Verification and calibration device for dissolved oxygen tester
A technology for calibrating devices and measuring instruments, applied in the direction of testing water, material inspection products, etc., can solve the problem of no verification equipment, etc., and achieve the effect of uniform temperature, convenient water intake and drainage
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[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings.
[0022] Such as figure 1 , figure 2 and image 3 As shown, a dissolved oxygen measuring instrument verification and calibration device includes a housing 1, a constant temperature water tank 2, a detection water tank 3, a heater 4, a pressure sensor 5, an outer tank temperature sensor 33, an inner tank temperature sensor 6, and a floating cover for the detection tank 7. Anaerobic water tank floating cover 32, outer tank liquid level gauge 9, water filling and discharging device, aeration device, control box 10 and touch screen display 11, said housing 1 is provided with a constant temperature water tank 2 with an upper end opening, so The above constant temperature water tank 2 is provided with a detection water tank 3, and the detection water tank 3 penetrates into the constant temperature water tank 2 from the upper opening of the constant temperature wat...
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