Mastech MS8264 Digital Multimeter Manual Kaiwhakamahi

1. Kupu Whakataki

The Mastech MS8264 is a manually-operated, 30-range digital multimeter designed for a wide array of electrical measurements. This versatile instrument is suitable for both professional and hobbyist use, offering functions such as AC/DC voltage and current, resistance, capacitance, frequency, and temperature measurement. Key features include a backlit display, data hold function, and an internal resettable fuse for enhanced safety.

2. Nga korero haumaru

To ensure safe operation and prevent damage to the meter, please read and follow all safety instructions carefully. This device conforms to the IEC1010-1 standard, rated for CAT III 600V and CAT II 1000V.

• Always inspect test leads for damage before use. Do not use if insulation is cracked or damaged.
• Kaua rawa e tono voltage to the current (A, mA) terminals when the function switch is set to current measurement. This can damage the meter.
• Ensure the function switch is set to the correct range i mua i te mahi i tētahi inenga.
• Kaua e neke atu i ngā uara tāuru mōrahi specified for each range.
• Kia tino tupato i te wa e mahi ana me nga iahiko ora. Always assume circuits are live until proven otherwise.
• Disconnect power to the circuit and discharge all high-voltage capacitors before measuring resistance, continuity, or capacitance.
• Replace the battery when the low battery indicator appears kia tika nga korero.

3. Ihirangi mokete

Manatokohia kei roto i to kete nga mea katoa kua whakarārangihia i raro nei:

• Mastech MS8264 Digital Multimeter
• Test Leads with shrouded plugs and capped tips (1 red, 1 black)
• Multi-functional Socket
• K-type Temperature Probe
• 9V Battery (installed)
• Pukapuka Kaiwhakamahi

Figure 3.1: Mastech MS8264 Multimeter and its accessories.

4. Hua Neke Atuview

The Mastech MS8264 Digital Multimeter features a large LCD display with backlight for clear readings, a rotary switch for function selection, and various input jacks for test leads and probes.

Whakaahua 4.1: Mua view of the Mastech MS8264 Digital Multimeter.

Āhuatanga matua:

• 30 measurement ranges for comprehensive testing.
• Backlit LCD display for visibility in various lighting conditions.
• Data Hold function to freeze the displayed reading.
• Whakaweto aunoa hei penapena i te roa o te pākahiko.
• Internal resettable fuse for overcurrent protection.
• Diode and Continuity test functions.
• Temperature measurement capability.

5. Tatūnga

5.1 Tāuta Pūhiko

The MS8264 multimeter comes with a 9V battery (6F22) pre-installed. If the battery needs replacement, refer to the Maintenance section.

5.2 Te hono i nga kaiarahi Whakamātautau

The test leads are essential for making electrical measurements. Always ensure they are securely connected to the appropriate input jacks.

1. Whakauruhia te mata whakamatautau pango ki roto i te COM Hīki (noa).
2. Mo te nuinga voltage, resistance, frequency, capacitance, diode, and continuity measurements, insert the red test lead into the VΩHz koki.
3. For current measurements (mA), insert the red test lead into the mA-hFE koki.
4. Mō ngā inenga au teitei (tae atu ki te 10A), whakauruhia te taura whakamātautau whero ki roto i te 10A koki.

Figure 5.1: Standard test leads.

Figure 5.2: Test lead tips with protective caps.

6. Nga Tohutohu Whakahaere

6.1 Power On/Off and Basic Functions

• Pātene ON/OFF: Press to turn the multimeter on or off.
• Pātene HOLD: Pēhia ki te whakatio i te panui o naianei kei te whakaaturanga. Patohia ano kia tukuna.
• PATU Rama. Press to activate the display backlight. Press again to turn off.
• Whakaweto Aunoa: The meter will automatically power off after approximately 15 minutes of inactivity to save battery.

6.2 DC Voltage Ine (V–)

1. Insert the black lead into the COM jack and the red lead into the VΩHz koki.
2. Whakatakotoria te pana hurihuri ki te DC Voltage e hiahiatia anatage (V–) range (e.g., 2V, 20V, 200V, 1000V). If the voltagKi te kore e mōhiotia te e, tīmata ki te awhe teitei rawa (1000V) ka whakaitihia mēnā e tika ana.
3. Tūhonohia ngā porotiti whakamātautau puta noa i te wāhanga, i te ara iahiko rānei hei ine.
4. Pānuihia te voltage uara kei runga i te whakaaturanga.

6.3 AC Voltage Ine (V∼)

1. Insert the black lead into the COM jack and the red lead into the VΩHz koki.
2. Tautuhia te huri hurihuri ki te Vol AC e hiahiatia anatage (V∼) range (e.g., 2V, 20V, 200V, 750V). If the voltagKi te kore e mōhiotia te e, tīmata ki te awhe teitei rawa (750V) ka whakaitihia mēnā e tika ana.
3. Tūhonohia ngā porotiti whakamātautau puta noa i te wāhanga, i te ara iahiko rānei hei ine.
4. Pānuihia te voltage uara kei runga i te whakaaturanga.

6.4 DC Current Measurement (A–)

Tupato: Kaua rawa e hono te mita i te taha whakarara ki te pūhiko hikotage source when measuring current. Always connect in series with the load.

1. Insert the black lead into the COM koki.
2. For currents up to 200mA, insert the red lead into the mA-hFE jack. For currents up to 10A, insert the red lead into the 10A koki.
3. Set the rotary switch to the desired DC Current (A–) range (e.g., 20mA, 200mA, 10A).
4. Open the circuit where current is to be measured and connect the test probes in series with the load.
5. Pānuihia te uara o nāianei i te whakaaturanga.

6.5 AC Current Measurement (A∼)

Tupato: Kaua rawa e hono te mita i te taha whakarara ki te pūhiko hikotage source when measuring current. Always connect in series with the load.

1. Insert the black lead into the COM koki.
2. For currents up to 200mA, insert the red lead into the mA-hFE jack. For currents up to 10A, insert the red lead into the 10A koki.
3. Set the rotary switch to the desired AC Current (A∼) range (e.g., 2mA, 200mA, 10A).
4. Open the circuit where current is to be measured and connect the test probes in series with the load.
5. Pānuihia te uara o nāianei i te whakaaturanga.

6.6 Te Ine Ātete (Ω)

Tupato: Me mohio kua whakakorehia te hiko o te ara iahiko, ka tukuna katoatia nga puritanga i mua i te ine i te parenga.

1. Insert the black lead into the COM jack and the red lead into the VΩHz koki.
2. Set the rotary switch to the desired Resistance (Ω) range (e.g., 200Ω, 2KΩ, 20MΩ, 200MΩ).
3. Connect the test probes across the resistor or component.
4. Panuihia te uara aukati kei runga i te whakaaturanga.

6.7 Te Ine Unga (F)

Tupato: Me whakarite kia tino pau te hiko o te pūnga i mua i te ine hei ārai i te kino o te mita.

1. Insert the black lead into the COM jack and the red lead into the VΩHz koki.
2. Set the rotary switch to the Capacitance (F) range (e.g., 20nF, 200nF, 2µF, 20µF).
3. Honoa ngā probe whakamātautau ki ngā pito o te capacitor.
4. Panuihia te uara capacitance kei runga i te whakaaturanga.

6.8 Te Ine i te Auautanga (Hz)

1. Insert the black lead into the COM jack and the red lead into the VΩHz koki.
2. Set the rotary switch to the Frequency (Hz) range (20kHz).
3. Tūhonohia ngā porotiti whakamātautau ki te pūtake tohu.
4. Pānuihia te uara auau kei runga i te whakaaturanga.

6.9 Temperature Measurement (°C)

1. Insert the K-type temperature probe into the mA-hFE a COM jacks, ensuring correct polarity.
2. Set the rotary switch to the Temperature (°C) range.
3. Whakatakotoria te pito o te ine pāmahana ki runga, ki te taha rānei o te mea e inehia ana te pāmahana.
4. Pānuihia te uara pāmahana kei runga i te whakaaturanga.

Figure 6.1: K-type Temperature Probe.

Figure 6.2: K-type Temperature Probe Connector.

6.10 Whakatautau Diode

1. Insert the black lead into the COM jack and the red lead into the VΩHz koki.
2. Set the rotary switch to the Diode Test position (symbol: →|–).
3. Honoa te pūwero whero ki te anode me te pūwero pango ki te cathode o te diode. Ka whakaatuhia te tere whakamua e te whakaaturanga.tage maturuturu.
4. Whakahurihia ngā pūwero. Me whakaatu te whakaaturanga i te 'OL' (Open Loop) mō te diode pai.

6.11 Whakamātautau Tonu

1. Insert the black lead into the COM jack and the red lead into the VΩHz koki.
2. Set the rotary switch to the Continuity Test position (symbol: ♫).
3. Honoa ngā probe whakamātautau puta noa i te ara iahiko, i te wāhanga rānei.
4. Mena kei raro iho te ātete i te 50Ω, ka tangi te buzzer, e tohu ana i te haere tonu.

6.12 hFE (Transistor Test)

1. Insert the multi-functional socket into the COM a mA-hFE hakiaki.
2. Tautuhia te huri hurihuri ki te tuunga hFE.
3. Insert the NPN or PNP transistor leads into the corresponding holes in the multi-functional socket.
4. Pānuihia te uara hFE (te whiwhinga o naianei DC) i runga i te whakaaturanga.

7. Tiaki

7.1 Whakakapinga Pūhiko

When the battery symbol appears on the display, the 9V battery (6F22) needs to be replaced.

1. Me whakarite kia whakawetohia te mita maha, ā, kua momotuhia ngā taura whakamātautau katoa.
2. Kimihia te uhi o te wahanga pākahiko kei muri o te mita.
3. Wetekina te tīwiri pupuri, ka tangohia te taupoki.
4. Carefully remove the old battery and replace it with a new 9V (6F22) battery, observing correct polarity.
5. Whakakapia te taupoki o te wāhanga pākahiko ka whakau ki te/ngā tīwiri.

7.2 Fuse Information

The MS8264 features an internal resettable fuse. In case of an overcurrent event, the fuse will trip to protect the meter. After the fault is cleared, the fuse will reset automatically. If the meter does not function after an overcurrent event, allow a short period for the fuse to reset. If issues persist, contact support.

7.3 Te horoi

Hei horoi i te mita, horoia te keehi me te panuiamp he kakahu me te horoi ngawari. Kaua e whakamahi i te abrasive me te whakarewa. Me whakarite kua maroke katoa te mita i mua i te whakamahi.

8. Te Raru

• Kāore he Whakaaturanga, he Whakaaturanga Ngāwari rānei: Check battery level. Replace the 9V battery if necessary.
• Pānui Korekore: Ensure test leads are securely connected to both the meter and the circuit. Check for damaged test leads. Verify the correct function and range are selected.
• Whakaaturanga 'OL' (Tapanui) This indicates the measured value exceeds the selected range. Switch to a higher range. For resistance, it may indicate an open circuit.
• No Reading in Current Mode: Ensure the meter is connected in series with the load. Check if the internal resettable fuse has tripped due to overcurrent.
• Ko nga Panuitanga Pamahana Heke: Ensure the K-type probe is correctly inserted and making good contact with the object being measured.

If troubleshooting steps do not resolve the issue, refer to the Warranty and Support section.

9. Whakatakotoranga

10. Pūtāhui me te Tautoko

The Mastech MS8264 Digital Multimeter comes with a 1-Year Tekpower USA Warranty. For warranty claims or technical support, please refer to the contact information provided with your purchase documentation or visit the official Tekpower webpae.