DL7, DL7L
49
13 SETTINGS OF CALCULATION CHANNELS
In order to set the calculation channel, choose from the side menu the button
, and then the channels icon
. In the input tab, set the channel type:
computed and enter the formula which the value will be calculated.
The device allows to perform selected mathematical operations: addition, subtraction,
division, multiplication, raising to the power of 2 and 3 and the square root. The formula
entered can contain up to 200 characters.
The value of another channel may be used in calculation. In this case, the channel
number should be preceded by # sign.
For example:
formula
#1+#2
adds the values of the first and second channels.
In calculation of square root, the value is calculated of only first character after the
√ mark. If the square root has to be calculated from the value of several channels,
calculated value should be placed in brackets.
For example:
formula
√
123
calculates the square root of 123,
formula
√
#1
calculates the square root of the value of channel 1,
formula
√
#1+#2
calculates the square root of channel 1 and to the
result adds the value of channel 2
formula
√
(#1+#2)
calculates the square root of the sum of values
channels 1 and 2.
Similarly, in the case of exponentiation (the possibility of choosing the second and the
third power), the value is calculated of only the first character entered before the
2
or
3
mark. If the value from several channels is raised to power 2 or 3, the calculated value
should be put in brackets.
For example:
formula
123
2
raises the value of 123 to power 2,
formula
#1
2
raises the value of channel 1 to the power of 2,
formula
#1+#2
2
raises the value of channel 2 to the power of 2 and to
the result adds the value of channel 1,
formula
(#1+#2)
2
raises to the power of 2 the value from the sum of
values of channels 1 and 2.
!
The device performs calculations according to the order of operations
(operations in brackets, exponentiation / extraction of a root, division /
multiplication, addition / subtraction).