ແນະນຳ
This manual provides essential information for the safe and effective operation of your Cen-Tech 7 Function Digital Multimeter. Please read this manual thoroughly before use and retain it for future reference.
ຄຸນນະສົມບັດທີ່ສໍາຄັນ
- Automatic zero adjust
- ຕົວຊີ້ວັດໄລຍະຫ່າງ
- 2.5x second sampເວລາ
- ຕົວຊີ້ວັດແບັດເຕີຣີຕໍ່າ
- Fuse and diode protected circuit
- Easy-to-read 3-1/2" digital LCD
- Includes two 24" 18 gauge CCA test leads
- High impact housing with soft overmold for a comfortable grip
ສິນຄ້າເກີນview
The Cen-Tech 7 Function Digital Multimeter is a versatile tool designed for checking home electrical systems and various other electrical measurements. It features a clear digital display and a rotary switch for selecting functions.
ຮູບ 1: ດ້ານຫນ້າ view of the Cen-Tech 7 Function Digital Multimeter in its retail packaging, showing the red multimeter with black and red test leads.
ຮູບ 2: ກັບຄືນໄປບ່ອນ view of the Cen-Tech 7 Function Digital Multimeter packaging, highlighting key features, specifications, and a Proposition 65 warning.
ການຕິດຕັ້ງແລະການຕິດຕັ້ງຫມໍ້ໄຟ
The multimeter requires one 9V battery for operation. Ensure the battery is correctly installed before first use.
- ຊອກຫາຊ່ອງໃສ່ຫມໍ້ໄຟຢູ່ດ້ານຫຼັງຂອງ multimeter.
- ເປີດຝາປິດຊ່ອງໃສ່ຫມໍ້ໄຟ.
- ໃສ່ແບັດເຕີຣີ 9V ໃໝ່, ໂດຍສັງເກດເບິ່ງຂົ້ວທີ່ຖືກຕ້ອງ (+/-).
- ປິດຝາປິດຊ່ອງໃສ່ຫມໍ້ໄຟຢ່າງປອດໄພ.
Connect the included test leads to the appropriate jacks on the multimeter. The red lead typically connects to the positive (+) or VΩmA jack, and the black lead connects to the common (COM) jack.
ຄໍາແນະນໍາການດໍາເນີນງານ
To operate the multimeter, turn the rotary switch to the desired function and range. The digital display will show the measurement. Always select a range higher than the expected measurement to avoid damaging the device.
ຟັງຊັນການວັດແທກ:
- ຊິງຕັນດີຊີ Voltage (DCV): Used for measuring direct current voltage. Select the appropriate DCV range (e.g., 200mV, 2V, 20V, 200V, 250V).
- AC Voltage (ACV): Used for measuring alternating current voltage. Select the appropriate ACV range (e.g., 200V, 250V).
- DC Current (DCA): Used for measuring direct current. Select the appropriate DCA range (e.g., 200µA, 2mA, 20mA, 200mA, 5A).
- ຄວາມຕ້ານທານ (Ω): Used for measuring electrical resistance in ohms. Select the appropriate Ohm range (e.g., 200Ω, 2KΩ, 20KΩ, 200KΩ, 2000KΩ).
- ການທົດສອບ Diode: Used to check the functionality of diodes.
- Transistor (hFE) ການທົດສອບ: Used to measure the DC current gain of transistors.
For detailed instructions on specific measurement procedures, refer to specialized electrical guides or instructional videos. Always ensure proper safety precautions are followed when working with electricity.
ບໍາລຸງຮັກສາ
To ensure the longevity and accuracy of your multimeter, follow these maintenance guidelines:
- ຮັກສາເຄື່ອງວັດມິລຕິໃຫ້ສະອາດ ແລະ ແຫ້ງ. ເຊັດດ້ວຍຜ້າອ່ອນໆ, ເຊັດອອກດ້ວຍຜ້າເຊັດໂຕ.amp ຜ້າ; ຢ່າໃຊ້ນໍ້າຢາທໍາຄວາມສະອາດທີ່ມີສີຂັດ ຫຼື ຕົວລະລາຍ.
- Replace the 9V battery when the low battery indicator appears on the display to ensure accurate readings.
- The circuit is fuse and diode protected. If the multimeter stops functioning correctly, check the internal fuse (refer to a qualified technician for fuse replacement if necessary).
- ເກັບຮັກສາມັນຕິມີເຕີໄວ້ໃນບ່ອນທີ່ເຢັນ, ແຫ້ງ, ຫ່າງຈາກແສງແດດໂດຍກົງ ແລະ ອຸນຫະພູມສູງສຸດ.
ການແກ້ໄຂບັນຫາ
If you encounter issues with your multimeter, consider the following common solutions:
- ບໍ່ມີຈໍສະແດງຜົນ ຫຼື ມືດມົວລົງ: ກວດສອບ ແລະ ປ່ຽນແບັດເຕີຣີ 9V.
- "OL" or Overrange Indicator: The measured value exceeds the selected range. Switch to a higher range setting.
- ການອ່ານບໍ່ຖືກຕ້ອງ: Ensure test leads are properly connected, the correct function and range are selected, and the battery is not low.
- No continuity/resistance reading: Check if the test leads are damaged or if the internal fuse has blown.
For persistent issues or complex repairs, it is recommended to consult a qualified electrician or technician.
ຂໍ້ມູນຈໍາເພາະ
| ຄຸນລັກສະນະ | ລາຍລະອຽດ |
|---|---|
| ຍີ່ຫໍ້ | Cen-Tech |
| ໝາຍເລກຕົວແບບ | 69096 |
| ຂະໜາດສິນຄ້າ | 5 x 2.75 x 1 ນິ້ວ; 5.6 ອອນ |
| ນ້ໍາຫນັກລາຍການ | 0.35 ປອນ |
| ແຫຼ່ງພະລັງງານ | Battery Powered (1 x 9V battery required, included) |
| ແບບ | ດິຈິຕອລ |
| ສີ | ສີແດງ |
| AC Voltage Max | 250V |
| ຊິງຕັນດີຊີ Voltage Max | 250V (200mV minimum) |
| DC Current Max | 5A (200µA minimum) |
| ຊ່ວງຄວາມຖີ່ | 45Hz ຫາ 450Hz |
| ຊ່ວງຄວາມຕ້ານທານ | 200 ohms – 2000K ohms |
| Sample ເວລາ | 2.5x ຕໍ່ວິນາທີ |
| ທົດສອບຜູ້ນໍາ | Two 24" 18 gauge CCA test leads included |
ຂໍ້ມູນຄວາມປອດໄພ
ຄຳເຕືອນ:
This product can expose you to chemicals including DINP, which is known to the State of California to cause cancer. For more information go to www.P65 ຂໍ້ຄວນລະວັງ.
Always exercise caution when working with electrical circuits. Do not attempt to measure voltages or currents beyond the specified maximums of this device. Ensure the multimeter is in good working condition before each use.
ສະຫນັບສະຫນູນແລະການຮັບປະກັນ
For support or warranty information, please contact the manufacturer, Cen-Tech, or the distributor, Harbor Freight Tools. Specific warranty details are not provided in this manual.
Distributed by: Harbor Freight Tools, Camarillo, CA
Webເວັບໄຊ: www.HarborFreight.com
