Introduction:
The DDA55+ is a 4-channel Niko Analyzer manufactured by AFJ-instrument (Italy) and distributed by EUTTEST (Shenzhen). It is the latest 2020 production, based on the Windows 10 embedded operating system with PC-integrated architecture, and provides accurate CISPR14-1 Niko testing with a 10.1-inch LCD display and advanced EMC test software. CISPR14-1 clicking test with advanced EMC test software, powerful features that show when, where and under what circumstances "clicking" occurs. EUTTEST offers a quotation and after-sales training for this equipment, making it a very important contribution to the critical area of equipment compliance. 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 parameters:
<<<<提醒:左右滑动表格>>>>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. |
Product Features and Functions:
This device is designed and manufactured in accordance with CISPR 16 standards, with advanced EMC test software pre-installed, including multiple windows for real-time display of measurement results, time domain analysis function. Built-in pulse generator. Fully meets the CISPR 14-1 international standard specification for discontinuous conducted emissions (a.k.a. "clicking").
Key Features:
Customers configured with this four-channel clicker analyzer are able to sample the peak and quasi-peak levels of all four channels simultaneously after euttest training 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.
function:
Software Introduction:
This device has a windows 10 embedded operating system built inside with an internal integrated PC for complete control of the device through advanced application software. Equipped with a 10.1 inch LCD HD display, the unit can be easily operated with just an external keyboard and mouse. The powerful and easy-to-use professional test software is pre-installed, which allows you to set all parameters, perform automatic measurements and generate test reports according to CISPR14-1 requirements or any other specific needs.
EUTTEST will be shipped with a test software CLICK METER SOFTWARE, which allows the customer to set up the test parameters according to CISPR 14-1 requirements or other customized special needs.

Test Software CLICK METER SOFTWARE
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.

Fixed frequency using four parallel independent channels
A PG5502 pulse generator is built-in:
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+ from AFJ Italy has been presented above, contact us for a quote.