Technical data
Proline Promass 83
134
Hauser
Special mounting instructions
19.
Limiting flow
See the "Measuring range" section
Select nominal diameter by optimizing between required flow range and permissible
pressure loss. See the "Measuring range" section for a list of max. possible full scale values.
• The minimum recommended full scale value is approx. 1/20 of the max. full scale value.
• In most applications, 20 to 50% of the maximum full scale value can be considered ideal.
• Select a lower full scale value for abrasive substances such as liquids with entrained solids
(flow velocity < 1 m/s (3 ft/s)).
• For gas measurement the following rules apply:
– Flow velocity in the measuring tubes should not be more than half the sonic velocity
(0.5 Mach).
– The maximum mass flow depends on the density of the gas: formula
Pressure loss
To calculate the pressure loss, use the
Applicator
sizing tool (
85).
Summary of Contents for HART Proline Promass 83
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