Patent ID: 9625435
Date: 2017-04-18
CPC Classifications: B01L,G01N

Claim:
1. A basic unit for a mobile water analyzing system, the basic unit comprising: a test element receptacle comprising a slot having a first side and a second side arranged opposite to the first side; a photometer comprising a light source configured to generate a measurement beam and a light detector configured to receive the measurement beam, the light source being arranged on the first side of the slot, and the light detector being arranged on the second side of the slot; a photometric measuring track arranged across the slot; a cartridge slot; a removable cartridge configured to be inserted into the cartridge slot, the removable cartridge being formed as a drum and comprising a drum body, a circular sealing foil, and chambers, each chamber being configured to hold a test-element comprising a pump port and a microfluidic sample line, the circular sealing foil being configured to axially seal the drum body so that each of the chambers is sealed so as to be gas-tight and fluid-tight; a cartridge rotary actuator configured to rotate the removable cartridge; a test-element shifter configured to shift a respective test-element from a respective chamber into a measuring position in the slot of the test element receptacle and, when a photometric measurement is finished, to eject the respective test element out of the basic unit, and a pump actuator, wherein, the slot of the test element receptacle is configured to have the test element be inserted therein so that, when the test element receptacle is inserted into the slot, the pump actuator is connected to the pump port, and the measurement beam, the photometric measuring track, and a part of the microfluidic sample line are all aligned with each other so that the photometric measurement occurs along a length of each of the photometric measuring track and the part of the microfluidic sample line, and not in a cross direction thereto.