B+K precision BK8510B User manual

Contents

1 General Information 5

1.1 Product Overview 5

1.2 Package Contents 5

1.3 Product Dimensions 6

1.4 Rackmount Installation 6

1.5 Front Panel Overview 6

1.5.1 Combination Keys 7

1.6 Rear Panel Overview 8

1.7 Display Overview 9

2 Getting Started 10

2.1 Input Power 10

2.2 Fuse Requirements 10

2.2.1 Fuse Replacement 10

2.3 Input Connections 10

2.4 Preliminary Check 11

2.4.1 Verify AC Input Voltage 11

2.4.2 Self-test Errors 12

2.4.3 Input Check 12

2.4.4 Check Model and Firmware Version 12

3 Front Panel Operation 13

3.1 Local Mode/Remote Mode 13

3.2 Constant Current (CC) Mode 13

3.2.1 Congure CC Parameters 13

3.3 Slew Rate Measurement and Actual Transition time 14

3.4 Constant Voltage (CV) Mode 14

3.4.1 Congure CV Parameters 14

3.5 Constant Power (CW) Mode 14

3.5.1 Congure CW Parameters 14

3.6 Constant Resistance (CR) Mode 15

3.6.1 Congure CR Parameters 15

4 Front Panel Operation 16

4.1 Local Mode/Remote Mode 16

4.2 Constant Current (CC) Mode 16

4.2.1 Congure CC Parameters 16

4.3 Slew Rate Measurement and Actual Transition time 17

4.4 Constant Voltage (CV) Mode 17

4.4.1 Congure CV Parameters 17

4.5 Constant Power (CW) Mode 17

4.5.1 Congure CW Parameters 17

4.6 Constant Resistance (CR) Mode 18

4.6.1 Congure CR Parameters 18

4.7 CR-LED Test Function 18

4.7.1 Setup 18

4.7.2 External Triggering 19

5 Rear Panel Functions 20

5.1 Remote Sensing 20

5.2 External Triggering 21

5.3 Current Monitoring (I Monitor) 21

5.3.1 Remote Sensing 21

5.3.2 Current Monitoring (I Monitor) 21

6 Advanced Functions 22

6.1 Short Operation 22

6.2 Short-circuit Analog Function 22

6.3 Transient Operation 22

6.3.1 CC Mode 23

6.3.2 CV, CW, and CR modes 23

6.4 LIST Operation 23

6.4.1 Congure List 24

6.4.2 Run List 24

6.4.3 Disable List Mode 25

6.5 Battery Test Function 25

6.5.1 Test Conguration 25

6.5.2 Enable Battery Test Mode 26

6.5.3 Recall Battery File 26

6.5.4 Start Battery Test 26

6.6 Program Mode 26

6.6.1 Example: Small AC/DC power supply test 26

6.6.2 Start Auto Test File 31

6.6.3 Recall Test File 31

6.7 Measurement of Voltage Rise Time 31

6.7.1 Set initial Voltage and Final Voltage 31

6.8 Ripple Function 32

7 Conguration Functions 33

7.1 VON Function 33

7.2 Menu Operation 33

7.3 System Menu 33

7.4 Menu Options 33

7.5 System Menu (System) 34

7.6 Cong Menu 35

8 System Settings 36

8.1 Run Recall Edit 36

8.2 To recall the settings 36

8.3 To run the OPP test 36

8.4 Key Lock 36

8.5 Restore Factory Default Settings 37

8.5.1 Congure Power-On State 37

8.5.2 Load On Knob 38

8.5.3 Congure Trigger Source 38

8.5.4 Save/Recall Instrument Settings 38

8.5.5 Select Storage Group 39

8.5.6 Save Settings 39

8.5.7 Recall Settings 39

8.5.8 Display Input On Timer 40

8.5.9 Remote Interface Setup 40

8.5.10 RS-232 40

8.5.11 CONFIG Menu 41

8.5.11.1 Von Operation 41

8.5.12 Congure Protection Settings 41

8.5.13 PROTECT MENU 41

8.5.14 Max-P A-Limit P-Limit Time 41

8.5.15 Overcurrent Protection (OCP) 42

8.5.16 Overpower Protection (OPP) 43

8.5.17 Recall OPP File 44

8.5.18 Overvoltage Protection (OVP) 45

8.5.19 Over-temperature Protection (OTP) 45

8.5.20 Reverse Voltage Protection (LRV/RRV) 45

8.5.21 Congure Timed Input 45

8.5.22 Measurement Congurations 46

9 Protection Functions 47

9.1 OCP Test Function 47

9.2 OPP Test Function 48

9.3 OPP TEST 48

9.4 Over Voltage Protection (OVP) 48

9.5 Over Current Protection (OCP) 49

9.6 Over Power Protection (OPP) 49

9.7 Over Temperature Protection (OTP) 49

9.8 Reverse Voltage Protection (LRV) 50

10 Remote Operation 51

10.1 Interface Connection 51

10.2 Serial Interface 51

10.2.1 GPIB 51

10.2.2 USBTMC 51

10.2.3 Remote Commands 51

11 Troubleshooting Guide 52

11.1 General 52

11.2 Remote Control 52

11.3 Error Information References 52

11.4 Exception handling 52

12 Specications 54

13 Service Information 55

14 LIMITED THREE-YEAR WARRANTY 56

General Information

1.1 Product Overview

The 8500B Series DC Electronic Loads are versatile instruments used for static and dynamic testing of DC power supplies,

batteries, DC-to-DC converters, battery chargers, and other applications including fuel-cell, and solar cell test. Primary

modes include constant voltage (CV), constant current (CC), constant resistance (CR), and constant power (CW). A

wide range of dynamic loading applications can also be simulated through user-programmable slew rates, load levels,

duration, and conducting voltage. Further, transient, list mode, battery mode, and LED modes further extend testing

capabilities. Versatile triggering options allow the dynamic load behavior to be synchronized with other events. The DC

load is remotely programmable via the TTL serial interface. This interface requires 0-5V signal levels and can connect

to typical serial ports via an adapter such as the IT-E132B.

Features:

•CC/CV/CR/CW operating modes

•List mode

•Transient mode

•Measurement speed up to 40 kHz

•Remote sense function

•Battery test function

•OCP and OPP automatic test

•CR-LED function

•Store/recall up to 100 setups

•Analog current monitoring

•Adjustable slew rate in CC mode

•OVP/OCP/OPP/OTP and reverse voltage protection

1.2 Package Contents

Please inspect the instrument mechanically and electrically upon receiving it. Unpack all items from the shipping carton,

and check for any obvious signs of physical damage that may have occurred during transportation. Report any damage

to the shipping agent immediately. Save the original packing carton for possible future reshipment. Every instrument is

shipped with the following contents:

•8500B series DC Electronic load

•IT-E132B USB to TTL adapter

•AC Power Cord

•Certicate of Calibration

•Test Report

Verify that all items above are included. If anything is missing, please contact B&K Precision.

1.3 Product Dimensions

All models are designed to t in a standard 19-inch rackmount. The dimensions are shown in Figure 1.1.

Figure 1.1 External Dimensions - Half-rack models

1.4 Rackmount Installation

The instrument can be installed in a standard 19 inch rack. For half-rack models, the optional rackmount kit IT-E151 is

required. Figure 1.2 shows one of the half-rack sized units using the IT-E151 rackmount kit. This rackmount kit also

accomodates up to two half-rack models installed side by side. The full size 8514B includes rack mounting ears.

Figure 1.2 Half-Rack sized Unit

1.5 Front Panel Overview

See Figure 1.3.

Item Description

1 VFD Display

2 Power Switch

3 Numeric Input and Advanced Functions

4 Mode keys and Input Control

5 Navigation Keys

6 Input Terminals

7 Rotary Input Knob

Figure 1.3 Front Panel

1.5.1 Combination Keys

Press button rst and then other keys to activate the more advanced functions.

+Turn short circuit on or o.

+Start or stop transient condition.

+Set LIST operation parameters.

+Store the DC Load state in non-volatile memory.

+Turn on or o battery testing function.

+Enter auto test function.

+Display product’s Model/SN/Version.

+System menu setting

+Congure menu setting

+Press this button if you need a pause when running an auto test le.

+Cause an immediate trigger.

+Enter OCP test function.

+Set detailed parameters in CC/CV/CW/CRmode.

+Enter OPP test function.

+Recall the DC Load state from non-volatile memory.

+Key lock function

1.6 Rear Panel Overview

The rear panel connections are shown in Figure 1.4.

Item Description

1 Power Input and Fuse Holder

2 AC Voltage Switch

3 Current Monitor Output

4 Remote Sense and Trigger Input

5 TTL (5V) Communication DE-9 Connector

Figure 1.4 Rear Panel

1.7 Display Overview

Item Description

1 Measured Voltage

2 Measured Current

3 Measured Power

4 Set Value

5 Input O indicator, lit when input is o

6 Operation mode indicators (CC, CV, CW, CR)

12 Remote control active indicator

13 Error indicator

14 Waiting for Trigger indicator

15 Timer indicator

16 External indicator

16 Remote Sense active indicator

17 Protection event indicator

18 Auto range

19 Key Lock indicator

20 Shift indicator

Getting Started

Before connecting and powering up the instrument, please review and go through the instructions in this chapter.

2.1 Input Power

The load has a selectable AC input that accepts line voltage input within:

Voltage Frequency

115 V (+/-10%) or 230 V (+/- 10%) 47 Hz – 63 Hz

Table 2.1 Input Power Requirements

Use the line voltage selector switch in the back to switch between 110 V and 220 V operation.

Disconnect all cables including the power cord from the instrument when changing the instrument’s line

voltage. After changing the line voltage setting, ensure the instrument has fuses of the proper ratings and types for

the selected line voltage before applying line power.

2.2 Fuse Requirements

An AC input fuse is necessary when powering the instrument. Below is a table of the fuse required for all models operating

with either 110 VAC or 220 VAC input. See Table 2.2. The fuses are 5mm x 20mm High Energy Slow Blow type

(ceramic casing with sand ll).

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

8542B 1.25 A, 250 V 500 mA, 250 V

8500B 1.25 A, 250 V 500 mA, 250 V

8502B 1.25 A, 250 V 500 mA, 250 V

8510B 2.5 A, 250 V 1.25 A, 250 V

8514B 2.5 A, 250 V 1.25 A, 250 V

Table 2.2 Fuse Ratings

2.2.1 Fuse Replacement

Follow the steps below to replace to check the fuse:

1. Locate the fuse box next to the AC input connector in the rear panel, see Figure 2.1.

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

3. Check and replace fuse (if necessary) for the desired line voltage operation.

2.3 Input Connections

The main DC input terminal is a screw type binding post terminal located in the front panel, holes are included for

inserting wires, and the binding post also includes “banana jack” connections. Each connection allows for dierent

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