Parameters
SITRANS F M TRANSMAG 2
82
Operating Instructions, 11/2009, A5E00102775-07
Measuring functions
Table A- 3
Function group Measuring functions parameters
3.1
Flow
3.1.1
Engr. Unit
Engineering unit for volume flow or mass
flow
Note:
When you select a unit of mass flow (see
right column), you must enter the actual
medium density (menu 3.1.4).
DN 2 ... 12: l/h
DN >12: m3/h
•
m
3
/s, m
3
/min, m
3
/h,
m
3
/d
•
l/s, l/min, l/h
•
hl/s, hl/min, hl/h
•
Ml/d
•
ft
3
/s, ft
3
/min, ft
3
/h, ft
3
/d
•
gal/s, gal/min, gal/h,
gal/d
•
Mgal/d
•
ImpGal/s, ImpGal/min,
ImpGal/h, ImpGal/d
•
g/s, g/min
•
kg/s, kg/min, kg/h, kg/d
•
t/min, t/h, t/d
•
lb/s, lb/min, lb/h, lb/d,
•
STon/min, STon/h,
STon/d
•
LTon/d
3.1.2
Flow URV
Upper range value (URV) At the analog
output the amount of the measured value
in the range 0 up to URV is displayed
linear to the current range 4 to 20mA, at
the digital output 1 to the frequency range
0 to end frequency
Depending on
the nominal
width according
to 2...3 m/s
Depending on the nominal
width (according to 0.25 to
12 m/s)
3.1.3
Limits
Absolute values in flow units from menu
3.1.1
3.1.3.1
Lo Alarm Limit
Lower alarm limit
(the lower alarm limit must be smaller
than the upper alarm limit)
10% of the URV
(depending on
the nominal
width according
to 0.2 ... 0.3
m/s)
Depending on the nominal
width (according to -13 m/s
... +13 m/s)
3.1.3.2
Hi Alarm Limit
Upper alarm limit
(the upper alarm limit must be greater
than the lower alarm limit)
90% of the URV
(depending on
the nominal
width according
to 1.8 ... 2.7
m/s)
Depending on the nominal
width (according to -13 m/s
... +13 m/s)
3.1.3.3
Hysteresis
Hysteresis for limit values in % of full
scale value
1 %
0 to 20 %
3.1.4
Density
Engr. Unit
Density
Density of the medium
Engineering unit of the medium density
Density value for calculation of mass flow
kg/m
3
+1000.00 kg/m
3
•
g/cm
3
, kg/m
3
, lb/gal,
kg/l, g/l, lb/in
3
, lb/lmpgal
•
200 ... 5000 kg/m
3
3.1.5
Direction