5-10 Rel, Math, Ratio, Channel Average, dB Model 2701 User’s Manual
Reciprocal (1/X)
The reciprocal of a reading is displayed when the reciprocal (1/X) math function is
enabled:
Reciprocal = 1/X
where: X is the normal input reading
The displayed units designator for reciprocal readings is “R.” This units designator cannot
be changed.
Example — Assume the normal displayed reading is 2.5Ω. The reciprocal of resistance is
conductance. When the reciprocal math function is enabled, the following conductance
reading will be displayed:
0.4 R
Reciprocal (1/X) configuration
1. Press SHIFT and then MATH to display the math menu.
2. Press the RANGE or key to display “1/X” and press ENTER. The MATH
annunciator will turn on and the result of the calculation will be displayed. Note
that the calculation will be applied to all measurement functions.
3. To disable 1/X, again press SHIFT and then MATH. The MATH annunciator will
turn off.
NOTE The result of the 1/X calculation may be displayed in exponential notation. For
example, a displayed reading of +2.500E+03 R is equivalent to 2500 R
(2.5K R).
When using Rel, the rel’ed reading of the input signal is used by the 1/X
calculation.
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