Fluke i800 Manual de usuario
PN 2842289
June 2007 Rev.1, 8/08
©2007-2008 Fluke Corporation. All rights reserved. Product
specifications are subject to change without notice. Printed in
France.
®
i800
AC Current Clamp
Instruction Sheet
Introduction
The i800 AC Current Clamp, the Clamp, has been designed for use
with multimeters, recorders, power analyzers, safety testers, etc., for
accurate non-intrusive ac current measurement.
Using the latest transformer technology, the Clamp measures
currents from 100 mA to 800 A.
The Clamp complies with the safety standards EN61010-2-032 for
input and output circuits.
Symbols
The table below lists the symbols used on the Clamp 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. See manual.
XHazardous Voltage. Risk of electric shock.
TDouble insulation.
,Application around and removal from HAZARDOUS LIVE
conductors is permissible.
)Conforms to Canadian Standards Association.
PComplies with the relevant European standards.
;Conforms to Australian standards.
CAT III
Equipment 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.
i800 English Instruction Sheet
Page 2
Safety Instructions
Please read this section carefully. It will make you familiar with the
most important safety instructions for handling the Clamp. 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 Clamp or the test instruments.
WX Warning
The Clamp may only be used and handled by qualified
personnel. To avoid electric shock or personal injury,
follow these precautions:
•Do not use the Clamp if damaged. Always
connect to display device before it is installed
around the conductor.
•If the Clamp is not used as specified by the
manual, protection provided by the Clamp may
be impaired.
•Do not clamp around a conductor before
connecting clamp output to the measuring
equipment.
•Do not disconnect the output from the measuring
equipment while the Clamp is still around a
conductor.
•Connect the Clamp output to measuring
equipment having safety receptacles.
•Do not use prior to consulting local and national
safety codes and use of protective equipment is
recommended.
•Do not hold the Clamp beyond the tactile barrier.
•Before each use, inspect the Clamp. Look for
cracks or missing portions of the housing or
output cable insulation. Also look for loose or
weakened components. Pay particular attention
to the insulation surrounding the jaws. Open and
close the Clamp, noting detent action indicating
proper mechanical operation of SIACTM anti short
circuit feature.
•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.
•Do not use Clamp in wet environments or in
locations that hazardous gases exist.
i800 English Instruction Sheet
Page 3
SIAC™ (Security Internal Anti Short
Circuit)
SIAC™ (Security Internal Anti Short Circuit), patent applied for,
provides protection against short circuits between adjacent primary
conductors when clamped around conductors. This mechanism
ensures that the magnetic circuit separates at the bottom of the jaw
prior to the jaw opening at the top.
A detent action produced by SIAC™ can be felt when opening the
jaws. This detent action should always be present in use. If the jaws
open smoothly, service is indicated and the Clamp should be
inspected at the nearest Fluke Service Center. See “Contacting
Fluke”.
Operating Instructions
WX Warning
To avoid electric shock or personal injury when using
the Clamp:
•Ensure that your fingers are behind the tactile
barrier as shown in Figure 1.
•Do not use the Clamp if any part, including the
lead and connector(s), appears to be damaged or
if a malfunction of the instrument is suspected.
•Clamp around the current carrying conductor
ensuring good contact between the jaw faces.
Center the cable between the Clamp jaws.
Note
The arrow on the labels shows the direction of the current
flow from the source to the load. In order to have a correct
phase relationship between the primary current and the
clamp output, care must be taken regarding the direction
of current flow.
1. Connect the Clamp output connectors between the
common and the appropriate current input jack of a
suitable meter, then switch the meter on.
2. Select a 20 mA ac or greater current range.
3. Clamp the probe around the current-carrying conductor to
be measured (see Figure 1). Make sure the probe jaws
are tightly closed around the conductor.
i800 English Instruction Sheet
Page 4
Note
Wire size and the position of the wire within the probe
jaws does not affect measurement accuracy.
4. Multimeter readings displayed in milliamps (mA) can be
read directly as amperes of conductor current. Readings
displayed in amperes (A) must be multiplied times 1000 to
obtain the amperes of conductor current.
CAT
CAT
RANGEHOLD
MINMAX
mA
mA
320 A
Tactile
Barrier
Single
Current Carrying
Conductor
eyd001f.eps
Figure 1. Current Measurement
Meter Readings
When the Clamp is connected to a compatible current meter and
clamped around a single current-carrying conductor, the meter
reading will be one 1000th of the actual current in the conductor. For
example, a 5 A input current will be transformed into a 5 mA output
current (see Figure 1). When measuring current in an ac line cord,
the jaws should be clamped around only one conductor (the black or
hot wire in a three wire cord). If the jaws are clamped around both
current carrying conductors, the currents will cancel and produce a
zero reading. If the probe is clamped around two wires carrying
current in the same direction, the sum will be read. Reversing one of
the wires causes the difference to be read.
Low-Level Current Measurement
The Clamp is specified to measure currents of 100 mA or greater.
Currents less than 100 mA will produce meter readings that are
below the true value. Low-level currents can be measured by
looping the input wire through the jaws so that the sum of the current
through the jaws is greater than 100 mA. The actual current can
then be calculated by dividing the meter reading by the number of
turns looped through the jaws. For example, to measure a current of
40 mA (0.04 A), form a 10-turn loop and clamp the jaws around all
10 turns. The meter reading will be 0.4 mA, which corresponds to a
primary current of 0.4 A (400 mA). The actual current in the
conductor is 400 mA divided by 10-turns, or 40 mA.
Note
The probe output is equal to 1 mA per amp of primary
current. Since the primary current is equal to 400 mA
(40 mA x 10 and the probe divides it by 1000) the meter
reading will be 0.4 mA, which represents 400 mA.
i800 English Instruction Sheet
Page 5
Maintenance
Performance Test
Verify Probe accuracy by measuring the output of a 20 A (±0.15 %),
60 Hz current source (Fluke 5520A or equivalent). When used with a
compatible DMM with ±0.35 %, or better, ac current accuracy (Fluke
8808A or equivalent), the probe should measure 20.000 A ±0.400 A
(20.000 mA, ±0.400 mA). There are no calibration adjustments in
the Clamp.
Cleaning
Clean the case periodically by wiping it with a damp cloth and
detergent. Do not use abrasive cleaners or solvents. Do not
immerse the Clamp in liquids.
Contacting Fluke
To contact Fluke, call:
USA: 1-888-993-5853
Canada: 1-800-363-5853
Europe: +31 402-675-200
Japan: +81-3-3434-0181
Singapore: +65-738-5655
Anywhere in the world: +1-425-446-5500
Or, visit Fluke's website at www.fluke.com.
To register your product, visit http://register.fluke.com.
Specifications
Electrical Characteristics
Specified Current Range 100 mA to 800 A rms
Overload Capability for 1 Hour,
33 % Duty Cycle 1500 A rms (50/60 Hz)
Output Sensitivity 1 mA / A
Turns Ratio 1000:1
Accuracy ±2 % of reading, 50 Hz to
1 kHz, ±3 % of reading
(typical), 30 Hz to 50 Hz or
1 kHz to 10 kHz (Maximum
load ≤10 Ω)
Load Impedance ≤20 Ω
Phase Shift at 2 kHz ±1 degree typical
Bandwidth 30 Hz to 10 kHz (-3 dB)
Working Voltage
(see Safety Standards section) 600 V ac rms or dc
General Characteristics
Maximum Conductor Size 54 mm diameter
Output Connection 4 mm safety plugs
Operating Temperature Range -10 to +55 °C
Storage Temperature Range -40 to +70 °C
i800 English Instruction Sheet
Page 6
Operating Humidity 15 % to 85 %
(non condensing)
Weight 650 g
Cable Length 1.6 meters
Overload Conditions Operation above 1200 A
should be limited to
frequencies below 1 kHz
Duty Cycle 1500 A at 50 / 60 Hz for
1 hour, 33 % duty cycle
(20 min ON, 40 min OFF).
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 clamp on uninsulated conductors is limited to 600 V ac
rms or dc and frequencies below 1 kHz.
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.
EMC Standards
EN 61326 :1998 +A1, A2, & A3
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
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