How to maintain and detect the temperature and humidity recorder?

1. How to test the linear output throttle position temperature and humidity recorder?

① Remove the connecting plug of the temperature and humidity sensor at the throttle position, measure the resistance between the signal output terminal pin of the temperature and humidity sensor and the grounding terminal pin with a multimeter resistor, and connect and slowly change the throttle opening at the same time. The obtained resistance should increase continuously with the increase of the throttle opening, and there is no sudden change in the middle.

(2) Measure the resistance between the signal pin of the idle contact (IDL) of the temperature and humidity recorder and the grounding pin with a multimeter. When the throttle valve is closed, the resistance is 0 ohm, and the resistance should be infinite from a tiny opening of the throttle valve to full opening.

Second, how to judge the quality of temperature recorder by measuring resistance?

Put the temperature and humidity recorder in heated water, and use multimeter to detect the resistance of the sensor with negative temperature coefficient. If it decreases with the increase of water temperature, the temperature and humidity recorder is good. If there is no change, it means that the inlet air temperature and humidity recorder is damaged.

3. How to detect the signal of Hall camshaft position sensor with automobile oscilloscope?

When the engine is running, use the automobile oscilloscope to measure the signal waveform between the signal output end and the ground end of the Hall camshaft position sensor. The waveform on the oscilloscope should be a sawtooth square wave with an amplitude of 0 ~ 5V. With the increase of engine speed, only the waveform frequency increases, but the amplitude does not change, which is in line with the standard.

Application of Temperature and Humidity Monitoring in Cold Chain Logistics and Medicine

First, the application of temperature and humidity monitoring in cold chain logistics:

We all know that vaccines commonly used in life need to be refrigerated. Generally, the storage temperature is 2 ~ 8℃, and some need to be frozen at -18℃. In fact, there are more biological products that have strict requirements for storage and transportation environment, such as plasma, blood products, biological agents, etc. Some special biological products even need to be stored and transported with dry ice at a low temperature of -50℃. Once the temperature exceeds the limit, it will have a great impact on the quality of these biological products. Therefore, these fields related to life sciences have higher requirements for instruments and equipment than other industries, especially for the volume of monitoring instruments during transportation, because many biological products samples are transported by expensive air.

Solutions: acousto-optic alarm temperature and humidity recorder, production environment temperature and humidity monitoring, online monitoring incubator, laboratory and refrigerator freezer temperature and humidity monitoring, etc.

Second, the application of temperature and humidity monitoring in pharmaceutical industry:

This industry is rigorous and extremely competitive. Under the promise of China's entry into WTO, multinational pharmaceutical companies are eyeing up, including the top 20 multinational pharmaceutical companies in the world, which have successively set up shop in China. In the face of increasingly fierce market competition in the future, our pharmaceutical industry needs to make more efforts in terms of quality and safety, scientific research and development, scientific management, etc., improve management and service through information technology with more instruments and equipment, reduce costs, and enhance market competitiveness. With the popularization of GMP standard in pharmaceutical industry, there will be scientific operation rules in the whole process of pharmaceutical production from raw material control to pharmaceutical sales.

Solution: We will provide comprehensive and reliable products and solutions for the important links related to temperature and humidity in the pharmaceutical industry, such as the storage environment monitoring of pharmaceutical raw materials, the verification of pharmaceutical and pharmaceutical mechanical sterilization process, the monitoring of pharmaceutical transportation environment, the monitoring of laboratory purification workshop environment and equipment, etc., in order to improve your quality. Intelligent temperature recorder, high temperature recorder (sterilization) and warehouse temperature and humidity monitoring system.

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