Specification; Operating Conditions; Maintenance Schedule - Hach FL1500 Basis-Benutzerhandbuch

Maintenance
Multiple hazards. Only qualified personnel must conduct the tasks described in this section of the
document.

Maintenance schedule

Table 8 shows the recommended schedule of maintenance tasks. Facility requirements and
operating conditions may increase the frequency of some tasks.
Task
Clean the instrument on page 26
Replace the fuses on page 26
Replace the internal desiccant
Replace the external desiccant cartridge (if applicable). Refer to
Tote sensors on page 18
Clean the instrument
Never use cleaning agents such as turpentine, acetone or similar products to clean the instrument including the
display and accessories.
Clean the exterior of the instrument with a moist cloth and a mild soap solution.
Replace the fuses
Electrocution hazard. Remove all power from the instrument and relay connections before this
maintenance task is started.
Fire hazard. Use the same type and current rating to replace fuses.
The instrument contains fuses for the power and for the relays. Refer to
blown fuse can be an indication that the instrument has a problem and that service is necessary.
1. Remove the power to the instrument.
2. Remove the power to the relay connections.
3. Open the access door. Refer to
4. Remove the high-voltage barrier.
5. Replace the fuse with a fuse of the same type and rating. Refer to
parts and accessories
6. Install the high-voltage barrier.
7. Install the access door.
26 English
D A N G E R
Table 8 Maintenance schedule
on page 27.
N O T I C E
D A N G E R
D A N G E R
Open the access door
on page 29.
Installation for Flo-Dar or Flo-
Specifications
on page 11.
Figure 12
As necessary
X
X
X
X
on page 3. A
and Replacement