Replace The Desiccant - Hach Flo-Tote 3 Manual Básico Del Usuario

Maintenance
Multiple hazards. Only qualified personnel must conduct the tasks described in this section of the
document.
Do not disassemble the instrument for maintenance. If the internal components must be cleaned or repaired,
contact the manufacturer.
Clean the sensor electrodes
Do not use sandpaper to clean the sensor electrodes. Sandpaper can damage the electrodes.
Refer to Troubleshooting
1. Put a small amount of liquid detergent cleaner on a soft bristle brush.
2. Clean the sensor electrodes with the soft bristle brush. Refer to
electrodes.
3. Rinse the sensor electrodes with clean water.

Replace the desiccant

Do not operate the sensor without desiccant beads or with green desiccant beads. Permanent damage to the
sensor can occur.
Immediately replace the desiccant when it changes to green. Refer to
Note: It is not necessary to remove the desiccant container from the desiccant hub to install new desiccant.
At step 5 of Figure 9, make sure that the O-ring is clean and has no dirt or debris. Examine the O-
ring for cracking, pits or sign of damage. Replace the O-ring if it has damage. Apply grease to dry or
new O-rings to make installation easier, to get a better seal and to increase the life of the O-ring.
For the best performance, make sure to install the desiccant container vertically with the end cap
pointed down. Refer to
Note: When the beads just begin to turn green, it may be possible to rejuvenate them by heating. Remove the
beads from the canister and heat them at 100-180 ºC (212-350 ºF) until they turn orange. Do not heat the canister.
If the beads do not turn orange, they must be replaced with new desiccant.
C A U T I O N
N O T I C E
N O T I C E
on page 16 for when to clean the sensor electrodes.
N O T I C E
Attach the desiccant hub (FL900)
Figure 3 on page 7 to identify the
Figure 9.
on page 11.
English 13