Product overview: SYN5302 diurnal difference calibrator is a multifunctional calibrator designed, developed and produced according to the verification regulations of jjg488-2008 calibrator. That poor verification instrument measurement, is to use the method of sensor, the oscillation signal transformation of clocks for the corresponding electrical signal, counting method was used to measure the cycle of the electrical signals relative to the nominal value deviation, calculate the difference, not only can measure the built-in 32768 hz crystals of electronic products also can directly measure the output 1 hz clock error of smart meters, at the same time also can test the pulse signal frequency accuracy. That poor verification instrument verification electronic stopwatch, smart meters equipment, computer motherboards, electronic scale, clock, electronic cash registers, quartz clocks, thermostat, timer, timer, poor timing of products such as function, widely applies in metrological verification department, product quality inspection institutions, the production of the clock and intelligent watt-hour meter production enterprises. Product functions: 1) it has two functions of contact measurement and non-contact measurement; 2) used for detecting instantaneous diurnal difference of electronic stopwatch and quartz electronic clock; 3) supporting high-sensitivity probe suitable for various test scenarios; 4) portable and mobile, it can be used in both the field and the detection mechanism; 5) the measurement result data is automatically exported to the computer; 6) built-in high-precision constant temperature crystal oscillator OCXO; 7) signal strength indicator and alarm setting; 8) with PPM screening function of crystal vibration; 9) watt-hour meter clock measurement function; 10) pulse frequency measurement function; 11) function of voice broadcasting PPM measurement results; Product features: 1) high precision, high cost performance; 2) complete functions and reliable performance; 3) high precision, high reliability, convenience and intuition. Typical applications: 1) test instantaneous diurnal difference of electronic stopwatch, verification of diurnal difference of clock products, verification of diurnal difference of second pulse of electric energy meter, etc.; 2) product quality inspection institutions, watch manufacturers and intelligent electricity meter manufacturers; Technical indicators: Electric stopwatch measurement Frequency: 32.768 KHZ Measurement method: non-contact measurement Daily difference measurement range: + / - (0.0000-49.9999) s/d Measurement content: accuracy, PPM(one millionth accuracy), s/d (daily difference), s/m (monthly difference), s/y (annual difference) Measurement period: 1s, 2s, 5s, 10s, 20s, 60s, 100s Maximum error of daily difference measurement: + / - 0.003 seconds/day Watt-hour meter measurement Frequency: 1 hz Tested interface: photocoupler output end of watt-hour meter Measurement content: accuracy, PPM(one millionth accuracy), s/d (daily difference), s/m (monthly difference), s/y (annual difference) Measurement period: 1s, 2s, 5s, 10s, 20s, 60s, 100s Measurement accuracy: no more than 2E-8/1s, equal precision measurement, and crystal vibration accuracy Frequency measurement Measurement accuracy: no more than 2E-8/1s, equal precision measurement, and crystal vibration accuracy Measurement frequency: 0.1hz ~ 10MHz (pulse) Communication signals Serial port output: DB9 RS232C output test content USB storage (reservation) : plug in u disk to automatically store test data Internal constant temperature crystal vibration index 10 MHZ frequency: Boot characteristic V: less than or equal to 1 * 10-8 Frequency accuracy: less than or equal to 1 x 10-7 Daily aging rate: less than or equal to 5 times 10-9/ day Second stability: less than or equal to 5 times 10-11/s Environmental features Working temperature: 0 ℃ to + 50 ℃ Relative humidity: 90% or less (40 ℃) Storage temperature: - 30 ℃ ~ + 70 ℃ Power supply: ac 220V, power less than 10W Case size: portable portable machine 410mm*340mm*130mm Weight: approximately less than 6Kg
