1. Introduzzjoni
The Infurider YF-38C is a compact, pen-type digital multimeter designed for safe and accurate electrical troubleshooting in various applications, including automotive and household circuits. This device features a 6000-count display and offers automatic ranging for ease of use. It is capable of measuring AC/DC voltage, resistance, capacitance, and continuity, as well as performing diode tests. Its ergonomic design ensures comfortable handling, and integrated features like a backlight and flashlight enhance usability in diverse environments.
2. Informazzjoni dwar is-Sigurtà
Dejjem segwi l-prekawzjonijiet ta' sigurtà li ġejjin biex tevita korriment personali jew ħsara lill-multimetru:
- Ensure the multimeter is in good working condition before use. Inspect test leads for damage.
- Applikax voltage or current that exceeds the maximum specified limits for the meter. The YF-38C features double insulation protection and is rated CE 600V CAT III.
- Oqgħod attent meta taħdem bil-voltag'il fuq minn 30V AC RMS, 42V peak, jew 60V DC. Dawn il-volumitages joħolqu periklu ta' xokk.
- Dejjem skonnettja l-enerġija għaċ-ċirkwit li qed jiġi ttestjat qabel ma tkejjel ir-reżistenza, il-kapaċitanza, jew il-kontinwità.
- Tħaddimx il-miter f'ambjenti b'gass splussiv, fwar, jew trab.
- Ibdel il-batteriji immedjatament meta jidher l-indikatur ta' batterija baxxa biex tiżgura qari preċiż.
- A buzzer will sound when the circuit is disconnected or connected, providing an audible safety alert.
3. Karatteristiċi tal-prodott
The Infurider YF-38C Digital Pen Multimeter offers a range of features for efficient electrical testing:
- Wiri ta' 6000 Għadd: Provides high-resolution measurements.
- Auto-Rang: Automatically selects the correct measurement range.
- AC / DC Voltage Kejl: Measures from 600mV to 600V.
- Kejl tar-Reżistenza: Measures from 600Ω to 60MΩ.
- Kejl tal-Kapaċitanza: Supports capacitance testing.
- Test ta' Kontinwità: Audible buzzer for quick circuit checks.
- Test tad-Diode: Għall-iċċekkjar tal-funzjonalità tad-dijodi.
- Żamma tad-Data: Jiffriża l-qari muri għal reġistrazzjoni konvenjenti.
- Dawl ta' wara LCD: Improves visibility in dimly lit conditions.
- Flashlight: Integrated LED light for illuminating the work area.
- Mitfi Awtomatiku: Conserves battery life after a period of inactivity.
- Double Insulation Protection: Ittejjeb is-sigurtà tal-utent.

Figure 1: Key features of the Infurider YF-38C Pen Multimeter.
4. Kontenut tal-Pakkett
Ivverifika li l-oġġetti kollha huma preżenti fil-pakkett:
- Infurider YF-38C Digital Pen Multimeter
- Wavel tat-Test (integrati)
- 2 x 1.5V Batteriji AAA
- Manwal għall-Utent

Figura 2: Oġġetti inklużi fil-pakkett tal-prodott.
5. Layout tal-Apparat
Familiarize yourself with the components of your YF-38C multimeter:
- Display LCD: Shows measurement readings, units, and function symbols.
- Swiċċ tal-Funzjoni: Rotates to select measurement modes (e.g., V~, V-, Ω, CAP, Diode, Continuity).
- Buttuna ŻOMM: Press to freeze the current reading on the display. Long press to activate/deactivate backlight and flashlight.
- Buttuna Agħżel: Used to switch between AC/DC modes or other sub-functions within a main mode.
- Input Jack (Red): For the positive test lead.
- Input Jack (Black): For the common (negative) test lead.
- Flashlight LED: Jipprovdi dawl għaż-żona tax-xogħol.
- Kompartiment tal-batterija: Located at the rear for AAA batteries.

Figura 3: Quddiem view of the YF-38C multimeter.
6. Installazzjoni tal-batterija
The YF-38C multimeter requires two 1.5V AAA batteries for operation.
- Sib l-għatu tal-kompartiment tal-batterija fuq wara tal-multimetru.
- Uża tornavit biex tħoll il-kamin li jżomm l-għatu tal-batterija.
- Remove the cover and insert two AAA batteries, observing the correct polarity (+ and -).
- Erġa 'poġġi l-għatu tal-batterija u ssikka l-vit.
Nota: Il-multimetru se juri indikatur ta' batterija baxxa meta l-volum tal-batterija jkun baxx.tage is insufficient for accurate measurements. Replace batteries promptly.

Figure 4: Low battery indication and battery type.
7. Istruzzjonijiet Operattivi
Follow these steps for various measurement functions:
7.1. AC/DC Voltage Kejl
- Turn the function switch to the 'V~' (AC Voltage) jew 'V-' (Volum DCtage) position. The meter will automatically select the appropriate range.
- Connect the red test lead to the positive side of the circuit and the black test lead to the negative side (or neutral/ground for AC).
- Aqra l-voltage valur fuq il-wiri LCD.
- Use the SELECT button to switch between AC and DC voltage if the function switch combines them.

Figura 5: Kejl tal-Volum tal-ACtage.
7.2. Kejl tar-Reżistenza
- Ensure the circuit under test is completely de-energized.
- Turn the function switch to the 'Ω' (Resistance) position.
- Connect the test leads across the component or circuit section where resistance is to be measured.
- Aqra l-valur tar-reżistenza fuq id-displej LCD.
7.3. Test ta' Kontinwità
- Ensure the circuit under test is completely de-energized.
- Turn the function switch to the continuity symbol (often shared with resistance or diode).
- Qabbad il-wajers tat-test madwar iċ-ċirkwit jew il-komponent.
- Jekk ir-reżistenza tkun taħt madwar 50Ω, il-buzzer se jdoqq, u jindika kontinwità.
7.4. Test tad-Dijodu
- Ensure the circuit under test is completely de-energized.
- Turn the function switch to the diode symbol.
- Qabbad il-wajer tat-test aħmar mal-anodu u l-wajer tat-test iswed mal-katodu tad-dijodu. Id-displej se juri l-volum 'il quddiemtagqatra e.
- Reverse the leads. The display should show 'OL' (Open Line) for a good diode.
7.5. Kejl tal-Kapaċitanza
- Kun żgur li l-kapaċitatur ikun skarikat kompletament qabel ma tittestja biex tevita ħsara lill-miter.
- Turn the function switch to the capacitance symbol.
- Qabbad il-wajers tat-test mat-terminals tal-kapaċitatur.
- Aqra l-valur tal-kapaċità fuq il-wiri LCD.
7.6. Żamma tad-Data, Dawl ta' Wara, u Torċa
- Żamma tad-Data: Press the 'HOLD' button briefly to freeze the current reading. Press again to release.
- Dawl ta' wara/Torċa: Long press the 'HOLD' button to turn on the LCD backlight and the integrated flashlight. Long press again to turn them off.

Figure 6: Backlight, Flashlight, Data Hold, and Auto Power Off features.

Figura 7: Eżamples of AC Voltage, DC Voltage, Resistance, and Continuity Tests.
8. Manutenzjoni
Proper maintenance ensures the longevity and accuracy of your multimeter:
- Tindif: Imsaħ il-miter b'reklamaramp drapp u deterġent ħafif. Tużax abrażivi jew solventi.
- Ħażna: Store the multimeter in a cool, dry place away from direct sunlight and extreme temperatures. If storing for extended periods, remove the batteries to prevent leakage.
- Kalibrazzjoni: For professional use, periodic calibration by a qualified technician is recommended to maintain accuracy.
9 Issolvi l-problemi
If you encounter issues with your YF-38C multimeter, refer to the following common problems and solutions:
| Problema | Kawża Possibbli | Soluzzjoni |
|---|---|---|
| L-ebda wiri jew wiri mudlam | Dead or low batteries; Incorrect battery installation | Replace batteries; Check battery polarity |
| 'OL' (Overload) displayed | Measurement exceeds selected range; Open circuit | Ensure correct range (auto-ranging should handle most cases); Check for open circuit in continuity/resistance tests |
| Qari mhux eżatt | Low battery; Poor test lead connection; External interference | Replace batteries; Ensure firm connection of test leads; Move away from strong electromagnetic fields |
| Buzzer not working for continuity | Ir-reżistenza taċ-ċirkwit hija għolja wisq; Il-miter mhux fil-modalità ta' kontinwità | Ensure resistance is below threshold (approx. 50Ω); Select continuity mode |
10. Speċifikazzjonijiet
Detailed technical specifications for the Infurider YF-38C Digital Pen Multimeter:
| Funzjoni tal-Kejl | Firxa | Riżoluzzjoni | Eżattezza |
|---|---|---|---|
| DC Voltage | 600.0mV - 600V | 0.1mV - 1V | ±(0.5% of rdg + 2 digits) for 600mV-60V; ±(0.8% of rdg + 2 digits) for 600V |
| AC Voltage | 6.000V - 600V | 1mV - 1V | ±(1.0% of rdg + 3 digits) for 6V-60V; ±(1.5% of rdg + 3 digits) for 600V |
| Reżistenza | 600.0Ω - 60.00MΩ | 0.1Ω - 10kΩ | Varies by range (e.g., ±(0.8% of rdg + 5 digits) for 600Ω) |
| Kapaċità | Not explicitly detailed in provided specs, but supported. | N/A | N/A |
| Kontinwità | Audible buzzer below approx. 50Ω | N/A | N/A |
| Test tad-Diode | Quddiem voltagwirja tal-waqgħa elettronika | N/A | N/A |
Speċifikazzjonijiet Ġenerali:
- Wiri: LCD ta' 6000 Għadd
- Sors tal-Enerġija: 2 x 1.5V Batteriji AAA
- Protezzjoni ta' tagħbija żejda: 600V DC jew AC RMS
- Impedance (Voltage): 10MΩ (More than 100MΩ on 600mV range)
- Frequency Range (AC): 40 sa 2kHz
- Konformità tas-Sigurtà: CE 600V CAT III, FDA, FCC
- Temperatura operattiva: Sa 50°C
- Piż tal-oġġett: 177 Gramm
- Dimensjonijiet tal-pakkett: 30.9 x 9.3 x 4.8 ċm

Figure 8: Product Specification Test Table.
11. Garanzija u Appoġġ
Infurider is committed to customer satisfaction. If you are not 100% satisfied with your product, please contact us. Our professional support team is dedicated to resolving any issues and aims to respond within 24 hours. For further assistance or warranty claims, please refer to the contact information provided with your purchase or visit the official Infurider websit.