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气调储粮已越来越受到广大粮食储藏工作者的肯定。大家都期望有一台称心如意的测氧仪器。本文向大家推荐一种最新型测氧仪。OX-8型数字显示测氧仪,是我厂在中科院上海治金所指导下,于85年通过技术鉴定的第四代产品(实样见封二图)。该仪器选用 I.C 大规模集成电路为主件,改变了分列元件繁烦、可靠性差的弊病,同时配以高灵敏长寿命的氧电极(不用更换薄膜,溶液能连续使用一年以上),所以整套仪器具有体积小,携带方便(可以装入口袋);功耗低、操作简便、寿命长、性能可靠等特点。使用时,拨动开关,控动采气珠,数字显示屏上就能清晰地读出被测气体中的氧百分比浓度,测定全过程只需20秒钟。它的用途除能分析气调、双低储粮粮堆的含氧量以外,对地下仓、窑洞仓尤有特异作用。地下仓库(包括大中型装运粮食的船舱)由于通风条件不好,粮食及微生物能消耗空气中的氧气,造成缺氧环境,对人生命有窒息死亡的危险。如果您身上带有装着发声报警的测氧仪,可以保您平安无事。它的工作原理是:在氧电极内有一个表面积很大的阳极(Ag/AgCl)及一个面积很小的阴积(Au、Pt)浸在外壳顶端包有透气膜的0.5M 氯化钾溶液中,二电极间施加0.63—0.64V 极化电压电路就有电流流过,其反应式为:
Air conditioning grain storage has been more and more the majority of grain storage workers affirmed. We all expect to have a well-intentioned oxygen measuring instrument. This article to recommend a new type of oxygen meter. OX-8 Digital Display Oxygen Meter, is the fourth generation product that passed the technical appraisal in 85 years under the guidance of Shanghai Metallurgical Institute of Chinese Academy of Sciences. The instrument uses IC LSI as the main part, which changes the shortcomings of troubled components and poor reliability. At the same time, it is equipped with the oxygen electrode with high sensitivity and long life (without changing the membrane and the solution can be continuously used for more than one year) The entire instrument has the advantages of small size, easy to carry (can be loaded into pockets), low power consumption, easy operation, long service life and reliable performance. When in use, the toggle switch is used to control the gas collecting bead, the percentage of oxygen in the gas to be measured can be read clearly on the digital display screen, and the whole process takes only 20 seconds. Its purpose in addition to the analysis of tone, double low grain storage outside the oxygen content of the underground warehouse, the cave is particularly specific role. Underground warehouses (including large and medium-sized shipments carrying food) Due to poor ventilation, food and microbes can consume oxygen in the air, resulting in an oxygen-deficient environment and the risk of death from suffocation. If you have a body with audible alarm of the oxygen meter, you can keep your safe. Its working principle is: in the oxygen electrode has a very large surface area of the anode (Ag / AgCl) and a small area of the product (Au, Pt) immersed in the top of the housing wrapped with a permeable membrane 0.5M potassium chloride solution In the two electrodes between the 0.63-0.64V polarization voltage circuit applied current flow, the reaction is: