Fluke 39.41b schematic
®
Fluke 39/41B
Power Harmonics Tester
4822 872 00916
July 1995 Rev. 3, 11/00
© 1995 Fluke Corporation. All rights reserved. Printed in the Netherlands.
All product names are trademarks of their respective companies.
Users Manual
LIMIT E D WARRANTY & LIM ITATIO N OF LIABILITY
Each Fluk e produc t is warranted t o be f ree from defects in material and workmanship under
normal use and serv i ce. The warranty peri od i s one year and begins on t he dat e of shipment.
Parts, product repairs and s ervices are warrant ed for 90 days. Thi s warranty extends only t o the
original buyer or end-user customer of a Fl uke authorized res el l er, and does not apply to fuses,
disposable bat t eri es or to any product which, in Fl uke’s opinion, has been mi sused, altered,
neglected or damaged by accident or abnormal conditions of operation or handling. Fluke warrants that software will operate substantially i n accordance wit h i t s functi onal s pecifications for
90 days and that i t has been properly rec orded on non-defective m edi a. Fluke does not warrant
that software will be error free or operate without i nt erruption.
Fluke authorized resellers shall extend t hi s warranty on new and unused products to end-us er
customers only but hav e no aut hori ty to ext end a greater or different warranty on behalf of
Fluke. Warranty support is available if produc t is purchas ed through a Fluke authorized sales
outlet or Buy er has paid the applic abl e i nt ernational price. Fl uke reserves the right to invoice
Buyer for im port ation cost s of repair/replac em ent parts when product purchased in one c ount ry
is submitted for repair in anot her country.
Fluke’s warranty obligation i s limited, at Fluke’s opti on, to refund of t he purchase price, free of
charge repair, or replac em ent of a defecti v e produc t which is returned to a Fluke aut hori zed
service center within the warranty period.
To obtain warranty service, contact your nearest Fluk e authorized serv i ce center or send t he
product, wit h a description of the diffic ul ty, post age and i nsurance prepaid (FOB Des tination), t o
the nearest Fluke authorized s ervice cent er. F l uke assumes no ri sk for damage in transit.
Following warranty repai r, the product will be returned to Buyer, t ransportation prepaid (FOB
Destination). If Fluk e determines that the failure was caused by misuse, alteration, acc ident or
abnormal conditi on of operation or handling, Fl uk e will provide an estimate of repair costs and
obtain authorization before comm encing the work. F ol l owi ng repai r, the product will be returned
to the Buyer transportation prepai d and the Buyer will be billed for the repair and return transportation charges (F OB Shipping Point ).
THIS WARRANTY IS BUYER’S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL
OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY
IMPLIED WARRANTY OF MERCHANTABILITY O R F I T NESS FOR A PARTICULAR PURPOSE. FLUKE SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
CONSEQUENTIAL DAMAGES OR LOSSES, INCLUDING LOSS OF DATA, WHETHER
ARISING FROM BREACH OF WARRANTY OR BASED ON CONTRACT, TORT, RELIANCE
OR ANY OTHER THEORY.
Since som e countries or s t ates do not allow l i m i t ation of the term of an implied warranty, or
exclusi on or l i m i t ation of incidental or consequent i al damages, the li m i t ations and exc l usions of
this warranty may not apply to every buyer. If any prov i sion of this Warranty is held i nvalid or
unenforceable by a court of competent jurisdi ction, such holding will not affect the validity or
enforceability of any other provision.
Fluke Corporation Fluke Europe B.V.
P.O. Box 9090 P.O. Box 1186
Everett WA 5602 B.D. Ei ndhoven
98206-9090 The Netherlands
SERVICE CENTERS
To locat e an authori zed ser vi ce center, vis it us on the World Wide Web:
http://www.fluke.com
or call Fluke using any of the phone numbers listed below:
+1-888-993-5853 in U.S.A. and Ca nada
+31-402-678-200 in Eur ope
+1-425-356-5500 from other countries
Table of Contents
Title Page
Safety ................................................................................................ v
About This Manual............................................................................. 1
Uses for the Tester ............................................................................. 1
Unpacking.......................................................................................... 2
Terminology Used in This Manual...................................................... 5
Battery Considerations ....................................................................... 6
Memory Retention.............................................................................. 6
Automatic Power Down...................................................................... 6
Getting Acquainted with Your Tester................................................. 7
Input Connections............................................................................... 9
Using the Voltage Test Leads........................................................ 9
Using the Current Probe................................................................ 10
Three-Phase Power Measurements..................................................... 11
Keypad............................................................................................... 14
Display Screen................................................................................... 19
Functions and Screen Modes.............................................................. 25
Waveform Screen Mode................................................................ 25
Harmonics Screen Mode................................................................ 27
Harmonics Zoom Mode ................................................................. 30
Text Screen Mode......................................................................... 31
VA Check Screen ............................................................................... 33
Recording Measurements ................................................................... 35
Power-Up Configuration..................................................................... 37
Storing & Recalling Measurements (Model 41B)................................ 39
Using the Serial Cable (Model 41B)................................................... 41
Printing (Model 41B)......................................................................... 43
Sending to a Printer or PC (Model 41B)............................................. 43
Using PC Software With the Tester (Model 41B) ............................... 43
Applications....................................................................................... 44
Plant Switch Gear (Service Entrance)............................................ 46
Distribution Transformer............................................................... 47
Electronic Equipment Load Center ................................................ 48
Generator Set................................................................................ 50
i
Fluke 39/41B
Users Manual
Adjustable Frequency (Speed) Motor Drive................................... 51
User Maintenance.............................................................................. 52
Cleaning........................................................................................ 52
Fuse Replacement......................................................................... 52
Battery Replacement ..................................................................... 52
Operational Test............................................................................ 54
If the Screen Flashes or is Blank at Power-Up ............................... 54
If Your Tester Does Not Work....................................................... 54
Accessories and Replacement Parts.................................................... 55
Specifications..................................................................................... 57
ii
List of Tables
Table Title Page
1. Key Descriptions...................................................................... 15
2. Status Line............................................................................... 20
3. Screen Abbreviations................................................................ 21
4. Special Messages ..................................................................... 24
5. Replacement Parts.................................................................... 56
iii
List of Figures
Figure Title Page
1. Tester and Accessories............................................................. 3
2. Additional Items (Model 41B).................................................. 4
3. Getting Acquainted.................................................................. 8
4. Measurement Connections (1
5. Three-Phase Measurement Connections
(For Balanced Circuits, 3
6. Three-Phase Measurement, Balanced or Unbalanced Connections
P
, 3-Conductor, D or Y)................................................... 12
(3
7. Three-Phase Measurement, Balanced or Unbalanced Connections
P
, 4-Conductor) ................................................................... 13
(3
8. Keypad..................................................................................... 14
9. Display Screen......................................................................... 19
10. Waveform Screens.................................................................... 26
11. Harmonics Screens................................................................... 28
12. Harmonics Overload Screen ..................................................... 29
13. Harmonics Zoom Screen........................................................... 30
14. Text Screens ............................................................................ 32
15. Typical VA Check Signatures................................................... 34
16. Record Screens......................................................................... 36
17. Configuration Screens.............................................................. 38
18. Memory Screen........................................................................ 39
19. Serial Communications (Model 41B)........................................ 42
20. Typical Applications................................................................. 45
21. Plant Switch Gear .................................................................... 46
22. Distri buti on Transformer (1
23. Distri buti on Transformer (3
24. Receptacle Load Center (Neutral Current Measurement).......... 49
25. Generator Set........................................................................... 50
26. Adjustable Frequency Motor Drive........................................... 51
27. Battery Replacement ................................................................ 53
P
) .............................................. 10
P
, 3-Conductor, D).......................... 11
P
Watts Text Screen) ................... 47
P
, 3C Watts Text Screen)............. 48
iv
Using Your Tester Safely
!
Warning
To avoid electric sh ock, use on ly the test leads supplied
with the Tester. Use 600V rat ed probe tip adapters.
(“600V” is printed o n the equipment.) Remove all test
leads that are not in use.
Use only the 80i-500s ac current probe or a safet ydesigned equivalent (such as t he Fluke M odel 80i-1000s)
that is rated for 600V on both th e jaws and the measuring
secondary. Remove any current probe that is not in use.
In this manual, a WARNING identifies conditions and actions that pose hazard(s) to the user. A Caution identifies conditions and actions that may damage the tester or the current probe. See below for explanations of international
electrical symbols.
Read the following safety information carefully before attempting to operate
or ser vice th e Tester or the current probe.
!
DANGEROUS VOLTAGE
AC-ALTERNATING CURRENT
DC-DIRECT CURRENT
Either DC or AC
EARTH
CAUTION see explanation in
manual
Equipment protected throughout
by DOUBLE INSULATION or
REINFORCED INSULATION
RECYCLING
HIGH BNC INPUT
International Safety Symbols
Safety Guidelines for Tester and Voltage Probe
To ensure that you use your Tester safely, follow these guidelines:
• Avoid working al one.
• Inspect the test leads for damaged insulation or exposed metal. Check test
lead continuity with a multimeter. Replace damaged leads.
• Do not use the Tester if it looks damaged.
v
• When using the voltage test leads, keep your fingers away from the probe
conta cts. Keep your fingers beh ind the fi nger guards on the probes.
• Use cauti on wh e n m easu ring above 60V-d c or 30V-ac r ms. S uch voltages
pose a shock hazard.
AC Current Probe Safety Guidelines
Follow these safety guidelines when using the AC Current Probe:
•
!
Never use the 80i-500s current probe on circuits rated higher t han
600V. Use extreme caution when clampin g t he current probe around uninsulated conductors or bus bars.
• Keep your fingers behind the finger guard on the 80i-500s.
• Check the magnetic mating surfaces of the probe jaws; these should be
free of dirt, dust, rust, or other foreign matter.
• Do not use a current probe that has been cracked or damaged or has de-
fective leads. If there is any such sign of impaired operation, tape the
probe shut to prevent operation.
• The 80i-500s has been designed and tested according to IEC 1010-1:1992
and other safety standards. Follow all warnings to ensure safe operation.
vi
About This Manual
This manual contains instructions for the 39 and 41B Power Harmonics
Testers (hereafter referred to as the Tester). All information applies to both
models unless otherwise indicated.
Uses for the Tester
You can use the Tester to measure voltage and curr ent i nputs at power line
and harmonic frequencies. Using these inputs, the Tester automatically
calculates power and a wide ran ge of other measurements useful in
determining harmonic distortion levels and sources. The Tester can display
power calculations in either a single-phase or a 3-phase readout.
These capabilities allow you to monitor power quality before and after an
installation, troubleshoot a power distribution system, and (with Model 41B)
print out or download data for additional analysis.
The Tester is both a harmonics measurement tool and a power meter or
digital multimeter. You can use the Tester to measure voltage events
(undervoltage, overvoltage, line outages, and neutral to ground levels),
current levels, or to measure power levels. Fundamental frequency
measurements (to 100 Hz) and harm oni c frequency measurements (to about 2
kHz) are also possible.
The Tes ter c an not measure fr equencie s above about 2 kHz. (Use the
ScopeMeter test tool to measure fast power transients.)
1
39/41B
Users Manual
Unpacking
The following items are included in your tester kit (see Figure 1):
• Model 39 Power Meter or Model 41B Power Harmonics Analyzer
• 80i-500s AC Current Pr obe
• TL-24 Test Leads
• TP-20 Test Probes
• AC-20 Test Clips
Your kit also includes the following printed materials:
• Users Manual ( th is book)
• Quick Reference Guide
• Warranty Registration Card
For Model 41B only, the following additional items are included. Refer to
Figure 2.
• RS-232 Serial Cable
• FlukeView 41 Win dows Software Disk
Check the contents of the box for completeness, noting any damage. If
something in the kit has been damaged or is missing, contact the supplier
immediately.
2
80i-500s
AC Current
Probe
AC-20
Test Clip
Unpacking
TL-24
Test Leads
(Set of two. Red and Black)
TP-20
Test Probe
Figure 1. Tester and Accessori es
41
®
POWER HARMONICS
ANALYZER
a2f.eps
3
39/41B
Users Manual
RS-232 Cable
Companion Software
3.5-Inch Floppy Disks (FlukeView 41)
a3f.eps
Figure 2. Additi onal Items (M odel 41B)
4
Terminology Used in This Manual
Terminology Used in This Manual
This manual uses the following standard terminology:
• “Mains” is line voltage or frequency.
• “φ1”, “φ2”, and “φ3” refer to the three current supply phases.
• “Delta”
• “Wye”
• “N” is Neutral.
•
e
• “AC Current Probe” or “Probe” refers to the 80i-500s, which can al so be
call ed a “cur rent clamp”.
D
.
Y
.
is Earth ground.
5
39/41B
Users Manual
Battery Considerations
New alkaline C cells typically provide more than 48 hours of continuous
operation. You can also use NiCad batteries. However, depending on batter y
condition, fully charged NiCad batteries provide 16 hours or less of
continuous operation.
b
Plan to replace the batteries as soon as possible after the
Refer to User Maintenance later in this manual for battery changing
instructions.
Note
After the Tester is dropped, it may not turn on. Check the batteries
to see if they are misaligne d or damaged. R e seat t he batt e rie s if t hey
are misaligned; replace the batt e ries if t hey are damaged.
symbol comes on.
Memory Retention
Whenever you rem ove power from the Tester ( p ressi ng O off, letting the
batteries run down, removing the batteries, or experiencing an automatic
power down), the Tester retains all essential operating information in
nonvolatile memory. Specifically, the Tester retains calibration accuracy,
power-up configuration information, and a ny stored waveforms (Model 41B).
However, if you remove power when Record is active, the Tester loses all
recor d ed values.
Automatic Power Down
If you do not press any keys for approximately 15 minutes, the Tester
normally powers down automatically. If Record is active, the Tester continues
to operate unattended as long as the battery condition allows.
The Tester returns to its power-up configuration whenever you turn it on.
If the Tester encounters a memory error at power-up, it automatically turns
itself off. Check the batteries and try turning the Tester on again. If this
problem per sists, contact a F luke Service Center .
6
Getting Acquainted with Your Tester
Getting Acquainted with Your Tester
While referring to Figure 3, perform the following key presses to familiarize
yourself with basic tester operations.
o
to turn the Tester on.
1.
2.
c
(brief press) and
C
(hold 1 second) to turn the backlight on or off.
3.
F
to select a measurement function (Volts, Amps, Watts).
M
4.
5.
<
F
R
6.
to select a screen mode (Waveform, Harmonics, Text ).
R
to start recording measurements
or
>
to select NOW, MAX, AVG, MIN recording.
to select a different measurement function while recording.
to exit recording.
o
to turn the Tester off.
<
or
>
to cha nge screen contrast .
7
39/41B
Users Manual
®
41
POWER HARMONICS
16
ANALYZER
3
5
2
4
a4f.eps
Figure 3. Get t i ng Acquai nted
8
Input Connections
Input Connections
Refer to Figure 4 for a view of the two-input measurement scheme. To
measure voltage, insert the red test lead in “V” and the black test lead in
“COM.” Curren t measu rement us es a BNC connector attach ed to “CURRENT
PROBE.” Connect “V” and “COM” to measure only voltage; connect
“CURRENT PROBE” to measure only current. Make all three connections for
power measurements.
Observe the following connection guidelines:
• Current
Clamp the Current Probe around the desired phase or neutral conductor.
Make sure the arrow on the probe points toward the load (phase) or the
source (neutral). The Tester is set up for use with an 80i-500s Curr ent
Probe. If you use another pr obe, you must make a selection change in t he
Configuration Screen.
• Voltage: 3-phase, 4-Wire
Connect the red test lead to the desired phase voltage; connect the black
test lead to neutral.
• Voltage: 3-phase, 3-Wire, example
Connect the r ed test lead to t he phase con d uctor u s ed by the Current
Probe; connect the black test lead to another phase.
D
Using the Voltage Test Leads
The TL-24 Test Lead and AC-20 Test Clip combination (Figure 1), which
all ows for hands-free volta ge measu rements, is preferred when you ar e also
using the Current Probe.
Note
Figure 4 shows suggested test lead and current probe usage.
9
39/41B
Users Manual
Using the Current Probe
The accuracy of current an d power readin gs depends on properly using the
80i-500s Current Probe. The accuracy specifications in this manual a ssume
that the Current Probe is used correctly.
• Always clamp the 80i-500s Curr en t Probe with the arrow pointing toward
the load (away from the source) for a phase measurement or toward the
G
source for a neu tra l meas u rement. Press
orientation. If the resulting VA Check Screen generally extends from the
lower left to the upper right of the screen, the Current Pr obe is connected
properly.
• Always clamp the Current Probe around a single conductor or parallel
conductors t hat are carrying current for the sam e pha se.
• Always center the conductor in the Current Probe alignment marks.
Line
to verify the Current Probe
10
Load
Red
Black
N
Figure 4. Measurem ent Connect i ons ( 1P)
POWER HARMONICS
ANALYZER
41
®
a5f.eps
Three-Phase Power M eas ur em ents
Three-Phase Power Measurements
Refer to Figures 5, 6, and 7 for various ways to measure total power in a
W 3
P
three-phase s ystem . The
calculation for the connection shown in Figure 5. All other screens and
functions show only single-phase data.
3C display screen shows the three-phase
Load
Red
Black
W
φ
1
φ
2
POWER HARMONICS
ANALYZER
41
®
1
φ
3
a74f.eps
Figure 5. Three-Phase M easur em ent Connect i ons (For Balanced Circuit s,
P
, 3-Conductor, D)
3
11
39/41B
Users Manual
Red
Load
Red
Black
φ
1
φ
2
POWER HARMONICS
ANALYZER
41
®
W
1
φ
3
W
PF =
= W1 + W
total
W1 + W
3
(VA
2
2
+ VA2)
1
/2
Figure 6. Three-Phase M easure ment, Balanced or Unbalanced
P
Connections (3
, 3-Conductor, D or Y)
12
W
POWER HARMONICS
ANALYZER
41
®
2
a6f.eps
Red
Three-Phase Power M eas ur em ents
φ1
POWER HARMONICS
ANALYZER
41B
®
W
1
φ2
Load
Red
Black
POWER HARMONICS
ANALYZER
41B
®
W
2
φ3
Red
Black
Black
W
= W1 + W2 + W
total
N
3
W
3
POWER HARMONICS
ANALYZER
41B
®
Figure 7. Three-Phase M easure ment, Balanced or Unbalanced
P
Connections (3
, 4-Conductor)
a7f.eps
13
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