Hollow glass dew point meter product operation method - Database & Sql Blog Articles

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I. Overview of the Hollow Glass Dew Point Meter

The hollow glass dew point meter is designed in accordance with GB/T 11944-2012 "Insulated Glass Standard," using a semiconductor refrigeration system as the main cooling method, supported by a compressor for auxiliary cooling. It features a digital temperature display, making it easy to operate and providing clear visual feedback.

II. Technical Specifications of the Hollow Glass Dew Point Meter

  • Power: 500W
  • Power Supply: AC 220V
  • Temperature Measurement Accuracy: ±0.5°C
  • Minimum Operating Temperature: -60°C

III. How to Use the Hollow Glass Dew Point Meter

  1. Plug the power cable into the socket. First, press the cooling button to activate the auxiliary cooling for 10 minutes, then turn on the main power switch.
  2. The system will automatically adjust the temperature according to the set value (-60°C, -55°C, -50°C, -45°C, or -40°C).
  3. When the desired temperature is reached, the system will sound an alarm for 10 seconds, then start the test timer. After the set time is completed, another alarm will signal the end of the test.
  4. After the test, first turn off the main power, then disable the auxiliary cooling. Note: Do not turn off the auxiliary cooling during the test, as this may affect the results.

Important: The device has two independent cooling systems: one is the semiconductor refrigeration controlled by the meter, and the other is the compressor-based auxiliary cooling manually operated via the cooling button. Always allow 10 minutes of pre-cooling before starting the test. Follow the instructions carefully to avoid damage or incorrect results.

IV. Parameter Settings for the Hollow Glass Dew Point Meter

1. Time Parameter Settings

On the left side, you can set the working time, and on the right side, the alarm time. Both are adjustable in units of minutes.

2. Temperature Parameter Settings

a. Main Control Temperature Setting: Press the “SET” button. The lower digital display will flash. Use the “>” key to move the cursor, and use “∧” and “∨” to adjust the temperature. Press “SET” again to save the settings (the main temperature is displayed with one decimal place).

b. Alarm Temperature Setting: Hold the “SET” button for 3 seconds to enter the parameter setting mode. Continue pressing “SET” until you reach the “LOAL” item (alarm temperature, which is an integer). Ensure that the LOAL value matches the main temperature setting. Whenever the main temperature changes, the alarm temperature should be updated accordingly.

This dew point meter is ideal for testing the quality of insulated glass units, ensuring they meet industry standards. Proper operation and regular calibration are essential for accurate and reliable results. Always refer to the user manual for detailed guidance and safety precautions.

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