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34461A

Keysight Technologies (Agilent HP)Multimeters

The Keysight 34461A is a 6.5 digit Truevolt digital multimeter (DMM), designed as the direct replacement for the industry-standard Keysight/Agilent 34401A. It offers enhanced usability with a 4.3-inch color graphical display, built-in trend/histogram charts, and advanced Truevolt technology for superior measurement accuracy and reduced noise.

Current MeasurementElectrical TestingResistance MeasurementVoltage Measurement

Specifications

General

ParameterValue
InterfacesUSB 2.0 (Host and Device), LAN (LXI Core), GPIB (optional)
Display4.3-inch color TFT-LCD, 480 x 272 resolution, supporting trend charts, histograms, and bar charts
Real-Time ClockYes (with battery backup)
SCPI Version1999.0

Physical

ParameterValue
Power Supply100 V / 120 V / 220 V / 240 V (±10%), 50 Hz / 60 Hz / 400 Hz (±10%), 55 VA maximum
Operating Temperature0 °C to 55 °C
Dimensions (W×H×D)261.2 mm × 103.8 mm × 303.2 mm (with bumpers and handle)
Weight3.76 kg

Measurement Specifications

ParameterValue
Display Resolution6.5 digits
DC Voltage Ranges100 mV, 1 V, 10 V, 100 V, 1000 V
DC Voltage Best 1-Year Accuracy0.0035% of reading + 0.0005% of range
AC Voltage Ranges100 mV, 1 V, 10 V, 100 V, 750 V
AC Voltage Frequency Range3 Hz to 300 kHz
AC Voltage Best 1-Year Accuracy0.06% of reading + 0.03% of range (at 10 Hz - 20 kHz)
DC Current Ranges100 µA, 1 mA, 10 mA, 100 mA, 1 A, 3 A, 10 A
DC Current Best 1-Year Accuracy0.05% of reading + 0.005% of range (on 100 mA range)
AC Current Ranges100 µA, 1 mA, 10 mA, 100 mA, 1 A, 3 A, 10 A
AC Current Frequency Range3 Hz to 10 kHz
AC Current Best 1-Year Accuracy0.10% of reading + 0.04% of range
Resistance Ranges100 Ω, 1 kΩ, 10 kΩ, 100 kΩ, 1 MΩ, 10 MΩ, 100 MΩ (2-wire and 4-wire)
Resistance Best 1-Year Accuracy0.010% of reading + 0.001% of range (on 10 kΩ range)
Diode Test Threshold / Source Current5.0 V maximum test voltage, 1 mA source current
Continuity Threshold1 Ω to 1000 Ω (adjustable)
Frequency and Period Range3 Hz to 300 kHz (Period: 333 ms to 3.3 µs)
Frequency Best 1-Year Accuracy0.01% of reading
Supported Temperature SensorsRTD (PT100), Thermistor (2.2 kΩ, 5 kΩ, 10 kΩ)

System Performance & Digitizing

ParameterValue
Maximum Reading Rate (to Internal Memory)1,000 readings/s
Maximum Reading Rate (to Bus)1,000 readings/s
Internal Memory Capacity (Readings)10,000 readings
Aperture / Integration Time Range0.02 NPLC, 0.2 NPLC, 1 NPLC, 10 NPLC, 100 NPLC

Input & Noise Characteristics

ParameterValue
DC Voltage Input Impedance10 MΩ ±1% (all ranges) or > 10 GΩ (100 mV, 1 V, 10 V ranges)
Input Bias Current< 30 pA at 25 °C
Maximum Input Voltage (Terminal to Terminal)1000 V (HI to LO)
Maximum Input Voltage (Terminal to Earth)500 Vpk (LO to Earth)
DC Common Mode Rejection Ratio (CMRR)140 dB (for 1 kΩ LO lead unbalance)
AC Common Mode Rejection Ratio (CMRR)70 dB (at 50/60 Hz, for 1 kΩ LO lead unbalance)
Normal Mode Rejection Ratio (NMRR)60 dB (at 50/60 Hz, for 1 NPLC or greater)
AC Crest Factor Limit3:1 at full scale

Triggering & Mathematical Functions

ParameterValue
Trigger SourcesInternal, External, Manual, Software
Trigger Delay Range0 s to 3600 s
Pre-trigger CapabilityUp to 10,000 readings
External Trigger Input Level / Pulse WidthTTL-compatible, minimum 1 µs pulse width
Voltmeter Complete (VM Comp) OutputTTL-compatible, ≈ 2 µs pulse width
Math FunctionsNull, Min/Max/Average, Standard Deviation, Limit Test, dB, dBm

Connectivity & System Interfaces

ParameterValue
USB Port (Host/Device)USB 2.0 (Host on front panel, Device on rear panel)
LAN Interface / LXI ComplianceLAN (10/100 Base-T, LXI Core 2011 compliant)
GPIB Interface (Standard/Optional)Optional (via option 3446GPBU)
Command Emulation ModesKeysight 34401A SCPI
SCPI Language CompatibilityStandard SCPI-1999

Physical & Environmental Specifications

ParameterValue
Storage Temperature Range-40 °C to 70 °C
Operating Humidity LimitUp to 80% RH at 40 °C (non-condensing)
Maximum Operating Altitude3,000 meters (approx. 10,000 feet)
Warm-up Time60 minutes

Compliance & Safety

ParameterValue
Standard Calibration Interval1 year
Electromagnetic Compatibility (EMC) StandardsEN 61326-1, IEC 61326-1, ICES-001
Standard Warranty Period3 years

Measurement Ranges

ParameterValue
Capacitance Ranges1 nF, 10 nF, 100 nF, 1 µF, 10 µF, 100 µF
Maximum Diode Test Voltage5 V
Continuity Test Current1 mA

Measurement Accuracy

ParameterValue
Capacitance Best 1-Year Accuracy1.0% of reading + 0.3% of range

AC Measurement

ParameterValue
AC Low-Frequency Filter Settings3 Hz, 20 Hz, 200 Hz

Measurement Options

ParameterValue
Resistance Measurement Configuration2-wire and 4-wire

Power

ParameterValue
AC Line Frequency Range45 Hz to 66 Hz, 360 Hz to 440 Hz
Power Consumption75 VA maximum

Safety & Compliance

ParameterValue
Safety Category RatingCAT I 1000 V, CAT II 300 V
Pollution DegreePollution Degree 2

Math & Analytics

ParameterValue
Statistical CalculationsMin, Max, Average, Standard Deviation, Peak-to-Peak
Limits TestingPass/Fail limits with high/low visual indicators

Display Options

ParameterValue
Histogram Display ModeSupported
Trend Chart Display ModeSupported

Display

ParameterValue
Display Size4.3 in (109 mm) diagonal
Display Resolution (Pixels)480 × 272

Environmental

ParameterValue
Acoustic Noise35 dBA (nominal)
Vibration & ShockMIL-PRF-28800F, Class 3

Storage

ParameterValue
Instrument State StorageSupports saving any number of states to internal flash or external USB drive

Triggering

ParameterValue
Voltmeter Complete Pulse Width≈ 2 µs
External Trigger Latency< 15 µs
External Trigger Jitter< 1 µs

Performance

ParameterValue
Max Reading Rate to USB Flash Drive80 readings/s
4-Wire Resistance Max Lead Resistance10% of range per lead (100 Ω, 1 kΩ ranges), 1 kΩ per lead (other ranges)

Technology

Truevolt technology

Applications

Precision DC/AC voltage and current measurements, 2/4-wire resistance, temperature, and frequency testing