Melting Boiling Point Apparatus SKY-1290/1291

Melting Boiling Point Apparatus SKY-1290/1291

The Melting / Boiling Point Apparatus SKY-1290 and SKY-1291 are microprocessor-controlled instruments designed for accurate determination of melting and boiling points, suitable even for dark-coloured samples. Both models feature a miniature furnace module for heating. They are equipped with front and rear glare-free illumination and a large magnifier to facilitate clear observation of the sample during the melting or boiling process. A "HOLD" key allows the user to retain the temperature reading at the point of phase transition. The SKY-1290 utilises a 4 Digits LED Display with a resolution of 1ºC. Its heating rate is controlled by a microprocessor-based closed-loop PID system with automatic ramp rate adjustment (Low - Auto - High). The SKY-1291 features a more detailed LCD, 16 X 2 Lines Alphanumeric Display with a higher resolution of 0.1ºC. It offers more flexible heating control with programmable ramp rates ranging from 2ºC to 40ºC per minute, adjustable via UP/DOWN keys during operation, as well as an auto selection option. Notably, the SKY-1291 is equipped with a USB to PC serial interface and has a memory capacity to store 100 sample readings with their locations. Both the SKY-1290 and SKY-1291 accommodate 3+1 samples, including a 6mm test tube for boiling point determination. They both employ a high-precision Grade “A” PT-100 Platinum Sensor for accurate temperature measurements. Specifications of Melting / Boiling Point Apparatus SKY-1290 and SKY-1291:

Specification	SKY-1290	SKY-1291
Temperature Range	Ambient to 350ºC	Ambient to 350ºC
Display	4 Digits LED	LCD, 16 X 2 Lines Alphanumeric
Resolution	1ºC	0.1ºC
Temperature Sensor	Grade “A” PT-100 Platinum Sensor	Grade “A” PT-100 Platinum Sensor
Sample Capacity	3+1 (including 1 x 6mm test tube)	3+1 (including 1 x 6mm test tube)
Heating Control	Microprocessor controlled closed loop PID, Automatic Ramp Rate	Microprocessor controlled closed loop PID, Multi selection Programable Ramp Rate (2ºC to 40ºC/minute)
Ramp Rates	Auto Adjustable (Low - Auto - High)	Programmable by UP/DOWN keys, Auto selection
Melting View	Front & Rear Glare-free illumination, Large Magnifier	Front & Rear Glare-free illumination, Large Magnifier
HOLD Function	Yes	Yes
Serial Interface	None explicitly mentioned in the source	USB to PC
Memory	None explicitly mentioned in the source	100 Samples with Location
Power Supply	230 V ± 10% AC, 50 Hz	230 V ± 10% AC, 50 Hz
Dimensions	36 X 29 X 24 Cm (Approx.)	36 X 29 X 24 Cm (Approx.)
Weight	6 Kg (Approx.)	6 Kg (Approx.)
Suitable for Dark Samples	Yes	Yes

Here are some frequently asked questions about the Melting / Boiling Point Apparatus SKY-1290 and SKY-1291:

• What are the main applications of the SKY-1290 and SKY-1291? These apparatus are designed for the accurate determination of melting and boiling points of various substances. They are suitable for use in pharmaceutical, chemical, and plastic industries, among others.
• Are the SKY-1290 and SKY-1291 suitable for all types of samples? Yes, both models are specifically designed to be suitable for dark-coloured samples as well as any other coloured samples.
• What is the temperature range offered by these melting point apparatus? Both the SKY-1290 and SKY-1291 offer a temperature range from ambient to 350ºC.
• How many samples can be analysed at the same time with the SKY-1290 and SKY-1291? Both models have a capacity for 3+1 samples. This includes three positions for melting point capillaries and one 6mm test tube for boiling point determination.
• What type of temperature sensor is used in these apparatus? Both the SKY-1290 and SKY-1291 utilise a high-precision Grade “A” PT-100 Platinum Sensor for accurate temperature measurements.
• What are the key differences in the display and resolution between the two models? The SKY-1290 features a 4 Digits LED Display with a resolution of 1ºC. In contrast, the SKY-1291 is equipped with a more detailed LCD, 16 X 2 Lines Alphanumeric Display offering a higher resolution of 0.1ºC.
• How is the heating rate controlled in the SKY-1290 and SKY-1291? The SKY-1290 uses a microprocessor-based closed-loop PID system with automatic ramp rate adjustment (Low - Auto - High). The SKY-1291 offers more flexible control with programmable ramp rates ranging from 2ºC to 40ºC per minute, adjustable via UP/DOWN keys during operation, and also includes an auto selection option.
• Do these apparatus have any features for data logging or connection to a computer? The SKY-1290 does not explicitly mention a serial interface in the provided source. However, the SKY-1291 is equipped with a USB to PC serial interface. Additionally, the SKY-1291 has a memory capacity to store 100 sample readings with their locations.
• Is it easy to observe the melting or boiling process with these apparatus? Yes, both models are equipped with front and rear glare-free illumination and a large magnifier to provide a clear view of the sample during the melting or boiling process.
• What is the function of the "HOLD" key? The "HOLD" key on both the SKY-1290 and SKY-1291 allows the user to retain the temperature reading displayed on the screen at the exact point when the phase transition (melting or boiling) is observed.
• What are the power supply requirements for the SKY-1290 and SKY-1291? Both models require a power supply of 230 V ± 10% AC, 50 Hz.