The present invention provides a video processor which has a simple circuit configuration and can scale up and down image resolution freely. Preferably, the coupling assembly includes a magnetic body and a corresponding component which is magnetically attracted to the body. In the adaptive algorithm once a high enough resistance on a blown eFuse has been attained it will not receive additional programming pulses that could cause it to become measurably lower resistance. The device allows the density of the sample fluid to be monitored with reference to the oscillation of the vibrating beam member, thus allowing the monitoring of the clotting of the fluid sample. The cover plate includes contact points for receiving the rotation points in movable relation.