CHEVRON LEV Airflow Indicator

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The Manufacturer, Monitair, believe that the best way to show LEV users that their environment is safe to work in, is to use an airflow indicator, or LEV monitor, which has been specifically designed and manufactured for LEV systems. It should be quick and easy to set up as the LEV is being installed and commissioned, or just as easily retro-fitted to existing installations.

The result is the Chevron, a user-friendly, highly visible, microprocessor-controlled  electronic airflow indicator, which instantly shows if the industrial ventilation is working as it should.

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Product Specification unless deselected above

More Information
Measurement Application Air and Gas Measurement
Available Outside the UK? Yes
Brand Monitair

The Chevron, is a user-friendly, highly visible, microprocessor-controlled  electronic airflow indicator, which instantly shows if the industrial ventilation is working as it should.

… making the invisible VISIBLE.

Chevron airflow indicator showing good airflow

Chevron airflow indicator showing inadequate airflow

The aim has been to make the Chevron

  • Easier to FIT
  • Easier to CALIBRATE
  • Easier to USE
  • Easier to AFFORD

Easier to Fit. The Chevron LEV monitor can be fitted either to the duct or to a suitable surface or structure using banding, self-tapping screws, nuts and bolts or any way you prefer. It only weighs 130g including batteries, so lightweight fittings can be used. Once in place, the Chevron is tamper-proof, and the case cannot be opened. You can easily extend the tubing using the supplied adaptor and put the Chevron up to 10 metres away, and it will work just as well!

Easier to calibrate. You only need one type of Chevron. You don’t need to know the static pressure inside the duct. As long as it’s sufficient to pull air at a high enough extraction speed, the Chevron will monitor the pressure and react accordingly. A simple calibration procedure is carried out, with the unit in situ, when you know the airflow is correct. There is no need to open the Chevron’s case to do this, so calibration is a breeze.

Easier to Use. The Chevron LEV Monitor is bright orange, so is highly visible and attention-grabbing, and has a continuously moving display to indicate either adequate or insufficient airflow. The user has no difficulty reading the display with just a glance. If the fan fails, or the duct gets damaged, or if a blockage reduces the duct airflow, the Chevron will tell you – unambiguously.

Easier to Afford. Constantly measuring and remeasuring static pressure as the LEV is commissioned and balanced is an arduous and time-consuming task. Changes to the system, such as adding in new hoods, or increasing or balancing existing air velocities requires repeating the process, taking further precious time. The Chevron is priced very competitively and can be re-calibrated quickly and as often as you need, so you save time and money.

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