1. Introducció
This manual provides detailed instructions for the safe and effective operation of the Meco 2250-HZ Auto Digital Clamp Meter. This device is designed for measuring various electrical parameters, including AC/DC voltage, AC current, frequency, continuity, and diode testing. Please read this manual thoroughly before use and retain it for future reference.
2. Informació de seguretat
Always observe standard safety precautions when working with electrical circuits. Failure to do so may result in injury or damage to the meter. This meter is designed with over-voltage protection up to 200V DC and AC Peak. However, exercise caution.
- No intenteu mesurar el voltages o corrents que superen els límits màxims especificats.
- Ensure the test leads are in good condition and properly connected before making measurements.
- Do not operate the meter if it appears damaged or if the battery cover is not securely closed.
- Avoid using the meter in wet environments or in the presence of explosive gases or dust.
- Always disconnect power to the circuit before connecting or disconnecting test leads, especially for current measurements.
3. Producte acabatview
The Meco 2250-HZ Auto Digital Clamp Meter features a robust design for reliable performance. Familiarize yourself with the components shown below.
Figura 1: Davant view of the Meco 2250-HZ Auto Digital Clamp Meter. This image displays the clamp jaw at the top, the LCD screen showing '1000', the function dial, and the input terminals at the bottom. The 'SELECT' and 'DATA HOLD' buttons are visible next to the display.
Components clau:
- Clamp Mandíbula: S'utilitza per a la mesura de corrent altern sense contacte.
- Pantalla LCD: 3¾ digit liquid crystal display with a maximum reading of 3999. Shows measurement values, polarity, overrange indication (OL or -OL), and low battery indication.
- Marcador de funció: Rotary switch to select measurement functions (OFF, Volts DC/AC, Hz, ACA 40A/400A/1000A).
- Botó SELECCIÓ: Used to switch between DC and AC voltage modes, or other sub-functions within a dial setting.
- DATA HOLD Button: Freezes the current reading on the display. Press again to release.
- Input Terminals (COM, VΩ): Per connectar els cables de prova per a voltage, resistance, continuity, and diode measurements.
4. Configuració
4.1 Instal·lació de la bateria
The Meco 2250-HZ Auto Digital Clamp Meter requires batteries for operation. Batteries are not included with the product. To install or replace batteries:
- Assegureu-vos que el comptador estigui apagat.
- Localitzeu el compartiment de la bateria a la part posterior del mesurador.
- Feu servir un tornavís per obrir la tapa del compartiment de la bateria.
- Insert the required batteries, observing correct polarity (+ and -).
- Substituïu la tapa del compartiment de la bateria i fixeu-la amb el cargol.
A low battery indication will appear on the display when the battery voltage is low, signaling the need for replacement.
5. Instruccions de funcionament
5.1 Funcionament general
- Turn the function dial to the desired measurement setting.
- Connect test leads to the appropriate input terminals (COM and VΩ) for voltage, resistance, continuity, or diode tests.
- For current measurements, use the clamp jaw around a single conductor.
- Premeu el botó SELECCIONA button to toggle between AC/DC modes or other sub-functions if available for the selected range.
- Premeu el botó DETENIMENT DE LES DADES per congelar la lectura actual a la pantalla. Premeu-la de nou per alliberar-la.
5.2 AC/DC Voltage Mesura
- Set the function dial to the "VOLTS" position.
- Connect the black test lead to the COM terminal and the red test lead to the VΩ terminal.
- Premeu el botó SELECCIONA button to choose between AC or DC voltage measurement. The display will indicate "AC" or "DC".
- Connecteu els cables de prova en paral·lel al circuit o component que s'està provant.
- Llegeix el voltage valor a la pantalla LCD.
5.3 Mesura de corrent altern (Clamp)
- Set the function dial to the desired AC current range (40A, 400A, or 1000A).
- Obriu el clamp mandíbula prement el gallet.
- Tanqueu només un conductor del circuit dins del clamp mandíbula. Assegureu-vos que la mandíbula estigui completament tancada.
- Llegiu el valor del corrent altern a la pantalla LCD.
5.4 Frequency (Hz) Measurement
- Set the function dial to the "Hz" position.
- Connect the black test lead to the COM terminal and the red test lead to the VΩ terminal.
- Connect the test leads in parallel to the circuit where frequency needs to be measured.
- Llegiu el valor de la freqüència en hertzs (Hz) a la pantalla LCD.
5.5 Audible Continuity Check
- Set the function dial to the continuity/diode symbol (often shared with resistance).
- Connect the black test lead to the COM terminal and the red test lead to the VΩ terminal.
- Touch the test probes across the component or circuit to be tested.
- If continuity exists (low resistance), the meter will emit an audible beep.
5.6 Prova de díodes
- Set the function dial to the continuity/diode symbol.
- Connect the black test lead to the COM terminal and the red test lead to the VΩ terminal.
- Connecteu el cable de prova vermell a l'ànode del díode i el cable de prova negre al càtode. La pantalla mostrarà el volum directe.tage gota.
- Reverse the test leads. The display should show "OL" (overload) for a good diode.
6. Manteniment
6.1 Neteja
Netegeu la c del comptadorasing amb anunciamp cloth and a mild detergent. Do not use abrasives or solvents. Keep the display clean and dry.
6.2 Substitució de la bateria
Refer to Section 4.1 for battery installation and replacement instructions. Replace batteries promptly when the low battery indicator appears to ensure accurate readings.
7. Solució De Problemes
| Problema | Causa possible | Solució |
|---|---|---|
| El mesurador no s'encén. | Piles gastades o instal·lades incorrectament. | Comproveu la polaritat de la bateria i substituïu-la si cal. |
| "OL" or "-OL" displayed. | Overrange condition; measurement exceeds meter's range. | Select a higher range or ensure the measured value is within the meter's capabilities. |
| Lectures inexactes. | Low battery, poor test lead connection, or incorrect function selection. | Replace batteries, ensure secure connections, verify function dial setting. |
| No audible beep during continuity test. | Circuit obert o alta resistència. | Verify the circuit is closed and resistance is low enough for continuity. |
8. Especificacions
| Característica | Detall |
|---|---|
| Mostra | 3¾ digit LCD, max reading 3999 |
| Polaritat | Automatic, negative polarity indication |
| Indicació de sobreabast | "OL" or "-OL" displayed |
| Ajust zero | Automàtic |
| Durada de la bateria | 200 hores típiques |
| Més del voltage Protecció | 200V DC and AC Peak |
| Audible Continuity Check | Sí |
| Prova de díode | Sí |
| Indicació de bateria baixa | Sí |
| Pes de l'article | 600 g (1.32 lliures) |
| Dimensions del producte | 21 x 13 x 6 cm |
| Material | Plàstic |
| Fabricant | Instruments Meco |
9. Garantia i Suport
For warranty information or technical support, please contact the retailer or the manufacturer, Meco Instruments, directly. Keep your purchase receipt as proof of purchase.





