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The company wants to install online ammonia nitrogen monitors to measure the quality of rainwater. Which brand is good? What model? It is mainly due to concerns about the failure rate.
Why is the failure rate considered primarily? So do you want a high failure rate or a low failure rate? You need to make that clear.
I work in maintenance, not production. Of course, faults need to be taken into consideration; it’s better if there’s no need for maintenance!
What price range are you looking for? Domestic ones cost around 40,000–50,000, while foreign brands are likely to cost over a hundred thousand
This post was last edited by sunshineda_VGMP on 2019-1-2 at 09:11. We use online instruments for network-based testing in order to free our hands; therefore, what we fear the most are things like troubleshooting and repairs. I suggest you buy a higher-quality imported brand, so that repairs and maintenance become less troublesome in the event that the ammonia nitrogen online analyzer malfunctions. If you intend to measure the ammonia nitrogen content in rainwater, you will likely require a device with high resolution and accuracy. So if the budget permits, it is recommended to consider Hashi, Shimadzu, or E+H. For specific models, you can check their official website or call the official phone number for inquiries.
Hash is still more reliable; for online instruments, it mainly depends on one’s own maintenance and preprocessing procedures