BK389ABK389A万用表

 

Specifications

Model 389B

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

+-(0.25% rdg + 2 dgt)

AC Accuracy

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

 

50 Hz - 100 Hz

 

>10% of range at 200mV range

Overload Protection

1100 VDC or AC rms

Input Impedance

40V - 1000V: 9.1MΩ

Current

 

Ranges

400 mA, 4 mA, 40 mA, 400 mA, 2A, 20A*

Resolution

100 nA, 1 uA, 10 uA, 100 uA, 1 mA, 10 mA

DC Accuracy

400 uA - 400 mA: +-(1% rdg + 1 dgt)
2A: +-(1.5% rdg + 1 dgt)
20A: +-(3% rdg + 3 dgt)

AC Accuracy

400 uA - 400 mA: +-(1.5% rdg + 1 dgt)
2A: +-(2% rdg + 4 dgt)
20A: +-(3.5% rdg + 4 dgt)

Input Protection

uA/mA input:
2A/600V fastblow ceramic fuse
20A input:
20A/600V fastblow ceramic fuse

Max. Burden Voltage

600mV (900 mV on 2A, 20A 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: +-(1% rdg + 4 dgt.)
4 kΩ to 4 MOhm: +-(0.8% rdg + 4 dgt.)
40 MΩ: +-(2% rdg + 5 dgt.)

Open Circuit Voltage

0.6 VDC typ. (3.2 VDC on 400 Ω range)

Overload Protection

 

Diode Test

Tested at 1 mA, 3.2 VDC max. typ.
+-(1.5% rdg + 3 dgt.) accuracy

Transistor Test (hFE)

hFE range: 0 - 1000
hFE base current: 10 uA DC

Capacitance

 

Ranges

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

Resolution

0.1 pF, 1 pF, 10 pF, 100 pF, 1 nF

Accuracy

+-(3% rdg + 4 dgt.)

Test Voltage

< 3.5V

Overload Protection

500 VDC or AC rms

Frequency

 

Ranges

4 kHz, 40 kHz, 400 kHz, 4 MHz

Resolution

1 Hz, 10 Hz, 100 Hz, 10 kHz

Accuracy

+-(0.1% rdg + 2 dgt.)

Sensitivity

250 V rms min. on 10 Hz to 1 MHz
500 mV rms min. on 1 MHz to 4 MHz

Minimum Pulse Width

> 2 us

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

Does not apply

Accuracy

 

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

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.