TESTO 325M - Troubleshooting (Continued); Defects During Measurement; Defects During Switch-Off

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9. Troubleshooting
Defects when measuring
Defect Possible causes Remedy
flashes and Flue gas temperature Connect flue gas temperature probe
---- probe is not or is or check connection
appears incorrectly connected
-or-
Thermocouple in flue Change thermocouple
gas temperature probe (See 8.6 Changing thermocouple, P. 25)
defective
---- is shown Probe not/incorrectly Connect probe or check connection or change filter
in place of connected
reading or defective
0
2
flashes and ---- O
2
measuring cell defect Change O
2
measuring cell
appears (See 8.8 Changing measuring cells, P. 26)
C0 flashes and ---- C0 / CO/H
2
measuring Change C0/ CO/H
2
measuring cell
appears cell defective (See 8.8 Changing measuring cells, P. 26)
Pump stops and CO value is above the Expose probe to fresh air and start pump via ,
CO flashes switch-off limit to purge the measuring cells.
Caution! Meas. cell can be destroyed if CO value is too high!
Analyser switches Rechargeable batteries/ Change rechargeable batteries/batteries (See Chapter 8.6,
itself off batteries spent P. 23) or connect mains unit (accessory)
Defects when switching off:
Defect Possible causes Remedy
CO and / or CO value too high and / Expose probe to fresh air and wait for rinse to end.
O
2
flash or O
2
value too low If not successful: O
2
or C0/ CO/H
2
measuring cell is
defective and has to be changed (See Chapter 8.8 Changing
measuring cells, P. 26)