Fluke MDA-550 Motor Drive Analyzers

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Specifications: Fluke MDA-510 and MDA-550 Motor Drive Analyzers

Measurement Function
DC voltage (V dc)
Maximum voltage with 10:1 or 100:1 probe	1000 V
Maximum resolution with 10:1 or 100:1 probe	1 mV
Full scale reading	999 counts
Accuracy at 4 s to 10 us/div	±(3 % + 6 counts)
AC voltage (V ac)
Maximum voltage with 10:1 or 100:1 probe	1000 V
Maximum resolution with 10:1 or 100:1 probe	1 mV
Full scale reading	999 counts
50 Hz	±(3 % + 10 counts) – 0.6 %
60 Hz	±(3 % + 10 counts) – 0.4 %
60 Hz to 20 kHz	±(4 % + 15 counts)
20 kHz to 1 MHz	±(6 % + 20 counts)
1 MHz to 25 MHz	±(10 % + 20 counts)
True-rms voltage (V ac+dc)
Maximum voltage with 10:1 or 100:1 probe	1000 V
Maximum resolution with 10:1 or 100:1 probe	1 mV
Full scale reading	1100 counts
DC to 60 Hz	±(3 % + 10 counts)
60 Hz to 20 kHz	±(4 % + 15 counts)
20 kHz to 1 MHz	±(6 % + 20 counts)
1 MHz to 25 MHz	±(10 % + 20 counts)
PWM voltage (V pwm)
Purpose	To measure on pulse width modulated signals, like motor drive inverter outputs
Principle	Readings show the effective voltage based on the average value of samples over a whole number of periods of the fundamental frequency
Accuracy	As Vac+dc for sinewave signals
Peak voltage (V peak)
Modes	Max peak, min peak, or pk-to-pk
Maximum voltage with 10:1 or 100:1 probe	1000 V
Maximum resolution with 10:1 or 100:1 probe	10 mV
Accuracy
Max peak, min peak	±0.2 division
Pk-to-pk	±0.4 division
Full scale reading	800 counts

General Specification
Current (AMP) with current clamp
Ranges	Same as V ac, Vac+dc or V peak
Scale Factors	0.1 mV/A, 1 mV/A, 10 mV/A, 20 mV/A, 50mV/A, 100 mV/A, 200 mV/A, 400 mV/A
Accuracy	Same as Vac, Vac+dc or V peak (add current clamp accuracy)
Frequency (Hz)
Range	1.000 Hz to 500 MHz
Full scale reading	999 counts
Accuracy	±(0.5 % + 2 counts)
Voltage/Herz ratio (V/Hz)
Purpose	To show the measured V PWM value (see V PWM) divided by the fundamental frequency on variable ac motor speed drives
Accuracy	% Vrms + % Hz
Voltage unbalance drive input
Purpose	To show the highest percentage difference of one of the phase vs average of the 3 true-rms voltages
Accuracy	Indicative percentage based on Vac+dc values
Voltage unbalance drive output and motor input
Purpose	To show the highest percentage difference of one of the phase vs average of the 3 PWM voltages
Accuracy	Indicative percentage based on V PWM values
Current unbalance drive input
Purpose	To show the highest percentage difference of one of the phase vs average of the 3 AC current values
Accuracy	Indicative percentage based on Aac+dc values
Current unbalance drive output and motor input
Purpose	To show the highest percentage difference of one of the phase vs average of the 3 AC current values
Accuracy	Indicative percentage based on A ac values
Rise and fall time
Readings	Voltage difference (dV), time difference (dt), voltage vs time difference (dV/dt), overshoot
Accuracy	As oscilloscope accuracy
Harmonics and spectrum
Harmonics	DC to 51st
Spectrum ranges	1…9 kHz, 9-150 kHz (20 MHz filter on), up to 500 MHz (voltage modulation)
Shaft voltage
Events / second	Indicative percentage based on rise and fall time (Impulse discharges) measurements
Report data capture
Number of screens	Typical 50 screens can be saved in reports (depends on compression ratio)
Transfer to PC	Using 2 GB USB stick or mini-USB to USB cable and FlukeView™ 2 for ScopeMeter™ test tool
Probe settings
Voltage probe	1:1, 10:1, 100:1, 1000:1, 20:1, 200:1
Current clamp	0.1 mV/A, 1 mV/A, 10 mV/A, 20 mV/A, 50 mV/A, 100 mV/A, 200 mV/A, 400 mV/A
Shaft voltage probe	1:1, 10:1, 100:1