Mastech MS8250A Digital Multimeter User Manual

1. Sarrera

This user manual provides detailed instructions for the safe and effective operation of the Mastech MS8250A Digital Multimeter. The MS8250A is a portable, battery-powered instrument designed for measuring AC/DC voltage, AC/DC current, resistance, capacitance, frequency, duty cycle, diode, and continuity. It also features non-contact voltage detection, data hold, and a display backlight.

Please read this manual thoroughly before using the device to ensure proper operation and to prevent potential hazards.

2. Segurtasun informazioa

Always adhere to the following safety precautions to avoid personal injury or damage to the multimeter or the equipment under test.

• Irakurri eta ulertu eskuliburu honetako argibide guztiak erabili aurretik.
• Ez gainditu funtzio bakoitzerako zehaztutako sarrera-balio maximoak.
• Never use the multimeter if its casing is damaged or if the test leads are frayed or broken.
• Ensure the function switch is in the correct position for the desired measurement before connecting the test leads.
• Oso kontuz ibili voltag30V AC RMS, 42V peak edo 60V DC-tik gorakoak. Bolumen hauektagshock arriskua dakar.
• The Mastech MS8250A is rated for CAT IV 600V. This rating indicates its suitability for measurements at the source of the low-voltagInstalazioa, hala nola elektrizitate-kontagailuak eta gainkorrontearen babeserako gailu nagusiak.
• Funtzio-etengailuaren posizioa aldatu aurretik, deskonektatu beti proba-kableak zirkuitutik.
• Irakurketa zehatzak bermatzeko, aldatu bateriak berehala bateria baxuaren adierazlea agertzen denean.

3. Produktua amaitu daview

3.1 Ezaugarri nagusiak

• Pantaila: 4000 zenbaki
• Auto Ranging and Manual Ranging capabilities
• Auto Power Off function to conserve battery life
• Neurketa erlatiboa modua
• Kontaktu gabeko boltage (NCV) detektagailua
• Diode Open voltage: 1.5V
• Continuity Buzzer: Sounds when resistance is less than 50Ω ± 20Ω
• Datuak gordetzeko funtzioa
• Low Battery Display indicator
• Display Backlight for visibility in low-light conditions

3.2 Multimeter Components

The Mastech MS8250A Digital Multimeter features a clear LCD display, a central rotary function switch, and multiple input jacks for test leads.

Osagai nagusien artean hauek daude:

• LCD pantaila: Neurketa-irakurketak, unitateak eta hainbat adierazle erakusten ditu.
• Funtzio-botoiak: Include FUNC (function select), RANGE (manual range), REL (relative measurement), HOLD (data hold), and backlight button.
• Etengailu birakaria: Used to select the desired measurement function (e.g., V∼, V−, Ω, A∼, A−, Diode, Continuity, NCV).
• Sarrerako Jackak:
• VΩHz%→←CAP: Bolumenerako sarreratage, resistance, frequency, capacitance, and diode/continuity measurements.
• mAµA: Milirako sarreraampere eta mikroampegungo neurketak.
• A: Sarrera ampere current measurements (up to 10A).
• COM: Neurketa guztietarako sarrera komuna (lurra).
• NCV sentsorea: Located at the top of the multimeter for non-contact voltage detekzioa.

4. Konfigurazioa

4.1 Bateriaren instalazioa

The Mastech MS8250A requires two LR44 batteries for operation. These are typically included with the device.

1. Ziurtatu multimetroa itzalita dagoela.
2. Bilatu bateriaren konpartimentuaren estalkia multimetroaren atzealdean.
3. Erabili bihurkin bat bateriaren estalkia lotzen duten torlojua(k) askatzeko.
4. Kendu arretaz bateriaren estalkia.
5. Insert two new LR44 batteries, observing the correct polarity (+ and -) as indicated inside the compartment.
6. Jarri berriro bateriaren estalkia eta estutu torlojua(k) ondo.

Note: Always dispose of used batteries responsibly according to local regulations.

5. Funtzionamendu-argibideak

5.1 Funtzionamendu Orokorra

• Piztu/Itzali: Rotate the function switch from the 'OFF' position to any desired measurement function to turn the multimeter ON. Rotate it back to 'OFF' to power OFF.
• Itzali automatikoa: The multimeter will automatically power off after approximately 15 minutes of inactivity to save battery. Press any button or rotate the function switch to resume operation.
• Automatikoki neurtutako eremua: By default, the multimeter operates in auto-ranging mode, automatically selecting the appropriate measurement range.
• Manual Ranging: Press the 'RANGE' button to switch to manual ranging. Each press will cycle through available ranges. Press and hold 'RANGE' to return to auto-ranging.
• Datuak gordetzea: Sakatu 'HOLD' botoia pantailan uneko irakurketa izozteko. Sakatu berriro askatzeko.
• Atzeko argia: Press the backlight button (often indicated by a light bulb icon) to turn the display backlight ON or OFF.

5.2 Neurketa funtzioak

Before any measurement, ensure the test leads are correctly inserted into the appropriate input jacks.

5.2.1 DC Voltage Measurement (V−)

1. Insert the red test lead into the 'VΩHz%→←CAP' jack and the black test lead into the 'COM' jack.
2. Rotate the function switch to the 'V−' position.
3. Konektatu proba-kableak paraleloan DC bolumenarekin.tage source or component to be measured.
4. Irakurri liburukiatage balioa pantailan. Polaritatea errespetatu.

5.2.2 AC Voltage Neurketa (V∼)

1. Insert the red test lead into the 'VΩHz%→←CAP' jack and the black test lead into the 'COM' jack.
2. Rotate the function switch to the 'V∼' position.
3. Konektatu proba-kableak AC bolumenarekin paraleloan.tage source or component to be measured.
4. Irakurri liburukiatagPantailako balioa.

5.2.3 DC Current Measurement (A−, mA−, µA−)

1. For µA/mA: Insert the red test lead into the 'mAµA' jack and the black test lead into the 'COM' jack.
2. For A: Insert the red test lead into the 'A' jack and the black test lead into the 'COM' jack.
3. Rotate the function switch to the appropriate 'A−', 'mA−', or 'µA−' position.
4. Connect the test leads in series with the circuit to be measured.
5. Irakurri uneko balioa pantailan.

Caution: Never connect the multimeter in parallel when measuring current, as this can blow the fuse or damage the meter.

5.2.4 AC Current Measurement (A∼, mA∼, µA∼)

1. Follow the same lead connection steps as for DC Current Measurement.
2. Rotate the function switch to the appropriate 'A∼', 'mA∼', or 'µA∼' position.
3. Connect the test leads in series with the circuit to be measured.
4. Irakurri uneko balioa pantailan.

5.2.5 Erresistentziaren neurketa (Ω)

1. Insert the red test lead into the 'VΩHz%→←CAP' jack and the black test lead into the 'COM' jack.
2. Rotate the function switch to the 'Ω' position.
3. Ziurtatu zirkuitua edo osagaia deskonektatuta dagoela erresistentzia neurtu aurretik.
4. Konektatu proba-kableak neurtu beharreko osagaira.
5. Irakurri erresistentziaren balioa pantailan.

5.2.6 Diode Test (→←)

1. Insert the red test lead into the 'VΩHz%→←CAP' jack and the black test lead into the 'COM' jack.
2. Rotate the function switch to the '→←' position.
3. Konektatu proba-kable gorria diodoaren anodora eta proba-kable beltza katodora.
4. Pantailak aurrerako bolumena erakutsiko dutage drop. Reverse the leads; the display should show 'OL' (Open Loop) for a good diode.

5.2.7 Continuity Test (→←)

1. Insert the red test lead into the 'VΩHz%→←CAP' jack and the black test lead into the 'COM' jack.
2. Rotate the function switch to the '→←' position and press the 'FUNC' button to select continuity mode (indicated by a buzzer icon).
3. Konektatu proba-kableak zirkuituan edo osagaian zehar.
4. Erresistentzia 50Ω gutxi gorabehera baino txikiagoa bada, txisteak joko du jarraitutasuna adieraziz.

5.2.8 Harremanik gabeko Voltage (NCV) Detekzioa

1. Rotate the function switch to the 'NCV' position.
2. Mugitu multimetroaren goiko aldea (NCV sentsorea dagoen tokia) probatzen ari den eroalearen ondora.
3. AC boltage is detected, the multimeter will emit an audible beep and/or flash an indicator light. The intensity of the indication may vary with voltageta indarra.

5.2.9 Relative Measurement (REL)

1. Select the desired measurement function (e.g., voltage, erresistentzia).
2. Take a reference measurement.
3. Press the 'REL' button. The display will show '0' and subsequent measurements will be displayed as a difference from the stored reference value.
4. Press 'REL' again to exit relative mode.

6. Zehaztapenak

The following table details the technical specifications for the Mastech MS8250A Digital Multimeter.

6.1 Zehaztapen orokorrak

• Pantaila: 4000 zenbaketa
• Energia iturria: 2 x LR44 bateria (barne)
• Neurriak (L x W x H): 6.3 x 3.54 x 1.97 hazbete (160 x 90 x 50 mm)
• Pisua: 1.1 libra (0.5 kilogramo)
• Segurtasunaren balorazioa: CAT IV 600V

7. Mantentzea

7.1 Garbiketa

Multimetroa garbitzeko, garbitu kaxa publizitatearekin.amp zapi eta detergente leun batekin. Ez erabili urratzailerik edo disolbatzailerik. Ziurtatu gailua guztiz lehor dagoela erabili aurretik.

7.2 Bateria ordezkatzea

When the low battery indicator appears on the display, replace the batteries as described in Section 4.1. Using the multimeter with low batteries may result in inaccurate readings.

7.3 Biltegiratzea

If the multimeter is not to be used for an extended period, remove the batteries to prevent leakage and potential damage to the device. Store the multimeter in a cool, dry place, away from direct sunlight and extreme temperatures.

8. Arazoak

• Ez dago pantailarik edo pantaila ahula: Egiaztatu bateriaren instalazioa eta karga. Ordeztu bateriak beharrezkoa bada.
• Irakurketa okerrak: Ensure the function switch is set to the correct measurement type and range. Verify test lead connections. Check battery level.
• 'OL' (Gainezka) pantaila: Neurtutako balioak hautatutako tartea gainditzen du. Aldatu tarte handiago batera edo ziurtatu sarrera neurgailuaren gehienezko gaitasunen barruan dagoela.
• Jarraitasun-txisturik ez: Ensure the function switch is in the continuity position and the 'FUNC' button has been pressed to select continuity mode. Check test leads for damage.

If problems persist, contact Mastech customer support or your local distributor for assistance.

9. Bermea eta Laguntza

For warranty information and technical support, please refer to the documentation provided with your purchase or visit the official Mastech webgunea. Saltzailearekin zuzenean ere harremanetan jar zaitezke laguntza eskatzeko.

For more information about Mastech products, visit the Mastech Store.