Fluke PM6681R, PM6685R manual Speed Summary, Timesaving Com, Time Gain in ms, Sacrifice, mands

				How to Measure Fast
Timesaving Com-	Time Gain in ms			Sacrifice
mands
	PM6680B	PM6681	PM6685
	Freq	Freq	Freq
FREQ:RANG:LOW￿MAX	(23)		(23)	10kHz lower freq. limit for AUTO. This
				Timesaving is only possible when
				AUTO is on.
		(55)		50kHz lower freq. limit for AUTO. This
				Timesaving is only possible when
				AUTO is on.
INP:LEV:AUTO￿OFF	40	70	52	You have to set trigger levels manually.
DISP:ENAB￿OFF	5.4	3.5	7.7	Only the controller can read the result.
CAL:INT:AUTO￿OFF	0.22	N.A.	0.22	You must instruct the counter to cali-
				brate the interpolators once in a while
				to maintain accuracy.
SENS:ACQ:RES￿LOW	0.81	0 / 0.1	0.81	Works up to about 40kHz. The resolu-
				tion of each measurement drops to
				100ns for PM6680B/85 and 80ns for
				PM6681
				(PM6681 Only: Gives Back-to-back
				measurements in period, i.e. every pe-
				riod in a block is measured)
TRIG:COUNT￿2100	0.69	N.A.	0.69	No sacrifice, the program loop in the
				counter gets shorter, saving time.
TRIG:COUNT￿6143	N.A.	4.2	N.A.
INT:FORM￿PACK	1.15	1.2	1.15	You cannot use limit monitoring, math-
				ematics etc. in the CALC subsystem,
				nor the Display or the Output subsys-
				tems.
TRIG:COUNT￿1000(o	N.A.	0.13	N.A.	These commands (all together) will in-
r more)
				crease measurement speed the last
STAT:OPER:ENAB￿0
				step from about 4000 to over 8000
ARM:STA:LAY2:SOUR
				measurements/s
￿ IMM
INP:LEV:AUTO￿OFF
(All together)
FORM:TINF￿OFF	N.A.	0	N.A.	No timestamping possible. This only
				influences the read. Time stamps are
				always registred internally.

￿All these time gain estimates are approximations valid for frequency A mea- surements and may be changed without notice. The time gain/loss depends on measuring function.

Speed Summary 7-15