UK Supplier of Data Acquisition & Thermal Imaging systems, software and services


DI-8B33 AC True RMS Voltage Amplifier Series

AC True RMS voltage amplifier for the DI-4718B Data Logger

SKU DI-8B33 Series Category Tag

Call for price


DI-8B33 AC True RMS Voltage Amplifier for the DI-4718B Data Logger from DATAQ Instruments.

Product Features

  • Interfaces to RMS Voltage (0-300V) or RMS Current (0-1A)
  • Designed for Standard Operation with frequencies of 45Hz to 1000Hz (extended range to 10kHz)
  • Compatible with standard current and potential transformers
  • Industry standard output of 0 to 5VDC
  • ±0.25% factory calibrated accuracy
  • 1500Vrms transformer isolation
  • Input overload protection to 350Vrms max (peak AC and DC) or 2Arms continuous
  • Mix and Match Module Types
Input Range: 100mV to 300Vrms, 0 to 1 Arms
Input Frequency Range: Normal: 45Hz to 1KHz
Extended: 1KHz to 10KHz
Impedance: 499 KΩ ± 1
Input Protection: Continuous: 350Vrms
Transient: ANSI/IEEE C37.90.1
CMV, Input to Output: 1500Vrms max
Transient, Input to Output, Input to Power: ANSI/IEEE C37.90.1
CMR (50Hz or 60Hz): 120dB
NMR: 70dB at 60Hz
Accuracy (5-100% span):
Includes nonlinearity, hysteresis and repeatability but not source or external shunt accuracy.
At standard 60Hz factory calibration.
For 0-5% span measurements add 1.5%
accuracy error.

50/60Hz: ±0.25% Span
45Hz to 1KHz: ±0.625% Span
1KHz to 10KHz: ±1.375% Span, ±3.25% Span (-06)

Crest Factor = 1: ±0.25% Span
Crest Factor = 2: ±0.325% Span
Crest Factor = 3: ±0.475% Span
Crest Factor = 4: ±0.7% Span

Vs. Temperature: ±100ppm/°C

Response Time, 90% Span: <120ms
Output Range: 0 to +5V
Output Voltage Limit: ± 9V
Output Ripple and Noise: 0.0375% Span rms
Output Protection: Transient: Continuous Short to Ground
ANSI/IEEE C37.90.1
Power Supply Voltage: +5VDC ±5%
Power Supply Current: 30mA
Power Supply Sensitivity: ±200ppm/%
Mechanical Dimensions: 28.1mm × 41.9mm × 10.2mm
Operating Temperature: -40ºC to +85ºC
Storage Temperature: -40ºC to +85ºC
Relative Humidity: 0 to 95% Noncondensing
DI-8B33 Specifications DI-8B33 Specifications

Request further information on this product below