IEC 60068 -40 °C ~ +150 °C Constant Temperature And Humidity Climate Chamber 225L

Technical Parameters

Power Supply

Single phase: AC220V ± 10%, 50Hz or match client's local power grid

Control & Operation

PLC and touch screen intelligent control system

Chamber Size

Inner Size

External Size

600*500*750 mm

1150*970*1900 mm

Temperature Range

-40 °C ~+150°C (can be customized)

Humidity Range

20%～98%RH (can be customized)

Temperature Resolution

0.1℃

Temperature Fluctuation

±0.5℃

Temperature Uniformity

±2℃

Humidity Deviation

±3%RH

Heating Rate

≧2-3°C/min (can be customized)

Cooling Rate

≧0.7-1°C/min (can be customized)

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 304# stainless steel plate, rounded shape, smooth and easy for clean

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

Humidifying method: adopting external humidifying structure, transmitted through the air duct. Advantages are stable speed, small influence on the temperature of the inner box, stable temperature rise, and ideal humidification effect.

Humidifying tube: U-shape design plus over-temperature probe hole, heating wire and heating system using the same imported brand materials, with anti-dry burning function, to ensure that the humidifying tube has a long service life and is durable.

HUMIDIFICATION AND REPLENISHMENT: There is a drawer type water filler box. The water level can be visually checked by the level display scale on the circulating water tank. The water level is automatically controlled. Equipped with a water shortage alarm.

Cooling System

Refrigeration method: air-cooled cooling using compressor-heat exchanger

Compressor: Tecumseh, French brand

Cold Air Circulation: The forced circulation air duct ensures smooth return and supply air to ensure an even temperature in the working chamber.

Control System

Touch screen: TIME880, SAMWONTECH

Temperature control: PID self-tuning, using Class A PT100 platinum resistance sensor

Functions: Fixed value test and programme test

Fixed Value Test: When the test environment requires only a single temperature and humidity, select this mode to set the desired temperature, humidity and run time.

Programme Test: When the test environment requires multiple temperatures and humidities, select this mode to set the temperature, humidity and run time for each programme. The operator can set the sequence in which the programmes will run, up to a maximum of 100 programmes.

Data Storage

Through the temperature and humidity curve interface, data changes and processes can be recorded; through the standard R232 interface or USB stick communication interface, data can be downloaded.

Safety Protection

Power failure memory function, phase sequence protection, leakage protection, over-temperature protection, compressor overload protection, water shortage alarm, abnormal protection.