Extech Instruments RC100 Manuale utente

User's Guide

R/C SMD Tweezers

Model RC100

www.burntec.com

Introduction

Congratulations on your purchase of the Extech RC100

SMD Tweezers. This device offers rapid and accurate

capacitance and resistance measurements of chip

components. This meter is shipped fully tested and

calibrated and, with proper use, will provide years of

reliable service.

Precautions and Safety measures

When using this meter, the user must observe all normal

safety rules

•Allow a 30 seconds warm-up before use.

•If the meter is used near noise generating

equipment the display may become unstable or

indicate large errors.

•Do not use the meter if it appears damaged.

•Use the meter only as specified in this manual;

otherwise, the protection provided by the meter may

be impaired.

•Do not operate the meter near explosive gas, vapor,

or dust.

•To avoid damages to the instrument, do not exceed

the maximum limits of the input values.

•Caution: Don't use this device if working voltage is

above 50V DC or 36 V AC rms. Such voltages pose

a shock hazard and damage the meter

•When using this meter, keep your fingers away from

the metal of the meter.

•Before changing functions, disconnect the test clip

from the circuit under test.

•Replace the battery when the symbol

appears. With a low battery, the meter might

produce false readings.

Symbols:

Symbols used in this manual and on the meter:

Caution: refer to the instruction manual.

Incorrect use may result in damage to the

device or its components.

Conforms to IEC1010

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Product Description

1 Cathode “-“ input (negative)

2 Anode “+” input (positive)

3 POWER and MODE key

This key is used to power the meter and to select

the measurement function. Press the key for >4

seconds to turn power off.

4 REL key

Press this key once to enter into the Relative mode,

press again to return to the normal mode.

5 LCD display

6 Battery cover (on rear)

LCD Display

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Operation

Resistance

To avoid electrical shock or damage to

the meter, disconnect circuit power and

discharge all high-voltage capacitors

before measuring resistance.

1. Press the MODE key to select the mode.

2. Connect the test tips to the object being tested

and read the measured value on the display.

NOTE:

a. When measuring the high-resistance (> 1MΩ), it

may take a few seconds for the reading to

stabilize, this is normal.

b. When the input is not connected, i.e. an open

circuit, the "OL" (overange) icon will be

displayed.

Capacitance

To avoid electrical shock or damages to

the meter under test, disconnect circuit

power and discharge all high-voltage

capacitors before measuring capacitance.

1. Press the MODE key to select the mode.

2. Connect the test clips to the capacitor being

tested and read measured value on the display.

NOTE:

a. When measuring large valued capacitors

(200uF range), it may take up to 30 seconds for

the reading to stabilize, this is normal.

b. To improve the accuracy of measurements less

than 4nF, subtract the residual capacitance of

the meter and tips by pressing the REL key with

the tips open circuited.

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Diode measurement

To avoid electrical shock or damage to

the meter, disconnect circuit power and

discharge all high-voltage capacitors

before testing diodes.

1. Press the MODE key to select the mode.

2. Connect the + tip to the anode and the - tip to the

cathode of the diode under test.

3. The meter will show the approx. forward voltage

of the diode. If the lead connection is reversed

"OL" displayed.

Specifications

General specifications

MAX. Voltage 50V MAX between terminals and earth

ground

Sample Rate: 3 times/sec for digital data

Display 4000 count (3 3/4 digits) LCD display

Over Range "OL" indication

Low battery indication

Auto power off 15 minutes if there are no key presses

Power source (2) AG13 button cell or equivalent

Pollution degree 2

Altitude < 2000 m

Operating temp 32 to 104°F (0~40 °C)

Operating RH <80% RH, non-condensing

Storage temp 14 to 140°F (-10~60°C)

Storage RH <70% RH, battery removed

Temperature Coefficient 0.5×(specified accuracy) /°C

(<18°C or >28°C)

Dimensions 181(L)×35(W)×20(H) mm

Weight 65g. Approx. (battery included)

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Range specifications

* Accuracy: ±(% of reading + number of digits) at 18°C

to 28°C (64°F to 82°F) with relative humidity to 80%.

Caution: Don't use this device if the working

voltage is above 50V DC or 36 V AC rms.

Resistance

Range Resolution Accuracy

400Ω0.1Ω

4kΩ1Ω

40kΩ10Ω

400kΩ100Ω

4MΩ1kΩ

±(1.2% of rdg +3digits)

40MΩ10kΩ±(2.0% of rdg +5 digits)

Capacitance

Range Resolution Accuracy

4nF 1pF ±（5.0% of rdg +5 digits）

40nF 10pF

400nF 100pF

4µF 1nF ±（3.0% of rdg +5 digits）

40µF 10nF

200µF 100nF ±（3.0% of rdg +5 digits）

Diode Test

Range Description Test Condition

Displays

forward

voltage

drop

Forward DC Current:

approx. 1mA

Reversed DC Voltage:

approx. 1.5V

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Maintenance

General Maintenance

Periodically wipe the case with a damp cloth and mild

detergent. Do not use abrasives or solvents.

Battery replacement

Before replacing the battery, disconnect test

tips from any circuit under test

Use the following procedure:

When the battery voltage drop below proper operation

range the symbol will appear on the LCD display

and the battery need to be replaced.

1. Slide the battery cover in the direction of the

arrow to open the battery cover.

2. Replace the battery with two new 1.5V batteries

(AG13).

3. Replace the battery cover.

Warranty

EXTECH INSTRUMENTS CORPORATION warrants the basic

instrument tobe free of defects in parts and workmanship for one year

from date of shipment (a six month limited warranty applies on

sensors andcables). If it should become necessary to returnthe

instrument forservice during or beyond the warranty period,contact

the Customer Service Department at (781) 890-7440 EXTENSION

210 for authorization or visit www.extech.com for more information. A

Return Authorization (RA) number must be issued before any

product is returned to Extech. The sender is responsible for

shippingcharges, freight, insurance and proper packaging toprevent

damage in transit. This warranty does not apply to defects resulting

from action of the user such as misuse, improper wiring, operation

outside of specification, improper maintenance or repair, or

unauthorized modification. Extech specifically disclaims any implied

warranties or merchantabilityor fitness for a specific purpose and will

not be liable for any direct,indirect, incidental or consequential

damages. Extech's total liability islimited torepair or replacement of

the product. The warranty set forth above is inclusiveand no other

warranty, whether written or oral, is expressed or implied.

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Calibration and Repair Services

Extech offers repair and calibration services for the

products we sell. Extech also provides NIST certification

for most products. Call the Customer Service Department

for information on calibration services available for this

product. Extech recommends that annual calibrations be

performed to verify meter performance and accuracy.

RC100 V1.0 4/07



Support line (781) 890-7440

Technical Support: Ext. 200; E-mail: support@extech.com

Repair & Returns: Ext. 210; E-mail: r[email protected]m

Product specifications subject to change

without notice

For the latestversion of this User’s Guide and other up-to-

the-minute product information, visit our website:

www.extech.com

Extech Instruments Corporation, 285 Bear Hill Rd., Waltham,

MA02451

www.burntec.com

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