EnclosureSolutions JUNE 2015
SUPPLEMENT ENCLOSURE SOLUTIONS
DUAL CONTROL & PROTECTION FOR ENCLOSURE ENVIRONMENTS
Y
ou can regulate the temperature and humidity in your enclosures with the new Fandis dual thermostat from Axair. Designed to
operate with heaters or fans, the dual system removes the need to purchase two separate devices, allowing you to control your ventilation and anti-condensation systems independently and simultaneously, from one compact unit. Not only will you reap the benefits
Why not try your luck in our new competition to win a KINDLE Fire. Simply indicate from the list below which product areas you will be looking to purchase within the next 6 to 12 months.
Just tick the relevant boxes below and fax the form back to 01622 757646.
We will automatically enter your name into our free prize drawand you could be one of our lucky winners!
Hinges Latches Locks
Bespoke Enclosures
Stainless Steel Enclosures IP 67/68 Enclosures
Enclosures for hazardous environments Cables
Cooling and Air Conditioning Levelling Feet
Handles,Handwheels and Knobs Explosion Protection Electrical Enclosures
Enclosures for the Rail Industry Hand held Enclosures
What is your e-mail address
......................................................................................................... Tel ................................................................................................... Company ...................................................................................... Signed ............................................................................................
Date ................................................................................................ Draw closes December 31st 2015
From time to time Datateam Business Media Ltd or selected clients may contact you by direct mail, fax, telephone or email with details of products and services which we believe to be of interest. Tick this box if you wish to be excluded from these offers.
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of not having to buy, install and operate two devices, but other advantages of using the bi-metallic twin thermostat include a reduction in temperature fluctuations, a reduction in fan noise omissions and a reduction in power consumption. It will even help to extend fan lifetime, the company explains. As with many Axair products, the Fandis twin thermostat can save time and money, Axair adds. The CE approved unit operates from -10˚C to 80˚C and runs on
voltages between 100Vac and -250Vac. Housed within a durable polyamide casing, fitting is a simple snap-on process, with the unit easily attached to a standard (EN 50 022) 35MM rail. For more information or to request a datasheet, contact one of the
company’s engineers today. Axair Fans UK
www.axair-fans.co.uk
T: 01782 349430 Enter 244
KEEPING ELECTRONICS COOL M
ost electronic enclosures need some form of air ventilation to keep the electronics within cool. If this is an RFI/EMI shielded enclosure then
the overall shielding effectiveness of the enclosure can be compromised. For many commercial applications perforated sheet metal will suffice, but for high performance requirements waveguide vents provide superior shielding over a wide frequency range. Waveguides can be circular, rectangular or honeycomb shaped. The principle is that of ‘Waveguide beyond cut- off’. The honeycomb vent is a series of tubes
that acts as a waveguide, guiding electromagnetic waves into or out of the enclosure, but as the tubes are long enough then it attenuates those waves. Typically the tube should be at least three times as long as the diameter; good practice is four times. Therefore a 3.18mm cell should be 12.7mm long. The most cost effective is aluminium honeycomb. This offers high shielding
performance, light weight and good airflow as it is 96% open area. A typical shielded enclosure will use two honeycomb ventilation panels: one as the inlet and one for the exhaust. Kemtron’s standard honeycomb vent uses two layers of 3.18mm cell x 6.4mm thick laid at 90˚, this is known as cross cell. Cross cell honeycomb improves shielding performance by eliminating any polarizing effects. Typical shielding performance of a 12.7mm thick cross cell vent is: 200 KHz in H (magnetic field) 71db 100 MHz in E (Electric field) 105db 500 MHz in P (Plane wave) 93db 2 GHz in P (plane wave) 10 GHz in P (Plane wave)
94db 90db
Protective kick plates can be incorporated in the vent to prevent
damage to the honeycomb. Kemtron
T: 01376 348115
www.kemtron.co.uk Enter 245 / DESIGNSOLUTIONS
Win a KINDLE Fire
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