Laboratory equipment, as a daily necessities of the laboratory, maintenance and repair is particularly important, but because laboratory equipment is different from ordinary instrument furniture, the following principles should be followed in the maintenance process:
First, there are usually two reference conditions for reference condition rules: 1. Standard reference conditions; 2. Test reference conditions. Standard reference conditions, also known as standard test conditions, are conditions that are easily verifiable from one system to another, from one laboratory to another. The data measured with this condition helps identify problems between actual tests and systems. If the system pressure rises under certain test conditions, the pressure is normal under standard conditions. This indicates that system anomalies are caused by changes in the laboratory.
Second, change the rules. When the system fails, you can tentatively change some states and change one parameter at a time. Then again, the comparison rule has already identified the fault before the hands-on maintenance, or has determined the solution to solve the fault. In other words, the solution has been found before the hands-on. For example, during the injection process, the peak value of the internal standard is found to be low, and the repeating injection can be repeated to see how reproducible, if it is accidentally low, whether the bubble is in the quantitative tube. This rule can be used to examine the situation after a system change. After changing the flow backwards, you can enter the standard twice before the formal injection to check the stability of the retention time. This rule can avoid unnecessary changes and determine corrective measures as soon as possible.
Then, instead of replacing the suspicious parts with good parts, it is a good way to find faults. If you suspect that the detector is causing noise, switch to a good performance detector. If the fault is eliminated, there is a problem with the replaced detector. The scale of this rule application is large and small.
After zui, in exchange for the rule, this rule is used together with the replacement rule. After the good part has replaced the suspicious part, the situation has not been improved, and the original part should be replaced. The maintenance cost of this is small, and it prevents the used parts from being accumulated. This rule only applies to a single fault. The principle of exchange back does not apply to the following situations:
1. The new part is damaged when it is removed (such as pump sealing washer);
2, the price of parts is low:
3. Risk of damage if the original parts are reinstalled;
4. Parts that are replaced regularly.
First, there are usually two reference conditions for reference condition rules: 1. Standard reference conditions; 2. Test reference conditions. Standard reference conditions, also known as standard test conditions, are conditions that are easily verifiable from one system to another, from one laboratory to another. The data measured with this condition helps identify problems between actual tests and systems. If the system pressure rises under certain test conditions, the pressure is normal under standard conditions. This indicates that system anomalies are caused by changes in the laboratory.
Second, change the rules. When the system fails, you can tentatively change some states and change one parameter at a time. Then again, the comparison rule has already identified the fault before the hands-on maintenance, or has determined the solution to solve the fault. In other words, the solution has been found before the hands-on. For example, during the injection process, the peak value of the internal standard is found to be low, and the repeating injection can be repeated to see how reproducible, if it is accidentally low, whether the bubble is in the quantitative tube. This rule can be used to examine the situation after a system change. After changing the flow backwards, you can enter the standard twice before the formal injection to check the stability of the retention time. This rule can avoid unnecessary changes and determine corrective measures as soon as possible.
Then, instead of replacing the suspicious parts with good parts, it is a good way to find faults. If you suspect that the detector is causing noise, switch to a good performance detector. If the fault is eliminated, there is a problem with the replaced detector. The scale of this rule application is large and small.
After zui, in exchange for the rule, this rule is used together with the replacement rule. After the good part has replaced the suspicious part, the situation has not been improved, and the original part should be replaced. The maintenance cost of this is small, and it prevents the used parts from being accumulated. This rule only applies to a single fault. The principle of exchange back does not apply to the following situations:
1. The new part is damaged when it is removed (such as pump sealing washer);
2, the price of parts is low:
3. Risk of damage if the original parts are reinstalled;
4. Parts that are replaced regularly.
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