Standard: ASTM C127/C136/D558/D698/D1559, EN 932-5/1097-5, BS 1377/1924
Laboratory Drying Oven, Digitmatic 620L
Laboratory Drying Oven is used to dry samples or materials to remove moisture and solvents. These ovens provide a controlled environment with precise temperature and timer for drying processes without causing damage to the samples, generating heat, and a ventilation system to remove moisture-laden air.
The design of a laboratory drying oven includes a chamber where samples are placed, heating elements to generate heat, and a ventilation system to remove moisture-laden air. NL Scientific Laboratory Drying Oven comes with digital controls for setting and monitoring temperature, timers for precise operation, and safety features to prevent overheating or accidents.
Laboratory Drying Ovens find applications in chemistry, biology, pharmaceuticals, food processing, materials science, and environmental testing. They are used for tasks such as drying glassware, sterilizing equipment, preparing samples for analysis, curing coatings or adhesives, and conducting stability tests on materials.
The NL Scientific Laboratory Drying Ovens exterior is a general-purpose laboratory used such as soil, concrete, asphalt, and aggregate. The internal frame is made of stainless steel sheet and the external casing is coated with hard-wearing paint & insulated with thick mineral wool. The heat generated by high precision digital controller & temperature range from RT + 10°C to 250°C. All capacity come with a fan circulation blower. The oven comes with a glass viewing door surrounding casing obtained with 50 mm thick fiberglass & steel shelves.
Features of Laboratory Drying Oven, Digimatic 620L
- Circulation airflow system: This feature ensures the even distribution of heat throughout the oven, which helps in maintaining uniform drying conditions for all samples regardless of their placement within the oven. It prevents hot spots and ensures efficient drying.
- Built-in ventilation point: This feature allows for the removal of fumes or gases generated during the drying process, ensuring a safe working environment and preventing the accumulation of potentially harmful substances within the oven.
- Digital LCD Screen: The digital screen provides easy-to-read information and control over the drying process. Here's how each feature on the screen works:
- Time setting: You can set the desired duration for the drying process, allowing for precise control over the drying time.
- Alarm alert: The oven can alert you when the drying process is complete or if there are any issues or abnormalities during operation, ensuring that you are promptly informed of any deviations from the set parameters.
- Real-time clock display: This feature shows the current time, providing convenient timekeeping functionality for scheduling and monitoring experiments or processes.
- Periodic setting: This feature allows you to set periodic intervals for the drying process, useful for applications where samples require intermittent drying or for conducting experiments with specific time-dependent parameters.
Technical Specifications of Laboratory Drying Oven, Digimatic 620L
| Model Number |
NL 1017 SS / 005 |
| Capacity |
620L |
Temp. Variation
|
RT+10-250 °C |
| Temp. Fluctuation |
±5.0 °C |
| Ambient Temperature |
+5-40 °C |
| Number of Heaters |
2kW x 3 Nos. |
| Number of Shelves |
5pcs |
| Load per Shelve |
25/kg 3 For Standard Configuration |
| Interior Dimension (mm) |
700(W) × 600(D) × 1500(H) |
| Exterior Dimension (mm) |
820(W) × 760(D) × 1930(H) |
| Power |
220~240 V, 1 Ph, 6 kW, 26 A, 50/60 Hz |
| Approx. Weight |
148 kg |
| Timer Range |
999 Hours |
*1 Copy of Manual Instruction
Optional Accessories
| Model Number |
Parts Description |
| NL 1017 SS / 005 - P001 |
620 Litres Shelves (Galvanized Steel) |
| NL 1017 SS - A001 |
Adjustable / Movable Trolley Base |
Standards
- ASTM C127/C136/D558/D698/D1559: ASTM International (formerly known as the American Society for Testing and Materials) develops and publishes voluntary consensus technical standards for a wide range of materials, products, systems, and services. The standards you listed are related to testing procedures for aggregates (C127, C136), moisture-density relations of soils (D558, D698), and asphalt mixtures (D1559). These standards provide guidelines for conducting tests to determine specific properties and characteristics of these materials, ensuring quality control and consistency in construction projects.
- EN 932-5/1097-5: EN refers to standards developed by the European Committee for Standardization (CEN). EN 932-5 specifies the methods for the determination of the water content of soil and rock by drying in an oven. EN 1097-5 provides procedures for the determination of the aggregate crushing value of coarse aggregates.
- BS 1377/1924: BS stands for British Standards, which are developed by the British Standards Institution (BSI). BS 1377 consists of a series of standards related to testing procedures for soils for civil engineering purposes. These standards cover various tests such as the determination of particle size distribution, moisture content, density, compaction, permeability, and shear strength of soils. BS 1924 deals with methods of testing for stabilized soils.
Test Procedure of Laboratory Drying Oven, Digimatic
- Preparation of the sample: Ensure that the sample is properly prepared according to the requirements of the specific test or analysis being conducted. This may involve obtaining a representative sample, reducing it to an appropriate size, and any necessary pre-treatment.
- Preheating the drying oven: Preheat the drying oven to the desired temperature as specified in the testing standard or procedure. This allows the oven to reach thermal equilibrium and ensures accurate and consistent drying conditions.
- Weighing the sample: Weigh the sample using an accurate balance and record its initial mass. This measurement serves as the baseline for determining the moisture content or any changes in mass during the drying process.
- Placing the sample in the drying oven: Place the sample in a suitable container or tray, ensuring that it is spread out evenly and not piled up to ensure uniform drying. Place the container with the sample inside the drying oven.
- Setting the drying parameters: Set the desired drying temperature and time parameters on the oven's control panel. These parameters may vary depending on the type of sample and the testing standard being followed.
- Initiating the drying process: Start the drying process by activating the oven. The circulation airflow system within the oven helps maintain uniform heat distribution and efficient drying of the sample.
- Monitoring the drying process: Monitor the drying process closely, observing any changes in the appearance or condition of the sample. Periodically check the sample's moisture content or mass at specified intervals to track the progress of drying.
- Endpoint determination: Continue the drying process until the sample reaches a constant mass or until the desired moisture content is achieved. This is typically indicated by consecutive weighings showing no further decrease in mass or a specific level of moisture content as required by the testing standard.
- Cooling and final weighing: Once the drying process is complete, allow the sample to cool inside the oven to room temperature before removing it. Weigh the dried sample again to determine its final mass.
- Calculation of results: Calculate the moisture content or any other desired parameters based on the initial and final mass measurements of the sample. Follow the specific formula or calculation method outlined in the testing standard or procedure being followed.
- Reporting results: Record all relevant data, including the initial and final mass of the sample, drying parameters, and calculated results. Prepare a test report documenting the procedure followed and the obtained results for future reference or analysis.
