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BK 391A Test Bench DMM Multimeter
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BK 391A
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Features:
- 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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Description
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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.
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Models, Options, & Accessories
| Model |
Description |
List Price |
Sale Price |
| 391A |
Test Bench True RMS DMM in new rubberized case |
| $195.00 |  |
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| Model |
Accessories |
List Price |
Sale Price |
| LC 29B |
DMM Carrying Case |
| $17.75 | |
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| AD 101 |
Banana Plug Adapter Set - Discontinued - no replacement |
| CC 104 |
Lead Set, Sheathed Plug - Right Angle Plug, Silicone, 1.5m - Discontinued - suggested replacement: Cal Test CT2484 |
| CP 3 |
AC/DC Clamp Accessory for DMMs |
| $93.00 | |
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| PR 28A |
40kV High Voltage DMM Probe |
| $62.00 | |
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| PR-650A |
RF Probe, 100kHz - 650MHz, Sheathed B-Plugs |
| $71.00 | |
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| TIP 102 |
Insulated Alligator Clip Set - Discontinued - suggested replacement: Cal Test CT2490A |
| TIP 104 |
Insulated Spade Lug Adapters - Discontinued - suggested replacement: Cal Test CT2661 |
| TIP 125A |
Alligator Style Clips Set (red/black) |
| $28.00 | |
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| TIP 128A |
Insulated Piercing Clip (red/black) |
| $35.00 | |
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| TIP 129 |
Alligator Clip w/B-Jack, BLK/RED - Discontinued - suggested replacement: Cal Test CT3155 |
| TIP 130 |
Probe Body Set w/Replaceable Contact Tip, BLK/RED |
| $7.25 | |
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| TL 1 |
Sheathed Test Lead Set |
| $8.50 | |
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| TL 10 |
SMD Probe Kit |
| $22.88 | |
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| TL 100A |
Test Probe Set, Low Cost IEC1010 (PVC) w/Alligator - Discontinued - replaced by BK TL 35A |
| TL 130A |
General Purpose DMM Kit |
| $42.00 | |
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| TL 140 |
5-way Test Clip to Shth Right Angle Plug, Silicone, BLK/RED |
| $36.40 | |
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| TL 2A |
Deluxe Test Lead Set |
| $20.80 | |
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| TL 3 |
Tip Kit Accessories for TL 2A |
| $17.00 | |
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| TL 4 |
Universal Test Lead Set |
| $9.00 | |
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| TL 8 |
Tweezer Test Lead (Surface Mount) |
| $26.00 | |
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| TL-50 |
Maxi-Pro DMM Kit |
| $68.00 | |
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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 |
| 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 |
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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) |
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