Veo Observer Plus Instruções de Operação descarregar pdf (Página 105)

Charged Aerosol Detectors

Corona Veo and Corona Veo RS

Operating Instructions Page 97

Error Code Error Message Description and Remedial Action

29004 High gas pressure The gas pressure has risen above 448 kPa (65 psig). This can be

caused by an incorrect gas pressure setting or a failing gas

regulator.

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).

• gas supply tubing is correctly installed at the rear of the

detector.

• gas filters are correctly installed.

The pressure relief valve will open if the gas supply pressure

exceeds 550 kPa (80 psig). The purpose of the valve is to protect

the detector from damage in the event that the gas supply pressure

exceeds the recommended range. If this occurs, adjust the gas

pressure within the specified range (480 kPa – 550 kPa (70 –

80 psig)). The gas pressure relief valve should immediately close

once the gas pressure is maintained in the range of 480 kPa –

550 kPa (70 – 80 psig).

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

pressure sensors. If the error persists, contact Service.

29002 Low flow ratio The gas flow ratio (charging gas to gas pressure) 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 an internal leak or possible

gas blockage due to internal liquid flooding within the detector.

Contact Service.

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