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Rosemount-628 Toxic Gas Sensor

Rosemount™ 628 Universal Gas Sensor

Product Description

Rosemount 628 Sensors detect combustible or toxic gases. These intrinsically safe Modules are compatible with the Rosemount 928 Wireless Gas detector. Toxic gas sensors incorporate industry-standard technology that is used in conventional wired gas detectors to bring consistent toxic gas sensing to challenging and remote locations. Combustible gas sensors use Micro-Electro-Mechanical Systems (MEMS) technology to classify and detect flammable gas, providing accurate results without use of calibration adjustments

Specifications

Operating Temperature
H2S: -40 °F to +122 °F (-40 °C to +50 °C )
O2 Depletion: -22 °F to +122 °F (-30 °C to +50 °C)
CO: -22 °F to +122 °F (-30 °C to +50 °C)
Accuracy
H2S: ±3 ppm or 10% of reading, whichever is greater
O2 Depletion: Within ±0.5% of oxygen content of supply gas
CO: ±6 ppm or 10% of reading, whichever is greater
Time Constant / Response
H2S: T90 < 45 seconds
O2 Depletion: T90 < 15 seconds
CO: T90 < 29 seconds
Detection Range
H2S: Gas Concentration Level 0-100 ppm range
O2 Depletion: Gas Concentration Level 0-25% by volume
CO: Gas Concentration Level 0-1,000 ppm range
Certifications/Approvals
Intrinsically Safe, CSA Div 1 ANSI/ISA 92.00-2010 (R2015), ATEX/IECEx Zone 0

Features

  • Hot-swappable electrochemical sensor module with end-of-life diagnostics can be installed in the field without tools
  • Intrinsically safe sensor assembly consists of an electrochemical sensor element mounted in a rugged polymer sensor module
  • WirelessHART® technology is secure, cost-effective and delivers >99% data reliability

Documents & Drawings

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