When Zhou Jianhua rushed back to Tonglin Coal Mine, Chen Guodong was already waiting for him in the machine repair class. Seeing Zhou Jianhua enter the workshop, Chen Guodong immediately handed him the aluminum lunch box on the table: "Zhilu said that you haven't eaten yet, I will let the canteen prepare it for you, you can eat on the way." ”

"Eat on the way?" Zhou Jianhua took the lunch box, but he didn't understand what Chen Guodong meant.

"I called a car to take you there, you can eat in the car." Chen Guodong smiled apologetically and said, "Hehe...... There's no way, Secretary Cai is urging too much......" said and walked to the door of the workshop and beckoned into the distance, and soon a Jiefang truck drove over.

"Hehe...... Zhou Jianhua smiled: "It's still Director Chen who cares about me!" ”

"Hehehe, Xiao Zhou, there are more people who care about you now, and you won't lack this bite to eat wherever you go." Chen Guodong looked disappointed: "Today, in addition to Section Chief Yan and Section Chief Wang, there is also Secretary Cai who just said that he wanted you to go over to eat with him." ”

"Huh?! Then why are you still preparing food for me? Zhou Jianhua asked puzzled.

"You're my soldier! It is my responsibility and obligation to care for you. Always let his soldiers go to other people's places to eat and drink, won't this soldier have to desert sooner or later?! Chen Guodong said half-jokingly:

"Although Secretary Cai is my leader, I can't just let him dig up my soldiers - I heard that you went to Secretary Cai's house for dinner the day before yesterday, and helped Tonglin Machinery Repair Factory solve the technical problem?"

"Hahaha, Director Chen, you are really discerning! But am I the kind of person who can be abducted with just one meal? Zhou Jianhua replied with a smile, but he sincerely admired Chen Guodong's way of leading the troops.

"Alas! The golden scales are not in the pool! Chen Guodong sighed lightly and muttered: "You will leave my acre and three points of land sooner or later......"

"No matter what time it is, Director Chen, who loves soldiers like a son, will be a good leader that I respect!" Zhou Jianhua said sincerely.

At this time, electrician Zhuang Minghui had already helped Zhou Jianhua prepare the maintenance tools in Zhou Jianhua's tool kit and handed them over, Zhou Jianhua thanked Zhuang Minghui and hurriedly got into the car.

"You bring the bicycle with you, I listened to Secretary Cai's tone on the phone, I'm afraid he has something else to look for you." Chen Guodong reminded Zhou Jianhua again: "You don't have to come back today, just go home after you finish his business." ”

"It's good, Director Xie Xie takes care of it!" Zhou Jianhua hurriedly got out of the car and carried the bicycle into the cargo box of the car with the driver, and said in his heart that Director Chen really has the demeanor of a general.

The car soon drove to the Wengong River crossing. The waves on the surface of the Wengong River are rolling, and the wide river surface is already six or seven meters higher than before the rising water, and it is in danger of overflowing the embankment of the Wengong River. People and cars are coming and going along the embankment, and the people who protect the embankment are piling up mud, sand and gravel on the top of the embankment, and temporarily adding a small embankment nearly two meters high on top of the embankment to increase the height of the embankment and prevent the river from continuing to rise and overflow the embankment.

Among the various tractors, agricultural vehicles, and trucks shuttling back and forth on the road near the ferry, there is a brand-new white minivan parked on the side of the ferry road, which is particularly conspicuous, and the words "hydrological and water quality monitoring" are also displayed on the body. Zhou Jianhua recognized at a glance Cai Zhongming, the secretary of the Tonglin Commune, who was standing next to the car, who was talking with his back to Zhou Jianhua and two young men in suits. In recent years, suits have just appeared in big cities, and it is extremely rare to see them in this small county.

As soon as the truck stopped, Zhou Jianhua jumped out of the car with his toolkit and walked straight to Cai Zhongming: "Secretary Cai, hello! ”

"Oh! It's time for Xiao Zhou! Cai Zhongming turned his head and saw that it was Zhou Jianhua, so he greeted happily, and then quickly turned around and walked a few steps quickly to meet Zhou Jianhua's shoulders with his hand and whispered:

"Xiao Zhou! You told me yesterday that you can find you if you have mechanical or electronic problems, and today I happened to encounter such a thing, and I thought of you - there was a problem with a bacterial incubator in this car in the morning, and that thing was made in Shanghai, and it is said that even the provincial capital can not be repaired, so it can only be repaired by the manufacturer in Shanghai, and now it is urgently needed, and it must be impossible to wait if it is sent to Shanghai for repair - are you sure to repair this? ”

"Bacterial incubator? It's just an incubator...... As for such a big move? Zhou Jianhua muttered, "But...... If a special part or component is broken, it is possible to take it back and repair it...... There are very few components on the market today. ”

In the early 80s, the reform and opening up had just begun, and the domestic electronics industry was very backward, especially in such an era of planning economy, most of these productive materials were circulated in state-owned units, and in the families of ordinary people in this era, only radios and flashlights could be regarded as household electricity.

In recent years, a small number of families with better conditions have electric fans and televisions, and at this time, there seems to be no individual electrical repair shops in Jiancheng County. In Zhou Jianhua's impression, there is only one store under the TV station in the entire Jiancheng County that is operating electrical components, and the models and specifications of electrical components there are extremely limited.

"Oh......" Cai Zhongming frowned: "So you may not be able to cultivate well?" ”

"The incubator does not belong to mechanical and electrical equipment, it can only be regarded as electrical equipment, and the structural parts inside are not easy to have problems, and it should be the electrical part if it is broken, and some of the problems of the electrical part will be very complicated, and some will be very simple...... Now that I'm here, I might as well give it a try. Although Zhou Jianhua didn't think it was a big problem, he didn't say it all.

"Okay...... Then give it a try. Cai Zhongming frowned and nodded, then turned around and walked back to the two young men in suits next to the van with Zhou Jianhua's shoulders and introduced: "Technician Chen Jilu, Technician Zhang Jilu, this is the Master Xiao Zhou I just said, let him help you take a look - Xiao Zhou, these two are the Chen Jilu and Zhang Jilu technicians sent by the province to support the flood control work in our county, and they are specially responsible for operating the equipment on this hydrological and water quality monitoring vehicle. ”

"Hello, Master Xiao Zhou!" Technician Chen Jilu, who was a little older and looked to be in his early 30s, walked up and greeted Zhou Jianhua, looked Zhou Jianhua up and down, frowned slightly and asked, "Have you repaired water quality testing equipment before?" ”

"Nope! Haven't repaired! Zhou Jianhua replied truthfully.

Technician Chen heard Cai Zhongming say that there is a master who is very powerful, industrial equipment and household appliances can be repaired, and he thought it would be good to invite him to give it a try, but as soon as he saw Zhou Jianhua, he found that this so-called master was just a big boy, and he had doubts in his heart, and after seeing Cai Zhongming and Zhou Jianhua muttering a few words, his face was no longer excited before, and he was even more uneasy, and now Zhou Jianhua answered the word "no" so simply, without even a trace of embarrassment, he couldn't help but worry. Then said:

"Our equipment is expensive...... If you don't have experience, don't take the risk, right? ”

This equipment can only be produced in Shanghai in China, and he doesn't want to use it as a toy for a country master, but the safety of this equipment is more important to him than the flood situation in Sword City.

Cai Zhongming, who was on the side, frowned slightly when he heard Technician Chen say this, but he couldn't say anything.

Cai Zhongming pedaled his bicycle over in the morning to inspect the flood prevention and rescue work of the members of the Tonglin Commune, and met on the river embankment Deputy County Magistrate Zhou, who was in charge of agriculture, and Director Zhang and Deputy Director Wang of the Agricultural and Water Affairs Bureau.

Cai Zhongming thought of Zhou Jianhua's words yesterday, so he recommended Zhou Jianhua to try, and now seeing that Chen Jilu had the intention of refusing Zhou Jianhua's repair, he thought to himself, calling Zhou Jianhua is just here to help, as for whether he can help, it is not something he can control.

"Technician Chen, since I'm already here, I'll help you take a look - this kind of equipment is not complicated, not to mention repair, even designing one is not difficult. The key now is to see what kind of fault it is, whether it needs to replace special accessories, if the accessories are complete, it is a matter of minutes to repair such a thing! Even if I can't repair it because I don't have accessories, at least it can be convenient for you to contact the Shanghai manufacturer for repair, right? Zhou Jianhua said lightly.

"Hehe, this equipment is the most advanced model of its kind in China...... It's not as simple as you say. Technician Chen Jilu had a mocking expression on his face, and said in his heart, you just blow it!

"No matter how advanced it is, it's just an incubator...... Well, I'll check it out for you in a few minutes. Zhou Jianhua said quietly.

"That'...... Well, you can check it out. Technician Chen Jilu glanced at Cai Zhongming, and said that if he didn't even let him check it, it would be too bad for Secretary Cai, and besides, even if he checked it, it wouldn't be damaged, so he reluctantly agreed, and then asked Zhang Jilu on the side to take Zhou Jianhua to the car to check the equipment on the car.

At this time, the truck driver who sent Zhou Jianhua over had already helped Zhou Jianhua lift the bicycle off the car and park it next to the van, nodded at Zhou Jianhua, and then got back into the car and drove back to Tonglin Coal Mine.

Zhou Jianhua followed Technician Zhang into the brand-new Changhe minivan and took a cursory glance at the equipment in the car.

There are several kinds of hydrological and water quality monitoring and testing equipment in the car, the main equipment is several water temperature and water level flow rate monitors, physical and chemical rapid determination boxes and portable bacterial incubators, these equipment can do monitoring, inspection content is much less than that of later generations, and the degree of automation of sampling and analysis is even more primary, after all, these are still domestic products in the early 80s of the 20th century.

The failure was the bacterial incubator, which is mainly used to detect indicators such as coliform bacteria and total bacterial count, so as to monitor whether the urban and rural water has been accidentally polluted in the event of a flood disaster, so as to ensure the drinking water safety of urban and rural residents in the event of a flood disaster.

Surgeon Zhang Jilu introduced: "This bacterial incubator is usually used to cultivate bacteria at a constant temperature, but after the heating and heating reached the set temperature this morning, it still continued to heat and heat up, and the temperature of the constant temperature room could not be kept at the set temperature, resulting in the invalidation of the cultured bacterial liquid......

As soon as Zhou Jianhua heard it, he knew that it must be a problem with the temperature control circuit.

Zhou Jianhua opened the back shell of the bacterial incubator and took a closer look, it turned out that the temperature control of the bacterial incubator was a non-contact temperature control circuit, and an imported thermistor was used as a temperature sensor, and the working temperature of the constant temperature chamber was adjusted by a potentiometer with a pointer, and the power supply used was AC and DC, which could be powered by a car battery.

In this era, such a control circuit can be regarded as a relatively high-tech content. To achieve this constant temperature control function, some traditional components can also be used to do, but the volume will be relatively large, and the accuracy of temperature control will be poor.

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