AFA sarl : Tous Echantillonneurs manuels de liquides / A complete range of manual sampling devices for liquids 
 

 

 
MEASUREMENT OF LIQUID LEVELS  
 
Ullage bar.
Water finders.
Oil finders.
 
 
 

MEASURING TAPES: 
More picture
 
Earthed steel tape with brass weight.
For measuring ullage in tanks, in particular in the oil industry.

Certified EC Class II.

    10 m black-engraved or yellow-lacquered tape. 

    20 m black-engraved or yellow-lacquered tape. 

    30 m black-engraved or yellow-lacquered tape.

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Precision class

LENGTH IN METRES

& TOLERANCES

 

 

10

20

30

I

+/- 1.10mm
+/- 2.10mm
+/- 3.10mm

II

+/- 2.30mm
+/- 4.30mm
+/- 6.30mm

III

+/- 4.60mm
+/- 8.60mm
+/- 12.60mm


ULLAGE GAUGES: 
Ullage gauges.
For measuring the height between the surface of the liquid and the neck of the tank.

For each type of tank the volume of liquid corresponding to the measured value is given in a specific table.

Duralumin or AU 4G gauge 

Black anodised ASG backing

Graduated in mm ; 0 at top

Scale numbers in cm.

Certified EC Class II.

    Available in various heights : 0,50 m ; 0,60 m ; 1,00 m ; 1,50 m ; 2,00 m ; 2,50 m ; 3,00 m.

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RULERS: 
Rulers for measuring liquid height.
Device for measuring the liquid column height in a tank.

For each type of tank the volume of liquid corresponding to the measured value is given in a specific table.

Duralumin or AU 4G ruler 

Black anodised ASG backing

Graduated in mm ; 0 at bottom

Scale numbers in cm.

Certified EC Class II.

    Available in various cross-sections and heights: 
      Backing cross-section 15 x 25 x 15 : L : 1,00 m ; 1,50 m ; 2,00 m ; 2,50 m ; 3,00 m ; 3,50 m

      Backing cross-section 20 x 40 x 20 : L : 3,00 m ; 3,50 m ; 4,00 m ; 4,50 m ; 5,00 m.

 

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LIQUID LEVEL MEASUREMENT ACCESSORIES: 
Ullage bar: 
An essential tool for obtaining highly accurate ullage measurements (with the measuring tape). 
The bar is attached to the measuring tape (without damaging it) at the desired height. The tape and its weight are lowered into the tank to be measured and the bar is placed over the ullage opening. The ullage corresponds to the length of tape between the plate and the point where the product wets the tape. 
Liquid-finder pastes are used to determine the exact point where the product touches the tape.
Oil finders: 
This type of paste is applied to the measuring tape or ullage gauge and changes colour upon contact with the product, allowing precise determination of the surface of the product being measured. 

 

 

Water finders: 
This type of paste is applied to the measuring tape or ullage gauge and changes colour upon contact with water allowing precise determination of the product/water interface.
 
 
 

 

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