论文部分内容阅读
酸度计是利用玻璃电极和甘汞电极对被测溶液中的不同酸度进行测量,产生直流电势,经直流放大器放大,进行显示读数的精密仪器。它是实验室常用的测试仪器之一,根据多年检修实践,现以pHs-2型酸度计为例,将检修方法作一介绍。1 外观检查 对pH计进行整体检查中,外观检查至关重要。避免盲目的乱动,对于电极内部线路,要检查所有元器件线路的完整性和良好性,检查缺件、烧焦、断线等明显的损坏情况。2 通电检查 pH计开关接通后,电源方面的故障常常表现为指示灯不亮或虽有指示
Acidity meter is the use of glass electrode and calomel electrode of the measured solution in different acidity measurement, to produce DC potential, amplified by the DC amplifier to display the reading precision instruments. It is one of the commonly used laboratory test equipment, according to many years of overhaul practice, is to pHs-2-type pH meter, for example, the maintenance methods for an introduction. 1 visual inspection Overall inspection of the pH meter, visual inspection is essential. To avoid blindly moving, the internal circuit of the electrode, to check the integrity of all components and the integrity of the line, check missing parts, burning, broken lines and other obvious damage. 2 Power Check pH meter switch is turned on, the power failure is often manifested in the indicator light does not shine or have instructions