Fluke 415B User manual

I
Notwithstanding any provision of any agreement the following warranty is exclusive:
The JOHN FLUKE MFG. CO., INC., warrants each instrument it manufactures to be free from defects in material and
workmanship under normal use and service for the period of 1-year from date of purchase. This warranty extends only
to the original purchaser. This warranty shall not apply to fuses, disposable batteries {rechargeable type batteries are
warranted for 90-days), or any product or parts which have been subject to misuse, neglect, accident, or abnormal
conditions of operations,
In the event of failure of aproduct covered by this warranty, John Fiuke Mfg. Co., Inc., will repair and calibrate an
instrument returned to an authorized Service Facility within 1year of the original purchase; provided the warrantor's
examination discloses to its satisfaction that the product was defective. The warrantor may, at its option, replace the
product in lieu of repair. With regard to any instrument returned within 1year of the original purchase, said repairs or
replacement will be made without charge. If the failure has been caused by misuse, neglect, accident, or abnormal
conditions of operations, repairs will be billed at anominal cost. In such case, an estimate will be submitted before
work is started, if requested.
THE FOREGOING WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS,
OR ADEQUACY FOR ANY PARTICULAR PURPOSE OR USE. JOHN FLUKE MFG. CO., INC., SHALL
NOT BE LIABLE FOR ANY SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN
CONTRACT, TORT, OR OTHERWISE.
!f any failure occurs, the following steps should be taken:
1, Notify the JOHN FLUKE MFG. CO., INC., or nearest Service facility, giving full details of the difficulty, and
include the model number, type number, and serial number. On receipt of this information, service data, or
shipping instructions will be forwarded to you,
2. On receipt of the shipping instructions, forward the instrument, transportation prepaid. Repairs will be
made at the Service Facility and the instrument returned, transportation prepaid.
SHIPPING TO MANUFACTURER FOR REPAIR OR ADJUSTMENT
All shipments of JOHN FLUKE MFG. CO., INC., instruments should be made via United Parcel Service or “Best Way”*
prepaid. The instrument should be shipped in the original packing carton; or if it is not available, use any suitable
container that is rigid and of adequate size. If asubstitute container is used, the instrument should be wrapped in paper
and surrounded with at least four inches of excelsior or similar shock-absorbing material.
CLAIM FOR DAMAGE IN SHIPMENT TO ORIGINAL PURCHASER
The instrument should be thoroughly inspected immediately upon original delivery to purchaser, Ail material in the
container should be checked against the enclosed packing list. The manufacturer will not be responsible for shortages
against the packing sheet unless notified immediately. If the instrument is damaged in any way, aclaim should be filed
with the carrier immediately. (To obtain aquotation to repair shipment damage, contact the nearest Fluke Technical
Center.) Final claim and negotiations with the carrier must be completed by the customer.
The JOHN FLUKE MFG. CO., INC, will be happy to answer all applications or use questions, which will enhance your
use of this instrument. Please address your requests or correspondence to: JOHN FLUKE MFG. CO., INC., P.O. BOX
C9090, EVERETT, WASHINGTON 98206, ATTN: Sales Dept. For European Customers: Fluke (Holland) B.V., P.O. Box
5053, 5004 EB, Tilburg, The Netherlands.
'For European customers, Air Freight prepaid.
John Fluke Mfg. Co., fnc., P.O. Box C9090, Everett, Washington 98206
Rev. 6/81

415B
Table of Contents
SECTION TITLE PAGE
1INTRODUCTION AND SPECIFICATIONS l-I
1-1
1-1
1-1
1-2
1-2
1-2
2OPERATING INSTRUCTIONS 2-1
2-1. Receiving Inspection 2-1
2-4. Controls, Terminals, and Indicators 2-1
2-6. Power Input 2-1
2-9. Initial Operation 2-1
2-11. Operating Procedure 2-3
2-
12. Applications 24
3THEORY OF OPERATION 3-1
3-
1. Introduction 3-i
3-3. Block Diagram Analysis 3-1
3-8. Circuit Descriptions 3-1
3-25. Accuracy 3-2
4MAINTENANCE 4-1
4-1. Introduction
4-3. Service Information
4-6. General Maintenance
4-15. Test Equipment Required for Maintenance
4-1
4-1
4-1
4-1
1-1. Introduction
1-2. General Description .. .
1-6. Electrical Specifications
1-7. Mechanical Specifications .
1-8. Environmental Specifications
1-9. Outline Drawing ....
Rev. 1i

415B
TABLES OF CONTENTS, continued
SECTION TITLE PAGE
4-17. Performance Tests 4-2
4-29. Calibration 4-4
4-
35. Troubleshooting 4-5
5LIST OF REPLACEABLE PARTS 5-1
5-
1. Introduction 5-j
5-3. Columnar Information 5-1
5-4. How to Obtain Parts 5-1
5-7. Serial Number Effectivity 5-2
APPENDIX A-FEDERAL SUPPLY CODE FOR MANUFACTURERS
APPENDIX B-LIST OF ABBREVIATIONS
APPENDIX C-SALES REPRESENTATIVES AND SERVICE CENTERS
SCHEMATIC DIAGRAMS
ii Rev, 1

415B
List of Illustrations
FIGURE TITLE PAGE
Frontispiece Model 41 5B High Voltage Power Supply iv
1-
1Model 41 5B Outline Drawing 1-2
2-
1Controls, Terminals and Indicators 2-2
2-2 Power Transformer Terminals 2-3
2-3 'Operation with aReference Divider 2-5
2-
4Leakage Current Testing 2-6
3-
1Model 41 SB Block Diagram 3-3
4-
1Test Equipment Required for Maintenance 4-2
4-2 Protection Circuit 4-3
4-3 Linearity Test: 500, 100, 10 Volt Steps 4-4
44 Ripple on 125 Volt Supply 4-6
4-
5Ripple on High Voltage DC Output 4-8
5-
1High Voltage Power Supply 54
5-2 Chassis Assembly 5-6
5-3 Front Panel Assembly 5-7
54 Switch P/C Assembly 5-9
5-5 High Voltage Rectifier P/C Assembly 5-12
5-6 Series Pass P/C Assembly 5-14
5-7 Amplifier P/C Assembly 5-17
5-8 Bleeder P/C Assembly 5-19
Rev. 1

415B
Section 1
ntroduction &Specifications
1-1. INTRODUCTION
1-2. General Description
1-3. The Model 415B High Voltage Power Supply is a
stable well regulated source of dc voltage. The Model
415B is capable of providing 0to 3100 volts dc and 0to
30 milliamperes current. The output voltage is adjust-
able in steps of 500, 100, 10 and 1volt by front panel
step switch controls. Avernier control provides a
means of fine adjustment within the one volt steps. Out-
put power is available from both afront and rear panel
high voltage connector, type UG931/U. Output voltage
polarity may be switched by afront panel control to
provide either apositive or negative output with respect
to chassis ground of the instrument.
1-4. The power supply is provided with an overcurrent
protection circuit to prevent damage to the instrument in
the event of overload or accidental short circuit at the
output. Normal operation is quickly restored by a
manual reset control following removal of the overload.
1-5. The Model 415B combines the best features of
electron tubes and solid state components in a hybrid
circuit. The improved reliability and temperature
stability characteristics of silicon transistor amplifiers
and rectifier diodes together with the high voltage hand-
ling characteristics of vacuum tubes provide adepend-
able, low noise level, highly regulated output. Applica-
tions of the Model 415B include calibration of voltmeters
and powering of photomultiplier tubes, high voltage
klystrons or other devices with current requirements up
to 30 milliamperes.
1-6. ELECTRICAL SPECIFICATIONS
OUTPUT VOLTAGE
Adjustable from 0to ±3100 volts dc.
OUTPUT CURRENT
0to 30 milliamperes.
OUTPUT POLARITY
Positive or negative with respect to ground (the polarity
is controlled by a front panel switch).
LOAD REGULATION
0. 0005% or 5millivolts (whichever is greater) from a
no load to afull load change in output current.
LINE REGULATION
0. 0005% or 2millivolts (whichever is greater) for a10%
line change from nominal,
STABILITY
±0, 0020% per hour; ±0. 01% per day after warmup period
and constant line voltage, constant load and constant
temperature.
RIPPLE
Less than 100 microvolts RMS; less than 1millivolt
peak-to-peak.
RESOLUTION
5millivolts.
CALIBRATION ACCURACY
±0. 25% or 100 millivolts (whichever is greater) with,
vernier at zero.
RESETABILITY
±0. 05% or 50 millivolts.
RECOVERY TIME
Within 50 microseconds.
OVERCURRENT PROTECTION
Adjusted to disconnect output at nominally 30 milliamperes
±10% load current. Manual reset.
WARMUP TIME
60 minutes to meet specifications.
INPUT POWER
100/115/230 volts ac ±10%, 50 to 60 Hz, approximately
300 volt-amperes at full load output.
Rev. 21-1

415B
1-7. MECHANICAL SPECI FICATIONS
OUTPUT CONNECTORS
One UG931/U front and rear (one mating connector
supplied),
METER
3100-0-3100 vdc (±3%).
WEIGHT
Approximately 30 pounds.
1-8. ENVIRONMENTAL SPECIFICATIONS
OPERATING TEMPERATURE
0°C to 50° C.
ALTITUDE OF OPERATION
Sea level to 10,000 feet.
STORAGE OR SHIPPING ALTITUDE
Sea level to 50, 000 feet.
VIBRATION
Meets MIL-T-945A.
SHOCK
Meets MI L-E-497 0A(20 g's, 11 milliseconds in three
principal axes).
TEMPERATURE COEFFICIENT OF OUTPUT
Less than 20 ppm per °C from +10° Cto +40° C.
STORAGE TEMPERATURE
-20° Cto 70° C.
HUMIDITY
0to 80%.
1-9. OUTLINE DRAWING
1-10. Figure 1-1 is an outline drawing showing all
dimensions necessary for mounting and installation.
Figure 1-1. MODEL 415B OUTLINE DRAWING
1-2 Rev. 1

Some semiconductors and custom IC's can be
damaged by electrostatic discharge during
handling. This notice explains how you can
minimize the chances of destroying such devices
by:
1. Knowing that there is aproblem.
2. Learning the guidelines for handling them.
3. Using the procedures, and packaging and
bench techniques that are recommended.
The Static Sensitive (S.S.) devices are identified in the Fluke technical manual parts list with the symbo
The following practices should be followed to minimize damage to S.S. devices.
1.MINIMIZE HANDLING
2. KEEP PARTS IN ORIGINAL CONTAINERS
UNTIL READY FOR USE.
3. DISCHARGE PERSONAL STATIC
BEFORE HANDLING DEVICES
Page tof 2

C=2 ^
1—iO°
C3 O
imttiiiiii/ timumiiii 1
1
DO NOT SLIDE S.S. DEVICES OVER
AMY St IRFAftF
I
I
7. AVOID PLASTIC, VINYL AND STYROFOAM®
IN WORK AREA
PORTIONS REPRINTED
WITH PERMISSION FROM TEKTRONIX, INC.
AND GENERAL DYNAMICS, POMONA DIV.
9. HANDLE S.S. DEVICES ONLY AT A
STATIC-FREE WORK STATION
10. ONLY ANTI-STATIC TYPE SOLDER-
SUCKERS SHOULD BE USED.
11. ONLY GROUNDED TIP SOLDERING
IRONS SHOULD BE USED.
Anti-static bags, for storing S.S. devices or pcbs
with these devices on them, can be ordered from the
John Fluke Mfg. Co., Inc.. See section 5 in any Fluke
technical manual for ordering instructions. Use the
following part numbers when ordering thesespecial
ba9s-.... „....
1Dow Chemical
John Fluke Part No.
680892
680934
680942
680983
681023
Pink Poly Sheet
30“ x60" x60 Mil
P/N RC-AS-1200
$20.00
Description
5" x8" Bag
8" x10" Bag
8” x12" Bag
12" x16" Bag
18" x18" Bag
Wrist Strap
P/N TL6-60
$7.00
Page 2of 2J0089C-Q7U841 2/SE EN Litho in U.S.A