Price sale! QWA-5A crystal test

Price sale! QWA-5A crystal test Hongxin Electronic Instrument Co., Ltd. Contact: Mr Tsang 13929260731 Miss Tang: 1866482792824 hour service Tel: 181 2292 4681 QQ: 176 64473 Taobao: huali520199011 E-mial: tosstar118 @ 163. com line: 0769-82168709 Fax: 0769-82076259 Website :www.hongxin6666.com Address: Dongguan City in Lam Tsuen Rd 2 new long-term cash acquisition of the company Tangxia; oscilloscope network analyzer comprehensive test instrument spectrum analyzer signal generator noise figure analyzer audio analyzer Power meter digital multimeters programmable frequency meter impedance analyzer video analyzer function signal generator LCR electronic tester electronic load multimeter calibrator Oscilloscope Calibrator high-pressure machine data acquisition receive / transmitter measuring receiver cable / antenna analyzer modulation Bluetooth tester analyzer GPIB card, and undertake equipment maintenance Welcome! Come to see the goods! Price of a good talk! Your satisfaction is our pursuit. QWA-5A Introduction This machine is time testing of newly developed products, with the following functions: ◆ Time precision measuring S / D daily fast (+) or slow (-) a few seconds S / M monthly fast (+) or slow (-) a few seconds with respect to the standard frequency 32768Hz PPM parts per million error. This can be converted in three ways according to individual needs of the internal clock crystal clock TCXO10MHz, accuracy better than 0.4PPM, plus option OCXO, accuracy is better than 0.05ppm ◆ QWA-5A This test can determine the quartz crystal (32.768Hz) and bad accuracy, test type procedure is as follows: 1, will be attached to the machine on ANALOG / DIGITAL switch to DIGITAL. 2, the quartz crystal inserted in the socket on the attached machine. 3, see the signal light is lit, bright if the quartz crystal is good, when if not bright or dim light, said quartz crystal is bad. 4, such as quartz crystal in the action, press SPEED key to select the FAST (fast measurement), FAST lights. 5. Press PPM key (units selected to PPM) and read the value on the display. 6, measuring range QWA-5 that it can not exceed +/- 200PPM. 7, the general table with the quartz crystal, the frequency susceptible to temperature, so the same crystal, yesterday and today, the measurement results may differ, this does not QWA-5 are not allowed. ◆ analog timepiece test analog timepiece means second hand and move once per second watch, test procedures are as follows: 1, machine ANALOG / DIGITAL switch to ANALOG 2, in the induction area to be measured with the attached machine, (but do not touch projection on the sensor), and slightly move the pointer on the table under test until a stable signal per second back and forth again. 3. Press SPEED key and the display will show the figures (if not present, there is a rapid test, FAST will light, then press the SPEED key, that becomes a slow test, the display of the current digital ) If the displayed number is 105. And indicates that the test speed is 10 seconds, the number "5" is expressed as units of seconds, "S" (SECOND), rather than "5", continue to the next step. 4, some expressed not second is the same, but 10 seconds on average only accurate, this time should be set test speed is 10 seconds. a) by S / M, S / D or PPM, select the appropriate measurement units. b) from the display, read the measurement value, "+" indicates the table fast, "-" indicates watch is slow. * Note: The vast majority of analog timepiece can also be used in the next section mentioned digital timepiece measurement method to measure the user depending on the test easily, stability to decide what kind of test. ◆ bit digital quartz watch test the so-called digital quartz watch, that are not second hand watches (including electronic form). Test procedures are as follows: 1, will be attached to the machine on ANALOG / DIGITAL switch to DIGITAL 2, will be tested in the induction area attached table on the machine, and watch the bottom shell pressure on the sensor projections. 3, the test speed selectable FAST, can also choose 10 seconds. 4, according to S / M, S / D, PPM, choose to adapt the unit of measurement. 5, read from the display measured values, "+" indicates the table fast, "-" indicates watch is slow. Purpose: accuracy and measuring all kinds of quartz watch, motherboards, PDA, DSC, notebook computer time quartz watch ★ used to test the accuracy of the frequency of use. ★ test day clocks error, error and an error by PPM month displayed a timepiece. Specifically measured watches category.