Maintain precise pressure balance across cleanrooms and monitor air filter cleanliness effortlessly. Voltec Engineering Limited is a reliable differential pressure sensor supplier in Bangladesh. Differential pressure transmitters measure exact pressure differences across two process points or isolation barriers. Pharmaceutical cleanrooms, HVAC duct systems, and industrial boiler plants rely on differential pressure sensors for safe airflow control.

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SIEMENS Air Duct Differential Pressure Sensor QBM3020-1

SIEMENS Air Duct Differential Pressure Sensor QBM3020-1

● High degree of measuring accuracy ● Adjustable characteristic curve (pressure-linear or extracting-the-root) ● Operating voltage – QBM3020-..: AC 24 V / DC 13,5...33 V – QBM3120-..: DC 8...33 V ● Output signal – QBM3020-..: DC 0...10 V – QBM3120-..: 4…20 mA ● Zero-point adjustment ● Simple and fast mounting thanks to integrated fixing angle bar in the housing ● Maintenance free thanks to excellent long-term response ● Calibrated and temperature-compensated measuring signal ● Supplied with PVC tubing ● Very short reaction time
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