B&K Precision 391AKIT Datasheet

Data Sheet

Handheld Digital Multimeters

Test Bench®Series

High Quality, Ruggedized, Multifunctional

High performance and value priced, the Test Bench®Series offers more features for the dollar than other multimeters. In addition to measuring voltage and current, the meters also measure capacitance, frequency and temperature, and include component test, diode test and logic indicator capabilities. See the chart below for the meter that best fits your needs. A double injection molded case provides improved grip and protection for the meters.

Features and Benefits

■ Resistance measurement

■ Frequency measurement

■ Diode check

■ Audible continuity

■ All current ranges fused

■ Auto power off

■ Ruggedized case

■ CATIII 1000 V, (all models)

■ CATIV 600 V, (392 & 393)

Features 392 & 393 391A 390A 389A 388B

True RMS √ √ - - -

Ranging Auto/Manual Manual Auto/Manual Auto/Manual Manual

DCV Accuracy 0.08% 0.05% 0.1% 0.25% 0.5%

AC/DC Voltage and Current √ √ √ √ √

Display Digits, Count 60000, 4 5/6 20000, 4 1/2 4000, 3 3/4 4000, 3 3/4 4000, 3 3/4

Bar Graph √ - √ √ -

Capacitance Measurement √ - √ √ √

Transistor Test - - - - √

Temperature Probe √ - √ - -

Logic Probe √ √ - - √

Relative Mode √ - √ √ -

Min/Max Hold √ - √ √ -

Peak Hold √ - √ √ Data Hold √ √ √ √ -

USB 393 only - √ - -

Specifications 392 & 393 391A 390A 389A 388B

Volts

DC Ranges 600 mV, 6 V, 60V, 600 V, 1000 V 200 mV, 2 V, 20 V, 200 V, 1,000 V 400 mv, 4 V, 40 V, 400 V, 1000 V

AC Ranges 600 mV, 6 V, 60V, 600 V, 750 V 200 mV, 2 V, 20 V, 200 V, 750 V 400 mv, 4 V, 40 V, 400 V, 750 V

Resolution 0.01 mV, 0.1 mV, 1 mV, 10 mV, 100 mV 10 µV, 100 mV, 1 mV 10 mV, 100 mV 100 µV, 1 mV, 10 mV, 100 mV, 1 V

Basic DC Accuracy ±(0.08% rdg + 5 dgt) ±(0.05% + 3 dgt) ±(0.1% rdg + 2 dgt) ±(0.25% rdg + 2 dgt) ±(0.5% rdg + 1 dgt)

Basic AC Accuracy ±(1.5% rdg + 20 dgt) 500 Hz -1 kHz ±(2% + 10 dgt) 500 Hz - 2 kHz ±(1.5% rdg +5 dgt) 500 Hz - 1 kHz ±(1.5% rdg +3 dgt) 500 Hz - 1 kHz

Overload Protection 1000 VDC or 750 VAC rms

Input Impedance 10 MΩ, 11 MΩ on 6 V range 10 MΩ 400 mV: >100 MΩ, 4V: 10 MΩ 40 V - 1000 V: 9.1 MΩ 10 MΩ

True RMS reading True RMS reading - - -

1200 VDC or AC rms

500 VDC/AC rms 15 sec

on 200 mV range

1100 VDC or AC rms 1000 VDC or peak AC

1200 VDC or AC rms

500 VDC/AC rms 15 sec

on 200 mV range

Technical data subject to change © B&K Precision Corp. 2014

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High Performance DMM

est Bench

eries

Specifications 392 & 393 391A 390A 389A 388B

urrent

Ranges 600 µA, 6000 µA, 60 mA, 400 mA, 20 A* 200 µA, 2 mA, 20 mA, 200 mA, 20 A* 400 µA, 4 mA, 40 mA, 400 mA, 20 A* 400 mA, 4 mA, 40 mA, 400 mA, 2 A, 20 A* esolution

DC Accuracy

AC Accuracy

Input Protection

Max. Burden Voltage

Resistance

Ranges 600 Ω, 6 kΩ, 60 kΩ, 600 kΩ, 6 MΩ, 60 MΩ 200 Ω;2 kΩ,20 kΩ,200 kΩ;2 MΩ,20 MΩ 400 Ω, 4 kΩ, 40 kΩ, 400 kΩ, 4 MΩ, 40 MΩ

Resolution 10 mΩ, 100 mΩ, 1 Ω, 10 Ω, 100 Ω, 1 kΩ 10 mΩ,100 mΩ,1 Ω,10 Ω,100 Ω,1 kΩ 100 mΩ, 1 Ω, 10 Ω, 100 Ω, 1 kΩ, 10 kΩ

Accuracy

Open Circuit Voltage

verload Protection

Diode Test

Transistor Test (hFE) Does not apply Does not apply Does not apply hFE range: 0 - 1000,hFE base current:10 µADC

Capacitance

Ranges 6 nF, 60 nF, 600 nF, 6 µF, 60 µF, 600 µF, 6 mF - 4 nF. 40 nF, 400 nF, 4 µF, 40 µF, 400 µF, 4 mF, 40 mF 4 nF. 40 nF, 400 nF, 4 µF, 40 µF

Resolution 1 pF, 10 pF, 100 pF, 1 nF, 10 nF, 100 nF, 1 µF - 1 pF, 10 pF, 100 pF, 1 nF, 10 nF, 100 nF, 1 µF, 10 µF 0.1 pF, 1 pF, 10 pF, 100 pF, 1 nF

ccuracy

est Voltage

Overload Protection 600 VDC or 600 VAC rms - 500 VDC or AC rms

Frequency

anges

Resolution

Accuracy ±(0.1% rdg + 10 dgt) ±(0.1% rdg + 3 dgt) ±(0.1% rdg + 3 dgt) ±(0.25% + 4 dgt) ±(0.1% + 2 dgt)

Sensitivity >100 ns

Minimum Pulse Width >25 ns >25 ns >25 ns >2 µs

Duty Cycle Limits >30% & <70% >30% & <70% >30% & <70%

Minimum Input Range >0 Hz 2kHz:10Hz:20kHz:>60dgt; 200kHz>60dgt - - -

Overload Protection 600 VDC or 600 VAC rms 500 VDC or 500 AC rms

Logic Test

Logic Threshold - Hi: 2.8±0.8 V, Lo: 0.8 ± 0.5 V - - Hi: 2.8±0.8 V, Lo: 0.8 ± 0.5 V

Frequency Response - 20 MHz - - 20 MHz

Pulse Width - 25 ns - - 25 ns Pulse Limits - >20% and <80% - - >20% and <80%

Indication - 40 ms beep at logic 1 (Hi) - - 40 ms beep at logic 1 (Hi)

Overload Protection - 500 V DC or 500 AC rms - - 500 V DC or 500 AC rms

Temperature

Range, Resolution

Accuracy

Duty Cycle

Range, Resolution 5 to 95%, 0.1% 0 to 90%, 0.1% - - -

Accuracy (5V logic) ±(2.0% rdg + 10 dgt) ±(2.0% rdg + 10 dgt) - - -

Minimum Pulse Width 10 µs 10 µs - - -

Frequency Range 40 Hz to 20 kHz 40 Hz to 20 kHz - - -

Overload Protection 600 VDC or 600 VAC rms 500 VDC or 500 AC rms - - -

General

Display 60000 count, 4 5/6 digit LCD 20000 count, 4 1/2 digit LCD 4000 count, 3 3/4 digit LCD with 41 segment analog bar graph 4000 count, 3 3/4 digit LCD Polarity Automatic, positive implied, negative polarity indication

Operating Temperature 32° to 122° (0˚ to 50˚C), 0 to 70% R.H.

Dimensions (HxWxD) 7.8 x 3.5 x 1.57" (198 x 90 x 40 mm)

Weight 14.1 oz. (400 g) 11.3 oz. (320 g)

Included Accessories 9 V batter y, test leads, instruction manual, thermocouple probe (models 390A, 392, & 393), software and USB interface cable (models 390A & 393)

* 10 A continuous, 20 A for 30 seconds maximum

0 nA, 100 nA, 1 µA, 10 µA, 1 mA

600 µA to 60 mA: ±(0.5% rdg + 10 dgt)

400 mA: ±(1.0% rdg + 10 dgt)

0 A: ±(2.0% rdg + 10 dgt)

600 µA to 400 mA: ±(1.5% rdg + 20 dgt)

20 A: ±(2.5% rdg + 20 dgt)

A/mA input: 0.5A/100V fast blow ceramic fuse

0A input: 20A/600A fast blow ceramic fuse

00 mV on 600 µA & 60 mA ranges,

V on 6000 µA range

00 Ω: ±(0.3% rdg + 20 dgt),

6 kΩ to 6 MΩ: ±(0.3% rdg + 10 dgt),

6 MΩ: ±(1.0% rdg + 10 dgt),

0 MΩ: ±(3.0% rdg + 20 dgt)

-1.2 VDC typical,

-3.0 VDC typical on 600 Ω range

00 VDC or 600 VAC rms

Tested at 0.5 mA, 2 VDC max. typical

±(2.0% rdg + 10 dgt) accuracy

6 nF: ±(3% rdg+30 dgt), 60 nF to 600 µF: ±(3%

rdg +10dgt), 6 mF: ±(5% rdg+10 dgt)

60 Hz, 400 Hz, 6 kHz, 60 kHz,

0.0001Hz, 0.01 Hz, 0.1 Hz, 1 Hz,

±(2.0% rdg + 6°F) -58°F to 32°F & 750°F to 2372°F,

±(1.0% rdg + 2°F) 32°F to 750°F

±(2.0% rdg + 3°C) -50° to 0°C & 400°C to 1300°C,

±(1.0% rdg + 1°C) 0°C to 400°C

1 V

600 kHz, 6 MHz, 10 MHz

10 Hz, 100 Hz, 1 kHz

-58° to +2372°F, 0.1F°,

(-50°to + 1300°C, 0.1C°)

0 nA, 100 nA, 1 µA, 10 µA, 1 mA

00 µA to200 mA:±(0.5% rdg + 5 dgt)

0 A: ±(2% rdg + 10 dgt)

200 µA to200 mA:±(1.2% rdg + 10 dgt)

20 A: ±(2.5% rdg + 20 dgt)

A/mA input:0.5 A/500 V fast blow ceramic fuse

0 A input: 20 A/600 A fast blow ceramic fuse

600 mV (900 mV on 20 A range) 500 mV (2 V on 4 mA, 400 mA ranges) 600 mV (900 mV on 2 A, 20 A ranges)

200 Ω, 2 MΩ: ±(0.25% rdg + 10 dgt)

2 kΩ to 200 kΩ: ±(0.15% rdg + 3 dgt)

0 MΩ: ±(1.0% + 10 dgt)

3.2 VDC typical -0.45 VDC typ. (-1.2 VDC on 400 Ω range) 0.6 VDC typ. (3.2 VDC on 400 Ω range)

00 VDC or 500 AC rms

Tested at 1 mA, 3.2 VDC max. typical

±(1% rdg + 10 dgt) accuracy

- <

kHz, 20 kHz, 200 kHz

0.1 Hz, 1 Hz, 10 Hz 1 Hz, 10 Hz, 100 Hz, 10 kHz, 100 kHz 1 Hz, 10 Hz, 100 Hz, 10 kHz

50 mVrms min. (At>30 & <70% duty

cycle: 400 mVrms min.)

.1 µA, 1 µA, 10 µA, 100 µA, 10 µA

400 µA - 400 mA:±(1% rdg +

5 dgt)

0 A: ±(2% rdg + 3 dgt)

400 µA to 400 mA:±(1.5% rdg + 4 dgt)

20 A: ±(2.5% rdg + 4 dgt)

400 Ω to 400 kΩ: ±(0.5% rdg + 4 dgt)

4 MΩ: ±(1% rdg + 5 dgt)

0 MΩ: ±(2% rdg + 5 dgt)

Tested at 1.2 mA, 3.0 VDC max. typical

±(1.5% rdg + 3 dgt) accuracy

4 nF: ±(3% rdg+20 dgt) 4 nF to 40 µF: ±(3% rdg +5dgt)

400 µFto 40 mF: ±(5% rdg + 10 dgt)

kHz, 40 kHz, 400 kHz, 4 MHz, 40 MHz

1 Hz - 4 MHz: 1Vrms

4 MHz - 40 MHz: >2 Vrms, <5 Vrms

-58° to +2372°F, 1F°,

(-50°to + 1300°C, 1C°)

±(0.8% rdg + 2°C) -50° - 400°C,

±(1% rdg + 2°C) 400° - 1300°C

(1% rdg + 1 dgt)

(2% rdg + 3 dgt)

- -

00 nA, 1 µA, 10 µA,100 µA,1 mA,10 mA

400 µA - 400 mA: ±(1% rdg + 1 dgt)

2 A: ±(1.5% rdg + 1 dgt)

0 A: ±(3% rdg + 3 dgt)

400 µA - 400 mA:±(1.5% rdg + 1 dgt)

2 A: ±(2% rdg + 4 dgt)

20 A: ±(3.5% rdg + 4 dgt)

A/mA input: 2 A/600 V fast blow ceramic fuse

0 A input: 20 A/600 V fast blow ceramic fuse

00 Ω: ±(1% rdg + 4 dgt)

4 kΩ to 4 MΩ: ±(0.8% rdg + 4 dgt)

40 MΩ: ±(2% rdg + 5 dgt)

Tested at 1 mA, 3.2 VDC max. typical

±(1.5% rdg + 3 dgt) accuracy

(3% rdg + 4 dgt)

3.5 V

kHz, 40 kHz, 400 kHz, 4 MHz

250 mVrms min. on 10 Hz to 1 MHz 500 mVrms min. on 1 MHz to 4 MHz

Three Year Warranty

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B&K Precision 391AKIT Datasheet

Specifications and Main Features

Frequently Asked Questions

User Manual