초록 ▼

To select a designated bottle in a sampler, the distributor is calibrated as to position and the outlet of the distributor arm is moved over the desired bottle by counting changes in incremental angular movement of the distributor arm until it is over the bottle. The position of the distributor arm

To select a designated bottle in a sampler, the distributor is calibrated as to position and the outlet of the distributor arm is moved over the desired bottle by counting changes in incremental angular movement of the distributor arm until it is over the bottle. The position of the distributor arm is recorded in memory. To calibrate the distributor, the arm is rotated against a stop member in a first direction, then in a second direction and the overrun of in excess of 360 degrees of the motion of the distributor arm is determined and corrected. A series of random numbers is generated for depositing of samples, the distributor is moved at designated times over the bottles in a random order to deposit a sample and the ordering of bottles is recorded. The rollers of a peristaltic pump are supported to prevent said rollers from compressing said tube more than the thickness of the walls of the tube. A functional module for a bubbler or pH probe or ultrasonic level detector may be connected to the housing.

대표청구항 ▼

A method of drawing samples into a plurality of containers comprising the steps of: calibrating a distributor arm as to position; drawing samples with a peristaltic pump; selecting a designated container; moving the distributor arm directly to the designated container without applying samples to con

A method of drawing samples into a plurality of containers comprising the steps of: calibrating a distributor arm as to position; drawing samples with a peristaltic pump; selecting a designated container; moving the distributor arm directly to the designated container without applying samples to containers between the starting position of the calibrated distributor arm and the designated container by counting changes in incremental angular movement of the distributor arm until it is over the designated container wherein an outlet end of the distributor is connected to the distributor arm; causing at least one of said samples to flow into the designated container by rotating the outlet end of the distributor over the designated container and causing the sample to flow through the distributor into the designated container; and continually updating the position of the distributor arm in memory.