- Optimized for bulk ultra high purity (UHP) gas custody transfer
- Direct mass flow measurement
- No moving parts, 100:1 turndown, low pressure drop
- Reduce straight-run requirements with built-in flow conditioning
- Validate in the field for easy in-situ calibration
- The 780S is North America's #1 selling inline thermal mass flow meter (2009 Flow Research, Boston MA). Our ultra high purity 780S-UHP is the industry-choice for bulk gas distribution service in semiconductor fabs, in pharmaceutical production and other ultra-clean processes. Real-time monitoring of gas usage provides reliable information on consumption and usage patterns in the manufacturing area and may be used for both billing and diagnostic purposes.
Thông số kỹ thuật
- Accuracy: +/- 1% of reading plus +/- 0.5% of full scale
- Repeatability: +/- 0.2% of full scale
- Pipe sizes from 0.5 to 12 inches (1.27 to 30.4 cm)
- Flow range to 20,000 sfpm (100 smps)
- Measure all inert gases and all non-condensing clean gases
- Flammable gases: methane, propane, hydrogen, digester gas, natural gas
- Corrosive gases compatible with 316L stainless steel
- Turndown: 100:1
- Temperature:
+ Operating: -40°F to 350°F (-40°C to 200°C)
+ Ambient: -40°F to 120°F (-40°C to 50°C)
- High temperature (HT) option to 750°F (400°C)
- Response time is one second to achieve 63% of final value
- Power supply:
+ 18 to 30 VDC (regulated), 625 mA maximum
+ 100 to 240 VAC, 50/60 Hz, 15 watts maximum
- Electropolished 7-10 Ra 316 stainless steel construction
- Output signals: RS-232, 0 to 5 VDC, 0 to 10 VDC, 4 to 20 mA
- User definable pulse output for totalized flow
- Digital communications: Foundation Fieldbus, HART, Modbus RTU, and Profibus DP
- Hazardous-Area Location Enclosure (IP66) and NEMA 4X (IP65)
- Approvals:
+ FM (USA) Class I, Div I, Groups B,C,D
+ CSA and CRN (Canada)
+ ATEX
+ CE
+ PED (EU)
+ GOST R (Russian Federation)
+ Chinese Pattern Approval (China)