Agilent/Keysight U1271A Handheld Digital Multimeter

The Agilent/Keysight U1271A is a 4.5-digit handheld digital multimeter designed for industrial environments, offering true RMS measurements and a 30,000-count display. It is built to withstand harsh conditions, featuring an IP54 rating for dust and water resistance and the capability to operate in sub-zero temperatures down to -20°C, with some models in the series supporting even lower temperatures and operation at altitudes up to 3,000 meters.

The multimeter is equipped with various intelligent features to enhance productivity and safety. These include a Low Pass Filter (LPF) for accurate Variable Frequency Drive (VFD) output measurements, a Low Impedance Mode (Z_LOW) to eliminate false readings caused by stray voltages, and a Peak Detect function capable of capturing transients as fast as 250 µs. For troubleshooting, it offers a Qik-V test to quickly identify AC or DC signal types. The display is an OLED screen with a high contrast ratio for clear readability, even in low-light conditions.

**Technical Specifications**

**General Features**
* **Display Count:** 30,000
* **Display Resolution:** 4.5 digits
* **True RMS:** Yes
* **AC Bandwidth:** 20 kHz (U1271A)
* **Overvoltage Protection:** CAT III 1000 V, CAT IV 600 V
* **Ingress Protection Rating:** IP54
* **Operating Temperature:** -20°C to 55°C
* **Altitude:** Up to 2,000 meters (Some models in series up to 3,000 meters)
* **Power Source:** Four 1.5 V AAA alkaline batteries
* **Battery Life:** 300 hours
* **Weight:** 518 grams (with batteries)
* **Dimensions:** 92 x 207 x 59 mm (W x H x D)

**Electrical Specifications**

**Voltage Measurement**
* **DC Voltage Range:** 30 mV to 1 kV
* **AC Voltage Range:** 30 mV to 1 kV
* **DC Voltage Accuracy:** ±0.05% + 2 counts
* **AC Voltage Accuracy:** ±0.7% + 20 counts
* **Low Pass Filter (LPF):** Enabled for AC voltage measurements to filter high-frequency noise and harmonics.
* **Low Impedance Mode (Z_LOW):** Nominal impedance of 2 kΩ, used to eliminate stray voltages and improve measurement safety and efficiency.
* **Qik-V Test:** Quickly identifies the measured signal type as AC or DC.

**Current Measurement**
* **DC Current Range:** Up to 10 A
* **AC Current Range:** Up to 10 A
* **DC Current Accuracy:** ±0.3% + 10 counts
* **AC Current Accuracy:** ±1.0% + 25 counts
* **Fuse Protection:**
* 300 µA to 300 mA range: 0.44 A/1000 V, 10 x 35 mm fast-acting fuse
* 3 A to 10 A range: 11 A/1000 V, 10 x 38 mm fast-acting fuse

**Resistance Measurement**
* **Resistance Range:** 100 MΩ
* **Smart Ω Functionality:** Enhances accuracy by compensating for offset and leakage current (available for ranges 30 Ω to 300 kΩ on U1272A, potentially applicable to U1271A via related series functions).
* **Continuity Test:** Detects intermittent shorts and opens as short as 1 ms, with visual and audible alerts.

**Capacitance Measurement**
* **Capacitance Range:** 0.01 µF to 10,000 µF

**Frequency Measurement**
* **Frequency Range:** Not explicitly specified for U1271A, but common in similar models within the U1270 series.

**Temperature Measurement**
* **Temperature Measurement:** Supported via K-type thermocouple and adapter (included).

**Other Measurement Functions**
* **Diode Test:** Supported.
* **Min/Max Recording:** Available.
* **Peak Hold:** Available.
* **Null/Scale Functions:** Available.
* **Manual Datalogging:** Supported.
* **PC Connectivity:** Via optional IR-to-USB cable (e.g., U1173A).

**Interfaces**

* **Connectivity:** IR-to-USB for PC data transfer (requires optional cable and software).
* **Optional Bluetooth Connectivity:** Via U1177A adapter for wireless data transfer to smartphones and tablets.

**Physical**

* **Dimensions:** 92 x 207 x 59 mm (W x H x D)
* **Weight:** 518 grams (with batteries)
* **Enclosure:** Rugged, IP54 rated for dust and water resistance.
* **Display:** OLED display with high contrast ratio for clear visibility.

**Compatibility**

* **Software:** Agilent GUI Data Logger Software for PC connectivity.
* **Accessories:** Compatible with U1173A IR-USB cable, U1177A IR-to-Bluetooth adapter.

Why Choose Aumictech for the Keysight U1271A?
At Aumictech, we specialize in supplying high-end test and measurement equipment. Whether you need reliable electrical testing, accurate industrial measurements, or robust troubleshooting tools, our team ensures the Keysight U1271A delivers maximum performance for your application.