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Solar Monitoring Station EKO MS-90+

  • Order number
    S64190
  • Availability

    Usually on stock
The Solar Monitoring Station EKO MS-90+ is a cost-effective system combining DNI Sensor EKO MS-90 and Pyranometer EKO MS-80S for DNI, GHI and DHI data without sun tracker.

Description

The Solar Monitoring Station EKO MS-90+ is a cost-effective system combining DNI Sensor EKO MS-90 and Pyranometer EKO MS-80S for DNI, GHI and DHI data without sun tracker. These two instruments are connected via EKO C-Box Modbus Processing interface with a GPS receiver and a processing unit.The station accurately measures DNI and GHI and calculates Diffuse irradiance (DHI) from the measurement data and the sun position.The EKO C-Box is delivered with a 10 m cable, the sensor has a 1.5 m cable to connect to the C-box. The station provides a digital output signal (RS-485 Modbus RTU) and can be easily connected to various data acquisition systems in solar energy projects and meteorological stations (dataloggers, inverters, SCADA etc). It can also be connected to a PC.The DNI Sensor EKO MS-90 sensor has a broad spectral response (300-2500 nm) and is calibrated outdoors with a pyrheliometer.

C-Box Modbus Processing interface EKO

The C-Box Modbus Processing interface provides different functions for sensor control and data processing of different EKO sensors.

In combination with the DNI sensor EKO MS-90, the pulsed output can be converted into a continuous output Voltage or RS-485 Modbus RTU signal. With an additional pyranometer and optional GPS receiver a turnkey system can be configured to measure DNI, GHI and DHI over Modbus.

By using this device, the DNI sensor EKO MS-90 analogue voltage output peaks correspondent to DNI are detected and converted to digital. It then transmits and receives data with serial communication method.

Since it is compatible with RS-485 communication, it is possible to connect with PV monitoring devices, which have this communication function. By setting the pyranometer sensitivity on signal converter, the voltage signal output from pyranometer can be converted to solar irradiance.

The signal converter is integrated in an IP65 enclosure for outdoor installation. The settings for the measurements and communication can be changed by using the setup software.

DNI Sensor EKO MS-90

The DNI Sensor EKO MS-90 measures the Direct Normal Irradiance (DNI) without a sun-tracker.

It has a rotating mirror, which only reflects the sunbeam onto a thermal detector.

The DNI Sensor EKO MS-90 can be used in combination with any pyranometer to measure the DNI and Global Horizontal Irradiance (GHI). Hence the Diffuse Horizontal Irradiance (DHI) can be calculated.

Specifications

Solar Monitoring Station EKO MS-90+
General Information
Order Number S64190
Technical Specifications
Classification ISO 9060:2018
Class C (DNI) + Class A (GHI, DHI)
Output DNI, GHI, DHI (RS-485 Modbus RTU)
Temperature Response (-20°C … +40°C) ± 5 %
Non-linearity ± 2.5 %
Operating Temperature Range -20 … +50 °C
Wavelength Range 300 - 2500 nm (50% points)
Power Supply 10.5 - 12.5 VDC
Dimensions 350 (W) x 250 (L) x 200 (H) mm incl. optional base plate
Weight 2.5 kg
Ingress Protection IP 67
Cable Length 10 m
Geographic Application Latitude (-58° … +58°) / Longitude (0° – +360°)
Power Consumption < 6 W
Warranty 5 years
Manufacturer
EKO Instruments
C-Box Modbus Processing Interface EKO
General Information
Order Number -
Specifications
Communication Interface RS-485 Modbus RTU
Channels 2 units
Functions DNI, GHI, DHI processing
Operating Temperature Range -40 … +80 °C
Voltage Range 12 V
Power Consumption < 1 W
Average Power Consumption 0.5 W
Power Supply 12 VDC ± 10% (Note: Supply voltage critical for MS-90)
Protection IP 65
Dimension (W x L x H) 125 x 60 x 80 mm
Weight (without cable) 0.5 kg
Input Signals EKO MS-90 DNI sensor – Analog pulse 0 … 2 V
EKO MS-80S pyranometer – RS-485 Modbus RTU
Warranty 5 years
C-Box System Specification
Input Parameters EKO MS-90 DNI sensor – DNI
EKO MS-80S pyranometer – GHI
Output Parameters DNI / GHI / DHI
(Meta data T, RH, Tilt, Long / Lat position, Solar Position, Time)
Sampling 1 s (15 s DNI)
Irradiance Range DNI (Measured) 120 … 1600 W/m²
Irradiance Range GHI (Measured) 0 … 1600 W/m²
Irradiance Range DHI (Calculated) 0 … 500 W/m²
(DHI = GHI when DNI < 120 W/m²)
Manufacturer
EKO Instruments
DNI Sensor EKO MS-90
General Information
Order Number -
Classification ISO 9060:2018
Sensitivity 1.785 µV/W/m²
Spectral Range 300 ... 2700 nm
Electrical & Output
Power Supply 10.5 ... 12.5 V DC
Output 0 - 2V (Pulse)
Power Consumption < 5 W
Environmental
Operating Temperature -20 ... +50 °C
Protection IP67
Geographic Application Latitude (-58° to 58°) / Longitude (0° to 360°)
Performance
Non-Linearity ±2.5 %
Wavelength Range 300 - 2500 nm (50% points)
Physical
Dimension (W x L x H) 350 x 250 x 200 mm (incl. optional base plate)
Weight (without cable) 2.5 kg
Cable Length 10 m
Options
Cable Length 20 / 30 / 50 m
Base Plate 350 x 250 / levelling feet mm
Power Supply 100 to 240 VAC / 12VDC / 200 x 140 x 80 mm / 2.5 kg
Manufacturer
EKO Instruments

Dimensional drawing

C-Box Modbus Processing interface EKO
DNI Sensor EKO MS-90

Sensor connection diagram

Solar Monitoring Station EKO MS-90+
Recommended connection of C-Box to Ammonit Meteo-40 Data Logger Biasing with M83570 and galvanic isolation with Repeater M84100.
Important Note: Restrict the power supply for the C-Box to 12 V.
Cable Colors for C-Box cable: Supply and RS485 Interface
Cable Color C-Box Function
brown + 12V DC
white GND
blue Data +
black Data -
grey not connected

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