1. Pendahuluan
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. Informasi Keselamatan
PERINGATAN:
- Selalu patuhi kode keselamatan lokal dan nasional.
- Do not use the multimeter if it appears damaged or is operating abnormally.
- Pastikan kabel uji dalam kondisi baik dan terhubung dengan benar sebelum melakukan pengukuran.
- Observe all terminal ratings and maximum input values.
- Produk ini ditujukan untuk penggunaan profesional saja.
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. Produk Lebihview
The KEYSIGHT U1272A is designed for ergonomic handling and durability, featuring an IP54 rating for water and dust resistance.

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

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

Gambar 3.3: Kembali view of the U1272A multimeter, showing the battery compartment and stand.
Fitur Utama:
- 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. Pengaturan
4.1 Pemasangan Baterai
The U1272A is powered by batteries. To install or replace batteries:
- Ensure the multimeter is turned OFF and disconnect all test leads from the terminals.
- Locate the battery compartment cover on the back of the unit (refer to Figure 3.3).
- Unscrew the retaining screws and carefully remove the cover.
- Insert new batteries, observing correct polarity (+/-) as indicated inside the compartment.
- Pasang kembali penutup dan kencangkan dengan sekrup.
4.2 Penyalaan Awal
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. Petunjuk Pengoperasian
5.1 Pengukuran Dasar
To perform basic measurements, select the desired function using the rotary switch and connect the test leads to the appropriate input terminals.
- Jil.tage 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.
- Pengukuran Resistansi (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 Fitur Lanjutan
- LPF (Filter Lolos Rendah): 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.
- Pencatatan Data: 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. Pemeliharaan
6.1 Pembersihan
Untuk membersihkan multimeter, usap casingnya dengan air.amp 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 Kalibrasi
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 Penyimpanan
Saat tidak digunakan dalam waktu lama, lepaskan baterai untuk mencegah kebocoran. Simpan multimeter di tempat yang sejuk dan kering, jauhkan dari sinar matahari langsung dan suhu ekstrem.
7. Penyelesaian masalah
| Masalah | Kemungkinan Penyebab | Larutan |
|---|---|---|
| Tidak ada tampilan atau tampilan redup | Baterai lemah atau habis; Pemasangan baterai yang salah | Ganti baterai; Periksa polaritas baterai |
| Bacaan salah | Incorrect function selected; Damaged test leads; Out of calibration | Verify function setting; Inspect/replace leads; Contact service for calibration |
| Meter tidak merespons | Frozen display; Internal error | Turn off and on again; Remove and reinsert batteries; If problem persists, contact support |
For issues not listed here, or if solutions do not resolve the problem, contact Keysight customer support.
8. Spesifikasi
| Fitur | Detil |
|---|---|
| Nomor Model | U1272A |
| Menampilkan | Organic LED (OLED), 30,000 counts |
| Akurasi ACV | 0.7% |
| Peringkat Keamanan | KATEGORI IV 600V, KATEGORI III 1000V |
| Peringkat Perlindungan Ingress (IP) | IP54 (Tahan Air dan Debu) |
| Kapasitas Pencatatan Data | Hingga 10,000 bacaan |
| Sumber Daya | Bertenaga Baterai |
| Ukuran | 8.7x4.72x4.13 inci |
| Berat | 1 pon |
9. Garansi dan Dukungan
9.1 Informasi Garansi
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 websitus. Simpan bukti pembelian Anda untuk klaim garansi.
9.2 Dukungan Pelanggan
For technical assistance, service, or calibration inquiries, please contact Keysight Technologies customer support. Visit www.keysight.com/us/en/support.html untuk informasi kontak dan sumber daya.





