Keradiff 100 Intelligent Differential Pressure Transmitter
Keradiff 100 Intelligent Differential Pressure Transmitter memiliki sensor silikon yang kuat dan tahan beban berlebih dengan kapasitas luar biasa untuk akurasi pengukuran tinggi, ketahanan vakum, dan keandalan untuk semua pengukuran stabil jangka panjang. Sistem pengukuran kinerja tinggi digunakan untuk mengukur tekanan diferensial, tingkat pengisian dan aliran, sehubungan dengan pemancar tekanan diferensial, untuk gas, uap, dan cairan. Perangkat ini cocok untuk tekanan diferensial serta untuk tekanan berlebih positif dan negatif.
Bahan yang sesuai untuk proses dan proses serta varian desain yang berbeda memungkinkan penggunaan perangkat ini dengan media korosif atau abrasif, serta untuk proses dengan persyaratan aseptik tinggi (misalnya dalam industri makanan atau farmasi). Versi flush-mount dan pemancar tekanan untuk hampir semua sambungan proses tersedia untuk aplikasi tingkat pengisian.
Keradiff 100 Intelligent Differential Pressure Transmitter berbagai jenis sel ukur untuk rentang pengukuran bergradasi mulai dari 10 bar, PN 160 bar, hingga 40 bar, PN 420 bar, sehingga memungkinkan adaptasi optimal terhadap kondisi proses. Sinyal komunikasi digital (protokol HART®) dapat ditumpangkan ke sinyal 4...20 mA dan menawarkan semua informasi yang diperlukan untuk teleparametrisation (teknologi pintar), serta versi dengan Profibus PA. General Information | ||
| Device type | KERADIFF | |
| Application | Differential pressure measurement | |
| Measuring sensor | Silicon sensor | |
Output | ||
| Output signal | 4…20 mA with superimposed HART® protocol or PROFIBUS PA | |
| Breakdown signal | 3.6 mA minimum alarm, 21 mA maximum alarm | |
| Current limit | 3.8 mA; 20.5 mA | |
| Resolution | Current output: 1µA | |
| Display: adjustable | ||
Measuring accuracy | ||
| Influence of the system pressure on the zero point range | 0.2% / 100bar | |
| Thermal change | ± 0.2% for -40..-10°C or +60…+85°C | |
| Temperature coefficient for zero signal or output range | 0.02% / 10K (-10…+60 °C) and | |
| 0.1% / 10K (-40…-10 °C or +60…85°C) | ||
| Temperature coefficient of the pressure transmitter | see pressure transmitter table for TK of the zero point | |
| Deviation from the characteristic curve: | max. 0.1% | |
| max. 0.2% for the measuring limit range | ||
| Hysteresis: | 0.1% of the set range | |
| Repeatability: | 0.1% of the set range | |
| Heating time: | 4…20 mA HART® < 10s, PROFIBUS PA 6s | |
| Setting time: | between 0.5 and 2s, depending on the measuring range | |
| Rise: | between 0.4 – 1.6s, depending on the measuring range | |
| Long-term drift | 0.2% / a | |
| Adjustable attenuation | 0…999s, adjustable via on-site operating field or PC (factory setting: 2s) | |
| Conditions for use | ||
| Medium temperature | -40…+85 °C | |
| Nominal temperature | -40…+85 °C | |
| Operating temperature | -40…+85 °C | |
| -20…+70 °C with on-site display | ||
| Storage temperature | -40…+100 °C | |
| -40…+85 °C on-site display | ||
| Protective class according to EN 60529 | IP 67 | |
| Electromagnetic compatibility (EMV) | Electromagnetic compatibility according to EN 61326 and NAMUR recommendation EMV | |
| (NE21) | ||
| Vibration strength | ± 0.1% according to DIN/IEC 68, Part 2-6, based on sensor range, measured on a 6000 | |
| mbar sensor | ||
| Installation position | Any, compensation when calibrating the measuring start | |
| Auxiliary energy | ||
| Supply voltage | 11.5…45V | |
| Residual ripple | No influence for 4…20 mA signal up to ± 5% residual ripple | |
| Design configuration | ||
| Materials | Housing: | Copper-free die-cast aluminium housing with a protective coating on a |
| polyester basis, grey, resistant to seawater, salt-spray test DIN 50 021 (504 | ||
| hours) passed, optional process connection, O-rings made from NBR for | ||
| cover sealing, assembly bracket made from C22.8 | ||
| Membrane: | AISI 316 L | |
| Flange: | DIN 19213 from AISI 316 L | |
| For KERADIFF 140, 150: | ||
| Pressure transmitter from AISI 316 L, see corresponding data sheets, special materials | ||
| a..A: | ||
| Capillary tube and holding pipe made of AISI 316 L | ||
| KERADIFF 150: Installation of the pressure transmitter: rigid connection via holding flange | ||
| required | ||
| Process connections | All standard and common connections (see dimensional drawings) | |
| Electrical connection | M20x1,5 | |
| Terminal connection with a built-in inter-clock diode for cable diameters of 0.5 to 2.5 mm², | ||
| two-wire connection cable with a standard installation cable. | ||
| Climate class | Class 4K4H (air temperature: -20…+55°C, relative humidity: 4…100%) according to DIN | |
| EN 60721-3-4 fulfilled (condensation possible) | ||
1. Housing
2. Jumper untuk sinyal uji 4…20 mA
3. Terminal pembumian internal.
4. Terminal pembumian eksternal.
5. Sinyal uji 4…20 mA antara plus dan terminal uji.
6. Pasokan tegangan minimum = 10,5 V DC, jumper terpasang menurut diagram.
7. Pasokan tegangan minimum = 11,5 V DC, jumper terpasang posisi "tes". Perangkat dengan perlindungan tegangan berlebih terintegrasi diberi label dengan "OVP" (perlindungan tegangan lebih) pada titik ini. Sumber: hengesbach.com | inaparts.com
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