Bk-precision 2709B - Manual Manuel d'utilisateur télécharger pdf

OPERATING INSTRUCTIONS

MODEL 2709B

DIGITAL MULTIMETER

10A

COM

A mA

VHz

2709B

SAFETY INFORMATION

The following safety information must be observed to ensure maximum personal

safety during the operation at this meter:

Use themeter only as specified in this manual or the protection provided by the

meter might be impaired.

Test the meter on a known voltage before using it to determine if hazardous

voltage is present.

Do not use the meter if the meter or test leads look damaged, or if you suspect

that the meter is not operating properly.

Never ground yourself when taking electrical measurements. Do not touch

exposed metal pipes, outlets, fixtures, etc., which might be at ground potential.

Keep your body isolated from ground by using dry clothing, rubber shoes, rubber

mats, or any approved insulating material.

Turn off power to the circuit under test before cutting, unsoldering, or breaking

the circuit. Small amounts of current can be dangerous.

Use caution when working above 60V dc or 30V ac rms. Such voltages pose a

shock hazard.

When using the probes, keep your fingers behind the finger guards on the

probes.

Measuring voltage which exceeds the limits of the multimeter may damage the

meter and expose the operator to a shock hazard.Always recognize the meter

voltage limits as stated on the front of the meter.

SPECIFICATIONS

Display: 3¾ digit liquid crystal display (LCD) with a maximum reading of 6600.

Polarity: Automatic, positive implied, negative polarity indication.

Overrange: (OL) or (-OL) is displayed.

Zero: Automatic.

Low battery indication: The

" "

is displayed when the battery voltage drops

belowthe operating level.

Measurement rate: 2 times per second, nominal.

Auto power off: Approx. 30minutes.

Operating environment: 0℃ to 50℃ at < 70% relative humidity.

Storage temperature: -20℃ to 60℃, 0 to 80% relative humidity.

Accuracy: Stated accuracy at 23℃ ±5℃, < 75% relative humidity.

Temperature Coefficient: 0.1 x (specified accuracy) per ℃. (℃ to 18℃, 28℃ to

50℃).

Altitude: 6561.7 feet (2000m).

Power: Singlestandard 9-volt battery, NEDA1604, JIS 006P, IEC 6F22.

Battery life: 150 hours typical with carbon-zinc.

Dimensions: 165mm (H) x78mm (W) x42.5mm (D).

Weight: Approx. 10.0oz. (285g) including holster.

Accessories: One set test leads, one spare fuse, 9V battery (installed), and

Operating Instructions.

DC VOLTS

Ranges: 660mV, 6.6V,66V, 660V, 1000V

Resolution: 0.1mV

Accuracy: ±(0. 5 %rdg+2dgts )

Input impedance: 660mV: >100MΩ; 6.6V: 10MΩ; 66V ~ 1000V: 9.1MΩ

Overload protection: 1000VDC or750VAC rms

AC VOLTS(TRUE RMS) (50Hz - 500Hz)

Ranges: 660mV, 6.6V,66V, 660V, 750V

Resolution: 0.1mV

Accuracy: ±(1.5% rdg + 8dgts) 50 ~60Hz on 660mV range

±( 1.5% rdg + 8 dgts)on 6.6V to 660V ranges

±( 2.0% rdg + 8 dgts)on 750V range

Crest factor: ≤3

Input impedance: 660mV: >100MΩ; 6.6V: 10MΩ; 66V ~ 750V:9.1MΩ

Overload protection: 1000VDC or750VAC rms

CURRENT

Ranges: 660uA,6600uA,66mA, 400mA, 10A

Resolution: 0.1uA

DC accuracy:

±( 1.5% rdg + 2 dgts) on 660uAto 400mAranges

±( 3.0% rdg + 3 dgts) on 10Arange

AC accuracy: (TRUE RMS) (50Hz ~ 500Hz)

±( 2.0% rdg + 10dgts) on 660uAto 400mAranges

±( 3.5% rdg + 10dgts) on 10Arange

Crest factor: ≤3

Voltage burden: 0.4V on 660uA, 66mA, 10Aranges

2V on 6600uA, 400mAranges

Input protection: 0.5A/500V fast blow ceramic fuse

10A/600V fast blow ceramic fuse

10AInput: 10Afor 60 seconds maximum followed

by a 10 minute cooling period

RESISTANCE

Ranges: 660Ω, 6.6kΩ, 66kΩ, 660kΩ, 6.6MΩ, 66MΩ

Resolution: 0.1Ω

Accuracy:

±( 1.2% rdg + 5dgts) on 660Ωto 660kΩranges

±( 2.0% rdg + 5dgt) on6.6MΩrange

±( 3.5% rdg + 5 dgt) on 66MΩrange

Open circuit volts: -0.45Vdc (-1.2Vdc on660Ωrange)

Overload protection: 500VDC orAC rms

CAPACITANCE

Ranges: 6.6nF, 66nF, 660nF, 6.6uF, 66uF, 660uF, 6.6mF, 66mF

Resolution: 1PF

Accuracy:

±( 3.0% rdg + 30 dgts) on 6.6nF range

±( 3.0% rdg + 5 dgts) on 66nF to 660uF ranges

±( 5.0% rdg + 20 dgts) on 6.6mF, 66mF ranges

Overload protection: 500VDC orAC rms

FREQUENCY

Ranges: 660Hz, 6.6k, 66k, 660k, 6.6M, 66MHz

Resolution: 0.1Hz

Accuracy: ±(0.1% rdg + 3 dgts)

Sensitivity: 10Hz ~ 6.6MHz: >2.5V rms, 6.6MHz

~ 66MHz: >2.5V rms <5V rms

Minimum pulse width: > 25ns

Duty cycle limits: > 30% and < 70%

Overload protection: 500VDC orAC rms

DIODE TEST

Test current: 1.2mA(approximate)

Accuracy: ±(3.0% rdg + 3 dgts)

Resolution: 1mV

Audible indication: <0.03V

Open circuit volts: 3.5Vdc typical

Overload protection: 500VDC orAC rms

CONTINUITY

Audible indication: Less than 30Ω

Response time: 100ms

Overload protection: 500VDC orAC rms

OPERATION

Before taking any measurements, read the Safety Information Section.Always

examine the instrument for damage, contamination (excessive dirt, grease, etc.)

and defects. Examine the test leads for cracked or frayed insulation. If any

abnormal conditions exist do not attempt to make anymeasurements.

Input Warning Beeper

The meter has a beeper that warns the user when the test lead is in the current

jack while the meter is switched to make a voltage measurement.Another safety

feature to protect the meter and you.

MAX / MIN

The "MAX" displays the maximum value of measurements. The "MIN" displays

the minimum value of measurements. The "MAX/MIN" appears and flashes in

the LCD to display thevalue that is being measured now. After finishing the

measurement, press MAX/MIN button for more than 2 seconds to exit.

Relative Δ

Press (Δ) button to enter the Relative mode. The (Δ) annunciator is displayed,

and residual value on the display is subtracted and stored as a reference value.

In the Relative mode, the value shown on the display is always the difference

between the stored reference value and the present reading. Press (Δ) button

again to exit the relative mode.

Backlight

Press the button to activate the backlight for approximately 60 second.

Manually Selecting Range

The meter also has a manual range mode. In manual range, you select and lock

the meter in a range. To manually select a range:

Press [RANGE]button to hold the selected range. Subsequently pressing the

[RANGE] button will select each range in sequence from the lowest to highest

range. Hold the button for 2 seconds to return to theAutorange Mode.

Voltage Measurements

1.Connect the red test lead to”VΩ”jack and the black test lead to the ”COM”

jack.

2.Set the Function/Range switch to the desired voltage type (AC or DC) and

range. If magnitude of voltage is not known, set switch to the highest range

and reduce until a satisfactory reading is obtained.

3.Connect the test leads to the device or circuit being measured.

4. For dc, a (-) sign is displayed for negative polarity; positive polarity is implied.

Current Measurements

1.Connect the red test lead to the (uA, mA or 10A) jack and the black test lead to

the "COM" jack.

2.Set the Function/Range switch to the DC orAC ranges.

3.Remove power from the circuit under test and open the normal circuit path

where the measurement is to be taken. Connect the meter in series with the

circuit.

4.Apply power and read the value from the display.

Resistance Measurements

1.Set the Function/Range switch to the desired resistance range.

2.Reove power from the equipment under test.

3.Connect the red test lead to the "VΩ" jack andthe black test lead to the "COM"

jack.

4.Connect the test leads to the points of measurements and read the value from

the display.

Diode Tests

1.Connect the red test lead to the “VΩ” jack and the black test lead to

the ”COM” jack.

2.Set the Function/Range switch to the “ “ position.

3.Turn off power to the circuit under test. External voltage across the

components causes invalid readings.

4.Touch probes to the diode.Aforward-voltage drop is about 0.6V (typical for a

silicon diode).

5.Reverse probes. If the diode is good, “OL”is displayed. If the diode is shorted,

“000” or another number is displayed.

6. If the diode is open, “OL” is displayed in both directions.

7.Audible Indication: Less than 0.03V.

Continuity Measurements

1.Set the Function switch to the position.

2.Turn off power to the circuit under test. External Voltage across the

components causes invalid reading.

3.Connect the test leads to the two points at which continuity is to be tested. The

buzzer will sound if the resistance is less than approximately 30Ω.

Capacitance Measurements

1.Set the Function/Range switch to the desired capacitance range.

2.Connect the red test lead to the “VΩ” jack and the black test lead to the

“COM “jack.

3.Touch the probes to the capacitor. Observe polarity when measuring polarized

capacitors.

4.Read the capacitance directly from the display.

5. Discharge the capacitor before taking capacitance measurements.

6.When the capacitor to be tested is connected, if "dISC" symbol indicates on

LCD, it means there is voltage existing in the tested capacitor and need to be

discharged before testing.

7.For maximum accuracy, step to the desired range in manual ranging, then

press the Relative Δ button to zero out test lead capacitance before the

measurement.

Frequency Measurements

1.Set the Function/Range switch to the “Hz” position.

2.Connect the red test lead to the ”VΩ” jack and the black test lead to

the ”COM” jack.

3.Connect the test leads to the point of measurement and read the frequency

from the display.

Auto Power Off

1.Auto power off: approx. 30 minutes.

2.After auto power off, press any button to restart the meter, and the reading of

measurement will be maintained in the display.

Cancellation of Auto Power Off Feature:

Press and hold the (RANGE) button while rotating function switch from off to

anyposition to turn the meter on. The auto power off feature is disabled.

Note “APO” annunciator is missing from the LCD.

MAINTENANCE

WARNING

Remove test leads before changing battery or fuse or

performing any servicing.

Battery Replacement

Power is supplied by a 9 volt battery. (NEDA1604, IEC 6F22). The

" "

appears

on the LCD display when replacement is needed. To replace the battery, remove

the three screws from the back of the meter and lift off the front case. Remove

the battery from case bottom.

Fuse Replacement

If no current measurements are possible. Check for a blown overload protection

fuse. For access to fuses, remove the three screws from the back of the meter

and lift off the front case. Replace F1 only with the original type 0.5A/500V, fast

acting ceramic fuse, 6.35x32mm Replace F2 only with the original type

10A/600V, fast acting ceramic fuse, 6.35x25.4mm.

Cleaning

Wipe the case with a damp cloth and mild detergent. Do not use abrasives or

solvents. Dirt or moisture in the terminals can affect readings.

Safety: Conforms to IEC61010-1 (EN61010-1), CATII 1000V, CATIII 600V, Class

II, Pollution degree 2 Indoor use.

CATII: Is formeasurements performed on circuits directly connected to the

low-voltage installation.

CAT III: Is for measurements performed in the building installation.

EMC: Conforms to EN61326.

The symbols used on this instrument are:

Caution, refer to accompanying documents

Equipment protected throughout by Double insulation (Class II)

Alternating current

Direct current

Ground

1 2 3 4 5

Résumé du contenu

Page 1 - DIGITAL MULTIMETER

OPERATING INSTRUCTIONSMODEL 2709BDIGITAL MULTIMETER10ACOMA mAVHz2709BSAFETY INFORMATIONThe following safety information must be observed to ensure max

Page 2 - MANTENIMIENTO

INSTRUCCIONES DE FUNCIONAMIENTOMODELO 2709BMULTIMETRO DIGITAL10ACOMA mAVHz2709BINFORMACION DE SEGURIDADLa siguiente información relativa a la segurida

Page 3 - Modèle 2709B

Manuel d’utilisationModèle 2709BMultimètre Numérique 6600 points TRMS10ACOMA mAVHz2709BPRESCRIPTIONS DE SECURITELes prescriptions de sécurité ci desso

Page 4 - MODELL 2709B

BEDIENUNGSANLEITUNGDIGITAL-MULTIMETERMODELL 2709B10ACOMA mAVHz2709BSICHERHEITSINFORMATIONENUm ein Maximum an persönlicher Sicherheit beim Betrieb dies

Page 5 - SERVICE INFORMATION

Limited Three-Year Warranty B&K Precision warrants to the original purchaser that its products and the component parts thereof, will be free from

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