HP 4440B User manual

HP 44408
DECADE CAPACITOR
et
4440B

CERTIFICATION
The
Hewlett-Packard
Company
certifies
that
this
instrument
was
thoroughly
tested
and
inspected
and
found
to
meet
its
published
specifications
when
it
was
shipped
from
the
factory.
The
Hewlett-
Packard
Company
further
certifies
that
its
calibration
measure-
ments
are
traceable
to
the
U.S.
National
Bureau
of
Standards
to
the
extent
allowed
by
the
Bureaw's
calibration
facility.
WARRANTY AND ASSISTANCE
All Hewlett-Packard products are warranted against defects in
materials and workmanship. This warranty applies for one year
from the date of delivery, or, in the case of certain major compo-
nents listed in the operating manual, for the specified period. We
will repair or replace products which prove to be defective during
the warranty period provided they are returned to Hewlett-
Packard. No other warranty is expressed or implied. We are not
liable for consequential damages.
Service contracts or customer assistance agreements are available
for Hewlett-Packard products that require maintenance and re-
pair on-site.
For any assistance, contact your nearest Hewlett-Packard Sales and
Service Office. Addresses are provided at the back of this manual.
EN

OPERATING
AND
SERVICE
MANUAL
Part No. 04440-90003
MODEL
4440B
|
DECADE
CAPACITOR
SERIALS PREFIXED: 1224) and above
See Section VI for Other Serial Prefixes.
COPYRIGHT
YOKOGAWA-HEWLETT-PACKARD,
LTD.,
1969
9-1,
TAKAKURA-CHO,
HACHIOJI-SHI,
TOKYO.
JAPAN
Printed: MAR. 1980
Ú; HEWLETT
PACKARD

Table of Contents
List of Tables
ii
TABLE OF CONTENTS
Section
Title
Page
I GENERAL
INFORMATION
ie
ca
...u
cece
eh
hh
tnn
1-1 lütroduction Z<, ae poste ла pert kx cu at ra pata халан 3
1-4 Specifications ..
1-6. Instrument Identification às
1-8 Машай Changes. ir замаг san dike ren bot Re Ste as eo
H INSTALLATION
2-1 Tntroduction. үг гээ aussen e
2-3. Unpacking and Inspection.......
2-5 Storage and Shipment ............
2-8 Installatlon. iiss zur кыздык, BES EBS DEE S's 4
IT OPERATION
3-1 Intröduetion. ¿a es mora
3-3. | Controls and Connectors
IV MAINTENANCE. Si 4-1
4-1
Introduction........
4-1
4-3
Test
Equipment
...........
.
4-1
4-5 In-Cabinet Performance Сһеск.......................... 4-1
4-10;
.Adjüslmenb
=
>=:
среза
pass
s
4-2
4-13. Vernier Adjustment : . 4-2
4-14. Fourth Decade Adjustment .........ooooooooomoooo».. 4-2
4
15
Third
Decade
Adjustment
...2;..
sci
cesses
я
Кай
=>:
4-4
4-17. Troubleshooting 2 5... au 4 ae nu anne a eee nn nen в 4-4
V
5-1
a 5-1
5-1
VI
6-1
6-1. OPLIONS ¿yy oe seb Sara ea S gu ek . 6-1
6-3. Special Instruments 2270 . 6-1
6-5 Manual Changes «s «a p 5:4 enia d mir an ea наныя 6-1
VII CIRCUIT DIAGRAMS............--..-- 1
7-1 Introduction... š 1
71-3, General Notes: u... 0 эсээ ada ә ne en he ae 1
LIST OF TABLES
Number Title Page
1-1. Specifications
4-1 Test Equipment Required... sci. wu ete ous ve un eae wee хэн
4-2 Capacitance Check..
4-3. Composition of the lst Decade
4-4, Composition of the 2nd Decade ...
4-5
4-6
= Composition of the 3rd Decade ..........................
- Composition of the 4th Decade ..........................
5-1. List of Reference Designators and Abbreviations.......... 5-1
5-2. Reference Designation Index ............................ 5-2
6-1. Backdating Changes. ows apsu cu. es «из жаа cee язы nur жаз nn 6-1
Model 4440B
4440B-1

Model 4440B List of Illustrations
LIST OF ILLUSTRATIONS
Number Title Page
1-1. | Model 4440B Decade Capacitor....... ба жов жазаса wayk d 1-0
3-1. Front Panel Controls and Connectors .................... 3-1
8-2: Operating Procedüre ¿ss lioe seg Hele 1 at 84 44:34 3-2
4-1 Measüriüe Cable. s ag same гд 228 sur er ал ай рдЕ 4-0
4-2 Testing Plate........... " " .. 4-0
4-3, Performance Test56tup. c... sara oye zn am sam in 4-1
4-4 1615-A Capacitance Bridge Setting ... hx, loui м aee xev 4-2
4-5 Parts БООХНОН «саах uer erg. py Мөр лав $ pas БаРЬИН 30 Ө 4 4-5
7-1. Schematic Diagram Notes, cocos sae жул бу з un ana 2% 2 7-2
7-2. Model 4440B Schematic Diagram ........................ 7-3
4440B-1 iti

Section I
Table 1-1 and Figure 1-1
Table 1-1.
Model 4440B
Specifications
—
Capacitance:
40pF
to
1.
2LF
in
steps
of
100pF
with
a
40pF
to
140pF
variable
air
capacitor
providing
continu-
ous
adjustment
to
better
than
2pF
between
steps.
Dielectric:
Silvered
mica
for
decade
steps.
Direct Reading Accuracy:
+(0.
25%
+3pF)
at
1kHz
for
three-terminal
con-
nection:
capacitance
increase
for
two-terminal
connection
is
less
than
1pF
(nominal
0.
5pF).
Temperature
Coefficient:
-0
to
+70
ppm/*
C
Dissipation Factor:
0.001 max at 1kHz above 1040pF.
*0. 005 max at 1kHz below 1040pF.
* For lowest decade only.
Resonant Frequency:
Typical values of the resonant frequency are:
450kHz at 1uF, 4MHz at 0. 01uF, and 40 MHz
at 100pF.
Insulation Resistance:
5 x 10? ohms minimum, after 5 minutes at
500Vdc.
Maximum Voltage:
500V peak
Operating Temperature:
ОС - 65°C
Weight:
Approximately 5.5 lb. (2. 5kg)
Dimensions:
4440B
DECADE
CAPACITOR
40р!
HEWLETT
+
PACKARD
Loe
ae
Figure 1-1, Model 4440B Decade Capacitor
4440B-2

Model 4440B
Section I
Paragraphs 1-1 to 1-9
SECTION I
GENERAL INFORMATION
1-1. INTRODUCTION
1-2. The HP 4440B Decade Capacitor is a high-
accuracy instrument providing usable capacitances
from 40pF to 1.25F. 150. 25% accuracy makes it an
ideal aid in circuit design, ac bridge measurements,
and any application where accuracy is critical, such
as a working standard. The 4440B is also ideally
suited for production line testing.
1-3. The4440B offers simplicity of operation combin-
ing four easy-to-read decade ranges in a lightweight,
compact package designed for operator convenience
and speed. The use of silvered-mica capacitors in
all decade steps providesfor high accuracy, low dis-
sipation factor, and good temperature coefficient. An
air capacitor vernier provides 100pF of additional
capacitance with 2pF resolution between the 100pF
steps of the smallest decade. The capacitors are
housed in a double shield, such that the increased
capacitance from three-terminal connection to two-
terminal connection is held to ipF.
1-4. SPECIFICATIONS
1-5. A complete list of specifications is found in
Table 1-1.
4440B-1
1-6. INSTRUMENT IDENTIFICATION
1-7. Hewlett-Packard uses a two- section eight-digit
Serial numberto identify instrument. The first three
digits (preceding the dash) are the serial prefix which
identifies a series of instruments; the last five digits
identify a particular instrument in the series. The
serial number appears on a plate located on the rear
panel. All correspondence with Hewlett - Packard
Sales/Service Offices with regard to an instrument
Should reference the complete serial number.
1-8. MANUAL CHANGES
1-9. This manual provides operating and service in-
formation for the HP Model 4440B Decade Capacitor.
Information in this manual applies directly to instru-
ments(as manufactured) with serial numbers prefixed
by the three digits indicated on the title page. If the
Serial prefix of the instrument is different from that
on the title page, a "Manual Changes" sheet supplied
wil describe changes which will adapt this manual to
provide correct coverage. Technical correction (if
any) to this manual, due to known errors in print, are
called Errata and are shown on thechange sheet. For
information on manual coverage of any HP instrument,
contact the nearest HP Sales/Service Office(addresses
are listed at the back of this manual).
1-1

Model 4440B
Section II
Paragraphs 2-1 to 2-11
SECTION И
INSTALLATION
2-1. INTRODUCTION
2-2. This section contains information for unpacking,
inspection, repacking, storage, and installation of the
Model 4440B.
2-3. UNPACKING AND INSPECTION
2-4, If the shipping carton is damaged, ask that the
carrier's agent be present when the instrument is un-
packed. Inspect the instrument for damage(scratches,
dents, broken knobs, etc.). If the instrument isdam-
aged or fails to meet specifications, notify the carrier
and the nearest Hewlett-Packard Field Office (see list
at back of this manual). Retain the shipping carton
and the padding material for the carrier's inspection.
The fieldoffice will arrange fortherepairor replace-
ment of your instrument without waiting for the claim
against the carrier to be settled.
2-5. STORAGE AND SHIPMENT
2-6. PACKAGING, To protect valuable electronic
equipment during storage or shipment always use the
best packaging methods available. Your Hewlett-
Packard field office can provide packing material such
as that used for original factory packaging. Contract
packaging companies in many cities can provide de-
pendable custom packaging on short notice. Here are
a few recommended packaging methods:
a. RUBBERIZED HAIR. Cover painted surfaces
of instrument with protective wrapping paper.
Pack instrument securely in strong corrugated
container (350 10754 in. bursting test) with 2-
4440B-1
inch rubberized hair pads placed along all sur-
faces of the instrument. Insert fillers between
pads and container to ensure a snug fit.
b. EXCELSIOR. Cover painted surfacesof instru-
ment with protective wrapping paper. Pack in-
strument in strong corrugated container (3501b,
Sq in. bursting test) with a layer of excelsior
about 6 inches thick packed firmly against all
surfaces of the instrument.
2-7. ENVIRONMENT. Conditionsduring storage and
Shipment should normally be limited as follows:
a. Maximum altitude, 20, 000 feet.
b. Minimum temparature, -40° F (-40°C).
c. Maximum temparature, 167*F (75°C).
2-8. INSTALLATION
2-9. The Model 4440B is a submodular unit, equip-
ped with rubber feet for bench operation as shipped
from the factory. However, when used in combination
with other submodular units it can be rack mounted.
The HP adapter frame is designed for this purpose
and is available through your Hewlett-Packard Sales:
Service Office.
2-10. ADAPTER FRAME(HP Part No. 5060-0808)
2-11. Theadapter frame is arack frame that accepts
any combination of submodular units. It can be rack
mounted only.