KROHNE OPTISENS PH 9500 - Manual (Page 12)

3
INSTALLATION
12
OPTISENS PH 9500
www.krohne.com 08/2012 - 4001929601 MA OPTISENS PH 9500 R01 en
Storing the sensor in the provided plastic tube
• Screw the sealing cap off the plastic tube. Keep it in the original packaging.
• If there is not enough KCl solution in the plastic tube, fill it up with 3 molar KCl solution.
• Insert the sensor tip through the hole in the storage cap (see drawing on page 13).
• Carefully push the O-ring delivered with the storage cap on the sensor so that the cap sits over
the O-ring.
• Insert the sensor tip into the plastic tube until it is fully covered with KCl solution.
• Tighten the cap.
• Store the sensor in its original packaging.
3.3 Installation procedure
Because a new pH sensor needs to be calibrated before it is installed into its final measuring
location, it is important to follow the installation order:
1. Unpack the sensor.
2. Connect the sensor to the signal converter.
3. Calibrate the sensor.
4. Install the sensor into its final measuring location.
The required steps are explained in the following sections.
Figure 3-1: pH sensor in its original packaging
1 Padding
2 Plastic tube filled with 3 molar KCl solution
3 pH sensor
4 O-ring
5 Washer
6 Protective cap over electrical connector
7 Sealing cap without hole to seal plastic tube 2 when sensor is in use