Honeywell STR12D User Manual

Page 16

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34-ST-03-64

Page 16

Density or Interface*

Calculate the minimum and

maximum pressure differentials to

be measured.

Pmin = (SGmin - SGf) x (d);

minimum density, 4mA
output

Pmax = (SGmax - SGf) x (d);

maximum density, 20mA
output


Where:

d = distance between the

taps

SGmax = maximum Specific

Gravity

SGmin = minimum Specific

Gravity

SGf = Specific Gravity of

capillary fill fluid (see

page 11 for values)



LP

HP

24257

Figure 19—Density, direct acting instrument configuration.


* Contact STC-Phoenix concerning

applications for model STR13D.

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