<h3>Dynisco PT46X4 Series Pressure Sensors with SIL2</h3>
<p>
The Dynisco PT46X4 Series includes robust pressure sensors for reliable melt pressure and process pressure measurements. The sensors are designed for general applications requiring simple installation, high repeatability and long-term reliability. With an industry-standard 4…20 mA output signal, 14…36 VDC input voltage and pressure ranges from 0…500 to 0…30,000 psi, the series is suitable for a wide range of machinery, plant and plastics processing applications.
</p>

<p>
The PT46X4 sensors use a four-arm bonded foil Wheatstone bridge strain gauge configuration. They achieve an accuracy of ±0.5 % FS combined error, including linearity, repeatability and hysteresis. The standard wetted parts are made of DyMax® coated 15-5 PH stainless steel. For commissioning and maintenance, zero and span can be adjusted using side-mounted potentiometers, and an internal 80 % shunt calibration function is available for signal verification.
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<p>
A key advantage of the PT46X4 Series is its safety-related rating. The sensors are self-certified based on an exida™ FMEDA analysis and meet both SIL2 and Performance Level “c” according to EN ISO 13849-1 when installed according to Category 1. This allows them to be integrated into safety-related control systems. An optional Guardian function is available, providing a separate relay output that can be used as a field-settable safety output to place machinery in a safe state.
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<div class=”table-responsive”>
<table class=”table”>
<tbody>
<tr>
<th>Type</th>
<td>Pressure sensor for melt pressure and process pressure measurements</td>
</tr>
<tr>
<th>Model</th>
<td>Dynisco PT46X4 Series</td>
</tr>
<tr>
<th>Safety rating</th>
<td>SIL2 and PL “c”</td>
</tr>
<tr>
<th>Output signal</th>
<td>4…20 mA</td>
</tr>
<tr>
<th>Input voltage</th>
<td>14…36 VDC</td>
</tr>
<tr>
<th>Pressure ranges</th>
<td>0…500 to 0…30,000 psi</td>
</tr>
<tr>
<th>Accuracy</th>
<td>±0.5 % FS combined error, including linearity, repeatability and hysteresis</td>
</tr>
<tr>
<th>Repeatability</th>
<td>±0.2 % FS</td>
</tr>
<tr>
<th>Configuration</th>
<td>Four-arm bonded foil Wheatstone bridge strain gauge</td>
</tr>
<tr>
<th>Zero and span</th>
<td>Adjustable via side-mounted potentiometers</td>
</tr>
<tr>
<th>Zeroing</th>
<td>Local zeroing via zero potentiometer or remote zeroing by shorting two pins together</td>
</tr>
<tr>
<th>Internal shunt calibration</th>
<td>80 % FS ±0.5 %</td>
</tr>
<tr>
<th>Load resistance</th>
<td>0…1,100 Ω</td>
</tr>
<tr>
<th>Over pressure</th>
<td>2 × FS or 35,000 psi, whichever is less</td>
</tr>
<tr>
<th>Insulation resistance</th>
<td>1,000 MΩ at 50 VDC</td>
</tr>
<tr>
<th>Max. diaphragm temperature</th>
<td>750 °F / 400 °C</td>
</tr>
<tr>
<th>Diaphragm zero shift</th>
<td>Typically 25 psi / 100 °F or 45 psi / 100 °C</td>
</tr>
<tr>
<th>Electronics operating temperature</th>
<td>-20…185 °F / -29…85 °C</td>
</tr>
<tr>
<th>Electronics zero shift</th>
<td>Max. ±0.05 % FS / °F or max. ±0.10 % FS / °C</td>
</tr>
<tr>
<th>Mounting torque</th>
<td>500 inch/lbs max.</td>
</tr>
<tr>
<th>Standard wetted parts</th>
<td>DyMax® coated 15-5 PH stainless steel</td>
</tr>
<tr>
<th>Process connection</th>
<td>1/2-20 UNF thread</td>
</tr>
<tr>
<th>Optional temperature measurement</th>
<td>Optional thermocouple or RTD configurations available to provide melt temperature measurement</td>
</tr>
<tr>
<th>CE</th>
<td>Directive 2004/108/EC</td>
</tr>
<tr>
<th>PL “c”</th>
<td>Meets EN ISO 13849-1 Performance Level “c” as part of a safety-related control system when installed according to Category 1</td>
</tr>
<tr>
<th>SIL2</th>
<td>Safety Integrity Level 2</td>
</tr>
<tr>
<th>FMEDA</th>
<td>3rd-party exida™ analysis and self-certification based on FMEDA analysis and internal audit</td>
</tr>
<tr>
<th>Guardian option</th>
<td>Optional relay output signal as a field-settable safety output for safe-state indication</td>
</tr>
</tbody>
</table>
</div>