i1000s
AC Current Probe for Oscilloscopes
Users Manual
PN 1574925
June 2000 Rev. 3, 3/17
© 2000-2017 Fluke Corporation. All rights reserved.
Specifications are subject to change without notification.
All product names are trademarks of their respective companies.
LIMITED WARRANTY AND LIMITATION OF LIABILITY
Each Fluke product is warranted to be free from defects in material and workmanship under normal use and service. The warranty period is one year and
begins on the date of shipment. Parts, product repairs, and services are warranted for 90 days. This warranty extends only to the original buyer or end-user
customer of a Fluke authorized reseller, and does not apply to fuses, disposable batteries, or to any product which, in Fluke's opinion, has been misused,
altered, neglected, contaminated, or damaged by accident or abnormal conditions of operation or handling. Fluke warrants that software will operate substantially in accordance with its functional specifications for 90 days and that it
has been properly recorded on non-defective media. Fluke does not warrant
that software will be error free or operate without interruption.
Fluke authorized resellers shall extend this warranty on new and unused products to end-user customers only but have no authority to extend a greater or
different warranty on behalf of Fluke. Warranty support is available only if product is purchased through a Fluke authorized sales outlet or Buyer has paid the
applicable international price. Fluke reserves the right to invoice Buyer for importation costs of repair/replacement parts when product purchased in one
country is submitted for repair in another country.
Fluke's warranty obligation is limited, at Fluke's option, to refund of the purchase price, free of charge repair, or replacement of a defective product which
is returned to a Fluke authorized service center within the warranty period.
To obtain warranty service, 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 difficulty, postage and insurance prepaid
(FOB Destination). Fluke assumes no risk for damage in transit. Following warranty repair, the product will be returned to Buyer, transportation prepaid (FOB
Destination). If Fluke determines that failure was caused by neglect, misuse,
contamination, alteration, accident, or abnormal condition of operation or handling, including overvoltage failures caused by use outside the product’s specified rating, or normal wear and tear of mechanical components, Fluke will provide an estimate of repair costs and obtain authorization before commencing
the work. Following repair, the product will be returned to the Buyer transportation prepaid and the Buyer will be billed for the repair and return transportation
charges (FOB Shipping Point).
THIS WARRANTY IS BUYER'S SOLE AND EXCLUSIVE REMEDY AND IS IN
LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY
OR FITNESS FOR A PARTICULAR PURPOSE. FLUKE SHALL NOT BE
LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
DAMAGES OR LOSSES, INCLUDING LOSS OF DATA, ARISING FROM ANY
CAUSE OR THEORY.
Since some countries or states do not allow limitation of the term of an implied
warranty, or exclusion or limitation of incidental or consequential damages, the
limitations and exclusions of this warranty may not apply to every buyer. If any
provision of this Warranty is held invalid or unenforceable by a court or other
decision-maker of competent jurisdiction, such holding will not affect the validity
or enforceability of any other provision.
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
Table of Contents
Title Page
Introduction ............................................................................... 1
Box Contents ............................................................................. 2
Safety Information ..................................................................... 2
Instrument Compatibility ........................................................... 4
Electrical Specifications ............................................................ 5
Mechanical Specifications ......................................................... 7
Typical Response Curves .......................................................... 8
Operation ................................................................................... 11
Measurement Considerations ..................................................... 13
Maintenance ............................................................................... 13
Cleaning and Storage ............................................................. 13
Replacement Parts ..................................................................... 14
Service ....................................................................................... 14
Contacting Fluke ........................................................................ 14
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Users Manual
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List of Tables
Table Title Page
1. Symbols ................................................................................... 4
2. Input Ranges and Accuracy ..................................................... 6
3. Maximum Phase Shift ............................................................. 6
List of Figures
Figure Title Page
1. i1000s AC Current Probe ........................................................ 2
2. Typical Response Curves ........................................................ 8
3. ScopeMeter Setups .................................................................. 12
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Users Manual
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Fluke i1000s
AC Current Probe
Introduction
The Fluke i1000s is a clamp-on ac current probe designed to expand
oscilloscope applications in industrial and power environments. The Current
Probe (shown in Figure 1) provides the following features:
• Ideal for measuring distorted current waveforms and harmonics.
• Allows accurate measurement of currents from 100 mA to 1000 A rms,
5 Hz to 100 kHz without breaking into the circuit.
• A passive filter eliminates noise and ring on rapidly rising di/dt wave-
form, ensuring accurate screen displays.
• Connects directly to an oscilloscope through a reinforced coaxial cable
and an insulated BNC connector.
• Rated for 600 V ac circuits of Measurement Category III,
Pollution Degree 2. (See "Safety Information" for definitions.)
Warning
Read "Safety Information" before using the probe.
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i1000s
Users Manual
Tactile Barrier
Figure 1. i1000s AC Current Probe
aef01f.eps
Box Contents
The shipping container includes the probe, this users manual, a Quick
Reference Card, and a product registration card.
Safety Information
Read the following safety information carefully before attempting to operate or
service the Current Probe.
In this manual, a
hazard(s) to the user. A Caution identifies conditions and actions that may
damage the Current Probe. International electrical symbols used are explained
in Table 1.
2
Warning identifies conditions and actions that pose
AC Current Probe
Safety Information
Warning
• To avoid injury and ensure safe operation of the probe,
follow all safety precautions detailed in this manual.
• Never use the probe on circuits rated higher than 600 V
in measurement category III (CAT III). Use extreme
caution when clamping around uninsulated conductors
or bus bars.
• CAT III equipment is designed to protect against
transients in equipment in fixed equipment
installations, such as distribution panels, feeders and
short branch circuits, and lighting systems in large
buildings.
• Do not hold the clamp anywhere beyond the tactile
barrier. See Figure 1.
• 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.
• Use caution when working with voltages above 60 V
dc, 30 V ac rms or 42 V ac peak. Such voltages pose a
shock hazard.
• Check the magnetic mating surfaces of the probe jaws;
these should be free of dirt, dust, rust, or other foreign
matter.
• Do not use a probe which is cracked, damaged, or has
a defective cable. Such probes should be made
inoperative by taping the clamp shut to prevent
operation.
• Do not alter the Product and use only as specified, or
the protection supplied by the Product can be
compromised.
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Table 1. Symbols
WARNING. HAZARDOUS VOLTAGE. Risk of electric shock.
WARNING - RISK OF DANGER. Consult user documentation.
Application around and removal from uninsulated hazardous live
conductors is permitted.
Double Insulated
Conforms to European Union directives.
Certified by Underwriters Laboratories to North American safety
standards.
Measurement Category III is applicable to test and measuring
circuits connected to the distribution part of the building’s lowvoltage MAINS installation.
Earth
AC (Alternating Current)
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.
The i1000s complies with IEC Publication 61010-2-032. Follow all warnings
to ensure safe operation.
Use of this equipment in a manner not specified herein may impair the
protection provided by the equipment.
Instrument Compatibility
The i1000s is compatible with any oscilloscope that accepts a standard
BNC connector and has an input impedance of greater than or equal to 1 MΩ
in parallel with a maximum of 47 pF. To achieve the stated accuracy, use the
i1000s with an oscilloscope having an accuracy of ± 2 % or better. The i1000s
may be used with digital multimeters (DMMs) if a BNC to banana jack adapter
is used.
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AC Current Probe
Electrical Specifications
Electrical Specifications
Current Range: 100 mA to 1000 A ac rms (2000 A instantaneous peak).
Warning
To avoid potential thermal burns from the jaws when
measuring currents equal to or greater than 800 A ac rms
in the ambient temperature range of 30 to 50° C (86 to
122° F), limit the measurement cycle to a measurement
time of 5 minutes or less, followed by a cooling time of
15 minutes or more.
Output Signal: mV output signal (2 V peak max). 3 ranges, switch selectable
on handle.
Influence of Temperature: < 0.1% per °C for temperatures from -10 to
18° C and from 28 to 50° C.
Usable Frequency Range: 5 Hz to 100 kHz. (See Appendix A for typical
response curves.)
Load Impedance
Required instrument input impedance: > 1 MΩ in parallel with up to 47 pF
di/dt max: 10 A/µs
Ampere Second Product:
Rise or fall time:
1
To avoid the inaccurate readings that result from core saturation, the Ampere
Second Product should not be exceeded. If the average amplitude times the
duration of a given current pulse does not exceed 1.0 Ampere Second
Product, the probe will be linear and specified accuracies will apply.
< 40 µs
Safety
General .......................... IEC 61010-1: Pollution Degree 2
Measurement ................. IEC 61010-2-032 CAT III 600 V
Electromagnetic Compatibility (EMC)
International .................... IEC 61326-1: Portable Electromagnetic Environment
Group 1: Equipment has intentionally generated and/or uses conductivelycoupled 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.
1
1.0
CISPR 11: Group 1, Class A
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i1000s
Users Manual
Emissions that exceed the levels required by CISPR 11 can occur when the
equipment is connected to a test object.
Korea (KCC) ................... Class A Equipment (Industrial Broadcasting &
Class A: Equipment meets requirements for industrial electromagnetic wave
equipment and the seller or user should take notice of it. This equipment is
intended for use in business environments and not to be used in homes.
USA (FCC) ..................... 47 CFR 15 subpart B. This product is considered an exempt
Switch Position Input Range Accuracy*
Communication Equipment)
device per clause 15.103.
Table 2. Input Ranges and Accuracy
100 mV/A 100 mA to 10 A
3% of reading ± 10 mV
(20 A instantaneous peak)
10 mV/A 100 mA to 100 A
2% of reading ± 5 mV
(200 A instantaneous peak)
1 mV/A 1 A to 1000 A
1% of reading ± 1 mV
(2000 A instantaneous peak)
*Accuracies and Phase Shifts are given for 48 Hz to 65 Hz; an ambient
temperature of 23° C ± 5° C, relative humidity of 20 to 75%, conductor
centered in jaw window, no DC component, no external current carrying
conductor, magnetic field < 40 A/m and 1 MΩ/47 pF oscilloscope or meter
input impedance.
Table 3. Maximum Phase Shift
100 mV/A 10 mV/A 1 mV/A
0.1 to 0.5 A NA 0.1 to 5 A N/A 1 to 50 A N/A
0.5 to 2 A NA 5 to 20 A 15° 50 to 200 A 3°
2 to 10 A 15° 20 to 100 A 10° 200 to 1000 A 2°
Accuracies and Phase Shifts are given for 48 Hz to 65 Hz; an ambient
temperature of 23° C ± 5° C, relative humidity of 20 to 75%, conductor
centered in jaw window, no DC component, no external current carrying
conductor, magnetic field < 40 A/m and 1 MΩ/47 pF oscilloscope or meter
input impedance.
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AC Current Probe
Mechanical Specifications
Working Voltage (Clamp jaws to Ground):
600 V ac rms on Measurement Category III, Pollution Degree 2 circuits
per EN/IEC 61010-1 and EN/IEC 61010-2-032.
Float Voltage (Output cable and connector to Ground):
600 V ac rms on Measurement Category III, Pollution Degree 2 circuits
per EN/IEC 61010-1 and EN/IEC 61010-2-032.
Influence of Adjacent Conductor:
< 1.0 mA/A ac
Influence of Conductor Position in Jaw Opening:
< 0.5 % of reading from 10 Hz to 5 kHz
< 4.0 % of reading from 5 to 40 kHz
< 10.0 % of reading from 40 to 100 kHz.
Operating Temperature:
-10 °C to +50 °C (14 °F to 122 °F); 100 mA to 800 A ac rms continuous,
800 to 1000 A ac rms for 5 minutes On, 15 minutes Off.
-10 °C to +30 °C (14 °F to 86 °F); 100 mA to 1000 A ac rms continuous
Storage Temperature:
-40 °C to +71 °C (-40 °F to +160 °F)
Relative Humidity:
0 % to 85 % (10 °C to 30 °C); 0 % to 75 % (30 °C to 40 °C); 0 % to 45 %
(40 °C to 50 °C)
Altitude:
Operating: 2000 m
Mechanical Specifications
Maximum Cable Diameter:
2.13 inches (54 mm)
Dimensions:
4.37 in. x 8.50 in. x 1.77 in. (111 mm x 216 mm x 45 mm)
Weight:
1.21 lbs (550 g)
Output Cable:
63 inches (1.6 m) PVC-insulated lead with insulated BNC connector.
Enclosure Protection:
IP 40 (IEC 529)
Drop Test:
1 meter per IEC 68-2-32
Mechanical Shock:
100 G per IEC 68-2-27.
Vibration:
5/55/5 Hz, no less than 0.25 mm per IEC 68-2-6.
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i1000s
Users Manual
Typical Response Curves
Typical response curves are shown in Figure 2.
1 mV/A Range
1.00
0.00
-1.00
-2.00
-3.00
-4.00
-5.00
@ 10 A
@ 50 A
10 100 1000 10,000 100,000
Frequency (Hz)
8
5.00
0.00
-5.00
-10.00
-15.00
-20.00
-25.00
-30.00
-35.00
-40.00
@ 10 A
@ 50 A
10 100 1000 10,000 100,000
Frequency (Hz)
Figure 2. Typical Response Curves
aef07f.eps
AC Current Probe
Typical Response Curves
10 mV/A Range
5.00
0.00
-5.00
-10.00
-15.00
-20.00
-25.00
-30.00
10.00
0.00
-10.00
-20.00
-30.00
-40.00
-50.00
-60.00
-70.00
@ 1 A
@ 5 A
10 100 1000 10,000 100,000
Frequency (Hz)
@ 1 A
@ 5 A
10 100 1000 10,000 100,000
Frequency (Hz)
Figure 2. Typical Response Curves (cont)
aef08f.eps
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Users Manual
100 mV/A Range
5.00
0.00
-5.00
-10.00
-15.00
-20.00
-25.00
-30.00
-35.00
-40.00
-45.00
40.00
30.00
20.00
10.00
0.00
-10.00
-20.00
-30.00
-40.00
-50.00
@ 0.1 A
@ 0.5 A
10 100 1000 10,000 100,000
Frequency (Hz)
@ 0.1 A
@ 0.5 A
10 100 1000 10,000 100,000
Frequency (Hz)
10
Figure 2. Typical Response Curves (cont)
aef09f.eps
AC Current Probe
Operation
Operation
Use the following procedure to make a measurement:
1. Connect the i1000s Current Probe to the desired input channel on the
oscilloscope.
2. On the Current Probe, select the least sensitive range (1 mV/A). See
Figure 1 for selector switch location.
3. On your oscilloscope, select an appropriate range. Use a 1:1 probe setting.
Note
If using the Fluke ScopeMeter 123, use this procedure for step 3:
1. Press
2. When the MEASUREMENTS screen appears, select AMP…
and ENTER.
3. When ENTER is pressed, the AMPERE PROBE screen
appears.
4. Select the appropriate range (i.e. 1 mV/A).
4. Clamp the probe around the conductor to be measured, and observe the
current waveform on your oscilloscope display.
If using the Fluke 123 ScopeMeter, disregard the next step.
5. Calculate the Amps-per-division on your oscilloscope by dividing the
vertical scale (mV or V per division) by the i1000s switch position
(1, 10, or 100 mV/A). For example:
20 mV per division = 20 A per division
1 mV/A
Setups using the Current Probe and a ScopeMeter are shown in Figure 3.
(shown in Figure 3).
Note
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4
2
1000
100
3
10
1
CHANNEL A
12
Figure 3. ScopeMeter Setups
aef02f.eps
AC Current Probe
Measurement Considerations
Measurement Considerations
Observe the following guidelines for positioning the Current Probe jaws:
• Carefully move the probe to center the conductor inside the jaws.
• Make sure the probe is perpendicular to the conductor.
• If possible, avoid measurements close to other current-carrying
conductors.
On the Current Probe, the 1 mV/A range offers the best accuracy and least
phase shift. When using the 1 mV/A probe range, use the “volts per division”
adjustment on your oscilloscope for best display results.
Note
Although it is possible to change the range on the current probe
without removing the probe from the current carrying conductor,
remember not to exceed the permissible peak ratings. The peak
ratings by range are: 20 A peak @ 100 mV/A, 200 A peak @ 10 mV/A
and 2000 A peak @ 1 mV/A.
Maintenance
Before each use, assure continued safety of the probe by inspecting it for
cracks or missing portions of the insulating cover and for loose or weakened
components. Pay particular attention to the insulation surrounding the probe
jaws. Any probe that fails this inspection should be made inoperative by taping
the probe shut to prevent unintended operation.
Cleaning and Storage
Periodically wipe the case with a damp cloth and detergent; do not use
abrasives or solvents. Open the jaws and wipe the magnetic pole pieces with a
lightly oiled cloth. Do not allow rust or corrosion to form on the magnetic core
ends.
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Users Manual
Replacement Parts
When requesting replacement parts, use the following part numbers.
• Cable, 600 V rms, Safety Insulated: 935036
• Fluke i1000s Quick Reference Card: 1575200
• Fluke i1000s Calibration Manual: 1574933
Service
For service, pack the Current Probe securely in its original shipping container
and forward it, postage paid, to the nearest service. Include a description of the
malfunction. Fluke assumes no responsibility for damage in transit.
Contacting Fluke
For application or operation assistance on Fluke products or to contact Fluke,
call one of the following telephone numbers:
USA: 1-888-99-FLUKE (1-888-993-5853)
Canada: 1-800-36-FLUKE (1-800-363-5853)
Europe: +31 402-678-200
Japan: +81-3-3434-0181
Singapore: +65-738-5655
Anywhere in the world: +1-425-446-5500
Or, visit Fluke's Web site at www.fluke.com.
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