Measurement & Control Measurement & Control
Connectivity & Communication Connectivity & Communication
Insights & Action Insights & Action
Collaboration & Support Collaboration & Support
{{title}}
Request a quote {{contactOpenText}}
Contact a Customer Care Representative

We’ll get back to you within 24 hours or the following business day.

Prefer to call?
Customer Care representatives are available by phone Monday–Friday, from 9am–5pm CST.

(800) 616–3837

Contact a Customer Care Representative

We’ll get back to you within 24 hours or the following business day.

Prefer to call?
Customer Care representatives are available by phone Monday–Friday, from 9am–5pm CST.

(800) 616–3837

Q45S Wet H2S Gas Detector

The Q45S Wet H2S Gas Detector offers continuous monitoring of Hydrogen Sulfide in both inlet and discharge air, where condensing humidity conditions are normal. The Q45S is an ideal solution for water and wastewater treatment applications.

Showing units in {{labelText}}
  • Parameters
    Hydrogen Sulfide
    Hydrogen Sulfide
Request a quote

Continuous, Reliable H2S Monitoring in Wet Conditions

Odor control in wastewater treatment plants and sewage collection systems often requires the use of scrubber systems. Many of these scrubbers employ a wet process using a hypochlorite solution to remove hydrogen sulfide (H2S) from air streams before discharge. Monitoring the hydrogen sulfide in both inlet and discharge air has presented problems for standard sulfide gas sensors.

The Q45S Wet H2S gas monitor is a new type of gas sensor technology that allows continuous monitoring of hydrogen sulfide in both inlet and discharge air, where condensing humidity conditions are normal.

Measurements may be either at the inlet to scrubber systems where gas concentrations can run as high as 200 PPM or at the outlet, where gas concentrations are ideally down below 0.5 PPM. Special gas sensor configurations are available for either duct insertion or flow cell use. As Q45S Wet H2S Gas Detector systems are often monitoring gas streams with condensing levels of water vapor, provision has been made for eliminating water droplets from the gas sensor that could present a barrier to the diffusion of hydrogen sulfide into the sensor. An optional air-purge system controlled by the gas transmitter will periodically deliver a blast of air across the critical sensor surfaces to remove water droplets. This system ensures a clear gas diffusion path to the sensor and reliable measurements continuously.

Features

  • Special wet H2S sensors designed to operate in condensing gas streams
  • Automatic sensor air purge
  • Two internal alarm relays
  • Internal data logger that stores up to 10 days of data at 1-minute storage intervals

Market Applications

  • Environmental Monitoring

    ​Environmental monitoring solutions are designed to protect the world’s most precious resource. Instruments are deployable throughout the network to measure a variety of parameters, collect baseline data and deliver a deeper understanding of trends that enable early event detection and response.

    View Solutions
  • Wastewater Treatment

    Wastewater treatment facilities feature complex operational processes involving a wide range of flow measurement, water quality monitoring and toxic gas detection solutions, designed to conserve water, increase regulatory compliance and safeguard water quality, people and the environment. From individual monitors to multiparameter measurement, our versatile solutions deliver continuous and proactive monitoring for early event detection, odor control, pollution prevention, chemical management and toxic gas detection.

    View Solutions
  • Drinking Water Treatment

    Drinking water treatment facilities have the critical job of producing a safe supply of high-quality drinking water. Complex operational processes demand the highest flow meter accuracy and reliability, as well as long-term stability and a low cost of ownership. Badger Meter water treatment solutions meet the challenge, assisting utility customers with increasing compliance levels, protecting treatment assets and providing opportunities for process optimization using predictive analytics.

    View Solutions
  • Industrial Pre-Treatment

    Industrial pre-treatment is a crucial stage in the water cycle, occurring before wastewater enters municipal treatment facilities. It involves the removal of contaminants, pollutants, and other harmful substances from industrial wastewater streams to meet regulatory standards and protect the environment. This process typically includes physical, chemical, and biological treatment methods tailored to specific industrial processes and pollutants. By effectively pre-treating industrial wastewater, we can safeguard water quality, prevent damage to treatment infrastructure, and ensure the overall health of ecosystems downstream.

    View Solutions

Product Documentation

Filter Documents
Filtered by:
Remove all filters
Document Type
{{isTruncated ? openText : closeText}}

Select up to 5 to share via email

Email Selected Documents ({{data.emailDocs.length}})

You may only share up to (5) via email. Please remove some.

Displaying {{pageRange}} of {{data.totalResults}}

Product Data Sheets | English ATi Model Q45S
Specifications | English Q45S Wet H2S Gas Monitor
Specifications | English Model Q45 Wet H2S System

We’re sorry, your request didn’t return any documents.

{{data.didYouMean[0]}}? Please check your search term.

Please try again or contact us

Select up to 5 to share via email

Email Selected Documents ({{data.emailDocs.length}})

You may only share up to (5) via email. Please remove some.

Displaying {{pageRange}} of {{data.totalResults}}

Prev Page
Next Page
We're here to help
Contact a Customer Care Representative

We’ll get back to you within 24 hours or the following business day.

Prefer to call?
Customer Care representatives are available by phone Monday–Friday, from 9am–5pm CST.

(800) 616–3837