• เครื่องวัดไฟฟ้าสถิตย์ AE-800

ARMEKA AE-800 ESD TESTER เครื่องวัดไฟฟ้าสถิต เครื่องตรวจไฟฟ้าสถิต เครื่องวัดความต้านทานผิว Surface Resistance meter.

AE-800 Megohmmeter.

The AE-800 Megohmmeter kit measures surface resistivity, resistance, temperature and humidity. It is

designed to test conductive, anti-static, and static dissipative surfaces for electrical resistivity/resistance

according to EOS/ESD, CECC, ANSI, ASTM and UL test procedures.

The internal parallel electrodes comply with DIN EN 100 015/1 & ANSI/ESDA-S11.11. The five pound

electrodes can be externally connected for tests according to IEC 61340-4-1, ANSI/ESDA S4.1 &

ANSI/ESDA S7.1.

AE-800 Megohmmeter Includes:

Tester

Two 5lb probes

One ground cord

Two accordion cables (monaural to banana)

110 power adapter*

9 volt battery

Foam lined carrying case

Certificate of calibration

*AE-800 Celsius models come equipped with 220v power adapter unless specified

AE-800 Optional Accessories

Concentric Ring Probe

Miniature Ring Probes

Garment Clips for smocks

Limits

Resistivity: 103-1012 ohms/sq

Resistance: 103-1012 ohms

Relative Humidity: 10% - 90% RH

Temperature: 32℉to 100℉or 0℃– 37.7℃if Celsius model was purchased

Measuring voltage: 10v and 100v

INTRODUCTION

The AE-800 Megohmmeter is a dependable and easy to use audit kit for conductive and dissipative

surfaces. This meter is designed to be used in all facets of material production including engineering,

maintenance, quality control, incoming inspection, manufacturing, research, or sales departments for

testing of anti-static mats, floor finishes, paints, wrist straps, smocks, foot wear, bags and containers.

When using the built-in electrodes, the meter’s test values for surface resistivity are in ohms per square.

When using the external five pound electrodes, the meter’s test values for resistance are in ohms

(although they are displayed in ohms/sq).

DECADE SCALE

103 = 1 kilohm

104 = 10 kilohms

105 = 100 kilohms

106 = 1 meg ohm

107 = 10 meg ohms

108 = 100 meg ohms

109 = 1000 meg ohms

1010 = 10,000 meg ohms

1011 = 100,000 meg ohms

1012 = 1,000,000 meg ohms

The test value is indicated on the LCD display. Unlike meters with LEDS that indicate only the decade

the measured value falls within, the AE-800 will show the actual value.

27 ohms (2.7x107) is displayed as 2.7 e07 ohms/sq

TEST VOLTAGE

The test voltage ranges are 10v and 100v. According to ESDA standards S4.1, S7.1, and S11.11 one

should choose 10v for conductive surfaces less than 106 and 100v for materials 106 or greater. If the

meter cannot apply the correct voltage automatically, it will advise you to change to the proper setting

manually. Use the switch in front of the meter to change voltage setting.

As defined by the ESD Association, values indicate the following:

Voltage Range Definition

10 volt < 106 ohms per square Conductive

100 volt 106-1011 ohms per square Dissipative

100 volt 1012> ohms per square Insulative

A NOTE ABOUT VOLTAGE

In previous years, people desiring to measure resistivity or resistance followed the ASTM D264, ASTM

991, NFPA 56A or NFPA99 test standards. These procedures required people to test at either 500 or

1000 volts. This caused concern regarding safety to the person doing the tests. The ESDA standardized

the test procedures so that lower volts could be used at specific ranges.

The AE-800 meter uses a 9 volt battery. Some meters with 9 volts batteries do not give the accuracy that

you need to perform the tests especially at values higher than 107. The AE-800 is built with a transformer

that converts the 9 volt charge from the battery to 10 volts or 100 volts (whichever value is selected). The

meter applies a constant charge over the complete voltage range. Accuracy is depends on applied

voltage, temperature, and humidity.

TEMPERATURE AND HUMIDITY

The humidity and temperature affect the electrical properties of the material being tested. The

combination of low humidity and low temperature will give the highest electrical resistance results or

slowest dissipation times. At high humidity a thin layer of water is condensed or absorbed on or in the

material being tested. This is true of hydroscopic additives that are added to a material to increase the

electrical conductivity. These additives will allow moisture to be absorbable in the materials they are

added to.

At elevated temperatures the mobility of free electrons is increased thereby increasing the materials

conductivity. This is especially true for carbon black, metallic oxides, metals, and other materials added

to a material. When the material is at a lower temperature, built in stresses occur which might increase

the resistance due to increased distance between the conductive additives. Thus, humidity and

temperature must be known.

RECORDING DATA

ANSI/ESD Association and European CECC recognize the environmental effects to test measurements

and specify in their standards that they measured and recorded. It is possible to test or manufacture a

material at high humidity and pass all the test specifications, but when the customer receives the material

and uses it at a lower humidity or temperature the material fails to pass the specifications. This can

cause rejects and loss of product.

Both ESD S4.1 ESD Protective Worksurface section 6.2.4 and ESD S7.1-1994 Resistive

Characterization of Materials Floor Materials sections 5.2.4 and 5.3.3 require reporting of temperature

and humidity at the time of testing. ANSI/EOS/ESD-S11.11-1993 Surface resistance measurement of

Static Dissipative Planar Materials section 11.0 B states, “report the conditioning period, relative humidity.

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เครื่องวัดไฟฟ้าสถิตย์ AE-800

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คำค้น: ARMEKA AE-800, ESD Meter, ESD Tester, ESD, Checker, เครื่องมือวัดไฟฟ้าสถิตย์, ทดสอบไฟฟ้าสถิต, เครื่องตรวจไฟฟ้าสถิต, เครื่องวัดไฟฟ้าสถิต, Surface resistance meter

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