACF).
2. Setel saklar puteran kana Voltase AC anu dipikahoyongtage (V~) range (e.g., 200, 500). If the voltage is unknown, start with the highest range (500V) and decrease as necessary.
3. Connect the test leads across the component or circuit to be measured. Polarity is not critical for AC voltage.
4. Baca voltage nilai dina tampilan LCD.

6.3 Measuring DC Current (A=)

1. For 200mA or less: Connect the black test lead to COM and the red test lead to VΩmACF.
2. Pikeun 10A: Connect the black test lead to COM and the red test lead to 10A.
3. Set the rotary switch to the desired DC Current (A=) range (e.g., 20m, 200m, 10A). Start with the highest range if the current is unknown.
4. Open the circuit where current is to be measured and connect the multimeter in series with the load.
5. Baca nilai ayeuna dina tampilan LCD.

6.4 Ngukur Résistansi (Ω)

1. Pastikeun sirkuit teu boga énergi sareng sadaya kapasitor teu boga muatan.
2. Connect the test leads as described in Section 5.2 (COM and VΩmACF).
3. Set the rotary switch to the desired Resistance (Ω) range (e.g., 200, 2000, 20k, 200k, 20M). Start with a higher range if the resistance is unknown.
4. Sambungkeun lead test kana komponén anu bakal diukur.
5. Baca nilai lalawanan dina tampilan LCD.

6.5 Tés Dioda

1. Pastikeun sirkuit de-energized.
2. Connect the test leads as described in Section 5.2 (COM and VΩmACF).
3. Setel saklar puteran kana simbol Dioda.
4. Sambungkeun lead test beureum ka anoda jeung lead test hideung ka katoda dioda. A maju voltage drop (typically 0.5V to 0.8V for silicon diodes) will be displayed.
5. Reverse the test leads. The display should show 'OL' (Open Loop) for a good diode.

6.6 Tés Continuity

1. Pastikeun sirkuit de-energized.
2. Connect the test leads as described in Section 5.2 (COM and VΩmACF).
3. Set the rotary switch to the Continuity (buzzer) symbol.
4. Connect the test leads across the component or circuit path.
5. If the resistance is below approximately 50Ω, the buzzer will sound, indicating continuity. The display will also show the resistance value.

6.7 Pangukuran Suhu (°C/°F)

1. Connect the temperature probe (K-type thermocouple, not included with all models) to the VΩmACF (positive) and COM (negative) jacks, observing polarity.
2. Set the rotary switch to the °C or °F position.
3. Tempatkeun tungtung probe suhu kana atanapi caket objék anu suhuna badé diukur.
4. Baca nilai suhu dina layar LCD.

6.8 Data Tahan Fungsi

Pencét éta TAHAN button to freeze the current reading on the display. Press it again to release the hold function and resume live measurements.

6.9 Fungsi lampu tukang

Pencét éta Snowflake/Light button to turn on the display backlight. Press it again to turn off the backlight. This feature is useful in dimly lit environments.

7. Pangropéa

7.1 Ngagantian batré

When the low battery indicator appears on the display, replace the 9V battery as soon as possible to ensure accurate measurements. Follow the steps outlined in Section 5.1.

7.2 Ngagantian sekering

The 10A input jack is protected by a fuse. If the multimeter fails to measure current in the 10A range, the fuse may need replacement. Refer to the specifications for the correct fuse type. Fuse replacement should only be performed by qualified personnel.

1. Pastikeun multimeter dipareuman sareng kabel tés dicabut.
2. Cabut panutup batre sareng batre.
3. Unscrew the case screws and carefully open the multimeter casing.
4. Locate the fuse(s) and replace the blown fuse with one of the identical type and rating.
5. Carefully reassemble the casing, ensuring all screws are tightened.

7.3 beberesih

Ngusap kasus kalayan iklanamp cloth and mild detergent. Do not use abrasives or solvents. Ensure the multimeter is completely dry before use.

8. Cara ngungkulan

9. Spésifikasi

10. Garansi jeung Rojongan

The UNI-T UT33C Digital Handheld Multimeter is designed for reliability and performance. For specific warranty details, please refer to the warranty card included with your product or contact your local UNI-T distributor or retailer.

For technical support, troubleshooting assistance, or service inquiries, please contact the authorized UNI-T service center or your point of purchase. Keep your purchase receipt as proof of purchase for warranty claims.