Data Sheet for Product

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Siemens Pressure sensors QBE2004-P... / QBE2104-P… A6V10434676_en--_b
Building Technologies 2017-12-01
Use
The pressure sensors are suitable for the measurement of static and dynamic positive
pressure in HVAC plant, particularly in hydraulic and refrigeration systems using liquid
or gaseous media.
Type summary
Type reference
Stock number
Pressure range
Output signal
QBE2004-P10U
S55720-S310
−
1...
+
9 bar
− 100...
+
900 kPa
DC 0…10 V
QBE2004-P25U
S55720-S311
−
1...
+
24 bar
− 100...
+
2400 kPa
DC 0…10 V
QBE2004-P30U
S55720-S312
−
1...
+
29 bar
− 100...
+
2900 kPa
DC 0…10 V
QBE2004-P60U
S55720-S313
−
1...
+
59 bar
− 100...
+
5900 kPa
DC 0…10 V
QBE2104-P10U
S55720-S314
−
1...
+
9 bar
− 100...
+
900 kPa
DC 4…20 mA
QBE2104-P25U
S55720-S315
−
1...
+
24 bar
− 100...
+
2400 kPa
DC 4…20 mA
QBE2104-P30U
S55720-S316
−
1...
+
29 bar
− 100...
+
2900 kPa
DC 4…20 mA
QBE2104-P60U
S55720-S317
−
1...
+
59 bar
− 100...
+
5900 kPa
DC 4…20 mA
Ordering and delivery
When ordering a pressure sensor, please provide type reference, stock number and
product name.
Quantity
Type ref. (ASN)
Stock number (SSN)
Product Name
1
QBE2004-P10U
S55720-S310
Pressure sensor
Any accessories required must be ordered separately.
Accessories
Type ref.
Name
Data sheet
FT-PZ1
Adapter for QBE2x04 with G ½" thread
A6V10434676
AQB2004 Fixing bracket for sensor (for remote
mounting)
A6V10434028
FT-PZ1 consists of a transition screw fitting made from stainless steel (1.4305) and
two copper seals. The adapter is used for gas or hydraulic systems with G ½" threads
where higher medium temperatures are required.
ISO 228/1
1907Z01
G 1/2
UNF 7/16
ANSI/ASME B1.1a
Not suitable for refrigerants (ammonia).
Mode of operation
The pressure sensors operate on the piezo-resistive measuring principle. The sensor
diaphragm (measuring element) of stainless steel acquires the pressure through direct
contact with the medium. The pressure measuring cell is fully welded. The
measurement is converted electronically into a linear output signal of DC 0...10 V or
DC 4…20 mA.
Example
Caution !