Hello, I have a problem with the stability of my cooling water flow at our ICP MS 7800.

When I start the run the water flow drops from 1.03l/min slowly to under the acceptable minimun flow. If I start the run again the water flow is back to about 1l/min and then drops again. The water supply is fine, we use it for our OES too and there are no fluctuations.

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0 edgarvs over 1 year ago

Hi Isabella,

Do you use a recirculating chiller? if yes, what's the pressure. it should be between 30 to max 50 psi.

If the pressure is to low then the flow is also lower. it could be adjust by an technical person by adjusting the pressure regulator in the chiller.

if the pressure is way to high then the flow reading go wrong due to flow pressing through the internal water by-pass.

Best is to contact your local Agilent department for more detailed advice.

Cheers,

Edgar
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0 edgarvs over 1 year ago

Hi Isabella,

Do you use a recirculating chiller? if yes, what's the pressure. it should be between 30 to max 50 psi.

If the pressure is to low then the flow is also lower. it could be adjust by an technical person by adjusting the pressure regulator in the chiller.

if the pressure is way to high then the flow reading go wrong due to flow pressing through the internal water by-pass.

Best is to contact your local Agilent department for more detailed advice.

Cheers,

Edgar
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