| 摘要 |
<p>The device contains a measuring comb (8) for the test material, the plate-like projections of which define measuring gaps (S1 to S4) of differing gap width, into which the test material is guided for determining the characteristics. Arranged in the region of the measuring comb (8) is a member (21, 22) for the temporary removal of the test material from the measuring gap and for the subsequent guided insertion of it into this during the zero balancing of the device. This on the one hand relieves the attendant of the manual removal of the test material from the measuring gap and on the other hand guarantees that the test material subsequently enters the correct measuring gap again, thereby avoiding possible operating errors. <IMAGE></p> |
