Siemens QBM3020 Differential Pressure Sensor


(GST 18% Exclusive)

100 in stock


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(However please contact store for precise delivery schedule. Backorder also allowed)

Siemens QBM3020 Differential Pressure Sensor uses a diaphragm sensing element and provides high range pressure measurement with accuracy and an output of 4 to 20 mA. Available with switchable pressure-linear or extracting-the-root characteristic and digital display. With the extracting-the-root characteristic, the pressure measuring range is adjustable.
Applications: Measuring pressure in ventilation, Air conditioning ducts & Pressure supervision in labs, Checks air flows, HVAC, Control fans & Cleanrooms

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Siemens QBM3020 Differential Pressure Sensor is used to acquire differential, over, and under the pressure of air and nonaggressive gases in applications where a high degree of measuring accuracy and quality is essential. Siemens Differential Pressure Sensor will be appropriate for measuring volume flow via differential pressure since the output signal can be set to extract the root.

Features Of Siemens QBM3020 Differential Pressure Sensor:
  • The high degree of measuring accuracy.
  • Adjustable characteristic curve (pressure-linear or extracting-the-root).
  • Zero-point adjustment
  • Simple and fast mounting thanks to the integrated fixing angle bar in the housing
  • Maintenance-free thanks to excellent long-term stability
  • Calibrated and temperature-compensated measuring signal
  • Supplied with plastic tubing
  •  Very short response time

Additional information

Weight N/A


Model No


Select Model

QBM3020-1 Range 0…100 Pa, QBM3020-10 Range 0…1000 Pa, QBM3020-1U Range -50… +50 Pa, QBM3020-25 Range 1600… 2500 Pa, QBM3020-3 Range 0…300 Pa, QBM3020-5 Range 0…500 Pa, QBM3020-5D Range 0…500 Pa

Measuring Parameters

Differential Pressure

Measuring medium

Air and non-aggressive gases

Response Time

< 20 ms

Operating Temperature

0 to 70 °C

Operating Voltage

24VAC, 13.5VDC to 33V

Output Voltage

0 to 10 VDC

Sensing Method

Pressure diaphragm


Screw terminals

Protection class

IP 54

Power Supply

Safety extra low voltage (SELV/PELV)

Power Consumption

0.5 VA


Not galvanically separated, 3-wire connection, short-circuit proof, protected against reverse polarity.


Provided alongwith and valid for 1 year, traceable to National Standards.


1 Year Manufacturing Warranty


101 x 86 x 49 mm


200 Grams

Supply Scope

Instrument -1no, Instruction Manual -1no, Plastic Tubing -1no

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Siemens QBM3020 Differential Pressure Sensor

Siemens QBM3020 Differential Pressure Sensor


(GST 18% Exclusive)

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