1. Introduction
The UNI-T UT161B is a reliable True RMS digital multimeter designed for professional use. It features a 6000-count display and is capable of measuring up to 1000V AC/DC. This device is equipped with audible and visual alarms, providing critical warnings during high voltage, current, or temperature measurements. The UT161 series, including the UT161B, is CE, UKCA, and cETLus certified, ensuring compliance with international safety standards.
Les principales caractéristiques comprennent :
- Mesure RMS vraie pour des lectures précises sur des formes d'onde non sinusoïdales.
- Data hold and backlight for convenience in various lighting conditions.
- MAX/MIN/Relative modes for advanced analysis.
- USB communication for data logging and PC connectivity.
- Comprehensive input protection.
- Diode and continuity testing.
- Vol sans contacttage (NCV) detection with audible/visual alarm.
2. Consignes de sécurité
Always adhere to safety precautions when using the multimeter to prevent electric shock or personal injury. Read all safety information carefully before operation.
- Ne pas apply more than the rated voltage, comme indiqué sur le compteur, entre les bornes ou entre n'importe quelle borne et la terre.
- Ne pas use the meter if it appears damaged or if the case is open.
- Soyez extrêmement prudent lorsque vous travaillez avec voltages au-dessus de 30 V CA RMS, 42 V crête ou 60 V CC. Ces voltagils présentent un risque d'électrocution.
- Always ensure the test leads are in good condition, without any damage to the insulation.
- Débranchez les cordons de test du circuit avant de modifier les fonctions ou les plages de mesure.
- Remplacez immédiatement la pile dès que le voyant de pile faible s'allume afin de garantir des mesures précises.
- Use the correct input terminals, function, and range for all measurements.
3. Produit terminéview
The UNI-T UT161B multimeter is designed for ease of use and durability. It features a clear LCD display, a rotary switch for function selection, and various buttons for additional features.

Figure 1 : Face avant view of the UNI-T UT161B Digital Smart Multimeter, showing the display, rotary switch, and function buttons.

Figure 2 : Retour view of the UNI-T UT161B Digital Smart Multimeter, showing the battery compartment and kickstand.
Contenu de la boîte :
- UNI-T UT161B Digital Smart Multimeter
- Test Leads (Gold plated for quick and accurate measurements)
- Câble USB
- Batteries (1 Lithium Metal battery required, included)
- Manuel en anglais
- Sac en tissu

Figure 3: The complete package contents for the UNI-T UT161B Multimeter, including the device, test leads, USB cable, and manual.
4. Installation
Installation de la batterie
- Assurez-vous que le multimètre est éteint et que les cordons de test sont déconnectés.
- Repérez le compartiment à piles à l'arrière de l'appareil.
- Dévissez le couvercle de la batterie et retirez-le.
- Insert four 1.5V (R03) batteries, observing correct polarity.
- Replacez le couvercle de la batterie et fixez-le avec la vis.
Connexion des cordons de test
Connect the red test lead to the VΩmA input jack and the black test lead to the COM input jack for most measurements. For high current measurements (up to 10A), connect the red test lead to the 10A input jack.
5. Mode d'emploi
The UT161B offers various measurement functions accessible via the rotary switch and function buttons.
General Measurement Steps:
- Tournez le commutateur rotatif sur la fonction de mesure souhaitée.
- Connect the test leads to the appropriate input jacks and to the circuit under test.
- Lisez la valeur de la mesure sur l'écran LCD.
- Use function buttons (e.g., RANGE, HOLD, REL, MAX/MIN) for additional control or data capture.
Fonctions spécifiques :
- Voltage Mesure (CA/CC) : Select V~ for AC voltage ou V- pour le volume CCtage. Le compteur peut mesurer jusqu'à 1000 V.
- Mesure du courant (CA/CC) : Select A~ for AC current or A- for DC current. Ensure test leads are connected to the correct current input jacks (mA/µA or 10A).
- Mesure de la résistance (Ω) : Select the Ω function.
- Mesure de capacité (F) : Select the F function.
- Mesure de fréquence (Hz) : Select the Hz function.
- Test de diode/continuité : Select the diode/continuity function. A buzzer will sound for continuity.
- Vol sans contacttage (NCV) : Utilisez la fonction NCV pour détecter le volume alternatiftage without direct contact. The meter will provide audible and visual indications.

Figure 4: The multimeter in use, demonstrating frequency measurement on an active circuit.
Communication USB
The UT161B supports USB communication for connecting to a PC. This allows for real-time data monitoring, logging, and analysis using compatible software.
Video 1: This video demonstrates various functions of the UNI-T UT161 series multimeters, including voltage and frequency measurement, current measurement, continuity testing with audio/visual indication, NCV function, and USB communication for data logging to a PC. It highlights the device's over-molding protection and the high resolution of the UT161E model.
6. Entretien
Nettoyage
Essuyez le boîtier avec la publicitéamp Nettoyer avec un chiffon et un détergent doux. Ne pas utiliser de produits abrasifs ni de solvants. Maintenir les bornes propres et sèches.
Remplacement de la batterie
When the low battery indicator appears on the display, replace the batteries as described in the Setup section. Always use the specified battery type (four 1.5V R03 batteries).
Remplacement du fusible
If the current measurement function fails, the fuse may need replacement. Refer to the detailed fuse replacement instructions in the complete user manual for your specific model. Ensure to use a fuse with the correct rating to maintain safety and performance.
7. Dépannage
- Aucun affichage/mise sous tension : Vérifiez l'installation des piles et assurez-vous qu'elles ne sont pas déchargées. Remplacez-les si nécessaire.
- Lectures incorrectes : Verify correct function and range selection. Ensure test leads are properly connected and not damaged. Check for low battery.
- Continuity Test Not Working: Ensure the circuit is de-energized. Check test leads for continuity.
- Défaillance de la mesure actuelle : Check if the fuse is blown. Replace with the correct type and rating if needed.
- NCV non détecté : Ensure the NCV sensor is close to the AC voltagla source.
For more complex issues, consult the full user manual or contact UNI-T customer support.
8. Spécifications
Below are the general specifications for the UNI-T UT161B Digital Smart Multimeter. For detailed accuracy and specific ranges, please refer to the complete product manual.

Figure 5: A comprehensive table outlining the specifications for the UT161B, UT161D, and UT161E models, including measurement ranges, display counts, and certifications.
| Fonctionnalité | Specification (UT161B) |
|---|---|
| Nombre d'affichage | 6000 |
| Vol ACtage (v) | 1000V |
| Vol CCtage (v) | 1000V |
| Courant AC (A) | 10A |
| Courant continu (A) | 10A |
| Résistance (Ω) | 60 MΩ |
| Capacité (F) | 60mF |
| Fréquence (Hz) | 10 MHz |
| Cycle de service (%) | 0.1% à 99.9% |
| Pouvoir | Pile 1.5 V (R03) x 4 |
| Poids net du produit | 350g |
| Taille du produit | 190 mm x 90 mm x 50 mm |
| Certifications | CE, UKCA, cETLus |
9. Garantie et assistance
Pour toute information relative à la garantie, à l'assistance technique ou aux demandes de service, veuillez consulter le site officiel de UNI-T. website or the contact information provided in your product packaging. Keep your purchase receipt as proof of purchase for warranty claims.





