Introduction：
DDA55+ is a four-channel click sound analyzer produced by AFJ-instrument of Italy and distributed by EUTTEST of Shenzhen.
The latest 2020 production DDA55+ is a PC-integrated architecture based on the Windows 10 embedded operating system, which enables accurate CISPR14-1 click testing with a 10.1-inch LCD display and advanced EMC test software.The DDA55+ click analyzer's powerful features show when, where, and how "clicks" are being generated. The DDA55+ Click Analyzer has the power to show when, where and under what conditions "clicks" are generated. This makes it a very important contribution in the critical area of equipment compliance.EUTTEST offers a quotation and after sales training service for the DDA55+. Older versions DDA55(without monitor) has been discontinued.
The source of the clicking sound:
All automated programmable control equipment, electronic switches, temperature control heating devices, and common household appliances and industrial equipment.
Industry lighting equipment can generate discontinuous interference along power cables. The effects of this interference vary with repetition frequency and
varies by amplitude: the higher the amplitude of the disturbance, the lower the frequency at which it occurs.
CISPR 14-1 regulates harmful electromagnetic radiation from household appliances and power tools.
The limit of the "intermittent nuisance", which is commonly known as "clicking", is included in the power cable. It is
Defined as interference that exceeds the continuous emission limit and has a duration of less than 200 ms, and an interval between two interferences.
Interference at intervals greater than 200ms.
Technical specifications of the DDA55+:
| Model Niko Sound Analyzer | DDA55+ |
| manufacturer | AFJ-instrument |
| agent | EUTTEST |
| Meet the standard | GB 4343.1-2018 CISPR 14-1 2011 CISPR 16-1-1 |
| Number of Channels N. of Digital Direct Sampling Receivers | 4 (ADC @ 122.88 MSamp/s) |
| Digital Receivers NCO FrequenciesDigital Receivers NCO Frequencies | 150kHz, 500kHz, 1.4MHz, 30MHz |
| Frequency Stability Frequency Error | <10 x 10^(-6) |
| Pulse Response Pulse Response | Recognition of peaks and quasi-peaks according to CISPR 16-1-1 |
| Pulse Generator | Built-in CISPR 16-1-1 validation |
| RF Input RF Input | N,50 Ω Impedance |
| VSWR Input Voltage Standing Wave Ratio | <1,5:1 (0dB Attenuation) <1,2:1 (≥10dB Attenuation) |
| Max Input | 127 dBμV |
| Built-in Attenuator Built-in Attenuator | Manual 0 ÷ 30 dB (10 dB/Step) |
| Sensitivity | 25 dBμV Typ. (Quasi-Peak) |
| Measurement Accuracy with S/N > 20dB Measurement Accuracy | ± 0.8dB (150kHz; 500kHz; 1.4MHz; 30MHz) |
| Dynamic Range | 75 dB Typ. |
| RF Shielding | 3 V/m |
| Test Time Limit | 120 minutes |
| Image Freq. Rejection Image isolation level | 90 dB Typ. |
| Displayed Events for Each Channel Displayed Information for Each Channel | Peak and Quasi-Peak levels Peak and Quasi-Peak levels N. of clicks: Short, Long, Fast long Elapsed test time N. of Switching Operations Continuous Disturbance Time Snapshot of the last event detected Time Domain |
| Monitor | 10.1" LCD Display |
| Interface interface | Ethernet Ethernet port 10/100 MB Remotable LAN Remote Control Local Area Network (LXI Level 0 Protocol) |
| Power Supply | 110/230Vac ± 10%, 50/60Hz |
| Consumption Power | 50VA |
| Operating Temperature | 0 to 45°C |
| Storage Temperature | -20 to 70°C |
| Size(W x H x D) Dimensions | 450 x 200 x 400mm |
| Weight | 15Kg |
| Optional Accessories LISN Artificial Power Network | LS16C/10 : 16A Single Phase Single Phase LT32C/10 : 32A Three Phase Three Phase |
| Optional accessories SWITCHING BOX Switching box | SW04/32 32A three-phase SW04/100 100A three-phase |
| Optional accessories | VCCI Option Fully compliant with VCCI Japanese standards by 500kHz/550kHz adjustable channel frequency. DENAN Option The equipment is fully compliant with the DENAN LAW Part.10 Japanese standard by means of an extra-long click evaluation and DENAN rules. |
DDA55+ Product Features and Functions:
The DDA55+ is a CISPR 16-compliant, sophisticated design with pre-installed advanced EMC test software, including multiple windows for real-time display of measurement results and time domain analysis. Built-in pulse generator. Fully meets the CISPR 14-1 International Standard specification for discontinuous conducted emissions (a.k.a. "clicking").
Key features of the DDA55+:
Configuring the DDA55+ Customers trained on euttest are able to sample the peak and quasi-peak levels of all four channels simultaneously to identify and count all clicks (short, long, fast long), continuous nuisances and switching operations. All information captured by the unit during the test is displayed in real time by channel and all data and graphs (e.g. waveforms) are stored on the PC hard disk.
Functions of the DDA55+:
Introduction to the software of the DDA55+:
The DDA55+ Click Analyzer runs Windows 10 embedded operating system and has an integrated PC for full control of the unit through advanced application software. Equipped with a 10.1-inch LCD high-definition display, it can be easily operated with an external keyboard and mouse. The powerful and easy-to-use professional test software is pre-installed, allowing you to set all parameters, perform automatic measurements and generate test reports according to CISPR14-1 requirements or any other specific needs.
The DDA55+ supports simultaneous testing of four independent channels:
The DDA55+ utilizes four parallel independent channels of fixed frequency (150kHz, 500kHz, 1.4MHz, 30MHz) RF receiver, each test channel can perform peak and quasi-peak detection capability, fully compliant with the requirements of CISPR 16-1-1 standard, quasi-peak detector design according to the CISPR 14-1 standard, and integrated oscilloscope (time-domain) The quasi-peak detector is designed in accordance with CISPR 14-1 and incorporates an oscilloscope (time domain measurement) function.
The DDA55+ has a built-in PG5502 pulse generator:
For functional self-assessment, the DDA55+ has a built-in PG5502 pulse generator. It generates a range of single and multi-pulse nuisances, fully encompassing CISPR 16-1-1 Table 14 and CISPR 16-1-1 Annex F Table F.1, and can be used with any of the four standard frequencies (150kHz, 500kHz, 1.4MHz, 30MHz) and two user-defined frequencies.
DDA55+ test software:
The DDA55+ is shipped with a test software CLICK METER SOFTWARE, which allows the customer to set the test parameters according to CISPR 14-1 requirements or other customized special needs.
DDA55+ from AFJ Italy has been presented above, contact us for a quote.