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DFY-12型碳硫分析仪是应用电导法来测定的,在测低碳时还可以,但测定高含量碳时就显得麻烦。一般采用减少称样量的办法。但这样给测定硫带来麻烦。为了解决这一矛盾,我们采用增加碳的吸收液体积的办法,即将原有的30毫升量按倍数增加,这样既可以达到扩大测定碳的目的,又不会影响测硫的结果,其目的由通过改进后电路来达到的(见图)。电路动作原理及使用:当按下仪器之“换液”开关时,此时时间继电器SJ_1、SJ_2线圈同时得电并延时吸动其各迴路触点。电路动作过程如下:由于SJ_1延时打开,即5、6暂时闭合,此时碳硫放液电磁阀得电吸动,将碳硫吸收杯中的废液放掉。当SJ_1延时一结
DFY-12-type carbon and sulfur analyzer is the use of conductivity method to determine the measured carbon can be, but when the determination of high levels of carbon becomes cumbersome. Generally reduce the sample size method. But this is troublesome for measuring sulfur. In order to solve this contradiction, we adopt the method of increasing the absorption liquid volume of carbon, that is, multiplying the original 30 ml by a multiple, so that the purpose of expanding the determination of carbon can be achieved without affecting the sulfur measurement result. By improving the circuit to achieve (see Figure). Circuit operation principle and use: When pressing the instrument “liquid change ” switch, at this time time relay SJ_1, SJ_2 coil at the same time get power and delay the absorption of each circuit contact. Circuit movement process is as follows: SJ_1 delayed open, that is, 5,6 temporarily closed, this time carbon-sulfur discharge solenoid valve was electroplated, the carbon-sulfur absorption of waste in the cup let go. When SJ_1 delay a knot