Tekpower Mastech MS8268 Digital Multimeter User Manual

Uvod

This manual provides detailed instructions for the safe and effective operation of your Tekpower Mastech MS8268 Digital Multimeter. The MS8268 is an auto/manual ranging digital multimeter designed for various electrical measurements. It features a backlit LCD screen and includes sound and light warnings for incorrect test lead connections, enhancing user safety and convenience.

Figure 1: Tekpower Mastech MS8268 Digital Multimeter. This image displays the front view of the multimeter, highlighting its display, function buttons, rotary dial, and input jacks.

Ključne značilnosti:

• Mere AC/DC Voltage up to 1000V and AC/DC Current up to 10A.
• Measures Resistance up to 40MΩ, Capacitance up to 200µF, and Frequency up to 200KHz.
• Includes Diode Check, Continuity Test, and hFE (transistor) measurement.
• Brezkontaktna voltagzaznavanje e (NCV) za večjo varnost.
• Automatic and manual ranging capabilities with relative measurement (excluding frequency).
• LED and sound warnings for incorrect test lead jack usage relative to the function switch setting.
• Blue LED backlit LCD display for clear readings in various lighting conditions.
• Automatic power-off function (can be disabled) to conserve battery life.
• All ranges are fused (resettable) for circuit protection.

Varnostne informacije

To ensure safe operation and avoid damage to the meter, please read and follow all safety instructions carefully. This device complies with IEC 1010-1 (61010-1@iec:2001), CAT II 1000V, and CAT III 600V safety standards.

Splošni varnostni ukrepi:

• Always ensure the multimeter is set to the correct function and range before making any measurements.
• Nikoli ne uporabljajte voltage or current that exceeds the maximum specified limits for the selected range.
• Pri delu z napetostnimi tokokrogi bodite izjemno previdni. Visoka napetosttagje lahko nevarno.
• Merilnika ne uporabljajte, če je videti poškodovan ali če so merilni kabli ogroženi.
• Preverite delovanje merilnika pri znani prostorninitage or current source before using it for critical measurements.
• Always connect the common (COM) test lead first and disconnect it last when measuring live circuits.
• Med meritvami držite prste za ščitniki za prste na merilnih sondah.
• Replace batteries as soon as the low battery indicator appears to ensure accurate readings.
• Merilnika ne uporabljajte v okolju z eksplozivnimi plini, hlapi ali prahom.
• Predlog 65 Opozorilo: Ta izdelek lahko vsebuje kemikalije, za katere zvezna država Kalifornija ve, da povzročajo raka in prirojene okvare ali druge reproduktivne poškodbe. Po rokovanju si umijte roke.

Konec izdelkaview

Familiarize yourself with the components of your MS8268 Digital Multimeter before operation.

Figure 2: Labeled diagram of the MS8268 Multimeter. This diagram points out key features including the NCV sensing area, LCD region, function selection buttons, range selection, data hold, backlight, transistor input, rotary switch, and input jacks.

1. NCV Sensing Area: Uporablja se za brezkontaktno volumskotage zaznavanje.
2. LCD Region: Digital display for measurement readings and unit symbols.
3. SEL Measure Function Selection: Button to select sub-functions within a rotary switch position (e.g., AC/DC, Diode/Continuity).
4. RANGE Manual Range Selection Button: Toggles between auto-ranging and manual ranging.
5. HOLD Data Control: Zamrzne trenutni odčitek na zaslonu. Za sprostitev pritisnite znova.
6. B/L Backlight Function: Activates the LCD backlight. Press again to turn off.
7. Transistor Input: Socket for hFE (transistor gain) measurements.
8. Gear Swift (Rotary Switch): Izbere primarno merilno funkcijo (npr. Voltage, Current, Resistance, NCV, OFF).
9. COM priključek: Skupni (negativni) vhodni priključek za vse meritve.
10. VΩHzC Jack: Positive input terminal for Voltage, Meritve upornosti, frekvence, kapacitivnosti, diod in prevodnosti.
11. mA vtičnica: Positive input terminal for current measurements up to 600mA.
12. Jack: Positive input terminal for current measurements up to 10A.

Slika 3: Podrobno view of the multimeter's operational areas. This image provides a closer look at the LCD, function buttons, rotary dial, and the clearly labeled input jacks with their respective current limits and safety ratings.

Nastavitev

Namestitev baterije:

The MS8268 Multimeter requires three (3) AAA batteries for operation. Batteries are not included with the device.

1. Prepričajte se, da je multimeter izklopljen.
2. Poiščite predal za baterije na zadnji strani merilnika.
3. Unscrew the two Philips head screws securing the battery cover.
4. Odstranite pokrov baterije.
5. Vstavite tri baterije AAA in pri tem upoštevajte pravilno polarnost (+/-), kot je označeno v notranjosti predala.
6. Namestite pokrov baterije in ga pritrdite z vijaki.

Slika 4: Zadaj view of the multimeter, showing the integrated kickstand and the location of the battery compartment cover.

Povezava testnega kabla:

Always connect test leads to the appropriate jacks for the selected measurement function. The meter features an LED/sound warning system to alert you if leads are connected incorrectly.

• Priključite črni preskusni kabel na COM (skupni) priključek za vse meritve.
• Za Voltage, Resistance, Frequency, Capacitance, Diode, and Continuity measurements, connect the red test lead to the VΩHzC jack.
• Za meritve toka do 600 mA priključite rdečo merilno vez na mA jack.
• For current measurements up to 10A, connect the red test lead to the A jack.

Figure 5: The MS8268 Multimeter shown with its included red and black test leads, ready for connection to the input jacks.

Navodila za uporabo

This section details how to perform various measurements using your MS8268 Multimeter.

1. Measuring DC/AC Voltage (V):

1. Turn the rotary switch to the "V" position (DC Voltage) or "mV" position (millivolts).
2. Za AC Voltage, pritisnite SEL button to toggle between DC and AC modes if necessary. The display will show "AC" or "DC".
3. Priključite črni preskusni kabel na COM vtičnico in rdeči merilni kabel na VΩHzC jack.
4. Merilne sonde priključite vzporedno na vezje ali komponento, ki jo želite izmeriti.
5. Preberite zvtage vrednost na LCD -prikazovalniku.

2. Measuring DC/AC Current (A, mA, µA):

1. Turn the rotary switch to the "A", "mA", or "µA" position depending on the expected current range.
2. For AC Current, press the SEL button to toggle between DC and AC modes if necessary.
3. Priključite črni preskusni kabel na COM jack.
4. Rdeči testni kabel priključite na mA jack for currents up to 600mA, or to the A jack for currents up to 10A.
5. Pozor: Always connect the meter in series with the circuit. Never connect it in parallel to a voltagPri merjenju toka ne uporabljajte vira električne energije, saj lahko to pregori varovalko ali poškoduje merilnik.
6. Odčitajte trenutno vrednost na LCD-zaslonu.

3. Measuring Resistance (Ω):

1. Obrnite vrtljivo stikalo v položaj "Ω".
2. Priključite črni preskusni kabel na COM vtičnico in rdeči merilni kabel na VΩHzC jack.
3. Pred merjenjem upornosti se prepričajte, da je vezje ali komponenta izklopljena iz napetosti.
4. Merilne sonde priključite na komponento.
5. Odčitajte vrednost upora na LCD-prikazovalniku.

4. Measuring Capacitance (F):

1. Obrnite vrtljivo stikalo v položaj "F".
2. Priključite črni preskusni kabel na COM vtičnico in rdeči merilni kabel na VΩHzC jack.
3. Pred meritvijo se prepričajte, da je kondenzator popolnoma izpraznjen, da preprečite poškodbe merilnika.
4. Priključite preskusne sonde preko kondenzatorja.
5. Preberite vrednost kapacitivnosti na LCD-prikazovalniku.

5. Measuring Frequency (Hz):

1. Obrnite vrtljivo stikalo v položaj "Hz".
2. Priključite črni preskusni kabel na COM vtičnico in rdeči merilni kabel na VΩHzC jack.
3. Connect the test probes to the signal source.
4. Odčitajte vrednost frekvence na LCD-prikazovalniku.

6. Diode Test and Continuity Check:

1. Turn the rotary switch to the "Diode/Continuity" position (often shared with resistance).
2. Pritisnite SEL button to toggle between Diode Test and Continuity Check modes.
3. Priključite črni preskusni kabel na COM vtičnico in rdeči merilni kabel na VΩHzC jack.
4. For Diode Test: Rdečo sondo priključite na anodo, črno pa na katodo diode. Premični toktage drop will be displayed. Reverse the probes; the display should show "OL" (Open Loop) for a good diode.
5. For Continuity Check: Connect the probes across the circuit or component. If continuity exists (resistance below approximately 50Ω), the meter will emit an audible beep.

7. hFE (Transistor Gain) Measurement:

1. Turn the rotary switch to the "hFE" position.
2. Ugotovite, ali je tranzistor NPN ali PNP.
3. Insert the transistor leads (Emitter, Base, Collector) into the corresponding holes in the "Transistor Input" socket (7 on Figure 2).
4. Read the hFE value on the LCD.

8. Brezstična zvtagZaznavanje e (NCV):

1. Obrnite vrtljivo stikalo v položaj "NCV".
2. Move the top part of the meter (NCV Sensing Area, 1 on Figure 2) close to the conductor or circuit you want to test for AC voltage.
3. The meter will emit an audible beep and/or display an indication when AC voltage is detected without direct contact.

9. Auto/Manual Ranging:

The meter defaults to auto-ranging. To switch to manual ranging, press the RANGE button (4 on Figure 2). Each subsequent press will cycle through available manual ranges. To return to auto-ranging, press and hold the RANGE button or turn the rotary switch to a different function and then back.

10. Data Hold:

Pritisnite PRIDRŽI button (5 on Figure 2) to freeze the current reading on the display. Press it again to release the hold function and resume live readings.

11. Osvetlitev ozadja:

Pritisnite B / L button (6 on Figure 2) to activate the blue LED backlight for the LCD. Press it again to turn off the backlight. The backlight may automatically turn off after a short period to conserve battery life.

Vzdrževanje

Zamenjava varovalke:

The MS8268 Multimeter is protected by resettable fuses. If the meter fails to measure current, the fuse may need replacement. Always use fuses of the specified type and rating.

• FUSED MAX 10A: For the 10A current range.
• FUSED MAX 600mA: For the mA and µA current ranges.

Če želite zamenjati varovalko:

1. Prepričajte se, da je merilnik IZKLOPLJEN in da so vse merilne povezave odklopljene.
2. Unscrew the battery cover and remove the batteries.
3. Carefully open the meter casing (refer to the internal diagram if available, or consult a qualified technician).
4. Locate the blown fuse and replace it with a fuse of the identical type and rating.
5. Reassemble the meter, ensuring all screws are tightened.

Čiščenje:

Obrišite pokrov merilnikaasing z oglasomamp krpo in blagim detergentom. Ne uporabljajte abrazivnih sredstev ali topil. Pred uporabo se prepričajte, da je merilnik popolnoma suh.

Shranjevanje:

When the meter is not in use for an extended period, remove the batteries to prevent leakage. Store the meter in a cool, dry place, away from direct sunlight and extreme temperatures.

Odpravljanje težav

• Merilnik se ne vklopi: Preverite namestitev baterij in se prepričajte, da niso izpraznjene. Po potrebi jih zamenjajte.
• Inaccurate or "0000" readings:
  • Ensure test leads are fully seated in the correct input jacks. The meter's warning system should alert you if they are not.
  • Verify the rotary switch is set to the appropriate function and range.
  • For resistance measurements, ensure the circuit is de-energized.
  • If the meter displays "0000" or inconsistent readings, try turning the meter OFF and then ON again to reset it.
  • Check for blown fuses if measuring current.
• No backlight: Press the B/L button. If it still doesn't light, check battery level.
• Auto power-off too soon: The auto power-off feature can be disabled (refer to advanced settings in a full manual if available, or typically by holding a specific button during power-on). The meter will beep before shutting off.

Specifikacije

Garancija in podpora

The Tekpower Mastech MS8268 Digital Multimeter comes with a 1-letna garancija od datuma nakupa, ki krije napake v materialu in izdelavi.

For technical support, warranty claims, or service inquiries, please contact the manufacturer or your point of purchase. Please have your model number (MS8268) and purchase date available when contacting support.

• Znamka: Tekpower
• Proizvajalec: RSR Electronics Inc