晶体管特性图示 QT2 操作规程Microsoft Word 文档.docVIP

晶体管特性图示仪态 QT2 操作规程 一、测试前的开关与调节 二、各类晶体管的操作方法 三、注意事项 1、不要在放有易燃易爆品的地方使用仪器； 2、仪器特别是连接测试件的测试导线应远离强电磁场，以免对测量产生干拢； 3、打开电源前确保接好了保护地线以防电击，且应避免交流电的零线用作保护地线； 4、不要不接保护地线或不接保护地线，否则将造成潜在的电击伤害； 5、无保护地线和保险丝时请勿使用仪器； 6、仪器测试完毕、排除故障需打开仪器或更换保险丝前需切断电源和负载； 7、未经许可严禁取下仪器外壳和拆卸仪器的任何部件； 8、打开电源预热10分钟后仪器才可进入正常工作状态； 9、对被测管的的主要直流参数要熟悉了解，特别要了解该被测管的集电极最大允许耗散功率Pcm,集电极对其它极的最大反向击穿电压，如BVCEO、BVCBO、BVCRR，集电极最大允许电流Ｉcm等主要指标； 10、在测试前首先将极性与被测管所需要的极性相同，即选择PNP或NPN的开关置于规定位置； 11、将集电极电压输出电压不应超出被测管允许的集电极电压，一般情况下将峰值电压旋至零，防止被测管损坏； 12、对被测管进行必要的估算，以选择合适的注入阶梯电流或电压，此估算的原则以不超过被测管的集电极最大允许耗损功率； 13、在进行Ｉcm的测试时，一般采用单次阶梯为宜，以免被测管被电流击穿； 14、在进行Io或Ｉcm测试中，应根据集电极电压的实际情况，不应超过本仪器规定的最大电流，具体数据如下： 电压档级 10V 50V 100V 500V 500KV 允许最大电流 50A 10A 5A 0.5A 5mA 15、本仪器的维修需有一定经验的专门人员进行维修； 16、注意仪器保养，操作人员离开岗位必须断开仪器电源 量一光电科技（惠州）有限公司 版 本 A/0 编 号 晶体管特性图示仪态 QT2 操作规程 页 码 1/9 生效日期 I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business unit name: account number: loan funds from these personal settlement account into the account of a payment. Loans in accordance with the following payment methods to pay. One, lender trustee payment. Delegate qilu Bank loan funds of the borrower to meet the stipulation of the contract the following borrowers, counterparties, commitment funds, regulatory compliance, legal, and willing to take the pay disputes, loss and other consequences of the delegate. Payee account number Bank name amount purpose II, borrowers own payment methods. Qilu Bank according to the borrowers withdrawal request to loan funds disbursed directly to the borrowers account, and independently by the borrower payments to borrowers who meet the stipulation of the contract transactions. I guarantee to your bank contracts and other prove of material submitted by real and effective. When in accordance with one payment, I agr