Manuale di istruzioni del multimetro digitale da banco Rigol DM3068 a 6 1/2 cifre

1. Introduzione

This manual provides comprehensive instructions for the safe and effective operation, maintenance, and troubleshooting of the Rigol DM3068 6 1/2 Digit Benchtop Digital Multimeter. Please read this manual thoroughly before using the instrument to ensure proper functionality and to prevent damage or injury.

2. Informazioni sulla sicurezza

Always observe the following safety precautions when operating the DM3068 multimeter:

• Non utilizzare lo strumento in un'atmosfera esplosiva o in presenza di gas o fumi infiammabili.
• Ensure the power cord is properly connected to a grounded outlet.
• Non applicare voltage or current exceeding the specified maximum input limits. Refer to the specifications section for details.
• Use only test leads and accessories supplied or recommended by Rigol.
• Before opening the instrument cover, disconnect the power cord and all test leads.
• Do not operate the instrument if it appears damaged or is not functioning correctly.
• Always connect the common (COM) test lead before connecting the live test lead. Disconnect the live test lead first.
• Be aware of the CAT I (1000V) and CAT II (300V) ratings for the input terminals.

3. Prodotto finitoview

The Rigol DM3068 is a high-performance 6 1/2 digit benchtop digital multimeter designed for precise measurements in various applications. Key features include:

• Real 6 1/2 digits resolution for high accuracy.
• Dual display capability for simultaneous AC signal measurement.
• "Any sensor" function for versatile sensor integration.
• Support for multiple temperature sensors (TC, RTD, THERM).
• Standard capacitor measurement function.
• LXI over LAN and USB connectivity for remote control and data acquisition.

3.1 Pannello frontale

The front panel features the display, function buttons, range controls, and input terminals. Refer to the image below for a visual representation.

Figura 3.1: Davanti view of the Rigol DM3068 Digital Multimeter, showing the display, control buttons, and input terminals.

• Display: Shows measurement readings, settings, and menu options.
• Pulsanti funzione: Select measurement modes (DCV, ACV, Resistance, Current, Frequency, Capacitance, Diode, Continuity, Temperature).
• Controlli di portata: Manual range selection (Rng+, Rng-) or Auto-ranging (Auto).
• Terminali di ingresso: Terminali dedicati per voltage (VΩ), current (mA, 10A), and common (COM) measurements.
• Porta host USB: Per collegare dispositivi di archiviazione USB.

3.2 Pannello posteriore

The rear panel includes the power input, communication interfaces, and other connectors. (Specific image for rear panel not available, general description provided).

• Ingresso alimentazione CA: Per collegare il cavo di alimentazione.
• Porta dispositivo USB: Per la connessione a un computer.
• Porta LAN: For network connectivity (LXI).
• Porta RS-232: Per la comunicazione seriale.

4. Impostazione

4.1 Disimballaggio e ispezione

Upon receiving your DM3068, carefully inspect the packaging for any signs of damage. Open the box and verify that all components listed in the packing list are present and undamaged. If any items are missing or damaged, contact your supplier immediately.

4.2 Collegamento di alimentazione

1. Assicurarsi che l'interruttore di alimentazione sul pannello posteriore sia in posizione OFF.
2. Connect the provided AC power cord to the power input on the rear panel of the instrument.
3. Collegare l'altra estremità del cavo di alimentazione a una presa di corrente CA dotata di messa a terra.

4.3 Accensione iniziale

After connecting the power, press the power button on the front panel. The instrument will perform a self-test and display the startup screen. Allow a few minutes for the instrument to warm up and stabilize for optimal measurement accuracy.

5. Istruzioni per l'uso

5.1 Misurazioni di base

To perform a basic measurement, select the desired function using the dedicated buttons on the front panel. Connect the test leads to the appropriate input terminals (VΩ for voltage/resistance, mA/10A for current, COM for common) and to the circuit under test.

5.1.1 Volume CCtage Misura (DCV)

1. Premere il tasto DCV pulsante.
2. Collegare il puntale rosso al VΩ terminale e il puntale nero per il COM terminale.
3. Connect the test leads across the component or circuit to measure DC voltage.

Figura 5.1: Display showing a DC Voltage measurement of 2.000,001V.

5.1.2 Volume ACtage Misurazione (ACV)

The DM3068 supports dual display for AC signal measurements, showing both voltage and frequency simultaneously.

1. Premere il tasto ACV pulsante.
2. Connect the test leads as described for DCV.
3. Il display mostrerà AC voltage and its frequency.

Figura 5.2: Display showing an AC Voltage measurement of 199.9999mV and a frequency of 1.000000kHz.

5.1.3 Misurazione della capacità

The DM3068 includes a standard capacitance measurement function.

1. Premere il tasto CAP pulsante.
2. Ensure the capacitor is discharged before connecting it to the VΩ and COM terminals.
3. Il display mostrerà il valore della capacità.

Figura 5.3: Display showing a Capacitance measurement of 1.000nF.

5.2 Temperature and Sensor Measurements

The "Any sensor" function allows for flexible integration of various sensors, including multiple types of temperature sensors.

1. Premere il tasto Sensore pulsante.
2. Use the menu to select the sensor type (e.g., TC for Thermocouple, RTD for Resistance Temperature Detector, THERM for Thermistor).
3. Connect the sensor to the appropriate input terminals as per the on-screen instructions.
4. The display will show the temperature reading.

Figura 5.4: Display showing a temperature reading of 19.05305 °C from a sensor.

Figura 5.5: Display showing the selection menu for sensor types, including TC, RTD, and THERM.

5.3 Registrazione e analisi dei dati

The DM3068 offers advanced data logging and statistical analysis features.

5.3.1 History and Trend View

The instrument can store up to 5000 readings in its history. The Trend View function allows you to visualize the development of measurements over time directly on the display.

1. Premere il tasto Storia pulsante per accedere alle letture memorizzate.
2. Navigate to the Trend View option to display a graphical representation of the data.

Figura 5.6: Display showing a Trend View of measurements over time, including Max and Min values.

5.3.2 Analisi statistica

The DM3068 can perform statistical analysis on recorded data, including histograms and various statistical parameters.

1. Accedi al Matematica or Utilità menu.
2. Select the Statistics option to view parameters like average (AVG), standard deviation (SDEV), and to display a histogram of the data.

Figura 5.7: Display showing a histogram of measurement data.

Figura 5.8: Display showing the Statistics menu with options for STA (Statistical Analysis), P/F (Pass/Fail), dBm, dB, and REL (Relative).

6. Manutenzione

6.1 Pulizia

To clean the instrument, disconnect it from all power sources and test circuits. Use a soft cloth dampened with mild detergent and water. Do not use abrasive cleaners or solvents. Ensure no moisture enters the instrument.

6.2 Sostituzione del fusibile

The DM3068 contains internal fuses for protection. If a current measurement range becomes inoperative, a fuse may need replacement. Fuse replacement should only be performed by qualified service personnel to avoid voiding the warranty or causing further damage. Note that the 200mA current input fuse is internal and not user-replaceable from the rear panel, despite any markings.

6.3 Calibrazione

For optimal accuracy, the DM3068 should be calibrated periodically by a qualified service center. Refer to Rigol's official documentation or contact support for recommended calibration intervals.

7. Risoluzione Dei Problemi

This section provides solutions to common issues encountered with the DM3068. For more detailed assistance, refer to the instrument's built-in "Online Help" function or contact Rigol technical support.

8. Specifiche

The following table outlines the general specifications for the Rigol DM3068 Digital Multimeter.

9. Garanzia e supporto

For information regarding the product warranty, technical support, or service, please refer to the official Rigol website or contact your local Rigol distributor. Ensure you have your product model number (DM3068) and serial number available when seeking support.

Rigol Technologies USA Inc. is the manufacturer.

Official Rigol Websito: www.rigolna.com