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Quick reading pH meter - protected from outside electrical influences and static charge
Quick reading pH meter - protected from outside electrical influences and static charge
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机译:快速读数pH计-免受外部电气影响和静电的影响
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摘要
The cable to the electrode is connected to the +ve input of the amplifier. It has two insulating layers. The inner is connected to the -ve input of the amplifier and via a switch or voltage divider to its output. The outer layer is connected to a potentiometer slide via a condenser to earth. the cable is connected to the electrode by a pin and insulators meet to completely protect the connection. All metal parts of the equipment are connected and earthed.
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