Ground Zero ZeroStat MTR-1000 Bedienungsanleitung

Description:

Test Procedures:

The ZeroStat MTR-1000 Resistance-Resistivity-Humidity-Temperature

Test kit is an easy to operate, compact, lightweight, portable meter

designed to measure temperature, humidity, and electrical

resistance/resistivity. Using both internal and external test probes, the

meter will measure resistivity, resistance between two points, and

resistance to ground according to EOS/ESD Association Standards, -

S4.1, S6.1, S7.1, S11.11, and European Standard CECC-EN 1000/15.

The ZeroStat MTR-1000 is designed and

manufactured in the USA to allow

accurate measurements for engineers,

designers, quality control departments,

incoming inspectors and

sales/manufacturing personnel.

Industries where the meter can be

applicable include electronics, defense,

maintenance, medical, photographic,

printing, and other industries where

accurate temperatures, humidity, and

resistance measurements are required.

Specific industries which require accurate

measurements will dictate the correct test

procedures. The procedure outlined in

the Product Test Bulletin is specifically

used in the electronics industry where the

EOS/ESD and CECC procedures

predominate. It is recommended that

other industry procedures may be more

appropriate for your industry. These may

include MIL-HDBK-263, EIA-1S-5-A, ASTM D-257, and ASTM F-150. Failure

to measure relative humidity and temperature at the time of testing is in

non-compliance with ANSI/ESD-S4.1, S7.1. and S11.11

All materials must be tested on an insulated surface to avoid misleading

measurements. It is possible to measure down through the surface and

not along the surface. This is especially true with non-homogeneous or

multilayer materials. It is possible to actually measure down through the

dissipative surface layer and along the inner conductive surface and back

up through the dissipative layer. This is why it is not technically correct to

include a surface measurement value for two layer materials. Always

measure material thickness when measuring electrical properties because

thickness, temperature, and relative humidity can and will affect the

resistance/resistivity readings.

Meter Test Kit Contents:

CAUTION:

1 ZeroStat MTR-1000 Resistance-Resistivity-

Humidity-Temperature Meter

1 Blow Molded, Foam-Lined Travel Case

1 Concentric Ring Probe (optional)

2 5lb, 2.5 inch Diameter Test Probes.

2 Coil Cord 6 foot Test Grounding Leads

1 Grounding Clip

1 9 volt Battery

1 Product Instruction Bulletin

1 AC Power Adapter

1 NIST Certificate of Calibration

As with all high quality test equipment proper storage and use

of the ZeroStat MTR-1000 is required.

Because the AC power adapter will charge the battery, ONLY

USE a rechargeable battery when operating the AC adapter

with this meter.

Figure 1. -

ZeroStat MTR-1000

Megohmmeter

Ground Zero Electrostatics

MTR-1000 Megaohmmeter

4916 26 Street West, Suite 100, Bradenton, Florida 34207

877- (463-1376), 941-751-7581 1-941-751-7586

[email protected]

Toll Free GND-ZERO Direct Phone Fax

Http://www.gndzero.com

ZeroStat MTR-1000 Megohmmeter

Digital Resistivity/Temperature/Humidity Meter

Concentric Ring

Resistivity End

One Probe Measures

Both Resistivity

and Resistance

Resistance

End

4916 26 Street West, Suite 100, Bradenton, Florida 34207

877- (463-1376), 941-751-7581 1-941-751-7586

[email protected]

Toll Free GND-ZERO Direct Phone Fax

Http://www.gndzero.com

Ground Zero Electrostatics

MTR-1000 Megaohmmeter

Figure 2 - Features of the ZeroStat MTR-1000

A. Test Button - The

round black button will

turn on the power. When

depressed and held

down with reasonable

force the

resistivity/resistance,

humidity, and

temperature values are

displayed on the screen

for approximately 45

seconds. At the

completion of the test

the power will be turned

off automatically.

B. Selector Switch -

The switch selects the

desired applied test

voltage of either 10 or

100 volts.

At 10 volts the resistivity range is 1x10 - 9x10 ohms/sq. At 100 volts the

612

resistivity range is 1x10 - 1x10 ohms/sq.

If the battery is too low to give accurate readings the LCD will display "Low

Battery".

If the resistivity is below 10 ohms/sq., the LCD will display "Less than 1K".

If the reading is over 10 ohms/sq., the LCD will display "More than 2e12".

If the reading is over 10 ohms/sq. the LCD will display "Change to 100

volts" if the meter is set on 10 volts. If the reading is under 10 ohms/sq.,

the LCD will display "Change to 10 volts" if the meter is set on 100 volts.

C. External Test Jacks - The external probe test jacks on the top of the

meter are 3.5 mm monaural. For safety, banana plugs will not fit into

these jacks. When the plugs are inserted into the jacks the parallel test

probes on the bottom of the meter are deactivated.

D. AC Power Adapter - This plug allows the meter to be used with a

center positive 9 - 12 volt 200 mA power adapter. Using the incorrect

power adapter may cause serious damage to the instrument.

E. Ground Jack - Because of the possibility of 60 cycle electrical noise

the enclosed ground cord is recommended when the power adapter is

used. This jack is located on the top of the meter. Insert the plug into

the meter jack and attach the other end to the earth ground of the

building.

F. Battery Compartment - This compartment houses a supplied

9 volt battery which must be installed prior to use.

G. Parallel Test Probes- These probes are made from a highly

conductive, low durometer elastomer. Care should be taken to

avoid harsh solvents and extreme abrasion. Occasional cleaning

with a mild soap and water solution will extend the life of the

probe feet. If damage does occur, these probes are replaceable

for a nominal charge. These probes are used to test electrical

surface resistivity in ohms/square.

H. Case The meter case is injection molded from a high impact ABS

polymer. Simple cleaning with a mild soap and water solution will remove

any dirt or debris.

Prior to testing, ensure that surfaces to be tested are clean and free of

contaminants.

Parallel Probe Resistivity Method

The parallel resistivity probe method, complies with ASTM D-257. It is

used to give fast electrical resistivity measurements on flat homogeneous

materials. It may be used on multilayered materials, but this should be

noted along with the temperature and humidity values on the data report.

A. Place the meter on the desired surface to be tested.

B. Move switch to desired test voltage position, either 10 or 100

volts.

C. Press and hold down the test button. After the meter has had

time to measure the resistivity, humidity, and temperature these

values will be displayed on the LCD screen. This will happen

in approximately 15 seconds.

The resistivity reading will be in ohms/square, temperature in degrees,

and relative humidity in percent.

The meter will keep updating the display while the button is held down

and will continue to display the last test reading for approximately 45

seconds after the button is released.

Insert both coil cords using the

monaural plugs into the 3.5 mm

meter jacks. Attach the banana plug

coil cord terminations to the

concentric ring probe. Place the

probe on the surface to be tested.

Press the test button and wait 15

seconds. The correct temperature

and humidity will be displayed on

the LCD screen. The resistivity value

displayed MUST be multiplied by a

factor of ten to achieve the actual

test value. These values will read in

ohms/square, e.g., 3.5 x 10

ohms/square (displayed value).

Actual resistivity value will be 3.5 x

10 ohms/square.

OPERATION

SURFACE RESISTIVITY

Concentric Ring Probe Resistivity

Method

FEATURES

Ground Zero Electrostatics

MTR-1000 Megaohmmeter

4916 26 Street West, Suite 100, Bradenton, Florida 34207

877- (463-1376), 941-751-7581 1-941-751-7586

[email protected]

Toll Free GND-ZERO Direct Phone Fax

Http://www.gndzero.com

Surface Resistance Measurements (RTT)

Surface-To-Ground Resistance

Measurement (RTG)

Calibration & Maintenance

This procedure which complies with EOS/ESD-S4.1 measures resistance

between two points independent of a groundable point. Procedures vary

regarding sample preparation, probe preparation, and spacing of the 5

pound probes. Select and read the correct test procedure for the desired

measurements.

A. Connect the monaural plug ends of the test leads into the 3.5 mm jacks of

the meter. Connect the banana plugs of the test coil cords into the 2.5 inch

disc ends of both 5 pound probes.

B. Place both probes on the material according to test procedures.

C. Move switch to desired test voltage position, either 10 or 100v.

D. Press and hold the test button until power is applied to the meter and a

value is displayed. Keep the button depressed with sufficient force until the

electrical resistance, relative humidity, and temperature readings are

displayed on the meter screen.

This procedure measures the surface resistance between a ground point on

the material surface and specific positions on the material being tested. This

procedure complies with the EOS/ESD-S4.1 standard.

A. Meter Set-Up. With both test leads connected to the meter, attach the

alligator clip to one lead and the other to the 2.5" disc end of one 5 pound

probe.

B. Attach the alligator clip to a known ground point. Position the probe on

the surface to be tested in accordance with the desired test procedure.

C. Press the test button until the resistivity, humidity, and temperature test

values are displayed on the LCD screen. These readings will conform to:

EIA, EOS/ESD, ANSI, IEC-93 CECC, and ASTM test procedures. When

performing tests, especially with high resistance materials, be sure the test

lead wires do not touch or overlap and that your hands are not in contact with

the probes or wires during the actual testing of the materials. This will ensure

accurate readings.

The ZeroStat MTR-1000 requires no service or maintenance except for an

occasional cleaning of the rubber on the probes. A mild soap and water

solution will remove dirt or other harmful contaminants from both the rubber

probes and the meter case. Harsher solvents will affect the rubber probes

and therefore should not be used. When the meter is not used for extended

periods of time, remove the battery to prevent damage and/or leakage. The

ZeroStat MTR-1000 is calibrated to NIST traceable standards at the factory.

The calibration is done by using a computer program and 1% resistors. This

newly improved method assures many years of long life and accurate

readings. Attaching 1% resistors to the probes or test leads will verify this

accuracy.

Figure 4 - ZeroStat MTR-1000 Point-to-Point Test

Figure 5 - ZeroStat MTR-1000 Point-to-Ground Test

Figure 6 - ZeroStat CB-9900 Calibration Box

Resistivity Test Ranges

Power - Battery Supply

Current Limit:

1 x 10 - 9 x 10 ohms at 10 volts.

612

1x10 - 1 x 10 ohms at 100 volts.

A 9 volt battery is supplied. If a rechargeable

battery is used, the recharging can be done

inside the meter.

The 12 volt power supply is both an adapter and

a recharging device. With a 9 volt alkaline

battery the expected life is approximately 30

hours or 5,000 twenty second measurements.

Using an adapter not designed for this meter

may cause serious damage negating the

warranty on the meter. Only a 12 volt DC, center

positive 200 mA adapter is recommended.

A low battery indicator will alert the user to

replace a weak battery.

If a weak battery is not replaced the meter may

continue to give test readings, but these

readings should not be considered accurate.

1 milliamp DC current for 10 volts.

0.1 milliamp DC current for 100 volts.

Accuracy:

Zero:

Operating Conditions:

Display:

Meter Weight:

Dimensions:

10 - 10 ohms +/- 5%

9 10

10 - 10 ohms +/- 9%

11 12

10 - 10 ohms +/- 25%

Automatic zeroing

OOOO

32 F - 100 F (O - 38 C)

Two line, thirty two .20" character alpha

numeric. LCD displays all test results

simultaneously.

10.2 oz. (289 mg) Meter and battery only.

12 lbs. (5.476 kg) including meter, adapter,

probes, leads, and case.

7.50 inch (19.05 cm) L. x 4.00 inch (10.16 cm) W.

x 1.50 inch (3.81 cm) H.

Probes:

Power Switch:

Two 2.87 inch (7.2 cm) long,

parallel, conductive rubber re

placeable probes on the bottom of the meter

case. They conform to ASTM, ANSI and CECC

standards.

Two 5 pound (2.27 kg), 2.5 inch (6.4 cm)

diameter, conductive rubber probes.

One 5 pound concentric ring probe conforming

to EOS/ESD, ANSI and CECC standards.

(optional)

Enclosed with these probes are two 6 foot (183

cm) coil cord test leads.

Momentary on, press button.

Warranty Exclusion:

Limit of Warranty:

The foregoing express warranty is made in lieu of other product warranties express and implied, including

merchantability and fitness for a particular purpose which are specifically on indirectly disclaimed.

The express warranty will not apply to defects or damage due to neglect, misuse, accidents, alterations,

operator error, failure to properly maintain, follow instruction, or failure to clean or repair products.

In no event will Ground Zero Electrostatics, Inc. or seller be responsible or liable for special, incidental or

consequential losses or damages, whether based on tort, contract, or the use of, or inability to use, the product.

Before using the product users shall determine the suitability of the product for their intended use. The users

assume all risk and liability whatsoever in connection therewith.

Fulfillment of Ground Zero Electrostatics, Inc.'s warranty obligations will be the customer's exclusive remedy

and Ground Zero Electrostatics, Inc, and seller's limit of liability for any breach of warranty or otherwise

Any questions regarding these procedures or other questions should be directed to our engineering

staff or customer service representatives by calling 1-877-GND-ZERO (463-9376). Ground Zero

Electrostatics, Inc. Cedar Village Executive Offices, 4916 26th Street West, Suite 100, Bradenton,

Florida 34207

Ground Zero Electrostatics

MTR-1000 Megaohmmeter

4916 26 Street West, Suite 100, Bradenton, Florida 34207

877- (463-1376), 941-751-7581 1-941-751-7586

[email protected]

Toll Free GND-ZERO Direct Phone Fax

Http://www.gndzero.com

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