User Manual

ManualsBrandsSiemens ManualsSensors PressurePressure Sensors QBE2002-P..

Table Of Contents

CE1N1909en

2021-04-07

Smart

Infrastructure

Pressure Sensors

QBE2002-

P…

QBE2102-

P…

for liquid and gaseous media

 Piezo-resistive measuring system

 DC 0 ...10 V or DC 4…20 mA output signal

 Measurement unaffected by changes in temperature

 High temperature stability

 No mechanical aging or creepage

 External thread G½"

 Excellent EMC characteristics

Use

The pressure sensors are suitable for the measurement of static and dynamic positive

pressure in HVAC plant, particularly in hydraulic and pneumatic systems using liquid or

gaseous media (steam applications).

Technical design

The pressure sensors operate on the piezo-resistive measuring principle. The ceramics

diaphragm (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.

1909P01

Summary of content (6 pages)

PAGE 1
909P01 1 909 Pressure Sensors QBE2002-P… QBE2102-P… for liquid and gaseous media        Piezo-resistive measuring system DC 0 ...
PAGE 2
Type summary Type reference QBE2002-P1 QBE2002-P2 QBE2002-P4 QBE2002-P5 QBE2002-P10 QBE2002-P16 QBE2002-P20 QBE2002-P25 QBE2002-P40 QBE2002-P60 QBE2102-P4 QBE2102-P5 QBE2102-P10 QBE2102-P16 QBE2102-P20 Pressure range 0...1 bar 0...2 bar 0...4 bar 0...5 bar 0...10 bar 0...16 bar 0...20 bar 0...25 bar 0...40 bar 0...60 bar 0...4 bar 0...5 bar 0...10 bar 0...16 bar 0...20 bar 0...100 kPa 0...200 kPa 0...400 kPa 0...500 kPa 0...1.0 MPa 0...1.6 MPa 0...2.0 MPa 0...2.5 MPa 0...4.0 MPa 0...6.0 MPa 0...400 kPa 0.
PAGE 3
Mounting notes The tapping point should be at the side, near the bottom of the pipe. Do not measure the pressure from the top of the pipe (where it may be affected by airlocks) or the bottom (where it may be affected by dirt). Always evacuate the system. Pressure measurement with condensing gases The tapping point should be at the top so that no condensate reaches the sensor.
PAGE 4
Disposal The devices are considered electronics devices for disposal in terms of European Directive 2012/19/EU and may not be disposed of as domestic waste.  Dispose of the device via the channels provided for this purpose.  Comply with all local and currently applicable laws and regulations. Technical data Electrical interface Power supply with extra-low voltage only (SELV) Supply voltage (QBE2002…)Current consumption AC 24 V ±15%, 50...60 Hz or DC 18...
PAGE 5
Degree of protection Connections Environmental conditions Directives and Standards Protection degree of housing IP65 according to EN 60529 Protection class III according to EN 60730 Connecting cable PVC, length 1.5 m, 3 x 0.25 mm2 stranded wires Screwed fitting external thread G½", inside thread M5 Operation to Climatic conditions Temperature Humidity IEC 60 721-3-3 class 3K7  40...
PAGE 6
(+) G ( ) U QBE2102… (+) G ( ) (0) M 19 07G 02 QBE2002… 1909G01 Internal diagram G (+) Color of core Brown U( ) Green M (0) White GND BT terminal marking G (+) Color of core Brown Green Meaning Supply voltage DC 11...33 V Output signal DC 4...20 mA BT terminal marking I( ) Meaning Supply voltage AC 24 V or DC 18...33 V Output signal DC 0...10 V (signal ground GND) Dimensions 20 ø 34,5 1909M01 10 G1/2 QBE2002-P… QBE2102-P… SW 27 ca. 87 ca. 108 37 37,5 AQB22.