Warranty Please note the loss of warranty and non-liability by unauthorized manipulation of the system. You need a written permission of the LAMBRECHT meteo GmbH for changes of system components. These activities must be operated by a qualified technician. The warranty does not cover: Mechanical damages caused by external impacts (e.g.
LAMBRECHT meteo | 16123 The net radiometer is designed for continuous outdoor use. Contrary to most common instruments for measurement of net radiation, it is not equipped with plastic or glass domes. The domes are replaced by a Teflon coated sensor surface.
LAMBRECHT meteo | 16123 • The sensitivity to thermal shocks can be demonstrated by touching the sensor edge (the blank metal) with your hand for some seconds. The resulting shock will result in a signal drift, or a zero offset that only slowly will settle down again.
Most electrical speci cations are determined by thermopile. Spectral speci cations are determined by the black te on LAMBRECHT meteo | 16123 coating. Both the up facing and the down facing sensors have an angle of aperture of 180°...
LAMBRECHT meteo | 16123 The up facing sensor has been calibrated for solar radiation wavelengths. It is assumed that the lower sensor has the same sensitivity. This might not be true; the sensor can have a non perfect symmetry. This however is neglected.
LAMBRECHT meteo | 16123 Calibration Recalibration is suggested every two years. For it the sensor should be sent in to the supplier. The checking of the accuracy and sensor performance could be conducted before. For this purpose a higher standard sensor runs parallel to the sensor, which should be calibrated, during two sunny days.
LAMBRECHT meteo | 16123 It is advised to measure at a height h of at least 1.5 meters above the surface in order to avoid shading effects and to promote spatial averaging. The down facing sensor signal is representative (99 %) for a circular area with radius 10 h.
LAMBRECHT meteo | 16123 10. Disposal LAMBRECHT meteo GmbH is listed and registered at the Stiftung Elektro-Altgeräte Register ear under: WEEE-Reg.-Nr. DE 45445814 In the category of monitoring and control instruments, device type: “Monitoring and control instruments for exclusively commercial use”.
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