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1、数字万用表操作规范Document Issue/Revision Status:文件发布/修订描述:Revision版本Release/revise Date 发布/修订日期Revise Outline 制修纪要Author 作者Remark备注Drafted by制订Checked by审核Approved by批准Department制订部门1. Purpose 目的To provide users with the proper use of digital multimeter and maintenance methods to ensure that the value of di
2、gital multimeter accurate, reliable, stable and extend its useLife, thus ensuring product quality and measurement accuracy.为使用者提供数字万用表的正确使用和保养方法，确保数字万用表的量值准确、可靠、稳定和延长其 使用寿命，从而保证产品质量及测量结果的准确度。.2. Range 范围Applicable to all of our handheld digital multimeter.适用于本公司所有在用的手持式数字万用表。3. Duties and authoritie
3、s 职责与权限1. Quality Department Metrology Center is responsible for digital multimeter calibration, repair and maintenance and then calibrated to guide the operator to properly use and maintenance;3.1. 品质部计量中心负责数字万用表的校准、维修和维修后再校准并指导操作者正确使用及保养；2. The use of the department is responsible for the proper u
4、se of digital multimeter, routine inspection, maintenance and inspection due.3.2. 各使用部门负责数字万用表的正确使用、日常检查、维护保养及到期送检。4. Content 内容4. 1. Preparation before use:4.1. 使用前准备：4. 1. 1. digital multimeter should be affixed with a valid label within the validity period, the label no damage, loss and other phe
5、nomena, if more than the validity period required by the Quality Department to re-test, calibration, labeling before use;1.1.数字万用表上应贴有有效期内的合格标签，标签无损坏、脱落等现象，假设超过有效期需由品质 部重新测试、校准、贴标后才可使用；5. 1. 2. The buttons are stable, reliable, battery power display is normal.6. 1.2.各按钮功能稳定、工作可靠，电池电量显示正常。4.2. Measur
6、ement:4.3. 测量:4. 2. 1. DC voltage measurement:4. 2.1.直流电压测量：4. 2. 1. 1. Insert the black test lead into the COM jack and the red test lead into the nV / Q / Hzn jack.4. 2.1.1.将黑表笔插入“COM”插孔，红表笔插入“V/Q/Hz”插孔；4. 2. 1. 2. Turn the range switch to the corresponding DCV range, then connect the test lead ac
7、ross the circuit under test. The voltage and polarity at the point connected with the red lead will be displayed on the screen.4. 2.1.2.将量程开关转至相应的DCV量程上，然后将测试表笔跨接在被测电路上，红表笔所接的 该点电压与极性显示在屏幕上。4. 2. 2. AC voltage measurement:4. 2. 2.交流电压测量：4. 2. 2. 1. Insert the black test lead into the COM jack and th
8、e red test lead into the V / Q / Hz” jack.4. 2. 2. 1.将黑表笔插入“COM”插孔，红表笔插入“V/Q/Hz”插孔；4. 2. 2. 2. Turn the range switch to the corresponding ACV range, then connect the test lead across the circuit under test.4. 2. 2. 2.将量程开关转至相应的ACV量程上，然后将测试表笔跨接在被测电路上。4. 2. 3. DC current measurement:4. 2. 3.直流电流测量：4.
9、2. 3. 1. Insert the black test lead into the HCOMn socket, the red test lead into the nmAn socket (up to 200mA), or the red test lead into ”20A” (up to 20A).4. 2. 3. 1.将黑表笔插入“COM”插孔，红表笔插入“mA”插孔中(最大为200mA),或红表笔插入 “20A”中(最大为20A)；4. 2. 3. 2. Turn the range switch to the corresponding DCA gear, and then
10、 string the meter into the circuit under test. The measured current value and the current polarity of the red stylus point will be displayed on the screen at the same time.4. 2. 3. 2.将量程开关转至相应DCA档位上，然后将仪表串入待测回路中，被测电流值及红色表笔 点的电流极性将同时显示在屏幕上。4. 2. 4. AC current measurement:4. 2. 4.交流电流测量：4. 2. 4. 1. In
11、sert the black test lead into the COM socket, the red test lead into the “mA socket (up to 200mA) or the red test lead into n20AH (up to 20A);4. 2. 4. 1.将黑表笔插入“COM”插孔，红表笔插入“mA”插孔中(最大为200mA),或红表笔插入 “20A”中(最大为20A)；4. 2. 4. 2. The range switch to the appropriate ACA stalls, and then the instrument into
12、 the circuit under test;4. 2. 4. 2.将量程开关转至相应ACA档位上，然后将仪表串入被测电路中；4 2. 4. 3. VC980 + is the true rms measurement.4. 2. 4. 3. VC980+为真有效值测量。4. 2. 5. Resistance measurement:4. 2. 5.电阻测量：4. 2. 5. 1. Insert the black test lead into the HC0Mn jack and the red test lead into the V / Q / HzH jack;4. 2. 5.1.将
13、黑表笔插入“COM”插孔，红表笔插入“V/Q/Hz”插孔；4. 2. 5. 2. Turn the range switch to the corresponding resistance range, the two test leads across the measured resistance.4. 2. 5. 2.将量程开关转至相应的电阻量程上，将两表笔跨接在被测电阻上。4. 2. 6. Capacitance Measurement:4. 2. 6.电容测量：4. 2. 6. 1. Insert the black test lead into the COM” jack and
14、the red test lead into the mA jack.4. 2. 6.1.将黑表笔插入“COM”插孔，红表笔插入“mA”插孔中。4. 2. 6. 2. The range switch to the appropriate capacitance range, and then test the test leads across the measured capacitance at both ends.4. 2. 6. 2.将量程开关转至相应的电容量程上，然后将测试表笔跨接在被测电容两端。4. 2. 7. Transistor hFE:4. 2. 7.三极管 hFE：4.
15、2. 7. 1. Set the range switch to hFE”；4. 2. 7.1.将量程开关置于“hFE”档;4. 2. 7. 2. decided to test the transistor NPN or PNP type, the emitter, base, collector were inserted into the corresponding jack.4. 2. 7. 2.决定所测晶体管为NPN型或PNP型、将发射极、基极、集电极分别插入相应插孔。4. 2. 8. Diode and continuity test:4. 2. 8.二极管及通断测试：4. 2.
16、8. 1. Insert the black test lead into the nCOMH jack and the red test lead into the V / Q / HzH jack (note the polarity of the red test lead is +)；2.8. 1.将黑表笔插入“COM”插孔，红表笔插入“V/Q/Hz”插孔(注意红表笔极性为 + ”)；5. 2. 8. 2. Set the range switch to the set position and connect the test leads to the diode to be tes
17、ted. The reading is an approximation of the forward voltage drop of the diode. For a silicon PN junction, a typical value of approximately 500mV-800mV is confirmed as normal. If the diode under test Open or reverse polarity, then display 1;2. 8. 2.将量程开关置层闻档，并将表笔连接到待测试二极管，读数为二极管正向压降的近似 值，对于硅PN结而言，一般约
18、为500mV-800mV确认为正常值；假设被测二极管开路或极性 反接,那么显示“1” ；6. 2. 8. 3. Connect the test leads to two points of the line to be measured. If the built-in buzzer sounds and the on-off warning indicator is on, the resistance between the two points is lower than about （70 士 20） Q.7. 2. 8. 3.将表笔连接到待测线路的两点，如果内置蜂鸣器发声且通断报警
19、指示灯亮，那么两点之间电 阻值低于约（7020） QoInspection and maintenance 点检和保养5. 1. Inspection method:5. L点检方法：5. 1. 1. digital multimeter should be affixed with a label, no damage to the label, off aod so on, and in the period of validity, if the validity period required by the Quality Department o re-tast, calibrati
20、on, labeling before use.5.LL数字万用表上应贴有标签，标签无损坏、脱落等现象，并且在有效期内，假设超过有效期需由品质部重新测试、校准、贴标后才可使用。5. 1. 2. Vbltag。check with more accurate Agilent 34401 or 34407A multimeters with 10V accuracy （0.5% of reading + 3 resolution values）.5.L2. 用精度更高的安捷伦34401或34407A万用表进行电压点检，10V档精度为土（0.5%读数+3个 分辨力值）05. 2. Maintenan
21、ce methods:5.2.保养方法：5. 2. L Periodically clean he instrument surface with a dry cloth. Do not use abrasives or solvents when cleaning it. It is forbidden to wipe the cabinet with strong acids, strong bases and abrasive substances.5.2. L定期用干布对仪表外表进行清洁，清洁时不可使用研磨剂或溶剂；禁止用强酸、强碱、磨砂性物质拭擦机壳；5. 2. 2. When us
22、ing the meter, turn off the power. If not used for a long time, remove the battery;5.2.2. 使用仪表时，要关闭电源。假设长期不使用，应取出电池；5, 2. 3. storage should avoid damp, high temperature and strong magnetic field;5.2.3. 存放应防止潮湿、高温及强磁场；6. Precautions 考前须知6. 1. Do not input voltage higher than 1000V DC or AC peak;6. 1.
23、禁止输入高于1000V直流或交流峰值的电压；6. 2. Prohibit the resistance, diode, on-off test or temperature measurement voltage;6. 2.禁止在电阻、二极管、通断测试或温度档测量电压；6. 3. Only after the test pen is removed from the instrument and powered off, can the battery be replaced;6. 3.只有在测试笔从该仪表移开及关闭电源后，才能更换电池；6. 4. If there is no concept
24、 of the measured voltage range in advance, the range switch should be turned to the highest gear and then the corresponding gear is displayed according to the display value. If the display shows H1n indicating that the range has been exceeded, the range switch Go to the appropriate gear.6. 4.如果事先对被测
25、电压范围没有概念，应将量程开关转到最高的档位，然后根据显示值转至相应档位上；如屏幕显“1”，说明已超过量程范围，须将量程开关转至相应档位上。7. Failure and Countermeasures:故障及对策：Common malfunctions常见故障Possible Causes 可能原因Method of exclusion 排除方法No display无显刀；Low battery voltage or poor contact 电池电压低或接触不良Replace the battery or adjust and clean the battery clip 更换电池或调整并清
26、净电池夹r ymbol appears-4- 符号出现Low battery voltage 电池电压低Replacement battery更换电池Current is not input 电流没输入Fuse burn out 保险丝烧坏Replace the fuse 更换保险丝Display error 显示误差大Low battery voltage 电池电压低Replacement battery 更换电池8. Structure Chart 结构图:1、数字显示屏 Digital display2、红表笔Red pen3、电源开关Switch4、功能旋钮 Function knob5、电容测量输入插孔 Capaciance measurement input jack6、测量0.2A10A之间的电流输入插孔Measure current input jack between 0.2A10A7、测量0.2A以下的电流或电容测量输入插孔