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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. |
产品名称 | 产品简介 | 产品编号 |
---|---|---|
BK389A万用表 | 4000-count LCD display Basic accuracy 0.25% V DC | ME-02883-00 |