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Product Details

Products Description

Photovoltaic Combiner Box Monitor, DK818-24, is specially applied to intelligence PV junction box for monitoring the operating status of the PV cells, measuring the current and voltage of the PV cells, collecting status of Surge protection Device (SPD) and DC breaker. Current measurement uses Hall Effect to collect data, which are isolated collection and threaded installation to increase reliability of junction box. This device can not only displays measured and collected data and status of device, but also can connects industrial equipments and computers through RS485 interface to constitute a measurement and control system.

Technical parameter

Model	DK818-20
Application	Smart Photovoltaic Confluence Monitoring Device
DC Voltage	1 channel, 50-1200V DC
DC Current	1-16 channel forward and reverse DC0-20A, PV current detection, total current
DC Power	1-16 channel forward and reverse power
Communication	1 channel RS485 communication port, MODBUS-RTU communication protocol, can be connected to the PC monitoring system.
Temperature Measurement	1 internal environmental temperature, range: -55 to +125 ℃
Display	6 digits nixie tube, power save mode after 5 min. without any operating, press any key to normal mode
Remote Signaling	2 digital input
Parameters Setting	The following parameters can be set by buttons: 1. Device address. 2. Communication rate. 3. Parity bit.
Size	343mm×30mm×65mm (L ×W×H)

Auxiliary Power Supply	DC 5V (Range: 4.90~5.10V)
Power Consumption	< 5 W
Communication	RS485 Modbus RTU protocol
Communication Speed	1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 (unit: bps) changeable
Communication Verify	Can be set (0: none, 1: 1stopBit odd, 2: 1stopBit even)
Communication Medium	1.0 square shielded twisted pair, 1200 m communication distance, the maximum nodes: 128
Digital Input	Passive dry node
# of Input Voltage	1
Range of Voltage Measurement	50 – 1200 V DC
# of Input Circuits	16
Range of Input Current	0 – 20A
Measurement Accuracy	Voltage, Current : 1% FS (25℃)
Temperature Coefficient	250ppm/K
Working Temp.	-35 ~70℃
Storage Temp.	-40 ~ 80℃
Relative Humidity	5% - 95% Non-Condensing
Response Time	1 s
Protection Level	Whole device IP30
Altitude	≤3000 m, special order for over 3000m
Insulation Resistance	≥100MΩ

The State of Switch Input Wiring Diagram

The input of this device is passive node, and the device supply power for itself so that no external power is need. Connect the
passive dry contact of the outside device to the input of the switch via the common node when wiring.

Dimension and Installation

OUR SERVICES

●-Exclusive service

Professional sales and technical teams are responsible for your order.

●-Consulting service

Provide detailed product data sheets, price lists, photos and certificates.

●-OEM & ODM

Product parameters/appearance/packaging - customized to suit your target market.

●-Two year warranty

All products from components to finished products have been inspected many times by professional departments.

●-Order Process Tracking

Update you in real time on the progress of production, testing, packaging and storage.

Company Profile

●Company Profile

The founder of the company is a leader in lightning protection in China. The company has been established for 33 years and is a Well-Known Lightning Protection Brand In China. Our products have won a good reputation in the United States, Thailand, Malaysia and other regions.

●More than 100,000 cases of lightning protection project experience

We are a professional lightning protection service provider and have completed more than 100 thousand lightning protection projects including the lightning protection project of Baihetan Hydropower Station, the second largest hydropower station in the world.

●Fast delivery time

●Excellent Design and R&D Capabilities

26+Patents

Editor-in-Chief and Participate in National Standard Design

CNAS national laboratory

26+Patents（Visit More）

We have 10/350μs 40KA and 8/20μs 120KA simulated lightning test equipment, high voltage TOV and low voltage TOV and other test equipment. If necessary, we can provide the parameters of each test for customers' reference.

●Certificates

CE / ISO9001 / ROHS / FCC / CQC certificates etc.

Packging & Delivery

Delivery Time

3-15 days after confirming order,detail delivery date should be decided according to production season and order quantity.

Shipping

1. Shipment port:SHENZHEN/GUANGZHOU
2. By Air or by Sea for batch goods,Airport/ Port receiving;
3. Customers specifying freight forwarders or negotiable shipping methods!

FAQ

Q1:who are we?

A1:We are based in Guangxi, China, start from 1989,sell to Oceania(25.00%),Western Europe(10.00%),EasternAsia(10.00%),Mid East(10.00%),Domestic Market(10.00%),Southeast Asia(10.00%),Eastern Europe(10.00%),South America(10.00%),NorthAmerica(5.00%).

There are total about 101-200 people in our office.

Q2:Which certificate do you have for your equipment?

A2:Wehave established a complete quality management, supply chain and after-sales service system. Continuously introduce 6S international advanced concepts in management, and have successively passed ISO9001,CNAS National Laboratory, CQC certification,CE certification, Rohs certification.

Q3:how can we guarantee quality?

A3:Strict screening and assessment of raw material suppliers, screening and inspection before storage Always a pre-production sample before mass production; Automatic machine +manual double inspection before products are shipped, to ensure product consistency.

Q4:Could I have a sample or small order first for testing?
A4:Of course, sample order and small order are acceptable, especially for new customers under certain condition.

Q5: Is there a discount for larger orders?

A5: For new customers, there is a small discount, but when the value of the order is increased, we will provide a larger discount.For previous customers, we are happy to provide a discount for your loyalty.

Q6:what can you buy from us?

A6:Surge Protector,Lightning Rod,PV Supporting Equipments,power cord,signal protection

Q7:why should you buy from us not from us not from other suppliers?

A7:Guangxi Dikai Sci & Tech Co., Ltd.has been specialized in producing lightning protective products, researching development of lightning protective technology, consulting lightning protection service, and engineering lightning protection cases for 30 years.

Q8.what services can we provide?

A8:Accepted Delivery Terms:FOB,CIF,EXW,Express Delivery； Accepted Payment Currency:USD,EUR,CNY; Accepted Payment Type: T/T,L/C,Western Union,Cash; Language Spoken:English,Chinese,Spanish.

Q9.Can I only buy some spare parts from you?

A9:Of course, we can sell everything from spare parts to finished products.

Q10.Can you can design the equipment according to our size?

A10:Of course, we can customize any product according to customer requirements, and we can all provide design solutions and solutions.

Should you have any questions, please do not hesitate to contact us.