17
⑴
Before testing the sample, the instrument should be calibrated with water.
With 0.5ul injector inject 0.1ul water, then the test result of the instrument
should be "100 ± 3ug (excluding the sampling error)", the general calibration 2
-3 times, the result within the error range can measure sample.
⑵
In the normal measuring process, per 100 ml of the reagent can be used
with not less than 200 mg of water reaction, if the measuring time is too long,
the reagent sensitivity decreased, should replace new reagents. According to
the following methods to judge whether the electrolyte is failure or not: If the
electrolyte in the electrolytic process release a lot of bubbles or reagent
contaminate into reddish brown, the reproducibility of the test results at this
time will be reduced, but also to reach the end of time longer, this situation
should replace reagents as soon as possible; according to the depicted
electrolytic speed curve to judge whether the electrolyte is failure or not. (See
Figure 6-8)
Reagents good
Reagents failure
5. Measuring results menu
The instrument in the electrolysis process detecting the stop signal of the
measuring electrode, stop measuring. If set to gas or liquid sample
measurement, calculation of moisture content immediately, generate result
report sheet. LCD display as shown in Figure 6-9
