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<p><strong style="color:#548dd4; text-indent:0em"><span style="font-size:20px">Technical parameters of detection unit</span></strong></p> <p>&nbsp;</p> <table border="1" cellspacing="0"> <tbody> <tr class="firstRow"> <td colspan="2" style="vertical-align:top" width="100%"> <p style="text-align:center"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Input</span></span></span></span></span></span></p> </td> </tr> <tr> <td style="vertical-align:top" width="193"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">PV battery string input</span></span></span></span></span></span></p> </td> <td style="vertical-align:top" width="502"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:宋體">&le; </span><span style="font-family:Calibri">16 channels, 0-20 Adc, accuracy 0.5%</span></span></span></span></span></span></p> </td> </tr> <tr> <td style="vertical-align:top" width="193"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Analog input</span></span></span></span></span></span></p> </td> <td style="vertical-align:top" width="502"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">3-way, 4-20mA/0-5V, accuracy 0.5%</span></span></span></span></span></span></p> </td> </tr> <tr> <td style="vertical-align:top" width="193"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">State input</span></span></span></span></span></span></p> </td> <td style="vertical-align:top" width="502"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">2-way DI quantity, passive, 2500V photoelectric isolation</span></span></span></span></span></span></p> </td> </tr> <tr> <td colspan="2" style="vertical-align:top" width="696"> <p style="text-align:center"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Interface</span></span></span></span></span></span></p> </td> </tr> <tr> <td style="vertical-align:top" width="193"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Communication interface</span></span></span></span></span></span></p> </td> <td style="vertical-align:top" width="502"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">1 * RS4852500V photoelectric isolation</span></span></span></span></span></span></p> </td> </tr> <tr> <td colspan="2" style="vertical-align:top" width="696"> <p style="text-align:center"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Optional</span></span></span></span></span></span></p> </td> </tr> <tr> <td style="vertical-align:top" width="193"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Communication port lightning protection</span></span></span></span></span></span></p> </td> <td style="vertical-align:top" width="502"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">4KV (10/700us) (GB9043-1999), lightning protection</span></span></span></span></span></span></p> </td> </tr> <tr> <td style="vertical-align:top" width="193"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Digital tube display</span></span></span></span></span></span></p> </td> <td style="vertical-align:top" width="502"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Accurate to 0.01, error </span><span style="font-family:宋體">&le; </span><span style="font-family:Calibri">5 </span><span style="font-family:宋體">&permil;</span></span></span></span></span></span></p> </td> </tr> <tr> <td colspan="2" style="vertical-align:top" width="696"> <p style="text-align:center"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Work environment</span></span></span></span></span></span></p> </td> </tr> <tr> <td rowspan="2" style="vertical-align:top" width="193"> <p>&nbsp;</p> <p><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Working power supply</span></span></span></span></span></span></p> </td> <td style="vertical-align:top" width="502"> <p>85 ～ 264Vac</p> </td> </tr> <tr> <td style="vertical-align:top" width="303"> <p>18 ～ 36Vdc</p> </td> </tr> <tr> <td style="vertical-align:top" width="193"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Power dissipation</span></span></span></span></span></span></p> </td> <td style="vertical-align:top" width="502"> <p>&le; 8W</p> </td> </tr> <tr> <td style="vertical-align:top" width="193"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Working temperature</span></span></span></span></span></span></p> </td> <td style="vertical-align:top" width="502"> <p>-35&deg; C ～ +75&deg; C (-31&deg; F ～ +158&deg; F)</p> </td> </tr> <tr> <td style="vertical-align:top" width="193"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Storage temperature</span></span></span></span></span></span></p> </td> <td style="vertical-align:top" width="502"> <p>-40&deg; C ～ +85&deg; C (-40&deg; F ～ +185&deg; F)</p> </td> </tr> <tr> <td style="vertical-align:top" width="193"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Relative humidity</span></span></span></span></span></span></p> </td> <td style="vertical-align:top" width="502"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">5-95% non condensing</span></span></span></span></span></span></p> </td> </tr> <tr> <td colspan="2" style="vertical-align:top" width="696"> <p style="text-align:center"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Electromagnetic compatibility (EMC)</span></span></span></span></span></span></p> </td> </tr> <tr> <td style="vertical-align:top" width="193"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Electrostatic discharge </span></span></span></span></span></span></p> </td> <td style="vertical-align:top" width="502"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">GB/T 17626-4-2 Level 3</span></span></span></span></span></span></p> </td> </tr> <tr> <td style="vertical-align:top" width="193"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Fast transient </span></span></span></span></span></span></p> </td> <td style="vertical-align:top" width="502"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">GB/T 17626-4-4 Level 3 (requires communication port lightning arrester)</span></span></span></span></span></span></p> </td> </tr> <tr> <td style="vertical-align:top" width="193"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Impulse current</span></span></span></span></span></span></p> </td> <td style="vertical-align:top" width="502"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">GB/T 17626-4-5 Level 3 (requires communication port lightning arrester)</span></span></span></span></span></span></p> </td> </tr> <tr> <td style="vertical-align:top" width="193"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Power frequency magnetic field</span></span></span></span></span></span></p> </td> <td style="vertical-align:top" width="502"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">GB/T 17626-4-8 Grade 4</span></span></span></span></span></span></p> </td> </tr> </tbody> </table> <p><br /> <span style="color:#548dd4"><strong><span style="color:#548dd4; font-size:20px">Equipment technical parameters</span></strong></span></p> <p>&nbsp;</p> <table border="1" cellspacing="0"> <tbody> <tr class="firstRow"> <td style="vertical-align:top" width="48%"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Product model</span></span></span></span></span></span></p> </td> <td style="vertical-align:top" width="48%"> <p align="left">YHV-CD16</p> </td> </tr> <tr> <td style="vertical-align:top" width="175"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Maximum number of access paths</span></span></span></span></span></span></p> </td> <td style="vertical-align:top" width="514"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">16 routes</span></span></span></span></span></span></p> </td> </tr> <tr> <td style="vertical-align:top" width="175"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Ambient temperature</span></span></span></span></span></span></p> </td> <td style="vertical-align:top" width="514"> <p>-25~+40℃</p> </td> </tr> <tr> <td style="vertical-align:top" width="175"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Environmental humidity</span></span></span></span></span></span></p> </td> <td style="vertical-align:top" width="514"> <p>0~90%</p> </td> </tr> <tr> <td style="vertical-align:top" width="175"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Working altitude</span></span></span></span></span></span></p> </td> <td style="vertical-align:top" width="514"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">3000 meter level</span></span></span></span></span></span></p> </td> </tr> <tr> <td style="vertical-align:top" width="175"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Maximum input current per circuit</span></span></span></span></span></span></p> </td> <td style="vertical-align:top" width="514"> <p>DC15A</p> </td> </tr> <tr> <td style="vertical-align:top" width="175"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Maximum open circuit voltage per circuit</span></span></span></span></span></span></p> </td> <td style="vertical-align:top" width="514"> <p>DC1000V</p> </td> </tr> <tr> <td style="vertical-align:top" width="175"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Fuses</span></span></span></span></span></span></p> </td> <td style="vertical-align:top" width="514"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Each positive and negative pole is connected to a DC1000V photovoltaic dedicated fuse</span></span></span></span></span></span></p> </td> </tr> <tr> <td style="vertical-align:top" width="175"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Lightning arrester</span></span></span></span></span></span></p> </td> <td style="vertical-align:top" width="514"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">The positive and negative poles of the busbar are respectively connected to photovoltaic special lightning arresters</span></span></span></span></span></span></p> </td> </tr> <tr> <td style="vertical-align:top" width="175"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Circuit breaker</span></span></span></span></span></span></p> </td> <td style="vertical-align:top" width="514"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">The positive and negative poles of the busbar are respectively connected to photovoltaic dedicated circuit breakers, with a rated current of 160A and a voltage of DC1000V</span></span></span></span></span></span></p> </td> </tr> <tr> <td style="vertical-align:top" width="175"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Design of combiner box</span></span></span></span></span></span></p> </td> <td style="vertical-align:top" width="514"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Enclosed design of the box, anti-static, shockproof, dustproof, rust proof, rain proof, flame retardant</span></span></span></span></span></span></p> </td> </tr> <tr> <td style="vertical-align:top" width="175"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Heat dissipation of combiner box</span></span></span></span></span></span></p> </td> <td style="vertical-align:top" width="514"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Natural heat dissipation of the box</span></span></span></span></span></span></p> </td> </tr> <tr> <td style="vertical-align:top" width="175"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Lightning protection of combiner box</span></span></span></span></span></span></p> </td> <td style="vertical-align:top" width="514"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Grounding and lightning protection of busbar box</span></span></span></span></span></span></p> </td> </tr> <tr> <td style="vertical-align:top" width="175"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Insulation</span></span></span></span></span></span></p> </td> <td style="vertical-align:top" width="514"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Input to ground, output to ground, and input to output insulation resistance </span><span style="font-family:宋體">&ge; </span><span style="font-family:Calibri">20M </span><span style="font-family:宋體">&Omega;</span></span></span></span></span></span></p> </td> </tr> <tr> <td style="vertical-align:top" width="175"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">System response time</span></span></span></span></span></span></p> </td> <td style="vertical-align:top" width="514"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">1 second</span></span></span></span></span></span></p> </td> </tr> <tr> <td style="vertical-align:top" width="175"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Working power supply</span></span></span></span></span></span></p> </td> <td style="vertical-align:top" width="514"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Using an internal combiner DC power supply</span></span></span></span></span></span></p> </td> </tr> <tr> <td style="vertical-align:top" width="175"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Testing accuracy</span></span></span></span></span></span></p> </td> <td style="vertical-align:top" width="514"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Photovoltaic cell measurement accuracy level 0.5, external analog quantity level 0.2</span></span></span></span></span></span></p> </td> </tr> <tr> <td style="vertical-align:top" width="175"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">RS485 communication</span></span></span></span></span></span></p> </td> <td style="vertical-align:top" width="514"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">RS485+magnetic isolation/Modbus RTU protocol, 4800/9600/19200/38400bps</span></span></span></span></span></span></p> </td> </tr> <tr> <td style="vertical-align:top" width="175"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">Shell waterproof grade</span></span></span></span></span></span></p> </td> <td style="vertical-align:top; word-break:break-all" width="514"> <p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋體"><span style="font-weight:normal"><span style="font-family:Calibri">IP65, for indoor and outdoor installation and use</span></span></span></span></span></span></p> </td> </tr> </tbody> </table>