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The testo 6340 product line

testo 6 6341 a and 6 6343 - t the h high -e end s solution among t the l low P t transmitters • Zero p point d drift= due to automatic zeroing•Very good long-term stability and reproduceability • No t temperature d dependency: thanks to the automatic zeroing,the zero point is regularly adjusted at process temperature• Overload -p proof (at >130 % of the measurement range, themagnetic valves close; the sensor is ventilated on both sides•Optional display (testo 6343)
testo 6341: 0 to 10 Pa, with automatic zero pointadjustment, without display testo 6342: 0 to 50 Pa, without display testo 6343: 0 to 10 Pa, with automatic zero point adjustment, with display testo 6344: 0 to 50 Pa, with display testo 6 6342 a and 6 6344 – – t the r reliable t transmitters among t the l low P t transmitters • Very l low z zero p point d drift as well as very good long-term stability and reproducibility thanks to the optimized sensor• Very l low t temperature d dependency (temperature compensated sensor)•Optional display (testo 6344) testo 6 6349 – – t the v variants o of t the a above d described t types
Freely s selectable m measurement r ranges b between -1 1000 m mbar a and + + 1 1000 m mbar On the basis of the testo 6341 to 6344 instruments, allmeasurement ranges between -1000 mbar and +1000 mbar(also in other pressure units, e.g. in H
-1000 mbar0 mbar -100.000 Pa0 Pa+100.000 Pa +1000 mbar e.g. 4 mA = -500 mbar; 20 mA = +500 mbare.g. 4 mA = 0 hPa; 20 mA = +200 hPa 2 0 or bar), other pressureand wire connections, as well as an RS232 digital output and ametal housing (in testo 6341/43) are available on request. Forinstruments on the basis of the 6342/6344 technology, the smallest customer-specific measurement range is -50...+50 Pa; instruments on the basis of the 6341/6343 technology can also have smaller measurement ranges, e.g. -10...+10 Pa. Inductive s sensor The differential pressure sensor in the testo 6340 transmitter operates completely without friction and wear. A core, with a magnetic coating on both sides, is located in the middle of the concentrically undulating copper-beryllium membrane. Any deflection causes sensitive changes in the inductances of both coils L1 and L2. The smallest pressure differences in the sub-Pascal range are thus recorded.
Coil L1 Coil L2 Pressure connection P1 Pressure connection P2 Core with magnetic coating on bothsides Copper-beryllium membrane