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| DI-8B36 Potentiometer
Input Modules |
Product Highlights
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-8B36 module isolates,
filters and amplifies a single channel of potentiometer
input and provides an analog voltage output.
Excitation for the potentiometer is provided by using
two matched current sources. When using a 3-wire connection,
this method allows equal currents to flow through the
sensor leads, cancelling the effects of lead resistances.
The excitation currents are small (0.25mA) which minimizes
the self-heating of the potentiometer.
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-8B36 module 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.
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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Models & Prices
| Part
Number |
Description |
Price |
Buy
Online |
| DI-8B36-01 |
0O to 100O input range |
£102 |
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| DI-8B36-02 |
0O to 500O input range |
£102 |
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| DI-8B36-03 |
0O to 1kO input range |
£102 |
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| DI-8B36-04 |
0O to 10kO input range |
£102 |
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