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Temperature transmitters

Multifunctional transmitters

I.S. interfaces

Signal isolators

Displays

Communication interface

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Temperature Transmitters, I.S. Interfaces

I.S. interfaces

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<ul>  
<li> * Distributes supply voltage to the power rail</li>  
<li> * Optional connection of backup supply</li>  
<li> * Approved for installation in I.S. / Ex zone 2 / Div. 2</li>  
<li> * Optional reundant supply for the power rail</li>  
<li> * Must be installed on power rail, PR type 9400</li></ul><br />
<h3>Advanced features</h3>
<ul>  
<li> * The power control unit detects errors from any of the devices mounted on the power rail and transmits a collective alarm to the control system via the internal status relay.</li>  
<li> * Optional connection of two power supplies - a primary supply and backup supply.</li>  
<li> * Redundant supply for the power rail can be obtained by mounting two 9410 devices connected to 2 separate power supplies (e.g. PR 9420).</li></ul><br />
<h3>Technical characteristics</h3>
<ul>  
<li> * The status relay will be energised when the following three conditions are met:<br />    1.    Supply voltage is present on pins 31 and 32.<br />    2.    Backup supply voltage is present on pins 34 and 33. (If the backup supply is not in use, a jumper must be placed between pins 32 and 33 - the jumper is delivered with the device).<br />    3.    There are no error messages from the devices connected to the power rail.</li>  
<li> * When a collective alarm is activated via the power rail, the status relay in the 9410 will be de-energized (pins 11, 12 and 13).</li>  
<li> * Two green front LEDs indicate connection of supply and backup.</li>  
<li> * A red LED indicates error status.</li></ul>

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