| 摘要 |
The apparatus comprises a measuring cell (1) which consists of a measuring part (2) having a measuring electrode (26) and a reference electrode, and of a mixer part (3) for mixing the sample stream with a conditioner. The mixer part is formed by a Venturi meter (20), through which the sample stream flows, and in which a feed line for the conditioner ends in the region in front of its constriction (21). The conditioner is sucked into the Venturi meter by the sample stream and is mixed therewith in the expansion (22) following the constriction. As a result there is an intensive mixing of sample stream and conditioner without a special pump being necessary to convey the latter, and the desired pH value is set in the mixture in each case within a very short time. <IMAGE> |
