Temperature And Humidity Test Chamber 1000L For Testing Durability
Of Materials IEC60068-2
Product overview:
This test chamber is used for cold, heat, humidity and dryness
testing of raw materials and devices such as electronics,
electricians, electrical appliances, plastics, etc. The purpose is
to confirm the products reliability of storage and transportation
under high and low temperature alternating heat and humidity, an
necessary test equipment which is required by many standards such
as IEC60335-1 clause 15, etc.
It conforms to standards:
IEC60068-2-1:2007 “Environmental Testing-Part 2-1: Tests-Test A:
Cold, IDT”
IEC60068-2-2:2007 “Environmental Testing-Part 2-1: Tests- Test
B-Dry heat, IDT”
IEC60068-2-78:2012 “Environmental Testing-Part 2-78: Tests-Test
Cab: Damp heat, steady state, IDT”
IEC60068-2-30:2005 “Environmental Testing-Part 2-30: Tests-Test Db:
Damp heat, cyclic (12h+12h cycle), IDT”
Structure:
This machine adopts a closed chamber structure with the following
features:
A. It has an extremely wide temperature and humidity control range
to meet the various needs of users.
B. It adopts a unique balanced temperature adjustment and humidity
control mode to adjust the ideal temperature and humidity
environment. The heating and humidification capability are stable
and balanced, and the temperature and humidity control are
high-precision and high-stability.
C. Automatic selection of refrigeration circuit: The automatic
control device has the ability of automatically starting the
running refrigeration circuit according to the set value of
temperature, can start the cooling directly under the high
temperature state.
The refrigeration adopts the air-cooled condensing unit with fully
enclosed compressor (imported).
D. The door is equipped with an observation window, which is
convenient for observing the test state of the test sample.
Technical parameters:
| Power Supply | Three phases: AC 380V± 10%, 60Hz |
| Control & Operation | PLC and touch screen intelligent control system |
Chamber Size
| Inner Size | External Size |
| 1000*1000*1000 mm | 1470*1400*2100 mm |
| Temperature Range | -40 °C ~+150°C |
| Humidity Range | 20%～98%RH |
| Temperature Resolution | 0.1℃ |
| Temperature Fluctuation | ±0.5℃ |
| Temperature Uniformity | ±2℃ |
| Humidity Deviation | ±3%RH |
| Heating Rate | ≧2-3°C/min (non- load, non-linear) |
| Cooling Rate | ≧0.7-1°C/min (non- load, non-linear) |
| Temperature and Humidity Range Scheme |  |
| Main System Composition |
| Chamber Body | The inner chamber is made of SUS304# stainless steel plates,
rounded shape, smooth and easy for clean |
| The outer box is made of high-quality steel plate with color
electrostatic spraying |
| Insulation material: polyurethane foam |
| Observation window: double-layer explosion-proof tempered glass |
| Shelf: Made of 304 stainless steel, detachable shelf |
| Heating System | Heating method: electric heating |
| Adopting the latest new ceramic heating frame, the ceramic material
is resistant to high temperature and with good insulation, will not
cause leakage short circuit phenomenon. The middle is connected
with German imported heating wire, the wire diameter is thick, high
temperature resistance and dry burning resistance. The quartz glass
tube is inserted in the middle of the heating wire, to prevent the
short circuit fault due to heating wire contacting metal chamber. |
| Thermal cycling: forced circulation air duct to ensure the heat
transfer of the heater, to prevent local temperature is too high
and to ensure the required temperature in the working chamber. |
| Humidification System | Humidification method: adopts external humidification structure,
transfers through the air duct. The advantage is that the speed is
stable and the influence on the temperature of the inner box is
small, so that the temperature rise is stable and the
humidification effect is ideal. |
| Humidification tube: U-shaped design plus over-temperature probe
hole, heating line and heating system adopt the same imported brand
material, with anti-dry function to ensure long service life and
long-lasting durability of humidification tube. |
| Humidification and hydration: There is a drawer type water adding
box. The water level can be visually observed through the liquid
level display scale on the circulating water tank. The water level
is automatically controlled. With water shortage alarm. |
| Cooling System | Refrigeration method: air-cooled cooling using compressor-heat
exchanger |
| Compressor: Tecumseh, French brand |
| Cold air circulation: forced circulation air duct ensures smooth
air return and air supply, ensuring temperature uniformity in the
working chamber. |
| Control System | Touch screen: 7 inch |
| Temperature control: PID self-tuning, using Class A PT100 platinum
resistance sensor |
Function: fixed value test and program test Fixed value test: When the test environment only requires a single
temperature and humidity, select this mode to set the required
temperature, humidity and running time. Program test: When the test environment requires multiple
temperatures and humidity, select this mode to set the temperature,
humidity and running time of each program. Operator can set the
program running sequences and can set up to 100 groups of programs. |
| Data Storage | With temperature and humidity curve interface, the data changes and
processes can be recorded, with standard R232 interface or U disk
communication interface, the data can be downloaded. |
| Safety Protection | Power-off memory function, phase sequence protection, leakage
protection, over-temperature protection, compressor overload
protection, water shortage alarm, abnormal protection. |
