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MX + B
This math function multiplies the measured laser diode voltage or photodiode detector
current by an offset factor and adds an offset value as follows:
Reading
= MX + B
where:
M = gain (slope) factor
X = measured laser diode voltage (V
B = offset value
Press CONFIG > press MATH > select CHANNEL1, CHANNEL2, or CHANNEL1 >
select MX +B_UNIT (CHANNEL1 only). Enter M, B, and units at the prompts.
Press MATH. The measurement field(s) on the bottom line will display the MX+B value.
Delta (remote only)
This math function computes the difference between the detector 1 current and the
detector 2 current reading:
Delta
= I
PD1
where:
I
= detector 1 current
PD1
I
= detector 2 current
PD2
The calculation is performed point-by-point on individual A/D samples, not on the final
current measurements, and it is available only via remote using the CALC4 commands
(Table
11).
- I
PD2
Quick Reference Guide
) or photodiode current (I
L
25
)
PD
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