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All Categories > By Primary Gas to be Measured > Hydrogen Sulfide Analyzers (H2S) > Wall-mounted Air Monitors > Continuous Hydrogen Sulfide Alarm Monitors - 550 Series > Item # Model 550D  


Item # Model 550D, Hydrogen Sulfide Alarm Monitor, diffusion sensor

Designed to monitor ambient hydrogen sulfide (H2S) near industrial processes such as biogas & syngas production, landfills, in confined spaces, or any other area where H2S may be present.

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Specifications  · Applications  · Features  · Options  · Calibration  · Unique Applications

Specifications

Method of Detection
Disposable electrochemical cell

Ranges Available
0-20 PPM standard

Resolution
1 PPM

Accuracy & Repeatability
±1% of full scale or 2 PPM, which ever is higher

Drift
Less than 1% of full scale or 2 PPM per week, whichever is greater

Response Time (T-90)
Less than 15 seconds to 90% step change

Ambient Temperature Range
32 to 120°F (0 to 40°C), may be operated at lower temperature with auxiliary heater

Linearity
±1% of full scale or 1 PPM, which ever is higher

Size & Weight
14" H x 12" W x 8" D (35.6 x 30.5 x 20.3 cm) @ 18 lbs. (8.2 kg)

Power
115 VAC, 60 Hz
220 VAC, 50 Hz

Output Options
0-1 VDC
4-20 mA


Applications
    Designed for the continuous, including remote, monitoring of hydrogen sulfide(H2S) in ambient air.


Features
  • Standard electrochemical cell
  • Instant warm-up, no wait
  • Bright digital readout - no reading interpretation errors.
  • Easy use and calibrate
  • Easy to maintain modular layout
  • 4-20mA output signal for recording
  • NEMA 12 fiberglass enclosure is standard


Options
  • 'Fail Safe' alarms available
  • Strobe light
  • NEMA 4 or 4X enclosures
  • Cold weather package for operation to -5°F (-20°C)


Calibration
  • Ambient air for O2 and to zero all other gases
  • Analyzed calibration gas with representative concentrations for span of all other gases


Unique Applications
    All Nova analyzers are built using proven technologies and techniques. If this product does not suit your application, please contact Nova. In many cases, we are able to build an analyzer specific to your needs.



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