1. Introducció
The CEM DT-9516 is a professional True RMS Digital Multimeter designed for safe, reliable, and accurate electrical measurements. This compact and easy-to-use instrument is ideal for identifying and resolving issues in various electrical and electronic systems. It features auto-ranging capabilities and a 6000-count display, making it suitable for both professional and hobbyist applications.
2. Informació de seguretat
Read all safety information and operating instructions before using this meter.
Aquest dispositiu compleix amb les següents normes de seguretat:
- EN61010-1 CAT IV 600V, CAT III 1000V
- 1000V input protection on all ranges
- 10A/1000V and 0.8A/1000V fuses protection on current ranges
Precaucions generals de seguretat:
- Assegureu-vos sempre que els cables de prova estiguin en bon estat i connectats correctament.
- No intenteu mesurar el voltages o corrents que superen els límits màxims especificats.
- Use caution when working with live circuits.
- Replace batteries and fuses only with the specified types and ratings.
- No feu funcionar el mesurador si sembla danyat o si la carcassa està oberta.
3. Configuració i funcionament inicial
3.1 Instal·lació de la bateria
The CEM DT-9516 requires three (3) AAA batteries for operation. These are typically included with the device.
- Locate the battery compartment cover on the rear of the multimeter.
- Utilitzeu un tornavís per obrir el compartiment de la bateria.
- Insert three AAA batteries, observing the correct polarity (+ and -) as indicated inside the compartment.
- Substituïu la tapa del compartiment de la bateria i fixeu-la amb el cargol.
Figure 1: CEM DT-9516 Multimeter with test leads, AAA batteries, and a protective carrying case.
3.2 Connexió dels cables de prova
Before taking any measurements, ensure the test leads are correctly connected to the multimeter.
- Connecteu el vermell cable de prova per a la VΩHz%CAP input jack (positive input).
- Connecteu el negre cable de prova per a la COM input jack (common/negative input).
- For current measurements (mA, µA), connect the red lead to the mAµA presa d'entrada.
- For high current measurements (up to 10A), connect the red lead to the 10A presa d'entrada.
Figura 2: Detallada view of the multimeter's input jacks and function switch, indicating where to connect test leads for various measurements.
4. Instruccions de funcionament
The DT-9516 features an intuitive interface with a large LCD display and a rotary function switch for selecting measurement modes.
Figura 3: Mésview of the CEM DT-9516 Multimeter's controls and display elements.
4.1 Function Switch and Auto Ranging
Turn the rotary switch to the desired measurement function. The DT-9516 is an auto-ranging multimeter, meaning it automatically selects the appropriate measurement range for the input signal, simplifying operation.
Figure 4: The multimeter's auto-ranging feature allows for intuitive operation without manual range selection.
4.2 Funcions de mesura
The DT-9516 offers a wide range of measurement capabilities:
- Voltage (AC/DC): Select the 'V' position on the rotary switch. The meter will automatically detect AC or DC voltage.
- Corrent (CA/CC): Select the 'mAµA' or '10A' position. Ensure test leads are connected to the correct current input jacks.
- Resistència (Ω): Select the 'Ω' position.
- Capacitància (CAP): Select the 'CAP' position.
- Frequency (Hz%): Select the 'Hz%' position.
- Prova de díode: Select the diode symbol position.
- Continuïtat: Select the continuity symbol position. An audible tone indicates continuity.
- Temperatura: Select the temperature symbol position. This function typically requires a K-type thermocouple (sold separately).
Figure 5: The multimeter's multi-functional testing capabilities are clearly illustrated.
Figure 6: The 6000-count display provides higher resolution and more accurate readings.
4.3 Funcions especials
- Funció VFD: The Variable Frequency Drive (VFD) function utilizes a low-pass filter for accurate measurement of VFD signals. Select the 'VFD' position on the rotary switch.
- Retenció de dades (HOLD): Premeu el botó MANTENIM button to freeze the current measurement on the display. Press again to release. This is useful for recording readings in difficult-to-view ubicacions.
- MÀXIM / MÍN: Premeu el botó MAX/MIN button to record the maximum and minimum values during a measurement session.
- REL (Mesura Relativa): Premeu el botó REL button to store the current reading as a reference value. Subsequent measurements will be displayed as a deviation from this reference.
- Il·luminació de fons: Press the backlight button (often integrated with another function or a dedicated button) to illuminate the display for better visibility in low-light conditions.
Figure 7: The VFD function enables precise measurement of variable frequency drive signals.
Figure 8: The Data Hold function allows users to lock and record measurement values with a single button press.
Figure 9: The high-definition LCD display ensures clear digital readings at a glance, even with multiple indicators.
5. Manteniment
5.1 Neteja
Netegeu el cas amb l'anunciamp drap i detergent suau. No utilitzeu abrasius ni dissolvents. Mantingueu els terminals d'entrada lliures de brutícia i humitat.
5.2 Substitució de la bateria
When the battery indicator appears on the display, replace the batteries as described in Section 3.1. Always use three new AAA batteries.
5.3 Canvi de fusibles
If the current measurement functions cease to operate, the internal fuses may need replacement. Refer to the safety section for fuse specifications (10A/1000V and 0.8A/1000V). Fuse replacement should only be performed by qualified personnel.
Warning: Disconnect all test leads from the meter and any circuit before opening the case for battery or fuse replacement.
6. Solució De Problemes
- Sense pantalla: Comproveu la instal·lació i la càrrega de la bateria. Canvieu les bateries si cal.
- Lectures incorrectes:
- Ensure test leads are properly connected to the correct input jacks for the selected function.
- Verify the function switch is set to the appropriate measurement type.
- Comproveu si hi ha cables de prova danyats.
- For current measurements, check the internal fuses.
- "OL" or "OVERLOAD" on Display: The measured value exceeds the selected range. The auto-ranging feature should typically prevent this, but if it occurs, ensure the meter is capable of measuring the expected value.
7. Especificacions
| Característica | Detall |
|---|---|
| Número de model | DT-9516 |
| Mostra | LCD de 6000 recomptes |
| Categoria de seguretat | CAT IV 600V, CAT III 1000V |
| Voltage Mesura | AC/DC fins a 1000V |
| Mesura actual | AC/DC up to 10A |
| Mesura de Resistència | Fins a 60 MΩ |
| Mesura de la capacitat | Up to 6000µF |
| Mesura de freqüència | Fins a 10 MHz |
| Prova de díode | Sí |
| Prova de continuïtat | Yes (with audible indicator) |
| Característiques especials | True RMS, Auto Ranging, VFD Function, Data Hold, MAX/MIN, Relative Measurement, Backlight |
| Bateries | 3 x AAA (incloses) |
| Dimensions del paquet | 20.6 x 13 x 7.9 cm |
| Pes | 654 g |
| Fabricant | Shenzhen Everbest Machinery Industry Co.,Ltd. |
| UPC | 887327951600 |
8. Garantia i Suport
CEM products are manufactured to high-quality standards. For specific warranty terms and conditions, please refer to the warranty card included with your product or contact CEM customer support.
For technical assistance, troubleshooting, or service inquiries, please contact your local CEM distributor or visit the official CEM weblloc de recursos de suport.
