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| DI-5B33 Isolated True
RMS Input Modules |
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FEATURES:
• 100mV to 300V RMS Input Range
• Interfaces RMS Voltage (100mV
to 300V)
Designed For Standard Operation With
Frequencies of 45Hz to 1kHz (Extended
Range to 20kHz)
• Compatible With Standard Current
and Potential Transformers
• ±0.25% Factory Calibrated
Accuracy (Accuracy Class 0.2)
• 1500 VRMS Continuous Transformer
Based Isolation
• Input Overload Protected to
480V Max (Peak AC and DC) or 10A RMS
Continuous
• ANSI/IEEE C37.90.1-1989 Transient
Protection |
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Product Highlights
Each DI-5B33 module provides a single channel of AC input
which is converted to its True RMS dc value, filtered,
isolated, amplified, and outputs to the data acquisition
instrument as a 0-5V signal. The module provides input-to-output
isolation of up to 1000V rms for measurement convenience
and safety. DI-5B33 modules may be ordered in five different
input ranges: 100mV, 1V, 10V, 150V, and 300V RMS full
scale. The DI-5B33 covers a wide frequency range of inputs:
45 to 1000Hz at ±0.25% accuracy and 1kHz to 20kHz
at ±0.75% accuracy (accuracy figures are for the
module only).
The introduction of the DI-5B33 module brings DI-715B,
DI-720, DI-722, DI-730, and DI-500 instruments within
reach of a variety of power measurement and management
applications. These include but are not limited to multiphase
AC power voltage and current measurements at US and European
levels, DC drive and other SCR firing applications, and
other AC motor measurements that require wide voltage
and frequency ranges. Other specific examples include:
AC voltage and current measurements for power, lighting,
electromotive, and other applications; and DC drive system
monitoring, calibrating, or troubleshooting in steel,
aluminum, or paper mills.
The DI-5B33 module is designed with a completely isolated
computer side circuit which can be floated to ±50V
from power common (pin 16). This complete isolation means
that no connection is required between I/O common and
power common for proper operation of the output switch.
The input signal is processed through a pre-amplifier
on the field side of the isolation barrier. This pre-amplifier
has a gain-bandwidth product of 5Mhz and is bandwidth
limited to 10kHz. After amplification, the input signal
is chopped by a proprietary chopper circuit. Isolation
is provided by transformer coupling, again using a proprietary
technique to suppress transmission of common mode spikes
or surges. The module is powered from +5VDC, ±5%.
A special input circuit on the DI-5B33 provides protection
against accidental connection of power-line voltages up
to 480VAC.
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Models & Prices
| Part
Number |
Description |
Price |
Buy
Online |
| DI-5B33-01 |
100mV full scale input range |
£240 |
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| DI-5B33-02 |
1V full scale input range |
£240 |
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| DI-5B33-03 |
10V full scale input range |
£240 |
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| DI-5B33-04 |
150V full scale input range |
£240 |
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| DI-5B33-05 |
300V full scale input range |
£240 |
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