NG # 04023-HW-KELLER-045
The KELLER Series 20S is a line of OEM pressure transducers featuring an integrated threaded pressure connection and a fully welded housing. Designed to bridge the gap between unamplified OEM pressure capsules (like the Series 10L) and fully packaged industrial transmitters, the Series 20S offers high-precision measurement in a compact format without internal elastomer seals.
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Custom Pricing
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Stock
Custom Pricing
Get A QuoteThe Series 20S pressure transducers with threaded connections offer high long-term stability and overload resistance, as well as optimized temperature behavior. The compact, seal-free stainless steel housing is suitable for a variety of OEM applications. Each pressure transducer is calibrated by pressure and temperature and comes with a detailed calibration sheet.
| Parameter | Specification |
| Pressure Ranges | $0\text{--}1\text{ bar}$ up to $0\text{--}1,000\text{ bar}$ |
| Pressure Reference | Vented Gauge (PR), Absolute (PAA), Sealed Gauge (PA) |
| Accuracy / Linearity | $\pm 0.25\%\ \text{FS}$ typical (BFSL) / $\pm 0.1\%\ \text{FS}$ high-precision option |
| Long-Term Stability | $\le \pm 0.2\%\ \text{FS / year}$ |
| Signal Output (Unamplified) | $\sim 100\text{ mV}$ full scale (dependent on excitation and range) |
| Bridge Resistance | $3.5\text{ k}\Omega \pm 20\%$ at $20^\circ\text{C}$ |
| Excitation / Power | $1.0\text{ mA}$ nominal constant current ($10\text{ VDC}$ constant voltage option) |
| Operating Temp. Range | $-40^\circ\text{C}$ to $+120^\circ\text{C}$ |
| Compensated Temp. Range | $-10^\circ\text{C}$ to $+80^\circ\text{C}$ |
| Wetted Materials | Stainless Steel AISI 316L (1.4435 / 1.4542) / Optional Hastelloy C-276 |
| Process Connections | G1/4" male, 1/4" NPT male, 7/16"-20 UNF, or custom OEM threading |
| Electrical Interface | Flying leads, glass-feedthrough header pins, or integrated cable outlet |
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