BK Precision BK Precision 2703C Manual

OPERATING INSTRUCTIONS

MODEL 2703C

DIGITAL MULTIMETER

2703C

VV

A

BATT 1.5V

mA

COM V

10A

SAFETY INFORMATION

The following safety informationmustbe observed to ensure maximum personal
safetyduring the operation at this meter:

Use the meter only as specifiedinthismanualor the protection provided by the
metermightbe impaired.

Test the meter on a knownvoltage before using it to determine if hazardous
voltage is present.

Do not use the meterif the meter or test leads look damaged,or if you suspect
that the meter is not operatingproperly.

Neverground yourself when taking electrical measurements. Do nottouch
exposed metal pipes, outlets,fixtures, etc., which might be at ground potential.
Keepyourbodyisolated from ground by usingdryclothing, rubber shoes, rubber

mats,or any approved insulating material.
Turnoff power to the circuitundertestbefore cutting, unsoldering, or breaking

the circuit.Smallamounts of current can be dangerous.
Use cautionwhenworking above 60V dc or 30V ac rms. Such voltagesposea

shockhazard.
When Usingthe probes,keepyourfingers behind the finger guards on the

probes.
Measuring voltage whichexceeds the limits ofthe multimeter may damage the

meterand exposetheoperator to a shock hazard.Always recognize the meter
voltage limits as stated on the frontof themeter.

SPECIFICATIONS

Display: 3½ digit liquidcrystal display (LCD) with a maximum readingof 1999.
Polarity:Automatic, positiveimplied, negative polarityindication.
Overrange: (OL) or (-OL)is displayed.
Zero:Automatic.
Lowbattery indication: The

belowtheoperating level.
Measurement rate: 2.5 times per second,nominal.
Auto poweroff:Approx.25 minutes.

Operating environment: 0℃to50℃at < 70% relativehumidity.
Storage temperature: -20℃to60℃,0 to 80%relative humidity.
Accuracy: Statedaccuracy 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: Single standard 9-volt battery, NEDA1604, JIS006P,IEC 6F22.
Battery life:200hourstypical with carbon-zinc.
Dimensions: 165mm (H) x78mm (W)x42.5mm (D).

Weight: Approx. 10.0 oz.(285g)including holster.
Accessories: One set test leads,one sparefuse,9V battery(installed),and

Operating Instructions.

is displayed whenthebattery voltage drops

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DC VOLTS

Ranges: 2V, 20V, 200V, 1000V
Resolution: 1mV
Accuracy: ± ( 1.2% rdg + 1 dgt)

Inputimpedance: 10MΩ
Overload protection: 1000VDCor750VAC rms

AC VOLTS (50Hz- 500Hz)

Ranges:200V, 750V
Resolution: 0.1V
Accuracy: ± ( 2.0% rdg + 5dgts)on 200V range

Inputimpedance: 10MΩ
Overload protection: 1000VDCor750VAC rms

±( 2.0% rdg+ 10dgts) on 750Vrange

DC CURRENT

Ranges: 2mA,20mA,200mA, 10A
Resolution: 1uA

Accuracy: ±(1.5%rdg+ 1 dgts)on 2mAto 200mAranges
Inputprotection: 0.5A/500V fastblowceramic fuse onmAinput

10Ainput:10Afor 60 seconds maximum followedby a

±(3.0%rdg+ 3 dgts)on10Arange
10A/600V fast blowceramic fuse on mAinput

10 minutescooling period.

RESISTANCE

Ranges: 200Ω, 2k, 20k,200k, 20MΩ
Resolution: 0.1Ω
Accuracy:

±(1.5%rdg+ 4 dgts)on200Ωto 200kΩranges
±(3.0%rdg+ 5 dgts)on20MΩrange

Open circuitvolts: 0.3Vdctypical, (3.0Vdc on 200Ωrange)
Overload protection: 500VDCorACrms

CONTINUITY

Audible indication: Lessthan100Ω
Response time: 100ms
Overload protection: 500VDCorACrms

DIODE TEST

Test current: Approx. 1.0mA
Accuracy: ±(3.0% rdg + 3dgts)

Open circuitvolts: 3.0Vdctypical
Overload protection: 500VDCorACrms

BATTERY TEST

Ranges: 1.5V, 9V
Resolution: 1mV, 10mV
Accuracy: ±(3.5%rdg+ 2 dgts)
Loadedcurrent:150mAtypicalfor1.5Vrange, 5mA

typical for9V range

Overload protection: 500V DC or AC rms on9V range,

0.5A/500V fast blow ceramic fuseon 1.5V range.

OPERATION

Beforetaking any measurements, read the Safety Information Section.Always
examine theinstrument for damage, contamination(excessive dirt, grease,etc.)

and defects. Examine the testleads forcracked orfrayed insulation. If any
abnormal conditionsexistdonotattempt to make anymeasurements.

Voltage Measurements

1.Connect the red testleadto ”VΩ”jack andthe blacktest lead to the ”COM”
jack.

2.Setthe Function/Rangeswitchtothe desiredvoltage type (AC or DC) and
range. If magnitude of voltage is not known,set switchto the highest range
and reduceuntila satisfactory reading is obtained.

3.Connect the test leadsto the deviceor circuitbeingmeasured.

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

CurrentMeasurements

1.Connect the red testleadto the (uA, mA or 10A)jackandthe blacktest lead to
the "COM"jack.

2.Setthe Function/Rangeswitchtothe DC or AC ranges.

3.Remove power from the circuit under test and openthenormalcircuit path
wherethemeasurementis to betaken. Connect the meter in series withthe

circuit.

4.Apply power andreadthevaluefrom the display.

Resistance and Continuity Measurements

1.Setthe Function/Rangeswitchtothe desiredresistance rangeor continuity
position.

2.Remove power fromthe equipment under test.

3.Connect the red testleadto the “ VΩ” jack and the black test lead to
the ”COM” jack.

4.Touch the probes to the test points.In ohms,the valueindicated in thedisplay
is the measuredvalueof resistance. In continuity test, the beepersounds
continuously, if the resistance is less than 100Ω.

Diode Tests

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

2.Setthe Function/Rangeswitchtothe “ “ position.

3.Turn off power to thecircuitunder test.External voltageacrossthe

components causes invalidreadings.

4.Touch probes to the diode. A forward-voltage drop is about0.6V (typicalfora
silicondiode).

5.Reverse probes. If the diode is good, “OL”is displayed. If the diodeis shorted,
“000” or anothernumber is displayed.

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

Battery Test

1.Connect the red test leadto the (mA/BATT 1.5V) jack andthe blacktestleadto
the "COM"jack.

2.Set the Function/Rangeswitchtothe desired1.5Vbattery test range.

3.Connect the test leads to the1.5Vdc battery under test. Normally, a good

1.5Vdcbattery will read above 1.25Vdc. Consultthebattery manufacturer for
complete battery specifications to determineactualbattery life remainingand

condition of battery.

MAINTENANCE

Removetestleadsbefore changing batteryor fuseor performing
anyservicing.

WARNING

Battery Replacement

Poweris supplied by a 9 voltbattery.(NEDA1604,IEC6F22). The
on the LCD display when replacement is needed. Toreplace the battery, remove
the three screws from the back of themeterandlift offthe front case.Remove

the batteryfromcasebottom.

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176

FAX [phone] - TestEquipmentDepot.com

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appears

Fuse Replacement

If no current measurements are possible.checkfora blownoverload protection
fuse.For accessto fuses, removethethreescrewsfromthe back of the meter

and lift off the front case. ReplaceF1 only with the originaltype0.5A/500V, fast
actingceramic fuse, 6.35x32mm.
Replace F2 only withthe originaltype10A/600V, fastactingceramic fuse,

6.35x25.4mm.

Cleaning

Wipe the case with a dampclothandmild detergent. Do notuse abrosives 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 Indooruse.

CATII: Isformeasurements performedon circuitsdirectly connected to the

low-voltage installation.

CAT III: Isformeasurements performedin thebuilding installation.

EMC:Conforms toEN61326.
The symbolsusedon this instrument are:

Caution, refer to accompanyingdocuments

Equipment protectedthroughout by Double insulation (Class II)
Alternating current

Directcurrent
Ground

99 Washington Street
Melrose, MA 02176

Phone [phone]
Toll Free 1-800-517-8431

Visit us at www.TestEquipmentDepot.com

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