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| DI-5B36 Potentiometer
Input Modules |
Product Highlights
Each DI-5B36 potentiometer input module provides a single
channel of potentiometer input which is filtered, isolated,
amplified, and converted to a high level analog voltage
output. This voltage output is logic-switch controlled,
allowing these modules to share a common analog bus without
the requirement of external multiplexers.
The DI-5B36 module is designed with a completely isolated
computer side circuit that can be floated to ±50V
from power common (pin 16). This complete isolation means
that no connection is required between I/O common and
power common for proper operation of the output switch.
Excitation for the potentiometer is provided from the
module by two matched current sources. When using a three-wire
potentiometer, this method allows cancellation of the
effects of lead resistances. The excitation currents are
very small (less than 1.0mA) which minimizes self heating
of the potentiometer.
Signal filtering is accomplished with a six-pole filter,
which provides 95dB of normal-mode rejection at 60Hz and
90dB of rejection at 50Hz. Two poles of this filter are
on the field side of the isolation barrier, and the other
four are in the output stage.
After the initial field-side filtering, the input signal
is chopped by a proprietary chopper circuit. Isolation
is provided by transformer coupling, again using a proprietary
technique to suppress transmission of common mode spikes
or surges. The module is powered from +5VDC, ±5%.
A special input circuit on the DI-5B36 provides protection
against accidental connection of power-line voltages up
to 240VAC.
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Models & Prices
| Part
Number |
Description |
Price |
Buy
Online |
| DI-5B36-01 |
0O to 100O input range |
£205 |
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| DI-5B36-02 |
0O to 500O input range |
£205 |
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| DI-5B36-03 |
0O to 1kO input range |
£205 |
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| DI-5B36-04 |
0O to 10kO input range |
£205 |
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