Product Highlights

• Accepts Voltage Level Signals
• High Level Voltage Output
• 1500Vrms Transformer Isolation
• ANSI/IEEE C37.90.1 Transient Protection
• Input Protected to 240VAC Continuous
• 100dB CMR
• Up to 20kHz Signal Bandwidth
• ±0.10% Accuracy
• ±0.05% Linearity
• Low Drift with Ambient Temperature
• UL, CSA, FM and CE Certifications Pending
• Mix and Match Modules

View the DI-8B Module Selection Guide

8B modules are an optimal solution for monitoring real-world process signals and providing high level signals to a data acquisition system. Each DI-8B51 module isolates, filters, and amplifies a voltage input signal and provides an analog voltage output.

Signal filtering is accomplished with a multiple 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 remaining poles are on the system side.

A special input circuit on the DI-8B51 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 optical coupling to suppress transmission of commone 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.

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Ordering Information, Models, and Prices

Part Number	Description	Price (US)	DATAQ Store
DI-8B51-01	-1V to +1V input range.	$121	Quantity:
DI-8B51-02	-5V to +5V input range.	$121	Quantity:
DI-8B51-03	-10V to +10V input range.	$121	Quantity:
DI-8B51-07	-20V to +20V input range.	$121	Quantity:
DI-8B51-09	-40V to +40V input range.	$121	Quantity:
DI-8B51-12	-60V to +60V input range.	$121	Quantity:
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.

Note: Older DI-8B50/51 modules (modules prior to week 47 of 2007 (0747)) are not compatible with most DATAQ hardware. Contact DATAQ for more information.

Knowledge Base and Common Support Issues

The Importance of Isolation

Dimensions and Pinout

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