Pressure gauge scale ranges to EN 837

In addition to scales appropriate to EN 837, there are also other conventional scale ranges, double and multi-quadrants as well as color scales. These conditions are determined according to the European norms EN 837-1 and EN 837-3.

Nominal sizes (Dial Diameter and Sizes):

The nominal dimensions (NS) of the markers are as follows: 40, 50, 63, 80, 100, 160 and 250

Accurancy Class (Cl):

The accuracy class that specifies the allowed error limits is expressed as a percentage of the Scale (Maximum Value, Scale, Span).

Accuracy classes: 0.1, 0.25, 0.6, 1, 1.6, 2.5, and 4.

The accuracy class, especially for pointer stops used in thermometers, covers from 10% to 100% of the scale range.

For zero-based indicators, the accuracy class covers from 0% to 100% of the scale range.



The preferred pressure unit is bar.

Pressure Ranges (bar)

0 ... 0.6 0 ... 6
0 ... 60 0 ... 600

0 ... 1
0 ... 10
0 ... 100 0 ... 1000

0 ... 1.6 0 ... 16
0 ... 160 0 ... 1600

0 ... 2.5 0 ... 25 0 ... 250

0 ... 100 0 ... 160 0 ... 250 0 ... 400 0 ... 600

0 ... 4
0 ... 40, 0 ... 400

Pressure Ranges (mbar)

-1 ... 0 -1.6 ... 0 -2.5 ... 0 -4 ... 0 -6 ... 0

-10 ... 0 -16 ... 0 -25 ... 0 -40 ... 0 -60 ... 0

-one thousand
-160 ... 0
-250 ... 0
-400 ... 0
-600 ... 0



ExampleTable: Accuracy class 1 den 4 up to

 



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