Ryobi RP4020 Manuel d'utilisateur télécharger pdf (Page 10)

10 – English

OPERATION

Range Introduction Remark

The approximate forward volt-

age drop of the diode will be

displayed.

If the voltage drop is more than

2.0V, the display shows the over-

range indicator "OL".

Open Circuit

Voltage:

about 2.4V

Short Circuit

Current:

< 0.6mA

Overload Protection: 600V DC/AC rms

CONTINUITY TEST

Range Introduction Remark

The built-in buzzer will sound if

the resistance is less than about

20Ω.

The buzzer will not sound if the

resistance is more than 150Ω.

Open Circuit

Voltage:

about 0.45V

Overload Protection: 600V DC/AC rms

NOTE: Accuracy does not include error caused by the

capacitance of test lead and the meter. To reduce the error,

use Relative mode.

For range 100μF, wait about 30 seconds for reading to

settle.

DIODE TEST

WARNING:

Do not take readings unless the battery door is securely

closed.

USING RELATIVE MODE

See Figure 4, page 14.

Selecting Relative Mode stores the present reading as a

reference for subsequent measurements and sets the dis-

play to zero (0).

 To enter Relative Mode, press the REL▵ button. The

symbol "" will appear on the LCD display.

 When you perform a new measurement, the display

shows the difference between the first (reference) and

the new measurement.

 Press REL▵ again to exit Relative mode and clear the

symbol.

NOTE: For capacitance measurements, the meter

remains in Autorange mode when you select Relative

mode. The actual capacitance to be measured must not

exceed 100μF even if you use Relative mode.

For other measurements which have both Autorange mode

and Manual Range mode, the meter changes to Manual

Range mode when you select Relative mode.

The actual value of the object under test must not exceed the

full-range reading of the selected range when you use Relative

mode. Use a higher measurement range if necessary.

MANUAL RANGING AND AUTORANGING

See Figure 4, page 14.

The meter defaults to Autorange mode in measurement

functions which have both Autorange mode and Manual

range mode. When the meter is in Autorange mode, AUTO

is displayed.

 Press the RANGE button to enter the manual range mode.

The AUTO symbol will disappear.

 Each press of the RANGE button increases the range.

When the highest range is reached, the meter wraps to

the lowest range.

 To exit the manual range mode, press and hold down the

RANGE button for about 2 seconds. The meter will return

to Autorange mode and the symbol AUTO will appear.

NOTE: The RANGE button is disabled in diode, continuity

and capacitance measurement functions.

DATA HOLD MODE

See Figure 4, page 14.

 Press the HOLD button to hold the present reading on

the display. The symbol HOLD will appear on the display

as an indicator.

 Press the button again to exit Data Hold mode. The sym-

bol HOLD will disappear.

BUILT-IN BUZZER

 When you press a button, the built-in buzzer will sound

a beep if the press is effective.

 The buzzer will beep several times about 1 minute before

the meter turns off automatically, and give 1 long beep

before the meter turns off automatically.

Range Resolution Accuracy

40nF 0.01nF ±(4%+20)

400nF 0.1nF ±(3%+5)

4μF 0.001μF

±(4%+5)

40μF 0.01μF

100μF 0.1μF ±(8%+5)

CAPACITANCE

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 39 40

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Ryobi RP4020 Manuel d'utilisateur Page 10

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