BK Precision 5335B User Manual

5335B

Power Meter

User Manual

Safety Summary

The following safety precautions apply to both operating and maintenance personnel and must be followed during all phases of operation, service, and repair of this instrument.

Before applying power to this instrument:

• Read and understand the safety and operational information in this manual.

• Apply all the listed safety precautions.

• Verify that the voltage selector at the line power cord input is set to the correct line voltage. Operating the instrument at an incorrect line voltage will void the warranty.

• Make all connections to the instrument before applying power.

• Do not operate the instrument in ways not specied by this manual or by B&K Precision.

Failure to comply with these precautions or with warnings elsewhere in this manual violates the safety standards of design, manufacture, and intended use of the instrument. B&K Precision assumes no liability for a customer’s failure to comply with these requirements.

Category rating

The IEC 61010 standard denes safety category ratings that specify the amount of electrical energy available and the voltage impulses that may occur on electrical conductors associated with these category ratings. The category rating is a Roman numeral of I, II, III, or IV. This rating is also accompanied by a maximum voltage of the circuit to be tested, which denes the voltage impulses expected and required insulation clearances. These categories are:

Category I (CAT I): Measurement instruments whose measurement inputs are not intended to be connected

to the mains supply. The voltages in the environment are typically derived from a limited-energy transformer or a battery.

Category II (CAT II): Measurement instruments whose measurement inputs are meant to be connected to the

mains supply at a standard wall outlet or similar sources. Example measurement environments are portable tools and household appliances.

Category III (CAT III): Measurement instruments whose measurement inputs are meant to be connected to

the mains installation of a building. Examples are measurements inside a building’s circuit breaker panel or the wiring of permanently-installed motors.

Category IV (CAT IV): Measurement instruments whose measurement inputs are meant to be connected to

the primary power entering a building or other outdoor wiring.

Do not use this instrument in an electrical environment with a higher category rating than what is specied in this manual for this instrument.

You must ensure that each accessory you use with this instrument has a category rating equal to or higher than the instrument’s category rating to maintain the instrument’s category rating. Failure to do so will lower the category rating of the measuring system.

Electrical Power

This instrument is intended to be powered from a CATEGORY II mains power environment. The mains power should be 115 V RMS or 230 V RMS. Use only the power cord supplied with the instrument and ensure it is appropriate for your country of use.

Ground the Instrument

To minimize shock hazard, the instrument chassis and cabinet must be connected to an electrical safety ground. This instrument is grounded through the ground conductor of the supplied, three-conductor AC line power cable. The power cable must be plugged into an approved three-conductor electrical outlet. The power jack and mating plug of the power cable meet IEC safety standards.

Do not alter or defeat the ground connection. Without the safety ground connection, all accessible conductive parts (including control knobs) may provide an electric shock. Failure to use a properly-grounded approved outlet and the recommended three-conductor AC line power cable may result in injury or death.

Unless otherwise stated, a ground connection on the instrument’s front or rear panel is for a reference of potential only and is not to be used as a safety ground. Do not operate in an explosive or ammable atmosphere.

Do not operate the instrument in the presence of ammable gases or vapors, fumes, or nely-divided particulates.

The instrument is designed to be used in oce-type indoor environments. Do not operate the instrument

• In the presence of noxious, corrosive, or ammable fumes, gases, vapors, chemicals, or nely-divided particulates.

• In relative humidity conditions outside the instrument’s specications.

• In environments where there is a danger of any liquid being spilled on the instrument or where any liquid can condense on the instrument.

• In air temperatures exceeding the specied operating temperatures.

• In atmospheric pressures outside the specied altitude limits or where the surrounding gas is not air.

• In environments with restricted cooling air ow, even if the air temperatures are within specications.

• In direct sunlight.

This instrument is intended to be used in an indoor pollution degree 2 environment. The operating temperature range is 0◦C to 40◦C and 20% to 80% relative humidity, with no condensation allowed. Measurements made by this instrument may be outside specications if the instrument is used in non-oce-type environments. Such environments may include rapid temperature or humidity changes, sunlight, vibration and/or mechanical shocks, acoustic noise, electrical noise, strong electric elds, or strong magnetic elds.

Do not operate instrument if damaged

If the instrument is damaged, appears to be damaged, or if any liquid, chemical, or other material gets on or inside the instrument, remove the instrument’s power cord, remove the instrument from service, label it as not to be operated, and return the instrument to B&K Precision for repair. Notify B&K Precision of the nature of any contamination of the instrument.

iii

Clean the instrument only as instructed

Do not clean the instrument, its switches, or its terminals with contact cleaners, abrasives, lubricants, solvents, acids/bases, or other such chemicals. Clean the instrument only with a clean dry lint-free cloth or as instructed in this manual. Not for critical applications

This instrument is not authorized for use in contact with the human body or for use as a component in a life-support device or system.

Do not touch live circuits

Instrument covers must not be removed by operating personnel. Component replacement and internal adjustments must be made by qualied service-trained maintenance personnel who are aware of the hazards involved when the instrument’s covers and shields are removed. Under certain conditions, even with the power cord removed, dangerous voltages may exist when the covers are removed. To avoid injuries, always disconnect the power cord from the instrument, disconnect all other connections (for example, test leads, computer interface cables, etc.), discharge all circuits, and verify there are no hazardous voltages present on any conductors by measurements with a properly-operating voltage-sensing device before touching any internal parts. Verify the voltage-sensing device is working properly before and after making the measurements by testing with

known-operating voltage sources and test for both DC and AC voltages. Do not attempt any service or adjustment unless another person capable of rendering rst aid and resuscitation is present.

Do not insert any object into an instrument’s ventilation openings or other openings.

Hazardous voltages may be present in unexpected locations in circuitry being tested when a fault condition in the circuit exists.

Fuse replacement must be done by qualied service-trained maintenance personnel who are aware of the instrument’s fuse requirements and safe replacement procedures. Disconnect the instrument from the power line before replacing fuses. Replace fuses only with new fuses of the fuse types, voltage ratings, and current ratings specied in this manual or on the back of the instrument. Failure to do so may damage the instrument, lead to a safety hazard, or cause a re. Failure to use the specied fuses will void the warranty.

Servicing

Do not substitute parts that are not approved by B&K Precision or modify this instrument. Return the instrument to B&K Precision for service and repair to ensure that safety and performance features are maintained.

For continued safe use of the instrument

• Do not place heavy objects on the instrument.

• Do not obstruct cooling air ow to the instrument.

• Do not place a hot soldering iron on the instrument.

• Do not pull the instrument with the power cord, connected probe, or connected test lead.

• Do not move the instrument when a probe is connected to a circuit being tested.

Safety Symbols

DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury.

WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury

CAUTION indicates a hazardous situation which, if not avoided, will result in minor or moderate injury

A Caution. Refer to the text near the symbol.

Electric Shock hazard

Alternating current (AC)

Chassis ground

Earth ground

On (Power). This is the In position of the power switch when instrument is ON.

O (Power). This is the Out position of the power switch when instrument is OFF.

NOTICE is used to address practices not related to physical injury.

Contents vi

1 General Information 1

1.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.2 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.3 Rear Panel Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.4 Power Line Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.4.1 Fuse Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.4.2 Power-up Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2 Menu 5

2.1 MENU > SYSTEM menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.1.1 System Information Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.1.2 Communication Conguration Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.1.3 System Conguration Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.1.4 Self Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.1.5 System Initialize Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.2 MENU > SETUP menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.2.1 Averaging Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.2.2 External Sensor Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.2.3 Other settings: Filter and Crest Factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.2.4 Inrush Measurement Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.3 CAL ZERO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.4 RATIO SET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3 External Current Sensor 17

4 Measurement Setup 18

4.0.1 Crest factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.0.2 Set Measurement Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.1 Voltage and current range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4.1.1 Fixed range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4.1.2 Auto Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4.2 Measurement interval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

4.3 Filter and Crest Factor Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

4.3.1 Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4.4 Averaging Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

4.4.1 Index averaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

4.4.2 Linear averaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

4.4.3 Harmonic measurement averaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

5 Meter Display 24

5.0.1 Operation steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

CONTENTS vii

6 Waveform Display Function 27

6.0.1 Trigger Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

6.1 Trigger Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

6.1.1 External trigger input (Ext) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

7 Harmonic Measurement Function 30

7.1 Bar Graph Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

7.2 List Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

7.3 Setup Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

7.3.1 Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

7.3.2 Distortion factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

7.3.3 PLL source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

8 Integral Operation Function 36

8.1 Introduction of soft keys on the interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

8.2 Integral measurement display information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

8.2.1 Integral operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

8.3 Specication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

8.4 Setting of Integral Measurement Conguration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

8.4.1 Parameter descriptions: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

8.5 Integration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

9 Remote Operation 42

9.1 RS-232 Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

9.1.1 RS-232 troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

9.1.2 RS-232 Communication settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

9.2 USB interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

9.3 GPIB interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

9.4 LAN interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

10 Specications 46

11 Routine Maintenance 50

11.1 Self-inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

11.2 Error Information References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

11.2.1 Prompt Message List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

11.2.2 Error information list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

11.3 Daily maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

11.3.1 Equipment cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

11.3.2 Initialize . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

11.4 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

12 LIMITED THREE-YEAR WARRANTY 55

13 Service Information 56

Chapter 1

General Information

Note: The contents of this manual and included specications are subject to change go to for the latest version.

The BK5335B power meter measures AC and DC inputs up to 600Vrms and 20Arms from DC to 100kHz. It measures voltage, current, power, frequency, power factor, phase and harmonic parameters up to the 50th order. Remote control is available over USB, GPIB, RS232 and LAN communication interfaces. Voltage and current measurement precision is nominally 0.1%. See Figure 1.1 for a view and details of the front panel.

1.1 Features

• 4.3-inch color LCD

• Congurable display of measurements in 3 formats

• Input range: 600Vrms/20Arms from DC to 100kHz

• Voltage, current, power, harmonics and other parameters are measured at the same time simultaneously

• Up to 0.1% voltage and current measurement accuracy

• Harmonic measurement up to the 50th-order harmonic

• Screen captures are saved to USB via the front panel connector

• Integration measurement of power produced or consumed

• Frequency measurement

• Remote control via USB, GPIB, RS232 and LAN communication interfaces

CHAPTER 1. GENERAL INFORMATION 2

1.2 Front Panel

Figure 1.1: Front Panel

Power Button Rotary Knob

4.3” LCD Arrow Keys

USB Soft-keys

Main Functions Soft-keys

Menu, Enter, ESC Print (Screen Capture)

Key Name and function

Waveform Display key: press to view waveforms. See Chapter 6

Harmonic Measurement key: For viewing harmonic measurements. See Chapter 7

Basic Measurement key: The normal measurement screen. See Chapter 4

Integral Measurement key: Measurements over time. See Chapter 8

Menu key, Press to view and congure settings. See Chapter 2

Enter key: Press to commit a setting or value.

Image Save key: press to save a hardcopy of the screen to the USB host port on the front panel.

CHAPTER 1. GENERAL INFORMATION 3

1.3 Rear Panel Summary

Figure 1.2: Rear View

GPIB Connector AC Line

LAN Connector External Current Sensor

USB Connector Voltage Input

RS-232 Connector Current Shunt Input

Synchronization BNC

1.4 Power Line Connection

Input power requirements:

AC Voltage 110V ±10% or 220V ±10%

Frequency 47Hz – 63Hz

1.4.1 Fuse Requirements

An AC input fuse is necessary when powering the instrument. Refer to Table 1.1 for the fuse requirements.

1.4.1.1 Fuse Replacement

1. Disconnect the power cord.

CHAPTER 1. GENERAL INFORMATION 4

Model Fuse Specication (110V) Fuse Specication (220V)

5335B T 10A, 250 V T 6.3A, 250V

Table 1.1: Required Fuses

Figure 1.3: Fuse Holder

2. Locate the fuse box in the rear panel, beneath the AC power socket. Figure 1.3

3. With a small at blade screwdriver, insert the blade into the fuse box slit to pull and slide out the fuse box.

4. Pull out the fuse inside to check and/or replace with the appropriate fuse for the line voltage used.

5. Insert the fuse in the same location.

1.4.2 Power-up Sequence

Connect AC power cord to the AC receptacle in the rear panel and press the power switch to the (ON) position to turn ON the instrument. It will display the BIOS version then run through a self-test procedure, Figure 2.9.

Chapter 2

This interface support 6 common baudrates: 4800, 9600, 19200, 38400, 57600, 115200. Use the arrow keys to navigate the menu screen and the soft-keys to select the desired baudrate. The number of data bits, parity and stop bits are preset and unchangeable. (8 bits, no parity, and 1 stop bit, so called N-8-1). See Figure 2.3.

CHAPTER 2. MENU 7

Figure 2.3: COMM Conguration - RS-232

Figure 2.4: COMM Conguration - USB

2.1.2.2 USB

This unit operates as a USBTMC (USB Test and Measurement Class) device. There are no conguration options for this interface. Figure 2.4

2.1.2.3 GPIB

The GPIB interface may be congured to addresses 1 through 30. Use the arrow keys to select the numeric eld beside “GPIB Address” and use the rotary knob to change the value. The user may select each digit by the arrow keys as well. Figure 2.5

CHAPTER 2. MENU 8

Figure 2.5: COMM Conguration - GPIB

Figure 2.6: COMM Conguration - LAN (DHCP)

2.1.2.4 LAN

The LAN (Ethernet) interface may be congured as either DHCP or static. Use the arrow keys to select the IP Mode eld. When DHCP is selected, the current IP, subnet, and gateway are shown on screen (Figure 2.6). When “MANU” is selected (static mode) (Figure 2.7), the screen shows elds for setting the IP, subnet, and gateway. Using the arrow keys and the rotary knob allows the user to move between elds and digits, and use the rotary knob to change the value.

2.1.3 System Conguration Menu

From this menu, setting the date, time, brightness, and the state of the beep function is set. Use the arrow keys to navigate the elds, and the rotary knob to change the value. For the beep function, the soft keys are used to

change the value. When settings are changed, press the key to commit the changes. See Figure 2.8.

CHAPTER 2. MENU 9

Figure 2.7: COMM Conguration - LAN (Manual (static))

Figure 2.8: System Cong Menu

2.1.4 Self Test

The unit has a built in self test. This function tests the LEDs, the screen and some of the internal electronics, Figure 2.9. When the test is running, it cycles through colors on the LCD, and lights up the individual LEDs that illuminate the front panel buttons. When complete, the results are displayed on screen, DONE for the LCD and LEDs, and OK for the internal electronic tests.

From this screen, a test of each button is also available. A representation of all the buttons appears on screen after selecting the “KEY TEST” key, pressing the individual keys will highlight the text on screen indicating the

button is working. Press the to exit the test.

2.1.5 System Initialize Menu

System initialization will bring the manifold functions to their initial states. By navigating the functions listed on-screen and either selecting the check mark or “x” via the soft-keys, sets whether the function is initialized.

CHAPTER 2. MENU 10

Figure 2.9: System Self Test

Figure 2.10: System Initialize Menu

2.2 MENU > SETUP menus

From the “MENU” function, the next page is the “SETUP” soft-key (Figure 2.11). This screen essentially gives a summary of the settings controlling measurements.

2.2.1 Averaging Setup

When measuring low frequency signals where measurements begin to become unstable, averaging may be useful. To enable averaging enter the “Average Setup” menu (Menu>Setup>Average Set).

CHAPTER 2. MENU 11

Field Description

Average Listing of the average mode settings.

Sync Source The measurement synchronization signal source.

Line Filter The state of the line lter.

Update rate How often to measure

Freq Filter The state of the frequency lter.

Crest Factor The Crest Factor setting state

ExSensor1 External Sensor 1 state (on/o)

ExSensor2 External Sensor 2 state (on/o)

U_Range The voltage range setting.

Rate(V/A) External Sensor 1’s scale value

Rate(mV/A) External Sensor 2’s scale value

I_Range The current range setting.

Figure 2.11: Setup Information Screen

CHAPTER 2. MENU 12

State The state of the average function, On or O.

Type Exp or Line. Exp enables index averaging, and Line enables linear averaging.

Tcontrol Sets averaging to being either a rolling of repeating average.

Count EXP averaging attenuation constant, or LINE average count.

2.2.1.1 EXP - Index averaging

Dn= D

n−1

Mn− D

n−1

(2.1)

Dn The value displayed after the nth index averaging (D1, the value displayed after the rst averaging, is equal

to M1)

Dn-1 the value displayed after the (n-1)th index averaging

Mn the nth measured data.

K attenuation constant (1-64)

2.2.1.2 LINE - Linear averaging

Dn=

n−(M−1)

+ . . . + M

n−2

+ M

n−1

+ M

(2.2)

Dn The value displayed after linear averaging of m values from the n − (m − 1)thto nthvalue

M Measured value

m The number of values in the average set (1-64)

When m is divisible by n, the calculated value is the moving average; otherwise calculated value is the repeated average.

NOTE: When index averaging is set, averaging is implemented under the harmonic measurement function. When linear averaging is set, averaging can only be implemented in the conventional measurement function and this mode is not applicable to the harmonic measurement function.

2.2.2 External Sensor Setup

Figure 2.12 accesses via Menu>Setup>Ext Sen Set contains settings used with external sensors. The state (on/o) and gain (V/A (mA)) are set here.

2.2.3 Other settings: Filter and Crest Factor

Congure the measurement lter, synchronization signal source and crest factor from the “Other Set” menu. Access this menu via Menu>SET UP>OTHER SET. The “Other Set” menu is shown in Figure 2.13.

+ 44 hidden pages

BK Precision 5335B User Manual

Specifications and Main Features

Frequently Asked Questions