- Model 760S - Chlorine Gas Mass Flow Meters

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The ChlorineTrak 760S has been specifically designed to perform as an accurate and cost-effective mass flow measurement solution for chlorine injection processes found in typical waste-water treatment applications. Given the corrosive nature of chlorine gas (particularly in the presence of moisture), extremely expensive Hastelloy was needed for main flow body construction.  And this drove the cost up thousands.  Finding a more economical solution was the only answer.

To respond to this challenge, Sierra innovated a flow body manufactured from Kynar polyvinylidene fluoride resin (PVDF). This lower-cost material:

  • Offers excellent corrosion and chemical resistance at both ambient and elevated temperatures
  • Is inherently stable and mechanically tough
  • Is abrasion and flame resistant

Operating Principal: Thermal dispersion technology for direct mass flow measurement featuring no pressure or temperature compensation needed, no moving parts, low pressure drop, high turndown.

  • Cost-effective solution for chlorine injection market
  • Offers corrosion-resistant Kynar flow body at economical price
  • Rugged, no drift DrySense Hastelloy sensor
  • Validate in the field
  • Backed by lifetime sensor warranty

  • Tough chlorine applications
  • Economical price (3 to 4 times less than full Hastelloy versions)
  • Features our patented zero drift DrySense™ velocity sensor
  • Lifetime warranty on sensor
  • Sierra's state-of-the-art ISO 9000 closed-loop calibration facility for best accuracy
  • Very low pressure drop
  • No moving parts
  • Flow-range adjustment, and validation and diagnostics
  • Dual-range capability
  • Field validation/configuration to ensure operating performance
  • Field rangeability
  • Flow totalizer and alarms
  • Large LCD display and push-button interface, remote enclosure mounting available
  • An insertion version for pipes/ducts up to 72' (2M) available - Model 640S
  • Free computer interface software: Download now...
  • Digital communications: Foundation FieldbusHARTModbus RTU, and Profibus DP

  • Optimized for dry chlorine gas service, can measure other corrosives
  • Accuracy: +/- 5% of reading
  • Repeatability: +/- 0.2% of full scale
  • Flow body: Lower-cost Kynar® polyvinylidene fluoride resin (PVDF) from 1 to 4 inches (2.5 to 10 cm)
  • Sensor: Hastelloy® C with 6 inch Hastelloy® C-127
  • Flow range to 20,000 sfpm (100 smps)
  • 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)
  • 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
    • 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)

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