GDS-50秒表检定仪是一***新用的时间检定仪，供各级计量部门，工厂，院校及科研单位检定各种秒表、毫秒仪，机械秒表等，性能符合检定规程的要求。技术指标：1、检定电子秒表和机械秒表：在1－99999秒内可任意置数准确度&plu***n;（2＊10－7＊输出时段）秒&plu***n;0.003秒2、检定电子毫秒仪（正负两组输出）在1－99999秒内可任意置数，***小输出100微秒准确度&plu***n;（2＊10－7＊输出时段）秒&plu***n;0.003秒3、检定电秒表（适合新规程JJG237-95）在1－99999秒内可任意置数指针式准确度：电同步＜&plu***n;0.6毫秒数字式准确度：&plu***n;（2＊10－7＊输出时段）秒&plu***n;0.006秒IntroductionThecalibratorisaprecisioninstrumentcalibratingmechanicalstopwatch,electronicstopwatch,and405/407/408/415/417typepointerelectricstopwatch.TheSF2001stopwatchcalibratoriscompliantwiththestopwatchcalibrationprocedureJJG237-2010issuedbytheNationalMetrologicalBureau.Itcouldbeusedatmetrologicaldepartmentatalllevels,factory,instituti***andallresearchinstitutestocalibrateelectricstopwatch(405,407,408,415/417),mechanicalstopwatchanddigitalquartzelectronicstopwatch.Theinstrumentisfullydigitallycontrolled,highreliability,highaccuracy,completefuncti***,convenientoperation,andstronganti-interfereability.GDS-50stopwatchcalibratoranditsaccessories:1)GDS-50stopwatchcalibrator1piece2)Three-corepowercord1piece3)Dualbananaplugtestlead2pieces4)BNC-bananatestlead1piece5)SoftcopyofUser’sGuide1pieceMainParameter1.1CrystalOscillatorNominalfrequency:5MHzDailyagingrate:≤5×10-9/daySecondstability:≤5×10-10/sAccuracy:≤1×10-7Warming-uptime:over2hours1.2Calibratemechanicalstopwatchandelectronicstopwatch(T0isinputtedcalibrationperiodoftime)Inputrange:T0:1s-99999sAccuracy:betterthan&plu***n;(1×10-7×T0+3ms)1.3CalibrateelectricstopwatchPointer:Inputrange:Continuous:T0:0.1s-99999sTriggerstate:T0:1s-99999sPausestate:T0:0.1s-99999sAccuracy:betterthan&plu***n;(commercialpowerfrequencyaccuracy×T0+0.6ms)1.4CalibratemillisecondcounteranddigitalelectricstopwatchInputrange:T0:1×102µs-1×109µsAccuracy:betterthan&plu***n;(1×10-7×T0+3µs)TheSF2001calibratorisfullycompliantwiththemechanicalstopwatchanddigitalquartzstopwatchcalibrationprocedure,electricstopwatchcalibrationprocedure,andelectronicmillisecondcountercalibrationprocedure,issuedbytheNationalMetrologicalBureau.2.1Workingconditi***Voltage:220(1&plu***n;10%)V;Frequency:50(1&plu***n;5%)Hz;Powerc***umption:<60VA;Temperature:0~40℃;Humidity:<80%2.2MechanicalcharacteristicsDimension:329mm×283mm×155mmWeight:3.7kg2.3Operationcharacteristics:Inputwithkeys,menudisplay2.4Displaymode:LCDdisplay,Englishmenu2.5Technique:With***Ttechniqueandlarge-scaleIC,thecalibratorisofhighreliability,***allvolumeandlongservicelife.)