QBE2003-P... Pressure Sensors QBE2103-P... for neutral and slightly aggressive liquids and gases • High-precision measuring • Measuring range 0 to 60 bar relative • Supply voltage AC 24 V / DC 12...33 V or DC 7.33 V • DC 0 ...10 V or DC 4.20 mA output signal • Measurement unaffected by changes in temperature • High temperature stability • Connection: external thread G Y2", inside thread M5 • Maintenance free thanks to outstanding long-term stability • High overload resistance • Robust and compact construction Smart Infrastructure

The pressure sensors are suitable for the measurement of relative pressure in HVAC plant, particularly in hydraulic and pneumatic systems using liquid or gaseous media (steam applications). Type summary When ordering a pressure sensor, please provide quantity, type reference, order number and product name. **) Cannot be used with types QBE2003-P10, QBE2003-P16, QBE2003-P25, QBE2103-P10, QBE2103-P16, and QBE2103-P25. These types do not have M5 inside threads.

Mode of operation The pressure sensors operate on the piezo-resistive measuring principle. The ceramic or stainless steel diaphram*) (thick-film hybrid technology) acquires the pressure through direct contact with the medium. The measurement is converted electronically into a linear output signal of DC 0...10 V or DC 4…20 mA. *) Applies to QBE2003-P10, QBE2003-P16, QBE2003-P25, QBE2103-P10, QBE2103-P16, and QBE2103-P25 Mechanical design The pressure sensor consists of: • Sensor hood with DIN EN 175301-803-A plug-in connection • Piezo-resistive measuring element integrated in the stainless steel...

Electrical interface Power supply Supply voltage (QBE2003...) Current consumption Supply voltage (QBE2103...) Current consumption External supply line protection Protection by extra low voltage (SELV, PELV) AC 24 V ± 1 5%, 50...60 Hz or DC 12...33 V <7 mA, < 0.5 VA DC 7.33 V <23 mA, < 0.7 VA Fuse slow max. 10 A or Circuit breaker max. 13 A Characteristic B, C, D according to EN 60898 or Power source with current limitation of max. 10 A DC 0 ...10 V, load >10 kQ, < 100 nF, 3-wire Functional data Measuring accuracy FS = Full scale Short circuit proof, protected against reverse Any connection polarity...

Product standard Electrical equipment for measurement, control and laboratory use. EMC requirements. General requirements Materials Pressure connection Stainless steel 1.4404 / AISI 316L Plug housing Polyarylamide 50 % GF VO Materials and media contact Press. Stainless steel 1.4404 / AISI 316L connection Meas.elem.**) Ceramics Al2O3 (96 %) Stainless steel Sealant FPM Weight Including packaging 0,171 kg *) The following types do not have M5 inside threads. QBE2003-P10, QBE2003-P16, QBE2003-P25, QBE2103-P10, QBE2103-P16, and QBE2103-P25 **) Stainless steel for types QBE2003-P10, QBE2003-P16, QBE2003-P25,...

*) The following types do not have M5 interior threads: QBE2003-P10 QBE2003-P16 QBE2003-P25 QBE2103-P10 QBE2103-P16 QBE2103-P25 Pg9 Published by: Siemens Switzerland Ltd. Smart Infrastructure Global Headquarters Theilerstrasse 1a CH-6300 Zug Switzerland Tel. +41 58-724 24 24 © Siemens Switzerland Ltd 2005 www.siemens.com/buildingtechnologies Delivery and technical specifications subject to change 6/6