%20combines%20the%20best%20features%20of%20chart%20recorders%20and%20data%20loggers%20and%20is%20becoming%20the%20preferred%20choice%20in%20the%20majority%20of%20new%20and%20retrofit%20temperature%20recording%20applications.%20An%20LCD-display%20replaces%20the%20old%20paper%20chart%20and%20offers%20the%20local%20display%20of%20traditional%20paper%20chart%20recorders,%20while%20its%20RAM%20memory%20offers%20the%20electronic%20storage...){kind=link}
A Revolution In Chart Recorders - Advantages Of The Thermaviewer
The ThermaViewer (A Paperless Chart Recorder) combines the best features of chart
recorders and data loggers and is becoming the preferred choice in the majority of new and retrofit temperature recording applications. An LCD-display replaces the old paper chart and offers the local display of traditional paper chart recorders, while its RAM memory offers the electronic storage capabilities of data loggers. All in all, this precision instrument offers greater flexibility, lower cost and longer life then the chart recorders. It puts simple-to-understand trend-indications right on the LCD in a graphic format that can easily be seen and interpreted by even the most unskilled of workers. And if it is installed in a heavily trafficked area every employee becomes part of the quality control process as they glance at it while walking by. A computer interface allows the data to be downloaded periodically or automatically and saved as an encrypted data file for archiving and/or printing.Lower Cost.
Recent innovations in the ThermaViewer have already brought the cost down to that of chart recorders, especially where multiple probes are used to monitor multiple appliances or rooms. One ThermaViewer can do the work of two chart recorders in most cases. This trend will continue, as volumes increase. Since the ThermaViewer has no moving parts it will not jam or wear out so there is no repair or replacement costs. The user saves in three ways.
1.The initial purchase price is less than mechanical chart recorders.
2.There are no consumable supplies like paper and pens to purchase.
3.It has no mechanical parts to wear out - making it basically maintenance free.
Stores a lot of data
The ThermaViewer stores over 80,000 data points for each of its two probes. If it is set to store temperature every 10 minutes it will store over 1.5 years of temperature history. If it is storing a reading every hour it will store over nine years of data. The memory is circular meaning that once the memory is full, new readings write over the oldest data. If the ThermaViewer is collecting temperature and relative humidity it store 80,000 points for each of the four channels, (2 temp & 2 RH).
Multiple data displays
Because the logged data is displayed on the LCD, the chart can be electronically manipulated to highlight information that is important to the user. For example, in addition to scrolling back and forth along the data, it has a zoom feature that can redraw the chart to display weeks, months and even years of data on the screen at one time. A trace mode can be used to highlight specific temperatures showing not only the exact temperature but also the hour, minute and second that the reading was taken right on the display itself.
Wider temperature range
Any temperature can be collected and displayed on the ThermaViewer LCD display. The only limiting factor is the type of probe used. If a K-type thermocouple is used, you could monitor 180F liquid nitrogen for a week and then a 1500F oven the next day. And because of the flexibility of the display it can be changed to highlight only the temperatures you are interested in. For the liquid nitrogen you might set the display parameters to show all the temperatures between 200F and 160F. For the 1500F oven the range can be reset to show temperatures between 1300F and 1650F. The parameters can even be changed without losing the previously collected data.
Summary of Benefits
The ThermaViewer has the following advantages:
1. Its remote probes can be positioned far away from the display.
2. It is easy to setup and begins collecting data immediately.
3. No programming or maintenance is required.
4. The simple chart display can be read by a 12 year old.
5. Multiple data displays: Zoom in/out; Scroll back & forth; trace mode.
6. It automatically turns the display off to save power if power is interrupted.
7. It continues to collect data during a power outage.
8. It triggers a local alarm or phone dialer in emergencies.
9. It requires no maintenance or supplies (paper, pens, PC, chart changing).
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