Proline Promass Q 300
6
Hauser
Density measurement
The measuring tube is continuously excited at its resonance frequency. A change in the mass and
thus the density of the oscillating system (comprising measuring tube and fluid) results in a
corresponding, automatic adjustment in the oscillation frequency. Resonance frequency is thus a
function of medium density. The microprocessor utilizes this relationship to obtain a density signal.
Volume measurement
Together with the measured mass flow, this is used to calculate the volume flow.
Temperature measurement
The temperature of the measuring tube is determined in order to calculate the compensation factor
due to temperature effects. This signal corresponds to the process temperature and is also available
as an output signal.
Measuring system
The device consists of a transmitter and a sensor.
The device is available as a compact version:
The transmitter and sensor form a mechanical unit.
Transmitter
Promass 300
A0026708
Device versions and materials:
• Transmitter housing
– Aluminum, coated: aluminum, AlSi10Mg, coated
– Cast, stainless: cast, stainless steel, 1.4409 (CF3M) similar to 316L
• Material of window in transmitter housing:
– Aluminum, coated: glass
– Cast, stainless: glass
Configuration:
• External operation via 4-line, backlit, graphic local display with touch
control and guided menus ("Make-it-run" wizards) for application-
specific commissioning.
• Via service interface or WLAN interface:
– Operating tools (e.g. FieldCare, DeviceCare)
– Web server (access via Web browser, e.g. Microsoft Internet
Explorer, Microsoft Edge)
Sensor
A0030075
• Excellent performance across a wide range of applications
• Simultaneous measurement of flow, volume flow, density and
temperature (multivariable)
• Immune to process influences
• Nominal diameter range: DN 25 to 100 (1 to 4")
• Materials:
– Sensor: stainless steel, 1.4404 (316/316L)
– Measuring tubes: stainless steel, 1.4404 (316/316L)
– Process connections: stainless steel, 1.4404 (316/316L)
