The exterior chamber construction includes a powder-coat finish over heavy-gauge steel and type 304 stainless steel on the inside. Sandwiched between is a layer of highly-efficient, low K-factor, thermal insulation for the highest efficiency and temperature performance.
The SM Series features two zones.To achieve the rapid change in temperature, your product sits in a pneumatically controlled basket that travels vertically between the two zones within seconds. (An optional third zone for ambient temperature can be added; see below the video).
Each compartment holds your desired temperature with a heated zone and a cold zone. The specially designed basket is a traveling workspace with its own sensor so you can monitor the environmental condition in each zone, the temperature of the specimen, and its recovery time.
When you need to cool your specimen even faster, an optional liquid LN2 or CO2 boost can be added.
A third zone can be joined between the hot and cold for ambient temperature exposure.
Cooling differences between 2900 models and 9100 models should be noted.
The SM Series thermal shock chambers have incorporated AESONE CONNECT, creating a robust connected device for a standard and uniform interface that makes test chamber operation easier.
AESONE XCHANGE is hardware internal to the chamber that increases your functionality:
AESONE SOFTWARE gives you the power to
The WATLOW F4T programmable controller features a 4.3” capacitive touchscreen minimizing the chances for error. Ethernet communication is also supported by AESONE HARDWARE.
A temperature sensor measures at the point of airflow entering the workspace: class A, 3-wire, 100 ohm platinum RTD sensor.
An additional relative humidity sensor measures at the point of airflow entering the workspace. The speed of airflow does not affect its measurement. This sensor is highly accurate between 10-95% RH, over the entire temperature operating range of -70°C to +180°C (-94°F to +356°F).
AES heating systems are all-electric. They work by passing air over fast-response, low-watt-density resistance heaters with a ceramic core, ensuring a long reliable life with no downtime.
The combination of airflow, instrument response, and these fast-reacting heaters give highly accurate and straight-line control of temperatures. AES’s heating systems support temperatures upwards of 180°C (356°F), and heaters may be controlled independently or in unison.
Heating systems are located in a plenum so that test items are not subject to direct radiation.
Thermal shock chambers are designed to get you testing as soon as possible, with fast change rates. The SM Series has an average pull-down rate of 2.5°C/ minute and an average ramp rate of 4.4°C/ minute.
The chambers feature liquid-cooling. This method is power-efficient and takes up a smaller area than an air-cooled options. Keep in mind that liquid-cooled chambers require a water supply.
You can reach temperatures as low as -70ºC with a standard SM Series chamber, although there are ways to go even colder.
Liquid nitrogen (LN2) and carbon dioxide (C02) boost options are available. While CO2 has a boiling point of -57°C (-70.6°F) and can be stored in smaller amounts, LN2 has a boiling point of -196°C (-320.8°F). Therefore, liquid nitrogen provides pull-down rates that are much faster.
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