Siemens SITRANS F TRANSMAG 2, Руководство по эксплуатации, Страница: 96 / 126

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: m
3
/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 out‐
put 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...3m/s Depending on the nominal
width (according to 0.25 ...
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 ...
+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 ...
+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
Parameters
TRANSMAG 2 with MAG 911/E
96
Operating Instructions, 03/2021, A5E00102775-AC