Passive pressure transmitters with DIN 43650 - 45326 connector HD 2004T - HD 20V4T - HD9408T, Merk : DeltaOhm

HD 2004T and HD 20V4T are microprocessor pressure transmitters, the former having a current output (4÷20 mA) and the later having a voltage output (0÷5V, 1÷5V or 0÷10V). The sensitive element consists of a bridge of piezoresistive resistances laid on a ceramic diaphragm. When changing the applied pressure, the bending of this diaphragm causes a linear and proportional change of the bridge resistances. The stainless steel case (30 mm diam.) includes both the sensor and the electronics: unscrewing the base equipped with faston connectors, you can reach the keys to adjust the upper and the full scale. A LED helps the user during the calibration procedure. A ¼” BSP threaded connection and an opening in on the case for a 27 mm wrench are provided to connect the transmitter with the plant under pressure. On the other side, a 3/4-pole (depending on models) male faston connector, the relevant female outlet and a PG7 cable gland according to DIN 43650 are provided to grant the electrical links. Technical Specifications Output Signal Current 4...20 mA (HD 2004T...) Voltage 0...5V (HD 20V4T... 1), 1...5V (HD 20V4T... 2), 0...10V (HD 20V4T... 3) Pressure range 1, 2.5, 4, 6, 10, 16, 25, 40, 60, 100, 160, 250, 400 and 600 absolute bars 1, 2.5, 4, 6, 10, 16, 25, 40, 60 relative bars Overpressure limit Up to 250 bars Twice the rated value 400 nominal bars 750 bars 600 nominal bars 750 bars Sensor Piezoresistive Material in contact with the measuring fluid Alumina Fluid in contact with the diaphragm Gas or liquids Operating temperature -30...+80°C Power supply voltage 10...30Vdc (15...30Vdc for models having 0...10Vdc output) Zero and full scale adjustment ±10% through up, down and enter) Accuracy (linearity, hysteresis and repeatability) ±0.4%F.S. Gain sensitivity to temperature changes (@ 25°C) ±0.008%F.S. between 0 and 70°C ±0.012%F.S. between -30°C and 0°C and between 70°C and 80°C Zero sensitivity to temperature changes (@ 25°C) d ±0.04%F.S. Connection to plant under pressure ¼”BSP male Electrical connection 3/4 -pole faston male connector + DIN 43650 female connector (outlet) Housing AISI 304 stainless steel Size Ø 30x90 mm (included DIN 43650 connector) Weight 190 g Load resistance for HD 2004T models... (see Fig.2) RLmax = 636 © a 24 Vdc RLmax = (Vdc - 10) 22mA Load resistance for HD 20V4T models... RL e 10K Response time 1 sec. (Time required to achieve the 63% of the final variation) Protection class IP54 The passive pressure transmitters of the HD 9408T... series convert the pressure variation exerted on a flexible diaphragm into a two-wire proportional and linear 4÷20 mA signal. The sensitive element is a bridge of piezoresistive resistances laid on a diaphragm of special ceramic material. The bending of the diaphragm leads to a variation in the resistances that is proportional to and linear with the pressure applied. The quality of the materials and the technology used allow the creation of elements that are very precise, reliable and repeatable over time. The sensitive element is housed inside a container made of stainless steel, diameter 30x70 mm., containing the pressure sensor and the electronics; at the base there is an opening for a 27 mm wrench, while the threaded part for connecting the pressurized system is ¼” BSP. On the opposite side, the transmitter is equipped with a three-pole circular metal connector according to DIN 41524 and two multiturn trimmers which allow setting the upper and full scale of about ±5% of their value. Technical Specifications Output Signal 4…20 mA Pressure range 2.5, 4, 6, 10, 16, 25, 40, 60, 100, 160, 250, 400 and 600 absolute bars 250, 400, 600 relative mbars 1, 2.5, 4, 6, 10, 16, 25, 40, 60 relative bars Resolution Infinite Overpressure limit Up to 250 bars Twice the rated value 400 nominal bars 750 bars 600 nominal bars 750 bars Sensor Piezoresistive Material in contact with the measuring fluid Alumina, AISI 316 for models 250, 400 and 600 relative mbars Fluid in contact with the diaphragm Gas or liquids Operating temperature -10...+70°C Storage temperature +20...+80°C Power supply voltage 9...30Vdc , maximum ripple 4Vpp Zero and full scale adjustment ±5% by two trimmers Accuracy (Linearity, hysteresis and repeatability) ±0.4%F.S. Temperature compensation 0...80°C Connection to plant under pressure ¼”BSP male Electrical connection Male three-pole circular connector according to DIN 41524 Housing AISI 304 stainless steel and Viton Size / Weight Ø 30x70 mm / 190 g Load resistance RLmax = (Vdc - 9) 22mA Response time 0.5 sec. (Time required to achieve the 63% of the final variation) Assembly position Any Fixing wrench 27 mm