Filter Pad Maintenance; Filter Pad Replacement - Hach DR 5000 User Manual

7.4 Filter pad maintenance

7.4.1 Filter pad replacement

3. Pull out the plastic base over the power cable socket.
4. Remove the defective fuse, see
5. Insert new fuse (T 2 A H; 250 V)
6. Replace the plastic base.
7. Plug in the power cord.
8. Switch the instrument on.
To determine when the filter mat needs to be replaced, inspect the
filter mat every 3–6 months (in a relatively dust-free environment,
this interval can be longer).
1. Remove any cuvettes and cuvette/sample cell adapter from the
cell compartment.
2. Turn the instrument off.
3. Unplug the power cord.
4. Lift the instrument and check the color of the filter mat. Replace
the filter mat if is dark gray or black.
5. Carefully turn the instrument over and place it on a soft surface.
6. Use a screwdriver (standard or cross-head) to open the
filter grid (Figure 9 on page
7. Lift the filter grid (Figure 10 on page
8. Remove the old air filter pad and replace it with a new air filter
pad (Figure 10, item 2).
9. Screw the grid back in place.
10. Carefully stand the instrument upright.
11. Plug the instrument in.
Maintenance
Figure 1 on page 14.
126, item 1).
126, item 1).
125