Don't just say the air is clean prove it ......with the EVM Range Of Environmental Monitoring Equipment
5 June 2013, News release from Shawcity Ltd
The EVM range of environmental monitors from 3M are rugged and easy to use and can combine several air quality instruments in one.
The EVM-3 is a dust monitor with relative humidity (RH) and temperature measurement capabilities.
The EVM-4 an Indoor Air Quality monitor equipped CO and CO2 sensors and an optional anemometer for HVAC and LEV applications.
With the capability to simultaneously measure and datalog particulates, Volatile Organic Compounds (VOCs), toxic gas, carbon dioxide, relative humidity, temperature and air velocity the top of the range EVM-7 provides a cost effective solution and reduces the need for multiple instruments allowing you to analyse several parameters in one unit.
The system can also be used in outdoor applications with the EVM Outdoor Kit, a custom made battery or mains operated unit that enables the EVM to be used for measuring outdoor air quality and dust migration. The unit has both an analogue and digital output enabling both dust and VOC measurements to trigger either audible or visual alarms or trigger a remote response via an optional modem.
Erith Contractors rely on a number of EVM units to monitor both dust and PID levels in an outdoor environment:
"The dual functions of the EVM 7 cut down the amount of equipment needed and the fool-proof user interface meant that the instruments were incredibly simple to set up. The nature of our work on historical gasworks means that both dust and PID monitoring are of the upmost importance due to the presence of hazardous contaminants and toxic gases in the materials being disturbed. The factor which makes the EVMs invaluable and separates them from the other environmental monitoring units on the market, is that they can be left to run at several locations around the site, to continuously collect data throughout the day with complete confidence."
Gavin Craig, Site Office Manager, Erith.
A unique dial-in impactor allows easy selection of particulate size settings PM2.5, PM4, PM10 or Total Dust, without disassembly. A built-in sampling pump assists in the collection of particulates while a laser photometer provides real-time dust measurement. A built in standard 37 mm filter cassette offers simultaneous gravimetric sample collection for further laboratory analysis.
Using a high-performance Photo Ionisation Detector (PID) developed by UK based IonScience, the EVM-7
measures Volatile Organic Compounds (VOCs) down to parts per billion (ppb) levels as well as the ability to also simultaneously measure carbon dioxide and another toxic gas.
The EVM range of environmental monitoring equipment is available to hire or buy from Shawcity, the UK exclusive distributor for the EVM and 3M range of Air Quality, Sound and Noise and Heat Stress range of instruments. Product training is also available to ensure that users are competent in the use of their instruments.
For further information please email Shawcity Ltd