Guangzhou Siying Electronic Technology Co,Ltd

The SANDI solar charge controller adopts advanced digital control technology, touching keys and automatically operation. With the features of PWM (Pulse Width Modulation) battery charging and unique control technology, the PV charge controller improves battery life efficiently. The PV charge controller is only suitable for controlling solar modules. Never connect any other types of charging source to the controller. This can destroy the controller and/or the charging source permanently. To meet different solar power stationsâ?? need, there are 48Vã??96Vã??120Vã??192Vã??220Vã??240Vã?? 360Vã??384Vã??480Vã??492V and 600V other normal series voltage level base on different battery voltage of off-grid PV power station system project. Product Feature: 1, The solar controller uses high performance 32-bit chips which is excellent EMC design 2, The controller adopts advanced PID algorithm which has more accurate battery energy management system to improve the battery efficiency 45% at least 3, The controller adopts three charging stages (buck charging, equalize charging and float charging) which can maximize the utilization of photovoltaic modules and batteries 4, IGBT Modular design ensure stable and efficiency performance of solar controller and solar power system 5, The controller has perfect battery protection function and with multi-stage charging technology to improve battery life 35% at least 6, The controller has double loop control function of voltage loop and current loop, user can set the limiting charging current 7, Fully enclosed duct design and high-speed fan for cooling makes the controller working under harsh environments 8, The controller has power generation statistics and real-time power curve function, so we can know power generating information at any time 9, Colorful LCD display, touching key and multi-language option makes the HMC (Human Machine communication) easy and convenient. Users also can set working parameters through the LCD panel and touching keys according to different battery feature 10, The controller also has temperature compensation function and RTC real time clock function, 11, Standard Modbus protocol for RS-485 or GPRS communication to extend the communication distance (optional function) 12, The patent of second protection function which can protect battery from over charging due to power switch failure (optional function)

The SANDI solar charge controller adopts advanced digital control technology, touching keys and automatically operation. With the features of PWM (Pulse Width Modulation) battery charging and unique control technology, the PV charge controller improves battery life efficiently. The PV charge controller is only suitable for controlling solar modules. Never connect any other types of charging source to the controller. This can destroy the controller and/or the charging source permanently. To meet different solar power stations need, there are 48V 96V 120V 192V 220V 240V 360V 384V 480V 492V and 600V other normal series voltage level base on different battery voltage of off-grid PV power station system project. Product Feature: 1, The solar controller uses high performance 32-bit chips which is excellent EMC design 2, The controller adopts advanced PID algorithm which has more accurate battery energy management system to improve the battery efficiency 45% at least 3, The controller adopts three charging stages (buck charging, equalize charging and float charging) which can maximize the utilization of photovoltaic modules and batteries 4, IGBT Modular design ensure stable and efficiency performance of solar controller and solar power system 5, The controller has perfect battery protection function and with multi-stage charging technology to improve battery life 35% at least 6, The controller has double loop control function of voltage loop and current loop, user can set the limiting charging current 7, Fully enclosed duct design and high-speed fan for cooling makes the controller working under harsh environments 8, The controller has power generation statistics and real-time power curve function, so we can know power generating information at any time 9, Colorful LCD display, touching key and multi-language option makes the HMC (Human Machine communication) easy and convenient. Users also can set working parameters through the LCD panel and touching keys according to different battery feature 10, The controller also has temperature compensation function and RTC real time clock function, 11, Standard Modbus protocol for RS-485 or GPRS communication to extend the communication distance (optional function) 12, The patent of second protection function which can protect battery from over charging due to power switch failure (optional function)

The SANDI solar charge controller adopts advanced digital control technology, touching keys and automatically operation. With the features of PWM (Pulse Width Modulation) battery charging and unique control technology, the PV charge controller improves battery life efficiently. The PV charge controller is only suitable for controlling solar modules. Never connect any other types of charging source to the controller. This can destroy the controller and/or the charging source permanently. To meet different solar power stations need, there are 48V 96V 120V192V 220V 240V 360V 384V 480V 492V and 600V other normal series voltage level base on different battery voltage of off-grid PV power station system project. Product Feature: 1, The solar controller uses high performance 32-bit chips which is excellent EMC design 2, The controller adopts advanced PID algorithm which has more accurate battery energy management system to improve the battery efficiency 45% at least 3, The controller adopts three charging stages (buck charging, equalize charging and float charging) which can maximize the utilization of photovoltaic modules and batteries 4, IGBT Modular design ensure stable and efficiency performance of solar controller and solar power system 5, The controller has perfect battery protection function and with multi-stage charging technology to improve battery life 35% at least 6, The controller has double loop control function of voltage loop and current loop, user can set the limiting charging current 7, Fully enclosed duct design and high-speed fan for cooling makes the controller working under harsh environments 8, The controller has power generation statistics and real-time power curve function, so we can know power generating information at any time 9, Colorful LCD display, touching key and multi-language option makes the HMC (Human Machine communication) easy and convenient. Users also can set working parameters through the LCD panel and touching keys according to different battery feature 10, The controller also has temperature compensation function and RTC real time clock function, 11, Standard Modbus protocol for RS-485 or GPRS communication to extend the communication distance (optional function) 12, The patent of second protection function which can protect battery from over charging due to power switch failure (optional function)

MPPT Solar charge controller Feature 1. We choose high speed and high performance 32-bit processor with excellent EMC design 2. Advanced MPPT tracking algorithm, the tracking efficiency more than 99% 3. High performance IGBT power module as electronic switch, there is no any mechanical switch, plus multiphase synchronous rectification technology, improves the stable greatly 4. Ultrafast maximum power point tracking speed to ensure tracking efficiency 5. Accurate identification and tracking of multi-peak maximum power points 6. With current-limiting charging function, charging current can be set, friendly and compatible with various capacity batteries. 7. Widely PV arraysâ?? voltage input, this can save the cost of PV combiner box, wires and construction 8. Full enclosed duct design and high-speed fan for cooling makes the controller suitable for various harsh environment 9. It shows the ambient temperature. It also has automatic temperature compensation function and RTC real time function 10. The perfect battery protection function and multi-stage charging improves battery life 11. It has the statistical function of generating capacity which is very convenient for customers to view the daily, monthly and total charging capacity of the controller. 12. Complete menu display and operation, plus the humanized design of browsing interface, these makes the operation more easy 13. It can work with GEL. LEAD-ACID, LITHIUM and other type battery 14. Twice protection function to protect battery from damage when the power switch is down (optional) 15. Standard Modbus communication protocol for RS-485 or GPRS communication to extend the communication distance (optional function)

We choose high speed and high performance 32-bit processor with excellent EMC design Advanced MPPT tracking algorithm, the tracking efficiency more than 99% High performance IGBT power module as electronic switch, there is no any mechanical switch, plus multiphase synchronous rectification technology, improves the stable greatly Ultrafast maximum power point tracking speed to ensure tracking efficiency Accurate identification and tracking of multi-peak maximum power points With current-limiting charging function, charging current can be set, friendly and compatible with various capacity batteries. Widely PV arrays voltage input, this can save the cost of PV combiner box, wires and construction Full enclosed duct design and high-speed fan for cooling makes the controller suitable for various harsh environment It shows the ambient temperature. It also has automatic temperature compensation function and RTC real time function The perfect battery protection function and multi-stage charging improves battery life It has the statistical function of generating capacity which is very convenient for customers to view the daily, monthly and total charging capacity of the controller. Complete menu display and operation, plus the humanized design of browsing interface, these makes the operation more easy It can work with GEL. LEAD-ACID, LITHIUM and other type battery Twice protection function to protect battery from damage when the power switch is down (optional) Standard Modbus communication protocol for RS-485 or GPRS communication to extend the communication distance (optional function)

SANDI SERIES charging module is for electric vehicle charging station. With single-phase non neutral conductor AC input, it has the advantages of high efficiency, high power density and low harmonic. Functional details 1. Hot plug Plug technology is applied to the charging module to provide convenience for installation and maintenance. The access of the charging module to the system shall not disturb the output voltage of the system. 2. Advanced current sharing technology Under constant voltage working mode, the charging modules can share current automatically within 10S, with degree of unbalance less than �±0.5A. 3. Control of input limited power Refer to Fig. 1-10 for the relation between the output power and input voltage of the charging module. When the input voltage is within 360 Vac ~ 450 Vac (return difference is less than 5V), the module can output the maximum power of 20 KW; when the input voltage is within 260 Vac ~ 320 Vac, the module can still work normally under limited power mode. 4. Control of output constant power When there is a rated input voltage, the output power of the module is 20 KW. Refer to Fig. 11 for the relation between the output voltage and the output current of the module. The SD75050 module uses two operating modes with output voltage ranges of 50 to 750V. The module only selects the operating mode based on the value of the received demand voltage, and does not select the operating mode based on the actual output voltage. 5. Temperature limited power 6. Regulation of output current limiting point 8. Regulation of output voltage The output voltage of the module can be regulated constantly through the external monitoring module, with regulation range of 50Vdc ~ 750Vdc and minimum regulation step of 0.1 Vdc. 9. Fan control The built-in processor of the module can regulate the speed of the fan according to the internal temperature and output current of the module. 10. Protection of input overvoltage/ voltage shortage 11. Output overvoltage protection The overvoltage protection point is 260Vdc ~770Vdc (�±10 Vdc). Default is 778Vdc.The module can be started after manual intervention upon overvoltage protection. 12. Over-temperature protection The environmental over-temperature protection point is 80�°C. When the DC panel has a temperature over 100�°C, the module will stop working; when the DC panel has a temperature below 90�°C, the module will automatically work again. 13. Protection of internal bus fault When the internal bus voltage of the module is beyond the overvoltage/ voltage shortage protection point, the module will be powered off automatically. At this time, there is no output from the module and the fault indicator light is on. 14. Short circuit protection In case of short circuit of the module, it will be subjected to protective shutdown and the red indicator light of the panel is on, and this condition will be transmitted to the monitor of the "module fault".

HDD-A12Pro Desktop POS System Machine 12.5'' Full HD 1080P Printer Cash Register Pos Swipe Machine Product Name HDD-A12 Pro Material Plastic and Iron Function POS System, Cash Register Package Standard Export Carton Size: L 41cm* W 19cm* H 39cm Weight: 2.8 kg. Interface consists of USB, Serial, HDMI, LAN, SD Card and can be connected to cash drawer. Built-in 58 mm thermal printer with 2D barcode scanner