ADCMT 7461A User Manual

7451A/7461A/7461P Digital Multimeter Operation Manual
7.1.5 AC Current Measurement (ACI, ACI(AC+DC))
7-11
Additional error depending on the integration time
Maximum allowable applied current
Between mA and COM terminals
3A (DC or ACrms)
Input protection By using the 3.15 A/250 V fast blow fuse which is compliant with
IEC60127-2 sheet1
The fuse can be changed on the rear panel.
7.1.5 AC Current Measurement (ACI, ACI(AC+DC))
• 7461A/61P
Measurement method True RMS measurement, RMS display
Input range 5% or more of a full scale
Crest factor 5:1 at a full scale (Except for the 3 A range)
Temperature coefficient (1/10 of measurement accuracy that includes the additional error)/C in each
range and frequency range
ACI
Integration time Additional error (digit)
100 s  IT < 200 s - In a 3 1/2-digit display 2
200 s  IT  2 ms Includes FAST1 and FAST2. In a 4 1/2-digit display 10
2.01 ms < IT < 9.99 ms - In a 5 1/2-digit display 20
10 ms < IT < 1 PLC - In a 5 1/2-digit display 2
1 PLC  IT < 10 PLC Integral multiple of 1 PLC In a 5 1/2-digit display 1
10 PLC < IT  10 s Integral multiple of 1 PLC In a 5 1/2-digit display 2
Input
terminal
Range
Maximum
display
Resolution
Resistance
between
input
terminals
Measurement accuracy *1
(% of reading + digits) 23C5C
20 Hz -
45 Hz
45 Hz -
100 Hz
100 Hz -
5 kHz
mA-COM
1000
A
1199.999 1 nA 103  0.45+400 0.25+400 0.11+400
10 mA 11.99999 10 nA 10.5  0.45+400 0.25+400 0.11+400
100 mA 119.9999 100 nA 1.5  0.45+400 0.25+400 0.11+400
1000 mA 1199.999 1 A0.5  0.45+400 0.25+400 0.11+400
3 A 3.19999 10 A0.5  0.45+120 0.25+120 0.15+120
*1: AC filter: SLOW, Integration time: 10 PLC, Display digit: 6 1/2, Sinusoidal input current

ADCMT 7461A Specifications

General

Brand	ADCMT
Model	7461A
Category	Multimeter
Language	English