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Caliente
Performance
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| Introduction |
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Caliente's HeatSmarterTM
Battery and Enclosure Heaters are the perfect complement to
sensitive electronics and backup power systems in outdoor
enclosures. They not only provide the energy needed to ensure
the optimal level of power in even the coldest environments,
but also provide you with peace of mind no matter where your
equipment is installed.
HeatSmarter Battery
Heaters are designed with the special needs of battery users
in mind. That translates into an element that is more energy
efficient than comparable elements, which can give you a competitive
advantage with your potential customers. They are also rugged,
abrasion and acid resistant, yet low profile.
Heat Smarter Enclosure
Heaters focus heat on temperature sensitive chips and circuit
boards during equipment cold starts. We minimize the energy
consumption of your heating system by concentrating the heat
only where it is needed and placing it in intimate thermal
contact with the desired areas.
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| HeatSmarter
Battery Heater Benefits |
- Energy Efficient
-Utilizing more thermally efficient materials at the battery/chip/board
interface layer, while using more insulative materials at
the shelf or air interface.
- Long Life
-Thermally efficient design also means elements run cooler,
lengthening overall life.
- Rugged Design
-Abrasion, acid and impact resistant during and after battery
installation. All materials and completed elements are UL
approved.
- Low Profile
-Average size is .050" or 1.27 mm thick.
- Overall Value
-Smarter material selection and processing provide more
cost effective elements without sacrificing quality or reliability.
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Caliente
Specifications
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| Substrate
Materials/UL Temp.Ratings |
| Polyester
-105°C / 221°F. |
| Polyethylene
-105°C / 221°F |
| Polyvinyl
Chloride (PVC) -105°C / 221°F |
| Thermoset
Laminate -140°C / 284°F |
| Polyethylene
Napthalate (PEN) -160°C / 320°F |
| Polyimide-
200°C/392°F |
| Silicone
Rubber -200°C/392°F |
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| Pressure
Sensitive Adhesives (PSA)/UL Temp Ratings |
| Acrylic
-105°C / 221°F |
| High
Temp Acrylic -149°C / 300°F |
| Silicone-
200°C / 392°F |
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| Typical
Element Thickness (with PSA) |
| Polyester,
PEN, Polyimide -.330mm or .013" |
| Thermoset
Laminate -1.00mm or .25" |
| Silicone
Rubber -1.600mm or .063 |
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| Element
Dimensions |
| Elements
can range from 6mm X 6mm (1/4" X 1/4") to well over 0.6m X 0.75m
(24" X 30"). Each element is configured to best match your particular
application. |
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| Watt
Density |
| Watt
density is dependant upon three factors: heat sinking and air
flow, the maximum operating temperature and the control of the
heater. Watt density can range up to 0.8W/cm sq. (25W/in sq.)
if the element is controlled sufficiently or the heat is taken
away by air or a heat sink. More typical designs fall at or
below 0.3W/cm sq. (10W/in sq.). With thick film heaters, watt
densities can also be varied across an element, concentrating
heat exactly where you want it. |
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| Thermal
Conductivity |
| Materials
are chosen based on thermal conductivity / resistance to provide
a hybrid effect for most energy efficient element possible.
The heaters also operate at a cooler temperature, extending
the life of the element. Enhanced thermal conductivity is achieved
with aluminum shielding and thermal gap filler material. The
reverse side of the element is available with foam and other
insulating materials to direct the heat appropriately. |
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| Abrasion,
Acid Resistance and Ease of Installation |
| Elements
are designed to provide the appropriate mix of abrasion and
acid resistance along with ease of installation based upon the
needs of your application. |
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| Thermal
Sensing Control |
| NTC
Thermistors -leaded glass bead or surface mount styles -senses
temperature change while providing significant resistance change. |
| RTD
(Resistive Temperature Device) -leaded element or surface mount
-senses temperature change -very accurate temperature detection. |
| Thermostat-
Disc, bimetal or bulb/capillary -mechanical device that switches
element on and off. |
| Thermal
Fuse/Thermal Cutout (TCO) - one time over - temperature device
usually used to protect against a runaway temperature situation. |
| Electronic
Control- also available. |
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| Dielectric
Strength |
| Each
element is 100% tested to the greater of 1500V or the typical
approval agency recommendation of 2x input voltage +1000 volts
for dielectric integrity. |
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| Termination |
| Elements
are available with wire leads, locking connectors, edge card
connectors and flex to board connectors. |
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| Resistance
Tolerance |
| Typical
resistance tolerance IS +/- 7.5%, although tighter tolerances
are achievable. Each element is 100% tested for continuity and
resistance. |
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| Agency
Approvals |
| Caliente
works with the worlds leading electrical approval agencies to
ensure uncompromising quality, integrity and safety for you
and your customers. |
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| Designs
Services |
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Caliente's experienced
designers can assist in your design efforts to build a battery
or enclosure heater specifically for your application. In
addition, we can look to optimize your current element designs
and recommend proper watt densities, controls and element
construction.
Caliente will conduct
a thorough design review and present a proposal and quotation,
followed by sample elements upon approval. We also provide
testing services and gather agency approvals to verify and
ensure that the element construction and design will be optimal
for your application.
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