DCS and card cabinet maintenance specifications
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The original poster is in the production field and does not understand the maintenance of DCS systems; there were two instances when the remote sensors malfunctioned, and it was found that the cards used were damaged. I saw that the card cabinet was covered in dust, and I suspected that poor heat dissipation was causing problems with the cards. I asked the technician to clean the dust from the cabinet, but they said they were too busy and suggested that an operator use a hair dryer to blow away the dust instead. What are the requirements and specifications for the maintenance of DCS and card cabinets? Is it really enough to just use a hair dryer to blow away the dust? Please ask a instrumentation professional to help answer, thank you!
Each DCS manufacturer specifies the conditions required for maintenance; to be precise, the temperature and humidity should not be too high, so that the cards can function properly. Additionally, in cases where cards burn out frequently, it is necessary to check whether the voltage is stable
Thank you to the moderator for the answer! :handshake:handshake:handshake
This post was last edited by budaoweng123 on 2016-11-24 at 10:24. First of all, it is necessary to ensure that the temperature and humidity levels between the cabinets are within the specified ranges. If there is dust, lower the temperature in the cabinet room first. Wait until the major repair is done to thoroughly clean the dust. Also, do not use a hair dryer, as it emits hot air; if not controlled properly, it can damage electronic devices. Moreover, its power is too low, resulting in insufficient airflow. It’s best to buy a portable blow-dryer; they’re available on Taobao.
Thank you, Haiyou, for the answer! :handshake:handshake When cleaning the dust, is it necessary to remove the card module? Should I just use a hair dryer to blow on the card holder cabinet directly? I’ve found out that the power needs to be turned off first when cleaning dust; there’s a specific procedure for this, and this task should be carried out by the instrumentation staff, right? It’s not possible for just any person to simply go out and get some fresh air.
It is best to shut down the system and remove the cards for cleaning. Which DCS do you use? If you want to save trouble and have sufficient funds, you might consider having the DCS manufacturer carry out inspections. They not only clean the dust, but also perform maintenance on the IO cards and carry out system tests.
Routine maintenance mainly involves maintaining the temperature and humidity; most importantly, the voltage must remain stable
It is necessary to check the temperature and humidity in the cabinet room daily, ensure that the air conditioning is working properly, and clean the dust regularly, among other things
If possible, regular inspections should be carried out