Selasa, 15 Agustus 2017

Tips When You Buy Data Logging Sensors

By Harold Cook


Data loggers are electronic devices that, over time, records information with an instrument or sensor which are either built in or external ones. They are usually portable, battery powered and small which are equipped with internal memory used for info storage and microprocessor. Some use personal computers with a software that interface and activates them or have a local interface.

They have different purposes for general or specific measurement applications and when activated, are left for a certain time. Data logging sensors can be programmed but there are those that are static and their parameters are allowed limited changes only. Here are a few tips when you buy one for the need you particularly have.

Determine what measurement accuracy is needed for the info you would be monitoring such as room or storage temperature. They have various specifications and understanding requirements will help to avoid paying more for unnecessary accuracy. Resolution is another essential factor though having a higher one does not guarantee that its accuracy is better.

Information can be accessed in these devices in various ways such as using a USB interface connected to computers directly. Though bringing back the device to office or computer to the site is an activity that is inconvenient and impractical. You can instead use data shuttles that can retrieve the collected info without moving or interrupting the logger.

They have many different software packages for graphing and analysis but look for intuitive ones that have minimal learning curve. Their tasks such as offloading data, launching the logger and configuring parameters must be done quickly and easily. They must be capable in plotting, cropping, appending and merging information which can be exported easily.

When you buy them, make sure their enclosure can withstand environment conditions of the area you are placing them. For office hallways monitoring, hard plastic will be enough while one with moisture protection is needed in areas that are non condensing. Inquire if they have available protective cases suitable for situations where an increase of durability and protection is required.

These devices consume very low energy but their battery life varies greatly because their sample rates might not be similar with the environmental conditions. Make sure to select one which has a battery that will last for one year at least. Inquire if their batteries could be easily replaced by users and if specialized batteries are used or standard household ones only.

Loggers generally are easy to use with technical assistance being rare required even during the first phases of using them. But because this product is highly technological, you may want to ask some questions regarding them so check if your supplier offers support services. These preferably should include resources based on telephone and internet and these services could be enjoyed longer if they have financial stability as well.

Search for a supplier that offers reliable performance on different monitoring environments like outdoors, indoors or underwater. This will be your assurance of their expertise and knowledgeable in understanding, assessing, and meeting your needs currently and in the future. In case environmental conditions will not meet the set tolerance range, ask them regarding alarm capabilities.




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