Teledyne 465M instruction manual Replacing Internal Particulate Filter

9.3.Replacing Internal Particulate Filter

1.Disconnect power from the M465M.

2.Loosen the six screws from the top cover (Rack Mount Configuration, see Figure 9-1)or open front panel (NEMA Configuration, see Figure 9-2.)

3.Remove the six screws and top cover from the instrument.

4.Locate the particulate housing filter on the rear panel (Rack Mount Configuration, see Figure 9-1)or the bottom panel (NEMA Configuration, see Figure 9-2.)

5.Loosen the four screws on the sample filter body (see Figure 9-3.)

6.Remove the fours screws, the four washers and the sample filter body from the sample filter base.

7.Remove the o-ring and inspect for any cracks or deformities. If there are no cracks or deformities, place the o-ring back in the sample filter body.

NOTE

If the o-ring is cracked or deformed, discard the o-ring and replace with a new one.

8.Remove the two sample filter retainers and glass fiber filter element from the sample filter body.

9.Discard the glass fiber filter element.

10.Place a new glass fiber filter element in between the two sample filter retainers and place in the sample filter body.

11.Place the sample filter body on the sample body base and secure with the four screws and fours washers.

12.Reinstall the top cover on the instrument and secure with the six screws or close the front panel.

P/N 06160D DCN6409 Teledyne API Model 465M O3 Monitor Instruction Manual - Page 54