DatasheetDynisco PT46X4 Series Pressure Sensors with SIL2
The Dynisco PT46X4 Series is designed for reliable melt pressure and process pressure measurements and is particularly suitable for applications requiring simple installation, repeatable measurements and high operational safety. The sensors provide an industry-standard 4…20 mA output signal and operate with an input voltage of 14…36 VDC.
The PT46X4 sensors use a robust measuring system with a four-arm bonded foil Wheatstone bridge strain gauge. The standard wetted parts are made of DyMax® coated 15-5 PH stainless steel. The series is available for pressure ranges from 0…500 to 0…30,000 psi and achieves an accuracy of ±0.5 % FS combined error, including linearity, repeatability and hysteresis.
Zero and span can be adjusted using side-mounted potentiometers. In addition, zeroing can be performed locally via the zero potentiometer or remotely by shorting two pins together. Internal 80 % FS ±0.5 % shunt calibration supports verification of the measuring signal during operation.
The series meets important safety requirements for machinery and safety-related control systems. The PT46X4 sensors are self-certified based on an exida™ FMEDA analysis and meet Safety Integrity Level 2 as well as Performance Level “c” according to EN ISO 13849-1 when properly installed. The optional Guardian function provides a separate relay output signal that can be used as a field-settable safety output.
Dynisco PT46X4 Series
Pressure sensors with SIL2 and PL “c”
| Type | Pressure sensor for melt pressure and process pressure measurements |
|---|---|
| Model | Dynisco PT46X4 Series |
| Safety rating | SIL2 and PL “c” |
| Output signal | 4…20 mA |
| Input voltage | 14…36 VDC |
| Pressure ranges | 0…500 to 0…30,000 psi |
| Accuracy | ±0.5 % FS combined error, including linearity, repeatability and hysteresis |
| Repeatability | ±0.2 % FS |
| Configuration | Four-arm bonded foil Wheatstone bridge strain gauge |
| Zero and span | Adjustable via side-mounted potentiometers |
| Zeroing | Local zeroing via zero potentiometer or remote zeroing via shorting two pins together |
| Internal shunt calibration | 80 % FS ±0.5 % |
| Load resistance | 0…1,100 Ω |
| Over pressure | 2 × FS or 35,000 psi, whichever is less |
| Insulation resistance | 1,000 MΩ at 50 VDC |
| Max. diaphragm temperature | 750 °F / 400 °C |
| Diaphragm zero shift | Typically 25 psi / 100 °F; 45 psi / 100 °C |
| Electronics operating temperature | -20…185 °F / -29…85 °C |
| Electronics zero shift | ±0.05 % FS / °F max.; ±0.10 % FS / °C max. |
| Mounting torque | 500 inch/lbs max. |
| Standard wetted parts | DyMax® coated 15-5 PH stainless steel |
| Process connection | 1/2-20 UNF thread |
| Optional temperature measurement | Optional thermocouple or RTD configurations available to provide melt temperature measurement |
| CE | Directive 2004/108/EC |
| PL “c” | Meets EN ISO 13849-1 Performance Level “c” when installed according to Category 1 |
| SIL2 | Safety Integrity Level 2 |
| FMEDA | 3rd-party exida™ analysis and self-certification based on FMEDA analysis and internal audit |
| Guardian option | Optional relay output signal as a field-settable safety output for safe-state indication |
