BC Biomedical ESU-2050 Series Electrosurgical Unit Analyzer User Manual

ELECTROSURGICAL

UNIT ANALYZER

ESU-2050 SERIES

USER MANUAL

BC BIOMEDICAL

ESU-2050 SERIES

TABLE OF CONTENTS

WARNINGS, CAUTIONS, NOTICES ............................................................................ ii

DESCRIPTION ............................................................................................................. 1

TYPICAL TEST SETUP ............................................................................................... 4

OVERVIEW .................................................................................................................. 5

KEYS ............................................................................................................................ 21

POWER UP SETTINGS .............................................................................................. 23

GRAPH MODE ............................................................................................................. 25

ERROR MESSAGES ................................................................................................... 28

DFA

®

TECHNOLOGY .................................................................................................. 29

COMMUNICATION PROTOCOL ................................................................................. 30

COMMUNICATION COMMAND SUMMARY ............................................................... 34

MANUAL REVISIONS .................................................................................................. 36

LIMITED WARRANTY ................................................................................................. 36

SPECIFICATIONS ....................................................................................................... 37

NOTES ......................................................................................................................... 39 i

WARNING - USERS

The ESU-2050 Series Analyzers are for use by skilled technical personnel only.

WARNING - USE

The ESU-2050 Series Analyzers are intended for testing only and they should never be used in diagnostics, treatment or any other capacity where they would come in contact with a patient.

WARNING - MODIFICATIONS

The ESU-2050 Series Analyzers are intended for use within the published specifications. Any application beyond these specifications or any unauthorized user modifications may result in hazards or improper operation.

WARNING - CONNECTIONS

All connections to patients must be removed before connecting the DUT to the Analyzer. A serious hazard may occur if the patient is connected when testing with the Analyzer.

Do not connect any leads from the patient directly to the Analyzer or DUT.

WARNING - POWER ADAPTOR

Unplug the Power Adaptor before cleaning the surface of the Analyzer.

WARNING - LIQUIDS

Do not submerge or spill liquids on the Analyzer.

Do not operate the Analyzer if internal components not intended for use with fluids may have been exposed to fluid, as the internal leakage may have caused corrosion and be a potential hazard.

ii

CAUTION - SERVICE

The ESU-2050 Series Analyzers are intended to be serviced only by authorized service personnel.

Troubleshooting and service procedures should only be performed by qualified technical personnel.

CAUTION - ENVIRONMENT

The ESU-2050 Series Analyzers are intended to function between 15 and 30 °C.

Exposure to temperatures outside this range can adversely affect the performance of the Analyzer.

CAUTION - CLEANING

Do not immerse. The Analyzer should be cleaned by wiping gently with a damp, lint-free cloth. A mild detergent can be used if desired.

CAUTION - INSPECTION

The ESU-2050 Series Analyzers should be inspected before each use for wear and should be serviced if any parts are in question.

iii

NOTICE – CE

The ESU-2050 Series Analyzers bear the mark

Based on the following testing standards:

ELECTROMAGNETIC COMPATIBILITY DIRECTIVE

EMC – Directive 89/336/EEC and 2004/108/EC as amended by

92/31/EEC, 93/68/EEC and Directive 91/263/EEC [ TTE/SES ]

EN 61000-3-2

EN 61000-3-3

EN 61326-1:1997 + A1:1998 + A2:2001 + A3:2003

“Electrical equipment for measurement, control and laboratory use

– EMC requirements”

This equipment has been type tested by an independent, accredited testing laboratory and compliance was demonstrated to the above standard to the extent applicable.

EMISSIONS

Radiated and Line Conducted Emissions

Harmonic Current Emissions

Voltage Fluctuation and Flicker

IMMUNITY

– CLASS C

EN 61000-4-2

EN 61000-4-3

EN 61000-4-4

EN 61000-4-5

EN 61000-4-6

EN 61000-4-11

Electrostatic Discharge

Radiated Electric Field Immunity

Electrical Fast Transients / Bursts

Surge Voltage

Conducted Disturbance

Voltage Dips and Short Interrupts

LOW VOLTAGE DIRECTIVE

EC – Directive 73/23/EC

EN 61010-1:2001

“Safety requirements for electrical equipment for measurement, control, and laboratory use – General requirements”

This equipment has been type tested and compliance was demonstrated to the above standard to the extent applicable. iv

NOTICE – SYMBOLS

Symbol Description

Caution

(Consult Manual for Further Information)

RF Current Transformer

Per European Council Directive 2002/95/EC, do not

dispose of this product as unsorted municipal waste.

NOTICE – ABBREVIATIONS

A or Amps Amperes

C Celsius

CF

°

DFA

DUT

Hz k kg kHz lbs

Crest Factor degree

Digital Fast Acquisition

Device Under Test hertz kilo- (10

3

) kilogram(s) kilohertz pounds

L1, L2, L3 Location 1, 2, 3

M Mega- (10

6

)

MHz

µ m mA mm ms

Megahertz micro- (10

-6

) milli- (10

-3

) milliampere(s) millimeter(s) millisecond(s) mV

Ω

PC millivolt(s) ohm(s)

Personal Computer p or pk peak p-p or pk-pk

RF peak-to-peak

Radio Frequency

RMS

US

V

VDC

W

Root Mean Square

United States volt(s)

Direct Current Voltage watt(s) v

NOTICE – PERFORMING TESTS

REFER TO DUT MANUFACTURER’S SERVICE MANUAL FOR

TEST PROCEDURES AND MEASUREMENT LIMITS

NOTICE – DISCLAIMER

USER ASSUMES FULL RESPONISIBILITY FOR UNAUTHORIZED

EQUIPMENT MODIFICATIONS OR APPLICATION OF EQUIPMENT

OUTSIDE OF THE PUBLISHED INTENDED USE AND

SPECIFICATIONS. SUCH MODIFICATIONS OR APPLICATIONS

MAY RESULT IN EQUIPMENT DAMAGE OR PERSONAL INJURY.

NOTICE

BC GROUP INTERNATIONAL, INC. RESERVES THE RIGHT TO

MAKE CHANGES TO ITS PRODUCTS OR SPECIFICATIONS AT

ANY TIME, WITHOUT NOTICE, IN ORDER TO IMPROVE THE

DESIGN OR PERFORMANCE AND TO SUPPLY THE BEST

POSSIBLE PRODUCT. THE INFORMATION IN THIS MANUAL HAS

BEEN CAREFULLY CHECKED AND IS BELIEVED TO BE

ACCURATE. HOWEVER, NO RESPONSIBILITY IS ASSUMED FOR

INACCURACIES.

NOTICE

– DISCLAIMER

.

– CONTACT INFORMATION

BC BIOMEDICAL

BC GROUP INTERNATIONAL, INC.

3081 ELM POINT INDUSTRIAL DRIVE

ST. CHARLES, MO 63301

USA

1-800-242-8428

ESU-2050 Series User Manual www.bcgroupintl.com

03/12

1-314-638-3800 www.bcgroupintl.com

[email protected]

Copyright © 2012

Made in the USA

Rev 10 vi

BC BIOMEDICAL

ESU-2050 SERIES

ELECTROSURGICAL UNIT ANALYZER

The ESU-2050 Series Electrosurgical Unit Analyzers is a family of high-accuracy True

RMS RF Voltmeters designed to be used in the routine performance verification of

Electrosurgical Generators. They offer a higher degree of accuracy than previously attainable with conventional Electrosurgical Unit Analyzer designs. The ESU-2050 Series has been designed to be used in conjunction with an external RF Current Transformer

(Pearson Electronics Model 411 and 4100 recommended) and external precision load resistors (Vishay Dale NH-250 Precision 1% tolerance resistors recommended) to measure various parameters relating to the routine service of Electrosurgical Generators. They are microprocessor based and utilize a combination of unique hardware and software to provide accurate and reliable test results, even from “noisy” ESU Generator waveforms such as “Spray”. The Patent Pending DFA® Technology utilized in the ESU-2050 Series allows the system to aggressively digitize the complex RF waveforms produced by

Electrosurgical Generators, analyze each individual digital data point, and provide highly accurate measurement results.

The following are highlights of some of the main features:

TRUE RMS READINGS USING DFA® TECHNOLOGY

INDUSTRY STANDARD CURRENT SENSING TECHNOLOGY

MV, MV PEAK, MA, CREST FACTOR AND POWER (WATTAGE) RANGES

LARGE GRAPHICS DISPLAY WITH CURSOR SELECTION

OF OPTIONS AND SETUP OF PARAMETERS

1% OF READING MEASUREMENT ACCURACY

DIGITAL DATA OUTPUT VIA USB AND RS232

PC BASED INTERFACE AND DATA CAPTURE PROGRAM

DIGITAL CALIBRATION

– NO POTS TO TURN

SELECTABLE DISPLAY OPTIONS

DISPLAY CONTRAST IS SOFTWARE ADJUSTABLE

TACTILE KEYS WITH AUDIO FEEDBACK

GRAPHICAL ON-SCREEN REPRESENTATION OF MEASURED RF SIGNAL

STANDARD (1000 MV) AND LOW RANGE (100 MV) WITH AUTOSCALING

CAPABILITY

CAN BE USED WITH 0.1:1 OR 1:1 VOLTAGE:CURRENT CURRENT

TRANSFORMERS

1

INTERNALLY PROTECTED INPUT CIRCUITRY GUARDS AGAINST INPUT

OVERLOAD DAMAGE

INTERNAL DATA STORAGE FOR 3 FULL DATA SETS

ESU-2050P HAS ALL THE BASIC MODEL FEATURES PLUS:

PULSED RF WAVEFORM MEASUREMENT MODE FOR LOW DUTY CYCLE

PULSED OUTPUTS OFFERED BY SOME ELECTROSURGICAL

MANUFACTURERS

STANDARD ACCESSORIES:

BC20 – 00126

BC20 – 41352

BC20 – 41341

BC20

– 00232

BC20 – 30108

BC20 – 21104

BC20

– 205XX

ACCESSORY KIT (TEST LEADS)

COMMUNICATIONS CABLE (USB)

COMMUNICATIONS CABLE (RS232)

CT CABLE (BNC)

SOFT SIDED CARRYING CASE

UNIVERSAL POWER SUPPLY

STANDARD POWER ADAPTER

(International Options, see Page 23 for details)

OPTIONAL ACCESSORIES:

BC20 – 41353 CD, ESU2050 INTERFACE SOFTWARE

BC20 – 00231 PEARSON ELECTRONICS MODEL 411 0.1:1 RATIO

CURRENT TRANSFORMER

BC20

– 00230

PEARSON ELECTRONICS MODEL 4100 1:1 RATIO

CURRENT TRANSFORMER

VISHAY-DALE 1% TOLERANCE LOAD RESISTORS:

BC20 – 00200

BC20 – 00201

BC20 – 00202

BC20 – 00203

BC20 – 00204

BC20 – 00205

BC20 – 00206

BC20 – 00207

BC20 – 00208

BC20 – 00209

BC20 – 00210

BC20 – 00211

BC20 – 00212

BC20 – 00213

BC20

– 00214

BC20

– 00215

BC20

– 00216

BC20

– 00217

5 , 250-WATT, NH-250 SERIES RESISTOR

10 , 250-WATT, NH-250 SERIES RESISTOR

20 , 250-WATT, NH-250 SERIES RESISTOR

30 , 250-WATT, NH-250 SERIES RESISTOR

50 , 250-WATT, NH-250 SERIES RESISTOR

100 , 250-WATT, NH-250 SERIES RESISTOR

200 , 250-WATT, NH-250 SERIES RESISTOR

300 , 250-WATT, NH-250 SERIES RESISTOR

500 , 250-WATT, NH-250 SERIES RESISTOR

1000 , 250-WATT, NH-250 SERIES RESISTOR

2000 , 250-WATT, NH-250 SERIES RESISTOR

3000 , 250-WATT, NH-250 SERIES RESISTOR

4000 , 250-WATT, NH-250 SERIES RESISTOR

5000 , 250-WATT, NH-250 SERIES RESISTOR

1 , 50-WATT, NH-50 SERIES RESISTOR

125 , 250-WATT, NH-250 SERIES RESISTOR

150 , 250-WATT, NH-250 SERIES RESISTOR

400 , 250-WATT, NH-250 SERIES RESISTOR

2

BC20 – 00218

BC20 – 00219

BC20 – 00220

BC20 – 00240

800 , 250-WATT, NH-250 SERIES RESISTOR

1500 , 250-WATT, NH-250 SERIES RESISTOR

10 , 50-WATT, NH-50 SERIES RESISTOR

LOAD RESISTOR BANANA JACK ADAPTER SET (2)

3

TYPICAL TEST SETUP

Unlike all conventional ESU Analyzers with lesser degrees of accuracy, the ESU-2050

Series utilizes an external Current Transformer and external precision load resistors

(values to be determined by the manufacturer’s suggested test load for the generator you are testing or servicing) for typical Electrosurgical Generator testing. Many of the world’s leading Electrosurgical generator manufacturers utilize this exact same technique when they test, service and calibrate their generators.

This methodology has several distinct advantages over conventional ESU Analyzers:

Improved accuracy and resolution capabilities

100% manufacturer recommended test load compatibility

Smaller and lighter weight instrumentation

The current transformer senses the RF current flowing through the external test load and produces a proportional voltage as an input to the ESU-2050. This input is either a direct

1 : 1 input (for current transformers with a ratio of 1 : 1 volts : amps) or a 0.1 : 1 input (for current transformers with a ratio of 0.1 : 1 volts : amps). Combining the standard and low ranges of the ESU-2050 with the use of either a 0.1:1 or 1:1 ratio current transformer, the user has full control over the ability to get high accuracy and high resolution readings from all types of Electrosurgical Generators.

4

OVERVIEW

This section looks at the layout of the ESU-2050 and gives descriptions of the elements that are present.

10 Light Touch Keys for

Selecting Parameters and

Settings:

High Impact

Plastic Case

Backlit LCD

Graphical

Display

Swivel and

Locking

Handle

RF Current

Transformer

(Donut ) Input

Power

Kycon 3 pos locking connector

USB

RS232

DB9

5

Power Switch

Rocker Switch

MAIN SCREENS

– There are 7 main screens, 5 Display Screens which have 1, 2, 3, 4 and

5 display zones respectively, a Measurement List Screen which shows available measurements and the Quick Config Screen which displays the current hardware configuration. In the Display Screens, each Display Zone can be customized to show the desired parameter from the following options:

Parameter mV RMS mA RMS

Power in Watts mV Peak

Time Pulse - On

Time - Pulse Off

Time - Total Cycle

% Duty Cycle mV Pulse mA Pulse

Watts Pulse

Abbreviation mV mA

Watts mV Pk mV Peak - to - Peak mV P-P mV Peak /

Peak - to - Peak mV Positive Peak

Only

Crest Factor

Pk/P-P mV Pk+

CF

Ton

Toff

Tcyc

%Duty mV cyc mA cyc

Wcyc

Description

This is the mV measured directly from the RF donut.

This is the converted mA measurement based on the RF donut mV to mA attenuation ratio.

This is the computed power based on load setting and mA measured.

This is the maximum mV measured in the buffer.

NOTE: This is shown as absolute value.

This is the difference between maximum mV measured and min mV measured.

This is the ratio of Peak versus

Peak to Peak millivolts.

This is the maximum positive mV measured in the buffer. For asymmetric waveforms this can determine if the output polarity is reversed.

This is the ratio of peak to rms of the measured waveform.

ESU-2050P Only

This is the duration that the pulsed waveform is on.

(See Diagram 1)

ESU-2050P Only

This is the duration that the pulsed waveform is off.

(See Diagram 1)

ESU-2050P Only

This is the total cycle time of the pulsed waveform

(i.e. Ton + Toff). (See Diagram 1)

ESU-2050P Only

This is the ratio of the pulse on time (Ton) versus cycle time (Tcyc). (See Diagram 1)

ESU-2050P Only

This represents the RMS mV over one pulsed cycle.

(See Diagram 1)

ESU-2050P Only

This represents the RMS mA over one pulsed cycle.

(See Diagram 1)

ESU-2050P Only

This represents the RMS Watts over one pulsed cycle.

(See Diagram 1)

6

Ton Toff

Tcyc mV mA

Watts

CF

Diagram 1 (ESU-2050P Only) mVcyc mAcyc

Wcyc

The available screens can be toggled through using .

Display Screens

One Display Zone Screen with mV parameter selected

Two Display Zone Screen with mV and Watts parameters selected

Three Display Zone Screen with mV, Watts and mA parameters selected

Four Display Zone Screen with mV, Watts, mA and mV

Peak parameters selected

7

Measurement List Screen:

Measured Parameters

Parameter mV RMS mA RMS

Watts RMS mV Peak mV Peak - to - Peak mV Peak /

Peak - to - Peak mV Positive Peak

Crest Factor

Time Pulse – On *

Time - Pulse Off *

Time - Total Cycle *

% Duty Cycle * mV Pulse * mA Pulse *

Watts Pulse *

* ESU-2050P Only

Abbreviation mV mA

Watts mV Pk mV P-P

Pk/P-P mV Pk+

CF

Ton

Toff

Tcyc

%Duty mV cyc mA cyc

Wcyc

Five Display Zone Screen with mV, Watts, mA and mV

Peak and CF parameters selected

8

Quick Config Screen:

Input Range

100 mV

1000 mV

Auto

Input Mode

(ESU-2050P Only)

Continuous

Pulsed

Donut Atten

0.1 : 1

1 : 1

Load

Resistance

0 –

6,500.0 ohms

NOTE: Load Resistance can be

Adjustable or Selected from the table of available resistor combinations. (See Load Table for more information).

The Quick Config Screen allows the user to see the current configuration and provide a quick method of changing the RF Current Transformer (Donut) Attenuation, Load

Resistance , Input Range or Input mode parameters.

Use to highlight the parameter to change and then to sequence through the available options.

NOTE: On power up, the Quick Config Screen will display for a few seconds to indicate the current configuration and then the default Display Screen will be displayed. The Quick

Config Screen can be accessed using .

9

DISPLAY PARAMETERS

– There are five options of parameters that can be selected for each Display Zone on the Main Screens. This allows users to custom configure the displays to best suit their needs.

Use to highlight the Display Zone to change and then to sequence through the available parameters.

NOTE: To save a custom configuration, see Power Up Settings section.

SYSTEM CONFIGURATION SCREEN – The SYSTEM SETUP MODE allows the user to adjust the configuration of the unit. The Setup Screen can be entered using the

key. The parameters can be changed by using to highlight the line and to toggle the available options. The Setup Screen can be exited using the key.

Typical Setup Screen

10

The following is a breakdown of the parameters available in the configuration of the unit and their available options:

System Setup Configuration

Parameter

Donut Atten

Input Zero

Input Range

Input Mode

(ESU-2050P Only)

Load Resistance

Load Selection

Power up with

Num A/D Samples

Display Averaging

Description Range

Selects the RF Current Transformer Attenuation in

Volts : Amp for the RF Donut being used .

Default = 0.1 : 1

0.1 : 1

1 : 1

Volts : Amps

Zeros the input circuitry based on donut being used. Each donut can have a slightly different zero offset. This function will eliminate the offset from the readings. Press the SETUP key while this parameter is selected to perform the auto –zero function.

Sets the number of A/D converter readings used in each mV RMS computation. A higher setting requires more computation and is slower, but results in a more stable reading.

Default = 32,768

Sets which display averaging parameter is to be used. Three independent averaging modes can be configured for optimum system performance.

Press Setup

Determines the input range.

Default = Auto

100 mV

1000 mV

Auto

Determines whether the unit continuously monitors the Input Signal or looks for a Pulsed Input Signal.

Default = Continuous

Used for Power (Watts) calculation only. Can be adjustable or set by a table of fixed resistors. (See

Load Selection and Load Table for more information.)

Default = 500

Determines whether the Load Resistance

Parameter is adjustable by tenths of ohms or selected from the Load Table. The Load Table is created from the Load Resistance Values set in the

Factory Setup and the Load Sets. (See Load Sets,

Load Table and Factory Setup for more information.)

Default = Table

Continuous

Pulsed

0-6,500.0 ohms

Adjustable or Table

Determines the power up mode of the ESU-2050.

The default mode shows a single mV parameter display. Set this parameter to custom to display the saved startup mode. Set this parameter to

Save current as custom to save the settings for the next time power is cycled.

Default = Defaults

Defaults

Custom

Set Current as Custom

1024

2048

4096

8192

16384

32768

Fast

Medium

Slow

11

System Setup Configuration

Parameter

Slow Averaging

Medium Averaging

Fast Averaging

Averaging Window

Load Set 1

Load Set 2

Load Set 3

Load Set 4

Description

Sets the number of mV RMS readings that are averaged when the Display Averaging parameter is set to Slow. A higher number will cause the display to update slower, but will give a more stable reading

Default = 150

Sets the number of mV RMS readings that are averaged when the Display Averaging parameter is set to Medium. A higher number will cause the display to update slower, but will give a more stable reading

Default = 15

Sets the number of mV RMS readings that are averaged when the Display Averaging parameter is set to Fast. A higher number will cause the display to update slower, but will give a more stable reading

Default = 4

Sets the range of input readings that will be averaged. If a new mV reading deviates from the average by less than this amount, it will be averaged with the rest of the readings in the display averaging buffer. Otherwise, the input is considered a step change and the display averaging buffer is flushed.

Assigns a resistance value for Set 1 from a combination of the available loads as determined by the Load Resistance Values set in the Factory

Setup. (See Custom Load Sets for more information.)

Default = None Selected

Assigns a resistance value for Set 2 from a combination of the available loads as determined by the Load Resistance Values set in the Factory

Setup. (See Custom Load Sets for more information.)

Default = None Selected

Assigns a resistance value for Set 3 from a combination of the available loads as determined by the Load Resistance Values set in the Factory

Setup. (See Custom Load Sets for more information.)

Default = None Selected

Assigns a resistance value for Set 4 from a combination of the available loads as determined by the Load Resistance Values set in the Factory

Setup. (See Custom Load Sets for more information.)

Default = None Selected

Range

1-200 Readings

1-200 Readings

1-200 Readings

0.0 to 100.0 mV

0-6,500.0 ohms

0-6,500.0 ohms

0-6,500.0 ohms

0-6,500.0 ohms

12

Parameter

Load Set 5

Load Set 6

Load Set 7

Load Set 8

Load Set 9

Load Set 10

LCD Contrast

Access Code

Software

System Setup Configuration

Description

Assigns a resistance value for Set 5 from a combination of the available loads as determined by the Load Resistance Values set in the Factory

Setup. (See Custom Load Sets for more information.)

Default = None Selected

Assigns a resistance value for Set 6 from a combination of the available loads as determined by the Load Resistance Values set in the Factory

Setup. (See Custom Load Sets for more information.)

Default = None Selected

Assigns a resistance value for Set 7 from a combination of the available loads as determined by the Load Resistance Values set in the Factory

Setup. (See Custom Load Sets for more information.)

Default = None Selected

Assigns a resistance value for Set 8 from a combination of the available loads as determined by the Load Resistance Values set in the Factory

Setup. (See Custom Load Sets for more information.)

Default = None Selected

Assigns a resistance value for Set 9 from a combination of the available loads as determined by the Load Resistance Values set in the Factory

Setup. (See Custom Load Sets for more information.)

Default = None Selected

Assigns a resistance value for Set 10 from a combination of the available loads as determined by the Load Resistance Values set in the Factory

Setup. (See Custom Load Sets for more information.)

Default = None Selected

Sets the contrast of the display screen.

Deault – 10

In some cases it may be desirable to restrict access to the System Setup. This sets the number that must be matched in order to gain access to the System Setup. If set to 0, the Access Code feature is disabled. Default – 0

Displays current software program.

13

Range

0-6,500.0 ohms

0-6,500.0 ohms

0-6,500.0 ohms

0-6,500.0 ohms

0-6,500.0 ohms

0-6,500.0 ohms

0-20

0 to 9999

(Read Only)

INPUT ZERO

– The Input Zero offset can be slightly different between RF donuts. This parameter accesses an auto-zeroing function that eliminates this offset. Independent settings are saved for the 0.1:1 RF donut and 1:1 RF donut. The user can switch between the two donut types without having to re-zero the input. The input needs to be zeroed only when a new donut is introduced.

INPUT RANGE – The input range can be scaled to accommodate the signal that is being measured. The input can be set to fixed ranges of 100mV Peak, 1000mV peak or Auto-

Ranging. For Auto-Ranging mode, the low range will be used for readings from 0.00 to

30.00 mV RMS. The high range will be used for 20.0 to 700.0 mV RMS.

INPUT MODE (ESU-2050P Only) – There are two input modes to allow for measurement of continuous signals or pulsed signals. In Continuous Mode, the input is updated every

100 mS. This mode should be used for all Electrosurgical Generator waveform outputs in general use generators. A number of Electrosurgical generator manufacturers offer generators with pulsed outputs, where there is a long duty cycle (typically ½-second or more) and the actual RF output of the generator is active for a brief period of time within the duty cycle (typically 1/10 th

second or less). In Pulsed Mode, the input to the

ESU-2050P is only processed when a signal over 20 mV in amplitude is detected. The

ESU-2050P analyzes the pulsed input waveform and can provide the RMS readings for

either the overall input or the pulse only (see Diagram 1, Page 7).

NOTE: When set to Pulsed

Mode, a small graphic appears in the upper right corner of the screen to identify to the user that the ESU-2050P is looking for a pulsed RF input.

14

CUSTOM LOAD SETS

– With twelve available loads, there is a possibility of 4096 combinations of resistors to use as a combined load. To simplify the selection of commonly used load configurations, 10 custom resistor sets are available. Each resistor set can consist of any combination of the available calibrated loads. The number of loads and load calibration is performed in the Factory Setup Screen.

A custom load set can be configured in the Setup Screen by either using to highlight the line and to toggle the available custom set resistance, or by using the key to access the Custom Resistor Set Menu.

This menu shows the current values of the loads as set in the Factory Setup Screen. The value of a Load Set can be changed by using to highlight the load line and to include or remove the resistor from the custom set. The total series resistance of the selected resistors is shown to aid in customizing the custom resistor set.

NOTE: If individual selected load values are changed in the Factory Setup Screen, the resistance value of the sets will change accordingly.

The Setup Screen can be exited using the key.

15

LOAD TABLE – Up to twelve Load Resistance Values (each with a range from 0.0 to

6,500.0 ohms) may be set in the FACTORY SETUP Configuration. These values are used in combination with the Custom Load Sets to determine the Load Configuration Table.

These options are available if the Load Selection parameter is set to “Table”. The settings will be the individual calibrated loads followed by the Load Sets. Since these values can be set to the actual values of the real resistors, this allows for maximum accuracy in the wattage calculations. By default, the following values are loaded into this table when the

ESU-2050 instruments ships from the factory:

Load #1: 10

Load #2: 20

Load #3: 30

Load #4: 50

Load #5: 100

Load #6: 200

Load #7: 300

Load #8: 500

Load #9: 1000

Load #10: 2000

Load #11: 3000

Load #12: 4000

16

LOAD CALIBRATION SCREEN

– The LOAD SETUP MODE allows the user to adjust the calibration of the loads. The Load Setup Screen can be entered using the key while in the SYSTEM SETUP MODE. The parameters can be changed by using to highlight the line and to toggle the available options. The Load

Setup Screen can be exited using the key.

Typical Load Setup Screen

17

The following is a breakdown of the parameters available in the LOAD SETUP MODE and their available options:

Load Setup Configuration

Parameter

Number Of Loads

Load 1

Load 2

Load 3

Load 4

Load 5

Load 6

Load 7

Load 8

Load 9

Load 10

Load 11

Load 12

Description

Sets the number of load resistors present in the system. This determines the maximum combination of resistors available when the Load

Selection is set to Table.

Calibrates the Load 1 Resistance Value. This should be set to the actual resistance of the smallest resistor in the system.

Calibrates the Load 2 Resistance Value. This should be set to the actual resistance of the next higher resistor in the system.

Calibrates the Load 3 Resistance Value. This should be set to the actual resistance of the next higher resistor in the system.

Calibrates the Load 4 Resistance Value. This should be set to the actual resistance of the next higher resistor in the system.

Calibrates the Load 5 Resistance Value. This should be set to the actual resistance of the next higher resistor in the system.

Calibrates the Load 6 Resistance Value. This should be set to the actual resistance of the next higher resistor in the system.

Calibrates the Load 7 Resistance Value. This should be set to the actual resistance of the next higher resistor in the system.

Calibrates the Load 8 Resistance Value. This should be set to the actual resistance of the next higher resistor in the system.

Calibrates the Load 9 Resistance Value. This should be set to the actual resistance of the next higher resistor in the system.

Calibrates the Load 10 Resistance Value. This should be set to the actual resistance of the next higher resistor in the system.

Calibrates the Load 11 Resistance Value. This should be set to the actual resistance of the next higher resistor in the system.

Calibrates the Load 12 Resistance Value. This should be set to the actual resistance of the next higher resistor in the system.

Range

1-12

0.0-6500.0 ohms

0.0-6500.0 ohms

0.0-6500.0 ohms

0.0-6500.0 ohms

0.0-6500.0 ohms

0.0-6500.0 ohms

0.0-6500.0 ohms

0.0-6500.0 ohms

0.0-6500.0 ohms

0.0-6500.0 ohms

0.0-6500.0 ohms

0.0-6500.0 ohms

18

LINE POWER

– A Kycon 3 position locking receptacle is provided for the 6 VDC Universal

Power Supply input.

The Universal Power Supply takes a Standard Power Adapter Cable with Small

Standard Product Plug and Required International Connector (See Options Below).

19

SERIAL COMMUNICATION

– There is a serial port on the rear panel. The RS-232 Port is used for Firmware upgrades and to interface with a PC.

USB COMMUNICATION – There is a USB port on the rear panel. The USB Port is used to interface with a PC.

POWER SWITCH - The main power switch for the Analyzer is located on the left side on the rear panel.

20

KEYS

Ten tactile-touch keys are provided for system operation:

– In the Main Screen, these keys will scroll through the available display screens.

In the GRAPH MODE, these keys will scroll through the horizontal zoom level

for the graph.

– In the Main Screen, these keys will toggle through the available Display Zones.

In the SETUP MODE, these keys will scroll through the available parameters.

In the GRAPH MODE, these keys will select the waveform to be displayed.

– In the Main Screen, these keys will scroll through the available parameters.

In the SETUP MODE, these keys will scroll through the available settings

for the parameters.

In the GRAPH MODE, these keys will Scroll through the selected data set.

– This key is used to toggle between the entering the SETUP MODE and the

LOAD SETUP MODE, where the calibration can be viewed and adjusted.

21

– In the SETUP MODE, this key is used to exit and return to the previously viewed

Main Screen. This will also save any changes to the internal EEPROM memory

so they will be retained even with the power turned off.

In the GRAPH MODE, this key is used to exit and return to the previously

viewed Main Screen.

In the SAVE MODE, this key is used to exit without saving.

– In the Main Screen, this key is used to enter the GRAPH MODE.

In the GRAPH MODE, this key is used to enter the SAVE MODE.

In the SAVE MODE, this key is used to save the data set.

– This key is used to toggle the HOLD MODE on and off. The HOLD MODE will

lock the latest reading into the display and the current waveform in the register.

In HOLD MODE, a small “HOLD” message will be displayed in the upper right

corner of the screen.

22

POWER UP SETTINGS

The ESU-2050 Series allows the user to customize the settings that the unit will have on

Power Up. The “Power up with” parameter in the System Setup Menu allows for the selection of either Default or Custom selections.

Use to enter the SETUP MODE. Use to select the “Power up with” parameter.

Use to change the parameters to Default, Custom or Set Current as Custom.

The Setup screen can be exited using the key.

Default

If this option is selected, the unit will Power Up to the One Display Zone screen, showing the mV reading. The default parameters shown in the other Main Screens will be the same as shown in the Main Screens Section.

Custom

If this option is selected, the unit will Power Up using the unique sets of parameters that were last customized and saved by the user. Each Main Screen will use the parameters in the Display Zones that were last configured and saved by the user.

23

Set Current as Custom

This choice is provided to create the set of custom startup screen parameters. The user simply configures each of the five display screens to show the desired parameters in each

Display Zone, selects this option and presses RETURN. The current configuration is then saved as the Custom Power Up values and will be used when the “Power up with” parameter is set to Custom. This configuration will remain the Custom configuration until it is written over using the Set Current as Custom option in the “Power up with” parameter.

24

GRAPH MODE

The GRAPH MODE allows the user to view the measured waveform in the display. The horizontal axis can be zoomed in to display higher frequency waveform components. The vertical axis is auto-scaling and cannot be adjusted. Any of the stored waveforms can be graphed. Additionally, if the unit is placed in the HOLD MODE, the user can adjust which portion of the waveform is being displayed.

NOTE: Due to the limited number of pixels in the display, this should not be used as a calibrated reference, rather as a quick check of the waveform being measured.

Use to enter the GRAPH MODE.

Use to exit the GRAPH MODE.

Selecting a Waveform

Use to select the waveform to be graphed, Ram or Location 1-3.

Waveform

Location

RAM

L1

L2

L3

25

Location Indicator

Use to select a specific portion of the waveform buffer to be graphed.

The Location Indicator is a small square that moves along the bottom of the Graph Screen to indicate where the current viewing window portion of the waveform is from within the overall data set.

Zooming

Location

Indicator

Use to zoom the graph in and out.

The Zoom Indicator is a bar that moves along the left side of the Graph Screen to indicate the Zoom level shown in the current viewing window. It adjusts from Fully Out (-) to

Fully In (+).

Zoom

Indicator

Fully Zoomed Out Fully Zoomed In

26

Saving

To save the displayed waveform, use to enter the SAVE MODE.

Use to select the desired storage location, then to save the waveform, or can be pressed to cancel the save function. Once the save is complete, the newly saved waveform will be displayed.

27

ERROR MESSAGES

Several error messages are provided to indicate invalid operating conditions. Any values that are over range will be displayed as dashes.

Watts Calculation out of range

Peak Voltage Input Out of range

When the input voltage rises above the range that is measurable by the system, the

“WARNING Input Overload” message will be shown.

Input Voltage Overload

NOTE: Although the input is protected from damage at these voltages, the user should immediately remove any input voltage when this message is shown.

28

DFA

®

TECHNOLOGY

DFA

®

Digital Fast Acquisition Technology is a revolutionary new method of measuring

ESU generator output power. A high-speed analog to digital converter is used to digitize the high frequency, high power output of the ESU generator. An RF Current Transformer is used to convert the current signal to a voltage signal, which is read by the analog to digital converter. By digitizing the signal a more accurate, frequency independent measurement can be made.

29

COMMUNICATION PROTOCOL

The communication protocol provides a means to completely configure and use the

ESU-2050 from a PC. All of the functions available through the front panel can be performed through the communication ports. All of the measurements made by the

ESU-2050 are accessible as well. This provides for hands free or automated operation of the ESU-2050.

Communication Ports

The ESU-2050 has two communication ports. Both ports use the same command format. The Serial port is configured as 115,200 Baud Rate, 8 Data Bits, 1 Stop Bit, and No Parity. The USB port appears to a PC as a serial port and is configured for

748,800 Baud Rate, 8 Data Bits, 1 Stop Bit, and No Parity.

Command Syntax

The command description is broken into 3 columns; the KEYWORD, the PARAMETER

FORM and COMMENTS.

Keyword

The KEYWORD column provides the name of the command. The actual name of the command consists of one or more keywords since SCPI commands are based on a hierarchical structure, also known as a tree system.

In such a system, associated commands are grouped together under a common node in the hierarchy, analogous to the way leaves at a same level are connected at a common branch. This and similar branches are connected to fewer and thicker branches, until they meet at the root of the tree. The closer to the root, the higher a node is considered in the hierarchy. To activate a particular command, the full path to it must be specified.

This path is represented in the following tables by placing the highest node in the left-most position. Further nodes are indented one position to the right, below the parent node.

The highest level node of a command is called the Keyword, followed by the Node,

Subnode, and then the value.

30

Not all commands require the complexity of the full command path. For example, the

Status? command doesn’t have a Node or Subnode.

Some commands allow for reading and writing data and some commands are Read Only.

To indicate a read function, a question mark (?) is placed at the end of the command path.

For example, a write command to change the load resistance to 100.5 ohms would be

“CONFigure:LOAD:VALue 100.5<cr>”, where <cr> indicates a carriage-return. For example, a mArms read command would be “READ:MArms?<cr>”, which would return a value of “xxx.x<cr><lf>” where <cr> is a carriage-return and <lf> is a linefeed.

Lowercase letters indicate the long-form of the command (for example,

CONFigure:INPut:RANGe?) and can be omitted for simplification. Uppercase letters indicate the abbreviated, or short-form, of the commands and must be included (for example, CONF:INP:RANG?).

All commands sent to the unit are terminated with a Carriage Return.

NOTE: Commands can be entered in either upper or lowercase or a mixture of the two, uppercase and lowercase. Commands sent to the ESU

–2050 are not case sensitive.

Upper and lower cases are only used when documenting the commands.

Parameter Form

The PARAMETER FORM column indicates the number and order of parameters in a command and their legal values. Parameter formats are listed in angle brackets (<>) while string parameters are simply listed.

Square brackets ([]) are used to enclose one or more parameters that are optional.

The vertical bar (|) can be read as “or” and is used to separate alternative parameter options.

The query form of a command is generated by appending a question mark (?) to the last keyword. However, not all commands have a query form, and some commands exist only in the query form. The COMMENTS column is used to indicate this.

Comments

The COMMENTS column indicates any notes.

31

CONFigure Subsystem

This group allows the user to setup the display and operational settings for the unit.

KEYWORD

CONFigure

:DISPlay

PARAMETER FORM COMMENTS

:SxZy S<display_screen_number> Z<zone_number> nn display_screen_number = 1-7 nn = Parameter for selected Zone

1 = One Parameter

2 = Two Parameters

3 = Three Parameters

4 = Four Parameters

5 = Five Parameters

0 = mV RMS

1 = mA RMS

2 = Watts RMS

3 = mV Peak

4 = mV Pk-Pk

7 = Creast Factor

8 = Time-Pulse On

9 = Time-Pulse Off

10 = Time-Total Cycle

11 = % Duty Cycle

6 = Measurement List Display (Non-editable)

7 = Quick Configuration Screen (Non-editable)

:SCReen

:AVERaging

:HOLD ON | OFF

:LOAD

:MODE

:VALue

< numeric_value >

5 = mV Pk / mV Pk-Pk

6 = mV Pk+

FAST | SLOW | MEDium

TABle | ADJustable

< numeric_value >

:SETn

:NUMber

:Ln

< numeric_value >

< numeric_value >

< numeric_value >

12 = mV Pulse Cycle

13 = mA Pulse Cycle

14 = Watts Pulse Cycle

Range 1-7

1-5 = # display zones

6=Measurement List Display

7=Quick Config Screen

Table Mode: 1-12 for individual resistors, 13-22 for resistor sets 1-10

Adjustable Mode: 0-6500.0 n = Resistor set to configure

(1-10)

< numeric_value > = 16 bit binary value of resistors to include in set ‘n’ where bit

0 = Load 1, Bit 1 = load 2…

Bit 11 = Load 12 each bit selects whether the load is included in the set.

Bit = 1 includes the load

Bit = 0 excludes the load. set of valid numeric values n = Load to configure

< numeric_value > = Actual value of load ‘n’;

0-6500.0 ohms

INPut:

Atten:

RANGe:

NUMsamples:

MODE:

0.1 | 1

100 | 1000 | AUTo

1024 | 2048 | 4096 | 8192 | 16384 | 54768

CONTinous | PULs

32

SYSTem Subsystem

This group allows the user to setup the startup mode for the unit, as well as directly control the unit, as if pressing the keys on the front panel.

PARAMETER FORM COMMENTS KEYWORD

SYSTem:

POWer

CONtrast

KEY

VER?

DEFaults | CUStom | SETCurrent

< numeric_value >

DUP | DDN | SUP | SDN | VUP |

VDN | SETup | RETurn | GSAVe |

HOLD

Numbers 1-20

Read only

READ Subsystem

This group allows the user to get measurements from the unit.

KEYWORD

READ:

PARAMETER FORM

MVrms | MArms | Warms | MVPeak |

MVPP | MVP-PP | MVPK+ | CF |

TON | TOFF | TCYC | DCYC |

MVCyc | MACyc | WCyc

DATA

LOCn

COMMENTS

Read only

Read only

Read only, ‘n’ = stored waveform location to read (1-3)

STATus Sub-system

This subsystem provides status on the operating mode of the unit including messages that would normally be seen on the display.

KEYWORD PARAMETER FORM COMMENTS

STATus?

Bit Value

0

1

1

2

2

3

4

5

4

8

16

32

6 64

7 128

Definition

Hold Mode

Graph Mode

Calibration Mode

8 256

9 512

10 1024

11 2048

Error Present mV Out of Range mA Out of Range

Watts Out of Range

12 4096 mV Peak Out of Range

13 8192 Crest Factor Out of Range

14 16384

15 32768

Read Only

33

ESU-2050 Communication Command Summary

Keywords Nodes

CONFigure DISPlay

Subnodes Values

SxZy nn x is the Screen # (1-5) and y is the Zone # (1-5). nn=0 to 13:

0=mV RMS

1=mA RMS

2=Watts RMS

3=mV Peak

4=mV Pk-Pk

5=mV Pk / mV Pk-Pk

6=mV Pk+

7=Crest Factor

8=Time-Pulse On

9=Time-Pulse Off

10=Time-Total Cycle

11=% Duty Cycle

12=mV Pulse Cycle

13=mA Pulse Cycle

14=Watts Pulse Cycle

SCReen

Range: 1-7

1-5 = # display zones

6=Measurement List Display

7=Quick Config Screen

FAST, SLOW, MEDium

HOLD

LOAD

AVERaging

ON,OFF

MODE

VALue

TABle, ADJustable

Table Mode: 1-12 for individual Resistors, 13-22 for resistor sets 1-

10

Adjustable Mode: 0-6500.0 Ohms

SETn xxxx n = Resistor set to configure, 1-10

XXXX = 16 bit Binary value of resistors to include in set 'n'

Where Bit 0 = Load 1, Bit 1 =Load 2… Bit 11 = Load 12

Each bit selects whether the load is included in the set.

Bit = 1 includes the load, Bit = 0 excludes the load.

Example: a value of 9 would select loads 4 and 1 and exclude everything else

NUMber

1-12 (determines the number of loads present in system)

Ln xxxx n = Load to configure xxxx = Actual value of load 'n', 0-6500.0 ohms.

INPut ATTen 0.1, 1 (donut attenuation)

RANGe 100, 1000, AUTo

NUMsamples 1024, 2048, 4096, 8192, 16384, 32768

MODE CONTinuous, PULsed

SYSTem POWerup DEFaults, CUStom, SETCurrent

CONtrast 0-20

KEY DUP, DDN, SUP, SDN, VUP, VDN, SETup, RETurn, GSAVe, HOLD

VERsion? [read only]

34

ESU-2050 Communication Command Summary

Keywords Nodes

READ

Subnodes Values

MVrms? Returns: mV RMS [read only]

MArms? Returns: mA RMS [read only]

WArms? Returns: Watts RMS [read only]

MVPeak? Returns: mV Peak [read only]

MVPP? Returns: mV Peak to Peak [read only]

MVP-PP? Returns: mV Peak/Peak to Peak [read only]

MVPK+? Returns: mV Positive Peak [read only]

CF?

TON?

Returns: Crest Factor [read only]

Returns: Time - Pulse On [read only]

TOFF?

TCYC?

Returns: Time - Pulse Off [read only]

Returns: Time - Total Cycle [read only]

DCYC? Returns: % Duty Cycle [read only]

MVCyc? Returns: mV Pulse Cycle [read only]

MACyc? Returns: mA Pulse Cycle [read only]

WCyc? Returns: Watts Pulse Cycle [read only]

DATA?

Returns: Entire Data Buffer [read only] Length = NUMSamples * 2

Data Format is mV in signed double byte format, Decimal place is assumed based on Input

Range (Low Range = 2DP, High Range = 1DP)

LOCn?

Returns: Saved Data Buffer at Location 'n' , n= 1-3 [read only] Length = NUMSamples * 2

Data Format is mV in signed double byte format, Decimal place is assumed based on Input

Range (Low Range = 2DP, High Range = 1DP)

STATus?

Bit Value Definition

0 1 Hold Mode

1 2 Graph Mode

2 4 Calibration Mode

3 8

4 16

5 32

6 64

7 128

8 256 Error Present

9 512 mV Out of Range

10 1024 mA Out of Range

11 2048 Watts Out of Range

12 4096 mV Peak Out of Range

13 8192 Crest Factor Out of Range

14 16384

15 32768

35

MANUAL REVISIONS

Revision #

Rev 01

Rev 02

Rev 03

Rev 04

Rev 05

Rev 06

Rev 07

Rev 08

Rev 09

Rev 10

Program #

DT7376A

DT7376A

DT7376B

DT7376C

DT7376CD

DT7376CE

DT7376CE

DT7376CE

DT7376CE

DT7376CE

Revisions Made

Origination

Specifications Updates

Factory Setup, Graph/Save Functions, PC Interface and Format Updated

Input Range, Input Mode, Load Sets, Load Table and Specifications Updated

New Measurements Added and Specs Updated,

Load Setup Screen and Measurement List Screen

Implements 2050P model, Communication Package

100mV Accuracy Specification Updated,

Miscellaneous edits

Address Updated

Miscellaneous Edits

Specifications Updated, Format Updated, Photos

Updated

LIMITED WARRANTY

WARRANTY : BC GROUP INTERNATIONAL, INC. WARRANTS ITS NEW PRODUCTS TO BE FREE

FROM DEFECTS IN MATERIALS AND WORKMANSHIP UNDER THE SERVICE FOR WHICH THEY

ARE INTENDED. THIS WARRANTY IS EFFECTIVE FOR TWELVE MONTHS FROM THE DATE OF

SHIPMENT.

EXCLUSIONS: THIS WARRANTY IS IN LIEU OF ANY OTHER WARRANTY EXPRESSED OR

IMPLIED, INCLUDING, BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY

OR FITNESS FOR A PARTICULAR PURPOSE.

BC GROUP INTERNATIONAL, INC. IS NOT LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL

DAMAGES.

NO PERSON OTHER THAN AN OFFICER IS AUTHORIZED TO GIVE ANY OTHER WARRANTY OR

ASSUME ANY LIABILITY.

REMEDIES: THE PURCHASER'S SOLE AND EXCLUSIVE REMEDY SHALL BE: (1) THE REPAIR OR

REPLACEMENT OF DEFECTIVE PARTS OR PRODUCTS, WITHOUT CHARGE. (2) AT THE OPTION

OF BC GROUP INTERNATIONAL, INC., THE REFUND OF THE PURCHASE PRICE.

P:/Manuals/BCGroup/…/ESU-2000/ESU-2050_Series_UM_Rev10.doc

36

SPECIFICATIONS

INPUT

INPUT

COMPATIBILITY

VOLTAGE (RMS)

VOLTAGE (pk, pk-pk)

ACCURACY,

100 mV RANGE

RF MEASUREMENT

IMPEDANCE

CONNECTION

MAXIMUM

VOLTAGE

FREQUENCY

CURRENT

TRANSFORMER

50 Ω

BNC ( 50 Ω)

3.3 V pk-pk

Internally Protected

10 kHz – 10 MHz

Pearson Electronics (Typical)

ATTENUATION

RATIOS

100 mV RANGE

1000 mV RANGE

100 mV RANGE

1000 mV RANGE

Input

≤ 10.0 mV

10.0 mV < Input ≤

35.0 mV

Input

> 35.0 mV

0.1:1 (Pearson Model 411)

1:1 (Pearson Model 4100)

User Selectable

0.20 – 70.00 mV RMS

0.01 mV Resolution

2.0

– 700.0 mV RMS

0.1 mV Resolution f ≤ 1.0 MHz

0.20 – 100.0 mV

0.01 mV Resolution

2.0 – 1000.0 mV

0.1 mV Resolution

1.0 MHz < f ≤

2.5 MHz f > 2.5 MHz

± 1% Reading

Or ± 0.25 mV

± 1% Reading

Or ± 0.25 mV

± 1% Reading

Or ± 0.25 mV

± 1% Reading

Or ± 0.25 mV

± (1% Reading

+ 0.5% Range)

± (1% Reading

+ 0.5% Range)

± 1% Reading

Or ± 1.0 mV

± (6% Reading +

0.5% Range)

± (6% Reading +

5% Range)

ƒ ≤ 2.5 MHz ƒ > 2.5 MHz

ACCURACY,

1000 mV RANGE

Input ≤ 50 mV

50 mV < Input ≤

400.0 mV

Input > 400.0 mV

± 1% Reading

Or ± 1 mV

± 1% Reading

± (1% Reading +

0.25% Range)

± 1% Reading

Or ± 1 mV

± 4% Reading

± (4% Reading +

0.25% Range)

37

POWER

CALCULATED RANGES

CURRENT

(with 0.1:1 CT)

CURRENT

(with 1:1 CT)

VOLTAGE (mV pk, mV pk-pk)

POWER

CREST FACTOR

100 mV RANGE

1000 mV RANGE

100 mV RANGE

1000 mV RANGE

100 mV RANGE

1000 mV RANGE

2.0 - 700.0 mA RMS

0.1 mA Resolution

20 - 7000 mA RMS

1 mA Resolution

0.20 - 70.0 mA RMS

0.01 mA Resolution

0.2 - 700.0 mA RMS

0.1 mA Resolution

0.0 - 1.0 mV

0.1 mV Resolution

0.0 - 1.0 mV

0.1 mV Resolution

0 - 999.9 W

0.1 W Resolution

1.4 – 500

0.1 Resoluton

PULSE MODE TIMING MEASUREMENT (ESU-2050P ONLY)

RESOLUTION 0.1 ms

ACCURACY ± 0.2 ms

PHYSICAL, ENVIRONMENTAL, AND ELECTRICAL

DISPLAY

128 X 64 Pixels Graphical LCD,

White LED Backlight

SETUP EEPROM, All Parameters

MEMORY

OPERATING

RANGE

STORAGE RANGE

SIZE

CONSTRUCTION

WEIGHT

DATA STORAGE 3 Sets of 32768 Data Points

RETENTION 10 Years w/o Power

ENCLOSURE

FACE

15 - 30 ° C

20 - 80% RH, Non-Condensing

-40 - 60 ° C

3.4” x 9.1” x 8.0”

86.4 x 231.4 x 203.2 mm

ABS Plastic

Lexan, Back Printed

≤ 3 lbs. (1.36 kg)

CONNECTIONS

RS-232 COMM.

USB

DB-9 (Female) Receptacle

USB ‘B’ Receptacle, USB 2.0 Compliant

POWER Kycon 3-position Locking Receptacle

6 VDC, minimum 500 mA

38

NOTES

39

NOTES

40

NOTES

41

NOTES

42

BC GROUP INTERNATIONAL, INC.

3081 ELM POINT INDUSTRIAL DRIVE

ST. CHARLES, MO 63301

USA

1-800-242-8428

1-314-638-3800 www.bcgroupintl.com

[email protected]

ESU-2050 SERIES User Manual

03/12 – Rev 10

Copyright © 2012

Made in the USA