High-Resolution Digital Melting Point Apparatus 3935 | Visual & Microcontroller Control
The Digital Melting Point Apparatus Model 3935 is a highly sophisticated Microcontroller Visual Melting Point instrument designed for the accurate measurement of melting points and the precise determination of the melting range of solid samples. This apparatus leverages modern technology to ensure high accuracy and ease of operation, making it extremely useful for laboratories requiring stringent quality control, such as the pharmaceutical industry. The instrument is also capable of measuring the boiling point of solid and liquid samples.
Key Operational Features
This model enhances traditional melting point determination by employing automatic observation via a high-resolution camera.
• Visual Confirmation: The apparatus features a Graphical LCD display coupled with a colored 7" TFT screen and an integrated high resolution camera to provide clear, real-time visual monitoring of the sample status as it undergoes phase transition.
• Uniform Heating: It utilizes a Silicon Oil-Bath (approximately 200 ml capacity) enclosed with a Teflon cover and fitted with an immersion heater. An in-built magnetic stirrer with adjustable speed ensures uniform heat distribution throughout the oil bath, which is critical for obtaining precise results.
• High Accuracy: The instrument offers a digital temperature resolution of 0.1°C, ensuring highly accurate measurement readings.
• Sample Preparation: The oil bath cover includes dedicated holes for holding three capillaries, one boiling point tube, and one temperature sensor. Sample material must be fine powder, properly dried, and packed to a height of 4 to 6 mm.
Advanced Functionality and Compliance
The Microcontroller Visual Melting Point Apparatus Model 3935 includes features designed for regulatory compliance and advanced testing protocols:
• Programmable Heating: The plateau temperature and heating ramp rates are fully programmable. The instrument can rapidly preheat to a programmed plateau temperature (set a few degrees below the expected melting point) and then heat slowly based on a user-selectable Ramp Rate (programmable at a scale of 1–10).
• Rapid Melt Method: A facility is available for evaluating unknown or new products using the Rapid Melt Method.
• Data Security and Storage: The system supports 3-Tire Password Protection (Admin, Supervisor, and User login) for enhanced security and accountability. It can store up to 300 last results, along with 100 setup data configurations (99 different test setups programmable by the user).
• Calibration and Validation: Features include up to 5 Point Temperature Calibration using Point to Point or Polynomial Method, and Validation is available as per Pharma Compliance (catering to 21CFR output requirements).
• Output: It provides online/offline printing capability through an RS232 interface for serial printing, allowing results to be documented with real-time and date.
Technical Specifications
|
Aspect
|
Specification
|
|
Model
|
3935
|
|
Instrument Type
|
Microcontroller Visual Melting Point Apparatus
|
|
Temperature Range
|
Ambient temperature to 300 ºC
|
|
Temperature Resolution
|
0.1 ºC
|
|
Temperature Sensor
|
PT 100
|
|
Display
|
7″ Graphical LCD Display (240 x 128 pixels Resolution) / Colored TFT Screen
|
|
Observation
|
High resolution Camera (In built)
|
|
Heating Mechanism
|
Immersion Heater
|
|
Heating Medium
|
Silicon Oil-Bath (approx. 200 ml capacity) with Teflon cover
|
|
Stirrer
|
In-built magnetic stirrer with adjustable speed
|
|
Ramp Rate
|
Programmable at scale of 1 – 10
|
|
Capillary Capacity
|
3 Capillary tubes (for solid sample melting point)
|
|
Sample Size (Solid)
|
Fine powder, 4 to 6 mm high
|
|
Capillary Glass Tubes
|
75 mm length
|
|
Storage
|
Up to 300 last results (plus 100 setup data)
|
|
User Access
|
3-Tire Password Protection (Admin, Supervisor, User)
|
|
Interface
|
RS232 (for serial printing)
|
|
Compliance
|
Features available as per Pharma Compliance (e.g., 21CFR)
|
|
Power
|
230 V ± 10 % AC, 50 Hz
|
|
Approximate Weight
|
12 Kg
|
|
Approximate Dimensions (L X B X H)
|
375 x 300 x 330 mm
|
