Endress+Hauser CA76NA, Руководство по эксплуатации

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Maintenance CA76NA
56 Hauser
5. NOTICE
Incorrect electrode installation, removal and connection
Risk of damaging the electrodes and measuring cables
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Exercise care when inserting the electrodes into, and removing the electrodes
from, the chambers of the flow through cell.
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Do not touch against the glass bulbs of the electrodes.
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Avoid air bubbles in the glass bulbs. If air bubbles are present, hold the electrode
in a vertical position and shake it gently to remove the bubbles.
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Do not allow the glass bulbs of the electrodes to become dry. Fit protection caps
on the electrodes.
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Protect the cable connections and plugs against corrosion, moisture, dirt and dust.
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Do not bend the electrode cables
Carefully insert the electrodes as far as they will go into the left-hand chamber
(sodium) or right-hand chamber (pH).
6. Tighten the electrode coupling finger-tight.
11.2.7 Measuring the laboratory sample
The measurement of a laboratory sample makes it is possible to:
• Check manual samples from other measuring points for sodium ions
• Check the accuracy of the analyzer using self-produced or purchased standards
Only use standards whose concentration is in the specified analyzer measuring range.
The analysis process is similar to a channel analysis. The difference is that the sample is
conveyed by a separate pump, and not the static pressure. The result of the analysis is
shown on the measured value screen. The measurement result is not output by a current
signal. The result is recorded in the logbook where it can also be called up.
A0049211
 14 Lab sample bottle
1. Deactivate the AUTOMATIC operating mode.
2. The 1-liter (33.81 fl.oz) lab sample bottle that is supplied is rinsed.
Fill the bottle with the sample to be measured.