AEMC Instruments 1000-24-2-1 User manual

AmpFlex®
Flexible AC Current Probes

USER MANUAL

!

ON OL

600V CAT IV

10 mV/A

1 mV/A

OFF

AmpFlex

®

®

INSTRUMENTS

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Statement of Compliance

Chauvin Arnoux®, Inc. d.b.a. AEMC® Instruments
certifies that this instrument has been calibrated
using standards and instruments traceable to
international standards.

We guarantee that at the time of shipping your
instrument has met its published specifications.

An NIST traceable certificate may be
requested at the time of purchase, or obtained
by returning the instrument to our repair and
calibration facility, for a nominal charge.

The recommended calibration interval for this
instrument is 12 months and begins on the date of
receipt by the customer.




Serial #:

Catalog #:

Model #:

Please fill in the appropriate date as indicated:

Date Received:

Date Calibration Due:

_____________________________________

AmpFlex® AC Current Probe

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Table of Contents

Warning ..................................................................................................... 2

International Electrical Symbols ................................................................ 2

Definition of Measurement Categories ...................................................... 3

Receiving Your Shipment .......................................................................... 3

Packaging .................................................................................................. 3

Description ................................................................................................ 4

Features .................................................................................................... 5

Features .................................................................................................... 6

Accessories ............................................................................................... 6

Standard Models ....................................................................................... 7

Specifications ............................................................................................ 8

Instrument Compatibility .......................................................................... 12

Operation ................................................................................................. 12

Making Measurements with the AmpFlex® .......................................... 12

Tips for Making Precise Measurements: ............................................. 12

Typical Response Curves: ................................................................... 16

Maintenance ............................................................................................ 18

Warning ............................................................................................... 18

Battery Replacement ........................................................................... 18

Cleaning............................................................................................... 18

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AmpFlex® - Flexible AC Current Probes

Warning

These safety wa rnings a re p rovided t o en sure the safety of
personnel and proper operation of the instrument.

 Read the in struction ma nual completely and foll ow all the

safety inform ation befo re attempting to use o r servi ce this
instrument.

 Wear protective clothing and gloves as required.

 Use ca ution on any circu it: potentially high voltag es an d

currents may be present and may pose a shock hazard.

 Read the safety spe cifications section prio r to using th e

current probe. Never exceed the max voltage ratings given.

 Safety is the responsi bility of the operator. T he A mpFlex

must be used only by qu alified p ersonnel u sing a pplicable
safety precautions.

 ALWAYS de-energize the c ircuit before wrapping the

AmpFlex
parts. Do not wrap on live conductors.

 ALWAYS c onnect the elec tronic module to the dis play

device before wrap ping t he AmpFl ex
being tested.

 ALWAYS inspec t the module, sens or, s ensor cable, and

output termin als pri or to u se. Repl ace any defective parts
immediately. Use only factory parts.

 NEVER us e the AmpFlex

above 600V CAT IV; 1000V CAT III.

®

around b are conductors, b us ba rs, or near live

®

aro und th e sample

®

on ele ctrical conductors rated

®

International Electrical Symbols

This symbol signifies that the current probe is p rotected by double
or reinforced insulation. Use o nly factory spe cified repla cement
parts when servicing the instrument.

This symbol signifies CAUTION! and requests that the user refer to
the user manual before using the instrument.

This symbol refers to a type B current sensor. Do not apply around
or remove from HAZARDOUS LIVE conductors without additional
protective means (de-energizing the circuit or wearing protective
clothing suitable for high voltage work).

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AmpFlex® - Flexible AC Current Probes

Definition of Measurement Categories

CAT I: For measurements on circuits not directly connected to the A C

supply wall o utlet su ch as prot ected se condaries, si gnal level,
and limited energy circuits.

CAT II: For mea surements pe rformed on ci rcuits directly co nnected to

the ele ctrical distri bution system. Exa mples are m easurements
on household appliances or portable tools.

CAT III: For me asurements p erformed in the building in stallation at the

distribution l evel su ch a s on h ardwired e quipment in fixed
installation and circuit breakers.

CAT IV: For me asurements p erformed at the primary ele ctrical supply

(<1000V) such as on p rimary ove rcurrent protection devi ces,
ripple control units, or meters

Receiving Your Shipment

Upon receiving you r shipment, ma ke sure that the contents a re
consistent wi th the packin g list. Noti fy your di stributor of any mi ssing
items. If the equipment appears to be damaged, file a claim immediately
with the carrier a nd notify your di stributor at on ce, giving a detailed
description of any damage.

Packaging

Your AmpFlex® consists of the following items:

 Flexible probe with electronic module

 User manual

 9V battery

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AmpFlex® - Flexible AC Current Probes

Description

The AmpFlex® is a flexible AC current transformer composed of a flexible
sensor a nd an electronic m odule. The flexib le sen sor permits
measurements on condu ctors where standard clamp-on probe s could
not be used. In pa rticular, it can be installed in ti ght spaces, around
breaker panels, around cable bundles, around wide or large bus bars, or
even wrapp ed arou nd irregula r sh apes. The Shap e Memory feature
enables the user to “pre-shape” the sensor before inserting it between or
around conductors. This feature facilitates closing, enhances user safety,
and all eviates the drooping effe ct ty pically a ssociated with flexible
sensors.

®

The AmpFle x
standard t ransformers. Th e tran sformation pri nciple is ba sed on an ai r
core. It presents virtually no load to the system u nder te st, has a low
phase shift a nd excellent frequ ency response, and cannot be damaged
by overloads.

The se nsor assembly is waterproof and insul ated for 600V CAT IV;
1000V CAT III. The AmpFl ex
designed wit h material s a nd co mponents to meet internatio nal agency
approvals.

The Amp Flex
for direct readings on DMMs, data l oggers, oscilloscopes, and power or
harmonic meters. TRMS measurements are taken when connected to a
TRMS m eter. The Amp Flex
AC component of the measured signal is measured.

The length of the flexible sensor can be selected in lengths of 24" , 36",
and 48" in le ngth. Consult the factor y for custom lengths, ranges and/or
features.

is lightwe ight and do es not u se magneti c co res like

®

meets EN 61010-1, is CE m arked, and is

®

ha s a n mV output proportional to th e current m easured

®

is in sensitive to DC currents an d only the

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AmpFlex®

AmpFlex® - Flexible AC Current Probes

600V CAT IV

®

Figure 1

1. Positive: Red Banana Plug (+)

2. Common: Black Banana Plug (-)

3. Power ON Indicator (Green LED)

4. Overload Indicator (Red LED)

5. Range Selection Switch

®

6. AmpFlex

Connector/Latch

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7. Flexible Sensor
(Diameter 0.5", 12.5mm)

8. Lead from Sensor to Module
(6.5 ft, 2m)

9. Electronic Module -
Descriptive Label on Back

Case (range, model, etc.)

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AmpFlex® - Flexible AC Current Probes

Features

 Models to measure from 0.5Arms to 30,000Arms

 Accuracy 1% of Reading

 TRMS measurements when connected to a TRMS instrument

 No core saturation or damage if overloaded

 Overrange LED for measurement circuitry

 600V CAT IV; 1000V CAT III; EN 61010; CE Mark

 Wate rproof sensor

 9V battery for typical 150 hour continuous operation

 Shape Memory for custom pre-shaping of sensor before use

(no drooping)

 Very high frequency response

 Low phase shift for power

 Insensitive to DC, measures only AC component on DC + AC signals

 Excellent linearity

 Lightweight

Accessories

Banana (Female) / BNC (Male) Adapter ..................... Cat. # 2118.46

®

For connection of the AmpFlex

BNC terminals on scopes and other displaying instruments.

to SLII Models L101, L102, L562,

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AmpFlex® - Flexible AC Current Probes

Standard Models

Model

300-24-2-10 30/300A 100/10mV/A 24” (610mm) 8” (190mm) 2112.88
1000-24-1-1 1000A 1mV/A 24” (610mm) 8” (190mm) 2112.39
1000-24-2-1 100/1000A 10/1mV/A 24” (610mm) 8” (190mm) 2112.98
1000-36-2-1 100/1000A 10/1mV/A 36” (910mm) 11” (290mm) 2113.00

3000-24-2-0.3 300/3000 A 3.3/0.3mV/A 24” (610mm) 8” (190mm) 2114.87*

3000-24-1-1 3000A 1mV/A 24” (610mm) 8” (190mm) 2112.46
3000-36-1-1 3000A 1mV/A 36” (910mm) 11” (290mm) 2112.48
3000-24-2-1 300/3000A 10/1mV/A 24” (610mm) 8” (190mm) 2113.05
3000-36-2-1 300/3000A 10/1mV/A 36” (910mm) 11” (290mm) 2112.00
3000-48-2-1 300/3000A 10/1mV/A 48” (1220mm) 15” (390mm) 2112.01

6000-36-2-0.1 600/6000 A 1/0.1mV/A 36” (910mm) 11” (290mm) 2113.21

30000-24-2-0.1 3000/30 ,000A 1/0.1mV/A 24” (610mm) 8” (190mm) 2113.33

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Measurement

Range

Output

Sensor
Length

*This model (Cat. #2114.87) is recommended to be used with our Simple Logger® II Models
L101, L102 & L562.

All of our AmpFlex® models are designed to be used with recorders or power analyzers with a
voltage AC input. A scale factor may need to be entered into the recorder to display the exact
value.

Max

Conductor

Size

Cat. #

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AmpFlex® - Flexible AC Current Probes

Specifications

Model 300A 30/300A 1000A 100/1000A

Measurement

Range

Accuracy ±1% +200mA ±1% +200mA ±1% +200mA ±1% +200mA

Output Signal 10mV/A

Crest Factor

(mid-range)

Phase Shift @

50/60Hz

Residual Noise 200mA 200mA 200mA 200mA

Model # 3000A 300/3000A 3000/30000A 600/6000A

Measurement

Range

Accuracy ±1% +200mA ±1% +200mA ±1% +1A ±1% +500mA

Output Signal 1mV/A

Crest Factor

(mid-range)
Phase Shift

@ 50/60Hz

Residual Noise 200mA 200mA 1A 500mA

*Reference Conditions: 25°C ± 5°K, 20 to 75% RH, 1 minute warm-up, battery at 9V ± 0.5V, conductor
center, external DC magnetic field < 40A/m, no external AC magnetic field, no external electrical field, 10
to 100Hz, sine wave. See accuracy curves for low currents.

5 to 300A 5 to 300A 5 to 1000A 5 to 1000A

100mV/A or

10mV/A

3.0 3.0 9.0 9.0

1.5° 1.3° 0.7° 0.7°

5 to 3000A 5 to 3000A 5-30000A 5 to 6000A

10mV/A or

1mV/A

3.0 3.0 3.0 > 10

0.7° 0.7° 0.5° 0.5°

1mV/A

1mV/A or

0.1mV/A

10mV/A or

1mV/A

1mV/A or

0.1mV/A

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AmpFlex® - Flexible AC Current Probes

Common Specifications

ELECTRICAL
Accuracy: 1% of reading ± residual noise
Frequency Range: 10 - 20,000Hz with current derating
Signal Output: 4.5V max
Working Voltage: 600V CAT IV; 1000V CAT III
Frequency Influence:

See Accuracy vs. Frequency curves on pages 18 and 19

Frequency Limitation:

See current derating curves (note no limitation on 300A Range) page 19

Influence of adjacent conductor in contact with sensor and
with AC signal: 0.2% typical, 2% maximum

Influence of conductor position in sensor: 0.5% typical, 4% max
Influence of shape of sensor: Oblong shape: 0.2% typical, 1% max
Common Mode Rejection: 100dB typical, 80dB min

ENVIRONMENTAL SPECIFICATIONS
Operating Temperature Range: -14° to 131°F (-10° to +55°C)
Storage Temperature Range: -40° to 158°F (-40° to +70°C)
Influence of Temperature:

Sensor: -14° to 194°F (-10° to 90°C); 0.15% per 18°F (10°C) typical,

0.5% per 18°F 10°C max
Module: -14° to 131°F (-10° to 55°C); 0.15% per 18°F (10°C) typical,

0.5% per 18°F (10°C) max

Influence of Relative Humidity:

10 to 90% RH: 0.2% typical, 0.5% maximum

Operating Relative Humidity:

50° to 86°F (10° to 30°C); 85° ± 5% RH (without condensation)
104° to 122°F (40° to 50°C); 45° ± 5% RH (without condensation)

Altitude:

Operating: 0 to 2000m, working voltage derating above
Non-operating: 0 to 12,000m

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AmpFlex® - Flexible AC Current Probes

MECHANICAL SPECIFICATIONS
Module Output: Two 4 mm safety banana jacks

Standard 3/4" (19mm) spacing

Battery: 9V Alkaline (NEDA 1604A, IEC 6LR61) recommended
Battery Life: Useable from 9V to 7V, 150 hours typical (continuous use)
Low Battery: Power ON indicator (green LED) when battery voltage

 7V, LED blinks when battery voltage is low

Overload Indication: Red LED ON indicates the selected range is

overloaded. Module output may not reflect the actual measurement

Dimensions (sensor):

24", 36", 48" & 60" nominal (± 1"), other lengths optional

Dimensions (Electronic Module): 4.9 x 2.5 x 1.1" (124 x 64 x 28mm)
Weight:

AmpFlex
AmpFlex
AmpFlex
AmpFlex

®

48" with battery: 0.95 lb

®

60" with battery: 1.13 lb

®

24" with battery: 0.74 lb

®

36" with battery: 0.89 lb

Connection Cable Length (sensor to module): 6.5 ft (2m)
Colors: Red sensor with dark gray connector and module, black

connection cable (sensor to module)

Drop Test: Per IEC 68-2-32
Vibration: Per IEC 68-2-6
Mechanical Shock: Per IEC 68-2-27
Weatherproofing: Module: IP40 (EN 60529)

Sensor: IP 45 (EN60529)

SENSOR SPECIFICATIONS:
Weight: 10.8oz (302.4g)
Bend Radius: 0.75" (19mm) minimum
Bending Life: >10000 without performance deterioration
Waterproofing: IP 65
Resistance to Chemicals: Resistant to oils and aliphatic hydrocarbons

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AmpFlex® - Flexible AC Current Probes

Diameter: 12mm ± 0.5mm
Outer Sheath Material: Polyurethane, UL94V0
Dielectric Strength: 7500V
Latch Spring Life: >10,000 maneuvers

MATERIAL SPECIFICATIONS
Module:

UL 94V2, Color dark gray, Polycarbonate

Sensor Latch:

Material: Lexan 500R, UL94V0

Cable Assembly to Sensor:

UL 94V0, 1000V rating

SAFETY SPECIFICATIONS

Electrical:

Double insulation or reinforced insulation between primary or secondary
and outer case per EN 61010

 600V CAT IV; 1000V CAT III
Pollution Degree 2

 7.50kV, 50/60Hz, dielectric between secondary and the outer case

Electromagnetic Compatibility

 Immunity: meets BF EN 61326-1 Industrial environment category

- Electrostatic discharge (meets EN 61000-4-2)
8kV in air – level 3 – class B
4kV on contact – level 2 – class B

- 10V/m radiated electromagnetic field (in line with EN 61000-4-3) –
class B

- Rapid transients (in line with EN 61000-4-4)
1kV – level 2 – class B

- Electric shocks (in line with EN 61000-4-5)
6kV – class B

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AmpFlex® - Flexible AC Current Probes

Instrument Compatibility

The AmpFle x® is compatible with any mu ltimeter, AC voltmeter, or
other voltage measu ring instrument with an input im pedance greater
than 1M . To a chieve the be st overall accu racy, u se the AmpF lex

®

with a AC voltmeter having an accuracy of 0.75% or better.

Operation

Please make sure that yo u have alre ady read an d fully understa nd the
WARNING section on page 2.

Making Measurements with the AmpFlex®:

 Connect the electroni c module to t he AC Volt rang e of your DM M or

measuring in strument. Select the a ppropriate module output volt age
range. If the current magnitude is un known, and if AmpFlex
ranges, select the lowest mV/A output setting.

 Wrap the flex ible core around the conductor to be t ested. If po ssible

within range, select the higher mV/A AmpFlex

®

output range to obt ain
the best re solution. Do n ot exceed specified cu rrent rang e for the
output. Do not use on selected range if overload LED goes on.

 Read the displayed valu e on the DM M and divid e it by the range

selected (i.e. if reading = 2.59V with the 10mV/A output ra nge, the
current flowing through the probe is 2590mV ÷ 10 = 259A).

 For best a ccuracy, ca refully cent er the co nductor in side the flexi ble

core, and av oid if possibl e, the prox imity of other cond uctors which
may create noise and interference (particularly near the latch).

 True RMS measurements a re obtai ned when t he Amp Flex

connected to a True RMS meter. Note that the DC component is not
measured.

Tips for Making Precise Measurements:

 When u sing the AmpFlex® with a m eter, it is impo rtant to sel ect the

range that provides the best resolution. Failure to do this may result in
measurement errors.

®

 For b est results, sel ect t he hig hest A mpFlex

and the most sensitive meter range for this output.

 Make sure the DMM or measuring instrument can accurately measure

AC. Certai n inexpensive DMM h ave poor resolution and accuracy

mV
when measuring low mV AC.

 For best accura cy, center the AmpFle x

®

measured. (See figure 2).

out put sig nal p ossible

aroun d the con ductor to be

®

has two

®

is

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AmpFlex® - Flexible AC Current Probes

®

Tips for Making Precise Measurements (continued):

 To increase the sensitivity or mea sure on low currents, the AmpFlex®

may be wrap ped several t imes around the con ductor. Remember to

divide your reading by the number of turns for the actual
measurement (see Figure 4).

 The ove rall measurement accura cy i s the sum of the AmpFl ex

accuracy and the displaying instrument accuracy.

!

ON OL

600V CAT IV

10 mV/A

1 mV/A

OFF

AmpFlex

®

®

INSTRUMENTS

®

For best accuracy center the Ampflex

Figure 2

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AmpFlex® - Flexible AC Current Probes

Tips for Making Precise Measurements (continued):

The AmpFlex® may be doubled around the conductor to be measured to
double the output. (See Figures 3 and 4 to show the different values on a
DMM while measuring 250A

AC.)

250.0 MV

250 A

ACV DCV

COM

ON OL

600V CAT IV

10 mV/A

1 mV/A

OFF

AmpFlex

®

®

INSTRUMENTS

+

!

One turn around a conductor carrying 250AAC

Figure 3

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AmpFlex® - Flexible AC Current Probes

Tips for Making Precise Measurements (continued):

500.0 MV

ACV DCV

250 A

COM

+

!

ON OL

600V CAT IV

10 mV/A
1 mV/A
OFF

®

®

INSTRUMENTS

Double the turns to double the output
in low current applications or for higher sensitivity

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Figure 4

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AmpFlex® - Flexible AC Current Probes

Typical Response Curves:

Typical Accuracy % vs. Frequency @ 100 A, 1 mV/A Output

0.00 %

-0.50 %

-1.00 %

-1.50 %

-2.00 %

-2.50 %

-3.00 %

1 Hz 10 Hz 100 Hz 1000 Hz 10 kHz 100 kHz

Frequency

Typical Accuracy % vs. Frequency @ 100 A, 10 mV/A

0.00 %

-1.00 %

-2.00 %

-3.00 %

-4.00 %

-5.00 %

-6.00 %

-7.00 %

1 Hz 10 Hz 100 Hz 1000 Hz 10 kHz

Frequency

100 kHz

%

± 10

± 9

± 8

± 7

± 6

± 5

± 4

± 3

± 2

± 1

± 0

0.1 A 0.5 A 1 A 5 A 10 A 100 A

Typical Accuracy % per Range to 100 A

20 A ... 3000 A

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Amps

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10 kA ... 30 kA

AmpFlex® - Flexible AC Current Probes

Typical Response Curves (cont.):

5¡

0¡

-5¡

-10¡

Degrees

-15¡

-20¡

-25¡

Typical Phase Shift vs. Frequency @ 200 A, 1 mV/A Output

1 Hz 10 Hz 100 Hz 1000 Hz 10 kHz 100 kHz

Frequency

3000 A

2500 A

2000 A

1500 A

Amps

1000 A

500 A

0 A

1000 Hz 10 kHz 100 kHz

Current Derating Curve (I < 3000 A)

Frequency

Current Derating Curve (I > 3000 A)

30 kA

25 kA

20 kA

15 kA

Amps

10 kA

5 kA

0 A

100 Hz 1000 Hz 10 kHz 100 kHz

Frequency

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AmpFlex® - Flexible AC Current Probes

Maintenance

Warning

 For maintenance use only specified replacement parts.

 To avoi d el ectrical shock, do not attempt to p erform a ny servicing

unless you are qualified to do so.

®

 Do not perform any service while the AmpFlex

 To avoid electrical shock and/or damage to the in strument, do not get

water or other foreign agents into the electronic module.

 Also see warning on page 2.

Battery Replacement

 If the powe r ON in dicator (g reen LE D) blinks o r does not lig ht up,

replace the battery.

®

 Remove the AmpFlex

from any circuit before replacing the battery.

 To replace the battery, open re ar case, replace b attery an d

reassemble. The gre en LED should go on when the module is t urned

on.

Cleaning

 It is importan t to keep the probe sensor latch matin g su rfaces clean

and prevent foreign bo dies from hampering the cl osing. The se nsor
may be gently cleaned with a soft cloth, soa p and wate r. Dry
immediately after cleaning. Avoid water penetration i nto the electronic
module.

 Make sure the sensor, electronic module, and all l eads are dry before

any further use.

is on any circuit.

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Limited Warranty

The AmpFlex® Probe is warranted to the owner for a period of 1 year from
the date of o riginal purcha se against de fects in manu facture. This limited
warranty is given by AEM C
was purchase d. This warranty is vo id 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-y ear period, y ou may return the
instrument to us for repair, provided we have your warranty registration
information on file or a proof of purchase. AEMC
option, repair or replace the faulty material.

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®

Instruments, not by the distributor from whom it

®

I nstruments w ill, at its

®

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 fa x from o ur Service De partment (see address be low), then retur n the
instrument along w ith the s igned CSA Form. Please write the CSA# on the
outside of the shipping c ontainer. Return the instrument, postage or
shipment pre-paid to:

Chauvin Arnoux

®

, Inc. d.b.a. AEMC® Instruments

15 Faraday Drive • Dover, NH 03820 USA
Tel: [phone] (Ext. 360)

(603) 749-6434 (Ext. 360)
Fax: [phone] or [phone]

repair@aemc. com

Caution: To protect yourself against in-transit loss, w e recomme nd you

insure your returned material.

NOTE: You must obtain a CSA# before returning any instrument.

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Chauvin Arnoux®, Inc. d.b.a AEMC® Instruments

99-MAN 100122 v18 01/15

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