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DI-8B31 Analog Voltage Input Modules
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Product Highlights
- Accepts Voltage Level Signals
- High Level Voltage Outputs
- 1500Vrms Transformer Isolation
- ANSI/IEEE C37.90.1 Transient Protection
- Input Protected up to 240VAC Continuous
- 120dB CMR
- 85dB 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 the DI-8B Module Selection Guide
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-8B31 module isolates, filters and amplifies a voltage input signal and provides an analog voltage output.
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 DI-8B31 modules provides protection against accidental connection of power-line voltages up to 240VAC.
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.
Want to port your data into a spreadsheet or a database?
Check out our add-on software:
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WinDaqXL This WinDaq Software data acquisition add-on allows you to port acquired data directly into a Microsoft Excel Spreadsheet in real time. 60-day Trial Version available. Also check out the DATAQ Developer Network to learn how to use our ActiveX controls with Microsoft Excel and Access. |
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WinDaq/MySQL This free WinDaq Software data acquisition add-on allows you to port acquired data directly into a MySQL database in real time. |
Ordering Information, Models, and Prices
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| Part Number | Description | Price (US) |
DATAQ Store |
| DI-8B31-01 | -1V to +1V input range. | $99 | |
| DI-8B31-02 | -5V to +5V input range. | $99 | |
| DI-8B31-03 | -10V to +10V input range. | $99 | |
| DI-8B31-07 | -20V to +20V input range. | $99 | |
| DI-8B31-09 | -40V to +40V input range. | $99 | |
| DI-8B31-12 | -60V to +60V input range. | $99 | |
| Accessories | Backplanes and Power Supplies. | N/A | Go to Accessories |
Note: Pricing outside the U.S. will be higher to account for shipping, taxes, duty, currency fluctuation, local warranty and technical support in your country.
DI-8B Signal Conditioners have typical lead times of 2 weeks ARO.
DI-8B31 Datasheet (pdf)
General DI-8B Module Datasheet (pdf)Multimedia Tutorials and DemonstrationsThese videos are relevant to compatible data acquisition systems. |
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How to Export Recorded Data to Excel
SoftwareCompatible data acquisition systems use the following software packages. Be sure to check your hardware datasheet to verify software compatibility. |
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ActiveX Controls
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