Metrel MD9231 Industriel TRMS AC/DC Strømmåleramp Brugervejledning til måler

1. Introduktion

Thank you for choosing the Metrel MD9231 Industrial TRMS AC/DC Current Clamp Meter. This instrument is designed for professional use, offering a wide range of measurement capabilities for electrical parameters. It is a true RMS (TRMS) AC and DC current clamp meter capable of measuring currents up to 1000 A, as well as capacitance and frequency. Equipped with a built-in VFD feature, it accurately measures true values in varying frequency environments.

The MD9231 includes features such as peak value, data hold, MAX/MIN hold functions, auto power off, auto-ranging, and a relative zero function. Its robust industrial-grade casing and integrated flashlight make it suitable for demanding work conditions, including dimly lit areas.

Figur 1: Metrel MD9231 Industriel TRMS AC/DC Strømmåleramp Meter. This image shows the clamp meter from an angled perspective, highlighting its blue and black casing, the clamp jaw, and the display screen.

2. Sikkerhedsoplysninger

Please read and understand all safety information and operating instructions before using this instrument. Failure to follow these instructions could result in electric shock, fire, or serious injury.

• Overhold altid lokale og nationale sikkerhedsforskrifter.
• Do not use the meter if it appears damaged or if the insulation is compromised.
• Ensure the test leads are in good condition and free from cracks or damage.
• Do not exceed the maximum input limits for any function. The MD9231 is rated for CAT IV 600 V / CAT III 1000 V.
• Udvis ekstrem forsigtighed, når du arbejder med spændingsførende kredsløb.
• Hold fingrene bag fingerbeskytterne på testledningerne under målingerne.
• Udskift batterierne med det samme, når indikatoren for lavt batteri vises, for at sikre nøjagtige aflæsninger.
• Undgå at bruge måleren i våde omgivelser eller i nærheden af ​​eksplosive gasser eller støv.

3. Produktet er slutview og komponenter

Familiarize yourself with the various parts of your MD9231 clamp måler:

Figur 2: Front view of the Metrel MD9231 Clamp Meter, showing the display, rotary switch, function buttons, and input terminals.

Nøglekomponenter:

1. Clamp Kæbe: Used for non-contact current measurement. Features a 31 mm jaw opening.
2. Funktionsdrejekontakt: Selects the desired measurement function (e.g., V, A, Hz, Ohm, Capacitance).
3. LCD-skærm: Digital display with backlight, showing 3-5/6 digits and up to 6000 counts.
4. Funktionsknapper: Includes buttons for PEAK/REC, SELECT, Hz, and other special functions like Data Hold, MIN/MAX/AVG, and Relative Zero.
5. Indgangsterminaler: Til tilslutning af testledninger til volumtage, resistance, capacitance, and diode measurements.
6. Lommelygte: Integreret lys til oplysning af mørke arbejdsområder.
7. Non-Contact Voltage (NCV) Detektor: For automatic detection of electromagnetic fields.

4. Opsætning

4.1. Batteriinstallation

The Metrel MD9231 is powered by two 1.5 V AAA batteries. To install or replace batteries:

1. Sørg for, at måleren er slukket, og frakobl alle testledninger fra indgangsterminalerne.
2. Find batteridækslet på bagsiden af ​​måleren.
3. Brug en skruetrækker til at løsne skruen/skruerne, der fastgør dækslet.
4. Remove the cover and insert two new 1.5 V AAA batteries, observing the correct polarity (+/-) as indicated inside the compartment.
5. Sæt dækslet til batterirummet på igen, og spænd skruen/skruerne forsvarligt.

Always use fresh batteries of the specified type. Dispose of old batteries responsibly according to local regulations.

5. Betjeningsvejledning

5.1. Tænd/sluk

To turn the meter ON, rotate the function switch from the 'OFF' position to any desired measurement function. To turn the meter OFF, rotate the function switch back to the 'OFF' position. The meter features an auto power-off function to conserve battery life, which will activate after a period of inactivity.

5.2. Funktionsvalg

Use the rotary switch to select the desired measurement function. The available functions include:

• AC/DC Voltage (V): Til måling af voltage op til 1000 V.
• AC/DC Current (A): For measuring current up to 1000 A using the clamp kæbe.
• Modstand (Ω): For measuring resistance.
• Kontinuitet ()))): For checking circuit continuity with an audible indicator.
• Diode test (▶|): Til test af dioder.
• Capacitance (µF): For measuring capacitance.
• Frekvens (Hz): For measuring frequency.
• VFD (Variabel Frekvensdrev): For accurate measurements in VFD environments.
• NCV (Non-Contact Voltage): For detecting live conductors without physical contact.

5.3. Making Measurements

For Current Measurement (AC/DC A):

1. Rotate the function switch to the AC A or DC A position.
2. Åbn clamp kæben ved at trykke på håndtaget.
3. Omslut kun én leder med clamp kæbe. Sørg for, at kæben er helt lukket.
4. Aflæs den aktuelle værdi på LCD-displayet.

For bindtage, Resistance, Capacitance, Diode, and Frequency Measurements:

1. Rotate the function switch to the desired V, Ω, µF, or Hz position.
2. Insert the black test lead into the 'COM' terminal and the red test lead into the 'VΩHz' terminal.
3. Tilslut testproberne til det kredsløb eller den komponent, der testes.
4. Læs målingen på LCD-displayet.

5.4. Særlige funktioner

• SELECT -knap: Toggles between AC/DC modes or different sub-functions within a rotary switch position (e.g., VFD, NCV).
• PEAK/REC Button: Activates Peak Hold or Record mode (MIN/MAX/AVG).
• Data Hold: Fryser den aktuelle aflæsning på displayet.
• MIN/MAKS/GENNEMSNIT: Records the minimum, maximum, and average values over a measurement period.
• Relative Zero: Subtracts the current reading from all subsequent readings, useful for nulling out test lead resistance or comparing measurements.
• Baggrundsbelysning: Illuminates the LCD display for better visibility in low-light conditions.
• Lommelygte: Provides illumination for the work area.

6. Vedligeholdelse

6.1. Rensning

For at rengøre måleren skal du tørre huset af med enamp en klud og et mildt rengøringsmiddel. Brug ikke slibemidler eller opløsningsmidler. Sørg for, at måleren er helt tør før brug.

6.2. Udskiftning af batteri

Refer to Section 4.1 for detailed instructions on battery replacement. Always replace batteries when the low battery indicator appears on the display to maintain measurement accuracy.

6.3. Kalibrering

For optimal performance and accuracy, it is recommended to have the Metrel MD9231 calibrated periodically by qualified personnel. Refer to Metrel's official website or contact customer support for calibration services and schedules.

7. Fejlfinding

If you encounter issues with your MD9231, refer to the following common problems and solutions:

• Måleren tænder ikke:
  Check battery installation and ensure batteries are not depleted. Replace batteries if necessary. Ensure the rotary switch is not in the 'OFF' position.
• No reading or 'OL' (Overload) displayed:
  Ensure test leads are properly connected and making good contact with the circuit. Verify the selected function and range are appropriate for the measurement. If measuring current, ensure only one conductor is within the clamp kæbe.
• Unøjagtige aflæsninger:
  Check battery level. Ensure test leads are not damaged. Verify the correct function is selected. Environmental factors (e.g., strong electromagnetic fields) can affect readings.
• Displayet er svagt eller flimrende:
  Udskift batterierne.

If the problem persists after attempting these solutions, contact Metrel customer support for further assistance.

8. Specifikationer

The following table outlines the technical specifications of the Metrel MD9231 Industrial TRMS AC/DC Current Clamp Måler:

Figur 3: Detailed technical specifications for the Metrel MD9231, including measurement ranges and accuracy.

Generelle specifikationer:

• Mærke: Metrel
• Model: MD9231
• Strømkilde: Battery Powered (2 x 1.5 V AAA batteries)
• Jaw Opening & Conductor Diameter: 31 mm maks
• Dimensioner (L x B x H): 258 x 94 x 44 mm
• Vægt: 292 g
• Overvoltage Kategori: CAT IV 600 V / CAT III 1000 V
• Vise: 3-5/6 digit, 6000 counts, with backlight

Målespecifikationer:

9. Garanti og support

9.1. Garantioplysninger

Metrel products are manufactured under strict quality control standards. This product is covered by a limited warranty against defects in materials and workmanship. The specific warranty period and terms may vary by region. Please refer to the warranty card included with your product or visit the official Metrel webwebstedet for detaljerede garantioplysninger.

The warranty does not cover damage caused by misuse, unauthorized modification, accident, neglect, or improper operation.

9.2. Kundesupport

For technical assistance, service, or repair, please contact Metrel customer support. When contacting support, please have your product model number (MD9231) and purchase information ready.

Metrel D.D.
Producent af måle- og reguleringsudstyr
Ljubljanska 77, SI-1354 Horjul, Slovenien
Telefon: +386 (0)1 75 58 200
Fax: +386 (0)1 75 49 226
E-mail: metrel@metrel.si
Webwebsted: www.metrel.si