Fluke 8842a instruction manual Local button causes the 8842A to display its

8842A

Instruction Manual

TRIG triggers a new reading. Enabled in external trigger mode.

EXT TRIG toggles between internal and external trigger modes

		RATE cycles between slow, medium and
		fast reading rates. Automatically
		selects the optimum filter for each
		reading rate.
		SRQ generates a service request over the IEEE-
		488 bus if enabled by the SRQ mask (IEEE-488
		Interface option only). When pressed for 3
		seconds, SRQ initiates diagnostic self-tests.
		NOTE: Leave inputs disconnected during self-
M		tests or the 8842A may indicate errors.
OFFSET stores the displayed reading as an		If the 8842A is in remote, LOCAL returns it to
offset, which the 8842A subtracts from all
		local control. If the 8842A is in local, the
subsequent readings in the function
		LOCAL button causes the 8842A to display its
presently selected. Readings in the other
		bus address for two and one half seconds.
functions remain unaffected. Pressing
		Ignored if the IEE-488 Interface is not
OFFSET again cancels the offset, or stores
		installed.
a new offset if in a different function.
Reading Rate Slow, Medium		Error Condition
	Overrange	Calibration Mode Enabled
and Fast. Blinks off when a
reading is triggered.		Autorange On
External Trigger		Offset On
Mode Enabled
Self-Test		Function
		and Units
Enabled
		Annunciators
IEEE-488 Interface
Annunciators
		f2-05_2.wmf

Figure 2-5. Front Panel Features (cont)

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