TESEQ DIA 1512D 喀呖声/断续干扰分析仪
完全满足EN55014-1和CISPR 16-1-1的要求同时测量150 kHz, 500 kHz, 1.4 MHz 和 30 MHzWindonws "Clickware" 软件软件控制的模块化系统波形显示
Household products, power tools and other appliances, even if they do not produce continuous interference, need to be measured for discontinuous interference in the frequency range of 150kHz to 30MHz. Because the interference generated by such products is aperiodic, the limits are relaxed from those products that emit continuous interference. Hence manufacturers must measure the amplitude, duration and repetition rate of emission from their products to determine whether the interference is discontinuous, referred to as a ‘click’, or continuous and then apply the correct limits.Such a process is complex, difficult and prone to errors. Chase Electronics Limited were part of the original CISPR working group and were involved in the development of the world’s first dedicated. Discontinuous Interference Analyzer in 1972. Continued development led to the introduction of the fully automaticDIA 1512. Building on the previous DIA 1512A and B models used by hundreds of household appliance manufacturers and test laboratories around the world, the DIA 1512D Discontinuous Interference Analyzer adds a new dimension to measurement accuracy, user information and flexibility together with comprehensive click analysis software.The DIA 1512D is a multi-channel discontinuous interference analyzer conforming to the requirements set down in CISPR 16-1-1, for measurements to CISPR 14-1 (EN 55014-1).The analyzer can have up to six channels for performing interference analysis at different frequencies. As each channel operates independently of the others, the analyzer may be used to perform simultaneous observations on different frequencies, reducing total testing time dramatically.The analyzer can be used without any other receivers, reducing the amount of measuring equipment required for discontinuous interference measurements.The large amount of information collected by the DIA 1512D during measurement is displayed via a Windows software. This displays the short clicks, long clicks and continuous interference for each channel, together with test duration and number of switching operations.The analyzer is microprocessor controlled. The automatic setting techniques eliminate the need for manual setting of duration and amplitude channel reference levels. As each receiver module has its own independent input attenuator, measurements can be made without the risk of input saturation or under-ranging, even if the signals are at very different levels in each channel.
Technical DescriptionThe DIA 1512D comprises a mainframe and up to six plug-in, fixed frequency receivers which all conform to CISPR 16-1-1. The DIA can make simultaneous measurements of click rate, short clicks, long clicks, 2 clicks in 2 seconds, switching operations and apply the upper quartile criteria to determine appliance pass and fail data. Alternatively, the user can have one receiver at a common IF frequency which is then fed from an external receiver. The mainframe has a built-in RS232 interface which is connected to an external PC running the Windows ‘Clickware’ program which controls the instrument, stores the data and provides a full test report.Waveform AnalysisThe DIA is also available with optional waveform analysis via an external digital oscilloscope, clicks on one to four channels can be displayed. Post-test click timings are also available via the Clickware software.Measurement SequenceWhilst the system is fully flexible and allows special conditions, for example refrigerators where the click rate N=half the number of switching operations, the user has available a standard method of generating an CISPR 14-1 compliant measurement sequence.this as follows;Runs for 120 mins or until 40 clicks have been registeredCalculates click rate N from No. of clicks/time in minutesRuns test again, using the click rate information.Calculates Lq from 20log30/N + LRegisters where N>30 or where 2 clicks occur in 2 seconds.Applies L or Lq as necessaryRegisters instantaneous switching (short clicks <10ms), applies limits/exempt criteriaRegisters continuous interferenceRegisters 20ms clicks and 90% less than 10msApplies Upper Quartile Method where appropriate or L=Lq+44dBGive Pass/Fail Information Generates Test Report including table of each click measured, timing information and amplitude information, limits, etc.Sensitivity: 20 dBμV (45 dBμV at input of splitter)Attenuation: 0-79 dB variable in 1 dB stepsPulse response, bandwidths etc.: As for CISPR 16 Band BMeasurement frequencies: 150 kHz, 500 kHz, 1.4 MHz and 30 MHzFrequency accuracy: ±5% Information displayed: No. of short clicks / No. of long clicks / No. of seconds of continuous interference (resolution 0.1 s). Greater than 2 clicks in 2 s indication / Duration of test (in units of 0.1 minute) / No. of switching operations, Meter IndicationTest duration: 0 - 120 minutes in minute steps or continuous Programme controls a heavy duty contactor (15 amp) Manual control of contactor is also possibleConstruction: Eurocard frame mounted in standard instrument case with integral power supplyPower requirements: 120 / 240 V, ±10%, 50 Hz AC, 100 WattSize (l x W x H, including connectors): 470 x 280 x 290 mmWeight: 10 kgOperating temperature range: 10 to 30°CComputer requirements: 200MHz Pentium or compatible processor Mouse or compatible pointing device 32MB RAM / 10MB Free Hard Disk spaceSerial port, must be free for connecting to DIA 1512DWindows compatibility: 98, 2000, XP, Vista, 7 Part number Description347-480 DIA 1512D Discontinuous Interference Analyzer (DIA), included 150 kHz, 500 kHz, 1.4 MHz and 30 MHz receivers 347-500 DIA 1530A Option for DIA 1512D, 3-phase contractor and current sensor97-347-480 DIA 1512-TC Traceable calibration (ISO17025), order only with DIA 1512D
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