Fluke i6000s Flex-24 User manual

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®
i6000s Flex
AC Current Probe
Instruction Sheet
Introduction
The i6000s 24 Flex and i6000s 36 Flex AC Current Probes
(hereafter referred to as “the Probes”) are used with
oscilloscopes, digital multimeters, recorders or data loggers. The
Probes can be used to measure AC current up to 6000 A. The
flexible measuring head allows current measurements on
conductors that are hard to reach or inaccessible using typical
clamp-on current probes.
The Probes provide a low-voltage (3 V ac) output that is
proportional to the current being measured. The Probes provide
full-scale direct readings for 60 A, 600 A, and 6000 A.
Symbols
The following table shows the symbols used on the product
and/or in this manual.
Symbol Description
~Do not dispose of this product as unsorted municipal
waste. Go to Fluke’s website for recycling information.
WImportant Information. Refer to the manual.
XHazardous Voltage. Risk of electric shock.
TDouble/Reinforced insulation.
-Do not apply around or remove from the HAZARDOUS
LIVE conductors.
PComplies with the relevant European standards.
>Conforms to Underwriters’ Laboratory, Inc.
;Conforms to Australian standards.
PN 2842359
June 2007
©2007 Fluke Corporation. All rights reserved. Printed in China.

Safety Instructions
In this instruction sheet, a Warning identifies conditions and
actions that pose hazard(s) to the user. A Caution identifies
conditions and actions that may damage the calibrator or the test
instruments.
WX Warning
To avoid electric shock or personal injury:
•If the Probes are used in a manner not
specified in these operating instructions,
protection provided by the Probes may be
impaired.
•Use the Probes only if qualified.
•Use caution during installation and use of the
Probes; high voltages and currents may be
present in circuit under test.
•Have maintenance performed by only qualified
service personnel.
•Protect the Probes against water and
humidity.
•Wear protective clothing and gloves as
required.
•Do not install this product on live conductors.
Always de-energize the circuit under test
before installing the flexible measuring head.
•Always inspect the electronics unit,
connecting cable, and flexible measuring head
for damage before using the Probe.
•Do not use the Probe if damaged.
•Always connect Probe to display device
before installing the flexible measuring head.
•Never change batteries while measurement
head is installed on conductor.
•Never connect or disconnect the external
power supply while the measurement head is
installed on a conductor.
•Use only the provided original or specified
accessories.
•Adhere to local and national safety codes.
Individual protective equipment must be used
to prevent shock and arc blast injury where
hazardous live conductors are exposed.
•CAT III equipment is designed to protect
against the transients in the equipment in
fixed equipment installations, such as
distribution panels, feeders and short branch
circuits, and the lighting systems in large
buildings.

Specifications
Electrical Characteristics
Current Ranges 60 A / 600 A / 6000 A ac rms
Output Sensitivity
(AC Coupled) 50 mV / 5 mV / 0.5 mV per A
Load Impedance 100 kΩminimum
Accuracy (at 25 ºC) ±1% of range (45 – 65 Hz)
Linearity
(10 % to 100 % of range) ±0.2 % of reading
Noise 8 mV ac rms (60 A)
2 mV ac rms (600/6000 A)
Frequency Range 10 Hz to 50 kHz (- 3 dB)
Phase error <±1° (45 – 65 Hz),
±10° (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
Power Supply
2 x AA MN 1500 LR6 Alkaline
400 hours, low battery indicator
or dedicated ext power supply
Temperature Coefficient ±0.08 % of reading per °C
Working Voltage 600 V ac rms or dc

General Characteristics
Head Cable
Length
(double insulated)
610 mm (24 in.) i6000s Flex-24
915mm (36 in.) i6000s Flex-36
Cable Diameter 14.3 mm (0.562 in)
Bend Radius 38.1 mm (1.5 in)
Cable Length 2 m long (78.7 in) (head to electronics)
Output
Connection
0.5 m cable terminated with safety BNC
connector Supplied with 4 mm safety plug
adapter
Operating
Temperature
- 20 °C to +90 °C (-4 to 194 °F) (head)
- 20 °C to +85 °C (-4 to 185 °F) (electronics)
Storage
Temperature
- 40 °C to +105 °C (-40 to 221 °F) (head)
- 20 °C to +85 °C (-4 to 185 °F) (electronics)
Operating
Humidity 15 % to 85 % (non-condensing)
Weight 180 g (head), 190 g (electronics)
Safety Standards
EN 61010-1: 2001
EN 61010-2-032: 2002
EN 61010-031: 2002
600 V rms Category III, Pollution Degree 2.
Use of the Probes on uninsulated conductors is limited to 600
V ac rms or dc and frequencies below 1 kHz.
EMC Standards
EN 61326 : 1998 +A1, A2, & A3

Operating Instructions
ewf0001.eps
AMeasuring head
BMeasuring head coupling
CHead output cable
DEnclosure
EPower on/Range selector
FBattery low indicator
GPower on indicator
HOutput cable
ISafety BNC connector
JExternal power supply input

Battery Installation
XWWarning
To avoid electric shock or personal injury:
•Remove Probe from energized circuits before
opening battery door.
•Never operate the unit without the battery cover
installed.
The Probe requires two AA/MN1500/LR6 alkaline batteries for
operation. The battery compartment is accessed from the rear
end of the electronic enclosure.
The batteries must be replaced when the LED is lit continuously
or when it fails to light up. Ensure that the Probe is away from
any current carrying conductor and also that the output is
disconnected from other equipment.
To install the battery:
1. Use a coin or a similar tool to turn the battery lock (¼
turn) until the dot aligns with the unlock symbol.
2. Remove the battery cover.
3. Install the batteries ensuring that correct polarity is
observed.
4. Replace the battery cover and turn the battery lock until
the dot aligns with the lock symbol.
External Power Supply
An optional Class II external power supply is available from
Fluke. The power supply is designed to ensure that the Probe
continues to meet its specified safety standards. The usage of a
power supply from another vendor is not recommended.
XWWarning
To avoid electric shock or injury, remove Probe and
all other connections from energized circuits before
connecting external power supply to the instrument.
Measuring Current
XWWarning
•To avoid electric shock or injury, read Safety
Instructions before operating this product
•Ensure that the conductor to be tested is de-
energized
To measure current:
1. Connect the output of the electronics to the input of an
oscilloscope or other data recording device.

XWWarning
To avoid electric shock or injury, the flexible current
Probes are not for use on conductors with a
potential of over 600 V.
2. Wrap the flexible measuring head around the conductor
to be tested in a close coupling manner.
3. Energize the circuit under test.
4. For most accurate measurement, centre the flexible
head around the conductor.
5. Locate coupling away from the nearby conductors.
WX Warning
To avoid electric shock or injury:
•Do not use the flexible current Probes to
measure bare conductors unless wearing
protective clothing suitable for high voltage
work.
•Always use appropriate equipment for personal
protection. When installed on bare
conductors/busbars, the product must be within
a suitable enclosure.
Ieb0001.eps
Operation
To activate the unit, move the switch from ‘Off’ position to the
required measuring range. If the value of current being measured
is unknown, select the 6000 A current range and then reduce
accordingly.

Battery Status
Battery status is indicated by an LED on the front of the Probes.
This LED will flash one time when the unit is activated. The
length of time the LED is lit will increase as battery life
decreases. Momentary lighting of LED indicates batteries are
good. Continuous lighting of LED indicates low battery and
requires replacement at the earliest. No lighting of LED indicates
batteries are dead and require replacement immediately.
Maintenance
WX Warning
To avoid electric shock or injury:
•Do not use Probes if damaged.
•Always inspect the electronics unit, connecting
cable, and flexible measuring head for damage
before use.
•To avoid electric shock, keep the Probes clean
and free of surface contamination.
Use Isopropyl alcohol to clean the control unit and measuring
head. Make sure that the flexible measuring head, connecting
cable, and electronic enclosure are dry before further use.
LIMITED WARRANTY AND LIMITATION OF LIABILITY
This Fluke product will be free from defects in material and
workmanship for one year from the date of purchase. This
warranty does not cover fuses, disposable batteries, or damage
from accident, neglect, misuse, alteration, contamination, or
abnormal conditions of operation or handling. Resellers are not
authorized to extend any other warranty on Fluke’s behalf. To
obtain service during the warranty period, contact your nearest
Fluke authorized service center to obtain return authorization
information, then send the product to that Service Center with a
description of the problem.
THIS WARRANTY IS YOUR ONLY REMEDY. NO OTHER
WARRANTIES, SUCH AS FITNESS FOR A PARTICULAR
PURPOSE, ARE EXPRESSED OR IMPLIED. FLUKE IS NOT
LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
CONSEQUENTIAL DAMAGES OR LOSSES, ARISING FROM
ANY CAUSE OR THEORY. Since some states or countries do
not allow the exclusion or limitation of an implied warranty or of
incidental or consequential damages, this limitation of liability
may not apply to you.
Fluke Corporation
P.O. Box 9090
Everett, WA 98206-9090
U.S.A.
Fluke Europe B.V.
P.O. Box 1186
5602 BD Eindhoven
The Netherlands
11/99