Hach-Lange NH4D sc Ammonium Sensor - Manual (Page 13)

13
Installation
3.3 Sensor assembly
Important Note: Avoid touching the membranes on the sensor
cartridge or damage to the sensor may occur.
1. Remove the black gasket.
2. Ensure that the opaque gasket is in place in the sensor
adapter. The opaque gasket will be between the sensor and the
sensor cartridge. A spare opaque gasket is inside the box that
contains the sensor cartridge. Replace the opaque gasket
every time the sensor cartridge is replaced.
Important Note: Without the opaque gasket, damage of the sensor
will occur.
3. Align the markings on the sensor cartridge with the sensor
adapter (see
Figure 8 on page 14 ) and connect the sensor
cartridge into the sensor adapter.
4. Attach the locking ring over the sensor head and hand-tighten.
Note: Use the cap of the storage container as a tool/screwing aid for
the locking ring (
Figure 9 on page 15 ).
Figure 6 Storage container for sensor cartridge 1
1 Storage container 3 Sensor cartridge
2 Black gasket (remove before installation) 4 Cap
1 Save items 1, 2 and 4 for sensor storage.