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Coriolis Flow Meters
QFlow – QMASS 5525 Series
The QFlow QMASS 5525 is a DN25 bent-tube Coriolis flow meter for robust mid-flow measurement in oil, gas and chemical processes. A single sensor measures mass flow, density and temperature directly across 0 to 12,000 kg/h with accuracy from ±0.1 % of reading, and 4–20 mA with HART and Modbus RTU outputs suit analogue loops and digital control. DN25 flanged connections rated to 40 or 100 bar make it dependable for general process metering. Within the QMASS family choose this size for duties to 12,000 kg/h; sister sizes run from 360 to 480,000 kg/h.
Measurement range
0 to 12000 kg/h mass flow
Accuracy
Up to ±0.1 % of reading
Output / communications
4–20 mA, HART and Modbus RTU / RS485
Process connection
Flanged process connection
Process temperature
−200 to +300 °C
Approvals / Protection
ATEX / IECEx, up to IP67
Technical Specifications
| Nominal size | DN25 measuring tube; DN25 flange end connection |
|---|---|
| Repeatability | ±0.05 to ±0.25 % of reading depending on selected grade |
| Max. working pressure | up to 100 bar depending on selected pressure rating (40 or 100 bar) |
| Ambient temperature | −30 to +60 °C or −40 to +60 °C depending on transmitter version |
| Environmental / enclosure rating | Sensor and transmitter enclosures rated to IP65/IP67 |
| Power supply | Universal power supply 85 to 265 V AC or 12 to 24 V DC |
Key Features
- Measures mass flow, density and temperature directly from one DN25 Coriolis sensor.
- Reads to 12,000 kg/h with 4–20 mA, HART and Modbus RTU outputs.
- DN25 flanged connections rated to 40 or 100 bar with accuracy from ±0.1 % of reading.
Typical Applications
- Chemical processing - reactor feeds
- Oil and gas - additive and blending skids on mid-size lines
- Food and beverage - syrups
- Power and utilities - treatment chemicals and process liquids
- General industrial