DatasheetDynisco TDA4XX Series
The Dynisco TDA4XX Series includes pressure transmitters with integrated temperature measurement for combined process pressure and media temperature monitoring at a single measuring point. The transmitters are based on the proven MDA series and provide a sealed, liquid-filled pressure transmission system with an output signal proportional to the process pressure. The pressure applied by the medium is transmitted through the separating diaphragm and the mercury-filled capillary to the measuring diaphragm.
The deformation of the diaphragm changes the resistance values of the applied strain gauges. With the applied supply voltage, this generates a signal proportional to the process pressure. The integrated thermocouple enables simultaneous temperature measurement directly at the medium. This makes the series particularly suitable for applications where pressure and temperature must be measured at one point.
The TDA4XX transmitters are designed for media temperatures up to 400 °C and feature a flexible connection between housing and stem. The liquid-filled transmission system, integrated electronic calibration device and smooth flush diaphragm enable reliable measurement in demanding industrial applications. Depending on the required accuracy, the TDA432 model with 0.5 % accuracy and the TDA463 model with 1.0 % accuracy are available.
| Type | Pressure transmitter with integrated temperature measurement |
|---|---|
| Series | Dynisco TDA4XX Series |
| Models | TDA432 and TDA463 |
| Measuring function | Process pressure measurement with simultaneous temperature measurement at the media |
| Pressure range | 0…17 bar to 0…2000 bar |
| Temperature measurement | Thermocouple Type J |
| Accuracy TDA432 | ±0.5 % F.S.; up to 50 bar ±1 % F.S. |
| Accuracy TDA463 | ±1 % F.S. |
| Repeatability TDA432 | ±0.1 % F.S.; up to 50 bar ±0.2 % F.S. |
| Repeatability TDA463 | ±0.2 % F.S. |
| Resolution | Infinite |
| Maximum overload | 2 × pressure range; for 1000 and 1400 bar range max. 1750 bar; for 2000 bar range max. 2450 bar |
| Burst pressure | 6 × pressure range, max. 3000 bar |
| Material in contact with media | 15-5 PH SST, material no. 1.4545, DyMax™ coated |
| Measuring system | 4-arm strain gauge |
| Bridge resistance | 350 Ω |
| Output signal | ±3.33 mV/V + 10 % |
| Zero tolerance range TDA432 | ±5 % F.S. |
| Zero tolerance range TDA463 | ±10 % F.S. |
| Supply voltage | 10 VDC, max. 12 VDC |
| Internal calibration point | 80 % F.S. ±0.5 % |
| Insulation resistance | 1000 MΩ at 50 VDC |
| Max. diaphragm temperature | 400 °C |
| Diaphragm zero shift due to temperature change | TDA432 < 0.2 bar / 10 °C; TDA463 < 0.4 bar / 10 °C |
| Max. housing temperature | 120 °C |
| Housing zero shift due to temperature change | TDA432 ±0.2 % F.S. / 10 °C; TDA463 ±1.0 % F.S. / 10 °C |
| Sensitivity shift due to temperature change | TDA432 ±0.1 % F.S. / 10 °C; up to 50 bar ±0.2 % F.S. / 10 °C; TDA463 ±0.4 % F.S. / 10 °C |
| Pressure connection | 1/2-20 UNF-2A or M18 × 1.5 |
| Stem length / flexible connection | Option 15/46: stem length 152 mm and flexible connection 457 mm between sensor stem and housing |
| Pressure range codes | 17: 0…17 bar | 35: 0…35 bar | 50: 0…50 bar | 1C: 0…100 bar | 2C: 0…200 bar | 3.5C: 0…350 bar | 5C: 0…500 bar | 7C: 0…700 bar | 1M: 0…1000 bar | 1.4M: 0…1400 bar | 2M: 0…2000 bar |
| Accessories | Indicator 1290/1400, Process Readout UPR700, Process Controller ATC770, Cleaning Tool Kit, Tool Kit |
