Datasheet

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Data Sheet
PM51A Digital Multimeter
Function Range Accuracy
Specifications
DC Voltage
400.0 mV ± (1.0 %+2 dgt)
4.000 V, 40.00 V, 400.0 V ± (2.0 %+2 dgt)
600 V ± (2.5 %+4 dgt)
NMRR > 50 dB @ 50 Hz/60 Hz
CMRR > 120 dB @ dc, 50 Hz/60 Hz; Rs=1 kW
Input impedance 10 MΩ, 30 pF nominal; (1000 MW for 400.0 mV range)
AC Voltage
50 Hz - 60 Hz 4.000 V, 40.00 V, 400.0 V ± (2.0 %+5 dgt)
60 Hz - 500 Hz 4.000 V, 40.00 V, 400.0 V ± (3.0 %+5 dgt)
50 Hz - 500 Hz 600 V ± (3.5 %+5 dgt)
Input impedance 10 MΩ, 30 pF nominal
CMRR > 60 dB @ dc to 60 Hz, Rs=1 kΩ
Capacitance
500.0 nF, 5.000 µF, 50.00 µF,
500.0 µF, 3000 µF
1 3
± (3.5 %+6 dgt
4
)
1
Additional 50.00 nF range accuracy is not specified
2
Accuracies with film capacitor or better
3
Updates > 1 minute on large values
4
Specified with battery voltage above 2.8 V (half full battery). Accuracy decreases gradually to 12% at low battery warning voltage of
approx 2.4 V.
Resistance
400.0 Ω ± (1.5 %+6 dgt)
4.000 KΩ, 40.00 KΩ, 400.0 KΩ ± (1.0 %+4 dgt)
4.000 MΩ ± (1.5 %+4 dgt)
40.00 MΩ ± (2.5 %+4 dgt)
Open circuit voltage 0.4 V DC typical
Frequency
400 Hz, 4 kHz, 40 kHz, 400 kHz, 1 MHz
1
± (0.5 %+4 dgt)
1
Specified at input voltage < 20 V ac rms input signal: Sine-wave, or square-wave with duty cycle > 40 % & < 70 %
Sensitivity (V-peak)
5 Hz - 100 kHz > 1.3 Vp
100 kHz - 500 kHz > 2.2 Vp
500 kHz - 1 MHz > 4.2 Vp
Diode Tester
Test current (typical) 0.25 mA
Open circuit voltage 1.6 V dc
Audible Continuity Tester
Open circuit voltage 0.4 V dc typical
Audible threshold 65 Ω ±55 Ω