Associated Research HYPOTULTRA III 7620, Operation And Service Manual, Page: 60 / 148

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separated, a doubling of the real leakage current can go virtually undetected by a total current
measurement.
Because Real Current is installed in HypotULTRA III, additional parameter selections are added
to the ACW test parameters. The additional test parameters are Max Lmt R (Real Current
Maximum limit), Min Lmt R(Real Current Minimum Limit) and Display. The standard total
current limits have a “T” next to them indicating total current.
The AC Real Current function allows the operator to view both real and total current
simultaneously. The Display parameter allows you to select which meter will display the real
and total current. When the display parameter is set for Total, the large current meter will
display the total current and the real current will be displayed in the small current meter below
the Memory name. The opposite is true when the display parameter is set for Real.
A C W T o t a l S e t t i n g s M e m N a m e * *
M 5 0 - 8 _
P 9 9 9 . 9 s 1 0 . 0 0 m A R
M e m o r y
S t e p
E d i t
< m o r e >
4.3.3. DC Withstand, Model 7650 Only
From the Test Parameter-review screen, scroll the highlighted area to the Test Type and press
the “Edit” soft key.
The Test Parameter edit screen will now be displayed. Now press the “Change” soft key until
the letters DCW appear in the parameter field. Press the ENTER key to select the DCW test.
The DC Withstand parameter-review screen will appear as follows:
T e s t T y p e D C W R a m p H I O F F
V o l t a g e X X X X V C h a r g e L O X X X . X u A
^
M a x L m t x x x x x u A A r c D e t e c t O F F
M i n L m t x . x u A A r c S e n s e 5
v
R a m p U P 9 9 9 . 9 s C o n t i n u i t y O F F
D w e l l 9 9 9 . 9 s S c a n n e r H L H L H L H L
< >
R a m p D N 9 9 9 . 9 s E x S c a n H L L L H L L H
C o n n e c t O N
P r o m p t x x x x x x x
E d i t
The Scanner selections will only appear if there is a scanner installed or an external scanner
connected to the instrument. This is an auto detect feature in hardware.
From the DC Withstand parameter review screen the following parameters may be selected for
editing: Voltage, Max-Lmt, Min-Lmt, Ramp Up, Dwell Time, Ramp Down, Connect, Ramp-HI,
Charge LO, Arc Detect (ON/OFF), Arc Sense, Continuity selection (DC continuity or OFF),
Small Current Meter