Twin Turbine Gas Meter ETTM
The ETTM (Electronic Twin Turbine Meter) is suitable for natural gas and various non-corrosive gases. The meter consists of an aluminum cartridge with two independent flow conditioners and turbine wheels, each calibrated and NMi approved for fiscal use.
The performance of the two turbine wheels is continuously compared to each other by the diagnostics. This is similar to the serial comparison of two separate meters, a process commonly applied in European border stations.
ETTM with a SFC3000 Flow computer as remote index, gives full real time diagnostics and alarming as well as absolute accuracy by auto corrections such as curve linearization.
ETTM with an electronic Index also gives significant diagnostics and alarming functions. Due to the unpowered counting system (PCS), battery life time of the index is 15 years with just one AA cell. Replacing the battery will not cause any loss of data.
- KEY FEATURES
- Flow rate: 32 – 6500 m3/h (100 – 23,000 cuft/hr)
- DN150 – DN300
- Flanges: DIN PN 10 to PN 100, ANSI 150 to ANSI 600
- Installation Length 3 x D
- MAIN BENEFITS
- Both turbine wheels are MID approved by NMi
- Diagnostics (remote re-calibration)
- Superior accuracy, better than 0.15% of reading (SFC3000 index)
- Only 5 x D straight Inlet for severe perturbations