BK390A万用表

 

Specifications

Model 390A

Volts

 

DC Ranges

400 mV, 4V, 40V, 400V, 1000V

AC Ranges

400 mV, 4V, 40V, 400V, 750V

Resolution

100uV, 1 mV, 10 mV, 100 mV, 1 V

DC Accuracy

+-(0.1% rdg + 2 dgt)

AC Accuracy

400 mV: +- (1.2% rdg + 5 dgt)

 

50 Hz - 100 Hz

 

+-(1.0% rdg + 3 dgt) 50 Hz - 500 Hz

Overload Protection

1100 VDC or AC rms

Input Impedance

400mV: > 100MΩ, 4V: 10 MOhm

Current

 

Ranges

400 uA, 4 mA, 40 mA, 400 mA, 20A*

Resolution

0.1 uA, 1 uA, 10 uA, 100 uA, 10 uA

DC Accuracy

400 uA - 400 mA: +-(1% rdg + 5 dgt) 20 A: +- (2% rdg + 3 dgt)

AC Accuracy

400 uA to 400 mA: +-(1.5% rdg + 4 dgt)
20A: +-(2.5% rdg + 4 dgt.)

Input Protection

uA/mA Input:
0.5A/500V fast blow ceramic fuse
20A input:
20A/600A fast blow ceramic fuse

Max. Burden Voltage

500mV (2V on 4mA, 400mA ranges)

Resistance

 

Ranges

400 Ω, 4 kOhm, 40 kOhm, 400 kOhm, 4 MOhm, 40 MOhm

Resolution

100 mΩ, 1 Ohm, 10 Ohm, 100 Ohm, 1 kOhm, 10 kOhm

Accuracy

400 Ω to 400 kOhm: +-(0.5% rdg + 4 dgt.)
4 MΩ: +-(1% rdg + 5 dgt.)
40 MΩ: +-(2% rdg + 5 dgt.)

Open Circuit Voltage

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

Overload Protection

500 VDC or AC rms

Diode Test

Tested at 1.2 mA, 3.0 VDC max. typ.
+-(1.5% rdg + 3 dgt.) accuracy

Transistor Test (hFE)

Does not apply

Capacitance

 

Ranges

4 nF, 40 nF, 400 nF, 4 uF, 40 uF, 400 uF, 4 mF, 40 mF

Resolution

1 pF, 10 pF, 100 pF, 1 nF, 10 nF, 100 nF, 1 uF, 10 uF

Accuracy

4 nF: +-(3% rdg + 20 dgt.) 4 nF to 40 uF: +-(3% rdg + 5 dgt.)
400uF to 40 mF: +-(5% rdg + 10 dgt.)

Test Voltage

< 1V

Overload Protection

500 VDC or AC rms

Frequency

 

Ranges

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

Resolution

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

Accuracy

+-(0.1% rdg + 3 dgt.)

Sensitivity

1 Hz - 4 MHz: 1V rms
4 MHz-40MHz: > 2V rms, <5V rms

Minimum Pulse Width

> 25 ns

Duty Cycle Limits

> 30% & <70%

Minimum Input Range

 

Overload Protection

500 VDC or AC rms

Logic Test

 

Logic Threshold

Does not apply

Frequency Response

 

Pulse Width

 

Pulse Limits

 

Indication

 

Overload Protection

 

Temperature

 

Range, Resolution

-58 0 to +2372 0 F, 1 0 F (-50 0 to +1300 0 C)

Accuracy

+-(0.8% rdg + 2 0 C) -50 0 - 400 0 C
+-(1% rdg + 2 0 C) 400 0 - 1300 0 C)

Duty Cycle

 

Range, Resolution

Does not apply

Accuracy (5V logic)

 

Minimum Pulse Width

 

Frequency Range

 

Overload Protection

 

General

 

Display

4000 count, 3 3/4 digit LCD with 41 segment analog bar graph

Polarity

Automatic, positive implied, negative polarity indication

Operating Temperature

32 0 to 122 0 (0 0 to 50 0 C), 0 to 70% R.H.

Dimensions (HxWxD)

7.8x3.5x1.57'' (198x90x40 mm)

Weight

11.3 oz. (320g)

Three Year Warranty

Accessories

SUPPLIED: 9V Battery, Test Leads, Instruction Manual, Thermocouple Probe (Model 390)
OPTIONAL: TL-2A Deluxe Test Leads, TL-3 Accessory Tip Kit (for TL-2A), PR-28A High Voltage Probe (40kVDC), TL-130A General Purpose DMM Kit
Carrying Case (not included): LC-29B

*10 A continuous, 20A for 30 seconds max.