Home Products DC/RMS UNIT 8959

DC/RMS UNIT 8959

Instantly measure waveforms and RMS graphs from DC to AC, isolated input

Discontinued

Key Features

  • 12-bit A/D resolution measurement
  • DC, 20 Hz to 100 kHz wide band true RMS rectifier
  • 2 channels input
  • Isorated input, up to 370 V AC, DC (maximum rated voltage to earth)

Model No. (Order Code)

8959 Discontinued, For the 8860-50, 8861-50
Note: This module must be used with the Memory HiCorder 8860 series. Input probes are not included. Please purchase them separately.

Basic specifications

Accuracy guaranteed: 1 year
Measurement functions Number of channels: 2, for voltage measurementl, DC/RMS selectable
Input connectors Isolated BNC connector (input impedance 1MΩ, input capacitance 30pF), Max. rated voltage to earth: 370V 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 5mV to 20V/DIV, 12 ranges, full scale: 20DIV, AC voltage for possible measurement/display using the memory function: 280V rms, low-pass filter: 5Hz/500Hz/5kHz/100kHz
Measurement resolution 1/80 of measurement range (using 12-bit A/D conversion; installed in 8860 series)
Highest sampling rate 1MS/s (simultaneous sampling in 2 channels)
Accuracy DC amplitude: ±0.4% of full scale (with filter 5Hz), zero position: ±0.1% of full scale (with filter 5Hz, after zero adjustment)
RMS measurement RMS amplitude accuracy: ±1% of full scale (DC, 20Hz to 1kHz), ±3% of full scale (1kHz to 100kHz), response time: SLOW 5s (rise time from 0 to 90% of full scale), MID 800ms (rise time from 0 to 90% of full scale), FAST 100ms (rise time from 0 to 90% of full scale), crest factor: 2
Frequency characteristics DC to 400kHz ±3dB, (with AC coupling: 7Hz to 400kHz ±3dB)
Input coupling DC, GND, AC
Max. allowable input 400V DC (the maximum voltage that can be applied across input pins without damage)
Dimensions and mass 170 (6.69in) W × 20 (0.79in) H × 148.5 (5.85in) D mm
Included accessories None
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