Hioki DT4252 Standard Digitalt Multimeter Brugermanual

1. Introduktion

This manual provides essential instructions for the safe and effective use of the Hioki DT4252 Standard Digital Multimeter. The DT4252 is a True-RMS digital multimeter designed for general electrical applications, offering measurements for AC/DC voltage, AC/DC current, resistance, continuity, diode, capacitance, and frequency. Please read this manual thoroughly before operation to ensure correct usage and to prevent accidents.

2. Sikkerhedsoplysninger

Always observe the following safety precautions to prevent electric shock, injury, or damage to the instrument.

• Brug ikke multimeteret, hvis det ser beskadiget ud, eller hvis testledningerne er beskadigede.
• Verify the function switch is in the correct position for the measurement being performed.
• Do not exceed the maximum input ratings for any function. The DT4252 is rated for 1000V AC/DC and 10A direct input.
• Vær forsigtig, når du arbejder med voltagover 30V AC RMS, 42V peak eller 60V DC. Disse voluminertages udgør en stødfare.
• Always connect the common (COM) test lead first and disconnect it last.
• Ensure your hands are dry and use insulated gloves when necessary.
• Replace batteries promptly when the low battery indicator appears.
• Do not attempt to measure current on a circuit with voltage present without proper precautions and understanding of the circuit.

3. Pakkens indhold

Når du åbner pakken, skal du kontrollere, at alle varer er til stede og ubeskadigede:

• Hioki DT4252 Digital Multimeter
• Testledningssæt
• AAA batterier (x4)
• Instruktionsmanual (dette dokument)

4. Produktet er slutview

The Hioki DT4252 features a robust design with a clear digital display and intuitive controls.

Figur 1: Forside view of the Hioki DT4252 Digital Multimeter with its integrated kickstand extended, showing the display and rotary switch.

Figur 2: Forside view of the Hioki DT4252 Digital Multimeter, illustrating the display, function buttons, rotary switch, and input terminals.

4.1. Display

The large LCD shows measurement values, units, and various indicators such as battery status, range, and function modes.

4.2. Funktionsknapper

• HOLDE: Fryser den aktuelle displayaflæsning. Tryk igen for at slippe.
• MAX / MIN: Records the maximum and minimum values during a measurement. Press to cycle through MAX, MIN, and current reading.
• FILTER: Activates a low-pass filter for stable readings in noisy environments.
• RÆKKEVIDDE: Manually selects the measurement range. Press and hold to return to auto-ranging.
• REL (Relative): Measures the difference between the current reading and a stored reference value.
• Baggrundslys knap: Aktiverer displayets baggrundsbelysning for forbedret synlighed under dårlige lysforhold.

4.3. Drejekontakt

Used to select the desired measurement function (e.g., V~, V-, A~, A-, Ω, Continuity, Diode, Capacitance, Frequency).

4.4. Indgangsterminaler

• COM: Common terminal for the black test lead.
• V Ω •))) →|← •F Hz: Input terminal for red test lead for voltage, resistance, continuity, diode, capacitance, and frequency measurements.
• A: Input terminal for red test lead for current measurements up to 10A.

5. Opsætning

5.1. Batteriinstallation

1. Sørg for, at multimeteret er slukket.
2. Find batteridækslet på bagsiden af ​​enheden.
3. Brug en skruetrækker til at løsne skruen/skruerne, der fastgør dækslet.
4. Remove the cover and insert four (4) AAA batteries, observing correct polarity (+/-).
5. Replace the cover and secure it with the screw(s).

5.2. Tilslutning af testledninger

Insert the test leads into the appropriate input terminals:

• Always connect the black test lead to the KOM terminal.
• For bdtage, resistance, continuity, diode, capacitance, and frequency measurements, connect the red test lead to the V Ω •))) →|← •F Hz terminal.
• For current measurements (up to 10A), connect the red test lead to the A terminal.

6. Betjeningsvejledning

Before making any measurement, ensure the test leads are correctly connected and the rotary switch is set to the appropriate function.

6.1. Måling af AC/DC-volumentage (V~ / V-)

1. Indstil drejekontakten til V~ for AC voltage eller V- for DC voltage.
2. Tilslut testledningerne parallelt på tværs af det kredsløb eller den komponent, der skal måles.
3. Læs bindtage -værdi på displayet.

6.2. Måling af AC/DC-strøm (A~ / A-)

WARNING: Never connect the multimeter in parallel across a voltage source when in current measurement mode. This can cause a short circuit and damage the meter or circuit.

1. Turn OFF power to the circuit.
2. Indstil drejekontakten til A~ for vekselstrøm eller A- for jævnstrøm.
3. Connect the multimeter in series with the circuit, breaking the circuit to insert the meter.
4. Sæt strøm til kredsløbet.
5. Aflæs den aktuelle værdi på displayet.

6.3. Measuring Resistance (Ω)

1. Sørg for, at kredsløbet eller komponenten er spændingsløs.
2. Indstil drejekontakten til Ω.
3. Tilslut testledningerne på tværs af komponenten.
4. Læs modstandsværdien på displayet.

6.4. Continuity Test (•))) )

1. Sørg for, at kredsløbet eller komponenten er spændingsløs.
2. Indstil drejekontakten til •))).
3. Tilslut testledningerne på tværs af komponenten eller ledningen.
4. An audible beep indicates continuity (low resistance). The display will show the resistance value.

6.5. Diode Test (→|←)

1. Ensure the diode is de-energized and isolated from the circuit.
2. Indstil drejekontakten til →|←.
3. Connect the red lead to the anode and the black lead to the cathode. A forward voltage drop (e.g., 0.5V to 0.8V) should be displayed.
4. Reverse the leads. The display should show OL (Open Loop) for a good diode.

6.6. Capacitance Measurement (F)

1. Sørg for, at kondensatoren er helt afladet før test.
2. Indstil drejekontakten til F.
3. Tilslut testledningerne på tværs af kondensatorterminalerne.
4. Læs kapacitansværdien på displayet.

6.7. Frekvensmåling (Hz)

1. Indstil drejekontakten til Hz.
2. Tilslut testledningerne på tværs af signalkilden.
3. Aflæs frekvensværdien på displayet.

7. Vedligeholdelse

7.1. Rensning

Tør sagen af ​​med annonceamp klud og mildt rengøringsmiddel. Brug ikke slibemidler eller opløsningsmidler. Sørg for, at måleren er helt tør før brug.

7.2. Udskiftning af batteri

When the low battery indicator appears on the display, replace the batteries as described in Section 5.1. Use only new AAA batteries of the same type.

7.3. Udskiftning af sikring

If the current measurement function fails, the fuse may need replacement. The DT4252 uses a 10A fused input. Refer to the detailed service manual for fuse replacement procedures, or contact qualified service personnel.

8. Fejlfinding

If the multimeter does not operate correctly, check the following common issues:

• Ingen visning: Check battery installation and charge level. Replace batteries if necessary.
• Forkerte aflæsninger: Ensure the function switch is set correctly for the measurement type. Verify test lead connections. Check for damaged test leads.
• "OL" (Overbelastning)-visning: The measured value exceeds the selected range. Switch to a higher range or ensure the input is within the meter's specifications.
• Strømmåling virker ikke: Check the 10A fuse. If blown, it needs replacement by qualified personnel.

For persistent issues, contact Hioki customer support.

9. Specifikationer

10. Garanti og support

The Hioki DT4252 Digital Multimeter is covered by a manufacturer's warranty against defects in materials and workmanship. For specific warranty terms, duration, and to obtain technical support or service, please refer to the warranty card included with your product or visit the official Hioki webwebstedet. Behold din købskvittering som købsbevis.