Extech Instruments EX540, User Manual, Page: 15 / 19

15 EX540-EN V1.2 7/10
Specifications
Function Range Resolution Accuracy
DC Voltage
400mV 0.01mV
±
(0.06% r 2 digits)
4V 0.0001V
40V 0.001V
400V 0.01V
1000V 0.1V
±
(0.1% r 2 digits)
AC Voltage
(AC+DC)
50 to 1000Hz 400mV 0.01mV ±
(1.0% r 4digits)
4V 0.0001V
±
(1.0% r 3digits)
40V 0.001V
400V 0.01V
1000V 0.1V
All AC voltage ranges are specified from 5% of range to 100% of range
DC Current 400
μ
A 0.01
μ
A
±
(1.0% r 3 digits)
4000
μ
A 0.1
μ
A
40mA 0.001mA
400mA 0.01mA
10A 0.001A
(20A: 30 sec max with reduced accuracy)
AC Current
(AC+DC)
50 to 1000Hz
400
μ
A 0.01
μ
A
±
(1.5% r 3 digits)
4000
μ
A 0.1
μ
A
40mA 0.001mA
400mA 0.01mA
10A 0.001A
(20A: 30 sec max with reduced accuracy)
All AC voltage ranges are specified from 5% of range to 100% of range
NOTE: Accuracy is stated at 65
o
F to 83
o
F (18
o
C to 28
o
C) and less than 75% RH.