Measuring Functions - Siemens SITRANS F M TRANSMAG 2 Operating Instructions Manual

Parameters

Measuring functions

Table A- 3 Function group Measuring functions parameters
3.1 Flow
3.1.1 Engr. Unit
3.1.2 Flow URV
3.1.3 Limits
3.1.3.1 Lo Alarm Limit
3.1.3.2 Hi Alarm Limit
3.1.3.3 Hysteresis
3.1.4 Density
Engr. Unit
Density
3.1.5 Direction
82
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).
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
Absolute values in flow units from menu
3.1.1
Lower alarm limit
(the lower alarm limit must be smaller
than the upper alarm limit)
Upper alarm limit
(the upper alarm limit must be greater
than the lower alarm limit)
Hysteresis for limit values in % of full
scale value
Density of the medium
Engineering unit of the medium density
Density value for calculation of mass flow
m
DN 2 ... 12: l/h
• 3
m
3
DN >12: m3/h
l/s, l/min, l/h
•
hl/s, hl/min, hl/h
•
Ml/d
•
ft /s, ft
3
•
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
•
Depending on Depending on the nominal
the nominal width (according to 0.25 to
width according 12 m/s)
to 2...3 m/s
10% of the URV Depending on the nominal
(depending on width (according to -13 m/s
the nominal ... +13 m/s)
width according
to 0.2 ... 0.3
m/s)
90% of the URV Depending on the nominal
(depending on width (according to -13 m/s
the nominal ... +13 m/s)
width according
to 1.8 ... 2.7
m/s)
1 % 0 to 20 %
g/cm
kg/m
•
3
kg/l, g/l, lb/in
+1000.00 kg/m
3
200 ... 5000 kg/m
•
SITRANS F M TRANSMAG 2
Operating Instructions, 11/2009, A5E00102775-07
/s, m /min, m /h,
3 3
/d
/min, ft /h, ft /d
3 3 3
, kg/m , lb/gal,
3 3
, lb/lmpgal
3
3