Crowcon T4 Personal Gas Monitor | Portable Gas Detection – Webinar

Published 19 Oct 2020

Crowcon T4 Personal Gas Monitor

Detecting Gas

Crowcon T4 Personal Gas Monitor

Thorne & Derrick, Experts in Equipment for Explosive Atmospheres, are Specialist Distributors of Gas Detection monitors and instruments for detecting oxygen, flammable and toxic gas hazards in industrial and hazardous area locations with explosive atmospheres – the fixed and portable gas detectors manufactured by Crowcon are economical, reliable and innovative.

In this webinar learn what workplace exposure limits (WEL) are and why they are important, see how innovative features such as TWA resume allow Crowcon to deliver the most accurate TWA tracking in the industry.

Workplace Exposure Limits

Exposure to large scale flammable or toxic gas releases can be extremely hazardous to health and can even cause death but prolonged exposure to lower levels of gasses can also cause significant health problems, particularly if it occurs over a long period of time.

UK: Control of Substances Hazardous to Health Regulations (COSHH).
Defines Workplace Exposure Limits (WELs)

USA: Occupational Safety and Health Administration (OSHA).
Defines Permissible Exposure Limits (PELs)

TWA Resume

The Crowcon T4 and Gas-Pro ranges have Crowon’s proprietary TWA Resume feature. This  innovative and unique functionality makes sure accurate TWAs are recorded for each and every 8-hour/TWA period, keeping employees safe and removing the risk of non-compliance. Furthermore, it makes it easy for a firm to prove their compliance in the face of any legal claim.

TWA Resume is a patented feature only found on Crowcon devices. When turned off during the TWA measurement period, it stores TWA data in its memory. When a worker switches it back on, they can choose to resume measurement from where it left off, or start a new TWA measurement.

TWA Resume

TWA Resume

The above image shows how Crowcon’s proprietary TWA Resume feature keeps workers safe and proves a firm’s compliance, by continuing to monitor exposure to harmful gases even after a mid-shift break or other switch-off during the TWA period.

Other gas detectors don’t do this, they assume any switch-off (e.g. for meals or to drive between sites) signals a new period of measurement, which leaves workers vulnerable to over-exposure and harm, and firms open to legal sanctions due to harm and/or non-compliance.

In this image, you can see the workplace exposure limit is breached at around 14:00, but only the Crowcon device with TWA Resume alerts the user to this fact and documents it.

Crowcon T4 Personal Gas Monitor

Crowcon T4 is a portable gas detector that provides a personal detection solution against four of the most common gas hazards – carbon monoxide, hydrogen sulphide, flammable gases and oxygen depletion. The T4 also now has improved detection of pentane, hexane and other long chain hydrocarbon.

  • Light weight (280g)
  • Multi Region Power Supply
  • 95 dB Alarm
  • 18 Hour Run Time – 5.5 hour recharge
  • TWA Resume* prevents overexposure to toxic gases
  • 4 Sensors for 4 Gases
  • Integral Rubber Boot Extremely rugged
  • IP 65/67
  • +ve Safety™
  • Visual Alarm Bars – Vibrate Alarm
  • Crowcon Connect ready
  • External Filter Plate
  • Clear screen with 180 flip for easy viewing
  • One Button Operation
  • Cradle Charger
Crowcon T4 Gas Detector

Crowcon T4 Gas Detector

More gas detection Reading

Contact Thorne & Derrick for specification guidance, product selection, competitive prices and delivery from stock for the complete range of Gas Detectors manufactured by Crowcon.

Distributors of Gas Detection Monitors & Instruments

Distributors of Gas Detection Monitors & Instruments

Flame, Heat, Gas Detectors & Detection Systems

ATEX Beacon

Hazardous area industries including offshore oil/gas platforms and FPSOs, onshore oil refineries, processing plants, pipelines, storage farms and LPG/LNG plants all utilise or produce a wide range of hazardous flammable liquids and gases that can be detected using correctly specified flame and gas detectors.

Detecting toxic and flammable gases requires the detectors to be classified and certified according to the specific IECEx or ATEX standard – we distribute flame and fire detectors manufactured by Spectrex to operate in the harshest environmental conditions including self-contained stand-alone devices designed for direct connection to control and alarm systems or automatic fire extinguishing systems.

Our range of Hazardous Area Fire & Gas Detection System products also includes Explosion Proof Warning Systems & Hazardous Area Lighting – comprehensive range of intrinsically safe, flameproof and explosion proof alarm sounders, sirens, bells and horns, loudspeakers and beacons.

♦ LV Power Products | Junction Boxes & Enclosures ATEX | Plugs ATEX | Control Stations ATEX | Isolators ATEX

Detect Flame Heat Gas ATEX

Thorne & Derrick | Detecting Flame | Heat | Gas

Experts in Equipment

for Explosive Atmospheres

Experts In Equipment for Explosive Atmospheres & Hazardous Area Locations

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