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.

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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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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).

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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)

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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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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).

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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

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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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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.)

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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

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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.

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