K-5
HIGH TEMPERATURE CLOTH-FACED
INFRARED PANEL HEATERS
U Most Popular
U 870°C (1600°F) Maximum
Operating Temperature
U Black Quartz Ceramic
Cloth Face
U Output Wavelength
Between 2.5 and 6
Microns
U No External Reflectors
Required
OMEGALUX®QF Series heaters are
very popular infrared panel heaters
used in a wide variety of applications.
The QF series panel heaters’ radiant
surface is constructed through a
patented process using bonded high
temperature cloth quartz. A black
coating is applied to the face of the
heater for greater emissivity. A 2.5 cm
(1") thick ceramic fiber refractory board
is grooved out to support the precision
resistance coils.
The resistance coil is then housed
into the grooved-out refractory board.
A layer of durable, high temperature,
cement is used to bond the quartz
face to the resistance coils as well
as to the refractory coil support.
The resistance coils used are an
iron/chromium/aluminum alloy which
can operate up to 1315°C (2400°F).
These are then welded to stainless
terminals which are routed to the back
of the heater for external electrical
connections. The welding insures the
best possible electrical path. By
changing to stainless buss bars and
terminals, the conductivity is increased,
insuring less heat buildup in the
terminals. The heater board is then
backed up by a high temperature
insulation to prevent back heat loss.
Finally, this is all packaged in a sturdy
aluminized steel frame.
CHOOSING THE RIGHT IR HEATER
Not all infrared heaters are alike. Here is
a list of some of the most important
questions to answer when determining
which heater to choose.
1. RESPONSE TIME: How quickly do
heaters need to reach operating
temperature? IR heaters can reach
operating temperatures as quickly as
2 seconds or take as long as 1 hour.
Most take between 5 seconds and
10 minutes.
2. POWER REQUIREMENTS: What
watt density (usually referred to as
watts per square inch) is required?
3. ENVIRONMENT: What will the
ambient temperature be? Will there
be any flux, fibers, hazardous
chemicals, or any other matter
disturbing the environment?
From
$
295
Shown with
the CN9000A
Series
Controller,
from $199.
4. CONTROL METHOD: IR heaters can
be controlled one of two ways:1)
having the heaters on a percentage
timer (open loop) and 2) through the
use of a temperature control (closed
loop) method. The temperature
control method is the most accurate
way to control heaters and keep them
at a consistent temperature. If you
choose temperature control, you will
have to decide whether to use a
thermocouple or a pyrometer to
measure temperature.
5. PROCESS NEEDS: Is it a conveyor,
indexing, or a stationary process?
Does the process call for a cleanable
surface on the heater? Are zones in
the individual heaters required?
Compensation?
6. APPLICATION PROCESS: What
exactly is the application? Are you
trying to cure something? Melt
something? Cook something, etc.?
7. SPACE RESTRICTIONS: Is space
limited?