Fluke 1586A, Руководство пользователя

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1586A
Users Manual
3-28
Table 3-10. Math Channel Formulas (cont.)
Formula Equation Description
1 / A 1 / A
Calculates the reciprocal of a variable. The argument
cannot be 0 or the result will be "+OL".
A + B A + B
Adds the readings of two source channels. This is useful
to create expressions of more than one independent
variable.
A – B A – B
Calculates the difference between readings of two
source channels.
A x B A x B
Multiplies the readings of two source channels. This can
be useful for calculating electric power from a voltage
reading on one channel and a current reading on
another channel.
A / B A / B
Divides the reading of one source channel by the
reading of another channel. This can be useful for
observing the ratio of two related parameters. The
argument cannot be 0 or the result will be "+OL".
Average
[1]
A1 + A2 + A3…
N
Calculates the arithmetic mean of the readings of
selected channels.
Maximum
[1]
N/A Finds the maximum reading among selected channels.
Minimum
[1]
N/A Finds the minimum reading among selected channels.
Sum
[1]
A1 + A2 + A3… Calculates the sum of the readings of selected channels.
Note
[1] - Maximum of 10 channels can be calculated.
Set up a math channel as follows (see Table 3-11):
1. Connect and configure the channel or channels to apply the math formula to.
2. Set the channel to ON (see “Set Channels to ON or OFF” on page 3-12). When the
channel is set to ON, a channel configuration sequence shows on the display that
steps the user through an initial configuration sequence as shown in Table 3-11. If the
channel was previously configured, push

to cancel the configuration sequence
to use the last channel configuration.
3. Use the information in the Table 3-11 to configure the math channel. Push

or

to highlight the channel setting then push

to edit the setting.