Troubleshooting; Replacing Damaged Parts; Replacing O-Rings And Seal Rings; Error Messages - TESTO 6448 Instruction Manual

Compressed air counter probe
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8

Troubleshooting

8.1.

Replacing damaged parts

Replace all other damaged parts immediately. Contact your sup-
plier for more details on ordering.
8.2.

Replacing O-rings and seal rings

Keep the sealing surfaces clean
Remove any encrusted residues from time to time
In the event of leakage, contact your supplier
8.3.

Error messages

These error messages are shown even when the display is
switched off.
Display
5
The affected output is switched off as long as the short-circuit lasts.
Damages to the compressed air counter that affect the
pressure integrity may only be remedied by authorised
personnel.
After each repair, the technical data of the specifications
must be checked by authorised personal, e.g. pressure
test.
Danger of the medium escaping!
Replacement of the seals may only be performed by
authorised personnel.
Explanation
Recording range exceeded
(Flow > 120 % of the final measuring range value)
Flashing: Short-circuit in switch output 1
Flashing: Short-circuit in switch output 2
Flashing: Short-circuit in both switch outputs
Flashing: Malfunction in probe
8 Troubleshooting
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