Melting point of the melting point determination
1. Input the required initial temperature by the initial temperature. Set the initial temperature lower than the melting point of the substance to be tested (not more than 280 ℃). According to the linear heating rate, select the following table; for user's reference.
2. Turn on the power supply. The lamp can be seen through the observation window. The silicone oil is stirred by the motor to indicate that the instrument is on. At the same time, the display shows the current temperature of the oil bath, and the instrument automatically reaches the preset temperature Automatic balance, to modify the preset temperature, then re-enter the desired preset temperature, click "put" button.
3. Preheat the instrument for 20 minutes. Place the capillary containing the substance to be tested into the oil bath tube through the small hole in the insertion port. (The insertion and removal of the capillary tube must be performed with caution, without bending).
4. According to the need to select the heating rate, press the corresponding key, the upper left there is a light indication, indicating that the instrument has entered a linear heating state, fourth gear linear heating rate key can be changed at any time, for unknown melting point samples can be fast After the initial melting temperature range and precision measurement.
5. Through the observation window capillary sample melting process, when the initial melt, press the "press the melt" key, the initial melt storage indicator light, indicating the initial melt has been stored. When the final melt appears, press the final melt key, the number on the display is maintained, this value is the final melt value.
Note: If a malfunction occurs, you can not modify the initial and final melt readings and have to be re-measured.
6. To read out the primary melt, click the primary melt readout key. The number on the display is the initial melt value, but after a few seconds the number on the display transitions to the final melt value. This can always be read out.
7. Carefully remove the capillaries that have been measured.
8. If you want to repeat the same type of sample, then click the "put" button, the instrument automatically enter the initial temperature setting, and so on after the balance repeat steps 3-7.
9. If you want to test the melting point of other substances, you can dial the initial temperature by re-enter the new starting temperature, and then click the "reset" button to repeat the steps 3-7 can be.
10. It is generally recommended to measure the low melting point material first, after measuring the high melting point material
11. If there is any problem in the process of using the instrument, contact the engineer in time to avoid affecting your experimental operation.
The company specializes in producing and selling various types of melting point instrument, welcome to consult procurement.
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