xx
Ballast-CT
Measurement Accessory for Tektronix Power Analyzers
ZZZ
Instruction Manual
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previously published material. Specifications and price change privileges reserved.
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ducts are covered by U.S. and foreign patents, issued and pending. Information in this publication supersedes that in all
Contacting Tektronix
Tektronix, Inc.
14150 SW Karl Braun Drive
P.O. Box 500
Beaverton, OR 97077
USA
For product i nformation, sales, service, and technical support:
In North America, call 1-800-833-9200.
Worldwide, visit www.tektronix.com to find contacts in your area.
Warranty
Tektronix warrants that this product will be free from defects in materials and workmanship for a period of one (1) year from the date of
shipment. If any such product proves defective during this warranty period, Tektronix, at its option, either will repair the defective
product without charge for parts and labor, or will provide a replacement in exchange for the defective product. Parts, modules and
replacement products used by Tektronix for warranty work may be new or reconditioned to like new performance. All replaced
parts, modules and products become the property of Tektronix.
In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration of the warranty period
and make suitable arrangements for the performance of service. Customer shall be responsible for packaging and shipping the
defective product to the service center designated by Tektronix, with shipping charges prepaid. Tektronix shall pay for the return of the
product to Customer if the shipment is to a location within the country in which the Tektronix service center is located. Customer shall
be responsible for paying all shipping charges, duties, taxes, and any other charges for p roducts returned to any other locations.
This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate maintenance and
care. Tektronix shall not be obligated to furnish service under this warranty a) to repair damage resulting from attempts by personnel
other than Tektronix representatives to install, repair or service the product; b) to repair damage resulting from improper use or
connection to incompatible equipment; c) to repair any damage or malfunction caused by the use of non-Tektronix supplies; or
d) to service a product that has been modified or integrated with other products when the effect of such modification or integration
increases the time or difficulty of servicing the product.
THIS WARRANTY IS GIVEN BY TEKTR ON IX WITH RES PEC T TO THE PRODUCT IN LIEU OF ANY OTHER WARRANTIES,
EXPRESS OR IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE. TEKTRONIX' RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS
IS THE SOLE AND EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY. TEKTRONIX
AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH
DAMAGES.
[W2 – 15AUG04]
Table of Contents
Important safety information .......................................................................................................... iii
General safe
Service safety summary ......................................................................................................... iv
Terms in this manual .. . . . ... . ... . ... . ... . ... . . . ... . ... . ... . ... . ... . ... . ... . . . ... . ... . ... . ... . ... . ... . ... . . . ... . ... . ... . ... . ... . .. v
Symbols and
Compliance information ............................................................................................................... vi
Safety compliance................................................................................................................vi
Environme
Preface................................................................................................................................. ix
Ballast-CT.............................................................................................................................. 1
Features .......................................................................................................................... 1
Description ....................................................................................................................... 1
Connecting the Ballast-CT . .. ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . . . ... .. ... . ... . ... . ... . ... . . . ... . ... .. ... . ... . .. 2
Measurin
Measuring high-current fluorescent tubes ... . ... . ... . ... . ... . . . ... . ... . ... . ... . . . ... . ... . ... . ... . . . ... . ... . ... . ... . . . ... . ... . .. 4
Measuring a two-tube fl uorescentlightingballastcircuit ....................................................................... 5
Measuri
Specifications..................................................................................................................... 7
ty summary......................................................................................................... iii
terms on the product .. . ... . ... . ... . ... . . . ... . ... . ... . ... . . . ... . ... . ... . ... . . . ... . ... . ... . ... . . . ... . ... . ... . ... . . . . v
ntal considerations ................................................................................................. viii
g low-current fluorescent tubes ....................................................................................... 3
ng low-voltage lighting circuits.......................................................................................... 6
Table of Content
s
Instruction Manual i
Table of Content
s
ii Instruction Manual
Important safet
y information
Important saf
This manual contains information and warnings that must be followed by the user for safe operation and to keep the
product in a safe condition.
To safely perform service on this product, additional information is provided at the end of this section. (See page iv,
Service safety summary.)
ety information
General safety summary
Use the prod
or any products connected to it. Carefully read all instructions. Retain these instructions for future reference.
Comply with local and national safety codes.
For correct and safe operation of the product, it is essential that you follow generally accepted safety procedures in addition
to the safety precautions specified in this manual.
The product is designed to be used by trained personnel only.
Only qualified personnel who are aware of the hazards involved should remove the cover for repair, maintenance, or
adjustme
Before us
This pro
uct only as specified. Review the following safety precautions to avoid injury and prevent damage to this product
nt.
e, always check the product with a known source to be sure it is operating correctly.
duct is not intended for detection of hazardous voltages.
Use pers
While us
component manuals for warnings and cautions related to operating the system.
When incorporating this equipment into a system, the safety of that system is the responsibility of the assembler of the system.
onal protective equipment to prevent shock and arc blast injury where hazardous live conductors are exposed.
ing this product, you may need to access other parts of a larger system. Read the safety sections of the o ther
To avoid fire or personal injury
Connect and disconnect properly. Do not connect or disconnect probes or test leads while they are connected
to a voltage source.
Use only insulated voltage probes, test leads, and adapters supplied with the product, or indicated by Tektronix to be
suitable for the product.
Observe all terminal ratings. To avoid fire or shock hazard, observe all ratings and markings on the product. Consult
roduct manual for further ratings information before making connections to the product. Do not exceed the Measurement
the p
Category (CAT) rating and voltage or current rating of the lowest rated individual component of a product, probe, or
accessory. Use caution when using 1:1 test leads because the probe tip voltage is directly transmitted to the product.
Do not apply a potential to any terminal, including the common terminal, that exceeds the maximum rating of that terminal.
Do not operate without covers. Do not operate this product with covers or panels removed, or with the case open.
Hazardous voltage exposure is possible.
oid exposed circuitry.
Av
Instruction Manual iii
Do not touch exposed connections and components when power is present.
Important safet
Do not operate with suspected failures. If you suspect that there is damage to this product, have it inspected by
qualified servi
y information
ce personnel.
Disable the pr
product to prevent its further operation.
Before use, inspect v oltage probes, test leads, and accessories for mechanical damage and replace when damaged. Do not
use probes or test leads if they are damaged, if there is exposed metal, or if a wear indicator shows.
Examine the exterior of the product before you use it. Look for cracks or missing pieces.
Use only specified replacement parts.
oduct if it is damaged. Do not use the product if it is damaged or operates incorrectly. Clearly mark the
Do not operate in wet/damp conditions. Be aware that condensation may occur if a unit is moved from a c old to a
warm environment.
Do not operate in an explosive atmosphere.
Keep product surfaces clean and dry.
Probes an
Remove all probes, test leads and accessories that are not in use.
Use only correct Measurement Category (CAT), voltage, temperature, altitude, and amperage rated probes, test leads,
and adapters for any measurement.
d t est leads
Remove the input signals before you clean the product.
Servicesafetysummary
The Service safety summary section c ontains additional information required to safely perform service on the product. Only
qualified personnel should perform service procedures. Read this Service safety summary and the General safety summary
e performing any service procedures.
befor
To avoid electric shock. Do not touch exposed connections.
t service alone.
Do no
rendering first aid and resuscitation is present.
Use care when servicing with power on. Dangerous voltages or currents may exist in this product. Disconnect test
leads before removing protective panels, soldering, or replacing components.
Do not perform internal service or adjustments of this product unless another person capable of
iv Instruction Manual
Terms in this manual
These terms may appear in this manual:
WARNING. Warning statements identify conditions or practices that could result in injury or loss of life.
CAUTION. Caution statements identify conditions or practices that could result in damage to this product or other property.
Symbols and terms on the product
These terms may appear on the product:
DANGER indicates an injury hazard immediately accessible as you read the marking.
WARNING indicates an injury hazard not immediately accessible as you read the marking.
CAUTION indicates a hazard to property including the product.
Important safet
y information
When this symbol is marked on the product, be sure to consult the manual to find out the nature of the
potential hazards and any actions which have to be taken to avoid them. (This symbol may also be used to
refer the user to ratings
The following symbol(s) m ay appear on the product:
in the manual.)
Instruction Manual v
Compliance info
rmation
Compliance in
This section lists the safety and environmental standards with which the instrument complies.
Safety compliance
This section lists the safety standards with which the product complies and other safety compliance information.
EU declaration of conformity – low voltage
Compliance was demonstrated to the following specification as listed in the Official Journal of the European Union:
Low Voltage Directive 2006/95/EC.
EN 61010-1. Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use – Part
1: General R equirements.
EN 61010-2-030. Safety Requirements for Electrical Equipment for M easurement, Control, and Laboratory Use – Part
2-030: Particular requirements for testing and measuring circuits.
U.S. nationally recognized testing laboratory listing
UL 61010-1. Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use – Part
1: General R equirements.
formation
UL 61010-2-030. Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use – Part
Particular requirements for testing and measuring circuits.
2-030:
Canadian certification
CAN/CSA-C22.2 No. 61010-1. Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory
Use – Part 1: General Requirements.
CAN/CSA-C22.2 No. 61010-2-030. Safety Requirements for Electrical Equipment for M easurement, Control, and
Laboratory Use – Part 2-030: Particular requirements for testing and measuring circuits.
Additional compliances
61010-1. Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use – Part
IEC
1: General R equirements.
IEC 61010-2-030. Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use – Part
2-030: Particular requirements for testing and measuring circuits.
uipment type
Eq
Test and measuring equipment.
vi Instruction Manual
Compliance info
Safety class
Class 2 Double Insulated Product.
Pollution degree descriptions
A measure of the contaminants that could occur in the environment around and within a product. Typically the internal
environment
for which they are rated.
Pollution degree 1. No pollution or only dry, nonconductive pollution occurs. Products in this category are generally
encapsulated, hermetically sealed, or located in clean rooms.
Pollution degree 2. Normally only dry, nonconductive pollution occurs. Occasionally a temporary conductivity that is
caused by c
occurs only when the product is out of service.
Pollution degree 3. Conductive pollution, or dry, nonconductive pollution that bec omes conductive due to condensation.
These are sheltered locations where neither temperature nor humidity is controlled. The area is protected from direct
sunshine
Pollutio
outdoor locations.
inside a product is considered to be the same as the external. Products should be used only in the environment
ondensation must be expected. This location is a typical office/home environment. Temporary condensation
, rain, or direct wind.
n degree 4. Pollution that generates persistent conductivity through conductive dust, rain, or snow. Typical
rmation
Pollution degree rating
Pollution degree 2 (as defined in IEC 61010-1). Rated for indoor, dry location use only.
Measurement and overvoltage category descriptions
Measurement terminals on this product may be rated for measuring mains voltages from one or more of the following
ories ( see specific ratings marked on the product and in the manual).
categ
ory II. Circuits directly connected to the building wiring at utilization points (socket outlets and similar points).
Categ
gory III. In the building wiring and distribution system.
Cate
gory IV. At the source of the electrical supply to the building.
Cate
NOTE. Only mains power supply circuits have a n overvoltage category rating. Only measurement circuits have a
measurement category rating. Other circuits within the product do not have either rating.
Instruction Manual vii
Compliance info
rmation
Environmental considerations
This section provides information about the environmental impact of the product.
Product end-of-life handling
Observe the following guidelines when recycling an instrument or component:
Equipment recycling. Production of this equipment required the extraction and use of natural resources. The equipment
may c ontain substances that could be harmful to the environment or human health if improperly handled at the product’s
end of life. To avoid release of such substances into the environment and to reduce the use of natural resources, we
encourage you to recycle this product in an appropriate system that will ensure that most of the materials are reused
or recycled appropriately.
This symbol indicates that this product complies with the applicable European Union requirements according
to Directives 2002/96/EC and 2006/66/EC on waste electrical and electronic equipment (WEEE) and
batteries. For information about recycling options, check the Support/Service section of the Tektronix Web
site (www.tektronix.com).
Restriction of hazardous substances
This product is classified as an industrial monitoring and control instrument accessory, and is not required to comply with the
substance restrictions of the recast RoHS Directive 2011/65/EU until July 22, 2017.
viii Instruction Manual
Preface
This manual describes the B allast-CT measurement accessory, and how to connect it to your circuit and to Tektronix
Power Analyzers.
Preface
Instruction Manual ix
Preface
x Instruction Manual
Ballast-CT
The Tektronix Ballast-CT simplifies the measurement of output power and tube current in high-frequency electronic lighting
ballasts. This device is specifically designed for high-frequency lighting applications. When used in conjunction with
a Tektronix PA1000 or PA4000 power analyzer, the free-standing Ballast-CT module provides a convenient and accurate
solution to taking power measurements in lighting ballast circuits.
Features
Convenience: No need to feed cables through a CT core
High accuracy: Close-coupled, trifilar-wound toroidal design
No cable positioning/contact error
Wide bandwidth: High frequency design provides 5 kHz to 1 MHz bandwidth
Wide current range: 5 mA to 1 A is compatible with many modern ballasts
Description
Ballast-CT
The Ballast-CT is an enclosed current-sensing transformer with 4 mm terminals that connect between your lighting circuit
and Tektronix power analyzers. Circuit connections are made with the high-quality safety leads that are supplied with the
analyzers. Additional lead sets are available; see your power analyzer manual for ordering information.
Figure 1: Ballast-CT connections
1. Ballast and lamp terminals — these terminals are connected in series with your lighting circuit to establish a measurement
sense point for the power analyzer.
2. Output to power analyzer — the AHI and ALO terminals typically connect to the AHI and ALO current inputs on the power
analyzer. For measurement currents less than 1 A, the AHI output terminal is connected to the A1A input on the analyzer.
Instruction Manual 1
Ballast-CT
Connecting the Ballast-CT
Use the connection sequence shown below to make the typical connections in your Ballast-CT circuit. Connections for
specific applications are shown for the PA1000 and PA4000 power analyzers on the following pages.
CAUTION. The Ballast-CT should only be used with Tektronix power analyzers.
1. Using the test leads provided with the Tektronix power analyzer, make the current connections between the Ballast-CT
and the AHI and ALO input jacks on the power analyzer.
CAUTION. Do not operate the Ballast-CT without first making the connections between the Amps Hi and LO connections on
the Ballast-CT and the corresponding connections on the Analyzer.
2. Make the connections from your circuit to the Ballast-CT.
NOTE. Due to the high frequency nature of ballasts, the inductance of the leads can have an effect on measurements. To
reduce the effect of the lead inductance, lead length should be kept to a minimum, and the leads should be twisted together.
3. Power on the device under test and begin taking measurements.
Figure 2: Connection sequence
2 Instruction Manual
Measuring low-current fluorescent tubes
Using either a PA1000 or PA4000 power analyzer and a single Ballast-CT, tube currents up to 500 mA may be measured as
shown in the figure below.
Ballast-CT
Figure 3: Low-current (<500 mA) connections
Instruction Manual 3
Ballast-CT
Measuring high-current fluorescent tubes
Using either a PA1000 or PA4000 and a single Ballast-CT, tube currents of up to 1 A may be measured as shown in the
figure below.
Figure 4: High-current connections (up to 1 A)
4 Instruction Manual
Measuring a two-tube fluorescent lighting ballast circuit
With two Ballast-CT units and a 3-channel PA4000 power analyzer, it is simple to make efficiency measurements, even with
a complex lighting configuration.
Ballast-CT
Figure 5: Two-tube fluorescent lighting connections
Instruction Manual 5
Ballast-CT
Measuring low-voltage lighting circuits
The benefits provided by the Ballast-CT of isolating the common mode switching voltages also apply to low-voltage lighting
systems. A typical connection setup is shown below.
Figure 6: Low-voltage lighting connections
6 Instruction Manual
Specifications
Table 1: Electrical specifications (typical)
Characteristic Description
Operating current range
Operating frequency
Accuracy
Amplitude
Phase
Maximum voltage, tube/ballast to
output or Earth
Isolation, tube/ballast to output
Table 2: Physical specifications
5mAto1A
5kHzto1MHz
better than 1% (up to 500 kHz)
better than 1 degree (up to 500 kHz)
600 V
1kVac
,CATII
RMS
RMS
Ballast-CT
eristic
Charact
Dimensions
Height
Width
Depth
Weight
Descrip
41 mm (1.6 in)
65 mm (2.6 in)
120 mm (4.7 in)
200 gms (7 oz)
tion
Table 3: Environmental specifications
racteristic
Cha
Temperature
Operating 0 ºC to 40 ºC (32 °F to 104 °F)
Nonoperating
Humidity, operating
Altitude, operating
cription
Des
-20ºCto+60ºC(-4°Fto140°F)
80% for temperatures up to 31 °C (88 °F), decreasing linearly to 50 % relative
umidity at 40 °C (104 °F)
h
Up to 2000 m (6562 ft)
Instruction Manual 7
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