SIGRIST AquaScat SG, Инструкция по эксплуатации, Страница: 89 / 120

Servicing Instruction Manual ScrubberGuard
14830E/1 89
9.3.2 Cleaning and calibrating the pH sensor
CAUTION!
The pH sensor can be damaged though improper handling.
The pH sensor can be damaged by touching the measuring tip carelessly or by using incor-
rect cleaning agents.

See Section 9.3.1 for details on how to clean this sensor.

Only touch the measuring tip of the pH sensor when absolutely necessary.

Do not clean the sensor with abrasive cleaning agents.

Only use the recommended cleaning agents.
WORKSTEP ADDITIONAL INFO / IMAGES
1. 1. Press the Menu button.
2. Set the access code and confirm with OK .
3. Press the button with (S2) Name of the
pH sensor .
4. Select the Recalibration menu.
5. Select the C1 pH menu.
Factory setting is 0 .
2. Remove the pH sensor according to Section
4.3.1 and position it in the slide holder
(Figure 29).
3. Clean the measuring tip of the sensor as fol-
lows:
1. Immerse the measuring tip of the sensor in
cleaning solution or dab it with a soaked
cloth.
2. Rinse off the measuring tip with distilled
water and pat dry.
Use cleaning agents according to
Section 9.3.1.3.
4. Prepare for recalibration as follows:
1. Open the calibration container and fill
with buffer solution by applying pressure
to the container.
Calibration solutions from various
manufacturers can be used. These can
be selected in the
Recalibration/Cali.
standard menu. The Hamilton stan-
dards are set as default.
2. Move the slide holder downwards as far as
necessary until the tip of the pH sensor is
fully immersed in the calibration solution.
The sensor should be positioned in
the center of the calibration vessel and
must not rest against the bottom of the
vessel.