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330-668-1444Model DI-8B43-04
Isolated ±4V DC LVDT 8B-style Amplifier
- Interfaces to DC Linear Voltage Displacement Transducers
- ±4V Input Range
- High-Level Voltage Outputs
- 1500Vrms Isolation
- ANSI/IEEE C37.90.1 Transient Protection
- Input Protection to 240VAC Continuous
- 100dB CMR
- 1kHz Signal Bandwidth
- ±0.05% Accuracy
- ±0.02% Linearity
- Low Drift with Ambient Temperature
- CE Compliant
- UL/CUL Listing and ATEX Compliance Pending
- Mix and Match Module Types
- View Dimensions and pinout
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Description
8B modules are an optimal solution for monitoring real-world process signals and providing high-level signals to a data acquisition system. Each 8B43 module isolates, filters, and amplifies a voltage input signal and provides an analog voltage output.
The 8B43 can interface to transducers that will operate on a 10V excitation voltage and up to 30mA of excitation current.
Signal filtering is accomplished with a 5-pole filter optimized for time and frequency response which provides 100dB per decade of normal-mode rejection above 1kHz. One pole of this filter is on the field side of the isolation barrier for anti-aliasing, and the other four are on the system side.
A special input circuit on the 8B43 modules provides protection against accidental connection of power-line voltages up to 240VAC. Clamp circuits on the I/O and power terminals protect against harmful transients.
Isolation is provided by transformer 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: | ±4V |
| Input Bias Current: | ±0.05nA |
| Input Resistance: | Normal: 2MΩ (minimum) Power Off: 2MΩ (minimum) Overload: 2MΩ (minimum) |
| Input Protection: | Continuous: 240VAC (8B30-01: 120VAC) Transient: ANSI/IEEE C37.90.1 |
| Excitation Voltage: | +10V ±5mV |
| Excitation Current: | 5mA min, 30mA max |
| Excitation Load Regulation: | 15ppm/mA |
| Excitation Stability: | 50ppm/°C |
| Excitation Protection: | 120VAC |
| CMV, Input to Output: | 1500Vrms |
| Transient, Input to Output: | ANSI/IEEE C37.90.1 |
| CMR (50Hz or 60Hz): | 100dB |
| NMR (-3dB at 1kHz): | 100dB per decade above 1kHz |
| Accuracy: | ±0.05% Span (Includes nonlinearity, hysteresis and repeatability) |
| Nonlinearity: | ±0.02% Span |
| Stability: | Offset: ±25ppm/ºC Gain: ±100ppm/ºC |
| Noise: | Output, 100kHz: 500µVrms |
| Bandwidth, -3dB: | 1kHz |
| Response Time, 90% Span: | 550μs |
| Output Range: | ±5V |
| Output Protection: | Transient: Continuous Short to Ground ANSI/IEEE C37.90.1 |
| Power Supply Voltage: | +5VDC ±5% |
| Power Supply Current: | 150mA Full Exc. Load |
| Power Supply Sensitivity: | ±100ppm/% |
| 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 |
| Emissions EN61000-6-4: | Radiated, Conducted: ISM, Group 1 Class A |
| Immunity EN61000-6-2: | ISM, Group 1 RF: Performance A ±0.5% Span Error ESD,EFT: Performance B |
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