Instrument: Agilent1100 binary pump DAD detector failure: Binary pump self-test bright red, the workstation prompts error: power failure Possible causes: A pump and B pump motor problems Binary pump motherboard problems Maintenance programs: the company also There was a single pump liquid phase, good condition, and the motor of the Agilent liquid pump was generic. The engineer was consulted about this, so I decided to troubleshoot the cause of this single pump.
Maintenance process: First, the binary pump B pump motor into a single pump motor position, the purpose of doing so in order to check the B pump motor is faulty, start the single pump module power, self-test through, open the workstation, start the pump Of the switch, there is no error report, so I first rule out the problem of B pump; and then put the A pump motor to a single pump instrument, after installation, open the module power, status and so on display red, workstation error indication adjustment, This problem is the motor's internal problems, Agilent engineers say they can not repair even if they come home, to return to the factory to repair, but to buy a motor need 38,000 yuan, a lot of money then. But we can now confirm that there is something wrong with pump A, so let's try two good motors (one pump and one pump B) on the original binary pump Look at how it, so after some disassembly, installation ... ... again the original B pump motor installed in the position of the B pump, a single pump motor mounted to the position of the A pump motor to ensure that the two motor no problem Dual pump is working, after installation, turn on the module power, self-test no problem, but when the A pump is turned on again error: the power failure, is it really the motherboard problem? Binary pump motherboard also near 10,000 yuan, this we can not replace the alternative test, the specific single pump and binary pump whether the common motherboard is not known, and later remind a colleague, or change the active valve to see, because the active valve is energized Anyway, the instrument has been disassembled seven and a half broken, and perhaps just fine, and sure enough the single pump on the active valve (in good condition) to binary pump A pump, the workstation status becomes green, Maybe me Process of the relatively concise, but in practice it is really time-consuming maintenance of the week-long instrument finally have the results, in the middle over the weekend, oh.
Results: Binary pump utilization is high, so for the time being a single pump motor and active valve on the binary pump on the use of, as for the bad motor and active valve how to deal with, to be determined ......
Note: The pump motor in the pump head behind the position, a piece can be demolished, the best taken before the demolition, two to three people to complete, to prevent the demolition after the installation does not go back; demolition process first remove the pump head , And then followed by disassemble the shell, metal shell, foam, the other motor has some fixed with the circlip, be careful not to knock off, be sure to cover the foam when installed back, it is best covered with metal shell, because the foam on the induction Parts.
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