Vacuum Ovens from Jeiotech provide controlled heating and drying under reduced pressure for laboratory applications. With temperatures reaching 250°C, precise temperature calibration, and integrated safety features, these instruments support reliable sample processing. Apex Scientific supplies vacuum ovens throughout South Africa for research laboratories, pharmaceutical facilities, and industrial quality control applications.
Precise temperature control and uniform heating
Jeiotech vacuum ovens offer a wide operating temperature range, reaching up to 250°C. The instruments maintain temperature uniformity within ±1.5°C at 100°C, supporting consistent heating throughout the chamber.
Furthermore, a three-point temperature calibration function improves measurement accuracy across the operating range. This allows laboratories to maintain controlled conditions during drying and heating procedures. The stainless steel chamber interior and aluminium shelves provide corrosion resistance while simplifying cleaning and maintenance. Additionally, the top-mounted display reduces the equipment’s space requirements and provides convenient access to operating parameters.
Vacuum drying and chamber design
Vacuum ovens remove air from the chamber to create reduced-pressure conditions. This allows laboratories to dry samples at lower temperatures than conventional atmospheric-pressure drying, depending on the material and vacuum level. Jeiotech incorporates separate vacuum and pressure-release lines for convenient operation. Furthermore, the toughened glass door seals against the gasket under vacuum, helping maintain chamber conditions during extended drying procedures.
An optional Viton gasket is available for applications involving chemically reactive substances, subject to material compatibility. For vacuum drying processes that release moisture or solvents, Jeiotech recommends installing a cold trap between the chamber and vacuum pump. This helps prevent vapours from reaching the pump and supports reliable operation.
Intelligent control and data monitoring
The vacuum ovens feature a large LCD that provides clear visibility of temperature settings, operating conditions, and system information. Additionally, the controller includes automatic temperature recommendations based on operating history and a wait on/off timer adjustable up to 99 hours and 59 minutes. Researchers can connect the equipment to a computer using RS-232 and USB interfaces. Furthermore, an optional building management system (BMS) communication port allows facilities to monitor oven temperature through their central monitoring infrastructure. For remote monitoring, the optional LC GreenBox enables access through the LC Connected mobile monitoring system.
These advanced functions are not available on the OV4-30S and OV4-65S models. For laboratories operating under regulated quality systems, optional LC DataKeeper software supports data management aligned with FDA 21 CFR Part 11 requirements and GMP audit workflows.
Selected models also provide advanced data management functions, including automatic test data recording, USB export in CSV format, and real-time graphs displaying operating events and alarms.
Additionally, adjustable temperature ramp rates allow users to control the speed of temperature increases during sensitive heating procedures.
Integrated safety and operational protection
Jeiotech vacuum ovens incorporate multiple safety mechanisms to protect laboratory personnel, samples, and equipment. The door assembly includes a pressure-relief design with upper and lower ventilation openings. Furthermore, a polycarbonate safety cover provides additional protection in the event of toughened glass breakage. The instruments also include overtemperature protection, an adjustable temperature limit, and electrical overcurrent protection.
Additionally, the controller lock function helps prevent unintended changes to operating settings. A temperature deviation alarm alerts users when chamber conditions move outside the acceptable range.
The system also records up to 36 operating events, including door openings, errors, and other operational changes.
The exterior design helps limit surface temperatures during high-temperature operation, supporting safer laboratory handling.
Applications in laboratory drying and sample preparation
Vacuum ovens support applications requiring controlled heating under reduced pressure, particularly when materials benefit from lower-temperature drying conditions. In pharmaceutical laboratories, researchers can use vacuum drying for suitable powders, formulations, and sample preparation procedures. Furthermore, chemical and materials science laboratories can use the equipment for drying moisture-sensitive materials, removing residual solvents, and preparing samples for further analysis.
Industrial quality control facilities can also use vacuum ovens for controlled drying and heating procedures where consistent temperature conditions are important. However, users should evaluate sample compatibility, solvent characteristics, vacuum pump specifications, and appropriate vapour-trapping arrangements before selecting operating conditions.
Why choose Apex Scientific?
Jeiotech vacuum ovens combine precise temperature control, durable chamber construction, flexible monitoring options, and integrated safety protection for laboratory drying applications.
Apex Scientific supplies laboratory equipment throughout South Africa and provides technical guidance to help customers select suitable vacuum drying solutions.
Learn more about laboratory technologies and applications through our Insights page, or Contact Apex Scientific to discuss vacuum oven specifications and requirements for your laboratory.
