i3000s/i2000 Flex
AC Current Probe
Instruction Sheet
Introduction
The i3000s 24 Flex, i3000s 36 Flex, and i2000 Flex AC Current
Probes (the Probe) are used with oscilloscopes, digital
multimeters, recorders or data loggers. The i3000s probes can
be used to measure AC current up to 3000 A. The i2000 can be
used to measure AC current up to 2000 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 for i3000s models,
and 2 V AC for i2000) output that is proportional to the current
being measured. The Probes provide full-scale direct readings
for 30 A, 300 A, and 3000 A when using the i3000s models, and
20 A, 200 A, and 2000 A when using the i2000.
Safety Instructions
A Warning identifies conditions and procedures that are
dangerous to the user. A Caution identifies conditions and
procedures that can cause damage to the Product or the
equipment under test.
Warning
To prevent electric shock or personal injury:
• Use the Current Probe only as specified in the
operating instructions; otherwise the current
probe’s safety features may not protect you.
• Use the Probes only if qualified.
• Use caution during installation and use of the
Probe; high voltages and currents may be
present in circuit under test.
• Have maintenance performed by only qualified
service personnel.
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• Protect the probe 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.
• Use only the provided original or specified
accessories.
• Use the Current Probe only as specified in the
operating instructions; otherwise the current
probe’s safety features may not protect you.
• 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.
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Symbols
The following table shows the symbols used on the product
and/or in this manual.
Symbol Description
This product complies with the WEEE Directive marking
requirements. The affixed label indicates that you must
not discard this electrical/electronic product in domestic
household waste. Product Category: With reference to
the equipment types in the WEEE Directive Annex I, this
product is classed as category 9 "Monitoring and Control
Instrumentation" product. Do not dispose of this product
as unsorted municipal waste.
WARNING - RISK OF DANGER.
WARNING. HAZARDOUS VOLTAGE. Risk of electric
shock.
Consult user documentation.
Measurement Category III is applicable to test and
measuring circuits connected to the distribution part of
the building’s low-voltage MAINS installation.
Double Insulated
Do not apply around or remove from uninsulated
hazardous live conductors without taking additional
protective measures.
Conforms to European Union directives.
Conforms to relevant South Korean EMC Standards.
Certified by CSA Group to North American safety
standards.
Specifications
Electrical Characteristics
Measuring ranges
i3000s (24 and 36 Flex)
i2000 Flex
30 A/300 A/3000 A AC, switch
selectable
20 A/200 A/2000 A AC, switch
selectable
Output sensitivity 100 mV/10 mV/1 mV per A
(AC coupled)
Accuracy (at 25 ºC) ±1 % of range (45 Hz to 65 Hz)
Frequency range
i3000s (24 and 36 Flex)
i2000 Flex
10 Hz to 50 kHz (-3 dB typical)
10 Hz to 20 kHz (-1 dB typical)
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Phase error < ±1° (45 Hz to 65 Hz),
±10° (at 20 kHz)
Linearity ±0.2 % of reading from 10 % to
100 % of range
Position sensitivity ±2 % of range with cable >25 mm
(1 inch) from the coupling
External field ±1 % of range with cable
>200 mm (8 in) from the head
Minimum load 100 k for specified accuracy
Noise
8 mV RMS (0.3 % of range) in
30 A range
2 mV RMS (0.1 % of range) in
300 A and 3000 A
Gain variation ±0.08 %/°C
Operating temperature
i3000s (24 and 36 Flex)
i2000 Flex
-20 to +85 °C (-4 °F to +185 °F)
0 to 70 °C (32 °F to +158 °F)
Storage temperature
i3000s (24 and 36 Flex)
i2000 Flex
-20 to +85 °C (-4 °F to +185 °F)
0 to 70 °C (32 °F to +158 °F)
Temperature coefficient: ± 0.08 % of reading / °C
Operating humidity: 15 % to 85 % (non condensing)
Altitude: 2000 m
Power supply Two AA IEC LR6 alkaline
batteries (all probes)
Battery life
i3000s (24 and 36 Flex)
i2000 Flex
400 hours typical
200 hours typical
Low battery Indicated by a red LED
General Characteristics
Output con.
i3000s (24 and 36 Flex)
i2000 Flex
Coaxial cable with a male
safety BNC connector. BNC to
Banana plug adaptor (supplied)
0.5 m cable with 4 mm safety
plugs
Weight 0.19 kg (0.4 lb)
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Safety Standards
General IEC 61010-1 Pollution Degree 2
Measurement IEC 61010-2-032, CAT III 600 V
Electromagnetic Compatibility (EMC)
IEC 61326-1 Portable Electromagnetic Environment,
IEC 61326-2-2
CISPR 11: Group 1, Class A
Group 1: Equipment has intentionally generated and/or uses
conductively-coupled radio frequency energy that is necessary for
the internal function of the equipment itself.
Class A: Equipment is suitable for use in all establishments other
than domestic and those directly connected to a low-voltage power
supply network that supplies buildings used for domestic purposes.
There may be potential difficulties in ensuring electromagnetic
compatibility in other environments due to conducted and radiated
disturbances.
Caution: This equipment is not intended for use in residential
environments and may not provide adequate protection to radio
reception in such environments.
Dimensions 116 (l) x 68.5 (w) x 30 (d) mm
4.57 (l) x 2.71 (w) x 1.18 (d) in
Measuring Head Characteristics
Cable length
i2000, i3000s 24 Flex
610 mm (24 in), double
insulated
i3000s 36 Flex 915 mm (36 in), double
insulated
Cable diameter 14.3 mm (0.562 in)
Bend radius 38.1 mm (1.5 in)
Output cable 2 m long (78.7 in)
Coupling diameter 22.2 mm (0.875 in)
Material TPE rubber,
Polypropylene, UL94-VO
rated
Operating temperature -20 °C to +90 °C
(-4 °F to +194 °F)
Storage temperature -40 °C to +105 °C
(-40 °F to +221 °F)
Maximum relative
humidity
85 %
Weight 0.18 kg (0.4 Ib)
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Operating Instructions
(i3000s-24, -36)
(i2000)
Ieb000
1.eps
Measuring head
Measuring head coupling
Head output cable
Enclosure
Power on/Range selector
Battery low indicator
Power on indicator
Output cable
Banana or BNC connector
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Battery Installation
Warning
To prevent electric shock or personal injury:
• Never replace batteries with the flexible
measuring head installed on the conductor to
be tested or with the output connected to a
display device.
• Never operate the unit without the battery cover
installed.
The Probes require two AA IEC 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.
Measuring Current
Warning
To prevent 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.
Warning
To prevent electric shock or personal injury, the
flexible current probe is not for use on conductors
with a potential of over 600 V.
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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.
Warning
To prevent electric shock or personal injury:
• Do not use the flexible current probe 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
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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 3000 A (i3000s models) or 2000 A (i2000)
current range and then reduce accordingly.
Battery Status
Battery status is indicated by an LED on the front of the probe.
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
Warning
To prevent electric shock or personal injury, do not
use Probe 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 mild detergent to clean the
electronics unit and measuring head. Make sure that the flexible
measuring head, connecting cable, and electronic enclosure are
dry before further use.
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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.
11/99
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