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CP6632
Measurement mode provides for display of the Minimum (bottom left), Mean
(bottom centre) and Maximum (bottom right) values since the last Min/Max
Reset command.
•
This command is accessed through key F2.
•
Using the navigation key, go onto the Min/Max Reset field
•
Press VAL to confirm.
C.1.3 Current measurement / auxiliary functions
Auxiliary functions can be defined for all the ranges. Examples include:
•
Supply of a +24 voltage to the sensors or not
mode
•
Linear or quadratic scale (for process ranges only).
•
Hart compatibility (for process ranges only).
After selecting the Function and Range, the auxiliary functions described
above must be defined.
passive or active mode?
•
Using key F1, go onto the Loop Supply field.
•
Using the navigation keys (
(Passive or Active).
This active or passive mode also concerns the Hart mode.
Scale?
•
Using key F1, go onto the Scale field.
•
Using the navigation keys (
mode.
When quadratic scaling is activated, the CP6632 takes the square root of its
input and displays the result as a percentage. For example, if the CP6632 is
connected to the output of a differential pressure transmitter it displays a
result proportional to the flow.
If the input current x varies between a and b, scaling complies with the
formula below:
The scaling curve for the 0-20mA range is as follows:
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P
ROGRAMMING THE MODES
↑ ↑ ↑ ↑
and
↑ ↑ ↑ ↑
and
(
=
+
−
y
a
b
a
Passive or active
↓ ↓ ↓ ↓
), select the mode ON or OFF
↓ ↓ ↓ ↓
), select Linear or Quadratic
) (
)
−
x
a
(
)
−
b
a
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