Sears 82413 - 2. PROTECTION FEATURES; 3. SPECIFICATIONS; General and DC Voltage Specifications

2.
PROTECTION-UL
1244,
VDE
O4I1
Fully
Overload
hotected
-
Ot*l..d
protection
is accomplishcd
orr rrll
t;trtllcs
For
overvoltage
protection'
a
seclected
sparkgap
witlr
low
capa-
cidance
is-used
which
proved
superior
in
pcrlirrtttrtrrcc'than
the varistors
used
in other
instrumcnts
Art ilrrrrslr
(
tlrrcnt
limiter
combination
protects
500V
DC
or lttrs
A(l
trrt all
resistance
rages.
Al.o
"
pair of
fast
switching
high
cttrrcrrt
siltc()rr
(li()des
plus
a
fuse
provide
excellent
protection
on
rll
'
ttttt
ttt
rrtrtgcs'
Furthermore,
the
input of
the
analog
to
ililiitrrl
I
()trvcrtcr
is
protccted
against
overvoltages.
Frotected
Inpuf Socket
and
Test
Lrads
The
0.16
in. input
sockets
are
fully
rcccsse'l
'ttrrl
pro-
tected
against
accidental
contacts
The
tcst
lcarls
srtpl>licd
with
the
equipment
give added
safety
to
tltc usct
sitrt.
the
jacks
are
sheathed
thus
avoiding
dangerous
corl'rfcti()rrs
to
-eventual
high voltages.
The
prods
supplicd
havc.
lirtgcr
stoppers
to k""p
fingers away
from
the
barc
cnd'
'Ilr(:
l)r'od
t"r-in"ls
are
sufficiently
long
and
slendcr
to
rcach
:tny tt:st
points found
in actual
boards.
Operator
Protection
pt"tri"
,ASS
casing
is
intrinsically
insulated'
Deeply
re-
cessed
socket
and
safety
leads insure
a
large
degrce
of
pro-
tcction
to
the
user.
Strong
current
cut-off
power
in case
clf
accidcntal
or
erroneous
connection
to a
power source,
will
blow
a
fusc without
damage
to
the
operator
or equipment
(rrt,
:rrc
in rlre
frts.
,
tlo itlstrultt.'nt
burn-out)'
3-
x
(0.25%
of rdg
+
1
digit)
3. SPECIFICATIONS
Geneil
oi"pt"y, ZUdigit
LcD. 0.5tt
height,
with polarity and
LO BAT
indication.
Overrange
Indication: 3
least significant digits
blanked.
Maximum Common
Mode
Voltage: 500V
peak.
Operating
Environment: 0o to
50oC;less
than
S}Vorelat\ve
humidity up to 35oC,
less than 70%
relative
humidity
from35oC.to 5OoC.
Storage
Environment:
-15oC
to
50oC.
Temperature Coefficient
(0o
to
L8oC
and
28o to
50oC):
less
than 0.1
X applicable accuracy
specification
per
oC.
Power:
9V
alkaline or
carbon-zinc battery
(NEDA
1604)
Battery Life:
100 hours typical with
carbon-zinc cells
200
hours with alkaline
cells.
Battery Indicator:
Display indiates
"LO
BAT" when
Iess than
2Mo
of life
remains.
Dimensions Weight:
6.7'.'Hx 3.4"'w
x
1.7t'D (17Omm
X
87mm
X 42mm),
13.4
O2
(3829)
DC
Voltage
Range
200mV
2V
20v
200v
1000v
Resolution
0.1mV
1mV
1OmV
10OmV
1V
Accuracy