Calculating The Totalizer Count Rate Manually - ABB ControlMaster CM15 User Manual

ControlMaster CM15
Universal process indicator

7.5.1 Calculating the Totalizer Count Rate Manually

Analog Mode
Eng Hi (of source) x volume unit conversion
Count Rate =
Example:
Eng Hi = 2500 l/m. Totalizer required to increment in m
Volume unit conversion: 1 l = 0.001 m
Source time units = minutes, count rate units = seconds.
Time unit conversion: 1 min = 60 s.
2500 x 0.001
Count Rate =
If the input source is at a fixed rate of 2500 l/min, the totalizer increments at 0.04167 m
If the input source is reduced to a fixed rate of 1250 l/min, the totalizer increments at:
1250
x 0.04167 = 0.0208 m
2500
IM/CM/I–EN Rev. D
1
/ DIN
8
time unit conversion
3
.
= 0.04167 m
60
3
.
3
.
3
/s
7 Advanced Level
3
/s.
45