Bhuku rekushandisa reSealey MM19 Digital Multimeter 7 Function

1. Nhanganyaya

This manual provides instructions for the safe and effective use of the Sealey MM19 Digital Multimeter. The MM19 is a general-purpose multimeter designed for measuring various electrical parameters, including AC and DC voltage, DC current, resistance, audible continuity, and diode/transistor verification. Please read this manual thoroughly before operation and retain it for future reference.

2. Safety Information

Always observe basic safety precautions when using electrical test equipment to reduce the risk of fire, electric shock, or personal injury. This device complies with IEC 1010 and CE CAT II safety standards.

• Do not exceed the maximum input limits for any function. Refer to the specifications section for details.
• Usambofa wakaisa voltage to the meter when the rotary switch is set to Resistance (Ω), Diode, Continuity, or Current (A) functions.
• Shandisa kungwarira paunenge uchishanda nevoltages above 30V AC RMS, 42V peak, or 60V DC. Aya voltages inokonzeresa njodzi.
• Ensure the test leads are in good condition, without cracked or broken insulation.
• Always connect the common (COM) test lead first and disconnect it last.
• Disconnect power to the circuit under test before measuring resistance or continuity.
• Dzorera bhatiri pakarepo when the low battery indicator appears to ensure accurate readings.

3. Chigadzirwa Pamusoroview

The Sealey MM19 Digital Multimeter features a clear LCD display, a central rotary switch for function selection, and input jacks for test leads.

The Sealey MM19 Digital Multimeter, shown with its yellow casing, large LCD display, rotary function switch, and red and black test leads connected to the input jacks.

Zvikamu:

• Chiratidziro cheLCD: Large (46 x 25mm) digital display for reading measurements.
• Rotary Switch: Inoshandiswa kusarudza basa rekuyera rinodiwa uye nzvimbo yaunoda.
• Jeki reVΩmA rekuisa: Zve voltage, resistance, and current measurements up to 200mA.
• 10ADC Input Jack: For high current measurements up to 10A DC (unfused).
• COM Input Jack: Zvakajairwa (negative) kuisa muzviyero zvese.
• Soketi ye hFE: For transistor (NPN/PNP) testing.
• Miedzo Inotungamira: Red (positive) and Black (negative) leads for connecting to circuits.

4. Setup

4.1. Kuiswa kwebhatiri

The Sealey MM19 Multimeter requires a 9V battery for operation. If the display does not illuminate or shows a low battery indicator, the battery needs to be installed or replaced.

1. Ita shuwa kuti multimeter yakadzimwa.
2. Tsvaga chivharo chebhatiri kuseri kweyuniti.
3. Bvisa sikuruu (zvikuruu) zvinosunga chifukidziro wochibvisa nokungwarira.
4. Connect a new 9V battery to the battery clips, observing correct polarity.
5. Place the battery inside the compartment and replace the cover, securing it with the screw(s).

4.2. Kubatanidza Test Leads

The multimeter is supplied with a pair of test leads (red and black).

• Insert the black test lead mu COM Jeki yekupinda (Yakajairika).
• Pazviyero zvakawanda (voltage, resistance, low current), insert the red test lead mu VΩmA jack yekupinda.
• For high DC current measurements (up to 10A), insert the red test lead mu 10ADC jack yekupinda.

5. Operating Instructions

To operate the multimeter, select the desired function and range using the rotary switch.

5.1. Kuyera DC Voltage (DCV)

1. Insert the red lead into the VΩmA jack and the black lead into the COM jack.
2. Set the rotary switch to the desired DCV range (e.g., 200m, 2000m, 20, 200, 1000). Start with the highest range if the voltage hazvizikanwi.
3. Batanidza bvunzo dzinotungamira mukati mechikamu kana dunhu kuti kuyerwa.
4. Verenga bhukutage kukosha pane LCD kuratidza.

5.2. Kuyera AC Voltage (ACV)

1. Insert the red lead into the VΩmA jack and the black lead into the COM jack.
2. Set the rotary switch to the desired ACV range (e.g., 200, 750). Start with the highest range if the voltage hazvizikanwi.
3. Batanidza bvunzo dzinotungamira mukati mechikamu kana dunhu kuti kuyerwa.
4. Verenga bhukutage kukosha pane LCD kuratidza.

5.3. Kuyera DC Current (DCA)

1. For currents up to 200mA: Insert the red lead into the VΩmA jack and the black lead into the COM jack.
2. For currents up to 10A: Insert the red lead into the 10ADC jack and the black lead into the COM jack.
3. Set the rotary switch to the desired DCA range (e.g., 200μ, 2000μ, 20m, 200m, 10A). Start with the highest range if the current is unknown.
4. Dzima simba kudunhu. Open the circuit where the current is to be measured.
5. Batanidza multimeter muzvikamu zvakatevedzana nedunhu.
6. Isa simba kudunhu uye uverenge kukosha kwazvino paLCD kuratidza.

5.4. Kuyera Kuramba (Ω)

1. Insert the red lead into the VΩmA jack and the black lead into the COM jack.
2. Set the rotary switch to the desired Resistance (Ω) range (e.g., 200, 2000, 20k, 200k, 2000k).
3. Iva nechokwadi chekuti dunhu riri kuyedzwa harina simba.
4. Batanidza bvunzo dzinotungamira mukati mechikamu kuti kuyerwa.
5. Verenga kukosha kwekupikisa pane LCD kuratidza.

5.5. Inonzwika Kuenderera Muedzo

1. Insert the red lead into the VΩmA jack and the black lead into the COM jack.
2. Set the rotary switch to the continuity symbol (speaker icon).
3. Iva nechokwadi chekuti dunhu riri kuyedzwa harina simba.
4. Batanidza matambo ekuyedza pachikamu kana waya.
5. If continuity exists (low resistance), the meter will emit an audible tone. The display will show the resistance value.

5.6. Diode/Transistor Verification Mode (hFE)

1. Insert the red lead into the VΩmA jack and the black lead into the COM jack for diode testing.
2. Set the rotary switch to the diode symbol.
3. Connect the red lead to the anode and the black lead to the cathode of the diode. The display will show the forward voltage drop. Reverse the leads; the display should show 'OL' (open loop) for a good diode.
4. For transistor hFE measurement, insert the transistor leads (Emitter, Base, Collector) into the appropriate sockets (E, B, C) in the hFE test socket, ensuring correct NPN or PNP type selection.
5. Verenga kukosha kwehFE pane LCD display.

6. Kuchengeta

6.1. Kuchenesa

Pukuta mita casing pamwe adamp jira nesipo isina kusimba. Usashandise zvinogumbura kana zvinonyungudutsa. Iva nechokwadi chekuti mita yacho yakaoma zvachose usati washandisa.

6.2. Kutsiviwa kwebhatiri

Refer to Section 4.1 for battery installation instructions. Replace the 9V battery when the low battery indicator appears on the display to maintain measurement accuracy.

7. Kugadzirisa matambudziko

• Hapana Chiratidziro: Tarisa kuiswa kwebhatiri uye iva nechokwadi chekuti bhatiri rachaja zvakakwana.
• 'OL' kana '1' paZviratidziro: This usually indicates an over-range condition or an open circuit. Select a higher range or check connections.
• Kuverenga Kusina kururama: Ensure the correct function and range are selected. Check test lead connections and battery condition.
• No Continuity Tone: Verify the circuit is de-energized and the leads are making good contact.

8. Zvinotsanangurwa

9. Warranty uye Tsigiro

For warranty information or technical support, please refer to the documentation provided with your purchase or contact Sealey customer service directly. Keep your proof of purchase for any warranty claims.