Series 35 X HT(T)


Catalog excerpts

Series 35 X HT(T) - 1

Pressure Transmitter for Bio-Reactors Series 35 X HTdigitally compensated / rangeable / digital and analog output Series 35 X HTT Series 35 X HT Piezoresistive pressure transmitter for applications in bio-reactors or autoclaves. The transmitter is compensated up to 150 °C and may be operated continuously or sterilised at this level, including the special circuit electronics. The transmitters are supplied in absolute or gauge versions, with current or voltage output. The sensing component is a micro-machined silicon pressure chip of high sensitivity. An independent temperature sensor is integrated on the surface of the silicon chip. Digital Output of Transmitter These Series are based on the stable, piezoresisitive transducer and a micro-processor electronics with integrated 16 bit A/D converter. Temperature dependencies and non-linearities of the sensor are mathematically compensated. With the READ30 software and the KELLER cable K-107, the calculated pressure can be displayed on a Palmtop, Laptop or PC. The READ30 software also allows the recording of pressure signals and the graphic display on the PC. Up to 128 transmitters can be hooked together to a Bus-system. Transmitter with Analog Output The micro-processor integrates a D/A converter of 16 bit for analog signal outputs of 4...20 mA or 0.10 V. The output rate is 100 Hz (adjustable). The accuracy is diminished by this converting process by 0,05 %FS. The digital output is available on all transmitters with analog output. Programming With the KELLER software READ30 and PROG30, a RS485 converter (i.e. K-102, K-104 or K-107 from KELLER) and a PC, the pressure can be displayed, the units changed, a new gain or zero set. The analog output can be set to any range within the compensated range. KELLER Ges. fur Druckmesstechnik D-79798 Jestetten +49 7745 9214 0 E Edition 08/2004 Subject to alterations Companies approved to ISO 9001 tsfr

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Series 35 X HT(T) - 2

Specifications Standard Pressure Ranges (FS) and Overpressure in Bar Version Absolute / Gauge -1 1 3 10 30 bar 1) Linearity + Hysteresis + Repeatability + Temp. Coeff. + Zero + Span Tolerance 2) other compensated temp. ranges on request True Output Rate 100 Hz Long Term Stability typ. Range < 2 bar: 2 mbar Electrical Connection - Binder-Plug 723 (5 pole) Insulation Storage- / Operating Temperature Range Pressure Endurance Vibration Endurance Shock Endurance Protection CE-Conformity Material in Contact with Media Weight Dead Volume Change 100 MO / 50 V -20.150...

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