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New product focus: Ultra View Temperature (& Humidity) Chamber
2-3 Markedly improved performance
Using conventional heat-reflecting film or incorporating heating wires in the glass panes
required design limits on the performance of the chambers, but by utilizing glass
reinforced with layers of deposit metal film, performance can be markedly upgraded. This
design permits a wide temperature range, from –40°C to +120°C.
Table 4 Comparison of lowest and highest achievable temperatures
Lowest achievable emperature Highest achievable temperature
New chambers -40°C *1 +120°C *2
Established chambers -20°C to -35°C +80°C to +100°C
*1 This performance table conforms to JTM K01-1998.
*2 With the optional “viewing window reach-in ports”, the limit is +100°C.
Expanding this temperature range makes it possible to apply the following types of test
conditions as well.
(1)LCD device environmental tests
Storage (at high temperature) test: +30 to +100°C
Storage (at low temperature) test*: -50 to 0°C
Damp heat, steady state test: +40°C, 93%rh to +85°C, 93%rh; 85°C, 85%rh
Composite temperature/humidity cyclic test: +25°C, 93%rh to +65°C, 93%rh;
-10°C
Standards: IEC61747-5 (JIS C60068-2-38), EIAJ ED-2531A
(2)Automotive parts environmental tests
High Temperature, Low Temperature Test: +120°C to –40°C
High Temperature Exposure Test: +120°C
Low Temperature Exposure Test: -30°C
Standards: JIS D 0204, 0208
(3)PDP environmental tests
High Temperature (storage): +30 to +100°C
Low Temperature (storage)*: -50 to 0°C
High Temperature, High Humidity (constant): +40 to +60°C, 85% or 93%rh
Low Temperature Operation: -20 to 0°C
(*The Ultra View Temperature (& Humidity) Chamber is compatible down to
-40°C.)
To meet the demand for these standards, Espec has utilized glass reinforced with deposit
metal, broadly extending the temperature range from –40°C to +120°C.
The new chambers offer a greatly extended range of control for humidity as well as for
temperature.
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Espec Technology Report No20