Certification & Test
Product constant
temperature and constant humidity test
According to the national standards,
such as the GB2423.1-2008 test A "low temperature test method", the
GB2423.2-2008 test B "high temperature test method", the
GB2423.3-2006 test C "constant damp heat test method", the GB2423.4-2008
test D "alternating humidity and heat test method", and other related
standards, design the production in strict accordance with the GB 10592-2008
"high low temperature test box technical conditions",
"GB105862006 damp heat test box design and production technical conditions".
Constant temperature and humidity
machine (constant temperature and humidity test box | programmable constant
temperature and humidity testing machine | alternating high and low temperature
test box) is to provide constant humidity, high temperature and other complex
test environment and test conditions for electronic components, industrial
materials and finished products in R & D, production and inspection of all
aspects of the test, suitable for electronic appliances, telecommunications,
chemical, metal, rubber, toys and other industries. Constant temperature and
humidity system works by three interrelated systems: the refrigerant
circulation system, air circulation system, electrical control system. In
refrigerant cycle system, the liquid refrigerant in the evaporator absorbs heat
from the air (air cooled and dehumidified) and begins to evaporate and form a
final temperature difference between refrigerant and air. Liquid refrigerant is
completely evaporated into low temperature and low pressure gas, after the
compressor suction and compression (pressure and temperature increase), gaseous
refrigerant absorbs heat through the
condenser (air / water), and condenses into liquid. After the expansion valve
(or capillary) throttling, it becomes low temperature and low pressure
refrigerant and goes into the evaporator to complete the refrigerant cycle
process. The temperature range of constant humidity and constant humidity
machine: -30 C ~ 85 C, humidity range: 30% ~ 98% RH.
Environmental test ----
high and low
temperature alternating humidity and heat test box
Technical conditions of GB10589-89 low
temperature test box
Technical conditions for GB11158-89
high temperature test box
Technical conditions of GB10592-89
high and low temperature test box
GB2423.1 low temperature test and test
A
GB2423.2 high temperature test and
test B
GB2423.22 temperature change test and
test N
Alternating high and low temperature
test box is suitable for the instrument,meter,electrical and electronic
products in the whole and parts used to test and determine the parameters and
performance of the electrical, electronics and other products and materials
after the high temperature, low temperature, alternating hot degree or constant
temperature test.
Temperature range: -30 C ~ 85 C,
humidity range: 30% ~ 98% RH.
