KEYSIGHT U1272A Handheld Digital Multimeter User Manual

1. Introduktion

This manual provides essential information for the safe and effective operation of the KEYSIGHT U1272A Handheld Digital Multimeter. The U1272A is a robust, 4.5-digit, water and dust resistant multimeter designed for professional use in various electrical measurement applications. It features an Organic LED display and intelligent functions to enhance productivity and safety.

2. Sikkerhedsoplysninger

ADVARSEL:

• Overhold altid lokale og nationale sikkerhedsforskrifter.
• Brug ikke multimeteret, hvis det ser beskadiget ud eller fungerer unormalt.
• Ensure test leads are in good condition and properly connected before making measurements.
• Observe all terminal ratings and maximum input values.
• Dette produkt er kun beregnet til professionel brug.

The U1272A is rated CAT IV 600V and CAT III 1000V, indicating its suitability for measurements in high-energy electrical environments. Always use appropriate personal protective equipment (PPE).

3. Produktet er slutview

The KEYSIGHT U1272A is designed for ergonomic handling and durability, featuring an IP54 rating for water and dust resistance.

Figur 3.1: Front view of the U1272A multimeter, showing the OLED display, function dial, and input terminals.

Figur 3.2: Side view of the U1272A multimeter, highlighting its ergonomic, non-slip design.

Figur 3.3: Tilbage view of the U1272A multimeter, showing the battery compartment and stand.

Nøglefunktioner:

• 30,000 counts resolution with 0.7% for ACV accuracy.
• Organic LED (OLED) display for clear readings in various lighting conditions.
• Intelligent features like Low Pass Filter (LPF) for noise elimination and Qik-V for quick AC/DC voltage determination.
• Visual alert blinks in addition to the beeper for Continuity test in noisy environments.
• IP54 certified for water and dust resistance.
• Connectivity to PC/internal memory for logging up to 10,000 readings.

4. Opsætning

4.1 Batteriinstallation

The U1272A is powered by batteries. To install or replace batteries:

1. Ensure the multimeter is turned OFF and disconnect all test leads from the terminals.
2. Locate the battery compartment cover on the back of the unit (refer to Figure 3.3).
3. Unscrew the retaining screws and carefully remove the cover.
4. Insert new batteries, observing correct polarity (+/-) as indicated inside the compartment.
5. Sæt dækslet på igen og fastgør det med skruerne.

4.2 Indledende tænding

After battery installation, turn the rotary switch to any function to power on the device. The OLED display will illuminate, and a self-test will be performed. If the display does not light up, check battery installation.

5. Betjeningsvejledning

5.1 Grundlæggende målinger

To perform basic measurements, select the desired function using the rotary switch and connect the test leads to the appropriate input terminals.

• Voltage Measurement (V~, V-): Connect the red lead to the VΩHz terminal and the black lead to the COM terminal. Select AC (V~) or DC (V-) voltage.
• Current Measurement (A, mA, µA): Connect the red lead to the appropriate current terminal (10A, 440mA, or µA) and the black lead to the COM terminal. Select the desired current range. Ensure the circuit is de-energized before connecting the multimeter in series.
• Modstandsmåling (Ω): Connect the red lead to the VΩHz terminal and the black lead to the COM terminal. Select the Ω function.
• Continuity Test (audible beep and visual alert): Connect the red lead to the VΩHz terminal and the black lead to the COM terminal. Select the continuity function. The meter will beep and visually alert for continuity.

5.2 Avancerede funktioner

• LPF (lavpasfilter): Activates a low pass filter to remove high-frequency noise and harmonics, useful for measurements on variable frequency drives (VFDs).
• Qik-V: Allows for quick determination of AC or DC voltage without manually selecting the mode.
• Datalogning: The U1272A can store up to 10,000 readings. Refer to the detailed user manual for instructions on setting up logging intervals and transferring data to a PC.

6. Vedligeholdelse

6.1 Rengøring

For at rengøre multimeteret skal du tørre huset af med enamp cloth and a mild detergent. Do not use abrasives or solvents. Ensure the device is powered off and leads are disconnected before cleaning.

6.2 Kalibrering

The U1272A is factory calibrated. For continued accuracy, periodic calibration by a qualified service center is recommended. Refer to Keysight's official support channels for calibration services.

6.3 Opbevaring

Når multimeteret ikke er i brug i længere perioder, skal batterierne fjernes for at forhindre lækage. Opbevar multimeteret et køligt og tørt sted, væk fra direkte sollys og ekstreme temperaturer.

7. Fejlfinding

For issues not listed here, or if solutions do not resolve the problem, contact Keysight customer support.

8. Specifikationer

9. Garanti og support

9.1 Garantioplysninger

KEYSIGHT products are designed for professional use and come with a standard manufacturer's warranty. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official Keysight Technologies webwebsted. Gem din købsbevis til garantikrav.

9.2 Kundesupport

For technical assistance, service, or calibration inquiries, please contact Keysight Technologies customer support. Visit www.keysight.com/us/en/support.html for contact information and resources.