Microtest 7600 Manual de usuario

HI-POT TESTER

7600

User Manual

- 2 -

Contents

1. Safety ................................................................................................................................................- 3 -

1.1 General ..................................................................................................................................- 3 -

AC Power Supply..............................................................................................................................- 4 -

1.2 Adjustment, Maintenance and Repair...................................................................................- 5 -

1.3 Static Electricity....................................................................................................................- 5 -

2. General:.............................................................................................................................................- 6 -

2.1Packing and accessories:..............................................................................................................- 6 -

2.2 The Front Panel:..........................................................................................................................- 6 -

2.3 The Rear Panel ............................................................................................................................- 7 -

2.4 Function block diagram: .............................................................................................................- 8 -

3. Display instruction ............................................................................................................................- 9 -

4. Operation:........................................................................................................................................- 10 -

4.1 Testing mode and voltage setting:.......................................................................................- 10 -

4.2 Upper limit setting and zero trim: .......................................................................................- 11 -

4.3 Lower limit setting:.............................................................................................................- 12 -

4.4 The setting for sensitivity of electric arc:............................................................................- 12 -

4.5 Setting for dwell time and voltage ramping time:...............................................................- 13 -

5. Function key instruction: ................................................................................................................- 13 -

6. Remote control:...............................................................................................................................- 17 -

7. Apprications:...................................................................................................................................- 18 -

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1. SAFETY

1.1 General

This equipment has been designed to meet the requirements of EN61010-1 ‘Safety requirements

for electrical equipment for measurement, control & laboratory use’ and has left the factory in a

safe condition.

The following definitions in EN61010-1 are applicable:

OPERATOR Person operating equipment for its intended purpose.

Note: The OPERATOR should have received training

appropriate for this purpose.

RESPONSIBLE

BODY

Individual or group responsible for the use and

maintenance of equipment and for ensuring that

operators are adequately trained.

The RESPONSIBLE BODY must ensure that this equipment is only used in the manner specified.

If it is not used in such a manner, the protection provided by the equipment may be impaired.

This product is not intended for use in atmospheres which are explosive, corrosive or adversely

polluted (e.g. containing conductive or excessive dust). It is not intended for use in safety critical

or medical applications.

The equipment can cause hazards if not used in accordance with these instructions. Read them

carefully and follow them in all respects.

Do not use the equipment if it is damaged. In such circumstances the equipment must be

made inoperative and secured against any unintentional operation.

- 4 -

AC Power Supply

Power cable and connector requirements vary between countries. Always use a cable that

conforms to local regulations, terminated in an IEC320 connector at the instrument end.

If it is necessary to fit a suitable AC power plug to the power cable, the user must observe the

following colour codes:

WIRE EUROPEAN N. AMERICAN

LIVE BROWN BLACK

NEUTRAL BLUE WHITE

GROUND GREEN/YELLOW GREEN

The user must also ensure that the protective ground lead would be the last to break should the

cable be subject to excessive strain.

If the plug is fused, a 3-amp fuse should be fitted.

If the power cable electrical connection to the AC power plug is through screw terminals then, to

ensure reliable connections, any solder tinning of the cable wires must be removed before fitting

the plug.

Before switching on the equipment, ensure that it is set to the voltage of the local AC power

supply.

WARNING!

Any interruption of the protective ground conductor inside or outside the equipment or

disconnection of the protective ground terminal is likely to make the equipment dangerous.

Intentional interruption is prohibited.

- 5 -

1.2 Adjustment, Maintenance and Repair

WARNING!

The equipment must be disconnected from all voltage sources before it is opened for any

adjustment, replacement, maintenance, or repair.

When the equipment is connected to the local AC power supply, internal terminals may be live

and the opening of the covers or removal of parts (except those to which access can be gained

by hand) is likely to expose live parts.

Capacitors inside the equipment may still be charged even if the equipment has been

disconnected from all voltage sources.

Any adjustment, maintenance, or repair of the opened equipment under voltage must be carried

out by a skilled person who is aware of the hazards involved.

Service personnel should be trained against unexpected hazards.

Ensure that only fuses with the required rated current and of the specified type are used for

replacement. The use of makeshift fuses and short-circuiting of fuse holders is prohibited.

1.3 Static Electricity

The unit supplied uses static-sensitive devices. Service personnel should be alerted to

components which require handling precautions to avoid damage by static electrical discharge.

Before handling circuit board assemblies containing these components, personnel should

observe the following precautions:

1) The work surface should be a conductive grounded mat.

2) Soldering irons must be grounded and tools must be in contact with a conductive

surface to ground when not in use.

3) Any person handling static-sensitive parts must wear a wrist strap which provides a

leaky path to ground, impedance not greater than 1M .

4) Components or circuit board assemblies must be stored in or on conductive foam or mat

while work is in progress.

5) New components should be kept in the supplier’s packaging until required for use

- 6 -

2. GENERAL:

2.1Packing and accessories:

The standard accessories for the HT-7600 high-pot tester are the following items:

1. HT-7600 hi-pot tester *1

2. High voltage testing lead (red) *1

3. High voltage testing lead (black) *1

4. Power cord *1

5. Power cord adapter*1

6. Operation manual *1

7. High voltage safety plug *1

2.2 The Front Panel:

(1) LCD display

(2) S1 ~ S5 Soft Key

(3) Test button (including PASS light)

(4) Power switch

(5) Abort button (including FAIL light)

(6) High voltage output terminal

(7) High voltage alarm light

(3) (4) (5) (6)

(8)

(7)

(1)(2)

- 7 -

2.3 The Rear Panel

(1) AC power socket

(2) Fuse holder

(3) Grounding terminal

(4) Inter-lock plug

(5) Remote control port

(6) Voltage selector

(7) Serial port

(1)

(5) (6) (7)

(4)

(3) (2)

- 8 -

2.4 Function block diagram:

- 9 -

3. DISPLAY INSTRUCTION

(1) Display the testing file, S stands for single file, M stands for multi-test files. The two

numerical digits following the character stand for the file number.

(2) Display the tested voltage value of the high voltage output terminal.

(3) Display the set voltage value.

(4) Display the upper limit value

(5) Display the lower limit value.

(6) Display the tested current value. Or display resistance value when switched to IR model.

(7) Display the sensitivity of set electric arc. Display OFF when the function is turned off.

(8) Display elapsed time.

(9) Display the set testing time.

(10) Display the unit of measurement. Show up Ωin IR model.

(11) Message row. Display the testing status.

(12) Display testing mode, including AC, DC and IR.

(1)

(2)

(3) (4) (5) (6) (7) (8) (9)

(10)

(12)

(11)

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4. OPERATION:

Before testing, please assure the high voltage safety plug (inter-lock plug) is plugged

appropriately. If not, high voltage will not be generated, and the display will show ‘’HI-POT

LOCK’’.

4.1 Testing mode and voltage setting:

Press S1 to show setting display as figure 1.

Parameter 1 is testing model setting. Press S1 to choose AC, DC, or IR.

Parameter 2 is AC frequency setting. Press S3 to choose 50 or 60 HZ.

Parameter 3 is output voltage setting. Press S5 to enter voltage setting display as figure 2,

then press S2 ~ S3 to adjust voltage. Press S3 to add 1 on the value, and S4 to subtract 1. S5

to input set value, and will adjust the value into maximum if your setting is higher than the

maximum value, or adjust it into minimum if the setting is lower than the minimum value.

Figure 1

Figure 2

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