FLOWSIC550
FLOWSIC550

State-of-the-art technology for maximum measurement accuracy: The new FLOWSIC550 ultrasonic compact gas flow meter from SICK ensures highly accurate billing of low volume flows in high-pressure networks – a perfect complement to the FLOWSIC500. Thanks to the absence of mechanical moving parts, the FLOWSIC550 is rugged, reliable, and maintenance-free – allowing for a significant reduction in operating costs. It is overload-proof, accurate and is monitored by an intelligent diagnostics system. FLOWSIC550 can be easily integrated into existing measuring stations. FLOWSIC550 works either in mains operation or is self-sufficient in terms of energy. When used in transfer and measuring stations, FLOWSIC550 ensures a continuous and blockage-free gas supply.

At a glanceRugged and time-proven ultrasound technologyDiagnostics and permanent operational self-monitoringDurable and reliable without moving partsCompact meter installationsIntegrated volume correctionBattery or intrinsically safe power supplyBluetooth Low Energy (BLE)Your benefitsUltimate measurement certainty and safety of continuous gas supplySimple installation, replacement of turbine gas metersReduction of installation costs due to integrated volume correctionEasy Commissioning and data reading via FLOWgateTM (PC and App)Minimal operating costs due to being nearly maintenance-freeReliable even when the gas flow fluctuates (on/off applications)Self-sufficient operation possible

Measured values	Volume a. c., volumetric flow a. c., gas velocity, volume s. c. (*), volume flow under s.c. (*) (*) additional function included with integrated volume correction
Measurement principle	Ultrasonic transit time difference measurement
Measuring medium	Natural gas (dry, odorized), air
Measuring ranges DN50 | 2" 2.5 m³/h ... 160 m³/h, @pmin 0,8 bar(a) DN80 | 3" 4 m³/h ... 400 m³/h, @pmin 0,8 bar(a) DN100 | 4" 22 m³/h ... 650 m³/h, @pmin 3 bar(a) DN100 | 4" 6.5 m³/h ... 650 m³/h, @pmin 10 bar(a) DN150 | 6" 53 m³/h ... 1,600 m³/h, @pmin 3 bar(a) DN150 | 6" 16 m³/h ... 1,600 m³/h, @pmin 10 bar(a)
Reproducibility	≤ 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 %
Diagnostics functions	Permanent monitoring of measured values
Gas temperature –40 °C ... +70 °C
Operating pressure 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
Ambient temperature –40 °C ... +70 °C
Flange type	Raised Face Stock Finish
Conformities	MID: 2014/32/EU OIML R 137-1&2:2012 EN 12405: 2010 (for integrated volume correction) AGA 9, 2022
Ex-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
Enclosure rating IP66
Digital outputs	2x Pulse and Status (HF with fmax = 2kHz, LF with fmax = 10 Hz) 2x RS485, external powered Encoder
Modbus ✔ , ✔ Remark Modbus RTU Modbus ASCII
USB ✔ Remark Wired M12/USB Adapter or wireless adapter
Dimensions (W x H x D)	See dimensional drawings
Weight	DN50 | 2": 26 kg DN80 | 3": 46 kg DN100 | 4": 87 kg DN150 | 6": 207 kg
Material in contact with media	Low temperature carbon steel
Mounting	Horizontal or vertical installation Mild disturbances: with 3D straight inlet and 2D straight outlet piping; Severe disturbances: with 5D straight inlet and 2D straight outlet piping
Electrical connection Voltage Intrinsically safe supply: 8 ... 16 V DC Max. 50 mA Battery powered, life time 5 years

As Mnelko, we are a reliable partner in industrial automation solutions, offering high-quality and innovative products with a wide product range to meet all the needs of your business. Our product portfolio consists of solutions designed based on the principles of high performance, durability, and efficiency to support modern industrial processes.
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