MC-GH photosynthetically active radiation sensor

send use speak bright book

Beijing Mengchuang Weiye Technology Co., Ltd

Our company solemnly promises that any sensor purchased from our company will be used forOur company provides free one-on-one technical support (including wiring methods, data analysis, maintenance, etc.) until the user masters the use.

Product Introduction

MC-GH typeThe photosynthetically active radiation sensor is mainly used for measuringThe photosynthetically active radiation of natural light in the wavelength range of 400-700nm is simple to use and can be directly connected to a digital voltmeter or data collector, making it suitable for use under all-weather conditions.

The sensor uses a silicon photodetector and is equipped with aOptical filters ranging from 400 to 700nm. When illuminated, a voltage signal proportional to the incident radiation intensity is generated, and its sensitivity is proportional to the cosine of the direct angle of the incident light. Each photosynthetically active radiation meter provides its own sensitivity (when outputting the original millivolt voltage), the unit can be directly calculated asμ•mol/m²The value of s.

This table is widely used in agricultural meteorology and research on crop growth.

Baud rate:9600

Data bit:8

Stop position:1

Checkpoint: None

1.2 Return error code regulations:

Sensors receive incorrect commands(including CRC16 validation errors), all implement the method of not returning error codes. When the upper computer fails to receive return data after sending the instruction for 100ms, it may consider the instruction to have failed and resend the instruction.

2.1 StandardsMODBUS Register Description

Special attention:The number or length of registers in the MODBUS command is two bytes and 16 bits per unit (high byte first, low byte last), rather than a single byte and 8 bits per unit.

Users should ensure that the range of the address and quantity of registers in the command is within the specified range of this system. If it exceeds the range, the output result of the sensor will be unpredictable, and the user should ensure it in the upper computer software designThe MODBUS command complies with the requirements of this manual

Internal registers: using function codes03 Reading; function code06 write

Note: The data in the address section isRepresented in hexadecimal, for example:address20 (decimal) read and write value is 0x14

Below is an example to introduce the use ofMethod of accessing system registers with Modbus RTU commands:

Warranty and after-sales service:

Warranty commitment: The warranty period for the product starts from the delivery date and is12 months (excluding product problems caused by failure to operate according to corresponding technical requirements or other human actions).

After sales commitment: Users can consult technical issues over the phone and receive clear solutions. If it is a quality issue with the product itself, it can be returned to the factory for repair or replacement.

After sales phone number:0310-8033736

Address: Room 206, Building 3, Courtyard 2, Longxiang Plate Making Group, Huilongguan Town, Changping District, Beijing

Contact person: Song Xuewen (same WeChat account)

Telephone:

Fax: EnterpriseQQ：949219322

Website: www.sul2100.cn Email:bj6213@126.com