Selection guide for gas flowmeters

Gas ultrasonic flow meter selection guide

Overview

А - Autonomous power supply 
E - External power supply   

No. of measurement channels
X – Number of channels of measurement
                               0 - Flanged section with EATs
                               1 – Clamp-on stationary EATs
                               2 – hot-tapped installation of EATs in pipeline wall
                               3 – Customer specific applications
                               P – portable version
                                               x – number of EAT pairs

Process pressure
               L – up-to 16 bar
               N – up-to 63 bar
               S – up-to 100 bar
               H – up-to 160 bar
               O – Customer specific version

Factory Calibration
               A – on air
               G – on natural gas
               W – without factory calibration

Installation data
               DNxxxx – Pipe nominal diameter, mm

Process connection
               N – no flanges, pipewall installed sensors
               D – Flanges DIN
                               xxxx – PN, Bar
               A – Flanges ANSI
                               xxxx – pressure class
               O – Customer specific

Ambient temperature
               L - Low temperature version (-60 …. +40 deg C)
               S - Standard version (-30 …. +55 deg C)
               H - High temperature version (-30 …. +70 deg C)

Electronics block
               I – integrally mounted electronics block with display
               W – Electronic junction box without display

Output
               S – 2 pulse outputs (up-to 5 kHz); 1 RS485/232
               O – 1 passive analogue output; 2 pulse outputs (up-to 5 kHz); 1 RS485/232

Hazardous area certification
               I – Exi certification (ATEX)
               W – without certification (for non hazardous applications)

Power supply
     A – 220 VAC power supply system with intrinsic barriers and
                       communication interface
     D – 24 VDC power supply system with intrinsic barriers and
                       communication interface
                X – Customer specific
                W – without power supply, customer to provide required power input

Accessories (optional)
                F – Meeting flanges with bolts and studs to be supplied with flow meter

Accessories (optional)
                R – straight pipe-runs to be supplied with flow meter

Accessories (optional)
                C – Flow conditioner to be supplied with flow meter

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