Fluke I30s Manual de usuario

PN 2560394

March 2006

i30s/i30

AC/DC Current Clamps

Instruction Sheet

Introduction

The i30s AC/DC Current Clamp has been designed for use with

oscilloscopes and DMMs for accurate, non-intrusive

measurement of both AC, DC, and complex waveform currents.

The i30 AC/DC Current Clamp has been designed for use with

DMMs only. Using advanced Hall Effect technology the i30s can

accurately measure currents with a resolution of 1 mA from 5 mA

to 30 A over the frequency range of DC to 100 kHz. These

features make it a powerful tool for use in inverters, switch mode

power supplies, industrial controllers and other applications

requiring current measurements and/or waveform analysis.

Symbols

The table below lists the symbols used on the product and/or in

this manual.

Symbol Description

~Do not dispose of this product as unsorted municipal

waste. Contact Fluke or a qualified recycler for

disposal.

WImportant Information. See manual.

TDouble insulation.

-Do not apply around or remove from the HAZARDOUS

LIVE conductors.

)Conforms to Canadian Standards Association.

PComplies with the relevant European standards.

i30s/i30 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 your product.

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 calibrator or the test

instruments.

WXWarning

The i30s and i30 may only be used and handled by

qualified personnel. To avoid personal injury, follow

these precautions:

•To avoid electric shock, use caution during

installation and use of this product; high

voltages and currents may be present in circuit

under test.

•Do not use the product if damaged. Always

connect probe to display device before it is

installed around the conductor.

•Always ensure the probe is removed from any

live electric circuit, and leads are disconnected

before removing the battery cover.

•Use the Current Probe only as specified in the

operating instructions; otherwise the current

probe’s safety features may not protect you.

•Adhere to local and national safety codes.

Individual protective equipment must be used

to prevent the shock and arc blast injury where

hazardous live conductors are exposed.

•Do not hold the Current Probe anywhere

beyond the tactile indicator.

•Before each use, inspect the Current Probe.

Look for cracks or missing portions of the

Current Probe housing or output cable

insulation. Also look for loose or weakened

components. Pay particular attention to the

insulation surrounding the jaws.

•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.

•Use of this 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.

i30s/i30 English Instruction Sheet

Page 3

•Use of this equipment in a manner not specified

herein may impair the protection provided by

the equipment.

•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.

Specifications

Electrical Characteristics

All accuracies stated at 23°C ± 1°C

Current range 20 A ACRMS or DC

Measuring range ± 30 A

Overload capacity 500 A

Output sensitivity 100 mV/A

Accuracy (at 25 °C) ± 1 % of reading ± 2 mA

Resolution ± 1 mA

Typical output noise

level

200 µVRMS

Load impedance > 100 k Ohms ≤100 pF

Conductor position

sensitivity

± 1 % relative to center reading

Frequency range

i30s DC to 100 kHz (0.5 dB)

i30 DC to 20 kHz (0.5 dB)

di / dt following 20 A / µs

Response time Better than 1 µs

Temperature

coefficient

± 0.01 % of reading / °C

Operating humidity: 15 to 85 % (non

condensing)C

Altitude: 2000 m

Power supply 9 V Alkaline, NEDA 1604/PP3

IEC 6LR61

Working voltage

(see Safety

Standards)

300 V ACRMS or DC

Battery life 30 hours, low battery indicator

i30s/i30 English Instruction Sheet

Page 4

General Characteristics

Maximum conductor

size

19 mm diameter

Output cable and

connections:

i30s 2 m cable terminated with a BNC

connector (50 Ohms) supplied

with a 4 mm safety adaptor

i30 1.5 m cable terminated with a dual

4 mm banana safety plug

Output zero Manual adjust via thumbwheel

Operating temperature

range

0 to +50 °C

Storage temperature

range (with battery

removed)

-20 to +85 °C

Weight 290 g

i30s/i30 English Instruction Sheet

Page 5

Typical Performance Plots

Frequency in Hz

Gain in dB

-1

-2

-3

1000

i30s

100000

Frequency in Hz

Gain in dB

10 100

0.00

-0.50

-1.00

-2.00

-1.50

-2.50

-3.00

1000 10000

i30

100000

ehr01.eps

Typical Frequency Response

Frequency in Hz

-5

-10

-15

-20

1000

i30s

100000

Frequency in Hz

Phase Shift in Degrees Phase Shift in Degrees

-15

-10

-20

1000 20000

i30

100000

-5

ehr02.eps

Typical Frequency Response

i30s/i30 English Instruction Sheet

Page 6

% Error of Reading

2.00

1.50

1.00

0.50

0.00

-0.50

-1.00

-1.50

-2.00

i30s

50 mA 5 10 15 20 25 30

% Error of Reading

2.00

1.50

1.00

0.50

0.00

-0.50

-1.00

-1.50

-2.00

i30

50 mA 5 10 15 20 25 30

ehr03.eps

Typical Accuracy Curve

Safety Standards

BS EN 61010-1: 2001

BS EN 61010-2-032: 2002

BS EN 61010-031: 2002

CSA C22.2 No. 1010.1

300 VRMS, Category III, Pollution degree 2

Use of the probe on uninsulated conductors is limited to 300 V

ACRMS or DC and frequencies below 1 kHz.

EMC Standards

BS EN 61326: 1998 +A1, A2, and A3.

i30s/i30 English Instruction Sheet

Page 7

Operating Instructions

1 LED

2 Zero Adjust

3 Battery Cover

6 7

4 ON/OFF Switch

5 Protective Barrier

6 Jaws

7 Battery Cover

Screw (Captive)

ehr04.eps

Figure 1. i30s & i30 AC/DC Current Clamps

WWarning

To avoid injury, when using the probe ensure that

your fingers are behind the protective barrier as

shown in Figure 1. Do not use the probe if any part

of the probe, including the lead and connector(s),

appear to be damaged or if a malfunction of the

instrument is suspected.

Clean the case periodically by wiping it with a damp cloth and

detergent. Do not use abrasive cleaners or solvents. Do not

immerse the probe in liquids.

Switch On

When the probe is switched on, the red LED will illuminate. The

LED starts flashing when the battery voltage is too low for normal

operation and warns the user that it requires changing. This

procedure is described below.

Zero Adjustment

The output zero offset voltage of the probe may change due to

thermal shifts and other environmental conditions. To adjust the

output voltage to zero, depress the thumbwheel and rotate.

Ensure that the probe is away from the current carrying

conductor whilst the adjustment is made.

i30s/i30 English Instruction Sheet

Page 8

Current Measurement

1. Switch on the probe using the On – Off switch and

check that the LED is lit.

2. Connect the output lead to an oscilloscope, multimeter,

or other measuring equipment.

3. If necessary adjust the probe output voltage to zero as

described in section Zero Adjustment.

4. Clamp the jaw of the probe around the conductor

ensuring a good contact between the closing faces of

the jaws.

5. Observe and take measurements as required. Positive

output indicates that the current flow is in the direction

shown by the arrow on the probe.

Battery Replacement

WWarning

To avoid personal injury, always ensure the probe is

removed from any live electric circuit, and leads are

disconnected before removing the battery cover.

Never operate the probe without the battery cover

fitted.

The red LED will flash when the minimum operating voltage is

approached. Refer to Fig.1. Use the following procedure:

1. Unclamp the probe from the conductor, turn it off using

the On – Off switch and disconnect the output leads,

from external equipment.

2. Loosen the captive screw that secures the battery

cover. Lift the cover through 30° and pull it clear of the

probe body as shown in Fig 1. The battery is then

accessible. Replace the battery and re-fit the battery

cover and fasten the screw.

Note

Replacement with other than the specified type of

battery will invalidate the warranty.

Fit only the type 9 V PP3 Alkaline (MN 1604).

i30s/i30 English Instruction Sheet

Page 9

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

i30s/i30 English Instruction Sheet

Page 10

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