Reader configured to receive cartridge, electrochemical sensor assembly, and cartridge

The invention relates to a reader configured to receive a cartridge, an electrochemical sensor assembly, and a cartridge. The reader includes a pneumatic assembly configured to supply a vacuum at a set level Pv and a pressure at a set level Pp to the cartridge, where Pp is greater than Pv. The pneumatic assembly comprises a single-motor single-head pump, wherein a first check valve on a first side of the pump, and a second check valve on a second side of the pump, the first check valve having an opening pressure Pv and the second check valve having an opening pressure Pp. 本发明涉及一种经配置以接纳卡盒的读取器、电化学传感器组合件及卡盒。所述读取器包括：气动组合件，其经配置以将设定水平Pv下的真空及设定水平Pp下的压力供应到所述卡盒，其中Pp大于Pv，其中所述气动组合件包括单电机单头泵、所述泵的第一侧上的第一止回阀、及所述泵的第二侧上的第二止回阀，所述第一止回阀具有启开压力Pv，且所述第二止回阀具有启开压力Pp。