Solar radiation sensorhigh-quality measurement technology for the mass market

ISET Sensor

The new

Technical features of the

Photovoltaic plant system operators want tohave simple, quick and reliable informationabout the function of their PV-plant.Thermoelectric radiation sensors cannotcompared easily with a real PV-generatorwith respect to the "energy yield" becauseof their different spectral sensitiveness aswell as their different reflection- and tem-perature characteristics.In addition you have the relatively highacquisition cost.In contrast to this, the radiation sensors ofthe lower price category do not fulfill thelong-term accuracy requirements and mayfind no acceptance because of their "low-cost equipment ”, in particular in the field ofbuildings.The solar cell sensoreliminates these deficits. It fits well thephysical characteristics of the solargenerator. The simple and compact butnevertheless precise construct ionpredestine it for use

With the new housing design it gains thenecessary acceptance in the technicalservices for facilities as well as in thegeneral field of architecture.

The solar radiation is converted into aproportional current by an exact definedsolar cell . Via a specific shunt resistancewhich is coupled thermicall to the compactaluminum housing, the measured voltage isdetermined.The almost identical geometrical construc-tion of the test cell, comparable with PVmodules, as well as the specifically formedhousing with possibilities of outside tem-perature link-up and high weatherresistance assure reproducible results ofmeasurement.A Pt 1000 - temperature sensor registersthe cell temperature over a two-wire dataline with high measuring accuracy.The calibration of every

with a reference element constructed in an identical fashion an accreditedtest laboratory in W/m² and is documentedon a quality assurance calibrating certificate.

ISET

ISET

ISET

ISET Sensor

Sensor

Sensor

Sensor

in the field of buildingmeasurement technology.

is ar-chieved -

by

-

Spectral sensitivity of different sensors underAM 1,5 (normalized).

Further there are the same physical characteristics regardingtemperature, reflection and degradation.

With the for each photovoltaic technology thesuitable radiation sensor can be delivered.

ISET

ISET

Sensor

Sensor

It is clearly visible and derivable that for the energetical ratingand monitoring of a PV-plant should only be used the sametechnology of the sensor and the PV-plant because of thedifferent spectral sensitivity of the different technologies.

ISET Sensor

Photovoltaik

IKS

The relative measurement uncertainty is < ±4% (cryst.mat.) /< ±5% (am. mat.) The measurement uncertainty refers to aconfidence level of 1-alpha =95%

Pt 1000, laminated or bonded centrally under the celll

-25° to + 80° C

Temperature sensor

Operating temperature range

Technical data

Housing

Connecting cable

Available solar cell sensors

Measuring voltage

Calibration

- Aluminum, powder coating in facadequality, color is silvery grey *

- Mounting with two nuts M 5 backside- Housing pressure balance by means ofa special membrane.

AWG 26, shielded, black, length 3 m,Plug connected

- monocrystalline- polycrystalline- amorphousEmbedded under clear glass hardenedthermiclly or embedded like solar module

- about 100 mV (cal.val.) /1000 W/m²,25°C

- Specific shunt resistance coupledthermiclly to the case.

The calibration of everya reference element (quality

gradeA, constructed in an identical fashion)from an accredited test laborator in W/m²by I / Kassel.A calibrating printout similar to EN DIN17025 documents the product specificparameters.

ISET

ISET

Sensor

Sensor is

achieved by

yWES

Reseller

Monitoringsystem

Monitoring concept

Using the in a onitoringconcept the received radiation powermeasured on the PV generator level iscompared with the output (AC) generated bythe PV system.The comparison quotient represents afunctional and quality parameter for the PV-plant in simplest way.By the implemented evaluation logic, solarmodule manufacturers, traders and evenelectricians receive via the cumulatedenergy output an insight into a simplified"course of life documentation" of theirproducts. In this way, questions about a"guaranteed” energy output are discussedmore reasonably, the energy output can beprovable.

ISET Sensor m

the

PV-Generator Inverter Main

Consumption loadSENSOL - SensorÒ

P -MeterAC

Digital analysis device

=~

¾1280 W

Subject to alteration. State: 2014-06

ISET Sensor

ISET Sensor

¾

IKS Photovoltaik GmbH

Phone +49 (0) 561 / 9538050Fax +49 (0) 561 / 9538051

Training systems

Measurement engineering

Special developments

An der Kurhessenhalle 16 b34134 Kassel / Germany IKS

Photovoltaik

Www.iks-photovoltaik.deinfo@iks-photovoltaik.de

Photovoltaik

IKS