- Product Describe
-
The hollow glass dew point meter developed by our company is in accordance with GB/T11944-2012,
GB50411-2019 "Hollow Glass" standard section 6.4 dew point test requirements, independently developed
testing instrument, used to detect whether condensation occurs on the inner surface of hollow glass samples under the conditions and methods specified by the standard, and to determine according to section 5.5 of the standard.
Technical Parameters
1. Temperature measurement range: -100℃~199.9℃
2. Accuracy: ±0.1℃
3. Precision: 0.5℃
4. Dimensions: Φ50x300mm
5. Sample size and quantity: 510mm x 360mm, 15 pieces
6. Power supply: Both the display meter and dedicated circuit use 9V stacked batteries (0.5) Ah. The display meter consumes
less than 0.7mA, and the dedicated circuit consumes less than 4mA.
Original glass thickness and contact time during testing at -60℃ (increasing by 5℃ each time) Original glass thickness/mm Contact time/min
Dry ice dew point meter usage method
1. Pour about 25mm of ethanol (or acetone) into the glass tube of the dew point meter, then add dry ice to lower the temperature to -60℃, turn on the digital thermometer, and insert the thermometer into the glass tube.
Observe the dew point meter temperature, and throughout the test add dry ice into the glass tube
to maintain the temperature at -60℃.
2. Pour a small amount of ethanol (or acetone) on the sample surface, closely contact the dew point meter with the sample surface, and hold for 3 minutes.
3. Remove the dew point meter and immediately observe whether there is condensation or frost on the inner surface of the glass sample.
Precautions
1. After the test, clean the inside and bottom of the dew point meter container.
2. Clean the thermometer probe thoroughly.
3. Organize the test report according to the content specified by the national standard.
4. The solvent used during the test is ethanol.
5. Ensure air circulation during the test.
6. Test conditions and procedures should be performed according to the standard.
7. Keep the contact surface between the glass sample and the dew point meter clean.
Company Profile
Hebei Yinfeng Experimental Instrument Co., Ltd. is a high-tech enterprise dedicated to the research and development, production, and sales of experimental instruments. The company is headquartered in Hebei Province, relying on the strong industrial foundation and technological innovation resources in the Beijing Tianjin Hebei region. It is committed to providing high-precision and high reliability testing equipment and solutions for material testing, engineering quality control, scientific research experiments and other fields.
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We provide customers with full-process services ranging from pre-sale consultation, customized solution design, equipment installation and commissioning to after-sale technical support.
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Hollow Glass Dew Point Meter
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Whatsapp/Tel: +86-15931715356,+86 16631790555
E-mail: info@cnhblabequipment.com
Add: Chengnan Industrial Zone, Xian County, Cangzhou City, Hebei Province