The application is directed to an extracorporeal blood processing system capable of using dialysate to prime the system. The outer cylinder and inner cylinder are secured to a canister flange on one end and include a domed face on the other end. In one embodiment, the optical device comprises an optical dynamic gain equalizer with a light modulator. If the web crawler completes its mission of retrieving documents from the web host prior to the expiration of the lease, the host load server releases the load capacity allocated to the web crawler and makes it available for other competing web crawlers. The test method detects a low impedance path between the integrated circuit device IO pin and GND caused by a parasitic SCR that is not detectable using conventional latch-up detection test methods. The resonant circuit is excited, sequentially at a plurality of frequencies which are nearly equal to the resonance frequency of the resonant circuit.