Patent ID: 9581566
Date: 2017-02-28
CPC Classifications: G01N

Claim:
1. A biological sample measurement device comprising: a main body case including a sensor mounting component; a measurement component including an input side, the measurement component connected to the sensor mounting component; a detector configured to detect a mounting of a sensor to the sensor mounting component; a processor connected to the measurement component and the detector, the processor including a measurement preparation mode and a measurement mode, the processor programmed to: a memory component connected to the processor, the memory component including a first reference range and a second reference range; Check A occurs in a state where the input side of the measurement component is connected by a switching component to a first reference resistor, the measurement component measures a first reference resistance and finds a first measurement value; the processor determines whether or not the first measurement value is within a first reference range stored in the memory component; the processor determines proper measurement is impossible if the first measurement value should be outside the first reference range; Check B occurs in a state where the switching component puts the input side of the measurement component in an open state; the measurement component measures in the open state and finds a second measurement value; the processor determines whether or not the second measurement value is within a second reference range stored in the memory component; the processor determines proper measurement is impossible if the second measurement value should be outside the second reference range; the switching component connected to the input side of the measurement component, the first reference resistor, and the sensor mounting component; the switching component configured to switch between at least a first state, a second state, and a third state, wherein all three states are different from each other, the first state connecting the input side of the measurement component to the first reference resistor, the second state connecting the input side of the measurement component to the sensor mounting component, the third state being the open state; the processor is further programmed to perform Check A while the switching component is in the first state; and the processor is further programmed to perform Check B while the switching component is in the third state.