Chroma 66203 User manual

Digital Power Meter
66203/66204
User’s Manual

Digital Power Meter
66203/66204
User’s Manual
Version 1.0
March 2014

ii
Legal Notices
The information in this document is subject to change without notice.
Chroma ATE INC. makes no warranty of any kind with regard to this manual, including, but
not limited to, the implied warranties of merchantability and fitness for a particular purpose.
Chroma ATE INC. shall not be held liable for errors contained herein or direct, indirect,
special, incidental or consequential damages in connection with the furnishing, performance,
or use of this material.
CHROMA ATE INC.
66 Hwaya 1st Rd., Kueishan Hwaya Technology Park, Taoyuan County 33383, Taiwan
Copyright Notices. Copyright 2014 Chroma ATE INC., all rights reserved. Reproduction,
adaptation, or translation of this document without prior written permission is prohibited,
except as allowed under the copyright laws.

iii
Warranty
All of Chroma’s instruments are warranted against defects in material and workmanship for a
period of one year from date of shipment. Chroma agrees to repair or replace any
assembly or component found to be defective, under normal use during this period.
Chroma’s obligation under this warranty is limited solely to repairing any such instrument,
which in Chroma’s sole opinion proves to be defective within the scope of the warranty when
returned to the factory or to an authorized service center. Purchaser is responsible for the
shipping and cost of the service item to Chroma factory or service center. Shipment should
not be made without prior authorization by Chroma.
This warranty does not apply to any products repaired or altered by persons not authorized
by Chroma, or not in accordance with instructions furnished by Chroma. If the instrument is
defective as a result of misuse, improper repair, or abnormal conditions or operations, repairs
will be billed at cost.
Chroma assumes no responsibility for its product being used in a hazardous or dangerous
manner either alone or in conjunction with other equipment. High voltage used in some
instruments may be dangerous if misused. Special disclaimers apply to these instruments.
Chroma assumes no liability for secondary charges or consequential damages and in any
event, Chroma’s liability for breach of warranty under any contract or otherwise, shall not
exceed the purchase price of the specific instrument shipped and against which a claim is
made.
Any recommendations made by Chroma regarding the use of its products are based upon
tests believed to be reliable; Chroma makes no warranty of the results to be obtained. This
warranty is in lieu of all other warranties, expressed or implied, and no representative or
person is authorized to represent or assume for Chroma any liability in connection with the
sale of our products other than set forth herein.
CHROMA ATE INC.
66 Hwaya 1st Rd., Kueishan Hwaya Technology Park,
Taoyuan County 33383, Taiwan
Tel: [phone]
Fax: [phone]
e-mail: [email protected]
http://www.chromaate.com

iv
Material Contents Declaration
The recycling label shown on the product indicates the Hazardous Substances contained in
the product as the table listed below.
: See <Table 1>.
: See <Table 2>.
<Table 1>
Hazardous Substances
Lead Mercury Cadmium Hexavalent
Chromium
Polybrominated
Biphenyls
Polybromodiphenyl
Ethers
Part Name
Pb Hg Cd Cr6+ PBB PBDE
PCBA O O O O O O
CHASSIS O O O O O O
ACCESSORY O O O O O O
PACKAGE O O O O O O
“O” indicates that the level of the specified chemical substance is less than the threshold level
specified in the standards of SJ/T-11363-2006 and EU 2005/618/EC.
“°” indicates that the level of the specified chemical substance exceeds the threshold level
specified in the standards of SJ/T-11363-2006 and EU 2005/618/EC.
Disposal
Do not dispose of electrical appliances as unsorted municipal waste, use separate collection
facilities. Contact your local government for information regarding the collection systems
available. If electrical appliances are disposed of in landfills or dumps, hazardous substances
can leak into the groundwater and get into the food chain, damaging your health and
well-being. When replacing old appliances with new one, the retailer is legally obligated to
take back your old appliances for disposal at least for free of charge.

v
<Table 2>
Hazardous Substances
Lead Mercury Cadmium Hexavalent
Chromium
Polybrominated
Biphenyls
Polybromodiphenyl
Ethers
Part Name
Pb Hg Cd Cr6+ PBB PBDE
PCBA °O O O O O
CHASSIS °O O O O O
ACCESSORY °O O O O O
PACKAGE O O O O O O
“O” indicates that the level of the specified chemical substance is less than the threshold level
specified in the standards of SJ/T-11363-2006 and EU 2005/618/EC.
“°” indicates that the level of the specified chemical substance exceeds the threshold level
specified in the standards of SJ/T-11363-2006 and EU 2005/618/EC.
1. Chroma is not fully transitioned to lead-free solder assembly at this moment; however,
most of the components used are RoHS compliant.
2. The environment-friendly usage period of the product is assumed under the operating
environment specified in each product’s specification.
Disposal
Do not dispose of electrical appliances as unsorted municipal waste, use separate collection
facilities. Contact your local government for information regarding the collection systems
available. If electrical appliances are disposed of in landfills or dumps, hazardous substances
can leak into the groundwater and get into the food chain, damaging your health and
well-being. When replacing old appliances with new one, the retailer is legally obligated to
take back your old appliances for disposal at least for free of charge.

vi

vii
Safety Summary
The following general safety precautions must be observed during all phases of operation,
service, and repair of this instrument. Failure to comply with these precautions or specific
WARNINGS given elsewhere in this manual will violate safety standards of design,
manufacture, and intended use of the instrument. Chroma assumes no liability for the
customer’s failure to comply with these requirements.
BEFORE APPLYING POWER
Verify that the power is set to match the rated input of this power
supply.
PROTECTIVE GROUNDING
Make sure to connect the protective grounding to prevent an electric
shock before turning on the power.
NECESSITY OF PROTECTIVE GROUNDING
Never cut off the internal or external protective grounding wire, or
disconnect the wiring of protective grounding terminal. Doing so will
cause a potential shock hazard that may bring injury to a person.
FUSES
Only fuses with the required rated current, voltage, and specified type
(normal blow, time delay, etc.) should be used. Do not use repaired
fuses or short-circuited fuse holders. To do so could cause a shock or
fire hazard.
DO NOT OPERATE IN AN EXPLOSIVE ATMOSPHERE
Do not operate the instrument in the presence of flammable gases or
fumes. The instrument should be used in an environment of good
ventilation.
DO NOT REMOVE THE COVER OF THE INSTRUMENT
Operating personnel must not remove the cover of the instrument.
Component replacement and internal adjustment can be done only by
qualified service personnel.

viii
Safety Symbols
DANGER – High voltage.
Explanation: To avoid injury, death of personnel, or damage to
the instrument, the operator must refer to an explanation in the
instruction manual.
High temperature: This symbol indicates the temperature is now
higher than the acceptable range of human. Do not touch it to
avoid any personal injury.
Protective grounding terminal: To protect against electrical
shock in case of a fault. This symbol indicates that the terminal
must be connected to ground before operation of equipment.
Functional grounding: To identify an earth (ground) terminal in
cases where the protective ground is not explicitly stated. This
symbol indicates the power connector does not provide
grounding.
Frame or chassis: To identify a frame or chassis terminal.
Alternating Current (AC)
Direct Current (DC) / Alternating Current (AC)
Direct Current (DC)
Push-on/Push-off power switch
WARNING
The WARNING sign denotes a hazard. It calls attention to a
procedure, practice, or the like, which, if not correctly performed
or adhered to, could result in personal injury. Do not proceed
beyond a WARNING sign until the indicated conditions are fully
understood and met.
CAUTION
The CAUTION sign denotes a hazard. It may result in personal
injury or death if not noticed timely. It calls attention to
procedures, practices and conditions.
The Notice sign denotes important information in procedures,
applications or the areas that require special attention. Be sure
to read it carefully.

ix
Revision History
The following lists the additions, deletions and modifications in this manual at each revision.
Date Version Revised Sections
Mar. 2014 1.0 Complete this manual.

Digital Power Meter 66203/66204 User’s Manual
xi
Table of Contents
1. Overview...............................................................................................................1-1
1.1 Introduction............................................................................................................1-1
1.2 Initial Inspection.....................................................................................................1-1
1.3 Ambient Environment ............................................................................................1-2
1.4 Power Line Connection .........................................................................................1-2
1.5 Fuse.......................................................................................................................1-3
1.6 Time for Warm-Up .................................................................................................1-4
1.7 Cleaning ................................................................................................................1-4
2. Specification ........................................................................................................2-1
2.1 Standard Specification...........................................................................................2-1
2.2 Common Specification...........................................................................................2-3
3. Panel Description ................................................................................................3-1
3.1 Front Panel ............................................................................................................3-1
3.2 Rear Panel.............................................................................................................3-3
4. Operation..............................................................................................................4-1
4.1 Preparation for Test...............................................................................................4-1
4.2 System Setup ........................................................................................................4-1
4.2.1 Checking the Firmware & Digital Version ......................................................4-1
4.2.2 Setting GPIB Address, Display Backlight & Sound........................................4-2
4.2.3 Storing & Recalling Setting File .....................................................................4-3
4.3 Connecting Test Device ........................................................................................4-4
4.3.1 Standard Connection .....................................................................................4-4
4.3.2 Efficiency Test for AC Motor Driver ...............................................................4-5
4.4 Computing Equation for Measurement Parameters ..............................................4-9
4.5 Setting Measurement Range...............................................................................4-12
4.5.1 Setting Voltage Range.................................................................................4-13
4.5.2 Setting Current Range .................................................................................4-14
4.5.3 Setting External Range................................................................................4-17
4.6 Setting Measurement Functions..........................................................................4-18
4.6.1 Limit .............................................................................................................4-19
4.6.2 Meas ............................................................................................................4-22
4.6.3 DC................................................................................................................4-44
4.7 Wiring Mode ........................................................................................................4-45
4.7.1 Selecting 1P2W Wiring Mode ......................................................................4-45
4.7.2 Selecting 1P3W Wiring Mode ......................................................................4-46
4.7.3 Selecting 3P3W Wiring Mode, Two-Wattmeter Method...............................4-46
4.7.4 Selecting 3P4W Wiring Mode, Three-Wattmeter Method............................4-47
4.7.5 Selecting 3P4W Wiring Mode, Three-Wattmeter Method............................4-48
4.8 Fans Inspection ...................................................................................................4-49
5. Using Remote Control.........................................................................................5-1
5.1 Overview................................................................................................................5-1
5.2 USB in Remote Control .........................................................................................5-1
5.3 The GPIB Capability of the Power Meter...............................................................5-2
5.4 Introduction to Programming .................................................................................5-2
5.4.1 Conventions...................................................................................................5-2
5.4.2 Data Formats .................................................................................................5-2
5.5 Basic Definition......................................................................................................5-3
5.5.1 Command Tree Table....................................................................................5-3
5.5.2 Program Headers ..........................................................................................5-4

Digital Power Meter 66203/66204 User’s Manual
xii
5.5.3 Program Message .........................................................................................5-5
5.5.4 Response Message .......................................................................................5-5
5.6 Traversal of the Command Tree............................................................................5-6
5.7 The Commands of the Power Meter......................................................................5-8
5.7.1 Standard Commands.....................................................................................5-8
5.7.2 Instrument Commands ................................................................................5-11
6. Status Reporting..................................................................................................6-1
6.1 Introduction............................................................................................................6-1
6.2 Register Information in Common...........................................................................6-1
6.2.1 Channel Status ..............................................................................................6-3
6.2.2 Channel Summary .........................................................................................6-3
6.2.3 Questionable Status ......................................................................................6-4
6.2.4 Output Queue ................................................................................................6-4
6.2.5 Standard Event Status...................................................................................6-4
6.2.6 Status Byte Register ......................................................................................6-5
6.2.7 Service Request Enable Register..................................................................6-5
Appendix A Using Control Signal Input/Output Terminal........................................A-1
Appendix B Circuit Diagram ....................................................................................... B-1
Appendix C Mapping Table for Displayed Letters ....................................................C-1
Appendix D Troubleshooting...................................................................................... D-1
Appendix E Specification Verification ....................................................................... E-1
Appendix F A662012 HV Measurement Kit ............................................................... F-1

Overview
1-1
1. Overview
1.1 Introduction
This manual covers the 66203 and 66204 Digital Power Meters that have 3 and 4 channels
respectively to test multiple UUTs at the same time reducing the testing time and improving
the productivity. The Digital Power Meter can also test the products with 3-phase power
system through the test parameters of voltage, current, power and power factor. It can test
the input and out power of a UUT at the same time and compute the efficiency easily via the
function of efficiency calculation.
The 66203 and 66204 Digital Power Meters have two internal shunts (low shunt and high
shunt) which are configured within 5mA~20A current range. They can be applied to low
and high power measurements comprehensively especially the highly accurate capability
equipped in testing the standby power for energy star. This Digital Power Meter also has
external sampling function to expand the current measurement range if the test current is
over the range of maximum 20Arms. Moreover, the Digital Power Meter is able to analyze
the voltage and current measurement for power quality test. Working with the exclusive
soft panel, the Digital Power Meter is able to create a complete test report and comply with
the power quality test standard.
The limit function utilized in production test is able to perform GO/NG judgment based on
the upper/lower limits for voltage, current and power total 16 parameters. In addition, the
measurement functions such as energy, inrush current and crest factor, etc. are also
available for use.
1.2 Initial Inspection
Before shipment, this Model 66203/66204 was inspected and found to be free of mechanical
and electrical defects. As soon as the instrument is unpacked, user should inspect for any
damage that may have occurred in transit. Save all packing materials in case the
instrument has to be returned. If damage is found, please file a claim with the carrier
immediately. Do not return the product to Chroma without prior approval.

Digital Power Meter 66203/66204 User’s Manual
1-2
1.3 Ambient Environment
1. Do not use the meter in a dusty or vibrating
location. Do not expose it to sunlight or
corrosive gas. Be sure that the ambient
temperature is 0°C ~ +40°C and the relative
humidity is 20% ~ 80%.
2. The meter has been carefully designed to
reduce the noise from the AC power source.
However, it should be used in a noise-free or as
low as possible environment. If the noise is
inevitable, please install a power filter.
3. The meter should be stored within the
temperature range of -40°C ~ +85°C. If the unit
is not to be in use for a long time, please store it
in its original or similar package and keep it from
direct sunlight and humidity place to ensure its
accuracy when using again.
1.4 Power Line Connection
Before plugging in the power cord, make sure the power switch is OFF and the power
voltage is within the labeled range. Please use the power supply frequency of 50Hz or 60Hz.
Keep away from the followings:
Dust
Direct Sunlight
66204
V
ibration Corrosive
Gas
Noise
Source
66204
Power Filter
P
lease install a power filter in
c
ase of interference from high
p
ow er noise.

Overview
1-3
Figure 1-1 AC INPUT Power Spec. Label
1.5 Fuse
The meter has one fuse installed on the rear panel. Please be aware of the following when
replacing it:
(1) Be sure to turn off the power and unplug the power cord before changing the fuse.
(2) Since visual check cannot make sure the fuse to be used is appropriate, it is necessary
to test its resistance to see if it is below 2Ωwhich is normal for usage.
Table 1-1 Specification of Fuse
Specification
Power Fuse Slow blow 2.5A / 250V
WARNING To prevent fire from occurring it is required to use the fuse of same type
and same specification for replacement.
AC INPUT Power
Specification

Digital Power Meter 66203/66204 User’s Manual
1-4
1.6 Time for Warm-Up
All functions of this meter are active when it is powered on; however, to meet the accuracy
listed in the specification it is suggested to warm-up for at least 30 minutes.
1.7 Cleaning
Ensure all cables and power cords are removed before cleaning the power meter. Use a
dry cloth to clean the chassis. As the rear panel of the power meter connects to the internal
circuit board, to avoid damaging the device due to short circuit internally it is prohibited to
wipe it with damp cloth.

Specification
2-1
2. Specification
2.1 Standard Specification
Functions
Model 66203 66204
Channel 3 Channel 4 Channel
Measurement
Parameters
Vrms, Vpk+, Vpk-, VTHD, Irms, Ipk+, Ipk-, ATHD, Is, CFi, W, VA,
VAR, PF, F, Energy
Input
Measurement Ranges
Voltage
Measurement
Ranges (rms)
15V/30V/60V/150V/300V/600V/Auto
The crest factor of all measurement ranges is 2.
Internal current sensor
0.005A/0.02A/0.05A/0.2A/0.5A/2A/5A/20A/Auto, when shunt range is
auto.
0.005A/0.02A/0.05A/0.2A/Auto, when shunt range is low.
0.5A/2A/5A/20A/Auto, when shunt range is high.
The crest factor of all measurement ranges is 4.
External current sensor
Current
Measurement
Ranges (rms)
10mV/25mV/50mV/100mV/Auto
The crest factor of all measurement ranges is 4.
Power Measurement
Ranges 75mW/…/12KW, 48 ranges
Input Impedance
Voltage
Measurement
Range
Approx. 2MΩ
Current
Measurement
Ranges
Approx. 500mΩ(Low Shunt Range)
Approx. 20mΩ(High Shunt Range)
External
Measurement Range Approx. 100kΩ
Bandwidth
Approx. 60kHz
Protection
Over Voltage
Range(OUR) When the measured value exceeds “Voltage Range × CF”
Over Current
Range(OCR) When the measured value exceeds “Current Range × CF”
Over Current
Protection (OCP)
OCP will occur when the following measured current conditions are
exceeded.
1. 1.1Arms for low shunt range
2. 23Arms or 80Apeak for high shunt range
3. Burnt out of the 25A fast acting fuse (the current measurement
loop will become open circuit)

Digital Power Meter 66203/66204 User’s Manual
2-2
Accuracy
Requirements
1. Temperature: 23°C±5°C
2. Humidity: 80%RH.
3. Input waveform: Sine wave
4. Power factor: 1.
5. Warm-up time: ≧30 minutes.
6. Connect the power cord to a three-prong power outlet with proper grounding.
Voltage / Harmonics Specifications
DC, 10Hz-1kHz 1kHz-10kHz Temperature Coefficient
% reading + % range (ppm of reading + ppm of range) /°C
0.1+0.08 (0.1+0.05*kHz)+0.08 120+150
Note: 1. The temperature coefficient accuracy is used for the situation when the
ambient is beyond the accuracy-permitted temperature. This accuracy should
be added into the voltage accuracy written above.
2. The permitted frequency of voltage harmonics is up to 6 kHz.
Current / Harmonics Specifications
DC, 10Hz-1kHz 1kHz-10kHz Temperature Coefficient
% reading + % range (ppm of reading + % of range) /°C
0.1+0.1 (0.1+0.05*kHz)+0.1 120+0.05
Note: 1. When measuring current, the voltage of 1/10 larger than the voltage range has
to be inputted for frequency generation, voltage calculation and current
measurement.
2. The temperature coefficient accuracy is used for the situation when the
ambient is beyond the accuracy-permitted temperature. This accuracy should
be added into the voltage accuracy and the current accuracy written above.
3. The power meter should be in a thermally stable environment with power
turned-on for at least 30 minutes before performing auto-calibration (Cali).
4. The permitted frequency of current harmonics is up to 6 kHz.
Specifications of the External Current Sensor input
DC, 10Hz-1kHz 1kHz-10kHz Temperature Coefficient
% reading + % range (ppm of reading + % of range) /°C
0.1+0.1 (0.1+0.05*kHz)+0.1 120+0.05
Note: Add DC values 50uV to accuracies for the external current sensor range.
Active Power Specifications
DC 47Hz-63Hz 10Hz-1kHz 1kHz-10kHz
% reading+% range
0.1+0.1 0.1+0.1 0.1+0.18 (0.1+0.1*kHz)+0.18
Note: 1. The temperature coefficient is same as the temperature coefficient for voltage
and current.
2. Influence of power factor: Add the power reading × (0.0015/PF*Hz)% when
0<PF<1
Power Factor Specifications
Range Range : 0.0000-1.0000
Accuracy 0.001+(15ppm/PF)*Hz