EEC EST-300 Series User manual

EST-300 Series

EST-310/EST-320/EST-330

Electrical Safety Analyzer

User Manual

E1.05

WARRANTY

EEC certifies that the instrument listed in this manual meets or exceeds published

manufacturing specifications. This instrument was calibrated using standards that are traceable

to Chinese National Laboratory Accreditation (CNLA).

Your new instrument is warranted to be free from defects in workmanship and material for a

period of (2) year from date of shipment. During the warranty period, you must return the

instrument to EEC or its branches or its authorized distributor for repair. EEC reserves the right

to use its discretion on replacing the faulty parts or replacing the assembly or the whole unit.

Any non-authorized modifications, tampering or physical damage will void your warranty.

Elimination of any connections in the earth grounding system or bypassing any safety systems

will void this warranty. This warranty does not cover batteries or accessories not of EEC

manufacture. Parts used must be parts that are recommended by EEC as an acceptable

specified part. Use of non-authorized parts in the repair of this instrument will void the

warranty.

This warranty does not cover accessories not of EEC manufacture.

Except as provided herein, EEC makes no warranties to the purchaser of this instrument and all

other warranties, express or implied (including, without limitation, merchantability or fitness

for a particular purpose) are hereby excluded, disclaimed and waived.

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

1.1 Safety Symbols ............................................................................................................ 1

1.1.1 Product Marking Symbols .................................................................................... 1

1.1.2 Caution and Warning Symbols ............................................................................. 1

1.2 Glossary of Terms ........................................................................................................ 2

1.3 Safety........................................................................................................................... 3

1.3.1 Service and Maintenance..................................................................................... 3

1.3.2 Test Station.......................................................................................................... 3

1.3.3 Test Operator ...................................................................................................... 4

1.3.4 Instrument Connections ...................................................................................... 5

1.3.5 Device Under Test................................................................................................ 5

1.3.6 Key Safety Points to Remember........................................................................... 6

1.4 Introduction to Product Safety Testing........................................................................ 6

1.4.1 The Importance of Safety Testing ........................................................................ 6

1.5 The Different Types of Safety Tests ............................................................................. 7

1.5.1 Dielectric Withstand Test..................................................................................... 7

1.5.2 Insulation Resistance Test.................................................................................. 10

1.5.3 Ground Bond Test.............................................................................................. 10

1.6 Key Features and Benefits ......................................................................................... 11

2. Getting Started...............................................................................................12

2.1. Unpacking and Inspection........................................................................................ 12

2.1.1 Packaging........................................................................................................... 12

2.1.2 Returning the Instrument .................................................................................. 12

2.2 Installation................................................................................................................. 12

2.2.1 Work Area ......................................................................................................... 12

2.2.2 Power Requirements ......................................................................................... 13

2.2.3 Basic Connections.............................................................................................. 13

2.2.4 Environmental Conditions.................................................................................. 13

3. Specifications and Controls............................................................................14

3.1 Specifications............................................................................................................. 14

3.2 Instrument Controls................................................................................................... 17

3.2.1 EST-300 Series Front Panel Controls................................................................... 17

3.2.2 EST-300 Series Rear Panel Controls.................................................................... 18

4. Programming Instructions .............................................................................19

4.1 Using the Touch Screen ............................................................................................. 19

4.2 Main Menu ................................................................................................................ 20

4.3 Setup System ............................................................................................................. 21

4.3.1 Time and Date ................................................................................................... 21

4.3.2 Calibration Alert................................................................................................. 22

4.3.3 Hardware........................................................................................................... 23

4.3.4 User Interface.................................................................................................... 25

4.3.5 Information ....................................................................................................... 27

4.4 SCREEN LOCK..............................................................................................................28

4.5 FAILCHEK....................................................................................................................28

4.5.1 AC Hipot FAILCHEK.............................................................................................29

4.5.2 DC Hipot FAILCHEK.............................................................................................30

4.5.3 IR FAILCHEK........................................................................................................30

4.6 Test Parameters.........................................................................................................31

4.6.1 Description of Test Parameters ..........................................................................31

4.6.2 Additional Parameter Notes and Functions ........................................................32

4.7 Setup Tests.................................................................................................................33

4.7.1 ACW...................................................................................................................34

4.7.2 DCW...................................................................................................................34

4.7.3 IR .......................................................................................................................35

4.7.4 View Test Files ...................................................................................................35

4.7.5 Edit Test Files .....................................................................................................36

4.8 PERFORM TESTS.........................................................................................................36

5. Test Connections............................................................................................39

5.1 Connecting the Test Leads .........................................................................................39

5.2 Connecting the Adaptor Box ......................................................................................39

5.3 Interlock Connector ...................................................................................................39

6. Results Screens.........................................................................................40

6.1 Error Messages and Fail Messages.............................................................................41

7. Connection of Remote I/O .............................................................................43

7.1 Remote Signal Outputs ..............................................................................................43

7.2 Remote Signal Inputs and Memory Access ................................................................44

8. Bus Remote Interface USB .............................................................................45

8.1 USB Interface Command List......................................................................................45

8.1.1 Rules for Sending Commands to the Instrument ................................................45

8.1.2 Test Execution Commands .................................................................................45

8.1.3 File Editing Commands.......................................................................................46

8.1.4 Test Parameter Editing Commands and Companion Queries..............................47

8.1.5 System Parameter Editing Commands and Companion Queries .........................48

8.1.6 Status Reporting ................................................................................................50

9. CALIBRATION..................................................................................................52

9.1 Warranty Requirements ............................................................................................52

9.2 Calibration Initialization.............................................................................................53

9.3 Calibration of Parameters..........................................................................................53

1. Introduction

1.1 Safety Symbols

1.1.1 Product Marking Symbols

Product will be marked with this symbol when it is necessary to refer to the operation

and service manual in order to prevent injury or equipment damage.

Product will be marked with this symbol when hazardous voltages may be present.

Product will be marked with this symbol at connections that require earth grounding.

1.1.2 Caution and Warning Symbols

Calls attention to a procedure, practice, or condition that could possibly

cause bodily injury or death.

Calls attention to a procedure, practice, or condition that could possibly

cause damage to equipment or permanent loss of data

1.2 Glossary of Terms

Alternating Current, AC: Current that reverses direction on a regular basis, commonly in the U.S.A.

60 per second, in other countries 50 times per second.

Breakdown: The failure of insulation to effectively prevent the flow of current sometimes

evidenced by arcing. If voltage is gradually raised, breakdown will begin suddenly at a certain

voltage level. Current flow is not directly proportional to voltage. Once breakdown current has

flown, especially for a period of time, the next gradual application of voltage will often show

breakdown beginning at a lower voltage than initially.

Conductive: Having a volume resistivity of no more than 103 ohm-cm or a surface resistivity of no

more than 105 ohms per square.

Dielectric: An insulating material that is positioned between two conductive materials in such a

way that a charge or voltage may appear across the two conductive materials.

Direct Current, DC: Current that flows in one direction only. The source of direct current is said to

be polarized and has one terminal that is always at a higher potential than the other.

Hipot Tester: Common term for dielectric-withstand test equipment.

Insulation: Gas, liquid or solid material which has a volume resistivity of at least 1012 ohm-cm and

is used for the purpose of resisting current flow between conductors.

Insulation Resistance Tester: An instrument or a function of an instrument capable of measuring

resistance's in excess of 200 megohms. Usually employs a higher voltage power supply than used

in ohmmeters measuring up to 200 megohms.

Leakage: AC or DC current flow through insulation and over its surfaces, and AC current flow

through a capacitance. Current flow is directly proportional to voltage. The insulation and/or

capacitance are thought of as a constant impedance, unless breakdown occurs.

Resistance: That property of a substance that impedes current and results in the dissipation of

power, in the form of heat. The practical unit of resistance is the ohm. Symbol = R

Trip Point: A minimum or maximum parameter set point that will cause an indication of

unacceptable performance during a run test.

Voltage: Electrical pressure, the force which causes current through an electrical conductor.

Symbol = V

1.3 Safety

This product and its related documentation must be reviewed for familiarization with safety

markings and instructions before operation.

This product is a Safety Class I instrument (provided with a protective earth terminal).

Before applying power verify that the instrument is set to the correct line voltage and the correct

fuse is installed (Please refer to 3.1 Specifications).

A Hipot produces voltages and currents that can cause harmful or fatal

electric shock. To prevent accidental injury or death, these safety

procedures must be strictly observed when handling and using the test

instrument.

1.3.1 Service and Maintenance

User Service

To prevent electric shock do not remove the instrument cover. There are no user serviceable parts

inside. Routine maintenance or cleaning of internal parts is not necessary. Avoid the use of

cleaning agents or chemicals on the instrument, some chemicals may damage plastic parts or

lettering. Any external cleaning should be done with a clean dry or slightly damp cloth. Schematics,

when provided, are for reference only. Any replacement cables and high voltage components

should be acquired directly from EEC. Refer servicing to EEC customer support department.

Service Interval

The instrument, its power cord, test leads, and accessories must be returned at least once a year

to EEC customer support department for calibration and inspection of safety related components.

EEC will not be held liable for injuries suffered if the instrument is not properly maintained and

safety checked annually.

User Modifications

Unauthorized user modifications will void your warranty. EEC will not be responsible for any

injuries sustained due to unauthorized equipment modifications or use of parts not specified by

EEC. Instruments returned to EEC with unsafe modifications will be returned to their original

operating condition at the customers expense.

1.3.2 Test Station

Location

Select an area away from the main stream of activity which employees do not walk through in

performing their normal duties. If this is not practical because of production line flow, then the

area should be roped off and marked for HIGH VOLTAGE TESTING. No employees other than the

test operators should be allowed inside.

If benches are placed back-to-back, be especially careful about the use of the bench opposite the

test station. Signs should be posted: "DANGER - HIGH VOLTAGE TEST IN PROGRESS -

UNAUTHORIZED PERSONNEL KEEP AWAY."

Work Area

Perform the tests on a non-conducting table or workbench, if possible. If you cannot avoid using a

conductive surface, be certain that it is connected to a good earth ground and the high voltage

connection is insulated from the grounded surface.

There should not be any metal in the work area between the operator and the location where

products being tested will be positioned. Any other metal in the work area should be connected to

a good ground, never left "floating".

Position the tester so the operator does not have to reach over the product under test to activate

or adjust the tester. If the product or component being tested is small, it may be possible to

construct guards or an enclosure around the device to be tested. Construct the guards of a non-

conducting material such as clear acrylic, so that the item being tested is within the guards or

enclosure during the test. If possible, the guards or enclosure should also contain safety switches

that will not allow the tester to operate unless the guards are in place or the enclosure closed.

Keep the area clean and uncluttered. All test equipment and test leads not necessary for the test

should be removed from the test bench and put away. It should be apparent to both the operator

and to any observers, the product that is being tested and the product that is waiting to be tested,

or has already been tested.

Do not perform Hipot tests in a combustible atmosphere or in any area where combustible

materials are present.

Power

Dielectric Voltage-Withstand Test Equipment must be connected to a good ground. Be certain that

the power wiring to the test bench is properly polarized and that the proper low resistance

bonding to ground is in place.

Power to the test station should be arranged so that it can be shut off by one prominently marked

switch located at the entrance to the test area. In case of an emergency, anyone can cut off the

power before entering the test area to offer assistance.

1.3.3 Test Operator

Qualifications

This instrument generates voltages and currents that can cause harmful or fatal electric shock and

must only be operated by a skilled worker trained in its use.

The operator should understand the electrical fundamentals of voltage, current, and resistance.

They should recognize that the test instrument is a variable high-voltage power supply with the

return circuit directly connected to earth ground, therefore, current from the high-voltage output

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