Before 1995, the use of basically mechanical pen with paper recorder, it is through the recording pen in the recording paper to draw curves, so as to achieve the purpose of recording and saving data. Because of the complexity of its pen servo system, mechanical moving parts, so the reliability is poor. At the same time, the mechanical recorder exists in a single display mode (curve recording), subsequent data processing difficulties, high long-term operating costs (need to regularly replace the recording paper and ink) and other inherent defects. In 1996, ZJDCC took the lead in launching the JL20 series paperless recorder to the market, paperless recorder using microprocessors, liquid crystal display and semiconductor memory, completely overcoming the shortcomings of the mechanical recorder, paperless recorder to replace the mechanical recorder has become an indisputable fact.
In the ensuing nearly a decade of development, paperless recorder market dominated the overwhelming advantage of domestic products, domestic and foreign products are roughly at the same technical level. Although Honeywell, YOKOGAWA and other foreign companies, such as the product process is more delicate than the national goods, precision ± 1.5 ‰ than the national goods ± 2.0 ‰ to be better, but more than 4 times the price of the user is discouraged. So far domestic manufacturers of recorders up to more than thirty, of which ZDAC, Shenyang Lanshen, Hangzhou Pangu Xiamen Koho's largest. The annual sales of these four account for about 90% of the total sales of similar products in China. In recent years, Hangzhou enjoy the technology with their own advanced products and technology to occupy a place in the domestic market.
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Temperature Recorder
RX8000B Paperless Temperature Recorder Production Temperature Recorder Applicable occasions:
[1] Pharmaceutical industry: pharmaceutical workshops, warehouses, pharmacies, and other ambient temperature observation and recording.
Food industry: food workshop, warehouse and other environmental temperature observation and recording.
Electronics industry: electronic workshop, clean environment, machine room and other environmental temperature observation records.
Agricultural research: temperature records of plant growth environment.
Other ambient temperature observation and recording requirements.
Technical specifications:
Temperature range ................................................. -40?C ~ 100?C
Humidity range ........................ ............. 0%RH to 100%RH
Temperature Accuracy .......................................................... ±0.5?C
Humidity probe ........................ ....... Honeywell HIH4000
Resolution ...................................... ........... .............. .0.1?C
Recording capacity ......................................................... .30000 groups
Recording interval ................................................. .1s ~ 24h adjustable
Battery life ................................ >=3 years (depending on usage)
Case:
Material ..................................................... ABS engineering plastic
Weight ............................................. ............... < = 700g
Dimensions ............................................ ...... .100×70×25mm
Serial Interface:
Interface ........................................................... .RS-232R
Interface Cable Length ..................................................... .1.5m
Temperature sensor ....................................................... .PT1000
Environmental parameters:
Ambient operating temperature ............................................ -20?C ~ 80?C
Features:
1, novel design, can meet a variety of recording needs
2, simple operation, reliable performance.
3, can output data in the form of charts, curves, reports, etc., to analyze the data and statistics, and can transmit the data via e-mail.
4, can be reused many times.
Portable single temperature data logger is specially designed for ultra-low power consumption, ultra-long time temperature data recording data logger series products. The product can be in accordance with the configuration of time intervals regularly collected and recorded temperature parameters, and can be collected and recorded data transmitted to the computer for processing, drawing charts; widely used in agricultural laboratories, industry, environmental protection, health epidemiology, warehousing and transportation, museums, greenhouses and other fields. The product selection of imported sensors, imported high-energy lithium battery power supply, the use of low-power technology design, without external power supply, compact size, small power consumption, high precision, can work continuously for more than three years.
Technical parameters:
Temperature range (built-in temperature sensor) -40°C~ 60°C
Temperature accuracy ±0.5 °C
Temperature resolution 0.1°C
Temperature display LCD
Temperature probe Pt1000
Data storage capacity 30000 groups
Record sampling interval 1 year
Record sampling interval 1 second ~ 24 hours adjustableDelay start 1 second ~ 24 hours adjustable
Battery lithium battery, user replaceable, one year of use
Waterproof performance IP65
Software Specialized data processing software
Temperature Recorder Classification:
According to the medium of recording: paper temperature recorder paperless temperature recorder. Recorder paperless temperature recorder; which paper temperature recorder is divided into: long graph temperature recorder, circular graph temperature recorder
By channel: single-channel temperature recorder dual-channel temperature recorder multi-channel temperature recorder
Temperature recorder development and application
Early temperature recorder are paper type, with the popularization and widespread use of computers. Paperless temperature recorder, and because of its more accurate data recording, more convenient data storage, more convenient data analysis functions, the market share has increased year by year; in the past two years the introduction of paperless recorder with usb interface is very convenient to download and save the data.
However, due to the current regulations in some occasions must use paper temperature recorder, such as: medical use of high-temperature sterilization pots, low-temperature refrigeration, for the export of food production, etc.; as well as the paper temperature recorder without computer knowledge and apply to some low knowledge level of staff to operate the occasion of the management and control of the paper temperature recorder can not be replaced by a paperless recorder.
Case source: a city food and drug supervision and management
Application products: U.S. DeltaTRAK 20200/20207 temperature and humidity recorder
Application:
Due to the food storage and transportation process time is not a short-term problem, but food preservation of temperature and humidity is to ensure that the food safety is an important indicator, directly affecting the growth of colonies. affect the growth of colonies. For example, boxed lunches are fully cooled after boiling (within 2 hours the center temperature needs to be reduced to less than 10 ℃) and then packed, and stored and transported under conditions of less than 10 ℃, and must be heated to a center temperature of not less than 75 ℃ before consumption. The use of vacuum cooling machine can be in a few minutes to a large number of boxed lunch cooled down rapidly, using cold storage about 1.5 hours can be reduced to below 10 ℃. After the meal is cooked and cooled in the afternoon, the boxed lunch processing company uses refrigerated trucks to send the boxed lunch to the school's cold storage for storage, and then provides it to students for consumption on the following day. Due to production and storage capacity constraints, the cold chain is the main way of serving meals in schools. The food is cooked and heated to keep it warm, so that the center temperature of the boxed lunch is always kept above 65°C before consumption, and it is consumed within 3 hours after it is cooked.
The use of 20200 electronic transport temperature recorder, faithfully record the temperature and humidity data at specified intervals, in the take out can easily use the computer to look at the graphic files and alarm values, to determine whether or not to exceed the permissible value, to provide scientific, continuous dynamic data, food and drug supervision departments and production enterprises based on a series of data, research on food temperature changes in the time period, analysis of factors leading to changes, and gradually improve the production, transportation and production of food. Based on a series of data, food and drug supervision departments and production enterprises study the time period of food temperature changes, analyze the factors leading to the changes, and gradually improve the production, transportation and storage environments, so as to ensure that safe food enters consumers' mouths.
Testimonials: 1. 20200 Temperature Recorder automatically monitors the whole process, with powerful data management functions.
2.20207 temperature and humidity recorder data can not be changed;
Temperature and humidity recorder has been in many areas, especially in the direct requirements of real-time recording of its entire process of temperature and humidity changes in the occasions in a wide range of applications, based on the recorder recorded changes in the value of the response to the process of storage, production, transportation and other temperature and humidity changes, and through the professional PC analytical software to carry out scientific and effective management The system can be used to analyze and summarize the changes in temperature and humidity in the process of storage, production and transportation.
1, temperature and humidity recorder in agriculture and food industry applications
Artificial climate, plastic greenhouse environment, temperature and humidity changes in the size of the value of the direct impact of crops, especially the growth of young cash crops. The use of electronic temperature and humidity recorder, it will automatically record the value of temperature and humidity, and through the PC intelligent analysis software on the recorded values in the form of graphic table output, convenient for administrators to analyze the management. And has its own alarm function, when the temperature and humidity exceeds the set high and low limits, the alarm automatically responds to remind the staff to adjust the temperature and humidity in the environment such as greenhouses or nurseries. The use of electronic temperature and humidity recorder to simplify your work, but also will save costs, and not excessive human interference, objective and true reflection of the recording process.
2, temperature and humidity recorder in the transportation industry
In the long-distance or ocean transportation process, the warehouse temperature and humidity is too high or too low will directly or indirectly affect the quality of the goods transported, especially the delivery of frozen and refrigerated food is particularly important. Carriers and shippers often have disputes over which party is responsible for changes in the quality of the goods being transported. Prevent such disputes, as long as the transportation before the warehouse in the electronic temperature and humidity recorder and open the record, after the goods arrive at the destination to read the temperature and humidity value of the warehouse during transportation, the PC software automatically generates JPG, TXT, Excel three kinds of graphic form, the results at a glance, and of course, the responsibility is clear. Electronic temperature and humidity recorder to simplify your work, and not excessive human interference, objective and true reflection of the recording process. To a certain extent, it is also a powerful evidence to resolve disputes in this regard.
3, temperature and humidity recorder in the food storage and transportation industry
In the food processing, storage and transportation process, in a timely manner to grasp the environmental conditions in which the food is located in food safety conditions is very important. In the environment, excess temperature and humidity can directly lead to food spoilage. If it is too low or too high, it will make the food taste bad and reduce the quality. The electronic temperature and humidity recorder is designed to be lightweight and comparable in size to the palm of an adult's hand. It adopts imported core components to ensure the recording data: temperature: ±0.5℃ accuracy, humidity: ±3%RH accuracy. Using electronic temperature and humidity recorder, it will automatically record the temperature and humidity values, and through the PC intelligent analysis software on the recorded values in the form of graphic table (JPG, TXT, Excel) output, convenient for administrators to analyze the management. And has its own alarm function, when the temperature and humidity exceeds the set high and low limits, the alarm automatically responds to remind the staff in time to adjust the temperature and humidity in the environment of the food storage room or production workshop. The use of electronic temperature and humidity recorder to simplify your work, but also will save costs, and not excessive human interference, objective and true reflection of the recording process.
Another typical application
1. food storage and transportation
As the food storage and transportation process time is not a short-term problem, but food preservation in the relative humidity is to ensure food safety is an important indicator of the relative humidity directly affect the growth of the colony. For example, in the equilibrium relative humidity of 95% RH to 91% RH range, easy to breed colonies of Salmonella, Polynesia, Lactobacillus, molds and yeasts. The food preservation period is also related to temperature and equilibrium relative humidity, the cake with equilibrium relative humidity value of 81% RH has a shelf life of 14 days at 27℃ and 24 days at 21℃, and if the equilibrium relative humidity is increased to 85% RH, these indicators will be reduced to 8 days at 27℃ and 12 days at 21℃. The equilibrium RH of a hygroscopic substance plays a decisive role. The equilibrium relative humidity is defined as the value of humidity obtained from the surrounding air without exchange of water between the substance and the air. This definition makes it clear that environmental climate control and packaging must be carefully specified in order to successfully store and maintain these products. At the same time, many food products are preserved in too dry a condition and their taste is somewhat spoiled. For this situation, real-time recording of temperature and humidity changes is required to ensure that the food is safe to enter the consumer's mouth.
When shipping frozen or refrigerated food over long distances or by sea, it is important to prove that the shipment was at the specified temperature and humidity at the time of receipt. The solution to the dispute is to put a logger in the cargo hold at the time of shipment and activate it. The temperature and humidity logger has a sophisticated internal clock that faithfully records temperature and humidity data at specified intervals, and can be easily accessed by a computer to view the graphic files and alarm values at the time of removal, to determine whether it is more than the permissible value, and when and for how long it has lasted can be easily accessed, and whether or not the carrier has a responsibility will be known immediately. The liability of the carrier will also be known immediately. At present, the famous foreign-funded enterprises in Shanghai, H?agen-Dazs and Hangzhou KFC Foodstuffs Co., Ltd. have found a powerful way to scientifically manage the refrigerated transportation through the use of our products.
2. Museums, cultural relics, archive management
This is another big field of temperature and humidity products, and the recorder is a very distinctive product. Archives of the paper in the temperature and humidity conditions can be stored for some time, and once the temperature and humidity conditions were damaged paper will be brittle, important information will be gone, the temperature and humidity records of the archives is necessary to prevent the occurrence of malicious accidents. The use of temperature and humidity recorder will make the work of temperature and humidity records can be simplified, but also will save the cost of keeping cultural relics, so that this work can be scientifically, not subject to too much interference from human factors. At the same time as a result of the use of NTC such a tiny probe, to ensure the minimum damage to the artwork under the premise of cultural relics, including its color, shape without damage.
3. Experiments on building materials
During the drying process of building materials, especially concrete, we should pay attention to its drying trend, which is one of the indicators for evaluating the products, and it also provides reliable data for building constructors. Application of temperature and humidity recorder can record and provide this data to the building materials research party, will provide useful help for construction. Especially in military construction, time is life, accurately grasp the concrete drying time for the first shot to the enemy, to effectively provide the living forces to the battlefield to provide a guarantee that this function can be completed by 20209/20207/20200.
4. Agriculture and animal husbandry applications
Agriculture and animal husbandry production, especially the production of some cash crops, the temperature and humidity values to be recorded in detail in its seedling period. In agricultural applications, due to the harsh environment - fertilizers, manure, etc. caused by the acidic and alkaline environment so that the humidity product drift beyond the other environments, so that the requirements of the moisture-sensitive capacitor drift is small, easy to calibrate the whole machine. Currently in Zhejiang University, Shandong Agricultural University, Northwest Agriculture and Forestry University and other prestigious institutions are used 20207 for agricultural research, and reflect very good.
5. Climate Recording: 20207 temperature and temperature recorder is of outstanding significance for agriculture and meteorological analysis.
6. Building acceptance
Mainly reflected in the acceptance of intelligent buildings. Due to the construction industry acceptance of many projects, in addition to HVAC indicators, others such as ray strength, formaldehyde concentration and other requirements of the Ministry of Construction in line with human health indicators should also be monitored, these indicators are directly related to human health. If these indicators are not known in the case, the tester rushed into these places and long-term record in the intervening period, is irresponsible for the personal health of the testers, and the application of the recorder will ensure that in obtaining reliable data at the same time on the personal safety of the testers to maximize the protection.
7. Important medical and health places
In accordance with the "hospital clean surgical department building technical specifications for comments" requirements of the operating room temperature and humidity must be controlled in a certain range: that is, the temperature in 22...25 ℃; relative humidity 45% RH...60% RH. appropriate environmental temperature and humidity for the operator and the patient are very important. The appropriate ambient temperature and humidity is very important for both the operator and the patient. When the room temperature exceeds 28℃ and the humidity is more than 70%RH, it is easy to have the reaction of stuffy heat, sweating, irritation and fatigue, which will easily affect the stable mood and agile thinking, and make the operator's technical level cannot be well exerted. At the same time, the patient will also have a fast heart rate, sweating and other symptoms and increase the difficulty of the operation; when the room temperature is lower than 20 degrees Celsius, only wearing a surgical gown operator will feel cold, easy to affect the sensitivity and accuracy of the operation movement, especially the finger's subtle movements. Naked patients due to trauma body resistance is at a low level, more prone to cold and other complications. Indoor humidity is low, and dust floating on the surface of objects is suspended in the air with certain actions, such as laying sheets, opening and closing doors and other airflow changes. The temperature difference between the inside and outside of the operating room is large, and after opening the door, the air in some areas forms a snail flow, and the wind speed increases to about four times the original wind speed of the operating room, at which time the surface of the object adhering to the object quickly floats in the air. According to the investigation of the CDC showed that the operating room airborne bacteria in the 700-800cfu/m3 when there is a risk of airborne infection. From the results can be seen, when the surgery to lay a sheet to lay a sheet after 2 hours of air pollution is the most serious, this time is the stage of surgery. Due to the effect of gravity, indoor airborne dust can be directly settled to the surgical wound, or the operator's hands or surgical instruments, so strengthen the control of air pollution during this period to prevent postoperative incision infection is critical. These requirements of the Department of Health and Epidemiology through their own monitoring to confirm the hospital operating room standards, the recorder is a good way to reduce the waste of personnel, and so that the fairness of the enforcement of the guaranteed.
8. Plumbing maintenance
Moisture in the plumbing promotes microbial growth, and this is how mold forms on the pipes. This not only affects air flow, but also breeds a lot of bacteria. These contaminated areas pose a health risk and ultimately lead to deterioration of indoor air quality (IAQ). Epoxy Film Tape Reinforced Fiber Tape Polyimide Film