AEssentially, mass flow rate is the amount of mass of a gas or liquid that flows in a certain amount of time. More info click: https://fluxushitech.com/knowledge-base-mass-flow-vs-volume-flow

ABronkhorst instruments are designed to measure and control both gases and liquids. Some popular series include:
EL-FLOW – for gases
LIQUI-FLOW – for liquids
ES-FLOW – for low flow liquid measurement

ABronkhorst offers an extremely wide range:
Gases: from 0.014 mln/min up to 11,000 m³n/h
Liquids: from 75 mg/h up to 600 kg/h, depending on the model

AEL-FLOW Select is a proven, general-purpose gas flow controller.
EL-FLOW Prestige is the advanced version offering better control performance, pressure compensation, and optional multi-gas/multi-range

ABronkhorst support:
Analog (0-5 V, 0-10 V,4-20 mA)
Digital protocols: RS-232, Modbus, Profibus, Profinet, EtherCAT, DeviceNet, CANopen, and FLOW-BUS
Some models also offer HART and EtherNet/IP

A±0.5% of reading ±0.1% of full scale for standard gas models
High-accuracy versions are available for demanding applications

AYes, special versions are available with corrosion-resistant materials (e.g., Hastelloy etc.) for aggressive media.

AYes, and they are factory-calibrated using high-precision reference standards. Regular recalibration is recommended annually depending on the application.

ABronkhorst provides:
Cables and connectors
Power supplies
Filter and valve assemblies
Displays
Software tools for configuration and monitoring (Flowsuite2)

AYou can contact your local distributor or Bronkhorst’s global service centers. Technical documents, manuals, and software are available on https://fluxushitech.com/