Xylem WTW SenTix 950, Руководство по эксплуатации

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General information SenTix
®
950 / 980 / Micro 900(-P)
6
ba75843e04 06/2017
 Calibrate the electrode according to the operating manual of the meter
and observe the following rules while doing so:
2.3 Calibration and measurement: General rules
 Make sure the refilling opening for the reference electrolyte solution is
open.
 Avoid the carryover of any solution (sample or buffer solution) from one
measurement to the next by taking the following measures:
– Shortly rinse the calibration and sample beakers with the solution the
beakers are to be filled with next.
– Between measurements, rinse the electrode with the solution that fol-
lows. Alternatively, you can also rinse the electrode with deionized
water and then carefully dab it dry.
 Immerse the electrode in the solution in a vertical or slightly tilted position.
Make sure the immersion depth is correct. The junction must be com-
pletely submersed in the solution. The junction is in the area of the bottom
end of the shaft (see figure). At the same time, the level of the reference
electrolyte in the electrode must be at least 2 cm above the level of the
solution.
 Provide approximately the same stirring conditions for measuring as for
calibrating.
Accessories for the connection of the
SenTix
®
980-P sensor to the meter: See
chapter 7 W
EAR PARTS AND ACCESSORIES
.
Opening and closing the IDS plug connection,
see section 2.1 O
PENING AND CLOSING THE
IDS
PLUG CONNECTION
.
Prevent contact of the pH membrane to the beaker bottom to
avoid scratches on the pH membrane.
J unction
Reference e l ectro ly te
(Ex a m p l e )
G l ass m e mb rane
Sh aft