HoldPeak HP-39L Digital LCR Multimeter User Manual

1. ຜະລິດຕະພັນເກີນview

The HoldPeak HP-39L is an accurate digital LCR meter designed for measuring resistance, capacitance, inductance, and testing transistors. It features a 1999 counts digit LCD monitor for clear readings and an automatic backlight for visibility in various lighting conditions.

Figure 1: HoldPeak HP-39L Digital LCR Multimeter in a typical application.

ຄຸນ​ນະ​ສົມ​ບັດ​ທີ່​ສໍາ​ຄັນ​:

• Accurate digital LCR meter with 1999 counts digit LCD monitor.
• Measures resistance, capacitance, and inductance.
• Transistor hFE test function.
• Built-in CDS sensor for automatic LCD backlight control.
• Auto Power Off after 20 minutes of inactivity.
• Data Hold function to lock display values.
• Auto-zero & Auto-polarity functions.
• Over-range indication & Low battery indication.
• Anti-slip cover with test probe slots for protection and organization.
• Includes a wrist strap for convenient carrying and operation.

2. ອົງປະກອບຂອງຜະລິດຕະພັນ

Figure 2: Labeled diagram of the HP-39L Multimeter.

ການລະບຸອົງປະກອບ:

• Test lead fixture: Holds test leads when not in use.
• CDS Sensor: Detects ambient light for automatic backlight control.
• ຈໍ LCD: 1999 counts digit display for readings.
• ສະຫວິດໄຟຟ້າ: ເປີດ/ປິດອຸປະກອນ.
• Transistor hFE test Input Jack: For testing transistors (PNP, NPN).
• ຖືກະແຈ: ຢຸດການອ່ານປັດຈຸບັນຢູ່ໃນຈໍສະແດງຜົນ.
• ສະວິດ Rotary: Selects measurement functions and ranges.
• Ω Input Jack: For resistance measurements.
• COM/LC+ Input Jack: Common terminal for all measurements, and positive terminal for LCR measurements.
• LC- Input Jack: Negative terminal for LCR measurements.
• ປ້ອງກັນ ຄasing: Provides durability and anti-slip grip.

3. ຕັ້ງຄ່າ

3.1 ການຕິດຕັ້ງຫມໍ້ໄຟ

1. ກວດໃຫ້ແນ່ໃຈວ່າມັລຕິມິເຕີຖືກປິດໄວ້.
2. ຊອກຫາຊ່ອງໃສ່ຫມໍ້ໄຟຢູ່ດ້ານຫຼັງຂອງອຸປະກອນ.
3. ຫັນນັອດcoverາປິດbatteryໍ້ໄຟອອກ.
4. Insert one 9V (6F22) zinc-carbon battery, observing correct polarity.
5. ປ່ຽນຝາປິດຫມໍ້ໄຟແລະຍຶດມັນດ້ວຍສະກູ.

ໝາຍເຫດ: Batteries are not included in the standard package due to international shipping regulations. Please purchase them from your local store.

3.2 ການເຊື່ອມຕໍ່ຜູ້ນໍາການທົດສອບ

1. Insert the black test lead into the 'COM/LC+' input jack.
2. ໃສ່ຫົວການທົດສອບສີແດງເຂົ້າໄປໃນຊ່ອງສຽບທີ່ເຫມາະສົມສໍາລັບການວັດແທກຂອງທ່ານ:
• For Resistance (Ω) measurements, use the 'Ω' input jack.
• For Capacitance (C) and Inductance (L) measurements, use the 'LC-' input jack.

3.3 ຕິດສາຍແຂນ

The multimeter comes with a wrist strap for added convenience and security. It can be attached to the back of the device, allowing you to wear it on your wrist during use.

4. ຄໍາແນະນໍາການດໍາເນີນງານ

4.1 ເປີດ/ປິດ ແລະ ໄຟພື້ນຫຼັງ

• ກົດແດງ ພະລັງງານ button to turn the multimeter on.
• The LCD backlight will automatically activate in dark environments, thanks to the built-in CDS sensor.
• ອຸປະກອນຈະປິດອັດຕະໂນມັດພາຍຫຼັງ 20 ນາທີທີ່ບໍ່ມີການເຄື່ອນໄຫວເພື່ອປະຢັດອາຍຸແບັດເຕີຣີ.

Figure 3: The 1999 counts LCD display with automatic backlight.

4.2 Selecting Measurement Functions

Use the central rotary switch to select the desired measurement function and range:

• ຄວາມຕ້ານທານ (Ω): Select the appropriate Ω range (e.g., 20Ω, 200Ω, 2kΩ, etc.).
• Capacitance (C): Select the appropriate C range (e.g., 2000pF, 20nF, 200nF, etc.).
• Inductance (L): Select the appropriate L range (e.g., 20mH, 200mH, 2H, 20H).
• Transistor hFE: Use the dedicated hFE test input jack.

4.3 Performing Measurements

1. Connect the test leads to the appropriate input jacks as described in Section 3.2.
2. Turn the rotary switch to the desired measurement function and range.
3. Touch the test probes to the component you wish to measure.
4. Read the value displayed on the LCD screen.
5. For Transistor hFE tests, insert the transistor leads into the corresponding slots in the hFE test input jack.

4.4 ຟັງຊັນການຖືຂໍ້ມູນ

ກົດສີຟ້າ ຖື button to freeze the current reading on the display. Press it again to release the hold function and resume live measurements.

5. ບໍາລຸງຮັກສາ

5.1 ການທໍາຄວາມສະອາດ

ເຊັດເຄື່ອງວັດມິລຕິມີເຕີດ້ວຍຜ້າແຫ້ງ ແລະ ນຸ່ມ. ຢ່າໃຊ້ນໍ້າຢາທຳຄວາມສະອາດທີ່ມີສີຂັດ ຫຼື ຕົວລະລາຍ.

5.2 ການທົດແທນຫມໍ້ໄຟ

When the low battery indicator appears on the display, replace the 9V battery as described in Section 3.1. Always use a fresh zinc-carbon battery.

5.3 ການເກັບຮັກສາ

ເມື່ອບໍ່ໄດ້ໃຊ້ເປັນເວລາດົນ, ໃຫ້ຖອດແບັດເຕີຣີອອກເພື່ອປ້ອງກັນການຮົ່ວໄຫຼ. ເກັບຮັກສາມັນຕິມີເຕີໄວ້ໃນບ່ອນທີ່ເຢັນ, ແຫ້ງ, ຫ່າງຈາກແສງແດດໂດຍກົງ ແລະ ອຸນຫະພູມທີ່ຮຸນແຮງ.

6. ການແກ້ໄຂບັນຫາ

• ບໍ່ມີຈໍສະແດງຜົນ ຫຼື ມືດມົວລົງ: Check battery level and replace if necessary. Ensure the power button is pressed.
• ການອ່ານບໍ່ຖືກຕ້ອງ: Verify that the test leads are correctly connected and that the rotary switch is set to the appropriate function and range. Ensure the component is properly connected to the probes.
• 'OL' or '1' displayed: This indicates an over-range condition. Select a higher range on the rotary switch or check for an open circuit.
• ບໍ່ມີສຽງບີບຕໍ່ເນື່ອງ: Ensure the continuity function is selected and that the resistance is below 50Ω.

7. ຂໍ້ມູນຈໍາເພາະ

Figure 4: Detailed specifications for Resistance and Transistor hFE.

Figure 5: Physical dimensions of the HP-39L Multimeter.

8. ການຮັບປະກັນແລະການສະຫນັບສະຫນູນ

This product typically comes with a 1-year warranty from the store. For any issues or support, please contact the seller directly. They aim to answer all inquiries within 24 hours.

9. ຄໍາແນະນໍາຜູ້ໃຊ້

• Always ensure the test leads are securely connected to prevent inaccurate readings or damage.
• When measuring unknown values, start with the highest range and gradually decrease it until a stable reading is obtained.
• ເອົາ advantage of the automatic backlight feature in dimly lit workspaces for better visibility.
• The wrist strap is useful for keeping the multimeter handy and preventing accidental drops, especially when working in elevated positions.