Fluid Components International CMB - Manual (Page 82)

13.10.1 Current output I1 0/4 to 20 mA
The Current output I1 0/4 to 20 mA function allows the operator to define the range in which the current
output is to be operated. Within the range from 0 to 21.6 mA (= 0 ... 110 %) HART communication
® is not
possible. The range from 4 to 20.5 mA follows the NAMUR recommendation and covers the range from 0
to 104 % of the measuring range. The standard range from 4 to 21.6 mA allows for a control of the meas-
uring range of up to 110 %.
Press
↵ to display the current setting.
Current output I1
[4] – 21.6 mA
As mentioned in Section 12.4.3.1 Selection window/make a selection, the operator can choose between
the following settings:
Current output
0,00 mA
5,00 mA
10,00 mA
15,00 mA
20,00 mA
25,00 mA
0% 20% 40% 60% 80% 100% 120%
Measured value
Out
put
c
u
rre
nt
0 - 20 (21,6) mA 4 - 20,5 mA
NAMUR 4 - 21,6 mA
Standard
13.10.2 Current output I1 alarm
This function allows the operator to define the state taken on by the current output when a state of alarm
is detected. This information can be analyzed in the control system. Press
↵ to display the current setting:
I1 : alarm
[>22mA]
As mentioned in Section 12.4.3.1 Selection window/make a selection, the operator can choose between
the following settings:
¾ not used no alarm function
¾ > 22 mA current rise in the case of an alarm
¾ < 3.8 mA current reduction in the case of an alarm
13.10.3 Current output I1 assignment
Page 82 of 106
CMB & CT OPERATING MANUAL