Brief introduction: GDS-50 stopwatch verification instrument is a precision instrument to verify mechanical stopwatch, electronic stopwatch, 405, 407, 408 type electric pointer stopwatch, digital electric stopwatch, digital millisecond meter. GDS-50 stopwatch verification instrument is fully suitable for the latest issued by the state administration of metrology for the verification of electrical stopwatches, mechanical stopwatches and digital quartz electronic stopwatch verification procedures. It can be used for the verification of various electric stopwatches (405, 407, 408), mechanical stopwatches, digital quartz electronic stopwatches, digital electric stopwatches and millisecond watches by metrology departments at all levels, factories, colleges and research institutes. Functional features: 1, according to the national issued mechanical stopwatch and digital quartz stopwatch verification procedures design and manufacture 2. It is a multi-functional and comprehensive automatic test device for time verification 3. High stability quartz crystal oscillator is adopted as the time reference 4. Adopt advanced FPGA technology and integrated control of single chip microcomputer, response speed block and high output precision 5. LCD display interface is clear and easy to operate 6. For the verification of mechanical stopwatches, electronic stopwatches and other timing instruments by metrological departments at all levels, factories, colleges and research institutions Technical parameters: Input range T0:1s ~ 99999s Accuracy: better than + / - (2 x 10-7 x T0+3ms) Crystal vibration index: Nominal frequency: 10MHz The aging rate of high steady crystal oscillator is less than or equal to 5 times 10-9/ day Second stability: less than or equal to 1 times 10 minus 10/s Accuracy: less than or equal to 1 x 10-7 Preheating time: > 24 hours Standard 10MHz output Dimensions: 255 x 300 x 400(mm); Weight: 6 kg
Brief introduction: GDS-50 stopwatch verification instrument is a precision instrument to verify mechanical stopwatch, electronic stopwatch, 405, 407, 408 type electric pointer stopwatch, digital electric stopwatch, digital millisecond meter. GDS-50 stopwatch verification instrument is fully suitable for the latest issued by the state administration of metrology for the verification of electrical stopwatches, mechanical stopwatches and digital quartz electronic stopwatch verification procedures. It can be used for the verification of various electric stopwatches (405, 407, 408), mechanical stopwatches, digital quartz electronic stopwatches, digital electric stopwatches and millisecond watches by metrology departments at all levels, factories, colleges and research institutes.
