Description
Users are often faced with the task of implementing a flow measurement with demanding requirements and under nonideal conditions. For example, steam flow measurement with very short pipe straight runs that require high accuracy. For such applications most other measuring principles are not suitable.
The AccuFlo® HMP was specifically developed for such applications. It meets the high accuracy requirements for precision mass flow for billing and transfer measurements. Plus, it can withstand extreme mechanical loads. Due to the integration of the flow profile with a quick response time, it can be used for extremely short inlet and outlet straight pipe runs.
Thanks to its "plug-and-play" design, one can easily install and commission it.
The unit is traceable to international standards and offers operational reliability based on a water calibration certificate from an accredited laboratory (by an ISO 17025 laboratory or an office of legal metrology). Disputes about quality of energy, mass accounts and balances are a thing of the past.
The AccuFlo® HMP offers practical advantages wherever
- Accurate and traceable measurements outside of the jurisdiction of the measurement instrument directive are required (e.g. steam measurements),
- Very high measurement accuracy is required ,
- Very short straight pipe runs are available,
- A „Plug-and-Play“ solution is preferred,
- Reliable measurement results are required even under harsh operating conditions,
- The measurement needs to be insensitive against pipe vibrations,
Technical specifications
| Measured quantity: | Flow (as volume flow, mass flow, standardized volume flow, transferred heat or velocity) Absolute Pressure Temperature |
| Measured fluid: | Natural Gas Technical Gases (Air, Nitrogen, others, water saturated or corrosive,) low viscosity liquids (also nonconductive) Steam (saturated and superheated) |
| Temperature range: | Standard: −50 … 450 °C, optional up to 500 °C |
| Pressure range: | Standard: PN10 to PN 100 (AISI Class 150 to AISI Class 600) Higher pressure ratings upon request |
| Diameter range: | DN 25 to DN 300 1" to 12" (larger diameters upon request) |
| Required straight inlet and outlet pipe runs: | for 90° elbows: 2×D inlet, 1×D outlet |
| Material: | Flow sensor: 1.4404 (AISI 316L) or 1.5415 (ASTM A335 Grade P1/F1) Pipe section: 1.4404 (AISI 316L) or 1.5415 (ASTM A182 / A335 Grade P1/F1) |
| Measurement range: | Standard: 1:15 Optional 1:50 (depending on application) |
| Error limit: | Typically ±0,3 % of mass flow in calibrated range for gases and liquids Typically ±0,5 % of mass flow in calibrated range for steam |
| Flow computer: | For panel or wall mounting TFT color display with touch screen 2 analog outputs (0)4 ... 20 mA 3 switching outputs (freely selectable function incl. alarm) Fieldbuses (Modbus; Profibus/Profinet in preparation) Auxiliary power 90 ... 250 V AC or 18 ... 36 V DC |