26 March, 2019
Counting down on from our 11 Myths of Infrared we are going to answer some frequently asked questions about our heating elements.
1 What’s the standard supply voltage for ceramic and quartz emitters?
The standard rated voltage is 230V. Other voltage ratings are available on request. Ceramicx can design the heating element to operate at different power outputs and with different voltage ratings for extra cost/minimum order.
2 Can infrared emitters be used under vacuum?
Infrared emitters are frequently used under partial vacuum. The direct transfer of radiant energy is generally more efficient due to the absence of water vapour molecules which would normally absorb some of the infrared radiation.
3 What’s the optimum distance to have between an infrared emitter and the target material?
This varies depending on application but Ceramicx generally recommend 100-200mm for static applications where heater and target are in a fixed position. Optimum distance depends on element spacing and the desired temperature uniformity across the surface. In general, the greater the distance, the greater the radiant dispersion which in turn facilitates uniform heating. Shorter distances may lead to increased heat flux concentrated over a smaller area which can create localised high temperature areas.
4 How do I choose the best Infrared emitter for my application?
If the absorption characteristics of the target material are known, it may be possible to use peak emission wavelength as a means of choosing the most suitable emitter. If not known, small scale testing with 1 or 2 emitters may be enough to provide a better understanding of what works with the material in question. Another key factor is the thermal response time required by the process. Ceramic emitters typically require about 10-12 minutes to reach steady state temperature, quartz cassette emitters require about half this time and tungsten/halogen emitters are close to full output within a few seconds.
5 What is the life expectancy of the ceramic emitter?
(normal usage) 20,000 hours is the guarantee on our elements.
6 What is the difference between flat and trough style ceramic emitters?
The trough style element produces a concentrated output which disperses with distance making it better suited to emitters positioned further from the target. Flat style elements produce a uniform output better suited to emitters positioned closer to the target material.
7 How are heating elements controlled?
We recommend using a thermocouple type K to monitor and control the element temperature which can be used with a suitable temperature controller.
8 What distance should I leave between emitters when designing a heater array?
This also varies depending on application and emitter to target distance but in general, small distances between emitters facilitate improved temperature uniformity. Ceramicx generally recommends a minimum of 5mm between ceramic and quartz cassette style emitters when arrayed inside a heater field.
9 Are Infrared ovens more efficient/ effective than convectional ones?
Infrared heat is more efficient and effective. It targets the material and the area you want to heat more effectively. Infrared heat allows better control of temperature of your material in zones. With convection the air and the material must be heated, and hot air will always escape. Convectional heat is poor to control.
10 Do Ceramicx supply heating for commercial / warehouse spaces and comfort heating?
We contract manufacture comfort heating products for our friends at Herschel Infrared in the UK.
Often asked Q’s
What countries do you ship to?
We have distributers all over the world. See our Contact Us page or email firstname.lastname@example.org to find out more.
Shop order enquiries / Order tracking details?
Do you have an online product guide?
Yes, our Heatworks 20 magazine acts as our most up to date product guide.