ຄູ່ມືຜູ້ໃຊ້ຊຸດເຄື່ອງວັດດິຈິຕອລ UNI-T

1. ບົດແນະນຳ

This manual provides essential information for the safe and effective operation of your UNI-T Digital Multimeter. Please read this manual thoroughly before use and keep it for future reference. UNI-T multimeters are versatile tools designed for electrical measurements in various applications, from basic home use to professional industrial settings.

Various UNI-T Digital Multimeter models — Figure 1: A selection of UNI-T Digital Multimeter models.

ສິນຄ້າເກີນview ວິດີໂອ

ວິດີໂອທີ 1: ຈົບແລ້ວview of UNI-T's commitment to quality and various applications of their measurement tools.

2. ຂໍ້ມູນຄວາມປອດໄພ

ສັງເກດເບິ່ງຄວາມລະມັດລະວັງດ້ານຄວາມປອດໄພທຸກຄັ້ງເມື່ອໃຊ້ອຸປະກອນທົດສອບໄຟຟ້າ. ຄວາມລົ້ມເຫຼວທີ່ຈະເຮັດແນວນັ້ນອາດຈະເຮັດໃຫ້ເກີດການບາດເຈັບຫຼືຄວາມເສຍຫາຍຕໍ່ເຄື່ອງວັດແທກຫຼືອຸປະກອນທີ່ຢູ່ໃນການທົດສອບ.

ໃຫ້ແນ່ໃຈວ່າເຄື່ອງວັດແທກຢູ່ໃນສະພາບດີກ່ອນທີ່ຈະນໍາໃຊ້.
ຢ່າໃຊ້ voltage or current that exceeds the maximum rated input for the meter.
ໃຊ້ອຸປະກອນປ້ອງກັນສ່ວນບຸກຄົນທີ່ເຫມາະສົມ (PPE), ເຊັ່ນ: ຖົງມື insulated ແລະແວ່ນຕາຄວາມປອດໄພ.
Never use the meter on circuits with voltages exceeding its CAT rating.
Replace batteries and fuses only with the specified type and rating.
ຫຼີກລ້ຽງການນໍາໃຊ້ເຄື່ອງວັດໃນສະພາບແວດລ້ອມທີ່ຊຸ່ມຫຼືໃນເວລາພະຍຸໄຟຟ້າ.

3. ຄຸນສົມບັດ ແລະ ອົງປະກອບຂອງຜະລິດຕະພັນ

UNI-T Digital Multimeters offer a range of features depending on the model. Common features include:

AC/DC Voltage ແລະການວັດແທກປະຈຸບັນ
Resistance, Capacitance, and Frequency Measurement
ການທົດສອບ Diode ແລະຄວາມຕໍ່ເນື່ອງ
Vol-Non-Contacttage (NCV) ການກວດຫາ
Temperature Measurement (with appropriate probe)
RMS ທີ່ແທ້ຈິງສໍາລັບການວັດແທກ AC ທີ່ຖືກຕ້ອງ
Automatic Range and Automatic Shutdown
Data Hold and Max/Min functions
ໄຟພື້ນຫຼັງສຳລັບສະພາບແສງໜ້ອຍ

UT123 Digital Multimeter with specifications — Figure 2: UT123 Digital Multimeter showing its display and basic functions.

4. ຕັ້ງຄ່າ

4.1 ການຕິດຕັ້ງຫມໍ້ໄຟ

Most UNI-T multimeters require AA or AAA batteries. Refer to your specific model's battery compartment for details.

ປິດມັນຕິມີເຕີ ແລະ ຖອດສາຍທົດສອບທັງໝົດອອກ.
ຊອກຫາຝາປິດຊ່ອງໃສ່ຫມໍ້ໄຟຢູ່ດ້ານຫຼັງຂອງເຄື່ອງວັດແທກ.
ໃຊ້ screwdriver ເພື່ອເປີດຝາປິດ.
ໃສ່ແບັດເຕີຣີ່ໃໝ່, ໂດຍສັງເກດຂົ້ວທີ່ຖືກຕ້ອງ (+ ແລະ -).
ປ່ຽນຝາປິດແລະຍຶດມັນດ້ວຍສະກູ.

4.2 ການເຊື່ອມຕໍ່ຜູ້ນໍາການທົດສອບ

Always connect the black test lead to the 'COM' (common) jack. Connect the red test lead to the appropriate input jack for your measurement (e.g., 'VΩmA' for voltage/resistance/small current, 'A' for high current).

5. ຄໍາແນະນໍາການດໍາເນີນງານ

The following are general operating guidelines. Always refer to the specific instructions for your multimeter model.

5.1 ການວັດແທກພື້ນຖານ

ສະບັບtage ການວັດແທກ (AC/DC):
1. Turn the rotary switch to the V~ (AC Voltage) ຫຼື V- (DC Voltage) ຕໍາແໜ່ງ.
2. Connect the black test lead to the COM jack and the red test lead to the VΩmA jack.
3. Connect the test probes in parallel to the circuit or component being measured.
4. ອ່ານ voltage ມູນຄ່າໃນການສະແດງຜົນ.
ການວັດແທກກະແສໄຟຟ້າ (AC/DC):
1. Turn the rotary switch to the A~ (AC Current) or A- (DC Current) position. Select the appropriate range (mA or A).
2. Connect the black test lead to the COM jack. Connect the red test lead to the mA or A jack, depending on the expected current.
3. Connect the test probes in series with the circuit.
4. ອ່ານຄ່າປັດຈຸບັນຢູ່ໜ້າຈໍ.
ການວັດແທກຄວາມຕ້ານທານ:
1. Turn the rotary switch to the Ω position.
2. Connect the black test lead to the COM jack and the red test lead to the VΩmA jack.
3. ເຊື່ອມຕໍ່ໂພຣບທົດສອບຜ່ານອົງປະກອບທີ່ຈະວັດແທກ. ຮັບປະກັນວ່າວົງຈອນຖືກຕັດພະລັງງານ.
4. ອ່ານຄ່າການຕໍ່ຕ້ານໃນຈໍສະແດງຜົນ.
ການທົດສອບຄວາມຕໍ່ເນື່ອງ:
1. ຫັນສະວິດaryຸນໄປທີ່ Ω or ))) ຕໍາແຫນ່ງ.
2. Connect the test leads as for resistance measurement.
3. Touch the probes to the two points of the circuit. A continuous beep indicates continuity.
ການທົດສອບ Diode:
1. ຫັນສະວິດaryຸນໄປທີ່ Ω or ))) position, then press 'SELECT' to choose diode test.
2. Connect the test leads as for resistance measurement.
3. Connect the red probe to the anode and the black probe to the cathode of the diode. Read the forward voltagປ່ອຍ e. ປີ້ນໂພຣບເພື່ອກວດສອບວົງຈອນເປີດ.

UT890C/D+ Multimeter measurement examples — ຮູບທີ 3: ຕົວຢ່າງamples of measurements with UT890C/D+ Multimeter, showing analog mains output, standard capacitance, and standard AC low current readings.

5.2 ຄຸນສົມບັດຂັ້ນສູງ

Vol-Non-Contacttage (NCV): Many models feature NCV detection. Place the NCV sensor near a live conductor to detect AC voltage without contact. The meter will indicate with an audible beep and/or LED light.
ການວັດແທກອຸນຫະພູມ: For models like UT890C and UT89X, connect a K-type thermocouple to the meter and select the temperature function. The UT890C can measure from -40°C to 1000°C.

UT890C Temperature measurement function — Figure 4: UT890C Multimeter performing temperature measurement with a probe.

UT89X Temperature measurement function — Figure 5: UT89X Multimeter performing temperature measurement, showing the ability to switch between °C and °F.

LED Test Function (UT89XD only): The UT89XD model can output approximately 12V/5mA voltage for testing LEDs.

UT89XD LED test function — Figure 6: UT89XD Multimeter demonstrating its LED test function.

ສູງtage Measurement (UT892): The UT892 model supports AC/DC voltage measurement up to 2000V. It features a high voltage red backlight alarm for measured values over 1500V.

UT892 High voltage 2000V AC/DC measurement — Figure 7: UT892 Multimeter measuring high voltage, with a warning about the 2000V range.

6. ບໍາລຸງຮັກສາ

6.1 ການທໍາຄວາມສະອາດ

ເຊັດແມັດຄasing ກັບການໂຄສະນາamp ຜ້າແລະເຄື່ອງຊັກຜ້າອ່ອນ mild. ຢ່າໃຊ້ສານຂັດຫຼືສານລະລາຍ.

6.2 ການທົດແທນຫມໍ້ໄຟ

When the battery indicator appears on the display, replace the batteries as described in the Setup section (4.1 Battery Installation).

6.3 ການທົດແທນຟິວ

If the meter fails to measure current, the fuse may be blown. Refer to the specific model's manual for fuse specifications and replacement instructions. Always use a fuse with the correct voltage ແລະການຈັດອັນດັບໃນປະຈຸບັນ.

Intelligent anti-burning protection with fuse image — Figure 8: Illustration of intelligent anti-burning protection, highlighting the double fuse protection in some multimeters (e.g., 630mA/10A fuse).

7. ການແກ້ໄຂບັນຫາ

ບໍ່ມີຈໍສະແດງຜົນ ຫຼື ມືດມົວລົງ: ກວດເບິ່ງລະດັບຫມໍ້ໄຟແລະປ່ຽນແທນຖ້າຈໍາເປັນ.
ການອ່ານບໍ່ຖືກຕ້ອງ: Ensure correct function selection, proper test lead connection, and that the circuit is within the meter's measurement range.
ບໍ່ມີການວັດແທກກະແສໄຟຟ້າ: ກວດສອບ ແລະ ປ່ຽນຟິວຖ້າຟິວຂາດ.
'OL' or 'OVER' on display: ຊີ້ບອກເຖິງການໂຫຼດເກີນ ຫຼື ການວັດແທກນອກຂອບເຂດ. ເລືອກຂອບເຂດທີ່ສູງກວ່າ ຫຼື ກວດສອບວົງຈອນ.

8. ຂໍ້ມູນຈໍາເພາະ

Specifications vary by model. Below are tables for common models. Always refer to your specific model's documentation for precise details.

8.1 UT890C / UT890D+ Specifications

Detailed parameter display for UT890C and UT890D+ — Figure 9: Detailed specifications for UT890C and UT890D+ models.

8.2 UT105+ / UT107+ Technical Indicators

Technical indicators for UT105+ and UT107+ — Figure 10: Technical specifications for UT105+ and UT107+ models.

8.3 UT89X / UT89XD / UT89XE Data Parameters

Data parameters for UT89X, UT89XD, UT89XE — Figure 11: Data parameters for UT89X, UT89XD, and UT89XE models.

8.4 UT123 / UT123D Technical Parameters

Technical Parameters for UT123 and UT123D — Figure 12: Technical parameters for UT123 and UT123D models.

9. ຄໍາແນະນໍາຜູ້ໃຊ້

ເລີ່ມຕົ້ນດ້ວຍລະດັບສູງສຸດສະເໝີເມື່ອວັດແທກຄວາມດັນທີ່ບໍ່ຮູ້ຈັກtage ຫຼື ກະແສໄຟຟ້າເພື່ອປ້ອງກັນຄວາມເສຍຫາຍຕໍ່ມິເຕີ.
For accurate resistance readings, ensure the component is isolated from the circuit.
Utilize the 'HOLD' function to freeze a measurement on the display for easier reading in difficult positions.
The 'MAX/MIN' function is useful for capturing transient peaks or troughs in measurements over time.
Keep your multimeter clean and store it in a protective case to prolong its lifespan.

10. ການຮັບປະກັນແລະການສະຫນັບສະຫນູນ

UNI-T products are designed for reliability and performance. For warranty information, technical support, or service, please contact your local UNI-T distributor or visit the official UNI-T webເວັບໄຊ. ຮັກສາໃບຮັບເງິນການຊື້ຂອງທ່ານໄວ້ເປັນຫຼັກຖານການຊື້.

UNI-T Digital Multimeter Series