The Keysight U1211A is a handheld clamp meter designed for a variety of electrical measurements, with a focus on high-current applications. It offers a 3.5-digit resolution and includes features such as True RMS AC measurements, a built-in LED flashlight, and a large clamp jaw opening suitable for thick cables. This instrument is intended for troubleshooting and general-purpose electrical testing in industrial and field environments. It is important to note that the U1211A model has been discontinued and marked as obsolete.
### Technical Specifications
* **Display:** 3.5-digit resolution.
* **Current Measurement (AC):**
* Range: 0.1 A to 1000 A.
* True RMS: Yes.
* High measurement capability up to 1000 A.
* **Current Measurement (DC):** Not specified for the U1211A model. (Note: U1212A and U1213A models include DC current measurement capabilities.)
* **Voltage Measurement (AC):**
* Range: 0.1 V to 1000 V.
* True RMS: Yes.
* **Voltage Measurement (DC):**
* Range: 0.1 V to 1000 V.
* **Resistance Measurement:** Up to 40 MΩ (for U1213A only). (Note: The U1211A includes resistance measurement, but specific range details are not consistently provided across all sources).
* **Capacitance Measurement:**
* Range: Up to 4000 µF.
* Resolution: 0.1 µF (for 400 µF range), 1 µF (for 4000 µF range).
* Accuracy: 2% + 4 (for 400 µF range), 3% + 4 (for 4000 µF range).
* Overload Protection: 1000 V RMS for circuits < 0.3 A of short circuit current.
* **Frequency Measurement:** Up to 200 kHz.
* **Diode Test:** Included.
* **Audible Continuity Test:** Included.
* **Peak Hold:** Yes, with 1 ms duration for capturing in-rush current and voltage.
* **In-rush Current Measurement:** Supported via Peak-hold function.
* **Temperature Measurement:** Not specified for the U1211A model. (Note: U1212A and U1213A models include temperature measurement functions, typically with a K-type thermocouple).
* **Ranging:** Manual and Auto-ranging supported.
* **Common Mode Rejection Ratio (CMRR):**
* ACV: > 60 dB at DC to 60 Hz.
* DCV: > 80 dB at DC, 50 Hz, and 60 Hz.
### Electrical Safety
* **Overvoltage Protection:** CAT III 1000 V and CAT IV 600 V.
### Interfaces and Connectivity
* **Bluetooth:** Capable with the optional U1177A Infrared-to-Bluetooth adapter, allowing remote monitoring and data logging on Android devices.
* **Data Hold:** Supported, with manual trigger and null mode.
* **Min/Max Recording:** Supported.
* **Null Mode:** Supported.
* **Backlight:** Orange LED backlight.
### Physical Characteristics
* **Clamp Jaw Opening:** 52 mm (2 inches).
* **Dimensions:** Small body design.
* **User Interface:** Handheld form factor with a rotary switch, function buttons, and a large backlit dual display.
* **LED Flashlight:** Built-in. [cite:0 (short description)]
### Compatibility
* **Series Compatibility:** The U1211A is part of the Keysight (formerly Agilent) U1210 Series of handheld clamp meters.
* **Accessory Compatibility:** Compatible with U1177A Infrared-to-Bluetooth adapter.
### Included Accessories
* Standard test leads with 4 mm probes.
* Soft carrying case.
* Certificate of Calibration (CoC).
* Quick Start Guide.
* Batteries (non-rechargeable 9V).
Why Choose Aumictech for the Keysight U1211A?
At Aumictech, we specialize in supplying high-end electrical testing equipment. Whether you need precise AC current measurements up to 1000A, versatile DMM functions in a single handheld unit, or robust safety ratings for demanding field applications, our team ensures the Keysight U1211A delivers maximum performance for your application.
