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 the frequency range to 30 or 50 MHz.
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.
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.
Specifications: 5790B AC Measurement Standard
| Summary Specifications |
| AC and dc voltage |
| |
|
| Best 99%, absolute specification: |
± 24 ppm (one year, 23 °C to ± 5 °C |
|
| Inputs |
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
|
| Altitude |
Operating: 3,050 meters (10,000 feet)
Non-operating: 12,200 meters (40,000 feet)
|
| Temperature |
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 |
| Dimensions |
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)
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| Maximum power requirements |
5790B: 100 VA
|
| Weight |
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 |
| 5790B/AF |
| |
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. |
