Table of Contents
Advertisement
Section III
b.
All interconnections are make within the 2070A; the
system comes ready to use.
c. The major Data Storage controls are available as
switches on the rear panel of the 2070A. These controls
include Storage Limit, Storage Enable, Scanner Control
Enable, Measure (External Trigger) and Internal Measure
Inhibit (See Figure 3-17).
ALLOWS SELECTION
OF STORAGE LIM IT
ENABLE SCANNER
CONTROL ENABLE
\JUMP COMMAND
FROM SCANNER
)
EXTERNAL TRIGGER
SWI TCH
DISABL
ES
INPUT
INTE
RNAL
SAM PLING
SYSTEM LI NE
ENABLES STO RAGE
14
PI
N CONNECT
WITH MAJOR DA TA
STO
RA
GE
CONTR
OL
LI
NES
SWITCH
IT
UR
NSON
FAN
PL
US DVM AND
PRINTE
R)
Figure 3-17. Rear Panel of the 2070A Data Logger.
The rear panel of the 2070A Data Logger equipped with Data
Storage (Option 005). Many of the major storage controls are
available on the rear panel. This makes operation of Data Storage
easier.
d
.
A convenient 14 pin connector on the rear panel
provides additional Data Storage control lines including
Preset Trigger (See Table 3-10).
e. The printer columns have been rearranged to provide
an easier to read format (see Figures 3-10 and 3-11 ).
Table 3-10. 2070A Rear Panel Connector for Data Storage.
Pin No.
Function
1
GROUND
2
MEASUREMENT HOLD
3
JUMP
4
STORAGE LIMIT "10"
5
STORAGE LIMIT "20"
6
STORAGE LIMIT "30"
7
STORAGE LIMIT
"
40"
8
MEASURE
9
SCANNER ENABLE
10
STORAGE ENABLE
11
INPUT CYCLE HOLD
12
PRESET TRIGGER
"
O"
13
PRESET TRIGGER "10"
14
PRESET TRIGGER "20"
3-31. Figure 3-18 shows an inexpensive trigger source for
use with the single channel plug-ins. This trigger source may
be calibrated with a counter then used with Data Storage.
Short term stability is good enough for most
applications.
3-32. HOW TO CLEAR DATA STORAGE.
3-33
.
Data Storage should always be cleared prior to
recording data to insure that it is not partly filled i.e., 7
readings already stored with STORAGE LIMIT set to 50.
3-34. Oearing may be done by pushing MANUAL PRINT
3-10
Model 11180A
50 K
-=-5.4V
14
13
12
11
10
9
8
HP1820·0207 OR FAIRCHILD 9601
OR MOTOROLA MC8601P·7025
2
3
5
6
111ao•-1-zs••
EXT. TRIG
.
+5
Uv
OUTPUT RANGE UP TO
1000/s
Figure 3-18. Trigger Source for Single Channel Plug-ins.
Variable Trigger source for use with Data Storage. This trigger
source may be calibrated with a counter, then applied to Data
Storage.
The short term stability
is good enough for most
applications.
Internal triggering in the 3481 A, 3482A, or 34B4A
plug-in is limited to 40 read
i
ngs/s.
on the 5055A Digital Recorder in the OPERATE mode.
MANUAL PRINT may have to be pushed a number of
times but will eventually cause Data Storage to begin an
output cycle.
3-35. An example is shown in Figure 3-19. Note that
MANUAL PRINT causes a partial reading to be
printed.
Full readings are printing during an output cycle. Once an
output cycle is complete, Data Storage is ready to
use.
Direction
of paper
tape
1041100023
0941100023
0841500023
0741500023
0641100023
0541500023
0441100023
0341500023
0241100023
0141100023
1043515
}
0943515
0843315
0743315
0643515
0543315
0443515
' >
Data Storage
cleared
Automatic
output/cycle
MANUAL PRINT
depressed seven
times.
Prior usage
entered three
readings.
3 + 7
=
10
(STORAGE LIMIT)
Figure 3-19. Clearing Data Storage.
3-36. APPLICATIONS.
3-37. The applications for Data Storage may be classified
into three categories. Examples are given for each category
in the following order:
a. A to D
Conversion.
I. Response time measurement
2. Transient analysis
J
,-
1
I
I
"J
1
·
1
.;.:
·~
, :·
:
:1
I:.
~··
u
Advertisement
Table of Contents
