It is a metering device (1) is proposed, which a metered receiving and / or delivery of fluid samples makes it possible to. It contains a by means of a positioning device (23) movable metering head (17), which has a metering device (25), which, by way of a plurality of in a matrix-like distribution units (2) has arranged. Each dosing unit (2) is provided with electrically operable drive means (7) and has provided on a rearward end portion (8) arranged drive - contact means (42). The dosing head (17) also has a control head (26) with electronic control means (45), which at one of its main - control means (63) are connectable. The control head (26) has on an underside (47) arranged control - contact means (43) which, with the control means (45) are connected. In the case of the control head (26) is a with respect to the metering device (25) separate unit which, on the metering device (25) can be joined and / or from the metering device (25) is removable, wherein in each case at the same time, an electrical contacting or separation between the control - contact means (43) and the drive - contact means (42) takes place.
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