Used NATIONAL 5331 #161009 for sale

NATIONAL 5331 is a laboratory-scale oven/furnace designed for use in research and development projects in academic, industrial and government settings. With a temperature range of 500° to 1250°F (260° to 677°C) and an interior volume of 0.25 cubic feet (7 liters), it is ideal for a variety of uses. The oven/furnace is suitable for sample preparation, annealing, sintering and ashing. The base is constructed of stainless steel and the removable top is made of Type 304 stainless steel with a buffered insulated lining. The oven/furnace is capable of withstanding temperatures up to 1500°F (816°C). The oven/furnace is equipped with a robust control system that consists of a digital temperature controller. This controller is programmed with adjustable high and low limit setpoints (two-step ramp and soak programming capability) as well as PID parameters to ensure precise control of temperature throughout the chamber. The controller also includes an overtemperature safety device to protect the furnace and users from temperature excursions above the setpoint. The temperature controller is capable of reading up to three thermocouples for temperature monitoring. The oven/furnace features a split-hinge design for easy access and loading into the chamber. It also has two removable shelves which can be used to provide consistent heat exposure because the shelves can be adjusted to different heights. It also includes a chimney-style door with an adjustable port for better circulation of air and quicker temperature recover. The dimpled bottom of the oven/furnace provides excellent heat distribution and convection throughout the chamber. In order to keep the oven/furnace in a safe condition and prevent damage from overheating, the unit must be installed and wired according to local wiring regulations and must be grounded. Furthermore, the user should make sure that the power supply meets the specified voltage and current for the oven/furnace. The unit should be installed at least 15 cm (6 inches) away from a wall to ensure proper ventilation and to avoid the transfer of heat to the wall. For improved safety, the external walls of the oven/furnace are insulated with ceramic blankets that have high heat-resistant ability. In addition, the external housing is designed to be dust and moisture-resistant. This makes it perfect for day-to-day use in a research or development setting. All these features make 5331 Laboratory Oven/Furnace a reliable and effective tool for high-temperature processing.