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5790B AC Standard
5790B AC 측정 표준은 가장 까다로운 교정 응용 분야에서 사용하도록 설계된 다용도 AC 측정/ 전달 표준입니다.
관련 문의 : 054)451-8655
E-mail 문의 : sales@inssol.co.kr

Precision ac voltage and current measurements have never been this easy

The 5790B AC Measurement Standard is a multi-purpose ac measurement and transfer standard designed for the most demanding calibration applications. It combines the accuracy you would expect from a thermal transfer standard with the ease of use of a digital multimeter. Absolute ac voltage measurement uncertainties are as low as ± 24 ppm (one year, 23 °C ± 5 °C). The 5790B is designed to meet the complete ac voltage, ac current and wideband verification requirements of the Fluke Calibration 5735A, 5720A, and 5700A Multifunction Calibrators; 5522A, 5502A, 5520A, and 5500A Multi-Product Calibrators; plus other calibrators, amplifiers like the 52120, 5725A and 5205A/5215A, and transfer standards and ac voltmeters.

The 5790B covers an alternating voltage range of 600 μV to 1000 V, and a frequency range of 10 Hz to 1 MHz. Wideband voltage options extend frequency range to 30 or 50 MHz.

The 5790B in combination with the Fluke A40B Current Shunts now allow you to make direct, absolute or relative current measurements without the need to perform any calculations.

The 5790B may be used alone as a measurement device or as a transfer standard when compared to an external dc source. In either case the normally tedious switching and calculations are performed automatically by the 5790B, and the resulting ac/dc difference is displayed directly on the easy-to-read 6.5-inch full-color capacitive touch screen display.

Summary Specifications
AC and dc voltage
Best 99%, absolute specification: ± 24 ppm (one year, 23 °C to ± 5 °C

Input 1: 600 µV to 1000 V (5% over-range)

Input 2: 600 µV to 1000 V (5% over-range)

Aux input: 250 mV to 500 mV

WB input: <7 V rms wideband

Warm-up time 30 minutes
Relative humidity

Operating: 45% to 50 °C 75% to 45 °C 95% to 30 °C

Storage: <95% non-condensing


Operating: 3,050 meters (10,000 feet)

Non-operating: 12,200 meters (40,000 feet)


Operating: 0 °C to °50 C

Calibration: 15 °C to 35 °C

Storage: -40 °C to 70 °C

Electromagnetic Compatibility (EMC)
International IEC 61326-1: Controlled Electromagnetic Environment - CISPR 11: Group 1, Class A
Korea (KCC) Class A Equipment (Industrial Broadcasting & Communication Equipment)
USA (FCC) 47 CFR 15 subpart B. This product is considered an exempt device per clause 15.103.
Surge ANSI C62.41-1980, Category A
Reliability MIL-T-2880D, paragraph 3.13.3
General Specifications

Height: 17.8 cm (7 in) standard rackmount + 1.5 cm (0.6 in)

Width: 43.2 cm (17 in)

Depth: 62 cm (24.8 in)

Maximum power requirements

5790B: 100 VA


5790B: 24 kg (53 lb)

With wideband: 24.5 kg (54 lb)

Line power

50 Hz or 60 Hz; 100 V - 120 V, 220 V - 240 V

100V, 110 V, 115 V, 120 V, 200 V, 220 V, 230 V, 240 V

Safety Complies with UL1244 and IEC 348-1976 and IEC 1010 and CSA C22.2 No. 231 and ANSI/ISA S82
Remote interfaces RS-232, IEEE-488
Confidence level 99% unless otherwise specified
  The 5790B/AF has enhanced absolute accuracy to ± 0.23 % of voltage (1 year after factory calibration, 23 °C ± 3 °C, at 95 % confidence level) at 50 MHz and 223.61 mV, using a serialized one meter cable, characterized at that point for RF power meter 0 dBm reference output measurement. In the RF power measurement mode, the accuracy is specified to the end of the serialized cable with a curve fit for the other ranges and frequencies that is a first order correction for cable loss.
Model Name Description

AC Measurement Standard


AC Measurement Standard +30 MHz Wideband Option


AC Measurement Standard _ 50 MHz Wideband Option


AC Measurement Standard + 50 MHz Wideband Option Calibrated with WB Cable


1 milliamp Current Shunt


10 milliamp Current Shunt


20 milliamp Current Shunt


50 milliamp Current Shunt


100 milliamp Current Shunt


200 milliamp Current Shunt


500 milliamp Current Shunt


1 amp Current Shunt


2 amp Current Shunt


5 amp Current Shunt


10 amp Current Shunt


20 amp Current Shunt


50 amp Current Shunt


100 amp Current Shunt

Accessories common to all models:

Accessory Description
5790B/5 WB Cable

Cable, 50 Ohm Wideband Cable for 50 MHz Measurements


Transit Case for 57XXA Series


5790B and 5700A/5720A Rack Mount Kit. Includes 24 in. slides that allow for side ventilation


N to 4 mm double banana connector


N Male to N Male lead