Fluke 381 CAL User manual

381

Remote Display True-rms Clamp Meter

Calibration Manual

December 2010 Rev.1, 6/12
© 2010-2012 Fluke Corporation. All rights reserved. Specifications are subject to change without notice.
All product names are trademarks of their respective companies.

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LIMITED WARRANTY AND LIMITATION OF LIABILITY

Each Fluke product is warranted to be free from defects in material and workmanship under normal use and
service. The warranty period is three years and begins on the date of shipment. Parts, product repairs, and
services are warranted for 90 days. This warranty extends only to the original buyer or end-user customer of
a Fluke authorized reseller, and does not apply to fuses, disposable batteries, or to any product which, in
Fluke's opinion, has been misused, altered, neglected, contaminated, or damaged by accident or abnormal
conditions of operation or handling. Fluke warrants that software will operate substantially in accordance
with its functional specifications for 90 days and that it has been properly recorded on non-defective media.
Fluke does not warrant that software will be error free or operate without interruption.

Fluke authorized resellers shall extend this warranty on new and unused products to end-user customers
only but have no authority to extend a greater or different warranty on behalf of Fluke. Warranty support is
available only if product is purchased through a Fluke authorized sales outlet or Buyer has paid the
applicable international price. Fluke reserves the right to invoice Buyer for importation costs of
repair/replacement parts when product purchased in one country is submitted for repair in another country.

Fluke's warranty obligation is limited, at Fluke's option, to refund of the purchase price, free of charge repair,
or replacement of a defective product which is returned to a Fluke authorized service center within the
warranty period.

To obtain warranty service, 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 difficulty,
postage and insurance prepaid (FOB Destination). Fluke assumes no risk for damage in transit. Following
warranty repair, the product will be returned to Buyer, transportation prepaid (FOB Destination). If Fluke
determines that failure was caused by neglect, misuse, contamination, alteration, accident, or abnormal
condition of operation or handling, including overvoltage failures caused by use outside the product’s
specified rating, or normal wear and tear of mechanical components, Fluke will provide an estimate of repair
costs and obtain authorization before commencing the work. Following repair, the product will be returned to
the Buyer transportation prepaid and the Buyer will be billed for the repair and return transportation charges
(FOB Shipping Point).

THIS WARRANTY IS BUYER'S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY
OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. FLUKE SHALL NOT BE LIABLE
FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSSES,
INCLUDING LOSS OF DATA, ARISING FROM ANY CAUSE OR THEORY.

Since some countries or states do not allow limitation of the term of an implied warranty, or exclusion or
limitation of incidental or consequential damages, the limitations and exclusions of this warranty may not
apply to every buyer. If any provision of this Warranty is held invalid or unenforceable by a court or other
decision-maker of competent jurisdiction, such holding will not affect the validity or enforceability of any other
provision.

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Table of Contents

Title Page

Introduction ........................................................................................................

Contact Fluke ..................................................................................................... 1

Safety Information ............................................................................................. 2

The Meter ........................................................................................................... 5

Specifications ..................................................................................................... 5

Electrical Specifications ................................................................................ 5

Mechanical Specifications ............................................................................. 7

Environmental Specifications ........................................................................ 7

Required Equipment .......................................................................................... 8

Performance Tests .............................................................................................. 8

Calibration Adjustment ...................................................................................... 15

Calibration Password Operation Procedure ................................................... 15

Change the Password ..................................................................................... 16

Two Special Passwords ................................................................................. 16

Adjustment Procedure ................................................................................... 16

Balance Adjustment ....................................................................................... 17

Maintenance ....................................................................................................... 19

Clean the Product .......................................................................................... 19

Battery Replacement ..................................................................................... 19

User Replaceable Parts ...................................................................................... 20

1

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List of Tables

Table Title Page

1.

Symbols .................................................................................................................. 4

2. Required Equipment ............................................................................................... 8

3. Performance Tests .................................................................................................. 11

iFlex Performance Tests ......................................................................................... 14

4.

5. Adjustment Procedure ............................................................................................ 18

6. User Replaceable Parts ........................................................................................... 20

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List of Figures

Figure Title Page

1.

The Meter ............................................................................................................... 5

2. Position Sensitivity ................................................................................................. 6

3. Performance Test Connections for AC Amps and DC Amps ................................ 8

4. Performance Test Connections for AC Amps, DC Amps, and Frequency ............ 9

Performance Test Connections for AC Voltage, DC Voltage, and Frequency ...... 10

5.

6. Performance Test Connections for the iFlex .......................................................... 13

7. Current Test Simulated with Voltage ..................................................................... 14

8. Changing the Batteries ........................................................................................... 20

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Introduction

Read "Safety Information" before you use the Product.

This manual explains the Calibration Adjustment for the 381 Remote Display True-rms
Clamp Meter (the Product). Please see the 381 Users Manual for usage information. The
Product is a handheld, battery-operated Clamp Meter that has a remote-display module
and detachable Flexible Current Probe (iFlex).

Contact Fluke

To contact Fluke, call one of the following telephone numbers:

XWWarning

1

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381

Calibration Manual

Safety Information

A Warning identifies conditions and actions that pose hazard(s) to the user. A Caution
identifies conditions and procedures that could cause Meter damage, equipment under
test damage, or permanent loss of data.

Symbols used on the Product and in this manual are explained in Table 1.

XWWarning

To prevent possible electrical shock, fire, or personal injury:

• Use the Product only as
supplied by the Product can be compromised.

• Examine the case before
cracks or missing plastic. Carefully look at the insulation
around the terminals.

• Do not measure curren
jacks.

• The battery
operate the Product.

• Remove all probes, test leads, and accessories before the
battery

• Do not use test leads if the
leads for damaged insulation, exposed metal, or if the wear
indicator show

• Do not use the Product if it operates incorrectly.

•

Do not use the Product around explosive gas, vapor, or in
damp or wet environments.

• Use onl
Product case, to power the Product.

door must be closed and locked before y

r is opened.

doo

s. Check test lead continuity.

y type AAA batteries, properly installe

specified, or the protection

you use

t while the t

y are da

the Product. Look for

est leads are in the input

maged. Examine the test

d in the

ou

• Hold the Product behind the tactile barrier. See Figure 1.

• Replace the batteries w

( or ) shows to prevent incorrect
measurements.

• Use onl

• Have an approved technician repair the product.

• Do not touch voltages >30 V ac rms, 42 V ac peak, or 60 V

dc.

• Do not apply
terminals or betw

• Keep fingers behind the finger guards on the probes.

• Connect the common test lead before the live test lead and

remove the live test lead before the common test lead.

• Do not w

2

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y s

pecified replacement parts.

more than the rated voltage, between

een e

alone.

ork

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hen the low battery in

ach terminal and earth ground.

dicator

the

Remote Display True-rms Clamp Meter

• Use caution around bare conductors or bus bars. To prevent
electrical shock, do not touch the conductor.

Safety Information

• Compl

y with local and national safety codes.

Use personal
protective equipment (approved rubber gloves, face
protection, and flame-resistant clothes) to prevent shock
and arc blast injury where hazardous live conductors are
exposed.

• Disconnect power and discharge all high-voltage capacitors
before

• Do not measure ac/dc current in circuits carry

you measure resistance or continuity.

ing more than

600 V or 200 A with the Product Jaw.

• Do not operate the product with covers removed or the case
open. Hazardous voltage exposure is possible.

• When

white wear indicator insulation shows th

rough the

clamp cable jacket, replace the clamp cable.

• When batteries are changed, ensure that the calibration seal
in the battery compartment is not damaged. If damaged, the
Product may not be safe for use. Return the Product to
Fluke for replacement of the seal.

• Do not exceed the Measurement Category

(CAT) rating

of
the lowest rated individual component of a product, probe,
or accessory

.

• Do not measure ac current in circuits carryin
1000 V or 2500 A w

• Do not apply

the iFlex

he iFlex.

ith t

around or remove from HAZARDOUS

g more than

LIVE conductors.

• Take special care during fitting and removal of the iFlex. De­energize the installation under test or w

ear suitable

protective clothing.

W Caution

To prevent possible damage to the product or to equipment
under test:

• Use the correct termin

als, function, and range for

measurements.

• Clean the case and accessories w
detergent onl

y. Do not

use abrasives or solvents.

ith a dam

p cloth and mild

3

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381

Calibration Manual

Symbol Meaning Symbol Meaning

Table 1. Symbols

 AC (Alternating Current)

 DC (Direct Current)

X Hazardous voltage P

W

 Battery. Low battery when shown.

CAT III

®

-

Risk of Danger. Important information.
See Manual.

IEC Measurement Category III
CAT III equipment has protection

against transients in equipment in
fixed-equipment installations, such as
distribution panels, feeders and short
branch circuits, and lighting systems in
large buildings.

Examined and licensed by TÜV
Product Services.

Do not apply to or remove from
HAZARDOUS LIVE conductors.

J



)

T

CAT IV



,

Earth ground

AC and dc current.

Conforms to European Union
directives.

Conforms to relevant North American
Safety Standards.

Double insulated

IEC Measurement Category IV
CAT IV equipment has protection

against transients from the primary
supply level, such as an electricity
Meter or an overhead or underground
utility service.

Conforms to relevant Australian
standards.

Application around and removal from
HAZARDOUS LIVE conductors is
permitted.

~

Do not dispose of this product as unsorted municipal waste. Go to Fluke’s website for recycling
information.

Note

The Measurement Category (CAT) and voltage rating of any combination
of test probe, test probe accessory, current clamp accessory, and the Meter
is the LOWEST rating of any individual component.

4

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The Meter

Remote Display True-rms Clamp Meter

The Meter

Tactile Barrier

CAT

100 0 A

600V

1000V

CAT

iFlex

REMOTE DISPLAY

TRMS CLAMP METER

381

Figure 1. The Meter

Specifications

Electrical Specifications

AC Current Via Jaw

Range ..................................................... 999.9 A

Resolution ............................................... 0.1 A

Accuracy ................................................. 2 % ± 5 digits (10-100 Hz)

% ± 5 digits (100-500 Hz)

5

Crest Factor (50/60 Hz) .......................... 3 @ 500 A

2.5 @ 600 A

1.42 @1000 A
Add 2 % for C.F. > 2

ZERO

ghn02.eps

AC Current via iFlex

Range ..................................................... 999.9 A / 2500 A (45 Hz – 500 Hz)

Resolution ............................................... 0.1 A / 1 A

Accuracy ................................................. 3 % ±5 digits

Crest Factor (50/60Hz) ........................... 3.0 at 1100 A

2.5 at 1400 A

1.42 at 2500 A
Add 2 % for C.F. > 2

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381

g

Calibration Manual

Position Sensitivity

Figure 2 shows the position sensitivity of the iFlex.

A

B

C

Distance from

Optimum

i2500-10 Flex i2500-18 Flex Error

A 0.5 in (12.7 mm) 1.4 in (35.6 mm) ± 0.5 %

B 0.8 in (20.3 mm) 2.0 in (50.8 mm) ± 1.0 %

C 1.4 in (35.6 mm) 2.5 in (63.5 mm) ± 2.0 %

Measurement uncertainty assumes centralized primary conductor at optimum position, no external
electrical or magnetic field, and within operating temperature range.

Figure 2. Position Sensitivity

DC Current

Range ..................................................... 999.9 A

Resolution ............................................... 0.1 A

Accuracy ................................................. 2 % ± 5 digits

AC Voltage

Range ..................................................... 600 V /1000 V

Resolution ............................................... 0.1 V / 1 V

Accuracy ................................................. 1.5 % ± 5 digits (20 to 500 Hz)

DC Voltage

Range ..................................................... 600.0 V /1000 V

Resolution ............................................... 0.1 V / 1 V

Accuracy ................................................. 1 % ± 5 digits

hn12.eps

Frequency – Via Jaw

Range ..................................................... 5.0 to 500.0 Hz

Resolution ............................................... 0.1 Hz

Accuracy ................................................. 0.5 % ± 5 digits

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Remote Display True-rms Clamp Meter

Trigger Level ........................................... 5 to 10 Hz, ≥10 A

10 to 100 Hz, ≥5 A

100 to 500 Hz, ≥10 A

Frequency via iFlex

Range .................................................... 5.0 to 500.0 Hz

Resolution .............................................. 0.1 Hz

Accuracy ................................................ 0.5 % ± 5 digits

Trigger Level .......................................... 5 to 20 Hz, ≥ 25 A

20 to 100 Hz, ≥ 20 A

100 to 500 Hz, ≥ 25 A

Resistance

Range ..................................................... 600 Ω/6 kΩ/60 kΩ

Resolution ............................................... 0.1 Ω/1 Ω/10 Ω

Accuracy ................................................. 1 % ± 5 digits

Mechanical Specifications

Size (L x W x H) ..................................... 277 mm *88 mm * 43 mm (55 mm for remote unit)

Weight ..................................................... 350 g

Jaw Opening ........................................... 34 mm

iFlex Diameter ......................................... 7.5 mm

iFlex Cable Length

(head to electronics connector) .............. 1.8 m

Specifications

Environmental Specifications

Operating Temperature ........................... -10 °C to +50 °C

Storage Temperature .............................. -40 °C to +60 °C

Operating Humidity ................................. Non condensing (< 10 °C)

≤

90 % R

H (at 10 °C to 30 °C)

75 % R

≤

≤

(Without
Operating Altitude

Storage Altitude ...................................... 12,000 meters

EMI, RFI, EMC, RF ................................. EN 61326-1:2006, EN 61326-2-2:2006

Temperature Coefficients........................ Add 0.1 x specified accuracy for each degree C above

Wireless Frequency ................................ 2.4 GHz ISM Band 10 meter range

Safety Compliance .................................. ANSI/ISA S82.02.01:2004

Double Insulation Clearance ................... Per IEC 61010-2-032

Double Insulation Creepage ................... Per IEC 61010-1

Agency Approvals ...................................

................................... 2000 meters

ETSI EN 300 328 V1.7.1:2006

ETSI EN 300 489 V1.8.1:2008

FCC Part 15 Subpart C Sections 15.207, 15.209, 15.249 FCCID: T68-F381

RSS-210 IC:

28

CAN/CSA-C22.2 No. 61010-1-04

IEC/EN 61010-1:2001 to 1000V CAT III, 600V CAT IV.

P, ), , ®, Ã (KCC-CRM-T68-F381)

H (at 30 °C to 40 °C)

45 % R

H (at 40 °C to 50 °C)

Conden

°C

or below 18 °C

sation)

6627A-F381

7

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381

Calibration Manual

Required Equipment

Calibrator 4.5-digit resolution Fluke 552xA Calibrator

Wired coil 50 turns 5500A/COIL

Test Probe for iFlex 2 mm to 4 mm Slim reach probe TP2, PN650892

Test Lead Test Lead w/retractable sheath 6358, PN1903307

Performance Tests

The equipment listed in Table 2 is required for performance tests and calibration
adjustment.

Table 2. Required Equipment

Equipment Required Characteristics Recommended Model

XWWarning

To prevent possible electrical shock, fire, or personal injury,
do not perform the performance test procedures unless the
Product is fully assembled.

The following performance tests verify the complete operation of the Product and check
the accuracy of each function against the specifications of the Product. See Table 3. If the
Product fails any part of the test, calibration adjustment and/or repair is indicated. See
“Calibration Adjustment”. Table 3 shows the Performance tests for the product. Table 4
shows the Performance tests for the iFlex. Figures 3 and 4 show the performance test
connections for ac amps and dc amps. Figure 5 shows the performance test connections
for ac volts, dc volts, and frequency.

381

REMOTE DISPLAY

T

RMS

CLAMP METER

iFlex

+

•

/

0

Figure 3. Performance Test Connections for AC Amps and DC Amps

ghn10.eps

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10

50-Turn Current Coil

Remote Display True-rms Clamp Meter

Performance Tests

Conductor

600V

1000A

CAT

381

REMOTE DISPLAY

T

R

MS CLAMP METER

iFlex

600V

1000A

5522A

Polarity is
Reversed

+

•

/

0

Figure 4. Performance Test Connections for AC Amps, DC Amps, and Frequency

ghn07.eps

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381

Calibration Manual

5522A

+

/

0

Figure 5. Performance Test Connections for AC Voltage, DC Voltage, and Frequency

•

ghn15.eps

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Table 3. Performance Tests

Remote Display True-rms Clamp Meter

Performance Tests

Test

(Switch

Position)

K

AC Volts

L

DC Volts

Nominal

20 V 20 V, 20 Hz 19.2 20.8

10 V 10 V, 50 Hz 9.4 10.7

600 V 600 V, 50Hz 590.5 609.5

1000 V 1000 V, 50Hz 980 1020

10 V 10 V, 500 Hz 9.4 10.7

600 V 600 V, 500 Hz 590.5 609.5

1000 V 1000 V, 500 Hz 980 1020

-1000 V -1000 V -1015 -985

-600 V -600 V -606.5 -593.5

-10 V -10 V -10.6 -9.4

10 V 10 V 9.4 10.6

600 V 600 V 593.5 606.5

1000 V 1000 V 985 1015

Calibrator Output

Value

UUT Meter Reading Limits

Low High



Ohms

0 e 0 e -0.5 0.5

10 e 10 e 9.4 10.6

100 e 100 e 98.5 101.5

590 e 590 e 583.6 596.4

1000 e 1000 e 985 1015

3000 e 3000 e 2965 3035

6000 e 6000 e 5935 6065

10 ke 10 ke 9.85 10.15

30 ke 30 ke 29.65 30.35

60 ke 60 ke 59.35 60.65

11

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Calibration Manual

Table 3. Performance Tests (cont.)

Test

(Switch

Position)



AC Amps
(with 50-

Turn Coil)



DC Amps
(with 50­Turn Coil)

Nominal

10 A 0.2 A, 50 Hz 9.3 10.7

100 A 2 A, 50 Hz 97.5 102.5

600 A 12 A, 50 Hz 587.5 612.5

900 A 18 A, 50 Hz 881.5 918.5

975 A 19.5 A, 50 Hz 955.0 995.0

10 A 0.2 A, 440 Hz 9.0 11.0

-975 A -19.5 A -995.0 -955.0

-600 A -12 A -612.5 -587.5

-100 A -2 A, -102.5 -97.5

-10 A -0.2 A -10.7 -9.3

0 A 0 A

10 A 0.2 A 9.3 10.7

100 A 2 A 97.5 102.5

Calibrator Output

Value

[1]

UUT Meter Reading Limits

Low High

-0.5 0.5

600 A 12 A 587.5 612.5

900 A 18 A 881.5 918.5

975 A 19.5 A 955.0 995.0



Frequency
(with 50­Turn Coil)

[1] The 0 A dc test must be performed with a single wire connected from 552XA AUX HI to AUX

LO and the 381 clamped around the wire.

50 Hz 0.1 A, 50 Hz 49.3 50.8

12

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Remote Display True-rms Clamp Meter

Performance Tests

Performance tests for the iFlex are in Table 4. Connect the 5520A A ac output to the 50­turn coil. Figures 6 and 7 show the performance test connections for the iFlex. For the
iFlex simulated tests you need the leads and probes listed in the required equipment list.
They are used to connect the calibrator output to the iFlex input. Calibrator Output HI
goes to the iFlex 2 mm jack (on the far left) and the Calibrator Output LO goes to the
black COM jack. See the notes in Table 4.

50-Turn Current Coil

Conductor

Figure 6. Performance Test Connections for the iFlex

ghn13.eps

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381

Calibration Manual

5522A

Test

(Switch

Position)

AAC/R-coil

Figure 7. Current Test Simulated with Voltage

Table 4. iFlex Performance Tests

Nominal

10 A 0.2 A, 50 Hz

600 A 12 A, 50 Hz

995 A 19.9 A, 50 Hz

2500 A 75 mV, 50 Hz

10 A 0.2 A, 500 Hz

Calibrator Output

Value

[1]

[1]

[1]

[2]

[1]

2500 A 750 mV, 500 Hz

+

•

/

0

ghn14.eps

UUT Meter Reading Limits

Low High

9.2 10.8

581.5 618.5

964.6 1025.4

2420 2580

9.2 10.8

[2]

2420 2580

Freq./R­coil

[1] Connect the 552XA AAC output to the 50-turn coil. Connect the iFlex coil from the 381 to the 50-Turn Coil.

See connections in Figure 6.

[2] Simulated by voltage. Connect the 552XA VAC output to the 381. See the connection in Figure 7.

50 Hz 50 Hz, 0.4 A

[1]

49.3 50.8

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Calibration Adjustment

Calibration Password Operation Procedure

A password is required to access the Calibration adjustment section of the Product. This
section explains how this functionality works. To enter a password:

1. Push  and turn the rotary switch to . The display shows “CAL”.

Remote Display True-rms Clamp Meter

Calibration Adjustment

2. Push to enter the password entry mode. The display shows “????

3. Enter the 4-di
digits:

git password. For this step, the keys

are mapped to the corresponding

- 1
- 2
- 3

- 4

- 5

• If you enter a incorrect password, push  or . The display shows “????

and you can re-enter the password.

• If you enter t

push  to c

4. Push  to

5. Once the Product has entered calibration m
step num

ber. Push  to confirm a calibration value.

he correct password, push  to conti

hange the password. See Ch

enter calibration m

ode.

ode, push 

nue calibration (step 5) or

ange the Password.

to show the calibration

”.

”

15

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381

Calibration Manual

Change the Password

To change the password:

1. The display shows “----“.

2. Enter the 4-digit password. For this step, the keys
digits:

- 1
- 2
- 3

- 4

- 5

After all 4 digits are entered, the leading “-“ icon appears on the display.

3. Push  to

4. After the new password is entered, the Product reboot
“F381” and then changes to the current

step during this procedure, turning rotary switch to OFF terminates the Calibration

At any
Password mode.

Two Special Passwords

The Default Password is 1234. It is used when the Product shows “CAL ERR”, which
means that the calibration parameter is corrupted. Entering the default password takes
you to the calibration mode. After the Product is calibrated, “CAL ERR” disappears.

The Master Password is 4132. If the password is forgotten, you can enter the Master
Password after “????” shows on the display. Then push  and the password is restored
to the Default Password: 1234. The Master Password is protected, and you cannot
change the Calibration Password to this combination.

store the new password.

select

are mapped to the corresponding

s and the display briefly

ed function.

shows

16

Adjustment Procedure

The Product features a closed-case calibration procedure. To adjust Product calibration:

Turn the Product ON.

1.

2. Push  while turning the Rotary

3. Push

4. Enter the Calibration Password.

5. Push

.

 again to enter calibration mode.

Switch to

.

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Remote Display True-rms Clamp Meter

Calibration Adjustment

6. Turn the Rotary Switch to the function you wish to calibrate. If you wish to adjust
Jaw balance, see Balance Adjustme

nt.

7. Push .

8. See Table 5 and appl

9. Push  to confirm

10. When

If you enter t

you are finished with the calibration adjustment, push  and then push 

to confirm

the change.

he calibration mode but do not wish to save the data, simply turn the Product

OFF.

Balance Adjustment

1. Push  to enter the balance calibration mode. The display shows “up

2. Place the upper part of the

3. Wait for the reading to settle.

4. Push to record the reading. T

5. Place the lower part of jaw close to coil.

6. Wait for the reading to settle.

7. Push  to record the reading.

8. Repeat these

It can take multiple cycles

y the required inputs

the value and move

.

the next calibration point.

jaw close to coil.

he display shows “don

steps, until the display shows “End

Note

before the display shows “End”.

”.

”.

”.

9. Push 

to exit balance adjustment.

17

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381

Calibration Manual

Table 5. Adjustment Procedure

Test

(Switch

Position)

L

DC Volts

K

AC Volts



Ohms



AC Amps

With 50-turn

Coil



DC Amps

With 50-turn

Coil



iFlex

Current

Probe

Product

LCD

Reading

C-01 0 V dc

C-02 1000 V dc

C-03 600 V, 60 Hz

C-04 600 V, 150 Hz

C-05 600 V, 250 Hz

C-06 600 V, 350 Hz

C-07 600 V, 440 Hz

C-08 10 e

C-09 400 e

C-10 1 ke

C-11 6 ke

C-12 10 ke

C-13 25 ke

C-14 45 ke

C-15 60 ke

C-16 BALANCE (3 A, 60 Hz JAW A ac)

C-17 TEMPERATURE (Note: There is no input required.)

C-18 12 A, 60 Hz JAW A ac

C-19 3 A, 60 Hz JAW A ac

C-20 3 A, 150 Hz JAW A ac

C-21 3 A, 250 Hz JAW A ac

C-22 3 A, 350 Hz JAW A ac

C-23 3 A, 440 Hz JAW A ac

0 A JAW A dc (Note: The 0 A dc Calibration (C-24) must be performed

C-24

C-25 12 A ,JAW A dc

C-26 21.6 mV, 60 Hz; Simulates 600 A, 60 Hz A ac

C-27 5.4 mV, 150 Hz; Simulates 150 A, 150 Hz A ac

C-28 13.5 mV, 150 Hz; Simulates 150 A, 150 Hz A ac

C-29 22.5 mV, 250 Hz; Simulates 150 A, 250 Hz A ac

C-30 31.5 mV, 350 Hz Simulates 150 A, 350 Hz A ac

C-31 39.69 mV, 440 Hz; Simulates 150 A, 440 Hz A ac

with a single wire connected from 552XA AUX HI to AUX LO and UUT
clamped around the wire.)

Action

18

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Maintenance

Clean the Product

WCaution

To prevent possible damage to the Product or to equipment
under test, do not use abrasive cleaners. They will damage the
case.

To clean the Product, use a cloth with a mild cleaning solution.

Battery Replacement

XW Warning

To prevent possible explosion, fire, or personal injury, Replace
the batteries when the low battery indicator ( or
) shows to prevent incorrect measurements.

WCaution

To prevent possible damage to the Product or to equipment
under test:

Remote Display True-rms Clamp Meter

Maintenance

• Remove batteries to prevent battery leakage
the Product if it is not used for an extended period.

• Be sure that the battery
leakage.

To change the batteries, s

1. Make sure the Product is

2. Turn the Product over to access the batte

3. Use a flat-h
the battery

4. Replace the t

5. Reattach the battery compartm

6. Tighten the b

ead screwdriver to loosen the battery compartm

compartm

hree AA batteries.

attery compartm

ee Figure 8:

ent door.

polarity is correct to prevent battery

OFF.

ry compartment door screw

ent door.

ent door screw.

and damage to

.

ent door screw and lift off

19

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381

Calibration Manual

Figure 8. Changing the Batteries

User Replaceable Parts

User replaceable parts are listed in Table 6.

Table 6. User Replaceable Parts

Fluke Part

Number

2838018 Battery, AAA 1.5V 5

3625529 Battery Door - Display Module 1

3766406 Battery Door - Main Base 1

3766445 Remote Display 1

3752973 Soft Case 1

3538357 Users Manual 1

3782019 TL175 test leads 1

3798105 Fluke I2500-18 Rogowski coil 1

1670641 Alligator,2 mm jack, red boot 1

Description Qty

ghn03.eps

1670652 Alligator,2 mm jack, black boot 1

20

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