Fluke 80i-600 User manual

FL.UKE~
Instruction Sheet
80i-600
AC Current Probe
INTRODUCTION
The Model 80i-600 is aclamp-on ac current probe designed
to extend the current me<lsuring
c<lp<lbility of an ac current
meter to 600 amperes. Aclamp-on, 1000-turn coil designed
into the probe allows measurements to be made without
breabng the circuit under test. The coil serves as the second-
ary of acurrent transformer. Thecurrentcarryingconductor
being measured serves as the primary. Because
of ahigh
efficiency, quadrature type
of winding used. wire size ,md
the position of the wire within the prohe jaws does not effect
accuracy.
SPECIFICATIONS
Input Current Range: IA to 600A
Output: Imilli<lmp per ampere of input current (1 mAl A)
Accuracy: Accuracy: ±Y; of rcadiJ)~. :,U HI tn I KHI.
±39'0 of reading (typical). 30 Hz to 5U HI or I KHI to 10 KHz.
Working Voltage: 750Y ac nns maximum
Maximum Conductor Size: 50.8 nml (2 inch.)
Shunt (load) Resistance: less than 12 ohms at multim-
eter input to maintain specified accuracy
Typical Bandwidth: -10% at 10 Hz and 50 kHz (lA, 400
Hz reference, excludes multimeter response)
Usable Current Range: O.I{\. to 2000A, 5seconds Ill<lxi-
mum above 600A
Safety: Protection Class Class II as defined in IEC 348 and
ANSI
09.5
MULTIMETER COMPATIBILITY
The 80i-600 is compatible with any multimeter capable of
reading ac current equal to 111000 of the current to be
measured. To take full advantage of the probe's accuracy, a
multimeter ac current accuracy
of ±O.75% or better is
recommended. Avoltmeterfitted with an external shuntwill
qualify as asuitable current meter. However, to ensure the
probe'saccuracy, the shunt(ormultimeterinput resistance in
ac current) should be less than 12 ohms. This requirement is
met on Fluke
DMM' swhen using acurrent range of 20 mA
or greater.
Advanced Test Equipment Rentals
www.atecorp.com 800-404-ATEC (2832)
®
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When making ameasurement, the current-carrying conduc-
tor is not broken, and remains electrically isolated from the
current meter input terminals. As aresult, the current meter's
INPUT LO or COM terminal may be either floated (iso-
lated)
or grounded.
METER READINGS
When the 80i-600is connected to acompatiblecurrentmeter
and
clamped aroundasinglecurrent-carryingconductor, the
meter reading will be one 1 DOOth of the actual current in the
conductor. For example, a5-ampere (A) input current will
be transformedintoa 5 milliampere (rnA) outputcurrent(see
Figure 1).
When measuring current in ,U1 ac line cord, the jaws should
be
clamped aroundonly one conductor(the black or hot wire
in athree wire cord).
If the jaws are clamped around both
current carrying conductors.
tJle currents will cancel and
produce azero reading.
If the probe is clamped around two wirescarryingcurrent in
thesamedirection. the sum will be read. Reversingone of the
wires causes the difference to be read.
LOW-LEVEL CURRENT MEASUREMENTS
The 80i-600 AC Current Probe is specified to measure
currents of 1A or greater. Currentsless than 1A 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
greaterthan I
A. The actualcurrentcan then be calculated by
dividing the meter reading hy the number of turns looped
through the jaws.
For example. to measure acurrent of 400 rnA (OAA). form
aIO-tum loop ,md
c1,Ullp the jaws of the 80i-600 around all
10 turns. The meterreadingwill be4 mAo whichcorresponds
to aprimarycurrent of 4A. The actual current in the conduc-
tor is 4A divided by IO-turns, or 400 rnA.
NOTE
The range selection on the meter should always
be 20 mA or greater (12 ohm shunt or lower).
Lower ranges with higher shunt values will
cause reading errors.
OPERATION
I. Connect the 80i-600 output connectors between the
common and the appropriate current input jack of a
suitable meter, then switch the meter on.
NOTE
Refer to Tab/£' Ito determine the approprinte
input jack and proper jll1lction setting for use
with aFluke handheld DMM.
2. Select a20 rnA ac or greater current range.
3. Clamp the probe around the current-carrying conduc-
tor to be measured (see Figure I).
Make sure the probe
jaws are tightly closed around the conductor.
NOTE
Wire siz.e ilnd the position of the wire Ij··ithin the
probe
jaws does not affect measurement accu-
racy.
4. Multimeter readings displayed in milliamps (mA) can
be read directly as amperes of input current. Readings
displayed in amperes (A) must be multiplied times
1000 to obtain the amperes
of input current.
SINGLE
CURRENT-CARRYING
CONDUCTOR
...---320A
320 rnA -- II 3.?lllfll
AC CURRENT FUNCTION --+----+
o
Figure 1. Typical 80i-GOO Using aTypical Meter

MAINTENANCE
Performance Test
Verify the probe accuracy by measuring the output of a20A
(±0.2%), 60 Hz current source (Fluke
51 OOB and 5220A or
equivalent). When used with acompatible DMM with ±
0.75% orbetterac currentaccuracy (Fluke 8060A orequiva-
lent), the probe should measure 20.00A ±
OAOA (20.00 mA,
±
0040 mA). No calibration adjustments are required.
Cleaning
Useasoftclothdampened in amild solution of detergentand
water to clean the 80i-600. Do not use solvents unless
absolutely necessary. Alight coating
of dripless oil on the
jaw surfaces will prevent corrosion.
Table 1. Clamp/Meter Setup Guide
FLUKE
MODEl
INPUT JACK FUNCTION
(for red lead)
21 10A (limited to 320A)
A-
23.
300 mA
A-
21 Series II, (10A on Model 23. Series
23 Series
II II Models 21 & 23
for> 320A)
25,27
mA!lA
mNA-
75,77, 300 mA
A-
75 Series II,
(10A on all Models 75
77 Series II
&77 for> 320A)
29,79 Series
II
40 mA
A-
(10A for::: 40A)
83,85,87
mA!lA
mNA-
8060A,8062A A
AC-,A'
8020A,B020B, mA
AC-, mA'
8021 B,8022A,
B024A,B024B,
8026B
•20mA range for up to 20A
200mA range for up to 200A
2000mA range for up to 600A