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Dual Input Meter The accuracy of all measurements is within ±(% of reading + number of counts) fro
Dual Input Meter
The accuracy of all measurements is within ±(% of reading + number of counts) from 18 °C to 28 °C.
Add 0.1x (specific accuracy) for each °C below 18 °C or above 28 °C. For voltage measurements with 10:1 probe, add probe uncertainty +1%. More than one waveform period must be visible on the screen.
Input A and input B - DC voltage (VDC)
Ranges
500 mV, 5 V, 50 V, 500 V, 750 V.
Accuracy
±(0.5% +5 counts).
Common mode rejection (CMRR)
>100 dB @ dc, >60 dB @ 50, 60, or 400 Hz.
Full scale reading
5000 counts.
True-rms voltages (V ac and V ac+dc)
Ranges
500 mV, 5 V, 50 V, 500 V, 750 V.
Accuracy for 5% to 100% of range (DC coupled)
DC to 60 Hz (V ac+dc) - ±(1% +10 counts)
1 Hz to 60 Hz (V ac) - ±(1% +10 counts).
Accuracy for 5% to 100% of range (AC or dc coupled)
60 Hz to 20 kHz - ±(2.5% +15 counts).
DC rejection (only VAC)
>50 dB.
Common mode rejection (CMRR)
>100 dB @ dc
>60 dB @ 50, 60, or 400 Hz.
Full scale reading
5000 counts, reading is independent of any signal crest factor.
Peak
Modes
Max peak, Min peak, or pk-to-pk.
Ranges
500 mV, 5 V, 50 V, 500 V, 2200 V.
Accuracy
Accuracy Max peak or Min peak: 5% of full scale
Accuracy Peak-to-Peak: 10% of full scale.
Full scale reading
500 counts.
Frequency (Hz)
Ranges
123B: 1 Hz, 10 Hz, 100 Hz, 1 kHz, 10 kHz, 100 kHz,1 MHz, 10 MHz, and 50 MHz.
Frequency range
15 Hz (1 Hz) to 50 MHz in continuous autoset.
Accuracy @1 Hz to 1 MHz
±(0.5% +2 counts).
Full scale reading
10,000 counts.
RPM
Max reading
50.00 kRPM.
Accuracy
±(0.5% +2 counts).
Duty cycle (PULSE)
Range
2% to 98%.
Frequency range
15 Hz (1 Hz) to 30 MHz in continuous autoset.
Pulse width (PULSE)
Frequency range
15 Hz (1 Hz) to 30 MHz in continuous autoset.
Full scale reading
1000 counts.
Amperes (AMP)
With current clamp
Ranges: Same as V dc, V ac, V ac+dc, or PEAK
Scale factors: 0.1 mV/A, 1 mV/A, 10 mV/A, 100 mV/A, 400 mV/A, 1 V/A, 10 mV/mA.
Temperature (TEMP) with optional temperature probe
Range
200 °C/div (200 °F/div).
Scale factor
1 mV/°C and 1 mV/°F.
Accuracy
As V dc (add temp. probe uncertainty).
Decibel (dB)
0 dBV
1 V.
0 dBm (600 Ω /50 Ω)
1 mW referenced to 600 Ω or 50 Ω.
dB on
V dc, V ac, or Vac+dc.
Full scale reading
1000 counts.
Crest factor (CREST)
Range
1 to 10.
Full scale reading
90 Counts.
Phase
Modes
A to B, B to A.
Range
0 to 359 degrees.
Resolution
1 degree.
Miscellaneous
Display
5.7-inch color active matrix TFT
640 x 480 pixels.
Waveform Display
Vertical: 10 div of 40 pixels
Horizontal: 12 div of 40 pixels.
Power
External: Via Power Adapter BC430
Input voltage: 10 V DC to 21 V DC
Power consumption: 5 W typical
Input connector: 5 mm jack
Internal: Via Battery Pack BP290
Battery power: Rechargeable Li-Ion 10.8 V
Operating time: 7 hours with 50% backlight brightness
Charging time: 4 hours with test tool off, 7 hours with test tool on
Allowable ambient temp: 0 to 40 °C (32 to 104 °F) during charging.
Memory
Internal memory can store 20 data sets (screen waveform and setup).
Interface
Optically isolated: Transfer screen copies (bitmaps), settings and data
USB to PC/laptop: OC4USB optically isolated USB adapter/cable, (optional), using FlukeView® software for Windows®..
Dimensions
259 x 132 x 55 mm (10.2 x 5.2 x 2.15 in).
Weight
1.4 kg (3.2 lb) including battery pack.
Fluke 123B warranty
3 years.