SteelMass 640S Mass Flow Meter
SierraInstruments’ultrahighpurity(UHP)model780S gas mass flow meters are the instruments of choice for gas distribution service in semiconductor fabs, pharmaceutical production and other ultra-clean processes. UHP meters are constructed of 316L electro-polished, stainless-steel with a 7-10 Ra interior finish.
The versatile microprocessor-based transmitter integrates the functions of flow-range adjustment, meter validation and diagnostics in either a probe-mounted or remote housing. Mass flow rate and totalized flow, as well as other configuration variables, are displayed on the meter’s optional 2 x 12 LCD display The programmable transmitter is easily configured via RS-232 communication port and Sierra’s Smart InterfaceTM software, or via the display and magnetic switches on the instrument panel.
Model 780S smart electronics allow you to easily configure the following performance parameters: flow range, reset totalizer, alarm settings, time response, low flow cut-off and a calibration correction factor. The smart interface also allows for field validation of flow meter perfomance and calibration.
Model 780S has a built-in flow conditioner which eliminates velocity-profile distortions caused by upstream disturbances.
The meter is FM, CSA, ATEX and PED approved for operation in hazardous areas and is available with a variety of input-power, output-signal, mounting and packaging options.
- Measures mass flow directly,no separate temperature or pressure inputs required
- Built-in flow conditioner which eliminates velocity-profile distortions causedbyupstreamdisturbances
- The Ultra High Purity meters are constructed of 316L electro-polished, stainless-steel with a 7-10 Ra interior finish
- Field adjustment of critical flow meter settings via on-board switches or Smart InterfaceTM (RS 232)
- Field validation of flow meter calibration
- Outstanding rangeability
- One-second response to changes in flow rate
- FM, CSA and ATEX certified for hazardous areas
- CE approved
- PED available