DatasheetDynisco EMT4XX 2 Intrinsically Safe Melt Pressure Transmitter with Integrated Thermocouple
The EMT4XX 2 series is based on Dynisco’s proven TDT technology and has been specifically developed for pressure measurement in hazardous areas. The PTB-approved two-wire amplifier converts process pressure into a proportional 4–20 mA output signal, ensuring reliable and noise-free signal transmission even over long cable distances.
An integrated Type J thermocouple allows simultaneous pressure and temperature measurement directly at the process medium. The flexible connection between the sensing stem and electronics housing improves thermal isolation and protects the electronics from excessive process heat. The series also features a flush diaphragm, integrated electronic calibration functionality and ATEX certification for use in Zone 1 and Zone 2 hazardous environments.
| Technical Specifications | |
|---|---|
| Pressure Ranges | 0–17 bar to 0–2,000 bar |
| Temperature Measurement | Integrated Type J thermocouple |
| Accuracy EMT432 2 | ±0.5% FSO (up to 50 bar ±1% FSO) |
| Accuracy EMT463 2 | ±1% FSO |
| Repeatability EMT432 2 | ±0.1% FSO (up to 50 bar ±0.2% FSO) |
| Repeatability EMT463 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 |
| Current Consumption | < 20 mA |
| Zero Adjustment | -2% to +10% of full scale |
| 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) |
| Diaphragm Zero Shift | EMT432 2: ±0.2 bar / 10 °C EMT463 2: ±0.4 bar / 10 °C |
| Sensitivity Shift | EMT432 2: ±0.1% FS/10 °C (up to 50 bar ±0.2% FS/10 °C) EMT463 2: ±0.4% FS/10 °C |
| ATEX Approval | II2G EEx ia IIC T5 up to 75 °C and II2G EEx ia IIC T1-T4 up to 80 °C |
