Description of device functions Proline Prowirl 73
104 Endress+Hauser
UNIT HEAT FLOW Description
For selecting the unit required and displayed for the heat flow.
The unit you select here is also valid for:
• Flow display
• Current output (value 20 mA)
• Frequency output (pulse value; value-f low, value-f high; on-value/off-value)
• On-value low flow cut off
• Simulation measurand
The following time units can be selected:
s = second, m = minute, h = hour, d = day
Options
SI:
kW
MW
kJ/time unit
MJ/time unit
GJ/time unit
kcal/time unit
Mcal/time unit
Gcal/time unit
US:
tons
kBtu/time unit
MBtu/time unit
GBtu/time unit
Factory setting
See the parameter printout provided. The parameter printout is an integral part of these
Operating Instructions.
UNIT DENSITY Description
For selecting the unit required and displayed for the density.
Options
SI:
g/cm³
g/cc
kg/dm³
kg/l
kg/m³
SD* 4 °C, SD 15 °C, SD 20 °C
SG* 4 °C, SG 15 °C, SG 20 °C
US:
lb/ft³
lb/US gal
lb/US bbl NORM (normal fluids)
lb/US bbl BEER (beer)
lb/US bbl PETR. (petrochemicals)
lb/US bbl TANK (filling tanks)
IMPERIAL:
lb/imp. gal
lb/imp. bbl BEER (beer)
lb/imp. bbl PETR. (petrochemicals)
Factory setting
Depends on country ä 180
* SD = specific density, SG = specific gravity
The specific density is the ratio of fluid density to water density (at water temperature
= 4, 15, 20 °C).
Function description, SYSTEM UNITS group
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