Fluke i3000s Flex Series User manual

®
i3000s
AC Current Clamp
Instruction Sheet
Introducing the i3000s
The i3000s is a clamp-on AC Current Clamp for use with
oscilloscopes and multimeters with banana input using the supplied
Dual Banana to BNC Adapter. The clamp is optimized for
measurement on power distribution systems.
Unpacking
The following items should be included in your Current Clamp box:
•Current Clamp
•Dual Banana to BNC Adapter (model PM9081/001)
•Instruction Sheet (this paper)
Check the contents of the shipping box for completeness. If
something in the box has been damaged or missing, contact your
distributor or the nearest FLUKE sales or service office immediately.
Safety Information
Read First: Safety Information.
To ensure safe operation and service of the
current clamp, follow these instructions:
•Read the operating instructions before use and follow all
safety instructions.
•Use the Current Clamp only as specified in the operating
instructions, otherwise the clamp’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.
•Do not hold the Current Clamp anywhere beyond the
tactile barrier, see Figure 8.
•Before each use, inspect the Current Clamp. Look for
cracks or missing portions of the clamp housing or output
cable insulation. Also look for loose or weakened
components. Pay particular attention to the insulation
surrounding the jaws.
•Check the magnetic mating surfaces of the clamp jaws;
these should be free of dust, dirt, rust and other foreign
matter.
•Never use the clamp on a circuit with voltages higher than
600 V CAT III.
−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.
•Use extreme caution when working around bare
conductors or bus bars. Contact with the conductor could
result in electric shock.
•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.
Symbols
May be used on HAZARDOUS LIVE conductors.
Product is protected by double insulation.
Risk of Danger. Important information. See
Instruction Sheet.
Risk of Electric Shock.
Conforms to relevant European standards.
Earth ground
Specifications
SAFETY
Input jaws &
Output float voltage
Complies with European
standards EN/IEC 61010-1
2nd Edition & EN/IEC 61010-
02-032 for 600V CAT III,
pollution degree 2.
CE Conformity EN/IEC 61010-02-032
ELECTRICAL SPECIFICATIONS
All Electrical Specifications are valid at the following reference
conditions:
•Ambient temperature 23±3°C (73±3°F)
•Relative Humidity 0 to 85%
•Frequency 48 to 65 Hz
•Continuous external field < 40 A/m
•Load impedance 1 M
Ω // 47 pF
•The current may not contain any DC component
•No influence from adjacent currents
•The conductor must be centered within the jaw aperture
Current Ranges
30A 300A 3000A
Measuring range 1 to 30A ac 1 to 300A ac 1 to 3000 A ac
Crest factor * up to 3 up to 3 up to 3
Maximum non-
destructive current:
•continuous 36A 360A 2400A
•30min.+30min.
stop
2800A
•5min.+30min.
stop
4000A
Output signal 10 mV/A 1 mV/A 0.1 mV/A
Basic accuracy 2% of reading
+ 0.1A
2% of reading
+ 0.5A
2% of reading
+ 2A
Additional errors:
•with
temperature
(-10 to +50°C)
0.02%/°C 0.02%/°C 0.02%/°C
•with position of
conductor in
the clamp
window
1% + 0.1A 1% + 0.1A 1% + 0.1A
•with adjacent
conductor
0.005A/A 0.005A/A 0.005A/A
•with frequency
(10Hz to 100
kHz)
See Figure 1 See Figure 2 See Figure 3
Phase shift 20° @ 2A
10° @ 8A
5° @ 30A
See Figure 4
3° @ 20A
1.5° @ 80A
1° @ 300A
See Figure 5
3° @ 200A
1.5° @ 800A
1° @ 3000A
See Figure 6
* This is the maximum permissible ratio between the peak value
of a superimposed transient and the ac rms value.
Bandwidth (-3dB)
(see Figure 7 for derating)
10 Hz to 100 kHz
GENERAL
Clamp Dimensions 310 x 120 x 48 mm
(12.2 x 4.7 x 1.9 in)
Weight 1200 g (42.3 oz)
Cable length 2.1 m (82.6 in)
Maximum conductor size ∅64 mm (2.5 in)
Maximum Jaw Opening 90 mm (3.5 in)
Temperature
Operating
Non-operating
-10 to +50°C (+14 to +122°F)
-40 to + 85°C (-40 to +185°F)
Relative Humidity
Operating
Non-operating
0 to 85%, up to +35°C (+95°F)
0 to 75%, up to +50°C (+122°F)
0 to 85%, up to -10°C (+14°F)
0 to 75%, up to +85°C (+185°F)
Altitude
Operating
Non-operating
to 2000 m (6500 ft)
to 12000 m (40000 ft)
FREQUENCY RESPONSE
30A Range
Figure 1. Frequency Response @ 10A
300A Range
Figure 2. Frequency Response @ 10A
3000A Range
Figure 3. Frequency Response @ 100A
October 1997, Rev.3, 08/05
© 1997 -2005 Fluke Corporation.
All rights reserved.
Printed in the Netherlands
All product names are trademarks
of their respective companies.

PHASE SHIFT
30A Range
Figure 4. Phase Shift @ 10A
300A Range
Figure 5. Phase Shift @ 10A
3000A Range
Figure 6. Phase Shift @ 100A
Figure 7. Maximum Current as a Function of the Frequency
Instrument Compatibility
The i3000s is compatible with any Fluke ScopeMeter test tool,
Power Harmonics Analyzer, Oscilloscope, Multimeter, or other
voltage measurement device that has the following features:
•BNC input connector. The Dual Banana to BNC Adapter
included in the package, can be used to connect to standard
inputs on multimeters. For the 120 series ScopeMeters, use
the BB120 Shielded Banana to BNC Adapter.
•Input accuracy of 2% or better to take full advantage of the
accuracy of the Current Clamp.
•Input impedance of greater than or equal to 1 MΩ, and for full
bandwidth and accuracy, a maximum input capacity of 47 pF.
•A passband of more than four times the frequency of the
waveform to be measured.
Using the Current Clamp
To use the Current Clamp, follow these instructions:
1. Connect the i3000s Current Clamp to the desired input on the
measuring instrument. When you are using a multimeter, use
the Dual Banana to BNC Adapter (PM9081/001) to connect the
Current Clamp to the input. (See Figure 8.)
2. On the Current Clamp, select the least sensitive range (0.1
mV/A).
3. Select the appropriate clamp sensitivity on your ScopeMeter
test tool or oscilloscope.
4. Position the Current Clamp perpendicularly and centered
around the conductor.
Make sure that the arrow marked on the clamp jaw points
toward the correct orientation for correct phase display on the
oscilloscope. (See Figure 9.)
Use the markings on the jaws to center the conductor.
5. Observe the current value and waveform on the instrument’s
display.
6. If desired, select a lower range on the Current Clamp and set
the corresponding sensitivity (mV/A setting) on the
ScopeMeter test tool or oscilloscope.
If the corresponding sensitivity is not available on the ScopeMeter
or oscilloscope, select the closest setting and calculate the actual
current value from the displayed.
Example1: Current Clamp set to 0.1 mV/A, ScopeMeter test tool
set to 1 mV/A.
The ScopeMeter test tool displays 50A.
The real current value can be calculated with the following formula:
Actual current
display value sensitivity instrument
sensitivity Current Clamp
mV A
mV A A
=
×=×=50 1
01 500
/
./
Example 2: Current Clamp set to 10 mV/A. Multimeter displays
0.285V.
Actual current
display value
sensitivity Current Clamp
V
mV A
mV
mV A A
=
===
0285
10
285
10 28 5
.
//
.
V
COM
V
Ω
ST8386_190
Figure 8. Measurement Setup
Warning
If the sensitivity setting (mV/A) of the ScopeMeter test
tool or oscilloscope does not correspond with the
setting of the Current Clamp, the instrument may
display a much lower current than the actual value.
This may cause misinterpretation and as a
consequence incorrect handling.
Figure 9. Orientation of the Current Clamp
Measurement Considerations
Observe the following guidelines for positioning the Current Clamp
Jaws:
•Center the conductor inside the clamp jaws.
•Make sure the clamp is perpendicular to the conductor.
•Make sure that the arrow marked on the jaw of the Current
Clamp points toward the correct direction.
Observe the following guidelines when making measurements:
•If possible, avoid measurements close to other current-carrying
conductors.
•On the Current Clamp, select the most appropriate range for
the current being measured to get the best accuracy.
Maintenance
Before each use, assure continued safety by inspecting the clamp.
Look for cracks or missing portions of the clamp housing and output
cable insulating cover and for loose or weakened components. Pay
particular attention to the insulation surrounding the clamp jaws. If a
clamp fails this inspection, tape it shut to prevent unintended
operation. A clamp under warranty will be promptly repaired or
replaced (at Fluke's discretion) and returned at no charge.
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.
If your Current Clamp does not work
If the Current Clamp does not perform properly, use the following
steps to help isolate the problem:
•Inspect the jaw mating surface for cleanliness. If any foreign
material is present, the jaws will not close properly and errors
will result.
•Verify that the function selection on the ScopeMeter test tool or
oscilloscope is correct, i.e., the display vertical resolution is not
too low or too high.
LIMITED WARRANTY & 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 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,
send your defective product to the nearest Fluke Authorized 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 Fluke Industrial B.V.
P.O. Box 9090 P.O. Box 90
Everett WA 7600 AB Almelo
98206-9090, USA The Netherlands
SERVICE CENTERS
To locate an authorized service center,
visit us on the World Wide Web:
http://www.fluke.com
or call Fluke using any of the phone numbers listed below:
[phone] in U.S.A. and Canada
[phone] in Europe
[phone] from other countries
Tactile barrier