Fluke 8860A Operator's Manual page 57

OPTION
-007
007-9.
To
operate the Externa!
Reference
option, use the
following procedure.
Apply
a
dc
voltage
to
the Externai
Reference connector
(the
upper
pm
«
positive).
2.
Select
the appropriate
function
and range.
FCl^EXTIiEF on^the
MMi^frontpanel^^eind^tOTli^in^fo'SeEXT
REF
switch turns on.
4.
For
voltage
measurements,
the d.splay
will
now read a
number
equal
to:
..
10
VlN x vFIF
and
for resistance
measurements:
Rin
X
10
/
*
007-4