Internal Sensitivity: Normal
or
Auto mode:
AC
coupled:
.5
divisions
of
CRT deflection from
10
Hz
to
20
MHz,
increasing
to 1.5divisions
at
60
1101Hz
and 3divisions (typical)
at
100
1101Hz.
TI': 1division of signal needed.. Vertical sync selected for all
"msec"
sweep rates. horizontal sync selected for all "usee"
sweep rates.
External Sensiti\ity;
100
millivolts to 4() )IHz. triggerable to
100
MHz.
:.taximum input:
500
volts (DC + PeakAC).
CRT:
Size:
96.4
x
120
mm. (approximately 5 inches) rectangular.
Type: Post deflection tubewith
P31
<blue-green) phosphor.
Model:
l4OCGB41.
Accelerating \'oltage: 6
KV
to match CRT
requirements.
Graticule: Internally 8 x
10
division (approx
..
9
cm/divJ
etched
on
CRT faceplate
to
eliminate parallax. Special
O.
10.90. and
looct markings for rise time measurements.
Beam Finder: Disables trigger and intensity controls. and
reduces vertical andhorizontal gain to locatebeam.
Auto-Trackln,"
DI,ltal
Tesb
DC
Volts:
Ranges:
2.
automatically selected:
0-20.
~2000.
direct reading
.....
ith supplied low-c:apacily probes. Aceuracy: ±.5%.
±2
digit
including
lo
.....
-c:apacity probes.
~o
more than
.5$
between
channels.
Input Impedance:
15
megohms through supplied
lo
.....
-c:apacity
probes. 1.5megohmsdirect.
Resolution:
3l.1z
digits (2000counts).
Source: Selected
.....
ith channel A
or
B pushbuttons.
Protection:
3000
volts (DC +
Peak
AC)
v.ith supplied
low-
capacity probes.
500
volts (DC +
Peak
AC)
direct.
Peak·t~Peak
Volts:
Ranges: 4. selected by channel A
or
B input
attenuator
(unaffected by vertical vernier) : 0-8.
8-80.
80-800.
800-2000
\'olts
peak·t~peak.
Direct reading
....
ith
supplied
39G183
lOX
Iov.·-c:apacity probes.
Resolution: 3
V5
digits (8000 counts).
Aceurac)': ±2$.
±5
counts including Iov.·-capacity probes.
No
more than
2%
between channels. Calibrated
at
I
KHz.
Frequency Response:
±.5
dB from
30
Hz
to
30
:'IHz.·3
dB
at
6OMHz.
Method (patent pending):
DC
coupled. microcomputer conlrol·
led
successive approximation for positive and negative peak.
26approximations per reading.
worst-case.
Source:
Channel A
or
Bselected by pushbutton.
Frequenc)':
Ranges: 7 automatically selected: 1.00·9.99
Hz.
10.00·99.99
Hz.
100.0
. 999.9
Hz.
1.ססoo
•
99.9999
KHz.
100.000
. 999.999 KHz.
1.0ססoo·9.99999
:'lHz.
10.ססOO·99.9999
)IHz.
Resolution:
Up
t06
digits (microcomputer controlled)
•.
01
Hz to
10
KHz
depending
on
input frequency
(see
'"Ranges"
aOO\'e
for details). Automatic resolution multiplier used for 1 Hz .
100
KHz
to reduce
gate
time.
Accuracy:
±.OOl%. :::1 digit from
15
a
to 35-C (59
a
to gs"F>.
Aging less than
.0Ot
$ per year.
Source:
Selected
....
ith
channel A
or
B pushbutton. :\licrocom·
puter
automatically selects trigger circuit output
or
auxiliary
counteramplifierdepending
on
trigger source selected.
Sensitivity:
Same
as
internal trigger circuits if reading frequen·
C)'
of channel used
as
trigger
source.
1.5
division of CRT
deflection
if
reading channel other than triggersource.
Read Rate: Automatically selected:
<2
second for frequencies
between 1and
10
Hz.
<.5
seconds for higher frequencies.
Frequency Ratio:
Method: Calculates ratio
of
frequencies applied to channel A
andB.
5
Range: 1 to 999.999.
AlB
or
BIA display annunciators indicate
which input frequency is
greater.
Sensiti
..
ity:
Same as frequency function.
Accuracy:
:::3
digits
(percentage
does not apply because
aceurac)'of
channel Acancels aceuracyofchannel B).
Response Time:
I to 'I
secoods
depending
on
input frequencies.
&Ita
DI,ltal
Tesb
Delta
Bar:
Measuremenl Bar: Intensified
area
set to any portion of wa\'e-
form
with Delta Begin and Delta End controls; functions
of
controlsautomaticallyreverse if overlapped.
Range:
1second to 50 nanoseconds.
Setability:
±2O
oS typical.
Peak·t~Peak
Volts:
Flmction: Amplitudeof intensified
area
measured.
Rangeand Specifications: Same as
Peak·tc>-Peak volts abc)\'e.
Source: Seleeted
\\ithchanne1 A
or
8 pushbutton.
Delta Time:
Function: Actual time of intensified
area
measured.
Accuracy:
Same
as
frequency function above.
Accuracy
unaffected by setting
of
horizontal
or
\'erticalcontrols.
Ranging: Microcomputer automatically places
deeimal and
annunciator reading of
mS
or
uS.
11
Delta Time:
Function: Calculates equivalent frequency of Delta Time read·
ing.
Aceuracy: Same
as
Delta Time.
Ranging:
Microcomputer automatically places decimal and
annunciator reading of
Hz.
KHz.
or
MHz.
Digital Display:
Type: Liquid crystal v.ith high temperature fluid for fast
response timeand
high
contrast.
Xumber
of
Digits: Six (resolution controlled by microcomputer).
Annunciators:
12
(controlled by microcomputer)
d.
A.
B.
)IHz.
KHz.
Hz.
uS.mS.
VDC.
VPP. AlB. and BIA.
General
Warm
Up
Time: Unit completely operable as soon
as
CRT
trace
appears. For maximum aceuracy
of
frequency measurements.
unit should operate for
at
least
30
minutes
at
room temperature.
Construction:
Vinyl-c:lad aluminum case. fully
£Ml
shielded.
with
C)'colac
a
bezel
Storage Compartment: Located
in
rear
for storage of probes
and other small
aceessories.
Size:
9.5"
x 12" x
17"
HWD
121.6
x30.5 x
U.2cm.)
Weight: 311bs.
OU
Kg.)
Power:
lOS·
130
VAC
50/60
Hz
as
deli\'ered from factory. Field
convertible
to
210
to
2SO
VAC
50/60
Hz
operation.
PowerConsumption:
90
.....
atts
maximum.
•
~"C'CUc
isa
rtPUftd
tndeca:t
01
Bcq·
.....
arntr
Accessories
Supplied:
2
ea:
39G
183
low-c:apacit~·
probes with isolated
DC
volts connec·
tor.
lea:
39G
157
DC \'oltage probev.ith multiplier resistor.
1ea:
66K28 color
TV
vectorgraticuleoverlay.
1ea: .;a" ground lead.
I ea: Instruction/Operation :'Ianual.
1
ea:
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