Datasheet with SILDynisco MDT4X2F Pressure Sensors with SIL2
The Dynisco MDT4X2F pressure sensor series is designed for critical field applications in environments with high electrical noise levels. The sensor provides an industrial 4–20 mA two-wire output signal and enables reliable signal transmission over long distances, even when unshielded cables are used.
The series features side-mounted potentiometers for zero and span adjustment. Rezeroing can be performed locally via the zero potentiometer or remotely by shorting two pins. The flexible capillary connection between the sensing stem with diaphragm and the electronics housing improves thermal isolation and simplifies installation. MDT4X2F sensors meet Performance Level “c” according to EN ISO 13849-1 and Safety Integrity Level 2.
| Technical Specifications | |
|---|---|
| Pressure Ranges | 0–17 bar to 0–2,000 bar |
| Accuracy MDT422F | ±0.5% FSO, up to 50 bar ±1% FSO |
| Accuracy MDT462F | ±1% FSO |
| Repeatability MDT422F | ±0.1% FSO, up to 50 bar ±0.2% FSO |
| Repeatability MDT462F | ±0.2% FSO |
| Resolution | Infinite |
| Maximum Overload | 2× pressure range for 1,000 and 1,400 bar ranges |
| Burst Pressure | 6× pressure range, max. 3,000 bar |
| Wetted Material | 15-5 PH stainless steel, material no. 1.4545, DyMax® coated |
| Configuration | Four-arm Wheatstone bridge strain gauge |
| Internal Shunt Calibration | 80% of full scale ±1% |
| Output Signal | Two-wire 4–20 mA |
| Supply Voltage | 12–36 VDC |
| Zero Balance | ±1% |
| Rezero Initiation | Locally via zero potentiometer or remotely by shorting pins “D” and “F” |
| Range Calibration | 80% FSO by shorting pins “E” and “F” at the sensor or externally from the control room |
| Load Resistance | Max. 1,200 Ω at 36 VDC, max. 500 Ω at 24 VDC |
| Insulation Resistance | 1,000 MΩ at 50 VDC |
| Maximum Diaphragm Temperature | 400 °C |
| Maximum Housing Temperature | 85 °C |
| Diaphragm Zero Shift | MDT422F: < 0.2 bar / 10 °C MDT462F: < 0.4 bar / 10 °C |
| Housing Zero Shift | ±0.2% FSO / 10 °C |
| Sensitivity Shift | MDT422X: ±0.1% FS/10 °C, up to 50 bar ±0.2% FS/10 °C MDT462X: ±0.4% FS/10 °C |
| CE | Directive 2004/108/EC |
| ISO | ISO 9001:2008 production environment |
| Performance Level | PL “c” according to EN ISO 13849-1, Category 1 |
| SIL | Safety Integrity Level 2 |
