FA-23 - 1 Pages

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FA-23

Catalog excerpts

Piezoresistive Force Transmitter Series FA-23 2…15 kN A double sealing system with piezoresistive pressure measurement cell enables a simple, exact force measurement cell to be realized. The pressure measurement cell used may be calibrated directly in force, taking into consideration the diameter of the piston which transfers the force via a high-viscosity fluid to the pressure measurement cell. The force transmitters are employed at locations where a force cannot be calculated directly from the fluid pressure and area (e.g. if additionally the tank filling is under pressure). One of many applications is e.g. the determination of the amount contained in a tank. The accuracy of Series FA-23 is typically 15 litres with a 1500 litres tank. Digital Indicators For digital display of the force in Newton (N), the mass in kilogram (kg) or the weight in kilo­­ pond (kp), any display device may be connected. KELLER has expanded its manometer range by the LEO 4, to which several force measurement cells may be connected and which displays the sum of the forces or weights. The force values are preferably read out via the digital interface. For taring a tank, the weight may be read out from each individual force measurement cell. If the volume of the tank is known, calibration of the tank content display can also be done on the spot by setting the two points “tank empty” and “tank full” via the entry keys before and after filling. SpeCifiCationS Force Ranges (FS) FA-23 2 5 10 15 kN Overload 3 7 15 20 kN 3-Wire 2-Wire 0,5…4,5 V@5 V* 4…20 mA Supply 4,75…5,25 V 8…28 V Linearity (incl. Hysteresis & Repeatability) 0,5 % typ. Output Hysteresis (O-Ring Friction) < 1 N Total Accuracy 0…50 °C ± 1 %FS Frequency Band / Measurements per second 1 kHz Compensated Temperature Range 0…+50 °C Operating Temperature -25…+80 °C Protection IP 65 Vibration 20 g (5...2000 Hz, max. amplitude ± 3 mm), acc. to IEC 68-2-6 Shock 20 g (11 ms) CE-Conformity EN 61000-6-2, EN 61000-6-3, EN 61000-6-4 Dimensions Ø 34 mm, height 38 mm *ratiometric to supply Subject to alterations 05/06 KELLER AG für Druckmesstechnik St. Gallerstrasse 119 CH-8404 Winterthur Tel. +41 (0)52 - 235 25 25 Fax +41 (0)52 - 235 25 00 KELLER Ges. für Druckmesstechnik mbH Schwarzwaldstrasse 17 D-79798 Jestetten Tel. +49 (0)7745 - 9214 - 0 Fax +49 (0)7745 - 9214 - 60 Companies approved to ISO 9001 / EN 29001 www.keller-druck.com

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