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780S-UHP Ultra High Purity Immersible Thermal Gas Mass Flow Meter
Brand: Sierra InstrumentsSierra Instruments Ultra high purity (UHP) 780S immersible thermal 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 to 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 optional 2 x 12 LCD display The programmable transmitter is easily configured via an RS-232 communication port and Sierra’s Smart Interface software, or via the display and magnetic switches on the instruments display.
The 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 performance and calibration.
The 780S has a built-in flow conditioning 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.
Features- The Ultra high purity meters are constructed of 316L electro-polished stainless-steel with a 7 to 10 Ra (0.18 to 0.25 Ra (μm)) interior finish
- Measures mass flow directly, separate temperature or pressure inputs required
- Built-in flow conditioner which eliminates velocity-profile distortions caused by upstream disturbances
- 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
- Supports Modbus, Profibus DP, HART and Foundation Fieldbus
Specifications
Brand
Approvals & Certifications
- ATEX II 2 GD Ex d IIC T6 to T2, IP66 T70° C to T280° C
- CE
- CSA Explosion-proof for Class I, Div. 1, Groups B, C, D
- FM Explosion-proof for Class I, Div. 1, Groups B, C, D, Dust-Ignition-proof for Class II, III, Div. 1, Groups E, F, G
- PED
Enclosure, Body Material
- Powder-Coated Cast Aluminum
Environmental Protection
- IP65
- IP66 - Hazardous Area Location Enclosure
- NEMA 4X
NACE & NIST
- NACE Certificate for Sour Gas
Tube Connection
- 1” O.D. Tube
- 1/2” O.D. Tube
- 1-1/2” O.D. Tube
- 2” O.D. Tube
- 3” O.D. Tube
- 3/8” O.D. Tube
- 4” O.D. Tube
VCR / VCO Connection
- 1” VCR Male
- 1/2” VCR Female
- 3/8” VCR Female
Welded Connection
- 1” Butt Weld End
- 1/2” Butt Weld End
- 1-1/2” Butt Weld End
- 2” Butt Weld End
- 3” Butt Weld End
- 3/8” Butt Weld End
- 4” Butt Weld End
Wetted Materials
- 316L Stainless Steel with 7 to 10 Ra Internal Finish