Fluke PM6681R, PM6685R Output Subsystem, Scaling Factor, factor, full scale value, Example

Using the Subsystems

Output Subsystem

The analog output is turned off as a de-	Scaling Factor
fault. You turn it on/off and set the scal-	The scaling factor has two functions:
ing factor under ANALOG OUT in the
aux menu.	– Its exponent selects which digits to output
	on the analog output.
	– Its value sets what reading should represent
	full scale.

	S c a lin g			As default, the scaling factor is 1 (1E0).
				f a c t o r			s e le c t s		is
	f u ll			This means			that	the full scale value
			s c a le		v	lu e
. 6 7 8 9 0 o n t h e d is p la y								1
g 3 . 3 8 V	s c a lin g				f a c t o r
	w i t h			0.999 and the analog output converts the
	s c a lin g				f a c t o r			4
s c a li n g	f a c t o r 1			fraction (digits to the right of the decimal
				point) to a voltage.
￿	#	8		The scaling factor should be:
	5 V r a n g e			Scaling		factor ￿		1
								full scale value
A N A L O G			O U T	where full scale value is the value for
c o n n e c t o r				which you want the analog output to out-
				put its maximum voltage (5 V).
S c a l in g e x p o n e n t m o v s
in s e r t io n 1 2 V rΩpm s - 5 05oΩ0 in t				Example:
	3 5 0 ΩV p - 1 M			– Take a measurement result, for instance:
A n a lo g	O u t =		O N ,	s e12t.34567890s c a E+6linHzg f a c t o r					a n d e x p o n e n t

		– Represent this result without exponent:
Figure 6-3	The analog output func-	12345678.90 Hz
	tion.	– Multiply this value with the scaling factor,
		for instance 0.001.
		12345.67890
		– Take the fractional part of the result:
		.67890
		Output Subsystem 6-11