DatasheetDynisco TDT432F / TDT463F Melt Pressure Transmitters
The Dynisco TDT432F / TDT463F Series includes 2-wire melt pressure transmitters with integrated thermocouple for demanding melt pressure and process temperature measurements. The transmitters are designed for reliable use in critical environments with high electromagnetic interference. Even when unshielded connection cables are used, the 4…20 mA current signal can be transmitted over long distances.
A key feature of the series is the new zero adjustment concept using the “Auto-Zero” function. Zero adjustment can be performed directly in the field via a push button on the transducer or remotely from the control room or central control system. The applied process pressure is converted by the integrated 2-wire amplifier into a proportional 4…20 mA current signal.
The TDT432F / TDT463F Series combines proven strain gauge technology with a flexible capillary connection between stem and housing as well as a smooth, flush diaphragm. The integrated thermocouple enables simultaneous temperature measurement directly at the media. In addition, the series includes integrated electronic range calibration. The wetted parts are made of DyMax™ coated 15-5 PH stainless steel, material no. 1.4545.
| Type | 2-wire melt pressure transmitter with integrated thermocouple |
|---|---|
| Series | Dynisco TDT432F / TDT463F Series |
| Models | TDT432F and TDT463F |
| Measuring function | Melt pressure measurement with simultaneous temperature measurement at the media |
| Output signal | 4…20 mA, 2-wire |
| Pressure range | 0…35 bar to 0…2000 bar |
| Accuracy TDT432F | ±0.5 % F.S.; up to 50 bar ±1 % F.S. |
| Accuracy TDT463F | ±1 % F.S. |
| Repeatability TDT432F | ±0.1 % F.S.; up to 50 bar ±0.2 % F.S. |
| Repeatability TDT463F | ±0.2 % F.S. |
| Resolution | Infinite |
| Measuring system | 4-arm strain gauge |
| Supply voltage | 12…36 VDC |
| Load resistance | 1200 Ω at 36 VDC; 500 Ω at 24 VDC |
| Internal calibration point | 80 % of full scale ±1 % |
| Range calibration | By calibration value 80 % F.S. |
| Zero adjustment | Via “Auto-Zero” adjustment function |
| Auto-Zero zero adjustment | Locally by push button on the transducer or remotely from control room / central control system by shorting the terminals |
| 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 |
| Max. diaphragm temperature | 400 °C |
| Diaphragm zero shift due to temperature change | TDT432F < 0.2 bar / 10 °C; TDT463F < 0.4 bar / 10 °C |
| Max. housing temperature | 85 °C |
| Housing zero shift due to temperature change | ±0.2 % F.S. / 10 °C |
| Sensitivity shift due to temperature change | TDT432F ±0.1 % F.S. / 10 °C; up to 50 bar ±0.2 % F.S. / 10 °C; TDT463F ±0.3 % F.S. / 10 °C |
| Insulation resistance | 1000 MΩ at 50 VDC |
| Signal output in fault condition | Signal level for failure indication according to NAMUR NE 43: ≤3.6 mA or ≥21 mA |
| Pressure connection | 1/2-20 UNF-2A or M18 × 1.5 |
| Stem length | Option 15: stem length 152 mm, standard |
| Pressure range codes | 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 | Cleaning Tool Kit, Tool Kit, Process Readout UPR700, Process Controller ATC770 |
