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21SC Series

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We are occupied with offering a complete scope of Keller Pressure Transmitter 21SC Series to the clients. Our clients can profit these items in various details from us.


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These piezoresistive silicon pressure transmitters are delivered on the new KELLER programmed brazing lines, making conceivable the large scale manufacturing of top notch pressure transmitters for minimal price. This new innovation permits the fissure free development of the strain port without utilizing seals or O-rings. In the metal sensor line (Series 21 MC), a steel embed and a nickel stomach is brazed into a metal lodging. In the steel sensor line (Series 21 SC), all parts are of treated steel (AISI 316 L). The header with the silicon pressure sensor and glass lead-through pins is welded to the steel embed under the oil filling. The small chip-on-board enhancer (weight ≈1 gram) with the KELLER-explicit “PROGRES” circuit is mounted straightforwardly on the glass feed-through pins. It is then embodied in silicone compound for moistness and vibration security.