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Cerex Hound Series

Cerex Hound analyzers are the solution for your immediate response applications

With over a decade of use by emergency personnel, government agencies, and industry, the UV HOUND and its smaller counterpart, the MICRO HOUND, are proven, highly dependable analyzers for the accurate and sensitive monitoring of single gases and mixtures.

The Hound series is a collection of portable point UV-DOAS analyzers recognized for their accuracy in industrial hygiene, leak detection, HAZMAT first response, environment contamination & remediation, and portable indoor air safety monitoring.

  • Part-per-billion (ppb) level detection limits
    (1.0 ppb for Benzene)
  • Simultaneous multi-gas capability
  • Hours of battery life
  • Greater performance than electrochemical and PID technology at a low cost
(PDF 3.9MB) Download Brochure
Home » Hound Series

Cerex Hound Series

Cerex Hound analyzers are the solution for your immediate response applications

With over a decade of use by emergency personnel, government agencies, and industry, the UV HOUND and its smaller counterpart, the MICRO HOUND, are proven, highly dependable analyzers for the accurate and sensitive monitoring of single gases and mixtures.

The Hound series is a collection of portable point UV-DOAS analyzers recognized for their accuracy in industrial hygiene, leak detection, HAZMAT first response, environment contamination & remediation, and portable indoor air safety monitoring.

  • Part-per-billion (ppb) level detection limits
    (1.0 ppb for Benzene)
  • Simultaneous multi-gas capability
  • Hours of battery life
  • Greater performance than electrochemical and PID technology at a low cost
(PDF 1.4MB) Download UV Hound Brochure
Home » Hound Series

Cerex UV Hound Series

0 ppb
minimum detection limits for Benzene
Up to 0
hours battery life*
0 seconds
to output results

* Or continuous operation on AC power

UV Hound

Most sensitive model

This unit offers our lowest detection limits with a standard 17 meter sample path. Depending on your application, the path length may be increased up to 22 meters for a 20% improvement in detection capability.

General

Measurements: 35.75″ x 13.5″ x 5.25″ (90.2cm x 34.3cm x 13.3cm)
Weight: 38.5 lbs (17.46 kg)

Performance Specs

Optical Path Length: 2 – 20 meters Internal Analysis Path
Battery Life: 4 hours standard, up to 14 hours with additional batteries or continuous operation on AC Power

Maintenance

Only three consumables make up the UV Hound. All are field replaceable in under 15 minutes.

  • Sample Intake Filter
  • Enclosure Air Filter
  • UV Source – warranted for 4000 hours of operation, typically exceeds 5000 hours
(PDF) Download UV Hound Brochure

Micro Hound

Most portable model

The smallest of Cerex’s Hound Series analyzers. The Cerex Micro Hound offers continuous parts-per-billion (ppb) level monitoring with a standard 2 meter path length.

General

Measurements: 21.6″ x 17.3″ x 4.9″ (54.9cm x 43.8cm x 12.4cm)
Weight: 28 lbs (12.7 kg)

Performance Specs

Optical Path Length: 2 meters Internal Analysis Path
Battery Life: 4 hours standard, up to 14 hours with additional batteries or continuous operation on AC Power

Maintenance

Only two consumables make up the UV Hound – the Air Intake Filter and UV Source. Both are field replaceable in under 15 minutes.

  • Air Intake Filter
  • UV Source – warranted for 4000 hours of operation, typically exceeds 5000 hours
(PDF) Download Micro Hound Brochure

Versatile Portability

All-in-one package can be carried by side handle or dragged by top handle with wheels (located on bottom of analyzer)

How it Works

Point UV-DOAS Technology

The Cerex UV Hound operates using a process known as point monitoring. Surrounding ambient gases are channeled into the analyzer via a sample hose or attachment. Following this, an internal cell holds the gas sample for analysis.

Next, with UV-DOAS technology, an ultraviolet light passes through the gas sample contained within the cell. Thanks to a physics principle known as the Beer-Lambert Law and Cerex’s proprietary software, the gas sample can be translated into useable data.

Similar to the more expensive FTIR, UV-DOAS offers better detection limits at lower cost without interference from water vapor. Within seconds, any compounds present in the internal cell that are UV spectrum-detectable are identified and quantified according to their absorption from the ultraviolet light. Cerex’s Continuous Monitoring Software (CMS) outputs the data in real-time for instant results. Raw data can be accessed either on the Hound itself, or remotely via phone, tablet, or computer.

The most cost-effective, portable area sampling & leak detection solution

Offering real time identification and quantification of criteria pollutants, the Hound analyzers provide a sensitive yet cost-effective solution in easy to operate, all-in-one packages.

Low maintenance and low detection limits

With only 3 consumables and the capability of simultaneous, single digit, parts-per-billion (ppb) detection levels of multiple compounds, the Hounds are the standard for ambient level detection.

Individual species of prolific hazardous air pollutants

Toxins such as Benzene, Toluene, Ethylbenzene, and Xylenes (BTEX) are known human carcinogens at ambient air levels. Our Hound analyzers are capable of simultaneously detecting these in addition to oxides of Nitrogen (NOx), CAFO emissions such as Ammonia (NH3) and Hydrogen Sulfide (H2S), and other volatile organic compounds (VOC’s) below hazardous levels.

Common Detectable Gases

Ultra Low Detection Limits

The Cerex Hound Series has as low as parts-per-billion minimum detection limits and wide dynamic ranges, allowing earlier and more thorough detection of gases than traditional sensor arrays. In comparison to outdated technologies, Hound series analyzers feature multi-gas monitoring of individual species, lower detection limits, no water vapor interference, inherent calibration and no sensors to poison.

Inherent Calibration

Like all Cerex portable analyzer products, the analyzer may calibrated insitu using calibration gas delivered from a dynamic calibrator or cylinder standard. Routine calibration is unnecessary for proper operation.

Targeted Library for Increased Value and Cost-Effectiveness

Hound series analyzers include one multi-purpose standard library suitable for monitoring of 23 compounds. Custom calibrations are available based on application. Additionally, ancillary sensors can be added to the UV Hound or Micro Hound for detection of other gases not available with UV-DOAS, such as Carbon Dioxide, Carbon Monoxide, Methane, and more.

UV Hound and Micro Hound Common Target Gases

1,3 Butadiene C4H6
Acetaldehyde C2H4O
Acetone CH3COCH3
Acrolein C3H4O
Ammonia NH3
Benzene C6H6
Carbon Disulfide CS2
Chlorine Cl2
Chlorine Dioxide ClO2
Ethyl Benzene C8H10
Formaldehyde CH2O
Hydrogen Sulfide H2S
Isoprene C5H8
Mercury Hg
Naphthalene C10H8
Nitric Oxide NO
Nitrogen Dioxide N2O
Nitrous Acid HNO2
Oxygen O2
Ozone O3
Phenol C6H5OH
Styrene C8H8
Sulfur Dioxide SO2
Toluene C6H5CH3
Trimethylbenzene C9H12
O-Xylene, M-Xylene, P-Xylene C8H10

*NOTE: For detection of gaseous compounds not available within the UV spectrum, we recommend the Cerex AIR SENTRY – an open-path analyzer that uses FTIR (Fourier Transform Infrared).

Software

Results You Can Rely On

Cerex recognizes that detailed gas monitoring results need to be reliable and available quickly to various stakeholders. Consequently, Cerex engineers developed software to accurately detect and display gases within the air, in real-time, from any location.

On a Cerex Hound, a user can see results on the analyzer itself, or remotely via a phone, tablet, or computer anywhere in the world via a virtual connection. GPS and cellular configurations make this possible in isolated environments.

All data is automatically saved in an easy to access .csv file; this feature helps our clients in various ways - from daily use to crucial events such as evidence in court. Early detection translates into quicker response times, reduced environmental impact, decreased plant downtime, and reduced exposure to site personnel and the community.

Real time spectral subtraction and synthetic background implementation allow the UV Hound and Micro Hound to clearly display accurate concentrations of target gases over 1000 meters without interference from other gas species

Applications

Serving clients in a variety of industries

The Cerex UV Hound and Micro Hound are fantastic solutions for when minimum detection limits must be lower than possible for FTIR and there is a need for odor complaint response, HAZMAT response, and survey monitoring of BTEX, Ammonia, Carbon Disulfide, and more. This includes short term monitoring on battery power as well as long term community deployment within air-conditioned shelters connected to AC power.

Hound series analyzers may also be used for portable stack analysis of Ammonia (NH3), Nitric Oxide (NO), Nitrogen Dioxide (NO2), Sulfide Dioxide (SO2), and some volitive organic compounds (VOCS) if installed downstream of a sample conditioning system providing a cool, dry sample. A dilution system may also be required when measuring high parts-per-million (ppm) levels of combustion gases.

The FR options are well suited for smoky or dusty environments with a faster sample rate and replaceable glass fiber sub-micron sample filter.

All Applications

Ambient Air Monitoring

Refinery Fenceline Monitoring of Benzene, Toluene, and Xylenes (BTEX)

Brownfield Remediation

Chemical Depot Monitoring

Environment Contamination and Remediation

HAZMAT First Response

Indoor Air Safety Monitoring (Portable)

Industrial Hygiene

Leak Detection and Repair (LDAR) Inspection

Manufactured Gas Plant Remediation (MGP)

Perimeter Ambient Monitoring System (PAMS)

Superfund Site Remediation

Tank Farm Monitoring

UV Hound Specifications

Battery Life Dimensions Weight Power Operating Temp Optical Path Length Spectral Range Spectral Resolution
4.5 hours 35.75" x 13.5" x 5.25" (90.2cm x 34.3cm x 13.3cm) 38.5 lbs 5A/2.5A Max @ 100/240 VAC, Single Phase 47Hz - 63Hz 32°F - 113°F (0°C - 45°C) 17m 185nm - 1100nm 0.05-0.5nm
Option Description
Integrated Controller Adds integrated data acquisition and remote management with wired or wireless ethernet.
Analog Outputs Adds analog voltage or 4-20mA output channels. Requires integrated controller or external PC.
Serial Outputs Adds RS-232, RS-422, or RS-485 output over a wired or wireless platform. Requires integrated controller or external PC.
User Configured Alarm Outputs Visible and auditory outputs based on software programmable alarm levels.
Integrated Chemical Cell Detectors Adds logging of a wide array of commercially available chemical detection cells for compounds not detectable by UVDOAS.
Particulate Monitoring Adds integrated particulate monitoring.
Weather Monitoring Adds wind speed and direction logging.
Advanced Weather Monitoring Adds wind speed, wind direction, 3D wind mapping, and air temperature logging.

Micro Hound Specifications

Battery Life Dimensions Dimensions (17m Models) Power Operating Temp Optical Path Length Spectral Range Spectral Resolution
4.5 hours 19.78" x 15.77" x 7.41" (50.2cm x 40cm x 18.8cm) 35.75" x 13.50" x 5.25" (90.8cm x 34.3cm x 13.3 cm) 4A Max @ 100/240 VAC, Single Phase 47Hz - 63Hz 32°F - 113°F (0°C - 45°C) 2m/17m 185nm - 400nm 0.2nm
Option Description
Integrated Controller Adds integrated data acquisition and remote management with wired or wireless ethernet.
Analog Outputs Adds analog voltage or 4-20mA output channels. Requires integrated controller or external PC.
Serial Outputs Adds RS-232, RS-422, or RS-485 output over a wired or wireless platform. Requires integrated controller or external PC.
User Configured Alarm Outputs Visible and auditory outputs based on software programmable alarm levels.
Integrated Chemical Cell Detectors Adds logging of a wide array of commercially available chemical detection cells for compounds not detectable by UVDOAS.
Particulate Monitoring Adds integrated particulate monitoring.
Weather Monitoring Adds wind speed and direction logging.
Advanced Weather Monitoring Adds wind speed, wind direction, 3D wind mapping, and air temperature logging.

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