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AC/DC CURRENT PROBE
J93
ENGLISH
User Manual
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Thank you for purchasing an AEMC® Current Probe Model J93.
For best results from your instrument and for your safety, read the enclosed
operating instructions carefully and comply with the precautions for use. These
products must be only used by qualied and trained users.
WARNING, risk of DANGER! The operator must refer to these instructions whenever
this danger symbol appears.
CAUTION! Risk of electric shock. The voltage at the parts marked with this symbol
may be dangerous.
Application or withdrawal authorized on conductors carrying dangerous voltages.
Type A current sensor as per IEC 61010-2-032.
Equipment is protected by double insulation.
Battery
Important instructions to read and to fully understand.
Useful information or tip to read.
The CE marking guarantees conformity with European directives and with regulations covering EMC.
The trash can with a line through it means that in the European Union, the product
must undergo selective disposal for the recycling of electric and electronic material,
in compliance with Directive WEEE 2002/96/EC.
Denition of Measurement Categories (CAT)
CAT IV Measurement category IV corresponds to measurements taken at the
source of low-voltage installations.
Example: power feeders, counters and protection devices.
CAT III Measurement category III corresponds to measurements on building
installations.
Example: distribution panel, circuit-breakers, machines or xed
industrial devices.
CAT II Measurement category II corresponds to measurements taken on
circuits directly connected to low-voltage installations.
Example: power supply to domestic electrical appliances and portable
tools.
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PRECAUTIONS FOR USE
These current probes comply with safety standards EN 61010-1, EN 61010-031,
and EN 61010-2-032 for voltages of 300V in Category IV or 600V Category III.
The protection obtained by the instrument can be compromised if it is used in a
way that is not recommended by the manufacturer.
■ The operator and/or the responsible personnel must carefully read and clearly
understand the various precautions to be taken in use. Sound knowledge
and a keen awareness of electrical hazards are essential when using this
instrument.
■ Do not use the clamp on networks at higher voltages or in higher categories
than those mentioned.
■ Do not use the clamp if it appears to be damaged or incorrectly closed.
■ Before each use, check the condition of the insulation on the leads and
housing. Any item of which the insulation is deteriorated (even partially) must
be set aside for repair or scrapping.
■ Always keep your ngers behind the physical safety guard.
■ All troubleshooting and metrological checks must be performed by competent
and accredited personnel.
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Table of Contents
1. INTRODUCTION .............................................................................................4
1.1 Receiving Your Shipment......................................................................4
1.2 Ordering Information .............................................................................4
1.2.1 Replacement Parts ...................................................................4
2. PRODUCT FEATURES .....................................................................................5
2.1 Description ............................................................................................5
3. OPERATION ...................................................................................................6
4. SPECIFICATIONS ...........................................................................................7
4.1 Reference Conditions ...........................................................................7
4.2 Electrical ...............................................................................................7
4.3 Variations in the Range of Use .............................................................8
4.4 Typical Curves ......................................................................................8
4.4.1 Typical Linearity Error in AC vs Current at 50Hz ......................8
4.4.2 Typical Phase Error vs Current at 50Hz ...................................9
4.4.3 Typical Linearity Error in DC vs Current ...................................9
4.4.4 Typical Amplitude Error vs Frequency ....................................10
4.4.5 Typical Phase Error vs Frequency ..........................................10
4.5 Power Supply......................................................................................11
4.6 Mechanical..........................................................................................11
4.7 Environmental .....................................................................................11
4.8 Safety..................................................................................................12
5. MAINTENANCE ............................................................................................13
5.1 Warning ..............................................................................................13
5.2 Cleaning..............................................................................................13
5.3 Battery Replacement ..........................................................................14
5.4 Repair and Calibration ........................................................................15
5.5 Technical and Sales Assistance ..........................................................15
5.6 Limited Warranty .................................................................................16
5.7 Warranty Repairs ................................................................................16
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1. INTRODUCTION
1.1 Receiving Your Shipment
Upon receiving your shipment, make sure that the contents are consistent with the
packing list. Notify your distributor of any missing items. If the equipment appears
to be damaged, le a claim immediately with the carrier and notify your distributor
at once, giving a detailed description of any damage. Save the damaged packing
container to substantiate your claim.
1.2 Ordering Information
AC/DC Current Probe Model J93
(for use with Models 8333, 8336, 8435 & the PEL Series)
Includes a soft carrying case, 9V battery, velcro fastener, set of 12 color-coded ID markers
and user manual.
1.2.1 Replacement Parts
Soft Carrying Case ...........................................................................Cat. #2139.72
........... Cat. #2140.49
Set of 12 Color-coded Input ID Markers ........................................... Cat. #2140.45
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2. PRODUCT FEATURES
2.1 Description
The Hall Effect Current Probe Model J93 is designed to measure DC currents up
to 5000A and AC currents up to 3500A, without opening the circuit.
The Model J93 is powered by a 9V battery.
1
2
3
4
1. Jaw Ø 2.84" (72mm)
2. 4-point CA connector with 10 ft (3m) lead
3. Safety guard
4. Battery compartment cover
5. Zero adjustment knob
6. Power ON / Low battery indicator
7. Three-position switch: ON, OFF, battery test
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ZER O
ZERO
5000 A
500A
ON
MARCH E
OFF
Stop
Test
SORTI E
300 V CAT IV
600 V CAT III
5
6
7
5
3. OPERATION
■ Set the switch to the position to check the battery status. If the battery
indicator lights, the battery must be replaced (see §5.3).
■ Set the switch to ON. The indicator lights.
■ Connect the current probe to one of
the current inputs on the device.
■ Turn the device ON.
V1 V2 V3 N
1000V CAT III 600V CAT IV
I1 I2 I3
■ Adjust the zero by watching the
display of the device and turning the
zero adjustment knob until the device
displays 0.
■ Open the jaws and clamp the
POWER & ENERGY LOGGER
ON/OFF
START/STOP
conductor carrying the current to be
measured. There must be only one
conductor in the jaws of the clamp.
■ Gently close the jaws. In order to optimize measurement quality, center the
conductor as accurately as possible in the jaws.
■ Read the measurement on the device.
■ When the measurement is over, open the clamp and withdraw the conductor.
Then disconnect the clamp from the device.
■ Turn the device and clamp OFF.
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4. SPECIFICATIONS
4.1 Reference Conditions
Quantity of influence Reference Values
Temperature 23°C ±5°C
Relative humidity 20 to 75% RH
DC signal With an AC signal of which the distortion factor is <0.1%
AC signal 45 to 65Hz with a DC signal <0.1%
Supply voltage J93: 9V ± 0.1V
External electric field Zero
External DC magnetic field
(earth’s field)
External AC magnetic field Zero
Position of the conductor centered in the probe jaws
4.2 Electrical
< 40 A/m
Measurement Range
Sensitivity 1V / 3500A
Output impedance ≥ 100kW
Frequency DC to 3kHz (-3 dB typical)
Primary
Current
(AC/DC)
Amplitude
error
(see curve
in §4.4.1)
Phase error
(see curve
in §4.4.2)
Zero adjustment: ± 200A in 25 turns
AC/DC Current Probe Model J93
50 to 100 100 to 500 500 to 2000 2000 to 3500
± 2% ± 2.5A ± 1.5% ± 2.5A ± 1% ± 1% ± 1%
4° 2° 1° 1.5°
50A to 3500Aac
50A to 5000Adc
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3500 to 5000
(DC only)
‒
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4.3 Variations in the Range of Use
Quantity of influence Range of influence Accuracy
Temperature 14° to 131°F (-10° to 55°C) < 0.7% / 18°F (10°C)
Relative humidity 10 to 90% RH < 0.7%
Frequency response DC at 2kHz See curve in §4.4.4
Phase shift DC at 2kHz See curve in §4.4.5
Position of the conductor
in the sensor
Any position
Conductor adjacent Conductor touching the jaws
1
2
< ± 2%
Rejection > 35 dB
Battery voltage J93: from 6.5 to 10V ± 2.25A typical
Remanence at 5000Adc < 2A
Earth's magnetic field < 0.5A
1: Test performed with a 40x30 mm² cable and a current of 3500A at 50Hz. The accuracy % is the ratio of
the maximum variation to the mean value.
2: Test performed with a current of 300A at 50Hz.
4.4 Typical Curves
4.4.1 Typical Linearity Error in AC vs Current at 50Hz
Error (%)
0.4
0.2
0.0
-0.2
-0.4
-0.6
-0.8
-1.0
-1.2
0 1000 2000 3000 4000
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Current (A)
4.4.2 Typical Phase Error vs Current at 50Hz
Phase (°)
-0.5
-1.5
-2.5
-3.5
0 1000 2000 3000 4000
4.4.3 Typical Linearity Error in DC vs Current
Error (%)
0.0
-2.5
-5.0
-7.5
0 1000 2000 3000 4000 5000 6000
Current (A)
Current (A)
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4.4.4 Typical Amplitude Error vs Frequency
Error (%)
5
0
-5
-10
-15
-20
-25
-30
-35
1 10 100 1000 10000
4.4.5 Typical Phase Error vs Frequency
Phase (°)
10
5
0
-5
-10
1 10 100 1000 10000
Frequency (Hz)
Frequency (Hz)
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4.5 Power Supply
■ The power supply of the J93 clamp is provided by a 9V alkaline battery (type
6LF22, 6LR61, or NEDA 1604).
■ The nominal operating voltage is between 6.5 and 10V.
■ The battery life is 70 hours. The typical consumption is 11 mA.
■ During the battery test, if the indicator lights, the clamp can be used.
■ When the indicator no longer lights, the battery must be replaced (see §5.3).
4.6 Mechanical
Dimensions: 13.23 x 5.00 x 1.65" (336 x 127 x 42mm)
Jaw Opening: 2.84" (72mm)
Lead: 10 ft (3m) long
Weight: 3.75 lbs (1.7kg) approx
Protection Index: IP20 according to IEC 60529
4.7 Environmental
The device must be used under the following conditions:
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%RH
100
95
90
80
75
70
60
50
40
30
20
10
0
-50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90
3
1
2
18 28 35 55
°C
1: Reference range
2: Operating range
3: Storage range (without battery)
■ For an extended period of non-use or storage, remove the battery from the
J93 clamp
■ Indoor use
■ Degree of pollution: 2
■ Altitude: <2000m
4.8 Safety
■ Electrical safety according to IEC 61010-2-032 for type A sensors.
■ Maximum applicable voltage: 600V CAT III; 300V CAT IV
■ Electromagnetic compatibility (EMC)
■ Emissions and immunity in an industrial environment in accordance with IEC
61326-1, except for immunity to the electric eld with a criterion B.
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5. MAINTENANCE
Use only factory specied replacement parts. AEMC® will not be held responsible
for any accident, incident, or malfunction following a repair done other than by its
service center or by an approved repair center.
5.1 Warning
■ To ensure optimum performance, it is important to keep the probe jaw mating
surfaces clean at all times. Failure to do so may result in error in readings.
■ To avoid electrical shock, do not attempt to perform any servicing unless you
are qualied to do so.
■ Do not perform any service while the current probe is on any circuit.
■ To avoid electrical shock and/or damage to the instrument, do not get water or
other foreign agents into the electronic module.
5.2 Cleaning
Disconnect the instrument from any source of electricity.
■ Use a soft cloth, dampened with soapy water. Rinse with a damp cloth and
immediately dry with a dry cloth.
■ Do not use alcohol, solvents, or hydrocarbons.
■ Do not splash water directly on the instrument.
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5.3 Battery Replacement
Disconnect the instrument from any source of electricity.
To replace the battery, proceed as follows:
■ Insert a tool, not more than 3mm in diameter, in the hole in the battery com-
partment cover.
■ Push to unlock the battery compartment cover, then slide it off.
■ Remove it completely by hand.
■ Remove the battery and the shim from the compartment.
■ Place the new battery in the compartment with the polarity as indicated on the
label. Then replace the shim.
■ Put the battery compartment cover back in the slide and push it in until you
hear a click.
Used batteries must not be treated as ordinary household waste. Recycle
them appropriately.
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5.6 Limited Warranty
The Current Probe Model J93 is warranted to the owner for a period of one year
from the date of original purchase against defects in manufacture. This limited
warranty is given by AEMC® Instruments, not by the distributor from whom it was
purchased. This warranty is void if the unit has been tampered with, abused or if
the defect is related to service not performed by AEMC® Instruments.
Full warranty coverage and product registration is available on our website at
www.aemc.com/warranty.html.
Please print the online Warranty Coverage Information for your records.
What AEMC® Instruments will do:
If a malfunction occurs within the one-year period, you may return the instrument
to us for repair, provided we have your warranty registration information on le or
a proof of purchase. AEMC® Instruments will, at its option, repair or replace the
faulty material.
REGISTER ONLINE AT: www.aemc.com
5.7 Warranty Repairs
What you must do to return an Instrument for Warranty Repair:
First, request a Customer Service Authorization Number (CSA#) by phone or by
fax from our Service Department (see address below), then return the instrument
along with the signed CSA Form. Please write the CSA# on the outside of the shipping container. Return the instrument, postage or shipment pre-paid to:
Ship To: Chauvin Arnoux®, Inc. d.b.a. AEMC® Instruments
15 Faraday Drive
Dover, NH 03820 USA
Phone: (800) 945-2362 (Ext. 360)
(603) 749-6434 (Ext. 360)
Fax: (603) 742-2346 or (603) 749-6309
E-mail: repair@aemc.com
Caution: To protect yourself against in-transit loss, we recommend you insure
your returned material.
NOTE: You must obtain a CSA# before returning any instrument.
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