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.

CHAPTER 2. MENU 13

Figure 2.12: Ratio Set Menu

2.2.3.1 Filter

Frequency lter it is inserted in the frequency measurement circuit and may aect frequency measurement. It

can be used for ltering high-frequency components of interference to make the measured frequency parameter more accurate. When the frequency lter is switched on, the voltage or current of no more than 200Hz can be measured. The cuto frequency is 500HZ.

Line lter it is inserted in the voltage and current measurement circuit and has direct inuence on measurement

of the voltage, current and power. When the line lter is switched on, noise and high-frequency components from the inverter or distortion waveform can be ltered. The cuto frequency is 500HZ.

2.2.3.2 Crest factor

The crest factor is the ratio of the waveform peak to the eective value. The Measurement Conditions crest factor of 5335B is specied as the times of the crest value which can be input under the rated input conditions. The crest factor CF3 or CF6 can be selected in the interface “Menu > SETUP > OTHER SET”. See Chapter 4 for more details.

2.2.4 Inrush Measurement Setup

Feature not currently implemented.

CHAPTER 2. MENU 14

Field

Sync Source

Freq Filter

Line Filter

Crest Factor

Update Rate

Description

Select the synchronization source: U/I/OFF. The overall interval of the signal voltage, current or data updating cycle can be selected as the synchronization source for measurement.

Set the status of the frequency lter. When “ON” is selected, the frequency lter is turned on. When “OFF” is selected, the frequency lter is turned o.

Set the status of theline lter. When “ON” is selected, the line lter is turned on. When “OFF” is selected, the line lter is turned o.

Set the crest factor: CF3/CF6

Data Updating Rate Setting key: when this key is pressed, the capture interval of the voltage, current, power and other data, i.e. data updating rate, can be set. When the data updating rate is increased, rapid load changes of the power system can be obtained. When the data updating rate is decreased, relative lowfrequency signals can be measured. Options of the dataupdating rate: 0.1s/0.25s/0.5s/1s/2s/5s

Figure 2.13: Other Set Menu

CHAPTER 2. MENU 15

Field

State

Trig Level(A)

Delay Time(ms)

Measure Time(s)

Description

ON/OFF - Enable or disable inrush measurement.

The current level to triggin inrush measurement

The hold o time following a trigger to start measurement

The duration of the measurement following trigger and delay

2.3 CAL ZERO

Perform a zero calibration of the unit. Enter this menu via “Menu>Cal Zero”.

2.4 RATIO SET

This setting has the eect of scaling the measured value of the current and voltage. For example, a 116V signal becomes 232V when the “Voltage Ratio” is set to 2. The Ranges are not eected by this setting, so the 150V range is still shown and used. Use the arrow keys to move between parameters and digits. Use the knob to

change the value of the selected digit. To commit the setting change, press the button. See Figure 2.4

CHAPTER 2. MENU 16

Chapter 3

External Current Sensor

More information to be added in future versions of this documentation.

When using an external current sensor, the power meter has more current range options.

Sensor Input Crest Factor Ranges

EXT1 Crest Factor 3 (CF=3) 2.5 V, 5 V, 10 V

EXT1 Crest Factor 6 (CF=6) 1.25 V, 2.5 V, 5 V

EXT2 Crest Factor 3 (CF=3) 50 mV, 100 mV, 200 mV, 500 mV, 1 V, 2 V

EXT2 Crest Factor 6 (CF=6) 25 mV, 50 mV, 100 mV, 250 mV, 0.5 V, 1 V

Table 3.1: External Sensor Ranges

Chapter 4

Measurement Setup

Central to setting the proper range of the instrument is the Crest Factor. Crest factor is the ratio of the peak value of a waveform to the RMS value of the waveform. For example, a perfect sine wave crest factor RMS value is 0.707*Peak. The crest factor is the inverse of the normalized RMS value, 0.707−1= 1.414. In many cases, like the current waveform of a AC-DC power supply, the crest factor is a larger value. For accurate measurement, the signal measured should stay within the measurement range of the instrument. For example, a 100V RMS signal with a crest factor of 5 has peaks of 500V. If the range selected is smaller than 500V than inaccuracy will occur as the signal will be clipped.

4.0.1 Crest factor

The Crest Factor, the ratio of the peak to the RMS value, has two settings, 6 or 3. This setting applies to both current and voltage simultaneously, and modies the available ranges listed in Section 4.0.2. Essentially, by knowing the RMS signal level and the peak value, the setting of this parameter is determined. For an 117V RMS AC line signal with little distortion and a purely real load (power factor = 1), the peak value is

1.414 ∗ 117V = 165V . 1.414 is the approximate Crest Factor of a Sine wave. So, the appropriate setting will be 3 (CF3).

CrestF actor(CF ) =

As this meter also measures the DC level of the signal, this must also be accounted for when choosing the Crest Factor. If the the signal will exceed the range of the unit (crest factor * range) then the measurement value will be clipped and the value inaccurate. Conversely, by choosing a Crest Factor and Range combination that accommodates the peak value of the signal, a larger crest factor than set may be measured. The trade-o is then the accuracy, and is listed in the specications, Chapter 10.

Example (Range=150 V, CF = 6): The maximum input signal and crest factor are as follows:

= 100 Range = 150V V

rms

So, a signal with a peak that is 9 times that of the RMS value (Crest Factor 9) is measurable using these settings.

P eak

RM S

maxrange

= 900V

4.0.2 Set Measurement Range

The appropriate measurement range (voltage and current range) must be set for accurate measurement.

CHAPTER 4. MEASUREMENT SETUP 19

1. In the “Meter” interface Press the soft key corresponding to either “U-RANGE” or “A-RANGE”, and use the knob or the arrow keys to select the voltage or current range desired. See Table 4.1

2. Press the “Enter” key to conrm the setting. Otherwise the instrument will automatically conrm and exit the setting after 5 seconds of no activity.

CF 3 CF6

Voltage 15, 30, 60, 150, 300, 600V 7.5, 15, 30, 75, 150, 300V

Current 5, 10, 20, 50, 100, 200, 500mA, 1, 2, 5, 10, 20A 2.5 ,5 ,10 ,25 ,50 ,100 ,250mA, 0.5, 1, 2.5, 5, 10A

Table 4.1: Current and Voltage Ranges per Crest Factor setting

4.1 Voltage and current range

4.1.1 Fixed range

Select the required range from a number of options. For the voltage range, when the crest factor is 3, the maximum option is 600V and the minimum option is 15V. When the crest factor is 6, the maximum option is 300V and the minimum option is 7.5V. See Table 4.1

Measurement accuracy is improved by minimizing the range for a given input signal.

4.1.2 Auto Range

The measurement range adjusts automatically according to the input signal, and uses same ranges as in Fixed range mode. See Table 4.1.

Adjustment of the range occurs when the following conditions occur:

Increasing range

• Urms or Irms exceeds 110% of the current range setting.

• When the crest factor is 3, and the peak voltage or current exceeds 330% of the range currently set.

• When the crest factor is 6, and the peak voltage or current exceeds 660% of the range currently set.

Decreasing range

• Urms or Irms is less than or equal to 30% of the current measurement range.

• The crest factor is 3. The value Upk or Ipk of the input signal is less than 300% of the range at the following level.

• The crest factor is 6. The value Upk or Ipk of the input signal is less than 600 % of the range at the following level.

The selected automatic range may change when the input is a random pulse. In this case, a xed range should be used.

CHAPTER 4. MEASUREMENT SETUP 20

4.2 Measurement interval

The measurement interval is the time during which data is taken. The fundamental frequency of the measured signals restricts the measurement intervals that yield meaningful results. For example, measuring 10Hz with an interval of less than the 0.5s setting will not yield stable results. The unit needs a number of cycles to be present to determine the frequency, and measurement intervals are not synchronized to the input.

Note: The scope timing parameters do not control the measurement interval.

• A cycle is determined by detecting zero crossings.

• Either positive, or negative going transitions of the synchronization source determine the measurement timing. If the zero crossings do not occur within the set update interval, the entire interval is used for calculating the various measurements. See Figure 4.1. The choice of rising or falling transition is determined as that which gives the greatest amount of time.

• For peak value measurements (Ipk+, Upk-, etc…), the entire update interval is used. Measurements of Crest Factor, as it is the Peak to RMS ratio, are also determined using the entire measurement update interval.

• The input signal used as the synchronization source is congurable, and determines the synchronization with the zero point of that input signal. The overall interval of the voltage, current or data updating cycle may be selected as the synchronization source.

Figure 4.1: Measurement Timing

The data updating cycle refers to the cycle used for calculating sampling data of the measurement function. It is identical to the set value of the data updating rate. The slope refers to signal changes from low level to high level (rising edge) or from high level to low level (descending edge).

4.3 Filter and Crest Factor Setting

1. Select Menu → SET UP → OTHER SET and enter the OTHER conguration page.

2. Press to select the parameter to be congured (blue font background), and then press the soft key corresponding to the parameter on the right to set the required value, as shown in the Figure 4.3.

3. Press the Enter key to save the settings.

CHAPTER 4. MEASUREMENT SETUP 21

Figure 4.2: Measurement Timing 2

Function Description

Sync Source

Freq Filter Enable or disable the Frequency Filter.

Line Filter Enable or disable the Line Filter.

Crest Factor Set the crest factor to 3(CF3), or 6 (CF6) (See Section 4.0.1)

Update Rate

Synchronization Source, the source used to determine the measurement interval. May be set to voltage (U), current (I) or turned o.

Data Update Rate: the capture interval of the voltage, current, power and other data can be set. When the data updating rate is increased, rapid load changes of the power system can be measured. Conversely, when decreased, relative low-frequency signals can be measured. Values = 0.1, 0.25, 0.5, 1, 2, and 5 seconds

Figure 4.3: Other Settings Display

4.3.1 Filter

Frequency Filter It is inserted in the frequency measurement circuit and may aect frequency measurement.

It can be used for ltering high-frequency components of interference to make the measured frequency parameter more accurate. When the frequency lter is switched on, the voltage or current of no more than 200Hz can be measured. The cuto frequency is 500Hz.

CHAPTER 4. MEASUREMENT SETUP 22

Line lter It is inserted in the voltage and current measurement circuit and has direct inuence on measurement of the voltage, current and power. When the line lter is switched on, noise and high-frequency components from the inverter or distortion waveform can be ltered. The cuto frequency is 500Hz.

4.4 Averaging Function

1. Select ⇒ SET UP ⇒ AVERAG SET to enter the conguration page of the averaging function.

2. Press to select the parameter to be congured (blue background), and press the soft key corresponding to the required value. See Figure 4.4.

3. Press the Enter button to conrm the setting.

Figure 4.4: Averaging Settings

Character Function description

State Enable or disable averaging.

Mode Average mode Line=linear or Exp=cumulative moving average

Type Averaging type. MOVING: moving averaging REPEAT: repeated averaging

Count Set the times of the averaging function.

Table 4.2: Average Settings Menu

Note:

• If the mode of the averaging function is set as EXP (index averaging), the attenuation constant can be set.

• If the mode of the averaging function is set as LINE (linear averaging), the averaging times can be set.

4.4.1 Index averaging

Dn= D

n−1

Mn− D

n−1

CHAPTER 4. MEASUREMENT SETUP 23

The value displayed after the nth index averaging, (D1, the value

displayed after the rst averaging, is equal to M1)

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

n−1

the nth measured data.

k attenuation constant (1-64)

4.4.2 Linear averaging

n−(m−1)

n−2

n−1

Dn=

linear average of m values from the (n − (m − 1))thto nthvalue

(n − (m − 1))thmeasured data

(n − 2)thmeasured data

(n − 1)thmeasured data

nthmeasured data

M the number of average values (1-64)

When m can be divided exactly by n, the calculated value is the moving average; when there is no particular relationship between m and n, the calculated value is the repeated average.

+ . . . + M

n−2

+ M

n−1

+ M

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.

The following measurements are subject to direct averaging:

1. Urms, Umn, Udc, Urmn, Uac, Irms, Imn, Idc, Irmn, Iac, P, S and Q.

2. Ucf, Icf, λ and WPAV are calculated by operation of the averaged Urms, Irms, P and S.

4.4.3 Harmonic measurement averaging

The following measurement functions are subject to direct averaging:

1. U(k), A(k),W(k), S(k) and Q(k).

2. λ(k) is calculated via operation of the averaged W(k) and Q(k).

3. U(%r), A(%r), W(%r) , U(%f), A(%f) and W(%f) are calculated via operation of the averaged U(k), A(k) and W(k). (k indicates the harmonic times.)

Chapter 5

Meter Display

The 5335B has 3 congurable display formats. Each format also allows for 5 dierent congured sets of measurement. 1 large and 6 small, 4 large and 6 small, or 12 small measurements may be displayed. See Figures 5.1, 5.2, 5.3.

5.0.1 Operation steps

1. Press

2. The “View” soft-keys select the display format (1,4,12). Repeated press of the soft-key cycles through the dierent congurations, up to 5 of them.

3. The “CONFIG” soft-key enters the conguration mode for that set of pages.

4. The “FUNC” soft-key cycles through the sets of measurements available for Power (P), Current (I), and Voltage (U).

5. To change the measurements shown on a page, use the arrow keys and move the cursor to an on-screen parameter, and select the desired measurement from the soft-keys on the right of the display.

6. To add or remove a page press the “INSERT PAGE” or “DELETE PAGE” respectively. 1 to 5 pages are supported.

CHAPTER 5. METER DISPLAY 25

Figure 5.1: 1 main measurement

Figure 5.2: 4 main measurements

CHAPTER 5. METER DISPLAY 26

Figure 5.3: 12 main measurements

Chapter 6

Waveform Display Function

The 5335B power meter displays waveform representations of the sampled data measured. This function is designed to be similar to an oscilloscope with many of the typical functions of oscilloscopes available, like trigger, run/stop and single trigger. The capture of data is not limited to that displayed onscreen, the measurement interval is also involved. For example, measuring a 15Hz signal with the interval set to 0.1s does not allow for stable measurement of the frequency. The waveform is however still viewable at 100ms/div.

To enter the waveform function press the button.

6.0.1 Trigger Status

The Auto/Stop eld in the upper right corner of the display, below the time shows the trigger status. The meanings are as follows:

Auto Auto mode and a trigger has occured

Auto? Auto mode waiting for a trigger

Trig? Single mode waiting for a trigger

Stop Capture stopped. Reached either by pressing “stop” or completing a single mode capture

Figure 6.1: Waveform Display Details

CHAPTER 6. WAVEFORM DISPLAY FUNCTION 28

Parameter name Parameter descriptions

V_RANGE Voltage range setting: press to set the voltage range

A_RANGE Current range setting: press to set the current range

RUN/STOP Run/stop: press to run or stop waveform capture

SINGLE

SCOPE(U/A/UA) Select the waveform(s) to display on screen (voltage/current/voltage and current)

KNOB SEL (U/A/TL/TD/Td)

AUTO

TRIG SET Trigger setup menu. See Section 6.1

MEASURE SET Measurement setup menu.

Single measurement: pressing this stops capture and proceeds with a single capture of data following a trigger event.

Knob selection, the parameter adjusted by turning the knob. voltage waveform position (U), current waveform position (I), trigger level (TL), trigger delay (TD), time/division (T/d)

Automatic mode: the power meter will automatically set the waveform display conguration

Table 6.1: Waveform Display Parameters

Figure 6.2: Trigger Setup Screen

6.1 Trigger Setup

When you need to enable the trigger function, you should select the trigger source, trigger mode, trigger slope and other trigger-related conguration. Detailed steps are as follows:

Operation steps

1. Press to enter the waveform display interface.

2. In the waveform display interface Press the soft key corresponding to the “TIRG SET” parameter to enter the trigger setting interface, as shown below.

3. Press the right soft key corresponding to the parameter to select the required trigger conguration.

Source trigger source

CHAPTER 6. WAVEFORM DISPLAY FUNCTION 29

Mode trigger mode

Slope trigger slope

6.1.1 External trigger input (Ext)

When the trigger source is set as Ext, input the trigger signal into the external signal input interface (Synchronous) of the rear panel according to the following specications.

Projects Specication

Interface type BNC interface

Input level TTL

Minimum pulse width 1µs

Trigger delay time Within (1µs + 3 sampling cycles)

NOTE: When the voltage higher than 0-3.3V is applied on the external signal input interface (Synchronous), the instrument may be damaged.

Minimum pulse width refers to the width of the high or low trigger level, at least 1µs.

Trigger delay time refers to the delay between the appearance of the trigger level and the response of CPU,

within (1µs + 3 sampling cycles).

Chapter 7

Harmonic Measurement Function

With the 100kHz bandwidth, the 5335B power meter can realize harmonic measurement of high speed and wide dynamic range. The voltage, current, active power, reactive power, phase of harmonics and total harmonic distortion (THD) factor can be tested in harmonic measurement mode. Display of harmonic parameters is either in list or bar chart form for clear analysis of test results.

To enter this mode, select the button, and the initial harmonic measurement interface starts.

Parameter name Parameter descriptions

V_RANGE Voltage range setting

A_RANGE Current range setting

RUN/HOLD

RESET Clear measured values

FUNC(W/A/V)

BAR Display the bar chart mode

LIST Display the list mode

SETUP Enter the setup menu. See Section 7.3

Set the instrument to either “run” and continue measuring, or “hold” to freeze the measurements

When in bar mode, rotate between viewing power, current, and voltage harmonic measurements

Table 7.1: Harmonic Measurement Parameters

7.1 Bar Graph Mode

The bar chart is used for displaying the percentage of dierent harmonics. Enter this mode by pressing the

button (if not in the harmonic mode already), then select “BAR” from the on-screen soft-keys. Harmonics from 1 to 50 may be displayed at once. From the list of harmonics, Odd, Even or All harmonic subsets may be displayed. The bar graph shows either the Power, Current, or Voltage harmonic components. Select the function by repeatedly pressing the “FUNC” soft-key.

On the bar graph display, individual harmonics may be selected by using the arrow keys or the rotary knob. Figure 7.2 shows the 9th harmonic of 62Hz. Also shown highlighted in cyan is the bar and measurements associated with that particular harmonic (frequency, harmonic content, harmonic distortion factor and phase).

CHAPTER 7. HARMONIC MEASUREMENT FUNCTION 31

Figure 7.1: Bar graph mode - Harmonics

Figure 7.2: Selecting Specic Harmonics

7.2 List Mode

Enter this mode by pressing the button (if not in the harmonic mode already), then select “LIST” from the on-screen soft-keys. This list is used for showing the voltage, current, active power, reactive power, phase and total harmonic distortion (THD) factor of dierent harmonics. Harmonic lists can be displayed as a complete, odd, or even set. See Figure 7.3. From the “SETUP” menu, the list of harmonics is dened. The 1 through the 50th, odd, even, or all harmonics to display is congured here.

The list is composed 4 pages. Navigate to each page using the right and left arrow keys. The table columns are listed in Table 7.2

CHAPTER 7. HARMONIC MEASUREMENT FUNCTION 32

Figure 7.3: List mode - Harmonics

Abbreviations Instruction

U(V) Voltage

I(mA) Current

P(mW) Power

Q(mvar) Reactive Power

S(mVA) Apparent Power

PF() Power Factor

ϕUI(◦) Phase dierence of k-order harmonic voltage and harmonic current

ϕUU(◦) Phase dierence of harmonic voltage U(k) and fundamental U(1)

ϕII(◦) Phase dierence of harmonic current I(k) and fundamental I(1)

U(%r) or U(%f ) Voltage harmonic distortion

I(%r) or I(%f ) Current harmonic distortion

P(%r) or P(%f ) Power harmonic distortion

Table 7.2: Measurement Parameters

CHAPTER 7. HARMONIC MEASUREMENT FUNCTION 33

7.3 Setup Menu

The setup menu allows the user to set the distortion factor calculation formula, PLL source, and set of harmonics

to analyse and display. From the Harmonic Measurement function, , press the “MENU” soft-key.

Figure 7.4: Harmonic Measurement Setup Menu

7.3.1 Parameters

Use the arrow keys to select the dierent parameters, and if numeric, the rotary knob to set the value, or the soft-keys.

THD Formal Distortion factor calculation formula.

% r displaying harmonics in the form of percentage to the overall current (voltage, power) amplitude of

all harmonics.

% f displaying harmonics in the form of percentage to the fundamental wave current (voltage, power).

PLL Source Select the PLL (Phase Locked Loop) source: U/I/OFF. Used for determining the fundamental

wave cycle as the reference for analysis of harmonic orders.

Serial Harmonic sequence: whole sequence/odd sequence/even sequences

Order Max Set the harmonic analysis orders (1-50). You can specify the harmonic measurement range. These

specied analysis orders are used for calculating the value of the distortion factor.

7.3.2 Distortion factor

Distortion is either calculated relative to the fundamental (%f) or to the total signal (%r). Internally, the 5335B calculates according to the following equations:

CHAPTER 7. HARMONIC MEASUREMENT FUNCTION 34

Measurement function %r %f (7.1)

Harmonic distortion factor of voltage

Harmonic distortion factor of current

Harmonic distortion factor of active power

Total harmonic distortion rate of voltage

Total harmonic distortion rate of current

Total harmonic distortion rate of active power

√



U(k)

U(total)

I(k)

I(total)

P (k)

P (total)

max

∑

k=2

U(total)

√

max

∑

k=2

I(total)

max

∑

k=2

P (total)

U(k)

I(k)

P (k)

U(k) U(1) I(k) I(1) P (k) P (1)

√

max

∑

k=2

U(1)

√

max

∑

k=2

I(1)

√



max



∑



k=2



U(k)

I(k)

P (k)

P (1)



(7.2)

(7.3)

(7.4)

(7.5)

(7.6)

(7.7)

NOTE Total harmonics are calculated as follows: U(total) =

max

P (total) =

∑

P (k) . “k” indicates the harmonic order, and max indicates the upper limit of analysis orders,

k=0

√

max

∑

U(k)2, I(total) =

k=0

√

max

∑

k=0

I(k)2,

and the max is determined by the frequency of the PLL source automatically, at most 50.

7.3.3 PLL source

In the harmonic mode, 5335B uses a PLL to multiply the input signal fundamental. The frequency multiplication is used as the A/D sampling clock in the instrument in order to achieve ideally synchronous sampling. The range of the PLL source is from 10Hz to 1.2kHz. To maximize accuracy, select the cleanest signal source available, either the voltage or the current. This improves measurement consistency and stability, especially in relation to harmonic analysis.

If the amplitude level of the signal input into the unit as the PLL source is small relative to the range, PLL synchronization might fail. If the crest factor is set as 3, the amplitude level of the PLL source should be greater than 50% of the range. If the crest factor is set as 6, the amplitude level of the PLL source should be greater than 100% of the range.

When the fundamental wave frequency is less than 200Hz, the frequency lter should be turned on. When lower than 440Hz and containing high-frequency components, it is also best to turn on the frequency lter. This lter only applies to the frequency measurement circuit.

If the frequency of the PLL source changes, the correct measured value will be displayed after data are updated several times. The frequency of the PLL source needs to be tested again via the PLL circuit in the instrument in case of changes of the PLL source or its frequency, the correct measured value will be determined afterward.

NOTE If the analysis window determined by the fundamental frequency of the PLL source is longer than the data updating cycle, no harmonic data will be detected. In this case, the data update cycle should be lengthened. For example, when the fundamental wave frequency of the PLL source is 10Hz (cycle: 100ms), the analysis window is one-wave long, and the data measurement interval is 100ms. In this case, the harmonic measurement

CHAPTER 7. HARMONIC MEASUREMENT FUNCTION 35

time is approximately more than or equal to 150ms (data measurement interval and data processing time). Therefore, select the data update rate of 250ms or more for measurement and display of harmonic data.

Chapter 8

Integral Operation Function

Access the integration function by pressing the “Integ” button. This function integrates power and current measurements over time to generate measurements in producing (sold) or consuming (buying) directions.

The 5335B power meter can be used for integral operation of the current and power of the input unit. Technical indicators can be calculated. In addition, the range can be switched automatically in the Buy and Sell modes according to the input level so as to accurately complete integrate measurement.

During operation of the air-conditioner, refrigerator, induction cook and other household appliances, the working status will change frequently, resulting in changes of the working current in a large scale. The current may decrease of dozens of amperes to a few milliamperes. Ordinary power measuring instruments can only be used for integral measurement within one range. If the measured value exceeds the current maximum range, the measurement result is inaccurate. You need to manually switch the range before integral measurement. Integral measurement of equipment subject to large current changes cannot be performed continuously. The BK5335B power meter can automatically switch the range in the integral mode. Therefore, errors of integral measurement caused by manual range switching can be eliminated, and the power consumption of household appliances can be measured more accurately. See the schematic diagram below.

Figure 8.1: Range Switching

CHAPTER 8. INTEGRAL OPERATION FUNCTION 37

Figure 8.2: Meter Display

Parameter name Parameter descriptions

V_RANGE

A_RANGE

RUN/HOLD

RESET Reset.

FUNC(w/q/AV)

LARGE (WP/WP+/WP-, q/q+/q-, WPAV)

START

STOP

SETUP Set relevant parameters of integral measurement.

Voltage range setting: press the soft key corresponding to this parameter to set the voltage range.

Current range setting: press the soft key corresponding to this parameter to set the current range.

Run/hold: press the soft key corresponding to this parameter to run or hold the integral function.

Selection of the integral function: active power integral (W), current integral (q) and average active power integral (AV).

Selection of the item to be displayed in a amplied manner: WP (watt hour, the sum of positive and minus watt hours), WP+ (the consumption of positive watt hours), WP- (the negative watt hours of feedback power), q (ampere hour, the sum of positive and negative Ampere hours), q+ (the consumption of positive Ampere hours), q- (the negative ampere hours of feedback power) and WPAV (average active powerintegral).

Integral Start button In the manual start mode, the integral function can be enabled by pressing the soft key corresponding to this parameter.

Integral Stop button In the manual stop mode, the integral function can be disabled by pressing the soft key corresponding to this parameter.

Table 8.1: Integral Measurement Soft Keys

8.1 Introduction of soft keys on the interface

When the “Integ” button is pressed, the initial integral measurement interface below will appear.

Description of information of integral measurement interface:

CHAPTER 8. INTEGRAL OPERATION FUNCTION 38

Character

Mode

State

Start

Stop

Ready

Time Up

Reset

Error

Time

Timer

Function description

Display the integral start and stop mode. Start mode: MANUAL and TIME Stop mode: MANUAL, TIME and TINTerval.

Display the current status of the integral function.

displayed when the integral function is working.

displayed when the integral function is interrupted, canceled or stopped.

displayed in the ready state of the real-time start mode.

displayed when it reaches the specied time of the integral timer.

displayed when the integral value and integral time are reset via integral resetting.

when the power supply is recovered, the integral function is stopped and the integral result before power failure is displayed. This integral state is called Error state.

Display the integral time.

Display the set integral time.

Display the set integral ending time.

Display the xed integral time.

Table 8.2: Measurement Information

8.2 Integral measurement display information

Description of measurement information:

8.2.1 Integral operation

• Active power integral In watt hour, displayed as WP (watt hours, the sum of positive and negative watt hours), WP+ (the consumption of positive watt hours) and WP- (the negative watt hours of feedback power).

• Current integral In q, displayed as q (ampere hours, the sum of positive and negative ampere hours), q+ (the consumption of positive ampere hours) and q- (the negative ampere hours of feedback power)

• Average active power integral In watt, displayed as WPAV (average active power integral)

• Integration time Displayed as Time, in the format of hhhh:mm:ss.

8.3 Specication

• Save in case of power failure The integral result can be kept in the memory even in case of power failure during operation of the integral function. When the power supply is recovered and the integral function is disabled, the integral result before power failure is displayed. When the power supply is recovered and the integral is rest, the integral function is enabled again.

• Display resolution The maximum display resolution of the integral value is 99999. When the integral value reaches 100000,

CHAPTER 8. INTEGRAL OPERATION FUNCTION 39

Function

Wiring

Measurement range

Filter

Averaging function

Synchronization

Data updating rate

Integral mode

Integral timer

Integral start

Integral stop

Integral resetting

Save operation

Hold operation

Single measurement operation

Integral resetting

Executable Unenforceable Unenforceable

Executable Unenforceable Executable

Unenforceable Executable Unenforceable

Executable Unenforceable Executable

Executable Executable Executable

Table 8.3: Settings congurability per mode

Current integral status

Integral interruption

the decimal point will move automatically. For example, when 0.01mWh is added to 999.99mWh,

1.0000Wh will be displayed.

• Display in case of overow When the integral value meets the following overow conditions, the integral function will be disabled, and the integral time and integral value at this point will be kept.

– The integral time reaches the maximum value (10000hours).

– The integral values of WP, q and WPAV reach the maximum/minimum display integral values.

• Maximum/minimum display integral value

– Active power integral (WP): ±99999Mwh

– Current integral (q): ±99999MAh

– Average power integral (WPAV): ±99999Mw

• Restricted implementation Settings of the following functions cannot be changed during integral operation.

NOTE In addition to the above items, other settings (such as self-testing and date/time setting) or operations with inuence on the integral cannot be executed; otherwise, errors may be caused.

8.4 Setting of Integral Measurement Conguration

You can set the start mode, stop mode, automatic zero setting, automatic calibration, watt-hour integration, current integration and other parameters of integral measurement. Specic steps are as follows:

Operation steps

CHAPTER 8. INTEGRAL OPERATION FUNCTION 40

1. Press “Integ” to enter the integral measurement interface.

2. Press the soft key corresponding to the “SETUP” parameter in the integral measurement interface to enter the integral parameter conguration interface.

8.4.1 Parameter descriptions:

Start set in the MANUAL mode or TIME mode via the right soft key.

MANUAL press the “START” soft key in the integral measurement interface in the manual start mode to

trigger the manual start of the integral function.

TIME: the date on which the integral mode is started can be set in the real-time start mode. Integration will

be started on the set date. When the time/date combination is set in the real-time start mode, integration will not be started before the current time and date. Integration will be started when the screen is updated once at least before the start time.

Stop: set in the MANUAL mode, TIME mode and TINTerval mode via the right soft key.

MANUAL: press the “STOP” soft key in theintegral measurement interface in the manual stop mode

tomanually stop integration. When the integration time reaches the maximum integration time (10,000 hours) or the integral value reaches the maximum/minimum display value, integration will be stopped, and the current integral time and integral value will be kept.

TIME The date for stop of the integral mode can be set in the real-time stop mode. Integration will be stopped

on the set date. When it reaches the set time or the integral value reaches the maximum/minimum display integral value, integration will be stopped, and the current integral time and integral value will be kept.

TINTerval the integral measurement time can be set in the set-time stop mode. When it reaches the set

ending date and time or the integral value reaches the maximum/minimum display integral value, integration will be stopped, and the current integral time and integral value will be kept.

Auto Clear used for enabling (ON) or disabling (OFF) the function of automatic zero clearing of the integral.

On: integration is restarted when the START button is pressed to start integration. OFF: integration is restarted based on the integral value at the end of previous integration when the START button is pressed to start integration.

Auto Cal used for enabling (ON) or disabling (OFF) the function of automatic integral calibration. When

automatic integral calibration is enabled, zero setting is implemented. In this case, the power and current measured just now are subject to integration.

WP type used for selecting the integral mode for positive and negative watt hours. There are four integral

modes:

Charge/Discharge: used for measuring the DC positive and negative watt hours (integration of sampling data).

Sold/Bought used for measuring the AC positive and negative watt hours (value integration in each data

updating cycle).

q type used for selecting the current integration mode. Options of the current integration mode are as follows:

rms Eective value;

mn Calibration to the average rectied value of the eective value.

dc Simple averaging;

rmn Average rectied value;

ac AC component

CHAPTER 8. INTEGRAL OPERATION FUNCTION 41

8.5 Integration

When the integral measurement function is enabled, you can keep the current integral information and carry out the following operations: exit, start and stop. Specic steps are as follows:

Operation steps

1. Press “Integ” to enter the integral display interface.

2. In the integral measurement display interface Press the soft key corresponding to the “START” parameter to start or recover integral operation. The Start status and integral operation value are displayed in the interface.

3. When you need to keep the current integral status and integral result, you can press the soft key corresponding to the “RUN HOLD” parameter. Then the current status of the integral result display and communication output will be kept no matter whether integral operation is running.

4. When you need to continue to implement integral operation, double-press the soft key corresponding to the “RUN HOLD” parameter to exit the HOLD status. The power meter will display the integral result after exiting the HOLD status. The schematic diagram of display of the HOLD/RUN integral result is shown below.

5. When you need to suspend integral operation, press the soft key corresponding to the “Stop” parameter to suspend integral operation.

6. Press the soft key corresponding to the “RESET” parameter to reset the integral value and integral time. The relationship diagram of start, suspension and resetting of the integral operation status is shown below.

Auto Clear when ON is selected.

Auto Clear when OFF is selected.

Chapter 9

Remote Operation

There are four types of communication interfaces available:USB,Ethernet,GPIB and RS232.You can choose any one of them to communicate with a PC.

9.1 RS-232 Interface

RS232 interface:use a cable with two COM interface (DB9) to connect power meter and PC. It can be activated by menu key on the front panel.All SCPI commands are available through RS-232 programming.

• RS-232 data is a 10-bit word with one start bit and one stop bit. The number of start and stop bits is not programmable.

• Baudrate Available baudrate:4800 9600 19200 38400 57600 115200

• RS-232 connection The RS-232 serial port can be connected to the serial port of a controller (i.e., personal computer) using a straight through RS-232 cable terminated with DB-9 connectiors. Do not use a null modem cable. Table 9.1 shows the pinout for the connector.

If your computer uses a DB-25connector for the RS-232interface,you will need a cable or adapter with a DB-25 connector on one end and a DB-9 connector on the other,wired straight through(not null modem).

RS-232

9.1.1 RS-232 troubleshooting

If you are having trouble communicating over the RS-232 interface,check the following: The computer and the power meter must be congured for the same baudrate, parity, number of data bits,and ow control options.

Figure 9.1: RS-232 DE-9 Connector

CHAPTER 9. REMOTE OPERATION 43

Pin # Signal

1 NC

2 TX

3 RX

4 NC

5 GND

6 NC

7 CTS

8 RTS

9 NC

Table 9.1: RS-232 (DE-9) Pinout

Note that the eledtronic load is congured for 1 start bit and 1stop bit (these values are xed). The correct interface cables or adapters must be used, as described under RS-232 connector. Note that even if the cable has the proper connectors for your system,the internal wiring may be incorrect. The interface cable must be connected to the correct serial port on your computer (COM1, COM2,etc.).

9.1.2 RS-232 Communication settings

Before communication operation, please make sure that the following parameters of electronic load match that of PC.

Baud rate 9600(4800,9600,19200,38400,57600,115200). You can enter system menu through panel to set

communication baud rate.

Data bit 8

Stop bit 1

Parity (none,even,odd)

EVEN 8 data bits with even parity

ODD eight data bits with odd parity

NONE eight data bits without parity

Recommended settings Start Bit, 8 Data Bits, Parity=None, 1 Stop Bit

9.2 USB interface

Use Type A to Type B USB cables to connect the power meter.

The USB interface capabilities of the power meter are described below:

• The interface is IEEE488.2 standard USB488 interface

• The interface accepts REN_CONTROL,GO_TO_LOCAL ,LOCAL_LOCKOUT request.

• The interface accepts MsgID = TRIGGER USBTMC command message and forwards TRIGGER requests to the function layer.

CHAPTER 9. REMOTE OPERATION 44

The USB488 device capabilities of the power meter are described below:

• The device understands all mandatory SCPI commands.

• The device is SR1 capable.

• The device is RL1 capable.

• The device is DT1 capable.

9.3 GPIB interface

First conncet GPIB port of power meter to GPIB card of PC. They must be sucient contact and tighten the screws. And then set address. The address can be set from 0 to 30.

9.4 LAN interface

Use a network cable to connect PC through LAN interface of the power meter.

• IP mode MANU: manually set IP address, subnet mask, default gateway, etc. DHCP (Dynamic Host Conguration Protocol) DHCP refers to a protocol that temporarily assigns necessary information to PCs connected to the Internet. If the network is provided with an available DHCP server, the server will automatically assign information (IP address, subnet mask and default gateway) to PCs and other equipment connected to the network. 5335B cannot use DHCP unless the network is provided with a DHCP server. Please ask your network administrator DHCP if DHCP is available.

• IP Address IP addresses assigned to 5335B can be set. Default address is 192.168.000.000.

• IP address refers to ID assigned by the network to each equipment (Internet or enterprise Intranet).

• IP address refers to four 32-bit values within 0 - 255 which are separated by decimal points, such as [192.168.111.24].

• Please ask the network administrator to provide an IP address.

• Use DHCP network to automatically set the IP address.

• Subnet masksetting The mask used when subnet website is determined from an IP address may be set. Default address is

255.255.255.255.

• Vast TCP/IP networks like Internet are often divided into several small networks, i.e. subnets. The subnet mask is used to identify how many digits of the 32-digit values in the IP address belong to the subnet address. The part beyond the network address is used to identify the host number of each PC connected to the network.

• Ask your network administrator about values of subnet mask.

• Use DHCP network to automatically set the subnet mask.

• Gatewaysetting IP address of gateway may be set to communicate with equipment in other network (default gateway). Default address is 192.168.000.000.

CHAPTER 9. REMOTE OPERATION 45

• The default gateway controls data exchange between networks and protocols to ensure smooth data transmission.

• Ask your network administrator about values of default gateway. It is possible that the setting is unnecessary. Use DHCP network to automatically set the default gateway.

Chapter 10

Specications

The specications listed below are valid and specied for the following conditions:

• Warm up time of 30 minutes

• Ambient temperature - 23 ± 5

• Relative humidity 30 to 75%

◦

Power Meter

5335B

Speciﬁcations

Speciﬁcations are subject to the following conditions Temperature: 23±5° C, humidity: 30 to 75% RH. Warm-up time: 30 minutes

Model 5335B

General Measurement Speciﬁcations

Voltage, Current

Basic measurements

Power Real, Apparent, Reactive, DC, Power factor

Time Frequency, Phase

Integration Total power, Total current, Maximum power, Minimum power

Type

Harmonic measurements

Range DC up to 50

Max. Frequency 100 kHz

Input bandwidth DC, 0.5 Hz to 100 kHz

Measurement method Digital sampling

A/D Converter Simultaneous conversion of voltage and current inputs, Resolution: 18-bit, Maximum conversion rate: 10 μs

Line ﬁlter Select OFF or ON (cutoff frequency at 500 Hz)

Peak (max,min) Voltage, current, or power

Input voltage continuous max. 1.5 kV-peak or 1 kV-RMS, whichever is less

Input voltage transient (<1s) max. 2 kV-peak or 1.5 kV-RMS, whichever is less

Input voltage common-mode max. 600 Vrms

Voltage input impedance 2 MΩ + 13 pF in parallel (typical)

5 mA to 200 mA range 505 mΩ + 0.1 μH

Current input

0.5 A to 20 A range 5 mΩ + 0.1 μH

impedance (typical)

Sensor input

5 mA to 200 mA range 30 A-peak or 20 A-RMS, whichever is less

Input current continuous max.

0.5 A to 20 A range 100 A-peak or 30 A-RMS, whichever is less

Sensor input Peak value less than or equal to 5 times the rated range

5 mA to 200 mA range 30 A-peak or 20 A-RMS, whichever is less

Input current transient (<1s) max.

0.5 A to 20 A range 150 A-peak or 40 A-RMS, whichever is less

Sensor input Peak value less than or equal to 10 times the rated range

Voltage Measurement Accuracy and Ranges

Ranges

DC to 1 kHz ±(0.1% + 0.2% F.S.)

Accuracy

(line, frequency, &

digital ﬁlter set to off)

1 kHz < f ≤ 10 kHz

10 kHz < f ≤ 100 kHz

For temperature changes after zero-level

Temperature

coefﬁcient

compensation or range change

Inﬂuence of self-generated heat caused by voltage

input (U is the voltage reading (V))

Input signal frequency in kHz

Input waveform: Sine wave crest factor: 3, common-mode voltage: 0 V, power factor: 1

Frequency ﬁlter: Turn on when measuring ≤ 200 Hz

Peak to peak, Maximum, Minimum, Average_rms, Average_rectiﬁed, DC,

Crest factor (current), Inrush (current)

Current, Voltage, Real power, Apparent power, Reactive power,

Power factor, Phase, Percentage of total (Current, Voltage, Power)

20 kΩ (50 mV to 2 V)

100 kΩ (2.5 V to 10 V)

CF=3: 15 V, 30 V, 60 V, 150 V, 300 V, 600 V

CF=6: 7.5 V, 15 V, 30 V, 75 V, 150 V, 300 V

±((0.07 f

±(0.5% + 0.5% F.S.) ± [{0.04 × (f

+ 0.02% F.S. /°C to the DC voltage accuracy

+ 0.0000001 × U

% + 0.0000001 × U

order

)% + 0.3% F.S.)

- 10)}% ]

% to the AC voltage accuracy

% F.S. to DC current accuracy

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Power Meter

5335B

Speciﬁcations (cont.)

Current Measurement Accuracy and Ranges

Direct input range

External 1

Sensor input range

External 2

DC to 1 kHz ±(0.1% + 0.2% F.S.)

Accuracy

(line, frequency, &

digital ﬁlter set to off)

1 kHz < f ≤ 10 kHz

10 kHz < f ≤ 100 kHz

2.5 to 200 mA 5 μA/ °C (after zero-level compensation, or range change)

Temperature

coefﬁcient

Power Measurement Accuracy

500 mA to 20 A 500 μA/ °C (after zero-level compensation, or range change)

Inﬂuence of internal

sensor self-heating

+ 0.00013 × I

0.00013 × I

DC ±(0.1% + 0.2% F.S.)

0.5 Hz ≤ f < 45 Hz ±(0.3% + 0.2% F.S.)

45 Hz ≤ f ≤ 66 Hz ±(0.1% + 0.1% F.S.)

Real power accuracy

2 , 3

(CF= 3)

66 Hz < f ≤ 1 kHz ±(0.2% + 0.2% F.S.)

1 kHz < f ≤ 10 kHz ±(0.1% + 0.3% F.S.) ± [{0.067×(f-1)}%]

10 kHz < f ≤ 100 kHz ±(0.5% + 0.5% F.S.) ± [{0.09×(f-10)}%]

Apparent power (S) Voltage accuracy + current accuracy

Reactive power (Q)

Power factor (

Phase angle (Ф)

PF)

±[(PF–PF/1.0002) + abs(cosØ - cos{Ø+sin

±[abs(Ø - cos

Temperature coefﬁcient Same as the temperature coefﬁcient for voltage and current

Frequency Measurement Accuracy

Frequency

measurement

range

Data update interval 0.1 s 0.25 s 0.5 s 1 s 2 s 5 s

Measurement range 25 Hz ≤ f ≤ 100 kHz 10 Hz ≤ f ≤ 100 kHz 5 Hz ≤ f ≤ 100 kHz 2.5 Hz ≤ f ≤ 100 kHz 1.5 Hz ≤ f ≤ 50 kHz 0.5 Hz ≤ f ≤ 20 kHz

Accuracy ±0.06%

Frequency ﬁlter 500 Hz low-pass

Input signal frequency in kHz

Input waveform: Sine wave crest factor: 3, common-mode voltage: 0 V, power factor: 1

Frequency ﬁlter: Turn on when measuring ≤ 200 Hz

When power factor (PF)=0 (apparent power (S)):

±0.2% of S when 45 Hz ≤ f ≤ 66 Hz ±{(0.2+0.2×f)% of S} when 0.066 ≤ f ≤ 100 kHz When 0<PF<1(phase angle (Ф)): (power reading ) × [(power reading error %) + (power range %) × (power range/indicated apparent power value) + {tan When the line ﬁlter is turned ON: 45 to 66 Hz: Add 0.3% of reading <45 Hz: Add 1% of reading

Accuracy when the crest factor is set to 6, the accuracy is obtained by doubling speciﬁed accuracies

CF= 3:5 mA, 10 mA, 20 mA, 50 mA, 100 mA, 200 mA, 0.5 A, 1 A, 2 A, 5 A, 10 A, 20 A

CF= 6:2.5 mA, 5 mA, 10 mA, 25 mA, 50 mA, 100 mA, 250 mA, 0.5 A, 1 A, 2.5 A, 5 A, 10 A

CF = 3: 2.5 V, 5 V, 10 V

CF = 6: 1.25 V, 2.5 V, 5 V

CF= 3: 50 mV, 100 mV, 200 mV, 500 mV, 1 V, 2 V

CF= 6: 25 mV, 50 mV, 100 mV, 250 mV, 500 mV, 1 V

±{(0.07 f

±(0.5% + 0.5% F.S.) ± [{0.04×(f

% of reading to the AC current accuracies + 0.00013 × I

% of reading + 0.00004 × I2 mA (2.5 to 200 mA), add to the DC current accuracy speciﬁcations

Apparent power accuracy + ( 1.0004-PF

-1

(inﬂuence from the power factor when PF=0%/100)})] ± 1 digit

when voltage and current are at the measurement range rated input

-1

(PF/1.0002)) + sin-1{(inﬂuence from the power factor when PF=0%)/100}] deg ± 1 digit

when voltage and current are at the measurement range rated input

)% + 0.3% F.S.}

-10)}%]

% of reading + 0.004 × I2 mA (0.5 to 20 A) or

) - ( 1-PF2) × 100%

(CF 3 and signal <30% F.S.) or,

(CF 6 and signal <60% F.S.), and

≤ 200 Hz with frequency ﬁlter on

Ф× (inﬂuence when PF=o)%}]

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Power Meter

5335B

Speciﬁcations (cont.)

Harmonic Measurement Parameters

Measurement method PLL synchronization

Frequency range PLL frequency source range 10 Hz to 1.2 kHz (typical)

FFT data length 1024

Window function Rectangle

Fundamental frequency (Fund. freq.) 10 Hz to 75 Hz 75 Hz to 150 Hz 150 Hz to 300 Hz 300 Hz to 600 Hz 600 Hz to 1200 Hz

Sample rate

(Fund. freq.) x

1024 (Fund. freq.) x 512

Window width 1 2 4 8 16

Upper limit of analysis orders 50 32 16 8 4

Harmonic Measurement Accuracy (when line ﬁlter is off)

Frequency 10 Hz ≤ f < 45 Hz 45 Hz ≤ f ≤ 440 Hz 440 Hz < f ≤ 1 kHz 1 kHz < f ≤ 2.5 kHz 2.5 kHz < f ≤ 5 kHz

Voltage and current ±0.15% ± 0.35% F.S. ±0.15% ± 0.35% F.S. ±0.20% ± 0.35% F.S. ±0.80% ± 0.45% F.S. 3.05% ± 0.45% F.S.

Power ±0.15% ± 0.50% F.S. ±0.20% ± 0.50% F.S. ±0.40% ± 0.50% F.S. 1.56% ± 0.60% F.S. 5.77% ± 0.60% F.S.

Oscilloscope Function

Channels 2

Measurement Voltage and current

Bandwidth (-3 dB) 10 kHz

Sample rate 100 kS/s

Record length 300 points/channel

Horizontal scale (Accuracy ±4.0%) 500 us, 1 ms, 2 ms, 5 ms, 10 ms, 20 ms, 50 ms, 100 ms, 200 ms, 500 ms

I: 2.5, 5, 10, 25, 50, 100, 250, 500 mA/div, 1 A, 2.5 A, 5 A, 10 A/div,

I: 5, 10, 20, 50, 100, 200, 500 mA/div, 1 A, 2 A, 5 A, 10 A, 20 A/div,

Vertical scale ranges

(Accuracy ±4.0%)

CF 3

CF 6

Maximum input voltage (DC+AC peak) 1800 V

Maximum input current (DC+AC peak) 60 A

Environmental and Safety

Temperature

Operating: 41 ºF to 104 ºF (5 °C to 40 °C) Storage: -4 ºF to 122 ºF (-20 °C to 50 °C)

Humidity 20% RH to 80% RH (non-condensing)

Electromagnetic compatibility IEC 61326

Safety IEC 61010-1, EN 61010-1, Measurement 600 V CAT II

General

Display 4.3” TFT-LCD display, 480 x 272

Remote Interfaces USB, GPIB, RS232, LAN

Power 100 to 240 VAC, 50 / 60 Hz

Power Consumption 50 VA max.

Dimensions (W x H x D) 8.4” x 3.5” x 14” (214.5 mm × 88.2 mm × 354.6 mm)

Weight 6.2 lbs (2.8 kg)

Standard Accessories Getting started manual, instruction manual (downloadable), AC power cord, USB type A-to-type B cable, certiﬁcate of calibration

(Fund. freq.) x 256

U: 7.5, 15, 30, 75, 150, 300 V/div

U: 15, 30, 60, 150, 300, 600 V/div

(Fund. freq.) x 128 (Fund. freq.) x 64

Three-Year Warranty

v092117

www.bkprecision.com

Chapter 11

Routine Maintenance

This chapter describes general maintenance items and maintenance methods of the 5335B power meter.

11.1 Self-inspection

The 5335B power meter has a self-inspection function. See “Power-on Self-Test” of Chapter 3 “Inspecting the Instrument” of 5335B Installation Instructions for detailed steps of self-inspection.

11.2 Error Information References

The 5335B power meter has a detailed error and prompt information function, so as to help the user to easily carry out positioning and measurement during measurement and use. This section describes all error information of the 5335B power meter as well as error causes and disposals. All prompt information is listed.

11.2.1 Prompt Message List

11.2.2 Error information list

Error information Error information explanation

Error description No USB peripheral is found.

usb is not detected

Save screen fail

Possible cause No USB peripheral is inserted.

Disposal Insert the U disc type USB peripheral and then copy the screen.

Error description The screen is not saved successfully.

Possible cause USB is disconnected.

Disposal Reinsert the USB peripheral.

CHAPTER 11. ROUTINE MAINTENANCE 51

Error information Error information explanation

Start time is less than current

End time is less than current

Timer must be larger than zero.

Harmonic open fail

Error description The start time is less than the current time.

Possible cause The integral setting is incorrect.

Disposal Reset the integral start time.

Error description The ending time is less than the current time.

Possible cause The integral setting is incorrect.

Disposal Reset the integral ending time.

Error description The set time must be larger than zero.

Possible cause The set integral time is not correct.

Disposal Reset the set integral time.

Error description The harmonic function cannot be enabled.

Possible cause Communication abnormality

Integ open fail

Integ start fail

Integ stop fail

Disposal Check the communication cable.

Error description The integral function cannot be enabled.

Possible cause Communication abnormality

Disposal Check the communication cable.

Error description The integral function cannot be started.

Possible cause Communication abnormality

Disposal Check the communication cable.

Error description The integral function cannot be stopped.

Possible cause Communication abnormality

Disposal Check the communication cable.

CHAPTER 11. ROUTINE MAINTENANCE 52

Error information Error information explanation

Error description The oscilloscope function cannot be enabled.

Scope openfail

Time set fail

Cal zero fail

Possible cause Communication abnormality

Disposal Check the communication cable.

Error description Time setting fails.

Possible cause Time setting is illegal.

Disposal Reset the system time.

Error description Zero calibration fails.

Possible cause Communication abnormality

Disposal Check the communication cable.

Table 11.1: Errors

11.3 Daily maintenance

Introduce basic maintenance in daily use of equipment. Such as cleaning, self-maintenance allowed to be performed by the user, etc.

11.3.1 Equipment cleaning

Use dry cloth or slightly wet cloth to gently wipe the equipment. Do not arbitrarily wipe the inside of the instrument. Cut o the power supply before cleaning.

11.3.2 Initialize

When this operation is implemented, the system settings are recovered to the factory default values.

1. Select “SYSTEM > INITIAL” in the “Menu” interface to enter the system initialization interface. See the following gure.

2. Select the menu items to be initialized (blue symbol background) via button. Menu items with characters ## following should be initialized; ## indicates that the items will not be initialized.

3. Press the soft key corresponding to the symbol on the right of the interface to determine whether to initialize this menu item. Or use the soft key “ ” (for initialization of all menu items) or “ ” (no initialization for all menu items) in the lower part of the interface.

4. Press the “START” soft key to initialize system settings. Press the ESC to exit.

CHAPTER 11. ROUTINE MAINTENANCE 53

Prompt information Explanation of prompt information

Cal Zero is working! The instrument is calibrating the zero point.

Cal Zero is completed! The instrument has completed zero point calibration.

Test screen Self-inspection of LCD screen

Test dsp Self-inspection of DSP.

Test beep Self-inspection of the buzzer.

SelfTest is nished! The instrument has nished the self-test.

Softkey is not available The current soft key is not available.

Time set ok! The time setting is completed.

Meter Initialization Initialization of general measurement

Integ Initialization Initialization of integral function

Scope Initialization Initialization of the oscilloscope function

Harmonic Initialization Initialization of the harmonic function

Inrush Initialization Initialization of the inrush function

Setup Initialization Initialization of setup

System Initialization Initialization of the system

Initialization is nished! Initialization is nished.

Integ start Integration is started.

Integ stop Integration is stopped.

Integ time up The integral time is up.

Max page has been reached.

One page should exist at least

Not used in current state The current operation is not available.

Please reset rst Please reset rst.

It displays The maximum page has been reached.

One page should exist at least.

11.4 Troubleshooting

This section describes operations to be carried out by the user in case of failure of the instrument. Preparation before contact

When the instrument fails, check the following:

• Check whether the power meter is powered up.

• Check whether the power meter is started normally.

• Check whether the instrument fuse is in good conditions.

• Check whether other connectors are in good conditions and whether cables, plugs and other parts are connected properly.

• Check whether the system conguration of the instrument is correct during use.

• Check whether self-inspection of the instrument is successful and whether the specications and performance are within the indicator ranges.

CHAPTER 11. ROUTINE MAINTENANCE 54

• Check whether the instrument displays error information.

• Use other instruments instead of this instrument for conrmation.

Chapter 12

LIMITED THREE-YEAR WARRANTY

B&K Precision Corp. warrants to the original purchaser that its products and the component parts thereof, will be free from defects in workmanship and materials for a period of three years from date of purchase.

B&K Precision Corp. will, without charge, repair or replace, at its option, defective product or component parts. Returned product must be accompanied by proof of the purchase date in the form of a sales receipt.

To help us better serve you, please complete the warranty registration for your new instrument via our website www.bkprecision.com

Exclusions: This warranty does not apply in the event of misuse or abuse of the product or as a result of unauthorized alterations or repairs. The warranty is void if the serial number is altered, defaced or removed.

B&K Precision Corp. shall not be liable for any consequential damages, including without limitation damages resulting from loss of use. Some states do not allow limitations of incidental or consequential damages. So the above limitation or exclusion may not apply to you.

This warranty gives you specic rights and you may have other rights, which vary from state-to-state.

B&K Precision Corp.

22820 Savi Ranch Parkway

Yorba Linda, CA 92887

www.bkprecision.com

714-921-9095

Chapter 13

Service Information

Warranty Service: Please go to the support and service section on our website at bkprecision.com to obtain an

RMA #. Return the product in the original packaging with proof of purchase to the address below. Clearly state on the RMA the performance problem and return any leads, probes, connectors and accessories that you are using with the device.

Non-Warranty Service: Please go to the support and service section on our website at bkprecision.com to obtain an RMA #. Return the product in the original packaging to the address below. Clearly state on the RMA the performance problem and return any leads, probes, connectors and accessories that you are using with the device. Customers not on an open account must include payment in the form of a money order or credit card. For the most current repair charges please refer to the service and support section on our website.

Return all merchandise to B&K Precision Corp. with prepaid shipping. The at-rate repair charge for Non-Warranty Service does not include return shipping. Return shipping to locations in North America is included for Warranty Service. For overnight shipments and non-North American shipping fees please contact B&K Precision Corp.

B&K Precision Corp.

22820 Savi Ranch Parkway

Yorba Linda, CA 92887

bkprecision.com

714-921-9095

Include with the returned instrument your complete return shipping address, contact name, phone number and description of problem.

Version – May 25, 2018

BK Precision 5335B User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

General Information

1.1 Features

1.2 Front Panel

1.3 Rear Panel Summary

1.4 Power Line Connection

1.4.1 Fuse Requirements

1.4.2 Power-up Sequence

Menu

2.1 MENU > SYSTEM menus

2.1.1 System Information Menu

2.1.5 System Initialize Menu

2.2.1 Averaging Setup

2.2.2 External Sensor Setup

2.2.3 Other settings: Filter and Crest Factor

2.2.4 Inrush Measurement Setup

2.3 CAL ZERO

2.4 RATIO SET

External Current Sensor

Measurement Setup

4.0.1 Crest factor

4.0.2 Set Measurement Range

4.1 Voltage and current range

4.1.1 Fixed range

4.1.2 Auto Range

4.3 Filter and Crest Factor Setting

4.4 Averaging Function

4.4.1 Index averaging

4.4.2 Linear averaging

4.4.3 Harmonic measurement averaging

Meter Display

5.0.1 Operation steps

Waveform Display Function

6.0.1 Trigger Status

6.1.1 External trigger input (Ext)

Harmonic Measurement Function

7.1 Bar Graph Mode

7.3.1 Parameters

7.3.2 Distortion factor

7.3.3 PLL source

Integral Operation Function

8.2.1 Integral operation

8.4.1 Parameter descriptions:

Remote Operation

9.1 RS-232 Interface

9.1.1 RS-232 troubleshooting

9.1.2 RS-232 Communication settings

9.2 USB interface

9.3 GPIB interface

9.4 LAN interface

Routine Maintenance

11.1 Self-inspection

11.2 Error Information References

11.2.1 Prompt Message List

11.2.2 Error information list

11.3 Daily maintenance

11.3.1 Equipment cleaning

11.3.2 Initialize

LIMITED THREE-YEAR WARRANTY

Service Information