Hach-Lange NISE sc - Manual (Page 32)

32
Maintenance
Figure 14 Chloride electrode
5.3 Replace the sensor cartridge
The sensor cartridge is replaced as described below and in Figure 15, Page 33 .
N O T I C E
1. Replace the cartridge using menu item
AN-ISE SC or AISE SC or NISE SC > DIAG/TEST > SERVICE > CHANGE CARTR. .
2. Clean the probe and thoroughly dry the sensor cartridge and probe adapter.
3. Loosen the 4 socket head screws.
.
4. Pull the sensor cartridge out of the probe adapter and discard the old sensor cartridge
as per the applicable regulations.
5. Make sure that a new black gasket is installed every time the sensor cartridge is
replaced. Before the gasket is installed, clean the surface that faces the cartridge and
the groove for the gasket.
6. Insert the new sensor cartridge into the probe adapter. Observe the marker hole on
the sensor cartridge flange and the probe adapter.
7. Secure the sensor cartridge with the 4 socket head screws.
8. The sensor code (calibration data) is automatically read for instruments with automatic
recognition (LXG440.99.x000x). For instruments with non-automatic recognition
(LXG440.99.x001x), enter the new sensor code manually (refer to certificate).
The sensor cartridge must point downward such that no water can run into the probe adapter. Pay
attention to the contacts between the probe and the sensor cartridge. These contacts must remain
dry.