AC Characteristics

Chapter 8 Specifications

Accuracy Specifications ± ( % of reading + % of range ) [ 1 ]

							Temperature
				24 Hour [ 2 ]	90 Day	1 Year	Coefficient/°C
Function	Range [ 3 ]	Frequency		23°C ± 1°C	23°C ± 5°C	23°C ± 5°C	0°C – 18°C
							28°C – 55°C

True RMS	100.0000 mV	3 Hz – 5 Hz		1.00 + 0.03	1.00 + 0.04	1.00 + 0.04	0.100	+ 0.004
AC Voltage		5	Hz – 10 Hz	0.35 + 0.03	0.35 + 0.04	0.35 + 0.04	0.035	+ 0.004
[ 4 ]		10 Hz – 20 kHz		0.04 + 0.03	0.05 + 0.04	0.06 + 0.04	0.005	+ 0.004
		20 kHz – 50 kHz		0.10 + 0.05	0.11 + 0.05	0.12 + 0.05	0.011	+ 0.005
		50 kHz – 100 kHz		0.55 + 0.08	0.60 + 0.08	0.60 + 0.08	0.060	+ 0.008
		100 kHz – 300 kHz [6]		4.00 + 0.50	4.00 + 0.50	4.00 + 0.50	0.20	+ 0.02

	1.000000 V	3	Hz – 5 Hz	1.00 + 0.02	1.00 + 0.03	1.00 + 0.03	0.100	+ 0.003
	to	5	Hz – 10 Hz	0.35 + 0.02	0.35 + 0.03	0.35 + 0.03	0.035	+ 0.003
	750.000 V	10 Hz – 20 kHz		0.04 + 0.02	0.05 + 0.03	0.06 + 0.03	0.005	+ 0.003
		20 kHz – 50 kHz		0.10 + 0.04	0.11 + 0.05	0.12 + 0.05	0.011	+ 0.005
		50 kHz – 100 kHz [5]		0.55 + 0.08	0.60 + 0.08	0.60 + 0.08	0.060	+ 0.008
		100 kHz – 300 kHz [6]		4.00 + 0.50	4.00 + 0.50	4.00 + 0.50	0.20	+ 0.02

True RMS	1.000000 A	3	Hz – 5 Hz	1.00 + 0.04	1.00 + 0.04	1.00 + 0.04	0.100	+ 0.006
AC Current		5	Hz – 10 Hz	0.30 + 0.04	0.30 + 0.04	0.30 + 0.04	0.035	+ 0.006
[ 4 ]		10 Hz – 5 kHz		0.10 + 0.04	0.10 + 0.04	0.10 + 0.04	0.015	+ 0.006

	3.00000 A	3	Hz – 5 Hz	1.10 + 0.06	1.10 + 0.06	1.10 + 0.06	0.100	+ 0.006
		5	Hz – 10 Hz	0.35 + 0.06	0.35 + 0.06	0.35 + 0.06	0.035	+ 0.006
		10 Hz – 5 kHz		0.15 + 0.06	0.15 + 0.06	0.15 + 0.06	0.015	+ 0.006

Additional Low Frequency Errors ( % of reading )

Frequency			AC Filter
Frequency		Slow	Medium	Fast
10	Hz – 20 Hz	0	0.74	––
20	Hz – 40 Hz	0	0.22	––
40	Hz – 100 Hz	0	0.06	0.73
100 Hz – 200 Hz		0	0.01	0.22
200 Hz – 1 kHz		0	0	0.18
> 1 kHz		0	0	0

Additional Crest Factor Errors ( non-sinewave ) [ 7 ]

Crest Factor	Error ( % of reading )
1 – 2	0.05%
2 – 3	0.15%
3 – 4	0.30%
4 – 5	0.40%

Sinewave Transfer Accuracy ( typical )

Frequency	Error ( % of range )
10 Hz – 50 kHz	0.002%
50 kHz – 300 kHz	0.005%

Conditions: Sinewave input.

Within 10 minutes and ± 0.5°C.

Within ±10% of initial voltage and ±1% of initial frequency. Following a 2-hour warm-up.

Fixed range between 10% and 100% of full scale ( and <120 V ). Using 61⁄2 digit resolution.

Measurements are made using accepted metrology practices.

218

34401A specifications

Agilent Technologies 34401A is a highly reputable digital multimeter (DMM), renowned for its accuracy, versatility, and performance in a wide range of measurement applications. First introduced in the early 1990s, the 34401A has become a staple in laboratories, manufacturing environments, and educational institutions due to its robust build and comprehensive features.

One of the standout characteristics of the 34401A is its impressive accuracy, boasting a basic DC voltage accuracy of 0.0035%, making it ideal for precise measurements in electronic testing. The multimeter offers a wide range of measurement capabilities, including voltage (DC and AC), current (DC and AC), resistance, frequency, and continuity test, making it a highly versatile tool for engineers and technicians.

The 34401A utilizes a 6½-digit resolution, enabling the user to measure small changes in electrical signals with remarkable precision. With a sampling rate of up to 1000 readings per second, it can handle dynamic test requirements, providing timely results without sacrificing measurement integrity.

In terms of connectivity, the Agilent 34401A includes a GPIB (General Purpose Interface Bus) for remote operation, allowing users to automate their testing processes and integrate the multimeter easily into larger measurement systems. This feature is particularly beneficial in automated test environments, where speed and accuracy are paramount.

Additionally, the DMM incorporates advanced measurement functions, such as statistical analysis, including mean, standard deviation, and minimum/maximum readings, which provide users with valuable insights into their data. The instrument's user-friendly interface, complete with a clear digital display and intuitive controls, enhances usability and ensures that users can easily navigate its various functions.

Robust software support further extends the capabilities of the Agilent 34401A. It is compatible with a range of software tools for data logging and analysis, enabling users to efficiently document and analyze their measurements over time.

In summary, Agilent Technologies 34401A stands out in the realm of digital multimeters due to its high accuracy, extensive measurement functionalities, and user-friendly features. Whether for research and development, quality control, or educational purposes, the 34401A remains a preferred choice for professionals demanding reliable and precise measurement solutions. Its enduring legacy in the industry speaks to its performance and reliability, making it an essential tool for anyone involved in electronic testing and measurement.

Agilent Technologies 34401A manual AC Characteristics

Models: 34401A