- HPI flow meter
- Interface Detection
- Technical Data
FLUXUS HPI Series Flow MeterBy combining the attributes of FLEXIM’s highly accurate and reliable non-intrusive ultrasonic flow measurement with temperature and, where necessary, pressure inputs, the integrated HPI flow meter is the ideal solution for hydrocarbon flow metering applications, where the fluid viscosity can significantly vary over the temperature range.
The internal HPI flow computer allows the meter to report:
Operational and standard (net) volume and mass flow
Density, API number and Specific Gravity
Sonic ID (for Interface Detection)
Liquid ID (for Fluid Identification)
Leak detection (data source based on multiple HPI flow meters)
FLEXIM’s HPI flow meter eliminates measurement errors associated with multiple devices at various places and provides a complete turn-key solution to your flow metering needs.
Cutting-edge Features of FLEXIM's ultrasonic non-intrusive flow measurement
- Automatic Fluid Identification and Interface Detection
- Bi-directional flow metering
- Superior temperature stability - No zero drift
- Certified and traceable Multi-Point wet flow calibration
- Robust “Fit for Purpose” Flexibility and Stability using PERMALOK mounting fixtures
- Operational capabilities from –40 °C up to +200 °C
- Extremely high turndown range - capability of measuring at very low flow rates
Varying conditions and changing media –
The FLUXUS HPI Multi-Product Flow Meter detects it all
The FLUXUS HPI Multi-Product flow meter is your choice when different fluids are passing successively through the pipe and reliable fluid recognition is needed.
Up to 13 customized fluids can be stored in the HPI database, allowing the Multi-Product meter to identify the respective fluid unambiguously by its Liquid ID.
Using its associated temperature and – where necessary – pressure inputs, the integrated flow computer then carries out a standard volume and mass flow compensation in accordance with ASTM D1250, ASTM D4311 or GPA TP25.
The FLUXUS Multi-Product meter features the:
Detection of the respective fluid and displays its name,
Signals an interface change,
Measures the standard volume and mass flow rate, as well as the
API number, specific gravity and
density at base conditions.
It also includes the full functional range of all FLUXUS ultrasonic flowmeters:
Totalizers, dual-beam operation, signal amplitude measurement as well as diagnostic functions by means of FLEXIM’s FluxData PC software.
FLUXUS HPI Interface Detection Flow Meter
Even when the types of fluids passing through a pipe are not known, the FLUXUS HPI flow meter can inform you about interface changes, while permanently measuring volume flow.
The measured sound speed is compensated for the temperature according to a curve fitting the mean behavior of a set of different liquids. The sound speed at base conditions, or Sonic ID, is indicative of the currently sensed fluid.
In order to provide easier detection of interfaces, the slope of the Sonic ID over time is calculated and shows a peak at each batch interface, which can help to trigger valves or vents in storage and pipeline systems.
The FLUXUS HPI Interface-Detection Flow Meter is suited best for a reliable and accurate detection of Interface changes when different fluids are successively passing through a pipe. In addition, it measures the operational volume flow rate and derives the mass flow as well as the liquid’s density and viscosity.
One Pipe, one media -
The FLUXUS HPI Single Product Flow Meter suits you best
When the calculation of standard volume flow according to ASTM 1250, ASTM 4311 or GPA TP25 is necessary for only one product, the FLUXUS HPI Single-Product flow meter is the economic alternative.
Of course it shares the high precision and reliability of the HPI Multi-Product meter and thus makes it an ideal system for leak detection and proper pipeline management when connected to the SCADA system.
The FLUXUS HPI Single Product flow meter features the measurement of:
Standard Volume and Mass Flow
Base Density, API number and Specific Gravity
|Technical Data FLUXUS HPI Flow Meter|
Flow metering of hydrocarbon products
Ultrasonic clamp-on flow measurement acc. to
the transit- time principle
(Temperature measurement with clamp-on temperature probes (if used))
*(exact output variable depending
on the HPI model configuration)
Operational and standard volume and mass flow,
Flow velocity, Sound speed, Customized Fluid Identification
(Liquid ID), Automatic Interface Detection (Sonic ID, Sonic ID Slope), Base Density, API# and Specific Gravity
|Flow velocity:||0.03 to >75 ft/sec / 0.01 to 25 m/s|
|Repeatability:||0.15% of reading +/- 0.03 ft/s / 0.15% of reading +/- 0.01 m/s|
NIST/PSB traceable wet flow*:
With field calibration**:
+/- 1% of reading +/- 0.03 ft/s / 0.01 m/s
+/- 0.5% of reading +/- 0.03 ft/s / 0.01 m/s
|Gaseous & solid content:||<10%|
|Integrated data logger:||
>100 000 meas. values - stores about 2 months of data at
a 15 min storage rate
|Outputs types:||Modbus RTU, HART analog 4 ... 20 mA, 0 ... 10 V, pulse , other protocols available|
|Output data:||All quantities of measurement|
* for measurement acc. to the transit time difference principle,
under reference conditions and at v > 0.03 ft/s / 0.01 m/s
** reference uncertainty <0.2%