Veo Observer Plus Instruções de Operação descarregar pdf (Página 106)

Charged Aerosol Detectors

Corona Veo and Corona Veo RS

Page 98 Operating Instructions

Error Code Error Message Description and Remedial Action

29003 High flow ratio The gas flow ratio is outside of specification for more than 60

seconds.

The contact closure was sent to the Digital I/O terminal of the

detector. If a pump is connected to the Digital I/O, the pump flow

will be stopped. On the detector display, press any soft key to

continue.

Corona Veo RS only: The stream-switching valve will divert liquid

flow away from the nebulizer to prevent detector flooding.

Check that

• gas supply pressure is in the range of 480 kPa – 550 kPa

(70 – 80 psig) and that gas is still being delivered to the

detector.

• gas pressure reading on the detector display is the range of

379 kPa – 448 kPa (55 – 65 psig).

Turn the detector off and on and allow the self test to test the

pressure sensors.

If the error persists, then there may be a possible gas blockage

within the detector. Contact Service.

29009 Liquid sensor

fault detected

Liquid is present the mixing chamber of the detector (→ Fig. 29).

The contact closure was sent to the Digital I/O terminal of the

detector. If a pump is connected to the Digital I/O, the pump flow

will be stopped. On the detector display, press any soft key to

continue.

Corona Veo RS only: The stream-switching valve will divert liquid

flow away from the nebulizer to prevent detector flooding.

Turn the detector off and on and allow the self test to test the

pressure sensors.

In the Main Menu, set the gas pressure to On and attempt to dry

the liquid present inside the detector for 24 hours. If the error

persists, contact Service.

29000 Low ion trap

voltage

The ion trap voltage is too low. Liquid may be present in the ion

trap. The voltage may have been shorted due the detector flooding.

The contact closure was sent to the Digital I/O terminal of the

detector. If a pump is connected to the Digital I/O, the pump flow

will be stopped. On the detector display, press any soft key to

continue.

Corona Veo RS only: The stream-switching valve will divert liquid

flow away from the nebulizer to prevent detector flooding.

Turn the detector off and on and allow the self test to test the

pressure sensors.

In the Main Menu, set the gas pressure to On and attempt to dry

the liquid present inside the detector for 24 hours. If the error

persists, contact Service.

For more information about the internal safety features of the detector, see section 5.7

(→ page 70).

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