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.
Operating temperature range:
-20 °C to +90 °C (-4 °F to 190 °F) (head),
-20 °C to +85 °C (-4 °F to 185 °F) (electronics)
Storage temperature range:
-40 °C to +105 °C (-40 °F to 221 °F) (head),
-20 °C to +85 °C (-4 °F to 185 °F) (electronics)
Operating humidity: 15 % to 85 %
(non-condensing)
Weight: 180 g (0.396 lb) (head),
190 g (0.419 lb) (electronics)
Safety standards
BS EN 61010-1: 2001
BS EN 61010-2-032: 2002
BS EN 61010-031: 2002
600 Vrms, Category III, Pollution Degree 2
Use of the probe on uninsulated conductors is limited to 600 V acrms
or dc and frequencies below 1 kHz.
EMC Standards
EN 61326: 1998 +A1, A2, & A3
Fluke Corporation
PO Box 9090, Everett, WA USA 98206
Fluke Europe B.V.
PO Box 1186, 5602 BD
Eindhoven, The Netherlands
For more information call:
In the U.S.A. (800) 443-5853 or
Fax (425) 446-5116
In Europe/M-East/Africa +31 (0) 40 2675 200 or
Fax +31 (0) 40 2675 222
In Canada (800) 36-FLUKE or
Fax (905) 890-6866
From other countries +1 (425) 446-5500 or
Fax +1 (425) 446-5116
Web access: http://www.fluke.com
©2006 Fluke Corporation. All rights reserved.
Specifications subject to change without notice.
Printed in U.S.A. 12/2006 2747103 D-EN-N Rev C
Fluke. Keeping your world
up and running.™
Ordering information
i3000s FLEX-24 AC Current Probe, 24-inch circumference
i3000s FLEX-36 AC Current Probe, 36-inch circumference
i3000 FLEX-4PK, AC Current Probe, 4-pack of i3000s FLEX-24
Optional Accessories
FLEX PSU-EU Power supply unit for Europe
FLEX PSU-UK Power supply unit for the United Kingdom
Note: Power supply units only available for Europe and
the United Kingdom.
i3000s Flex connected to a Fluke 434 Power
Quality Analyzer (The i430 FLEX-4PK can be
used with the Fluke 434 and 435, without
the need for the control box).
i3000s Flex connected to a Fluke 199C
ScopeMeter.
