1. Informació de seguretat
Always read, understand, and follow all instructions, cautions, and warnings provided with this device before each use. Failure to observe these safety instructions can result in severe injury or death.
- No utilitzeu el mesurador si sembla danyat o si els cables de prova estan danyats.
- Always verify meter operation on a known live circuit before use.
- Adhere to the specified measurement categories: CAT III 1000V i CAT IV 600V.
- No apliqueu més del volum nominaltage, as marked on the meter, between the input terminals or between any terminal and earth ground.
- Tingueu precaució quan treballeu amb voltagper sobre de 30 V CA RMS, 42 V pic o 60 V CC. Aquests voltagsuposen un risc de xoc.
- Desconnecteu sempre l'alimentació del circuit i descarregueu totes les emissions d'alt volum.tagcondensadors abans de mesurar la resistència, la continuïtat, els díodes o la capacitància.
- Ensure the correct function and range are selected before making a measurement.
- Canvieu les piles tan bon punt aparegui l'indicador de bateria baixa per garantir lectures precises.
2. Producte acabatview
The Klein Tools MM1300 is an auto-ranging digital multimeter designed for electricians and HVAC professionals. It measures a comprehensive range of electrical parameters, including AC/DC voltage, AC/DC current, resistance, capacitance, frequency, duty cycle, and temperature. It also features diode and continuity testing capabilities.

Figura 1: Frontal view of the Klein Tools MM1300 Multimeter. The display shows '6.000 V', indicating a voltage measurement. Below the display are function buttons (RELΔ, RANGE, MAX/MIN, AUTOHOLD, SELECT) and a rotary dial for selecting measurement modes. The input jacks for test leads are located at the bottom.
Key features include a backlit display for visibility in various lighting conditions, and it comes with a Klein case, thermocouple, test leads, and batteries.
3. Configuració
3.1 Instal·lació de la bateria
The MM1300 requires two AAA batteries (included). To install or replace batteries:
- Assegureu-vos que el mesurador estigui APAGAT i desconnecteu tots els cables de prova.
- Localitzeu la tapa del compartiment de la bateria a la part posterior del mesurador.
- Descargoleu el(s) cargol(s) de subjecció i traieu la coberta.
- Insert two AAA batteries, observing correct polarity (+/-).
- Torneu a col·locar la tapa del compartiment de la bateria i fixeu-la amb el(s) cargol(s).
3.2 Connexió del cable de prova
Proper connection of test leads is crucial for accurate and safe measurements.
- Per a la majoria de volumstage, resistance, continuity, diode, capacitance, frequency, and temperature measurements, connect the black test lead to the COM jack i el cable de prova vermell al VΩHz→⊤Temp jack.
- For current measurements up to 400mA, connect the black test lead to the COM jack i el cable de prova vermell al mAmA jack.
- For current measurements up to 10A, connect the black test lead to the COM jack i el cable de prova vermell al A jack.
4. Instruccions de funcionament
4.1 Encès/Apagat
Turn the rotary dial from the OFF position to any desired measurement function to power on the meter. To power off, turn the rotary dial back to the OFF posició.
4.2 Selecció de la funció
The rotary dial selects the primary measurement function. For functions with multiple modes (e.g., AC/DC voltage, resistance/continuity/diode), press the SELECCIONA button to toggle between modes.
4.3 Funcions de mesura
- Voltage (Ṽ / V―): Turn the dial to V. Use SELECT to switch between AC (̃) and DC (―). Connect leads in parallel to the circuit.
- Current (à / A―, mà / mA―, µÃ / µA―): Turn the dial to A, mA, or µA. Use SELECT to switch between AC (̃) and DC (―). Connect leads in series with the circuit. Ensure correct input jacks are used (10A MAX FUSED or 400mA MAX FUSED).
- Resistència (Ω): Turn the dial to Ω. Disconnect power from the circuit. Connect leads across the component.
- Continuity (→⊤): Turn the dial to Ω. Press SELECT until the continuity symbol appears. Disconnect power. Connect leads across the circuit. An audible tone indicates continuity.
- Diode Test (→⊤): Turn the dial to Ω. Press SELECT until the diode symbol appears. Disconnect power. Connect leads across the diode.
- Capacitance (‖): Turn the dial to ‖. Disconnect power and discharge the capacitor. Connect leads across the capacitor.
- Freqüència (Hz) / Cicle de treball (%): Turn the dial to Hz Duty. Use SELECT to switch between Frequency and Duty Cycle. Connect leads to the signal source.
- Temperature (°F / °C): Turn the dial to Temp. Use SELECT to switch between Fahrenheit and Celsius. Insert the thermocouple into the input jacks.
4.4 Funcions especials
- RELΔ (Relative Mode): Press to store the current reading as a reference. Subsequent readings will display the difference from this reference.
- GAMMA: Press to switch between auto-ranging and manual ranging. In manual mode, press repeatedly to cycle through ranges.
- MÀXIM / MÍN: Press to capture the maximum or minimum reading during a measurement session. Press again to cycle between MAX, MIN, and normal mode.
- AUTOHOLD: Press to hold the current stable reading on the display. Press again to release.
- Backlight (☀): Press the backlight button (often combined with AUTOHOLD) to illuminate the display for better visibility in low-light conditions.
5. Manteniment
5.1 Neteja
Wipe the meter with a dry, lint-free cloth. Do not use abrasive cleaners or solvents. Ensure the meter is off and leads are disconnected before cleaning.
5.2 Substitució de la bateria
Consulteu la secció 3.1 per obtenir instruccions de substitució de les piles. Substituïu les piles immediatament quan aparegui l'indicador de pila baixa per mantenir la precisió de la mesura.
5.3 Canvi de fusibles
The MM1300 is equipped with internal fuses to protect against overcurrent in current measurement modes. If the meter fails to read current, the fuse may be blown. Fuse replacement should only be performed by qualified personnel.
- 10A MAX FUSED: For the 10A current range.
- 400mA MAX FUSED: For the mA/µA current ranges.
Always replace with fuses of the exact specified type and rating.
5.4 Emmagatzematge
When not in use for extended periods, remove the batteries to prevent leakage. Store the meter and its accessories in a cool, dry environment, away from direct sunlight and extreme temperatures.
6. Solució De Problemes
If the meter does not function correctly, review els següents problemes comuns:
- Display shows "LE.AD": This typically indicates that the test leads are connected to the current input jacks (A, mA/µA) but the rotary dial is set to a non-current function (e.g., Voltage, Resistance). Correct the lead connection or rotary dial setting.
- Display shows "0.000" or no reading:
- Ensure the meter is powered on and batteries are not low.
- Verify test leads are properly inserted and making good contact.
- Check if the correct function and range are selected for the measurement.
- In current modes, a blown fuse will result in no reading. Refer to Section 5.3 for fuse replacement.
- Per a la resistència/continuïtat, assegureu-vos que el circuit estigui desenergitzat.
- Inconsistent or erratic readings:
- Check for loose test lead connections at both the meter and the circuit.
- Assegureu-vos que les piles no estiguin baixes.
- Verify the measurement environment is stable and free from strong electromagnetic interference.
- El mesurador no s'encén: Comproveu la instal·lació de les piles i assegureu-vos que les piles siguin noves.
If issues persist after troubleshooting, contact Klein Tools customer support or a qualified service technician.
7. Especificacions
| Paràmetre | Especificació |
|---|---|
| Marca | EINES KLEIN |
| Número de model | MM1300 |
| Tipus de mesura | Multímetre |
| Volum AC / DCtage | Fins a 1000V |
| Corrent CA / CC | Fins a 10A |
| Resistència | Sí |
| Capacitat | Sí |
| Freqüència | Sí |
| Cicle de treball | Sí |
| Temperatura | Sí |
| Prova de díode | Sí |
| Prova de continuïtat | Sí |
| Font d'alimentació | 2 piles AAA (incloses) |
| Pes de l'article | 0.9 lliures (aproximadament 14.4 unces) |
| Dimensions (L x A x A) | 7.65 x 3.75 x 0.5 polzades |
| Classificació de seguretat | CAT III 1000V, CAT IV 600V |
8. Garantia i Suport
Klein Tools products are manufactured to high standards of quality and durability. For specific warranty information, please refer to the official Klein Tools weblloc web o la targeta de garantia inclosa amb el producte.
For technical support, service, or to inquire about replacement parts, please visit the official Klein Tools weblloc web o poseu-vos en contacte amb el seu departament d'atenció al client. Normalment, podeu trobar les dades de contacte a la fitxa del fabricant. weblloc o embalatge del producte.





