Model DI-8B32-02
Isolated 0-20mA 8B-style Amplifier
- 0mA to 20mA input range
- High Level Voltage Outputs
- 1500Vrms Transformer Isolation
- ANSI/IEEE C37.90.1 Transient Protection
- Input Protected to 30VAC Continuous
- 120dB CMR
- 70dB NMR at 60Hz
- ±0.05% Accuracy
- ±0.02% Linearity
- Low Drift with Ambient Temperature
- CSA, FM and CE Certifications Pending
- Mix and Match Modules
- View Dimensions and pinout
Description
DI-8B modules are an optimal solution for monitoring real-world process signals and providing high level signals to a data acquisition system. Each DI-8B32 module isolates, filters and amplifies a process current input signal and provides an analog voltage output.
Current to voltage conversion is accomplished internal to the module to ensure high accuracy.
Signal filtering is accomplished with a three-pole filter optimized for time and frequency response which provides 70dB of normal-mode-rejection at 60Hz.
One pole of this filter is on the field side of the isolation barrier for anti-aliasing, and the other two are on the system side.
A special input circuit on the 8B32 module provides protection against accidental connection of power-line voltages up to 30VAC.
Isolation is provided by optical coupling to suppress transmission of common mode spikes or surges. The module is powered from +5VDC, ±5%.
The modules are designed for installation in Class I, Division 2 hazardous locations and have a high level of immunity to environmental noise.
Accessories
Description
2-position analog I/O backplane, non-multiplexed. For use with DI-8B Modules. View the 8BP02 schematic or the 8BPxx schematic or download the pdf.
Description
4 channel backplane. Each module has its own analog bus. For use with DI-8B Modules. View the 8BP04 schematic or the 8BPxx schematic or download the pdf.
Description
8 channel backplane. Each module has its own analog bus. For use with DI-8B Modules. View the 8BP08 schematic or the 8BPxx schematic or download the pdf.
Description
16 channel backplane. Each module has its own analog bus. For use with DI-8B Modules. View the 8BP16 schematic or the 8BPxx schematic or download the pdf.
Description
5V DC Power Supply for use with both DI-5B and DI-8B Backplanes.
Specifications
Input Range: | 0-20mA |
Input Resistance: | Normal: <50Ω Power Off: <50Ω |
Input Protection: | Continuous: 40VAC Transient: ANSI/IEEE C37.90.1 |
CMV, Input to Output: | 1500Vrms max |
Transient, Input to Output: | ANSI/IEEE C37.90.1 |
CMR (50Hz or 60Hz): | 120dB |
NMR: | 70dB at 60Hz |
Accuracy: | ±0.05% Span (Includes nonlinearity, hysteresis and repeatability) |
Nonlinearity: | ±0.02% Span |
Stability: | Output: ±25ppm/ºC Gain: ±50ppm/ºC |
Noise: | Output, 100kHz: 250µVrms |
Bandwidth, -3dB: | 3Hz |
Response Time, 90% Span: | 150ms |
Output Range: | 0 to +5V |
Output Protection: | Transient: Continuous Short to Ground ANSI/IEEE C37.90.1 |
Power Supply Voltage: | +5VDC ±5% |
Power Supply Current: | 30mA |
Power Supply Sensitivity: | ±25ppm/% |
Mechanical Dimensions: | 1.11" × 1.65" × 0.40" (28.1mm × 41.9mm × 10.2mm) |
Operating Temperature: | -40ºC to +85ºC |
Storage Temperature: | -40ºC to +85ºC |
Relative Humidity: | 0 to 95% Noncondensing |
Articles
How To Determine Loop Load in Process Current Measurements
Learn the Importance of Isolation In Four Easy Lessons
Bandwidth and DI-8B/DI-5B Series Signal Conditioning Modules