SIEMENS Differential Pressure Sensor QBM2030
• Pressure-linear characteristic with selectable pressure measuring range.
• Operating voltage AC 24 V or DC 13.5…33 V.
• Output signal DC 0…10 V.
• Zero-point adjustment.
• Simple and fast mounting thanks to integrated mounting brackets in the housing.
• Maintenance free.
• Calibrated and temperature-compensated measuring signal.
• Supplied with tubing connection set.
Description
SIEMENS Differential Pressure Sensor QBM2030
Application:-
The differential pressure sensor acquires differential, over, and under the pressure of air and nonaggressive gases.
Fields of application-
• Measuring the slightest differential pressures in ventilation and air conditioning ducts.
• Check air flows.
• Monitor filters and control fans.
SIEMENS Differential Pressure Sensor QBM2030
TECHNICAL DATA:-
Electrical interface-
| Power supply safety | y extra low voltage (SELV/PELV) | |
| Operating voltage AC | AC 24 V ±15 %, 50/60 Hz or DC 13.5…33 V | |
| Power consumption | <0.5 VA | |
| Current draw | <10 external | |
| l supply line protection |
|
| Output voltage | DC 0…10 V |
| Burden (RLoad) | >10 kΩ |
| Output | Not galvanically separated, 3-wire connection,
short-circuit proof, protected against reverse polarity |
Functional data-
| Measuring range | refer to “Type summary” |
| Sensing element | Piezo-resistive (silicone membrane, ceramic bar) |
| Measuring accuracy at recommended mounting position and 20 °C ambient temperature | (FS = Full Scale) |
| Total error | <±3 % FS |
| TC zero point | <±0.1 % FS/°C |
| TC sensitivity | <±0.06 % FS/° |
| Reaction time | 1 s |
| Tolerable overload on one side on P1on P2 | 5,000 Pa(10,000 Pa for types QBM2030-5, -30)400 Pa |
| Rupture pressure0…70 °Cat room temperature | 1.5 × overload 2 × overload |
| Media | Air and non-aggressive gases |
| Admissible medium temperature | 0…70 °C |
Connections-
| Electrical connection | |
| Screw terminals for | max. 1.5 mm2 (wire or stranded wire) |
| Cable lead | Cable gland entry Pg 11 (without cable strain relief) |
Degree of protection-
| Protection degree of housing at recommended installation | IP42 according to EN 60529 |
| Protection class | III according to EN 60730-1 |
Environmental conditions-
| Permissible ambient temperature | |
| Operation | 0…70 °C |
| Transport/storage | -25…+70 °C |
| Permissible ambient humidity | <90 % r.h. (without condensation) |
Related products
