Europe’s leading manufacturer of isolated pressure transducers and transmitters
- Pressure ranges from 5 mbar to 2000 bar
- High volumes at low prices, great flexibility, highest accuracies
- Production of more than one million pressure transducers and transmitters per year
- KELLER is certified according to ISO 9001:2008
Digital Output of Transmitter:
This high precision of 0,01 %FS is available as an option (the standard Series 33 X has an accuracy of 0,05 %FS). These Series are based on the stable, floating piezoresisitive transducer and the newly developed XEMICS micro-processor with integrated 16 bit A/D converter. Temperature dependencies and non-linearities of the sensor are mathematically compensated.
The Series 4 LC…9 LC family of miniature OEM pressure transmitters combines a piezo resistive pressure sensor with -40…150 °C-capable signal conditioning in one compact, easy-to-integrate package.
The "LC" line of miniature pressure transmitters leverages Keller's extensive background in high-stability piezoresistive pressure sensors and innovative digital signal processing. Now, both pressure sensor and signal processor are integrated into a miniature, hermetically-sealed housing no larger than was once required for the sensor only!
The 36 Xi W series is based on the proven KELLER 36 X W series using the high-quality 10 L-series pressure transducer. All series X pressure level transmitters feature an RS485 interface, which provide pressure and temperature standard, while versions requiring higher accuraty, temperature or conductivity sensor are available options. Multi-parameter probes fitted with pressure, temperature and conductivity sensors (CTD – conductivity, temperature, depth), are approximately 90 mm longer.
The LEO 5 combines the notable features of Keller’s successful LEO-Record and LEX 1 digital pressure gauges, featuring an IP66-rated stainless steel enclosure. This robust housing combines contemporary microcontroller-based electronics and capacitive-touch controls, operated through the environmentally-sealed safety glass front panel. The large backlit LCD display ensures readability in any lighting conditions.
The piezoresistive pressure transducers Series M5 are ideal, thanks to the M5 fine thread, for taking measurements at close proximity in places where access is a problem and in very thin pipes – exactly the kinds of conditions associated with engine test benches. The front-flush design prevents gas bubbles interfering with fluid measurements and supports measurements up to 200 °C without a cooling adapter. The extreme dynamic range of 0...50 kHz makes it possible to record very fast pulsations just as reliably as those associated with static pressure values. A vibration-resistant Teflon FEP cable (IP67) ensures the 80 mV output signal is routed securely out of the hot environment and then onwards for processing.