The Agilent/Keysight U1253A is a 4.5-digit handheld digital multimeter featuring a unique Organic Light-Emitting Diode (OLED) display that offers exceptional clarity with a 160° viewing angle and a 2000:1 contrast ratio, making readings easy to discern even in challenging lighting conditions. This True RMS multimeter is designed for robust field use and electronics troubleshooting, offering a comprehensive suite of measurement capabilities.
### Technical Specifications
**Display:**
* Type: Organic Light-Emitting Diode (OLED)
* Resolution: 4.5 digits, 50,000 counts (full-scale dual display)
* Viewing Angle: 160°
* Contrast Ratio: 2000:1
**Electrical Measurements:**
* **DC Voltage:**
* Ranges: 50.000 mV to 1000.0 V
* Basic Accuracy: 0.025%
* **AC Voltage (True RMS):**
* Ranges: 50.000 mV to 1000.0 V
* Accuracy: Varies by frequency band (e.g., 1.5+60 to 0.4+40 for 20 Hz to 1 kHz)
* AC+DC Measurement capability
* **DC Current:**
* Ranges: 500.00 µA to 5.000 A (up to 10 A continuously)
* Accuracy: Varies by range (e.g., 1.1+25 for 500 µA range)
* **AC Current (True RMS):**
* Ranges: 500.00 µA to 5.000 A (up to 10 A continuously)
* Accuracy: Varies by range and frequency
* **Resistance:**
* Ranges: Up to 500 MΩ
* Accuracy: Varies by range. For 500.00 Ω range: 0.01 Ω resolution, 1.04 mA test current
* **Capacitance:**
* Ranges: Not explicitly detailed, but listed as a measurement function
* Accuracy: 1% (comparable to Fluke 87-V)
* **Frequency:**
* Counter Range: 20 MHz
* Counter Resolution: 0.001 Hz (up to 99.999 Hz), 0.01 Hz (up to 999.99 Hz)
* Accuracy: 0.02%+3
* Measurement capability up to 985 kHz at 1x division, up to 20 MHz at 100x division
* **Temperature:**
* Measurement capability included
* Requires thermocouple adapter and probe (not always included)
* **Diode Test:** Included
* **Continuity Test:** With beeper
* **Duty Cycle:** Measurement capability included
* **Pulse Width Modulation (PWM):** Programmable square-wave generator for stimulating electronic digital circuits
* Output: 3V square wave
* Frequency: Selectable from 0.5 Hz up to 20 MHz
* Duty Cycle: Adjustable from 0.390625% to 99.609375% in 0.390625% steps
* Rise Time: Approximately 500 ns
* **dBm/dB:** Measurement capability included
* **Conductance:** Measurement capability included
**Data Logging:**
* Internal Memory: Up to 1000 points
* PC Connectivity: Via optional U1173A USB cable
* Bundled Software: Included for PC data logging
* Manual and Automatic logging modes
* MIN/MAX/AVG/NOW recording
**Interfaces:**
* USB Connectivity: Required for PC connection (U1173A cable)
* Infrared (IR) Port: For data transfer
**Electrical Safety and Certifications:**
* Overvoltage Protection: CAT III 1000V, CAT IV 600V
* High Energy Fuse: 30 kA
* Certifications: CE, CSA
* Double Insulation
**Physical:**
* Design: Robust for field use
* Color: Originally blue, later replaced by orange models for increased visibility
* Battery: Rechargeable 7.2 V battery
**Included Accessories (Typical):**
* Silicone test leads
* Alligator clips
* Calibration Report
* Data Logging Software
* Quick Start Guide
* User’s and Service Guide (on CD)
* AC Adapter/Power Cord
**Compatibility and Support:**
* Obsolete Model: Keysight discontinued handheld test tools in blue. Last Order Date: November 30, 2011. End of Support Life: March 1, 2017.
* Replacement Model: U1253B
* MET/CAL procedures available from third-party vendors
Why Choose Aumictech for Agilent/Keysight U1253A?
At Aumictech, we specialize in supplying high-end test and measurement equipment. Whether you need precise troubleshooting capabilities, advanced data logging for in-depth analysis, or reliable performance for demanding field applications, our team ensures the Agilent/Keysight U1253A delivers maximum performance for your application.
