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BK Precision 391A - Test Bench True RMS DMM in new rubberized case
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BK Precision 391A - Test Bench True RMS DMM in new rubberized case
High performance and value priced, this Test Bench® model 391A True RMS meter offers more features for the dollar than other multimeters. This meter has a dual injection molded case that allows a better grip and offers better meter protection. CE marked and UL listed. 4 1/2, 20000 count LCD display 0.05% basic accuracy Auto power off All current ranges are fused protected Designed to meet IEC61010 1, CATIII 600V, class2
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 Specifications
| Volts | True RMS reading | | DC Ranges | 200 mV, 2V, 20V, 200V, 1000V | | AC Ranges | 200 mV, 2V, 20V, 200V, 750V | | Resolution | 10uV, 100mV, 1mV 10 mV, 100 mV | | DC Accuracy | +-(0.05% + 3 dgt) | | AC Accuracy | +-(1%+10 dgt.) 50 Hz - 500 Hz | | | +-(2% + 10 dgt.) 500 Hz - 2 kHz | | | 500 Hz on 750V range | | Overload Protection | 1200VDC or AC rms | | | 500VDC/AC rms 15 sec | | | on 200mV range | | Input Impedance | 10 M | | Current | True RMS reading | | Ranges | 200 uA, 2 mA, 20 mA, 200 mA, 20A* | | Resolution | 10nA, 100 nA, 1 uA, 10 uA, 1 mA | | DC Accuracy | 200 uA to 200 mA: +-(0.5% rdg + 5 dgt.) 20 A: +-(2% rdg + 10 dgt.) | | AC Accuracy | 200 uA to 200 mA: +-(1.2% rdg + 10 dgt.)
20A: +-(2.5% rdg + 20 dgt.) | | Input Protection | uA/mA Input:
0.5A/500V fast blow ceramic fuse
20A input:
20A/600A fast blow ceramic fuse | | Max. Burden Voltage | 600mV (900 mV on 20A range) | | Resistance | | | Ranges | 200, 2kOhm, 20 kOhm, 200 kOhm, 2 MOhm, 20 MOhm | | Resolution | 10 m, 100 mOhm, 1 Ohm, 10 Ohm, 100 Ohm, 1 kOhm | | Accuracy | 200 , 2 MOhm: +-(0.25% rdg + 10 dgt.)
2 k to 200 kOhm: +-(0.15% rdg + 3 dgt.)
20 M: +-(1.0% + 10 dgt.) | | Open Circuit Voltage | 3.2 VDC typ. | | Overload Protection | 500 VDC or AC rms | | Diode Test | Tested at 1 mA, 3.2 VDC max. typ.
+-(1% rdg + 10 dgt.) accuracy | | Transistor Test (hFE) | Does not apply | | Capacitance | | | Ranges | Does not apply | | Resolution | | | Accuracy | | | Test Voltage | | | Overload Protection | | | Frequency | | | Ranges | 2 kHz, 20 kHz, 200 kHz | | Resolution | 0.1 Hz, 1 Hz, 10 Hz | | Accuracy | +-(0.1% rdg + 3 dgt.) | | Sensitivity | 50 mV rms min. (@>30 & <70% duty cycle: 400 mV rms min.) | | Minimum Pulse Width | > 25 ns | | Duty Cycle Limits | > 30% & <70% | | Minimum Input Range | 2 kHz: 10Hz: 20 kHz: > 60 dgt; 200 kHz > 60 dgt | | Overload Protection | 500 VDC or AC rms | | Logic Test | | | Logic Threshold | Hi=2.8+-0.8V, 0=0.8 +-0.5V | | Frequency Response | 20 MHz | | Pulse Width | 25 ns | | Pulse Limits | > 20% and < 80% | | Indication | 40m sec beep at logic 1 (Hi) | | Overload Protection | 500 V DC or AC rms | | Temperature | | | Range, Resolution | Does not apply | | Accuracy | | | Duty Cycle | | | Range, Resolution | 0 to 90%, 0/1% | | Accuracy (5V logic) | +-(2.0% + 10 dgt.) | | Minimum Pulse Width | 10 us | | Frequency Range | 40 Hz to 20 kHz | | Overload Protection | 500 VDC or AC rms | | General | | | Display | 20000 count, 4 1/2 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. |
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