ADCMT 7461A User Manual

7451A/7461A/7461P Digital Multimeter Operation Manual
7.1.5 AC Current Measurement (ACI, ACI(AC+DC))
7-12
ACI(AC+DC)
Additional error depending on the crest factor (For a non-sinusoidal input current)
Additional error depending on the AC filter Integration time: 10 PLC
Additional error depending on the integration time AC filter: SLOW
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.
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
1199.9 100 nA 103  0.45+4 0.25+4 0.11+4
10 mA 11.999 1 A 10.5  0.45+4 0.25+4 0.11+4
100 mA 119.99 10 A1.5  0.45+4 0.25+4 0.11+4
1000 mA 1199.9 100 A0.5  0.45+4 0.25+4 0.11+4
3 A 3.199 1 mA 0.5  0.45+1.2 0.25+1.2 0.15+1.2
*1: AC filter: SLOW, Integration time: 10 PLC, Display digit: 4 1/2, Sinusoidal input current
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 *2
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
*2 Time until the measurement value reaches within 0.1% of the final value in the same range
Integration time Additional error(digit)
10 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 4
2 ms < IT < 1 PLC - In a 5 1/2-digit display 20
1 PLC  IT < 10 PLC - In a 6 1/2-digit display 120
10 PLC < IT  10 s - In a 6 1/2-digit display 2

ADCMT 7461A Specifications

General

Brand	ADCMT
Model	7461A
Category	Multimeter
Language	English