Fluid Components Intl ST51A - HART Engineering Units Codes; Table 18 - HART Engineering Units Codes

ST51A/ST75A/ST75AV Mass Flow Meters OPERATION
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HART Engineering Units Codes
Table 18 below summarizes the HART codes used to represent the instrument’s engineering units.
Table 18 – HART Engineering Units Codes
Units Type
HART Code
Unit Description
Temperature
32
degrees Celsius
33
degrees Fahrenheit
Volumetric Flow
123
Standard Cubic Feet per Minute (SCFM)
185
Standard Cubic Feet per Hour (SCFH)
182
Normal Cubic Meters per Minute (NCMM)
121
Normal Cubic Meters per Hour (NCMH)
175
Liter per Minute (LPH)
16
Gallon per Minute (GPM)
Mass Flow
82
Pounds per Hour (LB/H)
75
Kilograms per Hour (KG/H)
Velocity Flow
20
Standard Feet per Second (SFPS)
21
Standard Meters per Second (SMPS)
Totalizer
168
Standard Cubic Feet (SCF)
166
Normal Cubic Meters (NCM)
41
liters
63
pounds
61
kilograms
40
gallons
Plenum
47
inches
49
millimeters