Volume a. c., volumetric flow a. c., gas velocity, volume s. c. (*), volume flow under s.c. (*) (*) additional function included with integrated volume correction
State-of-the-art technology for maximum measurement accuracy: The FLOWSIC550 ultrasonic compact gas flowmeter ensures highly accurate billing of low volume flows in high-pressure networks – a perfect complement to the FLOWSIC500. It is overload-proof, accurate and is monitored by an intelligent diagnostics system. FLOWSIC550 can be easily integrated into existing measuring stations. When used in transfer and measuring stations, FLOWSIC550 ensures a continuous and blockage-free gas supply.
Gas Measurement of low volume applications at high pressures
Custody transfer: gas distribution, storage, and transmission systems
Town border stations and city gate stations
Device properties:
Diagnostics and permanent operational self-monitoring
Durable and reliable without moving parts
Compact meter installations
Integrated volume correction
Battery or intrinsically safe power supply
Bluetooth Low Energy (BLE)
Benefits
Ultimate measurement certainty and safety of continuous gas supply
Simple installation, replacement of turbine gas meters
Reduction of installation costs due to integrated volume correction
Easy Commissioning and data reading via FLOWgateTM (PC and App)
Minimal operating costs due to being nearly maintenance-free
Reliable even when the gas flow fluctuates (on/off applications)
Volume a. c., volumetric flow a. c., gas velocity, volume s. c. (*), volume flow under s.c. (*) (*) additional function included with integrated volume correction
Measuring Medium
Natural gas (dry, odorized), air
Repeatability
≤ 0.1 %
Accuracy
Qmin up to Qmax ≤ ± 1 %; Accuracy class 1; typical error limits
Qmin up to 0.1 Qmax ≤ ± 2 %; Accuracy class 1; maximum allowed error limits
0.1 Qmax up to Qmax ≤ ± 1 %; Accuracy class 1; maximum allowed error limits After high pressure flow calibration: ±0.2 % at test pressure; otherwise ±0.5 %
Medium temperature range
–40 °C ... +70 °C
Operating pressure range
ANSI300 (ASME B16.5) ≤ 48.7 bar (g); for –40 ... +70°C
ANSI600 (ASME B16.5) ≤ 97.4 bar (g); for –40 ... +70°C
PN40 (EN 1092-1) ≤ 40 bar (g); for –40 ... +70°C
PN63 (EN 1092-1) ≤ 63 bar (g); for –40 ... +70°C
Nominal pipe size
DN 50 (2") … DN 150 (6")
Metrological approvals and certificates
MID: 2014/32/EU OIML R 137-1&2:2012 EN 12405: 2010 (for integrated volume correction) AGA 9, 2022
Hazardous area approvals
IECEx: Ex ia [ia Ga] T4 IIB Gb
ATEX: II 2 (1)G Ex ia [ia Ga] T4 IIB Gb
NEC/CEC (US/CA): Class I Division 1, Groups C, D T4 Ex ia [ia Ga] IIB T4 Gb Class I, Zone 1 AEx ia [ia Ga] IIB T4 Gb
Digital Outputs
2x Pulse and Status (HF with fmax = 2kHz, LF with fmax = 10 Hz)
