Sentec Sem228t Hot Selling High Accurately Pyranometer 4-20mA/RS485 Measure Solar Total Radiation Transmitter

• Product Name: Solar Radiation Detector Sensor
• Accuracy: +3%,-3%
• Working Temperature: -40~+60
• Power Supply: 10V~30V DC
• Measuring Range: 0-2000W/M²
• Transport Package: Carton
• Model NO.: SEM228T
• Specification: 24*21*11cm 1kg
• Trademark: SENTEC
• Origin: China
• HS Code: 9033000090
• Production Capacity: 50000

Product Description

Product Description

SEM228T total solar radiation transmitter adopts the thermoelectric principle and can be used to measure solar radiation with a spectral range of 0.3~3μm. The sensing element adopts a wire-wound electroplating thermopile, and the sensing surface is a black layer with high absorptivity. Using the thermal effect of radiation,Absorb solar radiation and convert it into thermoelectromotive force. It also has a temperature compensation function, which can accurately measure solar radiation. The double-layer glass cover above the sensing surface can not only reduce the influence of air convection on the device, but also block the radiation of the cover itself. And add a radiation shield to measure scattered radiation.

SEM228T support standard analog signal or Modbus-RTU 485 communication protocol, which can directly read the current total solar radiation value, and the wiring method is simple. The appearance is beautiful, and the installation space is small. Products are widely used in solar energy utilization, meteorology, agriculture, building materials aging and air pollution and other departments to measure solar radiation energy.

 

Product Parameters

Power supply	10V~30V DC, or without power supply
Power consumption	485 output: 0.8W   4~20mA/0~5V/0~10V: 1.2W
Output signal	485 (standard Modbus-RTU protocol)   4~20mA current output 0~5V/0~10V voltage output
Working temperature	-40ºC~60ºC
Working humidity	0%~RH
Sensitivity	7~14 μV·W-1·m2
Internal resistance	about 300Ω
Response time (99%)	≤30s
Non-linear error	≤±3%
Corresponding error of directionality	≤±30W/m² (≤±20W/m² customized)
Temperature response error	≤±8% (-40ºC~+40ºC)
Corresponding error of tilt	≤±5%
Spectral range	0.3~3μm
Measuring range	0-2000W/m²
Resolution	1W/m²
Accuracy	±3%
Annual stability	≤±3%
Spectral selectivity	≤±10%
Cosine response error	≤±5%

 

Company Profile

SENTEC concentrates on the solutions for sensing technology.

For decades, SENTEC quality guaranteed products insist strictly manufactured in accordance with ISO, CE directive and fully RoHS compliant. On the basis of large-scaled production factories and international excellent devices, SENTEC inspections, tests and calibrations are well recognized throughout the world with experienced OEM service.
The advance solutions, superior quality, reliable performance, customer satisfaction and excel-
lent technical services are always our sole and eternal goal!

 

FAQ

Q: How long will you give me the reply?

A: we will contact you in 1 hours as soon as we can.
Q:Could I visit your factory?
A: Sincerely invite you to visit our factory.
Q: Do you provide samples ?
A: Yes,we have materials in stock to help you to get the samples as soon as we can.
Q: How about the quality of the managements ?
A: We have a complete quality control system , all of our products will be fully pre-inspection by QC departments before shipping to you . We have the certification of ISO,CE we could send the certification test of our company to you
Q: What is your terms of payment ?
A: We could accept T/T, Paypal, WU ,Credit Assurance
Q: What is the warranty for your product ?
A: Warranty: 2 years, Lifetime maintenance