8972 - HIOKI DC/RMS Unit for MR8847
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Instantly measure waveforms and RMS graphs from DC to AC, isolated input Key Features • 12-bit A/D resolution • From low to high frequency, wide bandwidth RMS rectifier installed(DC, or 30 Hz to 100 kHz) • Monitor instantaneous waveforms without the need to pass through the rectifying circuit • Isolated input, up to 300 V AC/DC from the earth
Basic specifications (Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 1 year)
| Measurement functions | Number of channels: 2, for voltage measurement, DC/RMS selectable |
|---|---|
| Input connectors |
Isolated BNC connector (input impedance 1 MΩ, input capacitance 30 pF), Max. rated voltage to earth: 300 V AC, DC (with input isolated from the unit, the maximum voltage that can be applied between input channel and chassis and between input channels without damage) |
| Measurement range |
5 mV to 20 V/div, 12 ranges, full scale: 20 div, (AC voltage for possible measurement/display using the memory function: 280 V rms) Low-pass filter: 5/50/500 Hz, 5 k/100 kHz |
| Measurement resolution | 1/100 of measurement range (using 12-bit A/D conversion and when installed in 8847) |
| Highest sampling rate | 1 MS/s (simultaneous sampling across 2 channels) |
| Measurement accuracy | ±0.5 % of full scale (with filter 5 Hz, zero position accuracy included) |
| RMS measurement |
RMS amplitude accuracy: ±1 % of full scale (DC, 30 Hz to 1 kHz), ±3 % of full scale (1 kHz to 100 kHz), Response time: SLOW 5 s (rise time from 0 to 90% of full scale), MID 800 ms (rise time from 0 to 90% of full scale), FAST 100 ms (rise time from 0 to 90% of full scale), Crest factor: 2 |
| Frequency characteristics | DC to 400 kHz -3 dB, with AC coupling: 7 Hz to 400 kHz -3dB |
| Input coupling | AC/DC/GND |
| Max. allowable input | 400 V DC (the maximum voltage that can be applied across input pins without damage) |
| Dimensions and mass | 106 mm (4.17 in) W × 19.8 mm (0.78 in) H × 196.5 mm (7.74 in) D, 250 g (8.8 oz) |
| Accessories | None |
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