1. Nhanganyaya
Thank you for choosing the HANMATEK S1 DM20 Digital Multimeter. This intelligent multimeter is designed for safe and accurate measurements of various electrical parameters. Please read this manual thoroughly before use to ensure proper operation and to prevent potential hazards.

Image 1.1: HANMATEK S1 DM20 Digital Multimeter with included test leads.
2. Safety Information
WARNING: Failure to follow these safety instructions may result in electric shock, fire, or personal injury.
- To prevent erroneous readings and avoid electric shock or personal injury, replace the battery as soon as the low battery voltage symbol appears.
- To prevent electric shock or personal injury, turn off the device and ensure test leads are disconnected from the circuit under test before opening the battery cover to replace the battery.
- Do not measure any AC or DC voltage exceeding 600V to prevent electric shock or damage to the instrument.
- Always inspect the multimeter and test leads for any damage before use. Do not use if damaged.
- Ensure your hands are dry when operating the multimeter.
- Do not operate the multimeter in explosive gas, vapor, or dusty environments.
3. Zvigadzirwa zveChigadzirwa uye Zvikamu
The HANMATEK S1 DM20 Digital Multimeter is equipped with several features for versatile measurements. Familiarize yourself with the components shown below.

Mufananidzo 3.1: Mberi view of the multimeter with labeled components.
- NCV Detection Induction Area
- Soft Rubber Cover
- LCD skrini
- NCV / Flashlight Button
- Power Button / Function Selection Button (SEL)
- Current Input End (A mA)
- Voltage Resistor Input End (INPUT)
- Public End (COM)
- Backlight / Data Hold Button
- NCV Detection Indicator
- Tochi

Mufananidzo 3.2: Pamusoroview of multimeter functions including AC/DC Voltage, AC/DC Current, Resistance, Continuity, Backlight, Data Hold, NCV, Flashlight, and 6000 Count display.
4. Setup
4.1 Package Zviri mukati
Usati watanga, iva nechokwadi chekuti zvinhu zvese zviripo mupakeji:
- HANMATEK S1 DM20 Digital Multimeter
- 3 x 1.5V AAA Mabhatiri
- Test Leads (Dzvuku uye Nhema)
- User Manual

Image 4.1: Package contents including the multimeter, batteries, test leads, and manual.
4.2 Kuiswa kwebhatiri
The multimeter requires 3 x 1.5V AAA batteries. Follow these steps to install them:
- Ensure the multimeter is powered off and test leads are disconnected.
- Tsvaga iyo bhatiri mukamuri kumashure kweiyo multimeter.
- Shandisa screwdriver kuvhura chivharo chebhatiri.
- Isa mabhatiri maviri eAAA, uchicherechedza polarity chaiyo (+/-).
- Tsiva chivharo chebhatiri uye chichengetedze nescuru.

Mufananidzo 4.2: Yakadzama view of the multimeter's rear, showing the battery bay and stable holder.
5. Operating Instructions
The HANMATEK S1 DM20 features auto-ranging for most measurements, simplifying operation.
5.1 Simba On/Kudzima
- Press the SEL button to power on the multimeter.
- Multimeter inodzima yega mushure mekunge yagara kwenguva yakati rebei kuti ichengetedze hupenyu hwebhatiri.
- Kuti udzime nemaoko, dzvanya uye ubate iyo SEL bhatani.
5.2 Basa Sarudzo
The multimeter automatically detects the measurement type (voltage, resistance, continuity) when test leads are connected. For specific functions or to switch between AC/DC, press the SEL bhatani pfupi.
5.3 Zviyero zvekutanga
Unganidza iyo tsvuku bvunzo inotungamira kune iyo INPUT terminal uye iyo nhema bvunzo inotungamira kune iyo COM terminal for most measurements.
- Voltage (AC/DC): Connect test leads in parallel to the circuit or component. The multimeter will automatically detect AC or DC voltage.
- Current (AC/DC): Connect test leads in series with the circuit. Use the A mA terminal for current measurements. Ensure the circuit is de-energized before connecting.
- Resistance: Connect test leads across the component. Ensure the component is isolated from power.
- Continuity: Connect test leads across the circuit. A buzzer will sound if continuity is detected.
- Diode: Connect test leads across the diode.
- Frequency: Connect test leads to the signal source.

Image 5.1: Demonstrations of NCV testing, resistance test, current measuring, voltage measuring, and on-off test.
5.4 Vasina-Kubata Voltage (NCV) Kuonekwa
Basa reNCV rinobvumira kuona AC voltage pasina kuonana kwakananga.
- Press the NCV / Flashlight bhatani rekuti ushandise NCV mode.
- Place the NCV detection area (top of the multimeter) near the conductor.
- Kana AC voltage is detected, the NCV LED will flash, and the buzzer will sound. The LCD screen will display segments ('-' to '----') indicating signal strength.

Image 5.2: NCV function detecting voltage in a live line versus a null line.
5.5 Backlight and Data Hold
- Backlight: Dzvanya iyo Backlight / Data Hold button briefly to turn the LCD backlight on/off.
- Data Hold: Dzvanya uye ubate iyo Backlight / Data Hold bhatani kuti uomese kuverenga kuripo pachiratidziro. Dzvanya zvakare kuti ubvise.
5.6 Tochi
- Dzvanya uye ubate iyo NCV / Flashlight button to turn the built-in flashlight on/off.
6. Kuchengeta
- Kuchenesa: Wipe the multimeter with a damp jira uye nyoro detergent. Usashandise abrasives kana solvents.
- Storage: Store the multimeter in a dry, cool place away from direct sunlight. If storing for extended periods, remove the batteries to prevent leakage.
- Kutsiviwa kwebhatiri: Replace batteries promptly when the low battery indicator appears to ensure accurate readings. Refer to Section 4.2 for instructions.
7. Kugadzirisa matambudziko
- No Display/Power On: Tarisa kuisirwa kwebhatiri uye ona kuti mabhatiri haana kupera. Dzorera kana zvakakodzera.
- Kuverenga Kusina Kurongeka: Ensure test leads are properly connected and not damaged. Verify the correct measurement function is selected (though auto-ranging handles most). Check battery level.
- No NCV Detection: Ensure NCV mode is activated. The detection area must be close to the AC voltage source.
- Auto Power Off Too Soon: This is a power-saving feature. The device will power off after a period of inactivity.
8. Zvinotsanangurwa
| Feature | Tsanangudzo |
|---|---|
| Model Number | DM20 |
| Display Counts | 4000 |
| Safety Rating | 600V CAT II, Pollution Degree 2, IEC61010 |
| Simba Source | 3 x 1.5V AAA Mabhatiri |
| Dimensions | 147mm x 71mm x 45mm (7.1 x 4.5 x 14.7 cm) |
| Kurema | 220 g |
| Special Features | NCV, Auto-Ranging, Data Hold, Auto Power-Off, Backlight, Flashlight |
9. Warranty uye Tsigiro
The HANMATEK S1 DM20 Digital Multimeter comes with a 24-mwedzi waranti kubva pazuva rekutenga. Iyi waranti inovhara kukanganisa kwekugadzira pasi pekushandiswa kwakajairwa.
For technical support, warranty claims, or any inquiries, please contact HANMATEK customer service through their official channels or the retailer where the product was purchased. You can find more information on the HANMATEK Brand Store.





