ABB Sensyflow FMT700-P, Operating Instruction

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Communication
32 Sensyflow FMT700-P 42/14-42-EN
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6.1.2.2 Specifications for the special "Totalizer" mode
All signal lines of the digital inputs and outputs are optically decoupled.
Important (Notice)
The outputs are connected as OPEN COLLECTORS (see section 3.3).
Permissible measurement period T
M
10 s ≤ T
M
≤ 115 s
Error due to measurement interval 0.05 % with T
M
= 100 s
0.15% with T
M
= 10 s
Measurement uncertainty when determining air
mass ± 2 %
Auxiliary voltage required (UEXTERNAL) 5 ... 24 V DC (I = 20 mA at 20 V)
Totalized measured value M
M ≤ 32,767 g ((2
15
... 1) g)
The max. permissible measurement period depends on the mass flowrate.
Measurement
period [s]
G00945
120
110
100
90
80
70
60
50
40
30
20
10
1000
2000 3000 4000
Flowrate [kg/h]
Fig. 22: Measuring range of totalizer
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