DatasheetDynisco EMT4X0 2 Intrinsically Safe Melt Pressure Transmitter
The intrinsically safe EMT4X0 2 pressure transmitter series is based on proven Dynisco MDT technology and is designed for pressure measurement in hot media. The integrated PTB-approved two-wire amplifier converts the applied process pressure into a proportional 4–20 mA output signal.
The EMT4X0 2 series provides reliable, noise-free signal transmission even over long distances and is suitable for use in hazardous areas. Key design features include a rigid stem between the diaphragm and housing, a smooth flush diaphragm and an integrated electronic calibration function.
| Technical Specifications | |
|---|---|
| Pressure Ranges | 0–17 bar to 0–2,000 bar |
| Accuracy EMT420 2 | ±0.5% FSO (up to 50 bar ±1% FSO) |
| Accuracy EMT460 2 | ±1% FSO |
| Repeatability EMT420 2 | ±0.1% FSO (up to 50 bar ±0.2% FSO) |
| Repeatability EMT460 2 | ±0.2% FSO |
| Resolution | Infinite |
| Maximum Overpressure | 2× pressure range; for 1,000 and 1,400 bar ranges max. 1,750 bar; for 2,000 bar range max. 2,450 bar |
| Burst Pressure | 6× pressure range, max. 3,000 bar |
| Wetted Material | 15-5 PH stainless steel (1.4545), DyMax™ coated |
| Sensing Element | Four-arm strain gauge bridge |
| Output Signal | 4–20 mA |
| Supply Voltage | 15–28 VDC, -15% / +0% via approved electrical equipment according to EN 50020 |
| Current Consumption | < 20 mA |
| Zero Adjustment Range | -2% to +10% of full scale, adjustable |
| Internal Calibration Point | 80% of full scale ±10% |
| Load Resistance | 750 Ω at 28 VDC, 145 Ω at 15 VDC |
| Insulation Resistance | 1,000 MΩ at 50 VDC |
| Maximum Diaphragm Temperature | 400 °C |
| Maximum Housing Temperature | 80 °C (T1–T4), 75 °C (T5) |
| ATEX Approval | II2G EEx ia IIC T5 up to 75 °C and II2G EEx ia IIC T1-T4 up to 80 °C |
