Endress+Hauser’s CNGmass Coriolis flowmeter series is approved by NTEP in the United States and five other international standards organizations for custody transfer of compressed natural gas (CNG) and for fueling vehicles with CNG. Available in three sizes from 3/8 inch to one inch, the meter measures mass flow up to 330 lb/min (150 kg/min) at fluid temperatures up to 257 F (125 C) and pressures to 5,080 PSI (350 bar). The instrument measures direct mass or corrected volume flow with 0.5 percent accuracy to meet custody standards. It also outputs temperature and density. With a balanced two-tube design, it is insensitive to pipeline vibrations and can be installed without taking inlet or outlet runs into consideration. The CNGmass flowmeter carries approvals for use in hazardous areas from UL, ATEX, FM, cCSAus, and NEPSI. The transmitter housing is powder-coated aluminium, the sensor housing is acid- and alkali-resistant 304 stainless steel, and all process connections are 316 or 316L stainless steel. A multi-color LED on the transmitter housing indicates, by various colors and flashing intervals, the status of the instrument and the process conditions. Output options for the CNGmass 8DF/8FF include pulse/frequency signal, 4-20mA current with HART, 30Vdc status output for fault or power supply failure, or MODBUS RS485 output in accordance with the EIA/TIA-485 standard designed for custody-transfer applications in dispensing or fueling in the compressed natural gas industry. – us.endress.com