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GAGE FLUIDS

Questions

Question

We are using a Durablock inclined manometer with a range of 0-0.25" of water. What is considered a normal response time to steady state? We are seeing times of 1 minute whereas the manual states 'a few seconds'. Gage fluid is well beyond the recommended three years. Do I need fresh (i.e. new) gage fluid? My supply is as old as what's in the manometer.

Answer

The manometers have a response time that is dependent on the length of tubing, so a response time of a minute is not uncommon. You may want to check your fittings to make sure there is not a clog present. The gage fluid has a lifespan of three years before the inherent properties start to change, so it is suggested to replace it. A one ounce bottle of fluid is p/n A-101.

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Series 250-AF

Gage Fluids

Question

Model 1212. How much fluid mixture is required? What is the best method to fill this unit?

Answer

A 1 oz bottle of A-126 Fluorescein green color concentrate is added to a quart of distilled water. Remove a tubing connector from the manometer and pour the mixture in to mid-point level. Shake the manometer to remove air bubbles and slide the scale so the zero mark is in line with the meniscus of the two fluid columns.

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Gage Fluids

Series 1211/1212

Series 1221/1222/1223

Question

can you dilute the red dye for the manometer with distilled water?

Answer

The red gage fluid has a specific gravity of .826. If you dilute it with distilled water you will change the specific gravity and it will not work in instruments that require the red gage fluid.

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Gage Fluids