Cut Sheet

Technical Data
Fluke i3000s Flex
AC Current Clamp
Electrical specifications
Current ranges: 30 A, 300 A, 3000 A ac rms
Output sensitivity (ac-coupled): 100 mV,
10 mV, 1 mV per A
Load impedance: 100 kW minimum
Accuracy (at +25 °C): ± 1 % of range
(45 Hz to 65 Hz)
Linearity (10 % to 100 % of range):
± 0.2 % of reading
Noise: 8 mV ac rms (30 A), 2 mV ac rms
(300 A, 3000 A)
Frequency range: 10 Hz to 50 kHz (-3 dB)
Phase error: < ± 1º (45 Hz to 65 Hz), ± 10º
(at 20 kHz)
Position sensitivity (with cable > 25 mm
from the coupling): ± 2 % of range
External field (with cable > 200 mm from
the head): ± 1 % of range
The i3000s Flex is an ac current clamp
utilizing the Rogowski principle. It
can be used to measure currents up
to 3000 A when used in conjunction
with oscilloscopes, recorders or data
loggers. The flexible and lightweight
measuring head allows quick and easy
installation in hard to reach areas.
Power supply: 2 x AA MN 1500 LR6 alkaline,
400 hours, low battery indicator
Temperature coefficient: ± 0.08 % of reading per °C
Working voltage (see Safety Standards section):
600 V ac rms or dc
General specifications
Head cable length (double insulated):
610 mm (24 in) i3000s Flex-24
915 mm (36 in) i3000s Flex-36
Head cable diameter: 14.3 mm
Head bend radius: 38.1 mm
Cable length (head to electronics): 2 meters
Output connection: 0.5 m cable terminated with
safety BNC connector. Supplied with BNC to Banana
safety plug adapter.