Metron QA-ES Service manual

QA-ES

User & Service Manual

QA-ES Electrosurgical Analyzer

P/N 14025

Copyright  2001 by METRON. All rights reserved.

METRON:

USA __ FRANCE ________________ NORWAY________________

1345 Monroe NW, Suite 255A 30, rue Paul Claudel Travbaneveien 1
Grand Rapids, MI 49505 91000 Evry, France N-7044 Trondheim, Norway
Phone: [phone] Phone: [phone] Phone: [phone]
Fax: [phone] Fax: [phone] Fax: [phone]
E-mail: [e-mail] E-mail: [e-mail] E-mail: [e-mail]

Disclaimer

METRON provides this publication as is without warranty of any kind, either express or implied,
including but not limited to the implied warranties of merchantability or fitness for any particular pur ­pose. Further, METRON reserves the right to revise this publication and to make changes from time
to time to the content hereof, without obligation to METRON or its local representatives to notify any
person of such revision or changes. Some jurisdictions do not allow disclaimers of expressed or im ­plied warranties in certain transactions; therefore, this statement may not apply to you.

Limited Warranty

METRON warrants that the QA-ES Electrosurgical Analyzer will substantially conform to pub­lished specifications and to the documentation, provided that it is used for the purpose for which it was
designed. METRON will, for a period of twelve (12) months from date of purchase, replace or repair
any defective system, if the fault is due to a manufacturing defect. In no event will METRON or its lo­cal representatives be liable for direct, indirect, special, incidental, or consequential damages arising
out of the use of or inability to use the QA-ES Electrosurgical Analyzer, even if advised of the possi­bility of such damages. METRON or its local representatives are not responsible for any costs, loss of
profits, loss of data, or claims by third parties due to use of, or inability to use the QA-ES Electrosur­gical Analyzer. Neither METRON nor its local representatives will accept, nor be bound by any other
form of guarantee concerning the QA-ES Electrosurgical Analyzer other than this guarantee. Some ju­risdictions do not allow disclaimers of expressed or implied warranties in certain transactions; there ­fore, this statement may not apply to you.

ii

Table of Contents

1. Introduction........................................................................................................................................1

2. Installation..........................................................................................................................................1

3. Operating QA-ES...............................................................................................................................1

4. ESU Tests with QA-ES......................................................................................................................1

5. Control and Calibration....................................................................................................................1

6. Component Functions and Parts......................................................................................................1

Appendix A – Diagrams ........................................................................................................................A-1

Appendix B – Error Report Form........................................................................................................B-1

Appendix C – Improvement Suggestion Form....................................................................................C-1

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Manual Revision Record

This record page is for recording revisions to your QA-ES User & Service Manual that have been
published by METRON AS or its authorized representatives. We recommend that only the man ­agement or facility representative authorized to process changes and revisions to publications:

• make the pen changes or insert the revised pages;

• ensure that obsolete pages are withdrawn and either disposed of immediately, or marked as

superseded and placed in a superseded document file, and;

• enter the information below reflecting that the revisions have been entered.

Rev No Date Entered Reason Signature of Person Entering Change

1.30-1 4-30-01 General Update

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vi

1.1 QA-ES Descrip­tion

1. Introduction

This chapter describes the METRON QA-ES Electrosurgical Ana­lyzer, including its features and specifications.

The METRON QA-ES Electrosurgical Analyzer (QA-ES) is a preci­sion instrument designed to perform tests on high-frequency electro ­surgical units (ESU) in accordance with national and international
standards, and is designed to be used by trained service technicians.
Tests include:

• automatic power distribution measurement;

• crest factor measurement;

• RF leak measurement, and;

• return electrode monitor (REM) test

Testing is accomplished by measuring the ESU output against test
loads that are set and adjusted in the QA-ES. The QA-ES can auto­matically execute a power distribution test with a load resistance
ranging from 10 ohms to a maximum of 5200 ohms. The automatic
measuring of the QA-ES, comprising crest factor measurements
with a bandwidth of 10 MHz, ensures that the test result is reliable
and reproducible.

Test results, shown in the QA-ES’s LCD display, can be printed out
directly, or transferred to a PC via the PRO-Soft QA-ES test auto ­mation software. PRO-Soft lets you design test protocols, remotely
control the QA-ES, and store the test results.

1.2 QA-ES Specifications

Generator Output: RF LEAKAGE: From active electrode or neu-

tral plate with an open or closed load circuit.

Mode Of Operation: Manual or user-programmable. Can be re-

motely controlled with PC utilizing accessory
PRO-Soft QA-ES software and RS-232 com­munication cable connection.

Measurements: True RMS value of applied waveform.

RMS Bandwidth: 30 Hz to 10 MHz (+3 dB).

Low Frequency Filter: 100 Hz filter to avoid low frequency distur-

bance and/or interference.

Current: 20 mA to 2200 mA.

Current Accuracy: 20 - 2200 mA ± 2% of reading.

Load Resistance: 10 - 2500 ohms in steps of 25 ohms (@ dc).

1

2600 - 5200 ohms in steps of 100 ohms (@
dc).

Additional Fixed Load: 200 ohms, 500 watt maximum.

Crest Factor: The higher of the two peak-measurements is

Range: 1.4 - 16 (V peak voltage / V RMS).

Foot Switch Output: The output triggers the measurement after a

Peak To Peak Voltage: 0 to 10 kV (closed load only) ± 10%. Mea-

Oscilloscope Output: 5 V/A uncalibrated, 100 mA RF current mini-

Isolation: 10 kV isolation between measurement device

used for calculation.

programmed delay time, defined as the time
period from the activation of the foot switch to
the beginning of data processing. The delay
time is 200 ms - 4000 ms.

surement is taken between the active and
dispersive electrodes with closed load only.

mum input.

and enclosure.

1.3 General Information

Temperature Requirements:

+15°C to +35°C when operating
0°C to +50°C in storage

Display:

Type LCD graphic display

Alphanumeric format 8 lines, 40 characters

Graphics mode: 240 x 64 point matrix

Display control: 5 F-keys, enter, cancel and an encoder

Data Input/ Output (2): Parallel printer port (1); Bi-directional RS

-232C (1) for Computer control

Power Source: From 115 VAC to 230 VAC, 48/66 MHz.

Mechanical Specifications:

Housing Metal case

Height 13.2 cm / 4.48 in.

Width 34.2 cm / 11.61 in.

Length 39.5 cm / 13.41 in.

Weight 9.8 kg / 21.6 lbs.

Standard Accessories:

QA-ES Electrosurgical Analyzer (P.N. 14010)

Power Cord (P.N. 14300)

QA-ES User and Service Manual (P.N. 14025)

Additional Accessories:

E-Input Measuring Cable - Black (P.N. 11451)

2

E-Input Measuring Cable - Red (P.N. 11452)

Alligator Clamp - Black (P.N. 11461)

Alligator Clamp - Red (P.N. 11462)

Carrying case (P.N. 14100)

PRO-Soft QA-ES software (P.N. 12200)

PRO-Soft QA-ES DEMO (P.N. 14201)

PRO-Soft QA-ES User Manual (P.N. 14225)

Storage:

Store in the carrying case in dry surroundings within the tempera­ture range specified. There are no other storage requirements.

Periodic Inspection:

The unit should be calibrated every 12 months.

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4

2.1 Receipt, Inspec­tion and Return

2. Installation

This chapter explains unpacking, receipt inspection and claims, and
the general procedures for QA-ES setup.

1. Inspect the outer box for damage.

2. Carefully unpack all items from the box and check to see that
you have the following items:

 QA-ES Electrosurgical Analyzer (PN 14010)

 E-Input Measuring Cable -- Black (PN 11411-B)

 E-Input Measuring Cable -- Red (PN 11411-R)

 Alligator Clamp -- Black (PN 11412-B)

 Alligator Clamp -- Red (PN 11412-R)

 Power Cord (No PN)

 QA-ES User and Service Manual (PN 14025)

3. If you note physical damage, or if the unit fails to function ac­cording to specification, inform the supplier immediately.
When METRON AS or the company’s representative, is in ­formed, measures will be taken to either repair the unit or dis­patch a replacement. The customer will not have to wait for a
claim to be investigated by the supplier. The customer should
place a new purchase order to ensure delivery.

2.2 Setup

4. When returning an instrument to METRON AS, or the company
representative, fill out the address label, describe what is wrong
with the instrument, and provide the model and serial numbers.
If possible, use the original packaging material for return ship­ping. Otherwise, repack the unit using:

 a reinforced cardboard box, strong enough to carry the

weight of the unit.

 at least 5 cm of shock-absorbing material around the unit.
 nonabrasive dust-free material for the other parts.

Repack the unit in a manner to ensure that it cannot shift in the
box during shipment.

METRON’s product warranty is on page ii of this manual. The
warranty does not cover freight charges. C.O.D. will not be ac­cepted without authorization from METRON A.S or its repre­sentative.

1. Equipment connection is as shown in the typical setup below
(for Power Distribution Test).

1

CAUTION

The QA-ES uses a 3-wire
power cord and plug for
the user's safety. Use this
power cord in conjunction
with a properly grounded
electrical outlet to avoid
electrical shock.

2. If you are using an oscilloscope, attach the BNC cable to the
Scope Output connector, located on the front of the QA-ES.

3. If PRO-Soft QA-ES is being used, attach an RS-232 (null mo­dem/data transfer configured) cable to the 9-pin D-sub outlet
port located at the rear of the QA-ES. Do not attach the printer
cable to the QA-ES. See below. However, if you are not using
PRO-Soft QA-ES, and are sending directly to a printer for print­outs, attach the printer cable to the 25-pin outlet port.

2.3 PRO-Soft QA-ES

2

PRO-Soft QA-ES is a front-end test automation and presentation
tool for METRON's ESU Performance Analyzer. It allows you to
conduct the same tests, but by remote control via an IBM-compati­ble PC/XT with MS Windows (Version 3.1 or later). Additionally,
the program has features to enhance your QA-ES’s performance.

Each of the QA-ES tests can be run independently from PRO-Soft in
the “Manual” test mode. Results are shown on the PC screen during
testing, and the user is prompted to set the tested equipment accord ­ingly. At the conclusion of tests, the user may print a report, store
the test and results on disk, or both. Combinations of tests can be
created and stored as “Test Sequences.” The program maintains a li­brary of these sequences. In this way you can store and retrieve se-

NOTE

PRO-Soft QA-ES has its
own user manual, which
contains all the information
concerning the program. If
you order a demonstration
version of the program you
also receive the manual.

quences that are appropriate for each ESU being tested at your facil ­ity.

Sequences can then be used independently, or can be attached to a
checklist, written procedure, and equipment data in the form of a
test “Protocol.” The equipment data can be entered manually into
the protocol, or it may be retrieved by PRO-Soft from a database
program, or other equipment files. Protocols can be created easily
for each ESU in your inventory, and stored for use. Test protocols
with results can be printed, or stored on disk, and the results of test­ing can be sent back to the equipment database to close a work order
and update the service history.

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4

3.1 Control Switches and Connections

Front Panel

3. Operating QA-ES

This chapter explains the operating controls, switches and menus
of the QA-ES, and details how to use them in ESU testing.

1. Power Switch Turns the power on and off.

2. Encoder Sets values according to the specified range and

3. Enter Admits newly specified information.

4. Cancel Cancels a new value and returns to previously cho-

5. LCD Display Shows messages, test results and function menus.

6. Function Keys Fl - F5 are used to select the functions shown on the

7. RF-Detect Indicates when the ESU is activated.

8. Remote Indicates that REMOTE CONTR. (F4) has been

9. Scope Output
Connector

choose between different operations/ measurement
ranges.

sen value.

bottom line of the LCD display, i.e., for selecting the
function that is directly above the key.

pressed.

BNC-cable connector for attenuator signal in real
time. (When oscilloscope output is desired.)

1

Right Side Panel

Rear Panel

10. Terminal
RED and BLACK

11. Terminal
BLUE and BLUE

12. Terminal
GREEN and GREEN

Connection for the electrode outputs of the VAR.
LOAD ESU. Active electrode to the red terminal,
and neutral electrode to the black terminal.

Additional fixed load resistance of 200 ohms
FIXED LOAD 500 watt for serial connection dur­ing leakage test.

Foot switch output switch can be used to trigger
the ESU.

13. RS-232 Serial Port 9-pin D-sub

14. Printer Outlet Port 14-25 pin D-sub

15. Main Connector 3-pin SCHUCO-plug

16. Voltage Selector 115 VAC/230 VAC

17. Fuses T 200 mA @230 VAC / T 400 mA @ 11 5 VAC

2

3.2 QA-ES Menu and Function Keys

3.3 LCD Display Menu/ Messages (Overview)

The QA-ES uses a display, programmable function keys and a set­ting regulator to provide flexibility and control over the operations.
The upper part of the screen displays messages, status and results.
The menu bar is at the bottom of the display. The function keys are
numbered from Fl to F5. A function is selected by pressing the key
located directly under the Menu Item displayed in the menu bar.

3

3.4 LCD Display

Menu/ Messages (Detail)

1. Startup Screen. The following screen will be displayed for 2
seconds after the QA-ES has been switched on.

2. Main Menu

a. First Menu Bar (Page 1)

b. Second Menu Bar (Page 2)

3. SHOW CHOICES (F1). This function is activated when you
see an asterisk (*) in the status field under ‘Mode.’ Choose a
test function by pressing UP (F2) or DOWN (F3). (The en­coder can also be used for choosing a test function) Press

ENTER (F5) to save it under Mode in the STATUS field. Press
CANCEL (F4) to undo.

4. KNOB PARAM. (F2). With this function, you can choose be­tween ‘Mode,’ ‘Load’ and ‘Delay’ in the STATUS field. (*
marks the active item). If you choose ‘Load’, use the encoder to
set the load from 10 ohms to 5200 ohms in steps of:

 25 ohms from 50 ohms to 2500 ohms.
 100 ohms from 2500 ohms to 5200 ohms.

Save the selected load in ‘Mode’ under the STATUS field by
pressing ENTER (F5). Press CANCEL (F4) to undo. If you
choose ‘Delay’, use the setting regulator to set the delay from
200 ms to 4000 ms in steps of:

 50 ms from 200 ms to 1000 ms.

4

 100 ms from 1000 ms to 4000 ms.
Save the chosen delay in ‘Delay’ under the STATUS field by
pressing ENTER (F5). Press CANCEL (F4) to undo.

5. START (F3). When you press on START, the test procedure
will begin, and the text in the field ‘Oper.’ will change from
‘Ready’ to ‘Measuring’. If the unit is set to the position for a
REM test, this text will change from ‘Ready’ to ‘lncr'. res.’

Press STOP (F3) to stop the test procedure.

6. SETUP (F4). Here you can set the power distribution level for
start, stop and step in ohms.

Choose the ‘Start load’ by using KNOB PARAM (F4). (see
stars). Use the encoder to set the level. Save the level by press­ing ENTER (F5). Press CANCEL (F4) to undo. Go to ‘End
load’ and ‘Step Size’ and repeat the same procedure.

Pwr. distr. Start load is the first load to be used during the
measurements; it can be set from 10 ohms to 2100 ohms, with
steps of 25 ohms starting at 25 ohms onwards.

Pwr. distr. End load is the last load used in the measurements;
R can be set from 525 ohms to 5200 ohms, with steps of 25
ohms from 525 to 2500 ohms and step of 100 ohms from 2500
ohms to 5200 ohms

Pwr, distr. Step Size is the load set with steps of 25, 50, 100,
and 200 ohms

Press QUIT MENU (F5) to return to the main menu.

7. PRINT HEADER (F3). Writes a heading for a new test proto­col.

8. REMOTE CONTR. (F4). Enables you to control the QA-ES
through a PC. Required software: PRO-Soft QA-ES.

5

3.5 Printout

Press PRINT HEADER (F3) before printing out a page if you want
it to have a new heading. The QA-ES automatically prints out the
test results via the printer output after every measurement. See ex-

ample below.

3.6 Foot Switch Output

3.7 Main Switch On/Off

6

A Foot Switch Output is activated by use of relays (K11), and locat ­ed on the right side of the unit. This is used to trigger the foot switch
input on the ESU being tested.

The QA-ES has to be turned off for at least 5 seconds before turning
it on again to allow the reset circuit to unload.

4.1 Power Distribution

4. ESU Tests with QA-ES

This chapter explains the tests that can be conducted by the QA-ES
on an ESU, as well as the features available with the PRO-Soft QA­ES software accessory.

This test checks the power provided by the ESU over a range of load
resistances. The QA-ES allows you to specify a range of loads, over
which you test the ESU output power to see if it is within the speci­fied limits.

Per IEC 601-2-2 the power output cannot be reduced by more than
10W, or 5% of the minimum power output level. Per ANSI/AAMI
HF18-1993 the power output must be within 20% of the ESU manu­facturer’s specifications.

Load Resistance Range

Equipment

Monopolar 100 - 1000 ohms 50 - 2000 ohms

Bipolar 10 - 500 ohms 10 - 1000 ohms

Test setup for ESU power distribution test:

IEC ANSI/AAMI

4.2 HF Current Leakage

This test checks to see whether or not the active and dispersive leak ­age currents are within acceptable limits. There are four test setups
to accomplish this testing.

Per IEC 601-2-2 and ANSI/AAMI HF18-1993 the ESU shall be op­erated at the maximum output setting in each operating mode. The
limits for the acceptable leakage currents depend upon the test con­figuration.

Test Configuration Limits of Acceptable Leakage Current

Measured on electrodes The leakage current should not exceed 150 mA

1

Test Configuration Limits of Acceptable Leakage Current

Bipolar The leakage current should not exceed 1% of the

Measured at equipment
terminals

maximum bipolar rated power output.

The leakage current should not exceed 100 mA.

1. Grounded HF Equipment: Measurements of the HF cur­rent leakage. The ESU is grounded. The test load is 200 ohms

and the ESU must be operating at maximum power. The current
leakage measured directly at the instrument's terminals must not
exceed 100 mA.

Test setup in compliance with IEC 601.2.2, sec. 19.101a, test 1,
fig. 102 and sec. 19.102. (Adopted by ANSI/AAMI HF18-

1993)

Test setup in compliance with IEC 601.2.2, sec. 19.101a, test 2,
fig. 103 and sec. 19.102. (Adopted by ANSI/AAMI HF18-1993)

2. HF Isolated Equipment: Measurements of the HF current
leakage from the active and neutral electrodes. The test load

is 200 ohm and the ESU must be operating at maximum power.
The current leakage measured directly at the instrument's termi ­nals must not exceed 100 mA.

Active electrode test setup in compliance with IEC 601.2.2, sec.

19.101b, fig, 104 and sec. 19.102. (Adopted by ANSI/AAMI
HF18-1993)

2

4.3 REM Alarm

Neutral electrode test setup in compliance with IEC 601.2.2,
sec. 19.101b, fig, 104 and sec. 19.102. (Adopted by
ANSI/AAMI HF18-1993)

This test ensures that the ESU will sound an alarm if the resistance
between the two neutral electrodes exceeds your specified limit. The
program directs the OA-ES to gradually increase the resistance. At a
certain value, the ESU should sound an alarm. Test setup for ESU
REM alarm test.

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4

5.1 Required Test Equipment

5. Control and Calibration

This chapter explains the QA-ES maintenance procedures, including
testing and calibration.

 ESU, 200W in 75 ohms with 500 kHz

 Signal generator, 3 MHz, harmonics better than -40 dBc with

500 kHz, 0 dBm

 Digital multimeter

 Digital multimeter, HP 34401 or equivalent

 RMS / Peak Voltmeter, RHODE & SCHWARY URE 3 or

equivalent

 Oscilloscope, 10 MHz

 Electrosurgical probe for QA-ES

 Computer (PC) with RS-232C interface

 Printer with parallel interface

 Short circuit SMB terminal, female

5.2 Preparation

The QA-ES should be
switched on for a minimum
of 15 minutes before the
test starts to ensure stable
working temperatures.

5.3 Function Testing

Measurements should
be performed only on
main supply, and not
both 230V and 115V.

 Test cables

WARNING!

HIGH VOLTAGES ARE CAPABLE

OF CAUSING DEATH!

USE EXTREME CAUTION WHEN PERFORMING TESTS AND CALI­BRATION. USE ONLY INSULATED TOOLS WHEN THE UNIT IS
PLUGGED IN, AND THE CASE HOUSING IS OFF.

Before performing testing and calibration, you must dismantle the
housing. This is accomplished by removing the side plates fastened

with Velcro straps. Then, remove the bottom plate by loosening the
four screws. Afterwards, move the bottom plate of the isolation box
by loosening the 16 screws holding it in place. Adjust the voltage
switch at the rear of the QA-ES so that is corresponds to the main
voltage (115 or 230V).

1. Power Supply. Connect the multimeter in series on one of the
mains supply leads to measure the current consumption. Turn

1

5.4 Calibration

on the QA-ES. Don't activate any functions. Measure the cur­rent. Required value:

230±10%: 80mA -10/+20mA
115±10%: 160mA -20/+40mA

2. User Interface and Display. Check that the display and the
user interface are working normally.

3. Cooling Fan. Check that the fan increases speed when you
press on Start (F3) in the main menu and that the speed de­creases about 10 seconds after you press STOP (F3).

4. Serial and Parallel Interface. QA-ES can be connected to a
printer and a PC. Check that booth the serial and parallel inter ­faces work.

5. Foot Switch. Connect a multimeter to the foot switch output
on the QA-ES (green). Check that the relay for the foot switch
is connected when you press START (F3).

6. Fixed Load. Measure the value of the fixed load with a multi­meter (blue). Required value: 200 ohms ±10 ohms.

7. Housing Isolation. Use a multimeter to check the isolation be­tween the housing and the measuring inputs. It is important to
check all of the terminals on the housing: ‘Var. Load', 'Fixed
Load' and 'Foot Switch’.

1. Offset Voltage. Short-circuit the RF input on the sampling unit
(J4). All the measurements and reference values in this section
refer to the sampling unit. Measure the voltage at each of the
following points and adjust them to the following values with
the potentiometers specified between brackets. The voltage
should be set as close to 0V as possible.

TP1 - GND

(no adjust)

OmV ∀100 ΦVO ΦV ∀50 ΦVO ΦV ∀100 ΦVO ΦV ∀500 ΦVOmV ∀5 mV

TP3 - TP2

(R3)

TP4 - GND

(R2)

TP5 - GND

(R1)

TP6 - GND

(R4)

2. Load Resistance. Set the QA-ES in calibration mode by hold-

It is important to cali­brate the resistance of
the measuring leads on
the multimeter itself be-
fore starting the test.

ing the function key F1 while switching the instrument ON.
Continue to press on the key until the main menu appears. Con­nect a multimeter (hp 34401A) to the 'Var. Load' input. The re­sistances are calibrated by turning the small wheel until the dis­play shows a value as close as possible to the value read. To
calibrate the next resistance, press on UP (F1) or DOWN (F2).

3. Measuring Resistance. Set the QA-ES in calibration mode.
Before mounting it, the measuring resistance R1 on the Load
Board should be measured with hp 34401A. The measured val­ue should be noted near R1 on the Load Board. Use this value
for R1 in the following equation and for ‘Meas. Reas.’ in the
calibration menu by using the wheel. Press QUIT (F5) to save
calibrated values.

2

Meas s

R

R

Re

*

=

+

1 100

1 100

4. Measuring Device

Clin

kdB

=

20

10

gain gain

Q Q

Clin

= •

Measuring The Effect. Set the QA-ES in test mode by holding
F2 while switching the power on. Connect the signal generator
to the RF input on the sampling unit. The signal applied is a
pure sine of 500 kHz. URE 3 is connected in parallel with the
sampling unit to measure the applied signal. Press START (F3)
and read the measured effect in dB. Vary the level of the ap ­plied signal from -16 dBm to +10 dBm and find the average
value for the difference between the value read on the QA-ES
and the applied value measured with URE 3. Use the term be­low to calculate a linear percentage value from the difference
value in dB.

KdB: Average value for the difference between the value read
on QA-ES and the applied value measured with URE 3.

Clin: Linear value of kdB.

The following term will lead to a new value for Q_gain.

Turn the wheel and press ENTER to specify a new value for
Q_gain. Repeat the test until the average value between the
QA-ES and URE 3 is smaller than 0.1 dB. This corresponds to
an error of 2.3%.

Peak Detector. Once the measuring device used in measuring
the effect has been calibrated, you can calibrate the peak detec­tor. Use the same test setup as for calibrating the effect. Mea­sure with a signal level of 200 mVp and 1 VP applied from the
generator. The applied amplitude is measured with URE 3. The
difference between the value read on the QA-ES and URE 3
should not exceed 10% otherwise the P_offset and N_offset in
the calibration menu must be changed until this requirement is
met. If the positive peak value read is too small P_offset should
be reduced. N_offset should be reduced if the negative peak
value is too low. Press QUIT (F5) to save calibrated values.

5. Measuring Accuracy of the total system. Connect the coaxial
cable from the Load Board to the RF-input (J4) on the Sampling
Unit. Put the ground plate of the isolating box back into place.
Connect a high voltage probe in the port for variable load resis­tance on the QA-ES. The probe's coaxial cable should be con­nected to URE 3. The banana adapters of the probe are connect­ed with the high voltage generator. The following mathematical
formula presents the applied effect in dBm as a curve of the ef­fect on URE 3.

3

dBcoeff

R R

R

= •

+











20

1 2

2

log

R1: Resistance in the high voltage probe. Specified on the

m URE

P P

dBcoeff

− +

#

m qa es

P P

dBm dBm dB

[

[ ] [ ] .

− <

−

017

qa es

I

mA

−

>

50[ ]

m qa es

m

P P

P

−
<

−

4%

probe. Nominal value 47 kohms.

R2: Measuring resistance in the high voltage probe. Speci-

fied on the probe. Nominal value 37.5 ohms.

The measuring accuracy of the QA-ES should be checked for
the following resistance values and the corresponding signals
applied.

R Applied signal measured on URE3

[ohms] [W] [dBm]

75
300
1500

Calculate the average value for the difference between QA-ES
and URE 3 and correct the value for Q_gain in the calibration
menu by following the instructions given before under item 4 in
this section.

Requirement:

NOTE

Remember to set the ref­erence impedance in
URE 3 to the same value
as the load resistance
used for measuring.

200 ∀ 50W
150 ∀ 50 W
100 ∀ 50 W

52.0 - 54.0

50.0 - 53.0

47.0 - 52.0

Remember that the
scope output is not cali­brated!

In linear form this corresponds to:

6. Scope Output. Connect the high voltage generator to 'Var.
Load' and the oscilloscope to 'Scope Output'. Set the QA-ES to
continuous mode and start measuring by pressing on Start. Ac­tivate the high voltage generator and measure the peak-to-peak
voltage on the oscilloscope. Check that this value equals the
current flow read on the QA-ES.

Nominal value: 4.5 ∀ 0.4 V/A

4

6.1 Processor Board

6. Component Functions and Parts

This chapter provides a detailed description of the functions of the
main components of the QA-ES, as well as a parts list for cross-ref ­erence. Reference is made to the component location and schematic
diagrams to assist servicing personnel. These diagrams are foldouts,
and are located in Appendix B.

(Refer to QA-ES Processor Board Component Location Diagram
and Schematic Diagrams 1 and 2) The Processor Board is installed

on the inside of the front plate. It comprises the:

 power supply;
 microprocessor system;
 display;
 function keys;
 interface towards Sampling Unit, and;
 RS 232 port and printer port

The Processor Board activates and controls the sampling procedure
in the QA-ES. The data is routed back from the Sampling Unit to
the microprocessor, where the results will be calculated before being
displayed.

1. Power Supply

(See QA-ES Processor Board Schematic Diagram 2). The Pro­cessor Board receives 12 VAC from the Transformer located at
the rear of the QA-ES via J4. The voltage is then converted with
diode D9 and filtered through C1. Voltage regulator U8 sup­plies the circuits with +5 V. The voltage is adjusted with resis­tors Rl0 and R11. Schottky diode D4 protects the 5V power
supply to the printer interface to avoid any power flow between
the printer and the Processor Board while the QA-ES is
switched off. Capacitive switch regulator U9 generates -12 V
from +12 V. V-comparator U10 monitors the +5V voltage and
sends a reset signal to the microprocessor when the voltage
drops under 4.75 V.

Transistor Q4 controls the voltage to the compressor at the rear
of the QA-ES. The compressor is connected to J5. The micro­processor issues a digital signal at PWMA, depending on the
ventilation speed desired. Transistor Q2 controls the basic pow­er in Q4. When Q4 is turned off (low ventilation speed), the
compressor receives power via transistors R8 and R17, leading
to a voltage drop.

2. Microprocessor System

1

(See QA-ES Processor Board Schematic Diagram 1). The mi­croprocessor system is in PCMCIA card format (U1). It com­prises a MC68HC16 microprocessor with I/O, 256K Flash ROM
and 64K RAM. It can be reprogrammed or replaced when up­grading the software. The processor's I/O includes an asynchro­nous serial port (ACIA), synchronize serial port, parallel I/O,
A/D converter and PWM output. In addition, 8 bit of the data
bus are accessible, as well as chip-select lines for direct access
to the external I/O.

The processor is timed with a 16.67 MHz timer frequency, con ­trolled by an internal crystal in the component. To check the
timer frequency, a 1024 Hz square signal is applied to one of
the PWM outputs. The signal can be measured at pin TP 1.

Ul3 is an EEPROM connected to the processor component via a
parallel I/O. Ul3 saves the calibration parameters for the Sam­pling Unit. The parameters can be stored independently of the
processor component so that the QA-ES does not have to be re­calibrated when upgrading the software.

3. Function Keys

(See QA-ES Processor Board Schematic Diagram 1). The QA­ES is operated by touch keys and a universal digital encoder.
The encoder, or 'knob', will be given different functions de­pending upon the parameters that are to be changed. The en­coder is connected to two touch keys with unchangeable func­tions, 'ENTER' and 'CANCEL'. The QA-ES is operated from 5
'soft-keys' linked to menus shown on the display.

Latch U2 buffers data from touch keys SW1-SW7. If you press
one of the keys, power will flow into the base at Q1 via RP1,
thus controlling an interrupter input on the processor unit. When
the interrupter input is activated the processor reads latch U2
latch to find out which key was pressed. The same interrupter
input is activated via diodes D1 and D2 when operating the en­coder. The encoder is read via I/O ports on the processor com ­ponent.

4. Display

(See QA-ES Processor Board Schematic Diagram 1). The QA­ES is equipped with a 240 x 64 dot graphic display with a built­in character generator. When in character mode, the display
shows 40 x 8 characters. The display is controlled by the pro­cessor unit via the data bus. The display's contrasting voltage is
regulated with voltage regulator U12. Voltage (and contrast) are
controlled with the potentiometer R15. This is the only point of
adjustment at the processor board.

The display offers EL background light to make it easier for the
user to read. U11 is an oscillator generating an operating volt­age of about 90 VAC for the EL component.

5. Interface Towards Sampling Unit

2

(See QA-ES Processor Board Schematic Diagram 1). All data
transferred between the Sampling Unit and the Processor Unit is
in serial format to simplify the optical interface on the sampling
board. Communication is controlled by the synchronous serial
interface on the processor unit. The signals are transmitted via
pin board base J1.

6. Serial Port

(See QA-ES Processor Board Schematic Diagram 2). The serial
port is adapted to a 9-pin RS-232C format. The port is set to
9600 baud, 8 data bits, 1 stop bit and no parity. RS-232 driver
U6 drives the data signals. The handshake is software-oriented.
The command responses are returned via the D-sub terminal.

7. Printer Output

(See QA-ES Processor Board Schematic Diagram 2). The Pro­cessor Board’s printer output has a standard 25-pin D-sub con­tact for Centronix interface. The output is built around 3 HC­MOS circuits; U3, U4 and U5. The circuits are connected to the
data bus and I/O ports of the processor unit. U3 is a latch for the
8 parallel data lines. U4 is the driver for the outgoing com­mands, while U5 acts as a buffer for incoming commands. RP3
comprises pull-up resistances for the input lines. All signals to
the printer output are filtered to reduce high frequency radia­tion.

6.2 Sampling Unit

The QA-ES Sampling Unit is placed inside the internal protection
box of the instrument. The card is fixed vertically on the right side
of the protection box. The unit comprises:

 power supply;
 measuring device, and;
 interfaces towards the Processor Board and the Load Board.

The Sampling Unit converts the applied RF signal to a low frequen­cy signal proportional to the mean square of the RF signal. The peak
value of the applied signal is also measured. The measuring values
are sampled with a 12 bits A/D converter and the data is transmitted
to the Processor Board for calculation and presentation on the dis­play.

1. Power Supply

(See QA-ES Processor Board Schematic Diagram 1). The Sam­pling Unit receives -10 VDC and +10 VDC from the Load
Board via J1). Voltage regulators U17 and U19 provide, respec­tively, +6V and -6V for the RMS DC converter. Voltage regula­tors U18 and U20 provide the peak detector with +9V and -9V.
Voltage regulator U16 supplies the opto-coupler in the interface
towards the Processor Board with + 5V.

2. Measuring Device

3

The measuring device consists of two blocks:

• a RMS DC converter for current measuring, and;

• a peak detector for measuring the peak voltage in the sig-

nal.

The peak detector is divided into two actions for measuring the
positive and negative peak values.

3. Input Filtration

At the measuring system input, the incoming signal is filtered
down to a lower level through a filter based on L1, L2, C5, C6
and C7. The 3dB frequency is set to 10 MHz. The filter can be
found on diagram 1 of 3.

4. RMS DC Converter

(See QA-ES Processor Board Schematic Diagram 1). The RMS
DC converter is based upon an analog multiplicator from analog
devices AD834, U15. U15 and U25 form a circuit that calcu­lates the mean square of the applied signal. A filter, consisting
of C8, C9. C50, C51, R35 and R36, determines the constant
time factor for the integration, which will correspond to the am ­plitude of the outgoing signal at U25. Further calculations of
RMS values and current are carried out in the software on the
Processor Board.

Two amplification steps following the mean square circuit en­sure optimum dynamics in the measuring system. Both steps
U13 and U14 provide 20 dB amplification. By measuring the
signal before U13, and after U13 and U14, you can determine
which signal level makes the best use of the A/D converter dy­namics.

5. Peak Detector

(See QA-ES Processor Board Schematic Diagram 3). The peak
detector is divided into two sections: one for detecting the posi­tive peak voltage, and the other for detecting the negative peak
voltage. The detector is based on a transistor diode connection.
The positive peak voltage is detected by transistors Q1 and Q4,
to which are attached various components. The same goes for
the negative peak voltage with Q2 and Q5. The positive peak
voltage is built up over the C27 capacitor, whereas the negative
peak voltage is built up over the C28 capacitor. U23 drains
small amounts of current from C27, and provides the AID con­verter with correct polarization and low impedance for the posi­tive peak detector. U22 does the same for the negative peak de­tector. The peak detector ran be reset by short-circuiting C27
and C28 via octol analog switch U24 (See QA-ES Processor
Board Schematic Diagram 2).

6. A/D Converter

4

The measuring device uses a 12-bit A/D converter from linear,
Ul. This circuit measures both RMS values, and positive and
negative peak voltage. Each of the signals is multiplexed into
the A/D converter via the U24 switch.

The sampling speed depends on the Processor Board's reading
speed. Schottky diode D7 protects the A/D converter from in­coming negative signals.

7. Interface Towards Load Board and Processor Board

The measuring device and load resistances in the QA-ES are
isolated from the processor unit and the housing by a galvanic
shield. This protects the user if a fault in the QA-ES produces
ground currents during the measurements. This interface is
based upon opto-couplers and various mains transformers for
the user interface and the measuring device in the QA-ES.

Data is transferred digitally between the Sampling Unit and the
Processor Board in serial form via J3 to simplify the optical in­terface. Opto-couplers U5, U6, U7 and U8 are used in transmit­ting signals from the processor system to the Sampling Unit.
The Opto-coupler U9 transfers the measurement from the Sam­pling Unit back to the processor system on the Processor Board.

The relays used in choosing load values on the Load Board are
also controlled via terminal J3 on the Sampling Unit. The com­mands are then transmitted from the Sampling Unit to the Load
Board via terminal J2.

8. High Voltage Protection

6.3 Load Board

Diodes D8-D15 are a protection device against high voltage sig­nals entering the Sampling Unit.

(Refer to QA-ES Load Board Component and Schematic Diagrams).

The Load Board is located inside the internal protection box in the
QA-ES. The card is fixed vertically inside the box. The unit in­cludes a power supply, load resistances with corresponding control
relays, and interface towards the processor system Sampling Unit, a
measurement resistor with attenuators and measuring Transformer
for the scope output.

The Load Board forms the load for the ESU being tested. The load
can vary from 10 ohms to 5200 ohms, or be fixed to 200 ohms. A
high voltage relay inside the Load Board (K1) connects the load to
or from the ESU.

1. Power Supply

The Load Board is supplied with 2 x 9 VAC from the Trafo in
the front part of the protection box via J14. The voltage is con­verted with diode D9, and filtered through Cl and C2. U1 is a
voltage regulator, providing the relay drivers +5 V. U1 also
supplies Sampling Unit opto-couplers U10, U11 and U12 with 5

5

V. Cl and C2 provide relay drivers U2 and U3 with +10 VDC
and -10 VDC. These voltages are used for controlling the relays
on the Load Board.

2. Load Resistances

There are two load resistances on the Load Board, seen from
the ESU being tested. The first has a fixed load of 200 ohms,
and is used to measure the current leakage. The other is a vari ­able load resistance, which varies in steps of 25 ohms, from 10
ohms to 5200 ohms.

3. Fixed Load Resistance

The fixed load resistance is based on the two 100 ohms non-in­ductive resistances (R17 and R18) connected in series. The total
load can be 350 W continuously.

4. Variable Load Resistance

The variable load resistance is also based on a non-inductive re­sistance (R3 - R16). In addition, relays (K2 - K10) have been
used to offer the choice between different combinations of re­sistances. You can therefore obtain any value between 10 and
5200 ohms.

5. Measuring Resistance and Attenuator

The measuring signal transmitted to the Sampling Unit is
drained over a 2.0 ohms resistance (R1) in series with the vari ­able load resistance (R3 - R16). Before the signal is transmitted
to the measuring device, it passes through a variable attenuator,
based on a 10 dB attenuator (R20 - R22) and a 20 dB attenuator
(R26 - R30). By connecting these attenuators in series, you can
obtain an attenuation of 30 dB.

6

6. Interface Towards Sampling Unit

When the signals pass through an optical barrier between the
processor system and the rest of the electronics, the Sampling
Unit's F1 terminal controls the relays, choosing the load and at­tenuator values on the Load Board.

7. Scope Output

The scope output is based on a measuring Transformer L1,
mounted on the Load Board. The measuring Transformer is ter ­minated with a 50 ohms resistance R31.

8. Foot Switch

The output foot switch is based on a relay (K11), and is used in
triggering the ESU being tested.

6.4 Component Parts

COMPONENT PART TYPE/VALUE QTY. DIAGRAM REFERENCE

HOUSING: 1

Transformer ring core 1x12V 1A ULVECO AA81002 1
Transformer E-core 10kV 2x9V ELTRAFO 1
D-Sub 25p female ELFA 43-674-54 1
D-Sub 9p male ELFA43-673-97 1
Flat cable contact 10-polt ELFA 43-646-00 1
Flat cable contact 16-polt ELFA 43-646-26 2
Flat cable contact 26-polt ELFA 43-646-42 1
BNC Straight bulkhead jack R141306000 1
SMB coax. conn. Straight plug Rl14082000 1
Security contact Red Flat 4.8mm JHSupp 404-171 1
Security contact Black Flat 4.8mm JHSupp 404-137 1
Security contact White Flat 4.8mm 2
Security contact Green Flat 4.8mm 2
Ventilator 12 VDC 92mm Panasonic FBA09A12H1A 1
Protection grate for ventilator Sunon FG-9 1
Turning knob 1
Voltage regulator C&K V802-12-SS-05-Q 1
Apparatus input with netfilter Corcom lED4 1
Safety fuse 5x20 mm Schurter 0031.1081 FEF 2
Safety fuse 5x20 mm Schurter 0031.1363 FIO 2
Net switch C&K DM22-J1-2-S2-05-N-Q 1
Cable shoe 13
ABIKO Ring cable shoe 1
Screw dimension M3
Flat cable 1
Flat cable to printer 25-polt 44 cm 1
Flat cable to serial port 9-polt 44 cm 1
Flat to measuring board 16-polt 33 cm 1
Coax. cable IRG174 45 cm Farn 125326 1
Countersunk flat headed screw DIN 965 M4x12 14
Countersunk flat headed screw DIN 965 M3x6 8
Screw slot SH DIN 84A M3x10 4
Screw slot SH DIN 84A M3x8 12
Screw slot SH DIN 84A M4x10 4
Screw slot SH DIN 84A M4x35 1
Screw recessed head poz DIN 7985 M2-5x10 8
Screw recessed head poz DIN 7985 M3x6 31
Screw recessed head poz DIN 7985 M3x8 4

7

COMPONENT PART TYPE/VALUE QTY. DIAGRAM REFERENCE

Screw recessed head poz DIN 7985 M3x10 4
Screw recessed head poz DIN 7985 M4x30 4
Nut M3 6
Nut M4 4
Safety nut M4 1
Spring washer M4 4
Washer M4 12mmø DIN 9021 1
Spacer for fixing the front plate 5
Contact plate 1
RF protection box 1
Front plate w/5 screws for circuit board 1
Rear plate 1
Front foilv 1

PROCESSOR BOARD:

Printed circuit board Elprint AR075 1
Micro Module 16MM16 1 U1
Latch 74HC574N 3 U2, U3, U5
Port 74HC05N 1 U4
RS 232-driver MC145406P 1 U6
Voltage Reg. LM337LZ 1 U12
Voltage Reg. LM317T 1 U8
V-converter ICL7662CPA 1 U9
V-comparator Mc34064P-5 1 U10
V-converter NeI-D32-49 1 U11
EEPROM X24C02P 1 U13
Transistor BC547B 2 Q1Q2
Transistor BD140 1 Q4
Diode 1N4148 4 D1, D2, D5, D10
Diode 1N4002 1 D3
Schottky diode 1N5819 1 D4
Bridge 4A 200v 1 D9
LCD-display Optrex DMF 5005N-EW 1
Encoder Bourns ECWIJ-B24-BC0024 1 SW8
LED Gul 3mm Sie LY3360-K 1 D7
LED Rød 3mm Sie LR 3360-FJ 1 D8
Resistor 22R 1% 0.5W 2 R8, R17
Resistor 240R 1% 0.5W 1 Rll
Resistor 330R 1% 0.5W 2 R4, R5
Resistor 750R 1% 0.5W 1 R104
Resistor 1K0 1% 0.5W 1 R9
Resistor 2K2 1% 0.5W 1 R14
Resistor 6K8 1% 0.5W 1 R16
Resistor 10K 1% 0.5W 5 R2, R7, R12, R18, R19
Resistor 22K 1% 0.5W 2 R3R13
Resistor 100K 1% 0.5W 1 R1
Resistor pack 5x2K2 SIL 1 RP4
Resistor pack 8x4K7 SIL 1 RP2
Resistor pack 8x10K SIL 1 RP3
Resistor pack 8x47K SIL 1 RP1
Varistor 20V 1 R6
Trimpot 10K 1-tørn Cermet 1 R15
Multilayercond. 100nF 50V 6 C8
El.lytt cond. 10 F 25V 4 C2, C3, C5, C6
El.lytt cond. 220 F 25V 1 C7
El.lytt cond. 2200 F 25V 1 C1
Tantal cond. 1 F 35V 1 C4
EMI-Filter Murata

DSS306-91YSS102M1
PCM-ClA slot 1 (U1)
Display-connection 4 pin Berg 71991-410 1 (DISP1)

19 FI1 - FI19

8

COMPONENT PART TYPE/VALUE QTY. DIAGRAM REFERENCE

Display-connection 20 pin Berg 71991-410 1 (DISP1)
Board pin base 16 pin 1 J1
Board pin base 10 pin 1 J2
Board pin base 26 pin 1 J3
Pin base for display (DISP1)
Pin base 36 pol 5 TP1-TP7
Screw clip basic part 2 pol 2 J4J5
Screw clip 2 pol 2 (J4J5)
Touch keys 7 SW1 - SW7 *1
Cover for touch keys 7 (SW1-SW7)
Safety holder Schurter 0031-8201 OGN 1 F1
Safety fuse 600mA Slow 1 (F1)
Heat sink Elfa 75-612-44 1 (Q4)
Screws M2 x 10 2
Nuts M2 2
Nylon screws M3 x 12 4
Nylon nuts M3 12

SAMPLING UNIT:

Printed circuit board Elprint AR-069 1
Op.amp High Current AD844AN 1 U21
Op.amp High Speed AD711JN 1 U25
Op.amp Railto Rail AD820AN 2 U13, U14
Op.amp Dual LMC662CN 2 U22, U23
Analog Multiplier AD834JN 1 U15
AiD-converter 12-Bit 250 kHz LTC 1272- 5CCN 1 U1
Octal Analog Switch Array DG485DJ 1 U24
Shift Register 74HC589AN 2 U2, U3
Quad Nand port 74HC00AN 1 U4
Opto Coupler CNW2611 8 U5- U12
Voltage Regulator LM317T 1 U16
Voltage Regulator LM317LZ 1 U17
Voltage Regulator LM2941T 1 U18
Voltage Regulator LM337LZ 1 U19
Voltage Regulator LM2991T 1 U20
Transistor 547BNPN 2 Q1, Q2
Transistor 560BPNP 2 Q4, Q5
Diode LL4148 12 D1 - D6, D8- D13
Zener diode 1N5335. 39V 2 D14, D15
Schottky diode PRLL5819 1 D7
Crystal 25 MHz 1 Y1
Resistor 4R7 1% 1/8W 2 R56, R57
Resistor 10R 1% 1/8W 4 R27, R34, R37, R58
Resistor 24R9 1% 1/8W 1 R24
Resistor 51R 1% 1/8W 2 R61, R72
Resistor 75R 1% 1/8W 2 R25, R26
Resistor 100R 0.25% 1/8W 4 R22, R23, R35, R36
Resistor 160R 1% 1/8W 1 R28
Resistor 249R 1% 1/8W 4 R42, R44, R46, R47
Resistor 390R 1% 1/8W 1 R90
Resistor 470R 1% 1/8W 18 R6 - R21, R64, R67
Resistor 750R 1% 1/8W 3 R5, R41, R55
Resistor 953R 1% 1/8W 2 R43, R45
Resistor 1K0 1% 1/8W 3 R54, R82, R83
Resistor 1K2 1% 1/8W 1 R75
Resistor 1K5 1% 1/8W 4 R48, R65, R73, R81
Resistor 1K8 1% 1/8W 4 R40, R52, R60, R71
Resistor 2K0 0.25% 1/8W 3 R38, R50, R77
Resistor 2K2 1% 1/8W 1 R89
Resistor 2K7 1% 1/8W 2 R63, R68
Resistor 3K3 1% 1/8W 1 R53

9

COMPONENT PART TYPE/VALUE QTY. DIAGRAM REFERENCE

Resistor 3K6 1% 1/8W 1 R76
Resistor 4K7 1% 1/8W 11 R49, R59, R62, R69, R70,

Resistor 10K 0.25% 1/8W 2 R30, R31
Resistor 18K 0.25% 1/8W 2 R39, R51
Resistor 22K 0.25% 1/8W 1 R29
Resistor 47K 0.25% 1/8W 2 R32, R85
Resistor 10M 1% 1/8W 2 R66, R74
Trimpot Multi. 10K 4 R1, R2, R3, R4
Chip ind. 10% 2 L1, L2
(Chip ind. 2% 2)
Cond Multil. lpF0 5% 63V 1 C22
Cond Multi. 47pF 5% 63V 2 C2, C3
Cond Multi. 100pF 5% 63V 3 C11, C46, C47
Cond Multi. 150pF 5% 63V 2 C5, C7
Cond Multi. 470pF 5% 63V 1 C6
Cond Multi. lnF0 5% 63V 2 C27, C28
Cond Multi. 10nF 10% 63V 20 C10, C11, C23-C26, C29,

Cond Multi. 100nF 10% 63V 8 C4, C8, C9, C12, C2, C35,

Tantal cond. 1,0 F 20% 15V 20 C30, C48, C49, C52, C53,

Tantal cond. 10 F 20% 15V 5 C14, C16, C17, C18- C20
El.lytt cond. 10 F 20% 50V 4 C13, C15, C54, C55
Condenser NC C40, C43, C50, C51
Printer board contact 6-polt hunn 2 J1, J2
SMB coax conn. Right angle PCB recept. 1 J4
Stifflist kort 16 pin 1 J3
18/36 pin base 36 pol (testpoints split) TP1 -TP18
Screw M3x6 Elzink Pan 3
Nut M3 Elzink 3

LOAD BOARD:

R78 - R80, R86 - R88

C31 - C34, C36, C37 ­C39,C41, C42, C44, C45,
C60

C71, C72

C56 - C59 C61 - C70

Printed circuit board Elprint AR-061B1 1
Voltage Regulator LM317T 1 U1
Resistance bridge 4A 200V GBU4D 1 D2
Resistor 3K0 5% 50W 1 R16
Resistor 9R1 5% 100W 1 R3
Resistor 15R 5% 100W 1 R4
Resistor 620R 5% 100W 1 R15
Resistor 47R 5% 175W 1 R5
Resistor 100R 5% 175W 4 R8, R9, R17, R18
Resistor 200R 5% 175W 4 R6, R7, R10, R11
Resistor 330R 5% 175W 1 R12
Resistor 470R 5% 175W 1 R13
Resistor 1K0 5% 175W 1 R14
Resistor 2R0 1% 10W 1 R1
Resistor 10R 0.1% 0,6W 1 R30
Resistor 26R1 0.1% 0,6W 2 R20, R22
Resistor 34R8 0.1% 0,6W 1 R21
Resistor 82R 0.1% 0,6W 4 R26 - R29
Resistor 100R 0.1% 0,6W 2 R19, R25
Resistor 51R 1% 0,5W 1 R31
Resistor 240R 1% 0,5W 1 R23
Resistor 750R 1% 0,5W 1 R24
El.lytt cond. 10 F 2,5V 25mm rad. 1 C3
El.lytt cond. 2200 F 25V rad. 2 C1, C2
Circuit driver UCN5842A 2 U2, U3
High voltage relay Günther 33911290246 1 K1

10

COMPONENT PART TYPE/VALUE QTY. DIAGRAM REFERENCE

Relay 24V Takamisawa 10 K2 - Kll
Relay 24V 2-pol Takamisawa RY-24W-OH-K 2 K12, K13
(Relay 24V 2-pol Takamisawa RY-24W-K 2)
Toroid 3F3 125x75x5 mm ELFA

58-755-21
SMB coax conn. Straight plug crimp 1
SMB coax conn. Straight PCB recept. 1 J13
Printer board contact 6-polt hannPhoe 1 J1, J2
Printer board clip 3-polt Phoe 1 J14
Safety holder Farn 134477 2 F1, F2
Safety fuse 600mAT Farn 150202 2 (F1), (F2)
High voltage cable 35 cm 10-/m @ 100 m 2
Coax. cable RG174 40 cm Farn 125326 1
Coax terminator Double leg right ang. 1
Plastic Spacer ENISO 3x25 38
Plastic Spacer ENISO 3x20 6
Nylon Screw M4x07x12 mm 36
Screw pin DIN 553 M4x22 mm 14
Dekk-kappe todelt 30
Bracket for power resistor 30

1 L1

11

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12

Appendix A - GLOSSARY OF TERMS USED

Bipolar Electrosurgery Electrosurgery where current flows between two bipolar electrodes that are posi -

tioned around tissue to create a surgical effect. Current passes from one elec­trode, through the desired tissue, to the other electrode, thus completing the cir­cuit without entering any other part of the patient's body. Neutral plates are not
employed in the bipolar technique. Both electrodes are generally of the same
size.

Bipolar Output An isolated electrosurgical output where current flows between two bipolar elec-

trodes that are positioned around tissue to create a surgical effect in that tissue
(usually desiccation).

Blend A waveform that combines features of cut and coag waveforms; current that cuts

with varying degrees of hemostasis.

Crest Factor The amount of heat generated is relative to the mean power value. The crest

factor depends on the load resistance and is defined as the ratio of peak value to
effective value. A sine wave has a crest factor of 1.4 and provides the cleanest
form of cutting.

Diathermy, also Surgical
Diathermy; Electrosurgery

ESU Electrosurgical Unit. This is a term which is inclusive of both the electrosurgical

Cut (Cut Mode, Pure Cut) A low voltage, continuous waveform optimized for electrosurgical cutting.

Isolated Output The output of an electrosurgical generator that is not referenced to earth ground.

Monopolar Electrosurgery A type of electrosurgery involving a small (active) electrode and a large neutral

Monopolar Output A grounded or isolated output on an electrosurgical generator that directs current

Resistance (Impedance) Resistance to the flow of alternating current, including simple direct current re -

A surgical technique used to cut or coagulate cellular tissue. To avoid muscle
contractions, only high frequency currents and voltages of more than 100 kHz
are used. The electric current directs the heat into the tissue. The patient is con­nected to two electrodes, allowing the current to flow through the body. The ac ­tive electrode will generate a large amount of heat, due to the high current densi ­ty and the small surface of the electrode.

generator and its connecting cables.

(neutral plate) electrode. The small surface of the active electrode provides very
good results in coagulating and cutting. The neutral plate of modern units is
split, thus controlling the circuit, including the contact between electrodes and
patient.

through the patient to a patient return electrode.

sistance and the resistance produced by capacitance or inductance. The resis­tance of a material is its tendency, measured in ohms, to oppose the flow of
electric current or, viewed another way, the material's tendency not to conduct
the current.

REM Return Electrode Monitor.

A-1

This page intentionally left blank

A-2

Appendix B - DIAGRAMS

Processor Board Component Location Diagram................................................................................B-2

Schematic Diagram Part 1 (Processor Board)....................................................................................B-3

Schematic Diagram Part 2 (Processor Board)...................................................................................B-4

Sampling Unit Component Location Diagram...................................................................................B-5

Schematic Diagram Part 3 (Sampling Unit).......................................................................................B-6

Schematic Diagram Part 4 (Sampling Unit).......................................................................................B-7

Schematic Diagram Part 5 (Sampling Unit)......................................................................................B-8

Load Board Component Location Diagram......................................................................................B-9

Schematic Diagram Part 6 (Load Board)..........................................................................................B-10

B-1

FIXED

LOAD

FOOT

SWITCH

CS

SCK

MOSI

VARIABLE

LOAD

Metron QA-ES Electrosurgical analyzer

Schematic diagramLoad board,

Measurement

signal

output

20dB attn.

10dB attn.

SCOPE

OUTPUT

VEE

CLOCK

DATA IN

LGND

DATA OUT

VDD

STROBE

/OE

VEE

K

OUT8

OUT7

OUT6

OUT5

OUT4

OUT3

OUT2

OUT1

U2

123456789

101112131415161718

VEE

CLOCK

DATA IN

LGND

DATA OUT

VDD

STROBE

/OE

VEE

K

OUT8

OUT7

OUT6

OUT5

OUT4

OUT3

OUT2

OUT1

U3

123456789

101112131415161718

K8 K7 K6 K4 K3K10 K9 K5 K2

R16

3K0

R15

620R

R14

1K0

R13

470R

R12

330R

R11

200R

R10

200R

R9

100R

R8

100R

R6 200R

R7 200R

R5

47R

R4

15R

R3

9.1R

K1

J6

+12V

+12V

J7

R17

100R

R18

100R

J10

J11

J8

J9

K11

+12V

R1

2.0R

82R

R27

82R

R28

K12

R19

100R

R20

26.1R

R21

34.8R

R22

26.1R

+12V

F1

600mA

D2

23461

J1

5

4

5

3

2

1

J2

6

F2

600mA

C1

2200u

C2

2200u

R23

249R

R24

750R

C3

10u

IN OUT

ADJ

U1

1

23

+12V

-12V -7V

+12V-12V

-7V

-12V

+12V+12V

100R

R25

82R

R26

82R

R29

R30

10R

K13

J12

J13

R31

51R

L1

J14

1

2

3

+12V

AR061-941124rg

B-2

AR061-941124rg

+

+

+

R1

R3

R4

R5

R6

R7

R8

R9

R10

R11

R12

R13

R14

R15

R16

R17

R18

R19

R20

R21

R22

R23

R24

C1

C2

C3

K1

K2 K3

K4 K5 K6

K7

K8 K9

K10

K11

F1

F2

U1

U2

U3

J1

J2

K12

J6

J7

J8

J9

J10

J11

D2

R25

R26
R27

R28

R29

R30

K13

J12

J13

R31

L1

J14

B-3

F1 F2 F3 F4 F5

D0D1D2D3D4

D5D6D7

D0D1D2D3D4D5D6

D7

CS7

CS8

CS9

PF3

PF5

PF7

/RESET

A1

A1

ENTER CANCEL

RCS

LD

SCK

PDRESET

MISO

TXD

RXD

CS5

CS4

CS3

PGP5

PGP4

D0D1D2D3D4D5D6

D7

PF3

PWMA

PF7

PF5

PF3

PGP0

PGP1

PGP0

PGP1

Remote

RF Detect

PGP7

PGP6

PGP3

PGP2

PGP3

PGP2

PGP2

CS3

CS4

CS5

CS7

MOSI

SCK

MOSI

PF1

PQS6

PADA0

PF1

PADA0

PQS6

Metron QA-ES Electrosurgical analyzer

Processor board

Schematic diagram, part 1 of 2

VSS

/CSBOOT

/CSROM

/OEROM

PWMA

PWMB

PAI

PCLK

IC1/PGP0

IC2/PGP1

IC3/PGP2

OC1/PGP3

OC2/PGP4

OC3/OC1/PGP5

OC4/OC1/PGP6

/IRQ5/PF5

IC4/OC5/OC1/PGP7 /RESET

/IRQ7/PF7

VDD

AN0/PADA0

AN1/PADA1

AN2/PADA2

AN3/PADA3

TXD/PQS7

PCS3/PQS6

PCS2/PQS5

PCS1/PQS4

PCS0/SS/PQS3

SCK/PQS2

MOSI/PQS1

MISO/PQS0

RXD

FC0/CS3/PC0

FC1/CS4/PC1

FC2/CS5/PC2

VSS VSSA

/CS9/PC6

/CS10

/CS8/PC5

/CS7/PC4

R/W

ADDR8

/HALT

ADDR7

ADDR6

ADDR5

ADDR4

ADDR3

ADDR2

ADDR1

ADDR0

VRHP

VDDA

/IRQ3/PF3

/IRQ1/PF1

DATA15

DATA14

DATA13

VSTBY

DATA12

DATA11

DATA10

DATA9

DATA8

DATA0

VSS

U1

123456789101112131415161718192021222324252627282930313233

34

353637383940414243444546474849505152535455565758596061626364656667

68

SW1 SW2 SW3 SW4 S W5

RP1

47K

FG

VSS

VCC

VEE

/WR

/RD

/CENCC/D

/RESETD0D1D2D3D4D5D6D7FSNC

DISPLAY

MODULE

Back-

light

DISP1

12345678910111213141516171819

20

SW6 SW7

16151413121110

9876543

2J11

+5V

EN

C1

1D

1

11

3

4

7

8

13

14

17

18

2

5

6

9

12

15

16

19

U2

+5V +5V +5V +5V

+5V +5V

+5V

Q1

R1

100K

R2

10K

+5V

R3

22K

+5V

+5V

SW8

D1

D2

R4

330

R5

330

D7

D8

+5V

TP1

R15

10K

R14

2K2

-12V

R16

6K8

+5V

VSS

VDD

A0A1A2

TEST

SDA

SCL

U13

123

4

5

6 7

8

D10

R18

10K

R19

10K

+5V

IN OUT

ADJ

U12

1

23

C4

1u

IN OUT

GND U11

2

31

+5V

AR060-941121rg

B-4

PRINTER

PORT

RXD

TXD

DATA1

DATA2

DATA3

DATA4

DATA5

DATA6

DATA7

DATA8

SEL_IN

/ERR

SLCTPEBUSY

/ACK

SERIAL

PORT

D0D1D2D3D4D5D6

D7

D0D1D2D3D4D5D6

D7

PGP7

PGP6

PGP5

PGP4

uCBUS

FAN

AC IN

PWMA

/RESET

CS8

CS9

-­1--

6--

2--

7--

3--

8--

4--

9--

5--

--2

--3

--4

--5

--6

--7

--8

--9

--1

--14

--16

--17

--18

--19

--20

--21

--22

--23

--24

--25

--10

--11

--12

--13

--15

--

/STROBE

/AUTOFD

/INIT

Metron QA-ES Electrosurgical analyzer

Processor board

Schematic diagram, part 2 of 2

IN OUT

ADJ

U8

1

23

FI15

FI16

FI17

FI18

FI19

RP3

10K

RP4

2K2

+5VPrint

FI11

FI4

FI3

FI5

FI6

FI7

FI8

FI9

FI10

FI12

FI13

FI14

EN

C1

1D

1

11

3

4

7

8

13

14

17

18

2

5

6

9

12

15

16

19

U3

987654321

J2

10

24222018161412

10

42523

21J319

862J31

171513

1197

5J33

26

1

U4

1

2

1

U4

3

4

1

U4

5

6

1

U4

9

8

1

U4

11

10

1

U4

13

12

RP2

4K7

EN

C1

1D

1

11

3

4

7

8

13

14

17

18

2

5

6

9

12

15

16

19

U5

VDD VCC

VSS GND

R

R

RDD

D

U6

1

23456

7

8 9

10

11

12

13

14

15

16

FI2

FI1

+5V+12V

-12V

D5

C7

220u

C8

100n

-12V

VIN

OSCLVBOOST

GND

VOUT

CAP+

CAP-

U9

1

234

5

6

7

8

C6

10u C9

100n R12

10K

TP6

J4

J5

C1

2200u

F1

0.63A

R7

10K

R8

22

R10

750

R11

240

R9

1K

Q2

C2

10u

C3

10u

R13

22K

+12V

+5V

D3

+12V

U

R6

+5VPrint

D4

C5

10u

+5VPrint

+5V

TP5

TP4

TP3

TP2

UNDERVOLT

SENSING

+5V

GND

OUT

U10

1

2

3

C10

100n

C11

100n

C12

100n

C13

100n

+5V+5V+5V+5V

TP7

R17

22

Q4

D9

AR060-941121rg

B-5

---

GND.

Processor board

METRON QA-ES

Electrosurgical analyzer

VAC

+-FAN

+12V

+5V

-12V

UFAN

AR075-950427rg

+

+

+

+

+

+

J1

J3J2

U1

U2

DISP1

U3

U4

U5

U6

U8

U9

U10

SW1SW2SW3SW4

SW5

SW6

SW7

SW8

R1

R2

R3

R4

R5

D1

D2

Q1

RP1

TP1

F1

R6

R7

R8

R9

R10

R11

R12

C1

C2

C3

C5

C6

C7

C8

C9

RP2

RP3

D3

D4

D5

FI1

FI2

FI3

FI19

Q2

TP2

TP3

TP4

TP5

TP6

R13

RP4

J4

J5

C10

C11

C12

C13

D7

D8

R14

R15

R16

TP7

R17

D9

Q4

U11

U12

U13

R1

8

R19

D10

C4

B-6

AD834

S3

S2

S1

RF_INPUT

Metron QA-ES Electrosurgical analyzer

Sampling unit

Schematic diagram, part 1 of 3

J4

TP0

R1

10K

R2

10K

R3

10K

-

+

v+

v-

n

c

n

U13

2

3

6

5

4

1

78

C5

150p

C6

470p

C7

150p

U15

1 2 3 4

5678

R22

100R

R23

100R

R24

24R9

R25

75R

R26

75R

R27

10R

C8

100n

C9

100n

C10 10n

C11

10n

R28

160R

R29

47k

R30

10K

R31

10K

R32

47K

R33

47K

R34

10R

R35

100R

R36

100R

+6V

-6V

R37

10R

-6V

C48

1u

C49

1u

C50

NC

C51

NC

C52

1u

C53

1u

L1

1u

L2

1u

R38

2K0

-6V

+6V

R39

18K

R40

1K8

IN OUT

ADJ

U16

1

23

IN OUT

ADJ

U17

1

23

IN OUT

ADJ

U19

1

32

R41

750R R42 249R

R43

953R R44 249R

R45

953R R46 249R

R47

249R

R48

1K5

+5V

+12V

+6V

-6V

C16

10u

C17

10u

C18

10u

C19

1u

C54

10u

C55

10u

6

5

J1

4

3

J1

1

2

C36

10n

C37

10n

-

+

v+

v-

n

c

n

U25

2

3

6

5

4

1

7

8

R85

47K C38

10n

C39

10n

C40

NC

C41

10n

C42

10n

C66

1u

C67

1u

R4

10K

-

+

v+

v-

n

c

n

U14

2

3

6

5

4

1

78

R50

2K0

-6V

+6V

R51

18K

R52

1K8

C43

NC

C44

10n

C45

10n

C68

1u

C69

1u

C46

100p

R86

4K7

R87

4K7

C47

100p

R88

4K7

-9V

R89

2K2R90 390R

+9V

C70

1u

-12V

TP1

TP2

TP3

TP4

TP5

TP6

TP14

TP15

TP16

TP17

TP18

IN OUT

ADJGND

ON/

OFF

U18

12 3

4 5

IN OUT

ADJGND

ON/

OFF

U20

12 4

3 5

AR069-950331rg

B-7

D0D1D2D3D4D5D6D7D8D9D10

D11

D11

D10D9D8D7D6D5D4

LD

SCK

MISO

RCS

RMOSI

RSCK

D3D2D1

D0

MOSI

LD_MUX

S7S6S5S4S3S2S1

Metron QA-ES Electrosurgical analyzer

Sampling unit

Schematic diagram, part 2 of 3

D0D1D2D3D4D5D6D7D8

D9

D10

D11

/CS

/RD

HBEN

/BUSY

AIN

VREF

DGND

AGND

VDD

CLKIN

CLKOUT

NC

U1

1

2

3

45678910

1112131415

16

17

18

192021

22

23

24

4C1/4

C3/M4

EN

C2

SRG8

2D 3D

3D

3D

111310

12

15

1234567

14

9

1D

U2

4C1/4

C3/M4

EN

C2

SRG8

2D 3D

3D

3D

111310

12

15

1234567

14

9

1D

U3

&

U4

12

13

11

&

U4

9

10

8

&

U4

4

5

6

&

U4

1

2

3

R5

750R

C1

100p

U5

123

45

678

U6

123

45

678

U7

123

45

678

U8

123

45

678

U9

123

4 5

678

U10

123

45

678

U11

123

45

678

U12

123

45

678

R6

470R

R7

470R

R8

470R

R9

470R

R10

470R

R11

470R

R12

470R

R13

470R

R14

470R

R15

470R

R16

470R

R17

470R

+5V

R18

470R

R19

470R

R20

470R

R21

470R

Y1

C2

47p

C3

47p

C4

100n

+5V

J2

1

2

3

4

6

5

C13

10u

C14

10u

16

14

12

10

8

6

4

2J31

5

7

9

11

13

3

15

C15

10u

C21

100n

C20

10u

C12

100n

R49

10K

+5V

S1S2S3S4S5S6S7

S8

D

V- GND

RS

DOUT

DINLDCLK

V+ Vl

U24

1

2

345

6

7

8910

11

121314

15

16

17

18

+6V

-6V

+5V

C35

100n

D7

TP12

TP13

AR069-950331rg

B-8

S5

S7

S6

S4

Metron QA-ES Electrosurgical analyzer

Sampling unit

Schematic diagram, part 3 of 3

RF_INPUT

IC22, pin 8

IC22, pin 4

IC23, pin 8

IC23, pin 4

D14 D15

+

-

n

n

tz

U21

1

2

345

6

7

8

-

+

U23

6

5

7

-

+

U22

6

5

7

-

+

U23

2

3

1

-

+

U22

2

3

1

R53

3K3

R54

1K

R55

750R

R56

4R7

R57

4R7

R58

10R

R59

10K

R60

1K8

R61

51R

R62

4K7

R63

2K7

R64

470R

C22

1p0

C23

10n

C24

10n

C25

10n

C26

10n

C27

1n

C28

1n

C29

10n

C30

10n

C56

1u

C57

1u

C58

1u

C59

1u

C60

1u

C61

1u

+9V

-9V

-9V

-9V

-9V

-9V

+9V

+9V

+9V

+9V

D1

D2

D3

D4

D5 D6

Q1

Q2

Q4

Q5

R65

1K5

R66

10M

R67

470R

R68

2K7

R69

4K7

R70

10K

R71

1K8

R72

51R

R73

1K5

R74

10m

R75

1K2

R76

3K6

R77

2K0

R78

10K

R79

10K

R80

10K

R81

1K5

C31

10n

C32

10n

C33

10n

C34

10n

C62

1u

C63

1u

C64

1u

C65

1u

R82 R83

D8 D13D12D11D10D9

C72C71

+12V -12V

TP7

TP8

TP9

TP10

TP11

AR069-950331rg

B-9

C1

C2

C3

C4

C5

C6

C7

C8C9

C10

C11

C12

C13

C14

C15

C16

C17

C18

C19

C20

C21

C22

C23

C24

C25

C26

C27

C28

C29

C30

C31

C32

C33

C34

C35

C36

C37

C38

C39

C40

C41

C42

C43

C44

C45

C46

C47

C48

C49

C50

C51

C52

C53

C54

C55

C56

C57

C58

C59

C60

C61
C62

C63

C64

C65 C66

C67

C68

C69

C70

C71

C72

D1

D2

D3

D4 D5

D6

D7

D8

D9

D10

D11

D12

D13

D14

D15

IC1

IC2

IC3

IC4

IC5IC6 IC7 IC8IC9 IC10 IC11 IC12

IC13 IC14

IC15

IC16

IC17

IC18

IC19

IC20

IC21

IC22IC23

IC24

IC25

J1

J2

J3

J4

L1 L2

Q1

Q2

Q4

Q5

R1R2R3 R4

R5

R6

R7

R8
R9

R10

R11

R12

R13

R14

R15

R16

R17

R18

R19

R20

R21

R22
R23

R24

R25 R26
R27

R28

R29

R30

R31

R32

R33

R34

R35

R36

R37

R38

R39

R40

R41

R42

R43

R44

R45

R46

R47

R48

R49

R50

R51

R52

R53

R54
R55 R56
R57

R58

R59
R60

R61

R62
R63
R64

R65

R66

R67

R68

R69

R70

R71

R72

R73 R 74

R75

R76

R77

R78

R79

R80

R81

R82

R83

R85

R86

R87

R88

R89

R90

TP1

TP2

TP3

TP4 T P5

TP6

TP7

TP8

TP9

TP10

TP11

TP12

TP13

TP14

TP15

TP16 TP17

TP18

Y1

B-10

USA

1345 Monroe NW, Suite 255A
Grand Rapids, MI 49505
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]

From: (name)       Phone:      
Address:       Fax:

E-mail:      
      Date:

FRANCE

30, rue Paul Claudel
91000 Evry, France
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]

NORWAY

Travbaneveien 1
N-7044 Trondheim, Norway
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]

Error Report

Product:       Version:       Serial no.:

Description of the situation prior to the error:      

Description of the error:      

(METRON AS internally)
Comments:

Received date:       Correction date:       Ref No.       Critical Normal Minor

C-1

USA

1345 Monroe NW, Suite 255A
Grand Rapids, MI 49505
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]

FRANCE

30, rue Paul Claudel
91000 Evry, France
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]

NORWAY

Travbaneveien 1
N-7044 Trondheim, Norway
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]

From:

      Phone:      

(name)
Address:       Fax:

E-mail:      
      Date:

Improvement Suggestion

Product:       Version:      

Description of the suggested improvement:      

(METRON AS internally)
Comments:

Received date:       Correction date:       Ref No.       Critical Normal Minor

D-1

USA

1345 Monroe NW, Suite 255A
Grand Rapids, MI 49505
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]

FRANCE

30, rue Paul Claudel
91000 Evry, France
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]

NORWAY

Travbaneveien 1
N-7044 Trondheim, Norway
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]