DatasheetDynisco DYN-X-MA Series Pressure Sensors with SIL2
The Dynisco DYN-X-MA Series includes robust melt pressure sensors with a 4…20 mA output signal for general melt pressure measurements. The sensors are designed for applications requiring simple installation, reliable measurements and good repeatability. Thanks to the amplified output signal, the DYN-X-MA sensors are suitable for direct use with PLCs, control systems and industrial readout instruments.
The DYN-X-MA sensors offer an accuracy of ±1.0 % FSO combined error, including linearity, repeatability and hysteresis. Zero and span can be adjusted via side-mounted potentiometers. In addition, zeroing can be performed locally via the zero potentiometer or remotely by shorting two pins together. The standard wetted parts are made of DyMax® coated 15-5 PH stainless steel.
A key advantage of the DYN-X-MA Series is its safety-related rating. The sensors have been evaluated based on an exida™ FMEDA analysis and are self-certified. They meet Safety Integrity Level 2 as well as Performance Level “c” according to EN ISO 13849-1 when installed according to Category 1. Optionally, the series can be equipped with a separate relay output that can be used as an application-specific safety output to place machinery in a safe state.
| Type | Melt pressure sensor with 4…20 mA output and SIL2 / PL “c” rating |
|---|---|
| Series | Dynisco DYN-X-MA Series |
| Application | General melt pressure measurement in plastics processing, extrusion and safety-related machinery applications |
| Safety rating | SIL2 and PL “c” |
| Output signal | 4…20 mA |
| Input voltage | 14…36 VDC |
| Pressure ranges | 0…500 psi to 0…30,000 psi |
| Accuracy | ±1.0 % FSO combined error, including linearity, repeatability and hysteresis |
| Repeatability | ±0.2 % FSO |
| Configuration | Four-arm bonded foil Wheatstone bridge strain gauge |
| Load resistance | 0…1,100 Ω |
| Over pressure | 2 × FSO or 35,000 psi, whichever is less |
| Zero and span | Adjustable via side-mounted potentiometers |
| Zeroing | Local zeroing via zero potentiometer or remote zeroing by shorting two pins together |
| Internal shunt calibration | 80 % FSO ±0.5 % |
| Insulation resistance | 1,000 MΩ at 50 VDC |
| Max. diaphragm temperature | 750 °F / 400 °C |
| Diaphragm zero shift due to temperature change | Typically 25 psi / 100 °F or 45 psi / 100 °C |
| Electronics operating temperature | -20…185 °F / -29…85 °C |
| Electronics zero shift due to temperature change | ±0.05 % FS / °F max. or ±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” as part of a safety-related control system 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 |
| Key features | 4…20 mA output, adjustable zero and span, local and remote zeroing, DyMax® coated wetted parts, SIL2 and PL “c” |
