A fully automatic formaldehyde concentration detection device and its control method
A fully automatic technology for concentration detection, applied in measuring devices, analysis of suspensions and porous materials, scientific instruments, etc., can solve problems such as complex operation of detection methods and detection processes
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Embodiment 1
[0072] Such as Figure 1 to Figure 2 As shown, this embodiment provides a fully automatic formaldehyde concentration detection device, including an absorption tube 1, a colorimetric tube 2, and a spectrophotometer 3, and also includes a distilled water storage box 4, an absorption liquid stock solution storage box 5, and a color developer storage box. Box 6, air pump 7 and control unit 8;
[0073] The distilled water storage box 4 is sealed and connected to the colorimetric tube 2 and the absorption tube 1, and the absorption liquid stock solution storage box 5 and the color developer storage box 6 are both sealed and connected to the absorption tube 1, and the absorption tube 1 is sealed and connected to the colorimetric tube 2; Distilled water storage box 4, absorption liquid stock solution storage box 5, chromogenic agent storage box 6 and colorimetric tube 2 are all equipped with liquid level sensors; There is also a liquid pump inside; a cut-off valve and a flow meter ar...
Embodiment 2
[0082] Such as Figure 1 to Figure 2 As shown, this embodiment provides a control method for a fully automatic formaldehyde concentration detection device using the device in embodiment 1 to detect formaldehyde concentration, which specifically includes the following steps:
[0083] Step 1: Leak detection:
[0084] The ECU83 controls the touch display 86 to display and prompt the operator to block the sampling port of the sampling tube 11. After the operator blocks the sampling port of the sampling tube 11, the ECU83 judges whether the sampling tube 11 leaks air according to the information of the fifth flowmeter 112. If the tube does not leak, the equipment starts smoothly; if the ECU 83 judges that the sampling tube 11 is leaking, the device touch display 86 will prompt to replace the sampling tube 11 and re-check for leaks;
[0085] Step 2: Automatic cleaning:
[0086] (a) The ECU 83 issues a control command to sequentially control the opening of the first shut-off valve ...
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