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II
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Model 7414A
Section II
Installation
SIGNAL CONNECTOR PREPARATION
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a. Slide the prepared end of the cable into the cable clamp and through the
connector shell. Also slide the end of the cable through the guard shield
extension, for guarded input circuits. For non-guarded input circuits,
remove and store the guard shield extension.
b. Wire the connector according to the diagram below, according to
preamplifier to be used. For guarded input circuits, slide the guard shield
extension into place after soldering the signal leads to terminals A and B.
c. Press the connector block carefully into the connector shell.
d. Insert the retaining ring.
e. Tighten the cable screws.
f.
Check with an ohmmeter to determine that the cable shields are not
shorted to the connector shell or to each other.
Connector
HP 1251-1895
GUARD
~
CABLE
SHIELD
I
CLAMP
~
~
,
ETAINER
~
RING
~~.~.
INSULATOR
\%i
,BLOCK
'"
GUARD SHIELD
EXTENSION
SHELL
SIG+ .........
~---.
1/4 1/4 1/4 1/4
SHIELD
~
t
CONNECTION
Double-
- - -
Shield Cable
l q
HP 8120-0800
cO~'i:~~~I:;:
3/4
~
1-1/4
~
,-, -
SIG -
-+--+-L-.l..--~
SIG -
-++-----,
SIG+
PREAMPLIFIER
MODEL
8803A
8806B
*
8807A
**
GUARDED CABLE PREPARATION
Single-
Shield Cable
HP 81 20-0718
NOTES:
!
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*
1. Connect Ref voltage to pins A and B on
auxiliary connector of the power supply.
**
1. AC output available on pin C of aux iliary connector
of the power supply.
2. DC input (8807A, Opt 02) available on pins A and B
of auxiliary connector of the power supply.
2
SIG -
-;'--H-'---~
S IG
+
.....:....~----.
Double-
Shield Cable
HP 8 120-0800
1/4 1/4 1/4
~M~,~IELO
~ N E C T I O N
1--
1 - 1 / 4
SIG -
.........
+-----,
SIG+
PREAMPLIFIER
MODEL
8801A
8802A
8808A
8809A
"NOTE:
NON-GUARDED CABLE PREPARATION
Single-
Shield Cable
HP 8120-0718
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I!
Single conductor sh ielded cable can be used
by connecting center conductor to pin A and
shield to pin B.
CARRIER PREAMPLIFIER CABLE PREPARATION
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PREAMPLIFIER
MODEL
8805A
8805B
HP Transducers having 5-pin AN connectors (pin
pattern
0 )
use I nput Adapter 14060B for sig-
nal input connections. For other signal sources,
connect the input signals as shown. The transducer
output leads and transducer excitation leads must
be twisted and enclosed in braided shielding.
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Figure 24. 7414A System Input Cable Preparation
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07414-1
2-5
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