2707B B&K Precision, 2707B Datasheet
2707B
Manufacturer Part Number
2707B
Description
DMM MANL RANGING TRUE RMS TOOL
Manufacturer
B&K Precision
Series
Tool Kit®r
Type
Digital (DMM)r
Specifications of 2707B
Includes
Battery, Hanger, Test Leads
Style
Handheld
Display Digits
3.5
Display Type
LCD
Display Count
2000
Function
Voltage, Current, Resistance, Capacitance, Frequency
Functions, Extra
Continuity, Diode Test, Logic, Transistor Gain
Features
Hold, MIN/MAX
Ranging
Manual
Response
True RMS
Lead Free Status / RoHS Status
Vendor undefined / Vendor undefined
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Vendor undefined / Vendor undefined
Other names
BK2707B
SAFETY INFORMATION
The following safety information must be observed to ensure maximum personal
safety during the operation at this meter:
Use the meter 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.
OPERATING INSTRUCTIONS
DIGITAL MULTIMETER
A
10A
mA
F
V
MODEL 2707B
2707B
COM
Hz
V
V
A
SPECIFICATIONS
Display: 3½ digit liquid crystal display (LCD) with a maximum reading of 1999.
Polarity: Automatic, positive implied, negative polarity indication.
Overrange: (OL) or (-OL) is displayed.
Zero: Automatic.
Low battery indication: The "
Measurement rate: 2.5 times per second, nominal.
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
Altitude: 6561.7 feet (2000m).
Power: Single standard 9-volt battery, NEDA 1604, JIS 006P, IEC 6F22.
Battery life: 150 hours typical 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 spare fuse, 9V battery (installed), and
DC VOLTS
Ranges: 200mV, 2V, 20V, 200V, 1000V
Resolution: 0.1mV
Accuracy: ± ( 0.8% rdg + 1 dgt)
Input impedance: 10MΩ
Overload protection: 1000VDC or 750VAC rms
600VDC/AC rms 15 seconds on 200mV range
AC VOLTS
Ranges: 200mV, 2V, 20V, 200V, 750V
Resolution: 0.1mV
Accuracy:
Crest factor: ≤ 3
Input impedance: 10MΩ
Overload protection: 1000VDC or 750VAC rms
CURRENT
DC Ranges: 20mA, 200mA, 10A
DC Resolution: 10uA
DC Accuracy:
DC Input protection: 0.5A/500V fast blow ceramic fuse
AC Ranges: 20mA, 200mA, 10A (TRUE RMS) (50Hz ~ 500Hz)
AC Resolution: 10uA
AC Accuracy:
DC Input protection: 0.5A/500V fast blow ceramic fuse
10A AC & DC Input: 10A for 60 seconds maximum followed
RESISTANCE
Ranges: 200Ω , 2kΩ , 200kΩ , 20MΩ , 2000MΩ
Resolution: 0.1Ω
Accuracy:
Open circuit volts: 0.3Vdc typical, (3.0Vdc on 200Ω ,2000MΩranges)
Overload protection: 500VDC or AC rms
CONTINUITY
Audible indication: Less than 100Ω
Response time: 100ms
Overload protection: 500VDC or AC rms
DIODE TEST
Test current:
Accuracy:
Open circuit volts: 3.0Vdc typical
Overload protection: 500VDC or AC rms
CAPACITANCE
Ranges: 2nF, 20nF, 200nF, 2uF, 20uF
Resolution: 1PF
Accuracy: ±(4% rdg + 10 dgts)
below the operating level.
50℃).
Operating Instructions.
± ( 1.5% rdg + 8 dgts) on 200mV to 20V ranges
± ( 2.0% rdg + 8 dgts) on 200V, 750V ranges
600VDC/AC rms 15 seconds on 200mV range
± ( 1.0% rdg + 1 dgt) on 20mA to 200mA ranges
± ( 3.0% rdg + 3 dgts) on 10A range
± ( 2.0% rdg + 8dgts) on 20mA to 200mA ranges
± ( 3.5% rdg + 8 dgts) on 10A range
10A/600V fast blow ceramic fuse
by a 10 minute cooling period
± ( 1.0% rdg + 4 dgts) on 200Ωto 200kΩranges
± ( 2.0% rdg + 4 dgts) on 20MΩrange
± [ (5.0% rdg - 10 dgts) +10dgts] on 2000MΩrange
±(1.5% rdg + 3dgts)
(TRUE RMS) (50Hz - 500Hz)
Approx. 1.0mA
10A/600V fast blow ceramic fuse
" is displayed when the battery voltage drops
Discharge capacitor before connecting
TRANSISTOR hFE
Range: 0 ~ 1000
Base current: 10uAdc approx. (Vdc = 3.0Vdc)
FREQUENCY
Ranges: 2kHz, 20kHz, 200kHz, 2MHz, 20MHz
Resolution: 1Hz
Accuracy: ±(0.1% rdg + 3 dgts)
Sensitivity: 2.0V RMS min
Minimum pluse width: 25ns
Duty cycle limits: >30% and <70%
Overload protection: 500VDC or AC rms
LOGIC TEST
Threshold: Logic Hi (2.8 ±0.8V)
Indication: 40 msec beep at logic low
Overload protection: 500VDC or AC rms
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 any measurements.
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.
Data Hold
Press [HOLD] button to lock the reading on display, and release it by pressing
the button again
MAX/MIN
Press MAX/MIN once begin recording MIN and MAX.
Press MAX/MIN to select current reading MIN or MAX.
Hold down for 2 seconds to exit MAX/MIN function.
Voltage Measurements
1.Connect the red test lead to ”VΩ ” jack and the black test lead to the ”COM”
2.Set the Function/Range switch to the desired voltage type (AC or DC) and
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 ( mA or 10A) jack and the black test lead to the
2.Set the Function/Range switch to the DC or AC ranges.
3.Remove power from the circuit under test and open the normal circuit path
4.Apply power and read the value from the display.
Resistance and Continuity Measurements
1.Set the Function/Range switch to the desired resistance range or continuity
2.Remove power from the equipment under test.
3.Connect the red test lead to the “ VΩ” jack and the black test lead to
4.Touch the probes to the test points. In ohms, the value indicated in the display
Note when using 2000MΩ Range
The 2000MΩrange has a fixed 10-count offset in the reading. When the test
leads are shorted together in this range, the meter will display 010. This residual
reading must be subtracted from the reading. For example, when measuring
1100MΩon the 2000MΩrange, the display will read 1100, from which the 10
residual is subtracted to obtain the actual resistance of 1100MΩ .
Diode Tests
1.Connect the red test lead to the “ VΩ” jack and the black test lead to
the ”C O M ” jack.
2.Set the Function/Range switch to the “
3.Turn off power to the circuit under test.
4.Touch probes to the diode. A forward-voltage drop is about 0.6V (typical for a
5.Reverse probes. If the diode is good, “OL” is displayed. If the diode is shorted,
OPERATION
jack.
range. If magnitude of voltage is not known, set switch to the highest range
and reduce until a satisfactory reading is obtained.
“COM” jack.
where the measurement is to be taken. Connect the meter in series with the
circuit.
position.
the ”C O M ” jack.
is the measured value of resistance. In continuity test, the beeper sounds
continuously, if the resistance is less than 100Ω.
silicon diode).
Logic Lo (0.8 ±0.5V)
.
(Autoranging)
“ position.
6. If the diode is open, “OL” is displayed in both directions.
Capacitance Measurements
1.Set the Function/Range switch to the desired F (capacitance) range.
2.Never apply an external voltage to the Cx sockets.
3.Insert the capacitor directly into the Cx sockets.
4.Read the capacitance directly from the display.
Transistor hFE Measurements
1.Set the Function/Range switch to the desired hFE range (PNP or NPN type
2.Never apply an external voltage to the hFE sockets.
3.Plug the transistor directly into the hFE sockets. The sockets are labeled E, B,
4.Read the transistor hFE directly from the display.
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”
3.Connect the test leads to the point of measurement and read the frequency
Logic Measurements
1.Set the Function/Range switch to the “LOGIC” position.
2.Connect the red test lead to “V Ω ” jack and the black test lead to the ”C O M ”
3.Connect the red test lead to the test point and the black lead to the common
4. A “▲” on the display indicates TTL logic high and a “ ▼” indicates a TTL logic
MAINTENANCE
Battery Replacement
Power is supplied by a 9 volt battery. (NEDA 1604, IEC 6F22). The "
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 a brasives or
solvents. Dirt or moisture in the terminals can affect readings.
Safety: Conforms to IEC61010-1 (EN61010-1), CATII 1000V, CATIII 600V, Class
CATII: Is for measurements performed on circuits directly connected to the
CAT III: Is for measurements performed in the building installation.
EMC: Conforms to EN61326.
The symbols used on this instrument are:
Remove test leads before changing battery or fuse or
performing any servicing.
“000” or another number is displayed.
Damage to the meter rnay result.
transistor).
Damage to the meter may result.
and C for emitter, base, and collector.
jack.
from the display.
jack.
buss of the logic circuit.
low. Both indicators are on when the point of measurement is toggling high
and low.
Equipment protected throughout by Double insulation (Class II)
Alternating current
Direct current
Ground
Caution, refer to accompanying documents
II, Pollution degree 2 Indoor use.
low-voltage installation.
WARNING
" appears
2707B Summary of contents
Page 1
... OPERATING INSTRUCTIONS SPECIFICATIONS Display: 3½ digit liquid crystal display (LCD) with a maximum reading of 1999. MODEL 2707B Polarity: Automatic, positive implied, negative polarity indication. DIGITAL MULTIMETER Overrange: (OL) or (-OL) is displayed. Zero: Automatic. Low battery indication: The " below the operating level. Measurement rate: 2.5 times per second, nominal. ...
Page 2
... INSTRUCCIONES DE FUNCIONAMIENTO ESPECIFICACIONES MODELO 2707B Pantalla: 3 ½ dígitos, pantalla de cristal líquido (LCD) con un máximo de la MULTIMETRO DIGITAL lectura de 1999. Polaridad: Automática, positiva implícita, indicación de polaridad negativa. Overrange: (OC) o (-OC) aparece en pantalla. Cero: Automatico. Indicación de batería baja: El " ...
Page 3
... Manuel d’utilisation SPECIFICATIONS Modèle 2707B Affichage: 3½ digits (LCD) avec un affichage de 1999 maximum Multimètre Numérique 2000 points TRMS Polarité: Automatique, avec indication du signe moins. Dépassement: (OL) ou (-OL) est affiché. Zéro: Automatique. Indication de pile usée: le symbole " qu’il faut la remplacée. ...
Page 4
... Display: 3½ -stellige Flüssigkristallanzeige (LCD) mit max. 1999 Zählimpulsen. DIGITAL-MULTIMETER Polarität: Automatisch, positive Polarität implizit, negative wird angezeigt. Bereichsüberschreitung: Anzeige von (OL) oder ( -OL). MODELL 2707B Null: Automatisch Indikator bei schwacher Batteriespannung : Sinkt die Batteriespannung unter das Betriebsniveau, wird das Symbol Messrate: Nennwert 2,5 Mal pro Sekunde. Betriebsumgebung: 0℃ ...
Page 5
B&K Precision warrants to the original purchaser that its products and the component parts thereof, will be free from defects in workmanship and materials for a period of one year from date of purchase from an authorized B&K Precision distributor. ...