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Mode
l
5315A/B
General Informati
on
Table 1-1.
5315A/B
Specifications
(Continued)
Low Voltage Indicator: Instrument turns itself off
automatica
lly
when low batlery conditions
exists.
Discharge LED flashes
slowly when
this
happens.
Discharge
LED
is on
whenever
battery
is supply-
ing
power
to
instrument.
Charge LED indicates
state
of charge of battery
and
is
on whenever battery
is
charged
to
95%
NOMINAL of capacity. Charge
LED
flashes when
90% NOMINAL
of
charge
taken out
is
replaced.
Charge LED
is
off
if
charge
is
less
than
90%
NOMINAL
capacity.
Line Failure Protection:
Instrument
automatically
switches to
battery
in case of
line failure.
Weight:
Option 002 adds 1.4 kg (3 Ibs.
)
to weight of
instrument.
53158: Rack and stack metal case; AC line power on
ly.
Specifi
cations same as 5315A
except
as fo llows:
Rack Mount: 53158 is recommended fo
r
rack mount-
ing
via
Rack Mount Kit 5061-0072
Oscillator Output: 10 MHz, 50 mV pop
into
son
load
External Frequency Standard: 10 MHz, lV rms into
soon
Dimensions: 215mmwidex81 mmhighX279mmiong
(
6~
x
31;8 x 107/S
in.)
Weight:
4
kg (8.8
Ibs.)
GENERAL:
Check: Counts inte
rnal
10 MHz reference freq uency
o
ver gate
ti
me range
NOMINALLY
500
p's
to 20
ms.
Error Light: LED warning light
activated
if logic e rror
is
found during
instrument
turn-on self-check.
Display: 8-digit amber LED
display,
with e ngineering
units
an nu nciator.
01ierflow: O
nly
freque
ncy
a nd tota lize measurements
wil
l
overflow. In
case of overflow, e ight
least significant
d
igits will be displayed and amber
fr ont
panel
overflow
LED
will
be actuated
.
All other measurements which
would theoretica
lly
cause a display of more than 8
d igits
will
res
u
lt in the displ
ay
of the
8
most
significant
digits.
Gate Time: Contin uously
variable,
NOMINALLY from
50
ms to 10
s
or
1
period of
the
input,
whichever is
longer.
Sample Rate:
Up
to 5 readings per seond NOMINAL
ex-
cept
in
time
interva
l
mode, whe re it is
contin
uously
variable
NOMINALLY
from 250 ms to 10 s via Gate
Time
cont ro
l.
Operating
Temperature:
0° to SOoC
Power Requirements: 100,1 15,210,
or
nov
(+5%,
-
10%)
48-66 Hz; 10
VA
max imum.
Weight
:
2.9 kg
(6
Ibs. 5
o
z.)
Dimendnn!;:
238
mm
winE>
x
qg
h igh
x
27n
mm long
(
9~
X
37/s
X
107/8
in.)
DEFINITIONS:
Resolution: Smallest
d
iscernible change of
measurement
result due
to
a
m
in
imum
change
in
the
inp ut.
Accuracy: Deviation
fro
m
the
actua
l
val ue
as
fi
xed
by
universally
accepted
standards of
frequency
and time.
Least Signincant Digit
(LSD)
Displayed:
Freq
uency:
2.S
X
10-7
Gate
Time
2.5
Ga~e
Time
Period
:
2.5
x
10-7
Gate Time
2.5
Gate Time
x
FREQ
FREQ
<1
0
MHz
FREQ ;:::10 MHz
x
PER
PER
>100
ns
X
PER2
PER
!:Ol00
ns
All
above calcu
lat io
ns should
be
rounded
to nearest
decade (i.e., 0.5
Hz
will become 1 Hz
and
0.4 ns will be
0.1
05
).
Time
Inlerval Average:
1
to 25 intervals
..
....
.
..
.
25
to
2500
interva ls
............
.
2500 to
250,000
.......
..
........
.
250,000
to
25,000,000
intervals
.
...
.
..
.
25,000,000
interval
s
.
.
....
.
...
.
. ...
.
..
.
LSD
100 ns
10 ns
1
n,
100 ps
10 ps
Time
Interval
Average
is a
statistica
l
process.
LSD
d
is-
played
is
calculated
for
1
standard
deviation
(0
)
con
-
fi
dence
leve
l.
Trigger Error:
_ _
--c=c.c~y<~
( 80~"~V~I
~ 2~+~,~"~c=c:
Input slew
rate at trigger
point
(rmsl
where
en is the rms noise of the input for a 100 MHz
ba ndwidth.
t Due
to arith
metic
truncat
ion,quantization
error
will be
±1
or
±2
counts of the LSD as fo llows:
±
2
counts
01
LSD
if
±
2
counts
of
LSD if
LSD
1
X
1(}-7
FREQ
<10
MHz
FREQ or
PER
LSD
>
lI(Gate
Time)
FREQ or
PER
fREQ
FREQ
;:::10 MHz
±
1
count
of
LSD
for all other
cases.
1-3
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