ADCMT 7451A User Manual

7451A/7461A/7461P Digital Multimeter Operation Manual
7.1.2 AC Voltage Measurement (ACV, ACV(AC+DC))
7-4
ACV(AC+DC)
Additional error depending on the crest factor (For a non-sinusoidal input voltage)
Additional error depending on the AC filter Integration time: 10 PLC
Maximum allowable applied voltage
Input
terminal
Range
Maximum
display
Resolution
Input
impedance
Measurement accuracy *1 (% of reading + digits) 23C5C
20 Hz -
45 Hz
45 Hz -
100 Hz
100 Hz -
20 kHz
20 kHz -
50 kHz
50 kHz -
100 kHz
100 kHz -
300 kHz *2
V-COM 100 mV 119.99 10 V1 M2%,
140 pF or less
0.28+6 0.1+6 0.06+6 0.12+18 0.6+21 5+60
1000 mV 1199.9 100V1 M2%,
140 pF or less
0.28+5 0.1+5 0.06+5 0.12+5 0.6+8 4+50
10 V 11.999 1 mV 1 M2%,
140 pF or less
0.28+4 0.1+4 0.06+4 0.12+5 0.6+8 4+50
100 V 119.99 10 mV 1 M2%,
140 pF or less
0.28+4 0.1+4 0.06+4 0.12+5 0.6+8 4+50
700 V 749.9 100 mV 1 M2%,
140 pF or less
0.28+3 0.1+3 0.06+3 0.12+4 0.6+6 4+35
*1 AC filter: SLOW, Integration time: 10 PLC, Display digit: 4 1/2, Sinusoidal input voltage
The input voltage is restricted to 2.2  10
7
V•Hz in the 100 V and 700 V ranges.
If the input voltage is 10% or less of the full scale, 30 V is added to the measurement accuracy as the additional error.
*2 100 kHz-200 kHz in the 100 mV and 1000 mV ranges
1 - 2 0.05% of range
2 - 3 0.15% of range
3 - 5 0.4% of range
Frequency bandwidth
Additional error (% of reading)
Response time *1
20 Hz - 45 Hz 45 Hz - 100Hz 100 Hz - 1 kHz More than 1 kHz
SLOW 20 Hz - 300kHz 0 0 0 0 3 s
MED 20 Hz - 300kHz 0.7 0.23 0.04 0 500 ms
FAST 300 Hz - 300kHz - - 0.1 0 100 ms
*1 Time until the measurement value reaches within 0.1% of the final value in the same range
Between V and COM terminals
700 Vrms, 1000 Vpeak, 2.2  10
7
VHz
Between COM terminal and chassis 500 V

ADCMT 7451A Specifications

General

Brand	ADCMT
Model	7451A
Category	Multimeter
Language	English