Abstract: The invention relates to a monitoring arrangement (1) for a reservoir (2) with a plurality of support members (21), the monitoring arrangement (1) comprising: at least one load cell module (3) with a base plate (31) for attachment to a support surface (100) and an elongated measuring device (37) attached to the base plate (31); and at least one adapter unit (4) configured to be attached to a support member (21) of the reservoir (2) and rest on the measuring device (37); wherein the base plate (31) of the at least one load cell module (3) comprises a recess (32) allowing the base plate (31) to at least partly surround the support member (21) circumferentially when installed, and the measuring device (37) is arranged on the base plate (31), such that it at least partly extends over the recess (32).

Abstract: A technique for performing background suppression in photodiode detectors is disclosed. A first detector measures the light emitted by the source to be measured and the background light, while a second detector simultaneously measures the background light only. The value measured by the second detector is subtracted from the value measured by the first detector, and the difference represents the portion of the first detector's measured value which is attributable to the source to be measured.