BTMETER BT-38B
BTMETER Digital Pen Multimeter BT-38B User Manual
Model: BT-38B (2000 Counts)
1. Introduktion
Thank you for choosing the BTMETER Digital Pen Multimeter BT-38B. This compact and versatile instrument is designed for accurate measurement of AC/DC voltage, resistance, and continuity. Its pen-type design, backlit screen, and integrated flashlight make it ideal for various electrical testing applications in residential, industrial, and DIY settings. Please read this manual thoroughly before operation to ensure safe and proper use.
2. Sikkerhedsoplysninger
Overhold altid sikkerhedsforanstaltningerne, når du bruger elektrisk testudstyr. Undladelse af at gøre dette kan resultere i elektrisk stød, personskade eller beskadigelse af måleren eller udstyret under test.
- Overskrid ikke de maksimale inputværdier, der er angivet for hvert måleområde.
- Udvis ekstrem forsigtighed, når du arbejder med voltagover 30V AC RMS, 42V peak eller 60V DC. Disse voluminertages udgør en stødfare.
- Undersøg testledningerne for skader før hver brug. Må ikke anvendes, hvis isoleringen er kompromitteret.
- Ensure the function switch is in the correct position for the desired measurement before connecting to the circuit.
- Brug ikke måleren, hvis den ser ud til at være beskadiget eller ikke fungerer korrekt.
- Keep hands and fingers behind the probe barriers during testing.
- Udskift batterierne med det samme, når indikatoren for lavt batteri vises, for at sikre nøjagtige aflæsninger.
3. Pakkens indhold

Figur 3.1: Pakkens indhold
The BTMETER BT-38B package typically includes:
- 1 x BTMETER Digital Pen Multimeter (BT-38B)
- 1 x brugermanual
- 2 x AAA Batteries (may be included separately or pre-installed)
4. Produktet er slutview og nøglefunktioner

Figur 4.1: Nøglefunktioner overview
The BT-38B is designed for ease of use with clearly labeled components:
- Lamp Lys: Provides illumination for working in dim environments.
- Test Lead Fixture: Securely holds the test leads.
- LCD-skærm: Viser måleaflæsninger, enheder og indikatorer.
- Vippekontakt: Used to select between OFF, Voltage (V), and Ohms (Ω) / Continuity / Diode Test modes.
- HOLD-tast: Press to hold the current reading on the display. Press again to exit.
- Baggrundslys/lommelygte-knap: Press for more than 2 seconds to turn on the backlight. Press again for more than 2 seconds to turn it off. The backlight automatically turns off after 15 seconds. A short press activates the front LED flashlight.
- SELECT-tast: In the Ohms/Continuity/Diode Test range, press this key to cycle through Resistance, Diode, and Continuity test modes. In Voltage mode, it switches between DC and AC voltage målinger.
- Batteridæksel: Access point for battery installation and replacement.
- COM Input Test Lead: Common (negative) input for measurements.

Figure 4.2: Functional Icons
5. Opsætning
5.1 Batteriinstallation
The BTMETER BT-38B requires two AAA batteries for operation.

Figur 5.1: Udskiftning af batteri
- Locate the battery cover at the bottom of the multimeter.
- Rotate the battery bin counter-clockwise until it pops up.
- Carefully pull out the battery bin.
- Isæt to AAA-batterier, og sørg for at polariteten (+/-) vender korrekt.
- Slide the battery bin back into the multimeter and rotate clockwise to secure it.
Når batteriikonet 🔋 lights up on the screen, it indicates that the battery needs to be replaced.
6. Betjeningsvejledning
6.1 Generel drift
- Turn the toggle switch from OFF to the desired measurement function (Voltage or Ohms/Continuity/Diode).
- Tilslut testledningerne til det kredsløb eller den komponent, der testes.
- Aflæs måleværdien på LCD-displayet.
- The meter features an Auto Power Off function after 15 minutes of inactivity to conserve battery life. A "BEEP" warning will sound before auto power off.
6.2 AC/DC Voltage Måling
The BT-38B can measure AC voltage from 2V to 600V and DC voltage fra 200 mV til 600 V.
- Turn the toggle switch to the "V" position.
- Tryk på VÆLGE button to switch between AC and DC voltage modes as needed. The display will indicate "AC" or "DC".
- Connect the red test lead to the positive (+) side of the circuit and the black test lead (COM) to the negative (-) side or ground.
- Læs bindtage -værdi på LCD -displayet.
6.3 Modstandsmåling
Measure resistance from 200 Ohm to 20M Ohm.
- Turn the toggle switch to the "Ω" position.
- Sørg for, at kredsløbet er spændingsløst, før du måler modstanden.
- Tilslut testledningerne på tværs af den komponent, hvis modstand du vil måle.
- Aflæs modstandsværdien på LCD-displayet.
6.4 Kontinuitetstest
The built-in buzzer sounds if resistance is less than 50Ω.
- Turn the toggle switch to the "Ω" position.
- Tryk på VÆLGE button until the continuity symbol (a sound wave icon) appears on the display.
- Tilslut testledningerne på tværs af kredsløbet eller komponenten.
- Hvis der er kontinuitet (lav modstand), vil summeren lyde.
6.5 Dataholdefunktion
Sådan fryser du den aktuelle aflæsning på displayet:
- Tryk på HOLDE button during a measurement. The "HOLD" indicator will appear.
- Tryk på HOLDE button again to release the data hold and resume live readings.
6.6 Baggrundsbelysning og lommelygte

Figure 6.1: LED Flashlight in Use
- Baggrundsbelysning: Press and hold the backlight button (sun icon) for more than 2 seconds to turn on the LCD backlight. Press and hold again for more than 2 seconds to turn it off. The backlight will automatically turn off after 15 seconds.
- Lommelygte: A short press of the backlight button (sun icon) will activate the front LED flashlight, useful for illuminating dark work areas.
7. Vedligeholdelse
7.1 Rengøring
Wipe the meter with a dry, clean cloth. Do not use abrasives or solvents.
7.2 Udskiftning af batteri
Refer to Section 5.1 for detailed instructions on battery replacement. Always use fresh AAA batteries.
7.3 Opbevaring
If the meter is not used for an extended period, remove the batteries to prevent leakage and damage. Store in a cool, dry place away from direct sunlight.
8. Fejlfinding
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Måleren tænder ikke. | Døde eller forkert installerede batterier. | Kontroller batteripolariteten, eller udskift batterierne. |
| Upræcise aflæsninger. | Low battery; incorrect function selected; damaged test leads. | Replace batteries; ensure correct function mode; inspect and replace test leads if damaged. |
| Ingen kontinuitetsbip. | Not in continuity mode; open circuit; resistance too high. | Press SELECT to enter continuity mode; check circuit for breaks; ensure resistance is below 50Ω. |
| Displayet viser "OL" (Overbelastning). | Målingen overstiger det valgte område. | Ensure the measurement is within the meter's specified range. |
9. Specifikationer
| Parameter | Værdi |
|---|---|
| Mærke | BTMETER |
| Model | BT-38B (2000 Counts) |
| Måletype | Multimeter, Voltmeter |
| AC VoltagRækkevidde | 2V ~ 600V |
| DC bindtagRækkevidde | 200mV ~ 600V |
| Modstandsområde | 200 Ohm ~ 20M Ohm |
| Kontinuitetstest | Summeren lyder, hvis modstanden er < 50Ω |
| Vise | Backlit LCD, 12mm tall digits |
| Strømkilde | 2 x AAA batterier |
| Automatisk sluk | Efter 15 minutter uden drift |
| Varens vægt | 200 gram (ca. 7.1 ounces) |
| Materiale | ABS |
| Specifikation Met | CE |
10. Garanti og support
BTMETER products are designed for reliability and performance. For warranty information, technical support, or any inquiries regarding your BT-38B Digital Pen Multimeter, please refer to the contact details provided with your purchase or visit the official BTMETER webwebsted.
BTMETER offers fast and effective 24x7 professional tech support.