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The ZGD80 fully automatic dropping point and softening point tester not only provides users with accurate, stable, and reliable test results, but also brings users an efficient and convenient testing experience. High definition videos allow for easy and clear viewing of the entire process of sample state changes, while standardized cups and measurement methods ensure comparability of results.
Application Area:
Measuring the dropping point and softening point of amorphous polymer compounds to determine their physical and chemical properties such as concentration, degree of polymerization, and heat resistance. This method is used for component testing or quality control of coal tar, asphalt, rosin, Vaseline, lubricating oil, synthetic resins, and various ointments, and can replace traditional Ubbelohde method dropping point measurement and ring-and-ball softening point measurement. Photoelectric detection, temperature program control, digital display reading, high accuracy, stable performance. GB8728-88 standard is adopted, which complies with the Chinese Pharmacopoeia 2020 edition, ASTM D3954, DIN and ISO related standards.
The Fully Automatic Dropping Point and Softening Point Tester perfectly combines high-precision temperature control technology and high-definition video camera technology, not only providing users with accurate, stable, and reliable test results, but also bringing users an efficient and convenient testing experience. High definition videos provide a convenient and clear view of the entire melting process of the sample, with automatic detection and real-time graph display, making it easy for users to accurately measure the melting point and melting distance of the sample.
Audit Tracking: Complete version of audit tracking and user hierarchical permission management. Super administrators can modify all passwords and usernames and trace them. Super administrators can modify all operator permissions. User accounts have two functions: disabled and enabled. When personnel change temporarily and the account is not in use, it can be locked and unblocked. The USB drive can export PDF and Excel data with tamper proof function.
A comprehensive audit trail should have relevant records for login, logout, data modification, time, operation steps, and exporting USB drives.
User management: hierarchical management, super administrator assigns permissions, administrators can create multiple users, each user can use their own username, enter username and password when logging in, and user accounts have two functions: disabled and enabled
The highest authority can modify others' usernames and passwords, and can be traced.
Data retrieval function: convenient for users to quickly find the desired data in a large number of databases.
Graph function: During the testing process, the graph can be displayed in real time for easy analysis. The graph and video images can be replayed.
Memory: extensible
Main Technical Parameters:
Model | ZGD80 |
Temperature range | Normal temperature up to 400 °C |
Measurement reproducibility: | At <200°C: ± 0.3°C At 200°C-300°C: ± 0.7°C |
Test method | Cup-and-ball method |
Heating rate | 0.1-20 °C/Min (set arbitrarily) |
Audit trial | Yes |
User management | Grading management (Level 3) |
Display mode | 8 Inch color screen |
Audit trial | comply with 21CFR Part 11, audit tracing, pharmacopoeia and electronic signature |
Video module | taking video photo / recording video |
Video observation | Hd video visual sample changes; |
Temperature minimum display value | 0.1℃ |
Detection mode | Fully automatic (compatible with manual operation) |
Experimental scheme | Yes |
Memory space | 64G |
Data interface | USB, RS232 Network port |
Handling capacity | 2 pcs / batch |
Compliance with the GLP requirements | Yes |
Power supply | 220V 50Hz, power: 120W |
Meet criteria | Chinese Pharmacopoeia 2015, per ASTM (D3204, D3461, D3954, D6090)，DIN ( 51920)，ISO 4625-2 and the European Pharmacopoeia |
Operation Steps and Use Methods of Dropping Point / Softening Point
1. Introduction of the heating furnace body structure
Shanghai Zhuoguang automatic drop point softening point instrument, the structure diagram of heating furnace body is as shown in Fig. 13:
graph 13
（1） Heating furnace structure: the heating furnace includes the heating body, embedded heating sheet and platinum resistance sensor; the middle empty slot is the sample chamber, for putting into the sample combination: including fat cup clamping head, fat cup with the sample, the lower slit of the fat cup.
There is a light source under the heating body, the light through the slit of the slit hole, shining on the signal sensor. When the sample softens, drops and blocks the optical hole, the signal sensor sends the signal and the instrument records the temperature.
（2） Sample combination: the middle is the fat cup for placing the sample; the top is the clamp for holding the upper end of the fat cup and connecting the handle; the bottom is the slit sleeve for passing the light and catching the dripping sample when it reaches the dropping or softening point.
（3） Inspection of the composite slit sleeve: click the "Test" button on the main interface, set the preset temperature to no more than 40 degrees, and click the "Automatic Detection" button to enter the automatic test interface.
The sample combination of the empty fat cup is put vertically into the furnace sample chamber, so that the lower observation mouth of the slit sleeve is parallel in front, and the light transmission hole of the furnace body and the light transmission hole of the slit sleeve are parallel to ensure that the detection hole can penetrate light.
2. Methods of Sample Preparation
2.1 Preparation of dropping point samples using a 2.8mm drop hole diameter fat cup:
Dropping point determination samples are mostly paste like substances, and the samples are generally not pre treated. The following two methods can be used to fill the fat cup:
Method 1: When measuring the grease according to ASTMD566-64 (73), the accessory sample rod rotates along the upper and lower ports of the grease to remove the middle cone grease. Figure 14 below:
graph 14
Method 2: According to pharmacopoeia standards such as DIN51801-1 (72), the fat cup should be filled completely and leveled, and the top and bottom should be scraped flat with a scraper.
2.2 Preparation of softening point samples using a 6.35mm drop hole diameter fat cup:
Softening point determination is mostly for solid block shaped samples, which need to be crushed and then heated and melted in a container, and do not use naked flames. Simultaneously stir continuously during the heating process to remove moisture from the sample at a higher temperature until there is no longer any bubbling phenomenon in the sample.
Preheat the fat cup on the copper plate, then pour in the melted sample until it overflows. After the sample cools and solidifies, use an overheated scraper to flatten the surface. Do not create gaps or bubbles inside the fat cup.
When measured according to ASTM D3461-86 or (GB8728-88) standards, a heavy ball (3/8 steel ball) should be placed in the center of the fat cup filled with the sample. Or measure according to other relevant standards.
3. Operation Method
Step 1: Turn on the power switch and preheat the instrument for 10 minutes.
Step 2: Enter the main interface and select 'Test'. For example, if the softening point of the sample to be tested
is around 65 ℃, input the sample name: Sample 01, starting temperature of 55 ℃, heating rate of 1 ℃/min, and stopping temperature of 75 ℃.
Step 3: After the temperature stabilizes at 65 ℃ (there will be at least 4 beeps from the buzzer), place the test assembly that has been loaded with the sample. Make the gap at the lower part of the slit sleeve clamp onto the positioning bracket inside the furnace. (Note: The slit sleeve and furnace body transparent hole can ensure light transmission. Refer to page 15 (3) for inspection of the combined slit sleeve.)
Step 4: After laying out the sample and waiting for the temperature to stabilize at 60 ℃, (Note: After placing the sample, the furnace temperature may slightly decrease, so it is recommended that the buzzer prompt at least 4 times to raise the temperature.), press the "raise" button, when the tested sample reaches the dropping point or softening point, the corresponding temperature will be displayed on the screen after the "dropping/softening point".
Step 5: After displaying the dropping point softening point temperature, immediately remove the sample. Observe if there is any sample dripping. If there is no sample dripping that covers the slit sleeve through the light hole, it indicates that the test is invalid.
If there is a sample droplet blocking the slit sleeve through the light hole, and the test value is valid, you can press the [Save] button to save the data or press the [Print] button to print the data. If you want to change the tested sample, press the [Return] button to return to the testing interface and set the corresponding parameters.
The ZGD80 fully automatic dropping point and softening point tester not only provides users with accurate, stable, and reliable test results, but also brings users an efficient and convenient testing experience. High definition videos allow for easy and clear viewing of the entire process of sample state changes, while standardized cups and measurement methods ensure comparability of results.
Application Area:
Measuring the dropping point and softening point of amorphous polymer compounds to determine their physical and chemical properties such as concentration, degree of polymerization, and heat resistance. This method is used for component testing or quality control of coal tar, asphalt, rosin, Vaseline, lubricating oil, synthetic resins, and various ointments, and can replace traditional Ubbelohde method dropping point measurement and ring-and-ball softening point measurement. Photoelectric detection, temperature program control, digital display reading, high accuracy, stable performance. GB8728-88 standard is adopted, which complies with the Chinese Pharmacopoeia 2020 edition, ASTM D3954, DIN and ISO related standards.
The Fully Automatic Dropping Point and Softening Point Tester perfectly combines high-precision temperature control technology and high-definition video camera technology, not only providing users with accurate, stable, and reliable test results, but also bringing users an efficient and convenient testing experience. High definition videos provide a convenient and clear view of the entire melting process of the sample, with automatic detection and real-time graph display, making it easy for users to accurately measure the melting point and melting distance of the sample.
Audit Tracking: Complete version of audit tracking and user hierarchical permission management. Super administrators can modify all passwords and usernames and trace them. Super administrators can modify all operator permissions. User accounts have two functions: disabled and enabled. When personnel change temporarily and the account is not in use, it can be locked and unblocked. The USB drive can export PDF and Excel data with tamper proof function.
A comprehensive audit trail should have relevant records for login, logout, data modification, time, operation steps, and exporting USB drives.
User management: hierarchical management, super administrator assigns permissions, administrators can create multiple users, each user can use their own username, enter username and password when logging in, and user accounts have two functions: disabled and enabled
The highest authority can modify others' usernames and passwords, and can be traced.
Data retrieval function: convenient for users to quickly find the desired data in a large number of databases.
Graph function: During the testing process, the graph can be displayed in real time for easy analysis. The graph and video images can be replayed.
Memory: extensible
Main Technical Parameters:
Model | ZGD80 |
Temperature range | Normal temperature up to 400 °C |
Measurement reproducibility: | At <200°C: ± 0.3°C At 200°C-300°C: ± 0.7°C |
Test method | Cup-and-ball method |
Heating rate | 0.1-20 °C/Min (set arbitrarily) |
Audit trial | Yes |
User management | Grading management (Level 3) |
Display mode | 8 Inch color screen |
Audit trial | comply with 21CFR Part 11, audit tracing, pharmacopoeia and electronic signature |
Video module | taking video photo / recording video |
Video observation | Hd video visual sample changes; |
Temperature minimum display value | 0.1℃ |
Detection mode | Fully automatic (compatible with manual operation) |
Experimental scheme | Yes |
Memory space | 64G |
Data interface | USB, RS232 Network port |
Handling capacity | 2 pcs / batch |
Compliance with the GLP requirements | Yes |
Power supply | 220V 50Hz, power: 120W |
Meet criteria | Chinese Pharmacopoeia 2015, per ASTM (D3204, D3461, D3954, D6090)，DIN ( 51920)，ISO 4625-2 and the European Pharmacopoeia |
Operation Steps and Use Methods of Dropping Point / Softening Point
1. Introduction of the heating furnace body structure
Shanghai Zhuoguang automatic drop point softening point instrument, the structure diagram of heating furnace body is as shown in Fig. 13:
graph 13
（1） Heating furnace structure: the heating furnace includes the heating body, embedded heating sheet and platinum resistance sensor; the middle empty slot is the sample chamber, for putting into the sample combination: including fat cup clamping head, fat cup with the sample, the lower slit of the fat cup.
There is a light source under the heating body, the light through the slit of the slit hole, shining on the signal sensor. When the sample softens, drops and blocks the optical hole, the signal sensor sends the signal and the instrument records the temperature.
（2） Sample combination: the middle is the fat cup for placing the sample; the top is the clamp for holding the upper end of the fat cup and connecting the handle; the bottom is the slit sleeve for passing the light and catching the dripping sample when it reaches the dropping or softening point.
（3） Inspection of the composite slit sleeve: click the "Test" button on the main interface, set the preset temperature to no more than 40 degrees, and click the "Automatic Detection" button to enter the automatic test interface.
The sample combination of the empty fat cup is put vertically into the furnace sample chamber, so that the lower observation mouth of the slit sleeve is parallel in front, and the light transmission hole of the furnace body and the light transmission hole of the slit sleeve are parallel to ensure that the detection hole can penetrate light.
2. Methods of Sample Preparation
2.1 Preparation of dropping point samples using a 2.8mm drop hole diameter fat cup:
Dropping point determination samples are mostly paste like substances, and the samples are generally not pre treated. The following two methods can be used to fill the fat cup:
Method 1: When measuring the grease according to ASTMD566-64 (73), the accessory sample rod rotates along the upper and lower ports of the grease to remove the middle cone grease. Figure 14 below:
graph 14
Method 2: According to pharmacopoeia standards such as DIN51801-1 (72), the fat cup should be filled completely and leveled, and the top and bottom should be scraped flat with a scraper.
2.2 Preparation of softening point samples using a 6.35mm drop hole diameter fat cup:
Softening point determination is mostly for solid block shaped samples, which need to be crushed and then heated and melted in a container, and do not use naked flames. Simultaneously stir continuously during the heating process to remove moisture from the sample at a higher temperature until there is no longer any bubbling phenomenon in the sample.
Preheat the fat cup on the copper plate, then pour in the melted sample until it overflows. After the sample cools and solidifies, use an overheated scraper to flatten the surface. Do not create gaps or bubbles inside the fat cup.
When measured according to ASTM D3461-86 or (GB8728-88) standards, a heavy ball (3/8 steel ball) should be placed in the center of the fat cup filled with the sample. Or measure according to other relevant standards.
3. Operation Method
Step 1: Turn on the power switch and preheat the instrument for 10 minutes.
Step 2: Enter the main interface and select 'Test'. For example, if the softening point of the sample to be tested
is around 65 ℃, input the sample name: Sample 01, starting temperature of 55 ℃, heating rate of 1 ℃/min, and stopping temperature of 75 ℃.
Step 3: After the temperature stabilizes at 65 ℃ (there will be at least 4 beeps from the buzzer), place the test assembly that has been loaded with the sample. Make the gap at the lower part of the slit sleeve clamp onto the positioning bracket inside the furnace. (Note: The slit sleeve and furnace body transparent hole can ensure light transmission. Refer to page 15 (3) for inspection of the combined slit sleeve.)
Step 4: After laying out the sample and waiting for the temperature to stabilize at 60 ℃, (Note: After placing the sample, the furnace temperature may slightly decrease, so it is recommended that the buzzer prompt at least 4 times to raise the temperature.), press the "raise" button, when the tested sample reaches the dropping point or softening point, the corresponding temperature will be displayed on the screen after the "dropping/softening point".
Step 5: After displaying the dropping point softening point temperature, immediately remove the sample. Observe if there is any sample dripping. If there is no sample dripping that covers the slit sleeve through the light hole, it indicates that the test is invalid.
If there is a sample droplet blocking the slit sleeve through the light hole, and the test value is valid, you can press the [Save] button to save the data or press the [Print] button to print the data. If you want to change the tested sample, press the [Return] button to return to the testing interface and set the corresponding parameters.
