Gossen MetraWatt METRACLIP 88 User Manual

 CLAMP MULTIMETER

User’s manual

ENGLISH

METRACLIP 88

Clamp Multimeter METRACLIP 88 English

CONTENTS

1

PRESENTATION............................................................................................................ 8

1.1 THE SWITCH ....................................................................................................................... 9

1.2 THE KEYS OF THE KEYPAD ........................................................................................ 10

1.3 THE DISPLAY UNIT ........................................................................................................ 11

1.3.1 The symbo ls of the displ ay unit ....................................................................... 11

1.3.2 Measurement capacity ex ceeded (O.L) .......................................................... 12

1.4 THE TERMINALS ............................................................................................................. 13

2 THE KEYS ..................................................................................................................... 13

KEY ...................................................................................................................................... 13

2.1

2.2 KEY (SECOND FUNCTION) ................................................................................................... 14

2.3 KEY ...................................................................................................................................... 15

2.4 KEY ...................................................................................................................................... 15

2.4.1 In the normal mode ......................................................................................... 15

2.4.2 The MAX/MIN/PEAK mode + activation of the HOLD mode....................... 16

2.4.3 Access to the True-INRUSH mode ( set to )................................... 16

2.5 KEY ...................................................................................................................................... 17

2.5.1 The Hz func tion in the norm al model ............................................................. 17

2.5.2 The Hz func tion + activation of the HOLD mode .......................................... 18

2.6 KEY ...................................................................................................................................... 18

3 USE .................................................................................................................................. 19

3.1 COMMISSIONING ........................................................................................................... 19

3.2 STARTING UP THE CLAMP MULTIMETER ............................................................. 20

3.3 SWITCHING THE CLAMP MULTIMETER ................................................................ 20

3.4 CONFIGURATION ........................................................................................................... 20

3.4.1 Programming of the maximum resistanc e allowed fo r a continuity.............. 21

3.4.2 De-activatio n of automatic switching off (Auto Powe r OFF) ....................... 21

3.4.3 Programming of the current threshold for the True I NRUSH measure ment 21

3.4.4 Default configuration ...................................................................................... 22

3.5 VOLTAGE MEASUREMENT (V).................................................................................. 22

3.6 CONTINUITY TEST ................................................................................................... 23

3.6.1 Automatic compensation of the resistance of the le ads ................................. 24

3.7 RESISTANCE MEASUREMENT Ω .............................................................................. 24

3.8 DIODE TEST ............................................................................................................... 25

3.9 CURRENT MEASUREMENT (A) .................................................................................. 25

3.9.1 AC measure ment ............................................................................................. 25

3.9.2 DC or AC+DC measurement .......................................................................... 26

3.10 STARTING CURRENT OR OVERCURRENT (TRUE INRUSH) MEASUREMENT
27

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English Clamp Multimeter METRACLIP 88

3.11

POWER MEASUREMENTS W, VA, VAR AND PF ..................................................... 27

3.11.1 M easurement of s ingle-phase power .............................................................. 28

3.11.2 B alanced three-ph ase power measurement .................................................... 28

“DIRECTION OF ROTATION OF THE PHASES” OR “ORDER OF THE PHASES”

3.12

MODE .................................................................................................................................... 29

3.13 FREQUENCY MEASUREMENT (HZ) .......................................................................... 30

3.13.1 Frequency measurement in voltage ................................................................ 30

3.13.2 Frequency measurement in current ................................................................ 31

3.13.3 M easurement of f requency in power .............................................................. 31

3.14 MEASUREMENT OF THE LEVEL OF HARMONICS (THD) AND OF THE

FREQUENCY OF THE FUNDAMENTAL (NETWORK) ....................................................... 31

3.14.1 M easurement of t he THD and of the f requency of the fundamenta l in voltage
32

3.14.2 M easurement of t he THD and of the f requency of the fundamenta l in current
32

4 CHARACTERISTICS .................................................................................................. 34

4.1 REFERENCE CONDITIONS ........................................................................................... 34

4.2 CHARACTERISTICS UNDER THE REFERENCE CONDITIONS ......................... 34

4.2.1 DC voltage measurement ................................................................................ 34

4.2.2 AC voltage measuremen t ................................................................................ 35

4.2.3 AC+DC voltage measurement ........................................................................ 36

4.2.4 DC curren t measuremen t ................................................................................ 37

4.2.5 AC curren t measuremen t ................................................................................ 37

4.2.6 AC+DC intensity measurement ...................................................................... 38

4.2.7 True-Inr ush measureme nt ............................................................................... 39

4.2.8 Continui ty measurement ................................................................................. 39

4.2.9 Resistance measurement ................................................................................. 39

4.2.10 D iode test ......................................................................................................... 40

4.2.11 A ctive DC power measurements ..................................................................... 40

4.2.12 A ctive AC power measurements ..................................................................... 41

4.2.13 A ctive AC+DC power measureme nts ............................................................. 42

4.2.14 M easurement of a pparent AC pow e r .............................................................. 43

4.2.15 M easurement of a pparent AC+DC power ..................................................... 43

4.2.16 M easurement of reactive AC power ............................................................... 44

4.2.17 M easurement of reactive AC+ DC power ....................................................... 45

4.2.18 Calculation of the power factor ...................................................................... 45

4.2.19 Frequency measurements................................................................................ 46

4.2.20 Characteristics in THDr ................................................................................. 47

4.2.21 Characteristics in THDf .................................................................................. 47

4.2.22 Indication of order of the phase s .................................................................... 47

4.3 ENVIRONMENTAL CONDITIONS .............................................................................. 48

4.4 CHARACTERISTICS OF CONSTRUCTION............................................................... 48

4.5 POWER SUPPLY............................................................................................................... 48

4.6 COMPLIANCE WITH INTERNATIONAL STANDARDS........................................ 48

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Clamp Multimeter METRACLIP 88 English

4.7

VARIATIONS IN THE DOMAIN OF USE .................................................................... 49

5 MAINTENANCE .......................................................................................................... 50

5.1 CLEANING......................................................................................................................... 50

5.2 REPLACEMENT OF THE BATTERIES ....................................................................... 50

5.3 METROLOGICAL CHECK ............................................................................................. 51

5.4 REPAIR ............................................................................................................................... 51

6 WARRANTY ................................................................................................................. 51

7 DELIVERY CONDITION ........................................................................................... 51

8 ADDRESSES .................................................................................................................. 52

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English Clamp Multimeter METRACLIP 88

Application or withdrawal authorized on uninsulated or bare conductors at

ng of wastes for the recycling of electrical and electronic

You have just acquired an METRACLIP 88 clamp multimeter and we thank you.

For best results from your device :

• read t his user manual attentively,

• observe the prec autions for its use.

Meanings of the symbols used on the device

Danger. The operator ag rees to ref er to this data sheet whene ver this danger
symbol is encountered.

dangerous voltages.

1.5 V battery.

The CE marking indicates compliance with European directives.

Double insulation or reinforced insulation.
Selective sorti

equipment within the European Union.
In conformity with directive DEEE 2002/96/EC: this equipment must not be

treated as household waste.
AC – Alternating current.
AC and DC – Alternating and direct current.
Earth.

Risk of electric shock.

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Clamp Multimeter METRACLIP 88 English

PRECAUTIONS FOR USE

This device complies with safety standards IEC-61010-1 and 61010-2-032 for
voltages of 1000V in cat egory IV at an altitude OF less t han 2000m , indoors, w it h a
degree of pollution not exceeding 2.
These safety instructions are intended t o ensure the safety of persons and proper
operation of the device. If the tester is used other than as specified in this data
sheet, the protection provided by the device may be impaired.

 The operator and/or the responsible authority must c arefully read and clearly

understand the various precautions to be taken in use.

 If you use this instrument other than as specified, t he protection it provides

may be compromised, thereby endangering you.

 Do not use the instrument in an explosiv e atmosphere or in the presence of

flammable gases or fumes.

 Do not use the instrument on networks of which the voltage or category

exceeds those mentioned.

 Do not exceed the rated maximum voltages and currents between terminals

or with respect to earth.

 Do not use the instrument if it appears to be damaged, incomplete, or not

properly closed.

 Before each use, check the condition of the insulation on the leads, housing,

and accessories. Any element of which the insulation is deteriorated (even
partially) must be set aside for repair or scrapped.

 Use leads and accessories rated f or voltages and c ategories at least equal to

those of the instrument. If not , an accessory of a lower category lowers t he
category of the combined Clamp + accessory to that of the accessory.

 Observe the environmental conditions of use.
 Do not modify the instrument and do not replace components with

"equivalents". Repairs and adjustments must be done by approved qualified
personnel.

 Replace the batteries as soon as the

unit. Disconnect all cords before opening the battery compartment cover.

 Use personal protective equipment when conditions require.
 Keep your hands away from the unused terminals of the instrument.

6

symbol appears on the display

English Clamp Multimeter METRACLIP 88

 When handling the test probes, crocodile clips, and clamp ammeters, keep

your fingers behind the physical guard.

 As a safety measure, and to avoid repeat ed overloads on the inputs of the

device, we recommend performing configuration operations only when the
device is disconnected from all dangerous voltages.

MEASUREMENT CATEGO RIES

Definiti ons of t he m e a surement c a t e gories :
CAT II: Circuits directly connect ed to the low-voltage installation.

Example: power supply to household electrical appliances and portable tools.

CAT III: Power supply circuit s in the installation of the building.

Example: distribution panel, circuit-breakers, fixed industrial machines or devices.

CAT IV: Circuits supplying the low-voltage installation of the building.

Example: power lines, meters, and protection devices.

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Clamp Multimeter METRACLIP 88 English

1

3

2

7

Jaws with centring marks

1 PRESENTATION

The METRACLIP 88 is a professional electrical measuring instrument that
combines the following functions:

 Current measurement;
 Measurement of inrush current / overcurrent (True-Inrush);
 Voltage measurement;
 Frequency measurement;
 Measurement of level of harmonics (THD)
 Continuity test with buzzer;
 Resistance measurement;
 Diode test;
 Power measurements (W, VA, var and PF);
 Indication of the order of the phases.

Item

1

(see connection principles)

2 Physical guard ­3 Switch 1.1
4 Function keys 2

4

5

5 Display unit 1.3
6 Terminals 1.4
7 Trigger -

Designation See §

3.5 to

3.14

6

Figure 1 : the METRACLIP 88 clamp mult im e t e r

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English Clamp Multimeter METRACLIP 88

1 2 3

4

5

6

1.1 THE SWITCH

The switch has six positions. To access the , , , , , functions,
set the switch to the desired function. Each setting is confirmed by an audible
signal. The functions are described in the table below.

Figure 2 : the switch

Item Function See §

1 OFF mode – Switches the clamp multimeter off 3.3
2 AC, DC, AC+DC voltage measurement (V) 3.5
3 Continuity test

Resistance measurement Ω

Diode test
4 AC, DC, AC+DC current measurement (A) 3.9
5 Power measurements (W, var, VA) and calculation of the

power factor (PF) AC, DC, AC+DC

6

Indicator of the order of the phases 3.12

3.6

3.7

3.8

3.11

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Clamp Multimeter METRACLIP 88 English

1.2 THE KEYS OF THE KEYPAD

Here are the six keys of the keypad :

1 2 3

4 5 6

Figure 3 : the keys of the keypad

Item Function See §

1 Storage of values, disabling of display

Zero correction A

Compensation of the resistance of the leads in the

continuity and ohmmeter function

2 Selection of the type of measurement (AC, DC, AC+DC)

Selection of single-phase or three-phase measurement
3 Activation or de-activation of the backlighting

of the display unit

4 Activation or de-activation of the MAX/MIN/PEAK mode

Activation or de-activation of the INRUSH mode in A
5 Measurements of frequency (Hz), of the level of harmonics

(THD)

Display of the powers W, VA, var and PF
6 Activation of the ΔREL mode – Display of relative and

differential values

DC/AAC+DC/WDC/WAC+DC

10

2.1

3.9.2

3.6.1

2.2

2.3

2.4

2.5

2.6

English Clamp Multimeter METRACLIP 88

Symbol

Designation

AC

Alternating current or voltage

DC

Direct current or voltage

AC+DC

Alternating and direct current or vo ltage

∆REL

Relative value, with respect to a reference

∆Ref

Storage of the values and hold of the display

4

1.3 THE DISPLAY UNIT

Here is the display unit of the cl a mp multimeter:

5

Item Function See §

1 Display of the modes selected (keys) 2
2 Display of the measurement value and unit 3.5 to 3.12
3 Di splay o f the MA X / MIN/PEAK modes 2.4
4 Type of measurement (AC or DC) 2.2
5 Total three-phase power measuremen ts 3.11.2
6 Display of the selected modes (switch) 3.5
7 Spent battery indication 5.2

7

6

1

2

3

Figure 4 : the display unit

1.3.1 The symbols of the display unit

Reference value

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Clamp Multimeter METRACLIP 88 English

Max

Min

Minimum RMS value

Peak+

Maximum peak value

Peak-

Minimum peak value

Balanced total three-phase power measurement

V

Hz

Hertz

W

Watt

A

Ampere

%

Percentage

Ω

Ohm

m

Milli- prefix

k

Kilo- prefix

var

Reactive power

VA

Apparent power

PF

THDf

Total harmonic distortion with respect to the fundamental

Total harmonic distortion with respect to the true RMS
Compensation of the resistance of the leads

Continuity test

Diode test

Permanent display (automatic switching off de-activated)

Spent battery indicator

Maximum RMS value

Volt

Power factor

THDr

value of the signal.

Indicator of order to the phases

The display of “rdy”, for “ready”, indicates that the device is ready (“Indicator of
order of the phases” function).

1.3.2 Measurement capacity exceeded (O.L)

The O.L (Over Load) symbol is displayed when the display capacity is exceeded.

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English Clamp Multimeter METRACLIP 88

1.4 THE TERMINALS

The terminals are used as follows:

Item Function

1 Cold terminal (COM)
2 Hot terminal (+)

1 2

Figure 5 : the term ina ls

2 THE KEYS

The keys of the keypad respond differently to short, long, and sustained presses.
The

acquisition of parameters complementary to the usual elementary measurements.

- Each of these keys can be used independently of the others or in perfect
complementarity with them: this makes navigation simple and intuitive for
looking up all measurement results.

- It is possible, for example, to look up in turn the MAX, MIN, etc. values of the
RMS voltage alone, or else look up in turn all of t he MAX (or MIN, or PEAK)
values of all power results (W, VA, var, etc.).

In this section, the icon represents the possible positions of the switch for which
the key concerned has some action.

, and keys provide new functions and allow the detection and

2.1

This key is used to:

KEY

 store and look up the last values acquired specific to each function (V, A, Ω,

T°) according to the specific modes previously activated (MAX/MIN); the
present display is then maintained while the detection and acquisition of new
values continues;

 perform automatic compensation of the resistance of the leads (see also §

3.6.1

3.9.2

) ;

)

AC+DC

et WDC/

(see also §

AC+DC

 perform an automatic zero correction in ADC/

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Clamp Multimeter METRACLIP 88 English

ADC

to perform automatic compensation of the

Remark : the key is invalid for the “Indication of order of phases” function.

Successive
presses on

short

Long (>2 sec)

Sustained

A

W

AC+DC

W

AC+DC

1. to store the results of the present
measurements

2. to hold the display of the last value displayed

3. to return to normal display mode (the value of
each new measurement is displayed)

to perform automatic compensation of the zero
(see § 3.9.2

Remark : this mode operates if the MAX/M IN/ PEAK or

DC

HOLD modes (short pres s) are first desactivated

resistance of the leads (see 3.6.1)

… serve

)

See also § 2.4.2 and § 2.5.1 for the action

key with the action of the key

and with the action of the key.

2.2 KEY (SECOND FUNCTION)

This key is used to select the type of measurement (AC, DC, AC+DC) and the
second functions marked in yellow next to the relevant positions of the switch.

It can also be used, in the configuration mode, to modify the default value (see §3.4)

Remark: the key is invalid in the MAX/MIN/PEAK, HOLD and ΔREL modes.

Successive

presses on

short

-to select AC, DC or AC+DC . Depend i ng on your choice, the
screen displays AC, DC or AC+DC

… serve

-to cycle through the Ω and diode test modes and to return
to the continuity test

- to reset the measurement process for the “indicator of order
of rotation of the phases” function.

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English Clamp Multimeter METRACLIP 88

Long (>2 sec)

- to display the total three-phase power of a balanced system
(

is displayed).

- by pressing again, to return to display of the single-phase
power ( is off)

2.3 KEY

This key is used to backlight the display unit.

Successive

presses on

-to activate or de-activate the backlighting of the
screen

… serve

Remark: the backlighting is switched off automatically at the end of 2 minutes.

2.4 KEY

2.4.1 In the no rmal mode

This key activates detection of the MAX, MIN, PEAK+ and PEAK- values of the
measurements made.
Max and Min are the extreme mean values in DC and the extre me RM S value s in AC.
Peak+ is the maximum instantaneous peak and Peak- the minimum instantaneous
peak.

Remark : in this mode, the "automatic switching off" function of the device is

automatically de-activated. The

symbol is displayed on the screen.

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Clamp Multimeter METRACLIP 88 English

-to activate detection of the MAX/MIN/PEAK values

from the mode (the values already detected are not erased)

Successive presses

on

long (> 2 sec)

short

-to display the MAX, MIN, PEAK+ or PEAK- value successively

-to return to display of the pre sent measurem ent without e xiting
from the mode (the values already detected are not erased)

Remark: the M AX, MIN, PEAK+, PEAK- symbols ar e b ot h di sp la yed , b ut

only the sym bol of the quantity selected blinks.

Example: If MIN has been selected, MIN blinks and MAX, PEAK+, PEAK-

are lit steadily.

-to activate detection of the MAX/MIN values

-to display the MAX or MIN value successively

-to return to display of the pre sent measurem ent without e xiting

to exit from t he MAX/MIN/PEAK mode. The values pre viousl y

recorded are then erased.

Remark: if the HOL D functi on is ac tiv at ed, it is not pos si ble t o e xit fr om

the MAX/MIN/PEAK mode. T he HOLD function must first be de-activated.

… serve

Remark : ΔREL function can be used with the functions of the MAX/MIN/PEAK
mode.

2.4.2 The MAX/MIN/PEAK mode + activation of the HOLD mode

Successive presses

on

short

to display successively the MAX/MIN/PEAK values
detected before the

… serve

key was pressed.

Note : the HOLD function does not interrupt the acquisition of new MAX, MIN,
PEAK values.

2.4.3 Access to the True-INRUSH mode ( set to )

This key allows measurement of the True-Inrush current (starting current, or
overcurrent in steady-state operation) for AC or DC current only (not operational in
AC+DC).

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English Clamp Multimeter METRACLIP 88

a short press is

been detected.

sequence.

to display:

Successive

presses on

long (>2 sec)

short (<2 sec)

Note:

function al only if an

True-Inrus h value has

to enter the True-INRUSH mode

-"Inrh" is displayed for 3s (the backlighting blinks)

-the triggering threshold is displayed for 5s (the
backlighting is steady);

-"------" is displayed and the "A" symbol flashes

-after detection and acquisition, the inrush
current measurement is displayed, after the
calculations stage "------" (backlighting off)

Remark: the A symbol f lashes to indicate "surveillance"

of t he signal.

to exit from the True-INRUSH mode (return to

simple current measurement).

-to display the PEAK+ value of the current

-to display the PEAK- value of the current

-to display the RMS true-Inrush current

Remark: t he A symbol is displayed steadil y during this

…serves

2.5

KEY

This key is used to display the frequency measurements of a signal, of the power,
and of the level of harmonics.

Remark : this button is not functional in DC.

2.5.1 The Hz function in the normal model

Successive

presses on

short

-the frequency of the signal measured

-the present voltage (V) or current (A)
measurement

17

…serves

Clamp Multimeter METRACLIP 88 English

to display:

- the active power (W)

- to select THDf, THDr or the frequency of the
fundamental

-the apparent power (VA)

- the reactive power (var)

- the power factor (PF)

- the frequency of the signal

long

then s hort

- to enter or exit from the level of harmonics

(THD) calculation and display mode

fundamental

2.5.2 The Hz function + activation of the HOLD mode

Successive

presses on

short

-to store the frequency

-to display successively the stored frequency,
then the voltage or the current

- to display in turn the stored values of THDf,

then of THD

…serves

, then of the frequency of the

r

2.6 KEY

This key is used to display and store the reference value or to display the diferential
and relative value, in the unit of magnitude measured or in %.

Remark : in phasis rotation mode, the

key is not operating.

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English Clamp Multimeter METRACLIP 88

Successive

presses on

short

- to enter the ΔREL mode, to store then display the reference
value. The Δ

- to display the diferential value:

- (current value – reference (∆))
The ΔRE L symbo l is di splaye d.

- to display the relative value in %

curr ent value – reference (∆)

Ref symbol is displayed.

…serve

reference (∆)

The ΔREL and % symbols ar e displayed.

- to display the reference. The ΔR e f symb o l i s disp l ayed

- to display the current value. The ΔRef symbol blinks.

long (>2 sec)

to exit from the ΔREL mode

Remark : the “Relative m ode ΔREL” funct ion can be us ed with t he functions of t he
MAX/MIN/PEAK mode.

3 USE

3.1 COMMISSIONING

Insert the batteries supplied with the device as follows:

1. Using a screwdriver, unscrew the screw of the battery compartment cover
(item 1) on the back of the housing and open it.

2. Place t he 4 batteries in the compartment (item 2), taking care to get the
polarities right.

3. Close the battery compartment cover and screw it to the housing.

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Clamp Multimeter METRACLIP 88 English

2

1

Figure 6 : the battery compartment cover

3.2 STARTING UP THE CLAMP MULTIMETER

The switch is set to OFF. T urn the sw itch to t he function of your choice. The whol e
display lights (all symbols) for a few seconds (see §1.3
function chosen is displayed. The clamp multimeter is then ready to make
measurements.

), then the sc reen of t he

3.3 SWITCHING THE CLAMP MULTIMETER

The clamp multimeter can be sw itched off either manually, by set ting the sw itch to
OFF, or automatically, after ten minutes with no action on the switch and/or the
keys. Thirty (30) seconds before the device is switched off, an audible signal
sounds intermittently. To re-activate the device, press any key or turn the switch.

3.4 CONFIGURATION

As a safety measure, and to avoid repeate d overloads on the inputs of the dev ice,
we recommend performing configuration operations only when the device is
disconnected from all dangerous voltages.

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English Clamp Multimeter METRACLIP 88

3.4.1 Programming of the maximum resistance allowed for a continuity

To program the maximum resistance allowed for a continuity

1. From the OFF position , hold the
until the "full screen" display ends and a beep is emitted, to enter the

,

key down while turning the s witch to

configuration mode. The display unit indicates the value below w hich the
buzzer is activated and the

symbol is displayed.
The value stored by default is 40Ω. The possible values lie between 1Ω
and 999Ω.

2. To change the threshold, press the
each press on the
long press (>2s) to the

key increments it. To shift to the next digit, apply a

key.

key. The right-hand digit f lashes:

To exit from the programming mode, turn the switch to another setting. The
detection threshold chosen is stored (emission of a double beep).

3.4.2 De-activation of automatic switching off (Auto Power OFF)

To de-activate automatic switching off:

In the OFF position, hold the

, until the "full screen" display ends and a beep is emitted, to enter the

configuration mode. The

ke y down while t urning the switch to

symbol is displayed.

When the

key is released, the device is in the voltmeter function in

the normal mode.
The return to Auto Power OFF takes place when the clam p is switched

back on.

3.4.3 Programming of the current t hreshold for the True INRUSH measurement

To program the triggering current threshold of the True INRUSH measurement:

1. in the OFF position, hold the key down while turning the switch to
, until the "full screen" display ends and a beep is emitted, to enter the

configuration mode. The display unit indicates the percentage overshoot to
apply to the m easured current to determine the measurement triggering
threshold.
The value stored by default is 10%, represent ing 110% of the established
current measured. The possible values are 5%, 10%, 20%, 50%, 70%,
100%, 150%, and 200%.

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Clamp Multimeter METRACLIP 88 English

2. To change the threshold, press the

press on the

key displays the next value. To record the chosen

threshold, apply a long press (>2s) on the

key. The value flashes: each

key. A confirmation beep is

emitted.

To exit from the programming mode, turn the switch to another setting. The chosen
threshold is stored (emission of a double beep).

Note: The starting current measurement triggering threshold is fixed at 1% of the
least sensitive range. This threshold is not adjustable.

3.4.4 Default configuration

To reset the clamp to its default parameters (factory configurat ion):

In the OFF position, hold the

until the "full screen" display ends and a beep is emitted, to enter the

,

configuration mode. The "rSt" symbol is displayed.

ke y down while t urning the switch to

After 2 s, the clamp emits a double beep, then all of the symbols of the
screen are displayed until the

key is released. The default parameters

are then restored:

Continuity detection threshold =40 Ω
True Inrush triggering threshold =10%

3.5 VOLTAGE MEASUREMENT (V)

To measure a voltage, proceed as follows :

1. Set the switch to

2. Connect t he black lead to the COM terminal and the red lead to "+".

3. Place t he test probes or the croc odile clips on the term inals of the circuit

to be measured. The device selects AC or DC automatically according to
which measured value is larger. The AC or DC symbol lights in blinking

mode.
To select AC, DC or AC+DC manually, press the yellow key to reac h the desired
choice. The symbol corresponding to the choice made then lights in fixed mode.

;

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English Clamp Multimeter METRACLIP 88

The measured value is displayed on the screen.

3.6 CONTINUITY TEST

Warning : Before performing the test, make sure that the circuit is off and any
capacitors have been discharged.

1. Set the switch to ; the symbol is displayed ;

2. Connect t he black lead to the COM terminal and the red lead to «+».

3. Place the test probes or the crocodile clips on the terminals of the
circuit or component to be tested.

An audible signal is emitted if there is continuity, and the measured value is
displayed on the screen.

23

Clamp Multimeter METRACLIP 88 English

3.6.1 Automatic compensation of the resistance of the leads

Warning : before the compensation is executed, the MAX/MIN and HOLD modes
must be de-activated.

To perform automatic compensation of the resistance of the leads, proceed as
follows:

1. Short-circuit the leads connected to the device.

2. Hold the

key down until the display unit indicates the lowest

value. The device measures the resistance of the leads.

3. Release the
displayed. The value displayed is stored.

key. The correction and the symbole are

Remark : the correction value is stored only if it is
≤ 2 Ω. Above 2 Ω, the value displayed blinks and is not stored.

3.7 RESISTANCE MEASUREMENT Ω

Warning : Before m aking a resistance measurement, make sure that the circuit is
cold and any capacitors have been discharged.

1. Set the switch to
displayed;

2. Connect t he black lead to the COM terminal and the red lead to « + »;

3. Place the test probes or the crocodile clips on the terminals of the
circuit or component to be measured ;

and press the key. The Ω symbol is

The measured value is displayed on the screen
Remark : t o measure low resistanc e values, first carry out the compensation of the

resistance of the leads (see § 3.6.1

).

24

English Clamp Multimeter METRACLIP 88

3.8 DIODE TEST

Warning: Before performing the diode test, make sure that the circuit is cold and
any capacitors have been discharged.

1. Set the switch to and press the key twice. The symbol is
displayed.

2. Connect t he black lead to the COM terminal and the red lead to «+».

3. Place the test probes or the crocodile clips on the terminals of the
component to be tested.

The measured value is displayed on the screen.

3.9 CURRENT MEASUREMENT (A)

The jaws are opened by press ing the trigger on the bod y of the device. The arrow
on the jaws of the clamp (see the diagram below) must point in the presumed
direction of flow of the current, from the generator to the load. Make sure that the
jaws have closed correctly.

Remark: the measurement results are optimal w hen the conductor i s c entred in the
jaws (aligned with the centring marks).

The device automatically selects AC or DC according to which measured value is
larger. The AC or DC symbol blinks.

3.9.1 AC measurement

For an AC current measurement, proceed as follows:

1. Set the switch to
symbol is displayed.

2. Encircle only the conductor concerned with the clamp ;

and select AC by pressing the key. The AC

25

Clamp Multimeter METRACLIP 88 English

The measured value is displayed on the screen.

3.9.2 DC or AC+DC measurement

To measure the DC or AC+DC cur rent, if the display unit does not indic ate "0", first
correct the DC zero as follows:

Step 1 : to correc t t he DC ze ro

Important : The clamp must not be closed on the conductor during the DC zero
correction. Hold the clamp in t he same pos ition during the whole pr ocedure so t hat
the correction value will be exact.
Press the
"0". The correction value is stored until the clamp is powered down.

Remark : the correction is effected only if the value displayed is < ± 20 A,
otherwise the value displayed blinks and is not stored. The clamp must be
recalibrated (see §5.3

Step 2 : to make a measurement

1. The switch is set to

2. Appl y the clamp to only the conductor concerned.

key until the devi ce emits a double beep and displays a value near

)

. Select DC or AC+DC b y pressing t he yellow

key until the desired choice is reached.

26

English Clamp Multimeter METRACLIP 88

The measurement is displayed on screen.

3.10 STARTING CURRENT OR OVERCURRENT (TRUE INRUSH) MEASUREMENT

Remark : the measurement can be made only in AC or DC mode (AC+DC mode
disabled)

To measure a starting current or overcurrent, proceed as follows:

1. Set the switch to , correct the DC zero (§ 3.9.2), then apply the
clamp around the single conductor concerned.

2. Eff ect a long press on the key. The InRh symbol is displayed,
then the triggering threshold. The clamp then awaits detection of the
True-Inrush current.
"------" is displayed and the "A" symbol flashes.

3. Aft er det ection and acquis ition for 100 ms , the RMS value of t he True­Inrush current is displayed, along with the PEAK+/PEAK- values
subsequently.

4. A long press on the
from the True-Inrush mode.

key or a change of func tion leads to exiting

Remark : t he triggering t hreshold in A is 20A if t he initial current is zero (starting of
installation); it is that set in the configurat ion (see §3.4.3

) for an established current

(overload in a installation).

3.11 POWER MEASUREMENTS W, VA, VAR AND PF

This measurement is possible en single-phase or in balanced three-phase.
Reminder : in DC or AC+DC power measurement, first correct the DC zero in

current (see § 3.9.2

, step 1)

27

Clamp Multimeter METRACLIP 88 English

…and the black lead is

connected

…then the clamp is on

the conductor

To the L1 phase

to the L2 phase

of the L3 phase

To the L2 phase

to the L3 phase

of the L1 phase

To the L3 phase

to the L1 phase

of the L2 phase

For the power factor (PF) and the powers VA and var, the measurement is possible
only in AC o r A C+DC.

3.11.1 Measurement of single-phase power

1. Set the switch to and select VA, var, or PF by pres sing the
key until the desired choice is reached;

2. The device automatically displays AC+DC. To select AC, DC, or
AC+DC, press the

key until the desired choice is reached.

3. Connect t he black lead to the COM terminal and the red lead to "+";

4. Place t he test probes or the crocodile c lips of the black lead on the
neutral (N), then those of the red lead on the L phase.

5. Clamp only the corresponding conductor, respecting the direction;

The measurement is displayed on screen.

3.11.2 Balanced three-phase power measurement

1. Set the switch to and select VA, var, or PF by pres sing the

2. Press the yellow key until the

3. The device automatically displays AC+DC. To select AC, DC, or

4. Connect t he black lead to the COM terminal and the red lead to "+";

5. Connect t he leads and the clamp to the circuit as follows:

If the red lead is connected…

key until the desired choice is reached

symbol is displayed.

AC+DC, press the yellow

key until the desired choice is reached.

28

English Clamp Multimeter METRACLIP 88

Reminder : the arrow on the jaws of the clamp (see the diagram below) must point

in the presumed direction of flow of the current from the source (producer) to the
load (consumer)

The measurement is displayed on screen.
Remark : You can also measure the three-phase power on a balanced 4-wire

network by proceeding in the same way, or by proceeding as for the measurement
on a single-phase network, then multiplying the value found by three.

“DIRECTION OF ROTATION OF THE PHASES” OR “ORDER OF

3.12
THE PHASES” MODE

This mode is used to determine the order of the phases of a three-phase network
by the "2-wire" method.

To determine the order of the phases, proceed as follows:

Step 1: determination of a "reference" period:

1. Set the switch to . The rdy symbol is displayed; the device is
ready for the first phase order determination measurement;

2. Connect t he black lead with crocodile clip to the COM t erminal and
the red lead with test probe to "+";

3. Connect t he crocodile clip to the presumed L1 phase and apply the
red test probe to the presumed L2 phase;

4. Press the yellow

key. The ref symbol blinks on the screen. The
instrument is ready to determine the reference period. When the
reference period has been determined, an audible signal sounds and
the ref and

symbols are displayed.

Remark : if the reference per iod has not been determined, the dev ice emi ts a beep
and displays the "Err Hz" or "ErrV" message. T he symbol flashes , then the "rdy"
message is displayed on the screen. Repeat the procedure from 4.

29

Clamp Multimeter METRACLIP 88 English

Step 2: determination of a "measurement" period:

Within the next 10 seconds, apply the test probe to the presumed L3
phas e. The "MEAS" indication then blinks on the display unit as soon as
t he L2 phase is disconnected; the device is in the calculation phase.

Remark: if the measurement period has not been determ ined, the device emits a
beep and displays the "Err Hz" or "ErrV" message, then "rdy". Repeat the
procedure from 4.
Result: when the order of the phases has been determined, the device emits a
beep and the indication of order of the phases is displayed on the screen, as
follows:

 0.1. 2.3 when the directio n of rotation is direct. The "0" symbol blinks and
turns clockwise;
 0.3. 2.1 when the direction of rotation is reversed. The "0" symbol blinks
and turns anticlockwise.

Remark: if t he order of the phases has not been determined, the device emits a
beep and displays the "Err" message. Repeat the procedure from 4.

3.13 FREQUENCY MEASUREMENT (HZ)

The frequency measurement is available in V, W and A for AC and AC+DC
quantities. The measurement is based on a count of the passages of the signal
through zero (positive-going edges).

3.13.1 Frequency measurement in voltage

To measure the frequency in voltage, proceed as follows:

1. Set the switch to and press the key. The Hz symbol is
displayed.

2. Select AC or AC+DC b y pressing the yellow

key until the desired

choice is reached.

3. Connect t he black lead to the COM terminal and the red lead to “+”.

4. Place the test probes or the crocodile clips on the terminals of the
circuit to be measured.

30

English Clamp Multimeter METRACLIP 88

The measured value is displayed on the screen.

3.13.2 Frequency measurement in current

1. Set the switch to and press the key. The Hz symbol is
displayed.

2. Select AC or AC+DC b y pressing the yellow

key until the desired

choice is reached.

3. Encirc le only the conductor concerned with the clamp.

The measured value is displayed on the screen.

3.13.3 Measurement of frequency in power

In the single-phase AC or AC+DC Power (W) setting, it is possible to display the
frequency of the voltage of the signal on the terminals.

In the balanced three-phase AC or AC+DC Power (W) setting, it is possible to
display the frequency of the phase-to-phase voltage of the signal on the terminals.

31

Clamp Multimeter METRACLIP 88 English

3.14 MEASUREMENT OF THE LEVEL OF HARMONICS (THD) AND OF THE FREQUENCY OF THE FUNDAMENT AL (NETWORK)

The device measures the t otal harmonic distortion with res pect to the fundamental

) and the total harmonic distortion with respect to the true RMS value of the

(THD

f

signal (THD

) in voltage and in current. Si milarly, it determ ines the frequenc y of the

r

fundamental by digital filtering and FFT, for netw ork frequencies of 50, 60, 40 0, and
800Hz.

3.14.1 Measurement of the THD and of the frequency of the

fundamental in voltag e

1. Set the switch to and press and hold (>2s) the key. The

THD

symbol is displayed. To select THDr, press the ke y again.

f

The THD
fundamental, press the

2. Connect t he black lead to the COM terminal and the red lead to «+»;

3. Place the test probes or the crocodile clips on the terminals of the
circuit to be measured;

symbol is displayed. To select the frequency of the

r

key again. The Hz symbol is displayed.

The measurement is displayed on screen.

3.14.2 Measurement of the THD and of the frequency of the fundamental in current

1. Set the switch to and press and hold (>2s) the key. The

THD

symbol is displayed. To select THDr, press again. The

f

symbol is displayed. To select the frequency of the fundamental,

THD

r

press the

2. Appl y the clamp to only the conductor concerned.

key again The Hz symbol is displayed.

32

English Clamp Multimeter METRACLIP 88

The measurement is displayed on screen.

33

Clamp Multimeter METRACLIP 88 English

0.00 V to

99.99 V

100.0 V to

999.9 V

Specified
measurement range

from 0.00V to 9.99V

±(1% R +3 pt)

Resolution

0.01V

0.1V

1V

Input impedance

10MΩ

4 CHARACTERISTICS

4.1 REFERENCE CONDITIONS

Quantities of influence Reference conditions
Temperature: 23°C ±2°C
Relative humidity: 45% to 75%
Supply voltage: 6.0V ±0.5V
Frequency range of the applied signal: 45–65Hz
Sine wave: pure
Peak factor of the applied alternating signal: √2
Position of the conductor in the clamp: centred
Adjacent conductors: none
Alternating magnetic field: none
Electric field: none

4.2 CHARACTERISTICS UNDER THE REFERENCE CONDITIONS

The uncertainties are expressed in ± (x% of the reading (R) + y points (pt)).

4.2.1 DC voltage measurement

Measurement range

Uncertainties

0 to 100% of the measurement range

±(1% R + 10 pt)

from 10.00V to

99.99V

1000 V (1)

±(1% R +3 pt)

34

English Clamp Multimeter METRACLIP 88

Measurement
range

0.15 V to

99.99 V

100.0 V to

999.9 V

1000V RMS

1400V peak (1)

Specified
range (2)

from 0.15V to 9.99V

± (1% R +3 pt)

Resolution

0.01V

0.1V

1V

Input impedance

10MΩ

Note (1) - The display i ndicates "+OL" above +2000V and "-OL" below – 2000V in
REL mode

- Above 1000V, a repetitive beep indicates that the voltage being

measured is greater than the safety voltage for which the device is
guaran t eed. The display indicates "OL"

4.2.2 AC voltage measurement

measurement

± (1% R + 10 pt)

Uncertainties

Note (1) - The display indicates "OL" above 1400V (in PEAK mode).

- Above 1000V, a repetitive beep indicates that the voltage being

measured is greater than the safety voltage for which the device is
guaran t eed. The display indicates "OL".

- Bandwidth in AC = 3 kHz

Note (2) Any value between zero and the min. threshold of the measurement range

(0.15V) is forced to "----" on the display.

from 10.00V to

0 to 100% of the measurement range

± (1% R +3 pt)

99.99V

35

Clamp Multimeter METRACLIP 88 English

0.15 V to

99.99 V

100.0 V to

999.9 V

1000V RMS (1)

1400V peak

Specified measurement
range

Uncertainties

from 0.15V to 9.99V

± (1% R +3 pt)

Resolution

0.01V

0.1V

1V

Input impedance

10MΩ

4.2.3 AC+DC voltage measurement

Measurement range (2)

0 to 100% of the measurement range

± (1% R+10 pt)

from 10V to 99.99V

± (1% R +3 pt )

Note (1) - The display indicates "OL" above 1400V (in PEAK mode).

- Above 1000V (DC or RMS), a repetitive beep indicates that the voltage

being m easured is greater than t he safety voltage for which the device is
guaranteed.

- Bandwidth in AC = 3 kHz

Note (2) - Any value between zero and the min. threshold of the measurement
range ( 0. 15V) is forced to "----" on the display.

Specific c ha racteris t ic s in MAX/MIN m ode in voltage (from 10 Hz to 1 kHz, in
AC and AC+DC and from 0.30V):

• Uncertainties: add 1% R to the values in the tables above.

Specific character istics in PE AK mode in voltage (from 10 Hz to 400 Hz in AC
and AC+DC):

• Capture time of the extrema: approximately 100ms.

• Uncertainties: add 1.5% R to the values in the tables above.

• PEAK capture time: 1ms min. to 1.5ms max.

36

English Clamp Multimeter METRACLIP 88

Measurement
range (2)

0.00 A to

99.99 A

100.0 A to

999.9 A

Specified
range

Uncertainties

until 2000A

± (3.5% R+3 pt)

Resolution

0.01A

0.1A

1A

Measurement range
(2)

0.15 A to

99.99 A

100.0 A to

999.9 A

1000 A to 2000 A

(1)

Specified
measurement range

Uncertainties

± (1% R + 10 pt)

± (1% R +3 pt)

± (1,5% R +3 pt)

Resolution

0.01A

0.1A

1A

4.2.4 DC current measurement

1000 A to 3000 A (1)

Note (1) -The display indicates “+OL" above 6000A and "-OL" below –6000A in
REL m ode. The “-“ and “+” signs are managed (polarity).

Note (2) - The residual current at zero depends on the remanence; It can be
c orr ec t ed by the “DC zero” function of the HOLD key.

4.2.5 AC current measurement

Note (1) - The display indicat es "OL" above 3000A in PEAK mode. The "-" and "+"
signs are not managed.

- Bandwidth in AC = 1 kHz

Note (2) - Any value between zero and the min. threshold of the measurement
range (0.15V) is forced to “----“ on the display.

measurement

(2)
(zero corrected)

± (1% R+10 pt) ± (1% R +3 pt)

- Residual current at zero <150mA.

0 to 100% of the measurement range

± (1.5% R +3 pt)

from 2000A

2500A
± (2.5% R+3 pt)
from 2500A

3000A

0 to 100% of the measurement range

DC:

DC:

DC

DC

to

to

37

Clamp Multimeter METRACLIP 88 English

AC: 1000 A to 2000 A

3000 A (1)

Specified
range

Uncertainties

until 2000A

± (3.5% R+3 pt)

Resolution

0.01A

0.1A

1A

4.2.6 AC+DC intensity measurement

Measurement
range (2)

0.15 A to

99.99 A

100.0 A to

999.9 A

DC or PEAK: 1000 A to

Note (1) - In DC, the display indicates "+OL" above +6000A and "+-OL" above ­ 6000A in REL mode. The "-" and "+" signs are managed (polarity).

- In AC and AC+DC, the display indicates "+OL" above 3000A in
PEAK m ode. Th e " -" and "+" signs are not managed.

- Bandwidth in AC = 1 kHz
Note (2) - In AC, any value between zero and the min. threshold of the

m eas u rem ent range (0.15A) is forced to "----" on the display.

- Residual current at zero:

Specific characteristics in MAX/MIN mode in current (from 10 Hz to 1 kHz, in
AC and AC+DC and from 0.30 A):

Specific character istics in P EAK mode in current (from 10 Hz to 400 Hz in AC
and AC+DC):

measurement

(2)
(zero corrected)

•

In DC: depends on the remanence. Can be corrected by the "DC

zero" function of the HOLD key

•

In AC: <150mA

• Uncertainties (zero corrected): add ± (1% R) to t he values in the

tables above.

• Capture time of the extrema: approximately 100ms.

• Uncertainties: add 1.5% R +0.5A to the values in the tables

above.

• PEAK capture time: 1ms min. to 1.5ms max.

0 to 100% of the measurement range

± (1% R+10 pt)

± (1% R +3

pt)

± (1.5% R +3 pt)

DC:

DC

to

from 2000A

2500A
± (2.5% R+3 pt)
from 2500A

3000A

DC:

DC

to

38

English Clamp Multimeter METRACLIP 88

Measurement range

20 A to 2000 A AC or 3000 A DC

Specified measurement range

0 to 100% of the measurement range

Uncertainties

± (5% R + 5 pt)

Resolution

1 A

Measurement range

0.0Ω to 999.9 Ω

Open-circuit voltage

≤ 3,6 V

Measurement current

550 µA

Uncertainties

± (1% R +5 pt)

Buzzer triggering threshold

Adjustable from 1Ω to 999Ω (40Ω is the default)

0.0 Ω to

999.9 Ω

1000 Ω to

9999 Ω

10.00 kΩ to

99.99 kΩ

1 to 100% of the

range

Uncertainties

± (1% R +5 pt)

Resolution

0.1Ω

1Ω

10Ω

Open-circuit voltage

≤ 3,6 V

Measurement current

550µA

100µA

10µA

4.2.7 True-Inrush measurement

Specific characte ristics in PE AK mode in True-Inrush (from 10 Hz to 400 Hz in

AC):

• Uncertainties: add ± (1.5% R+0.5A) to the values in the tables above.

• PEAK capture time: 1ms min. to 1.5ms max.

4.2.8 Continui ty me a sure ment

4.2.9 Resistance measurement

Measurement range (1)
Specified measurement

range

Note (1) - Above the maximum display value, the display unit indicates "OL".

- The "-" and "+" signs are not managed.

Specific c ha racteris t ic s in MAX/MIN m ode :

measurement

• Uncertainties: add 1% R to the values of the table above.

• Capture time of the extrema: approximately 100ms.

0 to 100% of the measurement

range

39

Clamp Multimeter METRACLIP 88 English

Measurement range

0.000V to 3.199V DC

Specified measurement range

1 to 100% of the measurement range

Uncertainties

± (1% R + 3 pt)

Resolution

0.001V

Measurement current

0.55 mA

Indication: junction reversed or
open-circuit

Display of "OL" when the measured

voltage >3.199V



10.00 kW

99.99 kW

Specified
range

Uncertainties

until 1000A

± (4.5% R+10 pt)

Resolution

1W

10W

100W

1,000W

4.2.10 Diode test

Note : The "-" sign is disabled for the diode test function.

4.2.11 Active DC power measurements

Measurement
range (2)

0 W to

9999 W

to

100.0 kW to

999.9 kW

1000 kW to

3000 kW (1)

measurement

(3)

1 to 100% of the

measurement range

± (2% R +10 pt)

from 1000A to 2000A

± (2.5% R +10 pt)

from 2000A

± (3.5% R+10 pt)

from 2500A

Note (1) - Display of O.L or ± O.L

- Above 3000kW in single-phase (1000V x 3000A).

- Above ±6000kW, in REL mode.
Note (2) - Any applied voltage greater than 1000V causes the emission of an

int er m ittent alarm beep to report a dangerous overload.
Note (3) - The measurement result may be perturbed by an instability linked to the

c urr ent measurement (approximately 0.1A).

2500A

3000A

DC:

DC:

DC

DC

0 to 100% of the measurement range

to

until 1000A

± (2% R +3 pt )

from 1000A to 2000A

± (2.5% R +3 pt)

from 2000A

to 2500A

DC

DC:

± (3.5% R+3 pt)

to

from 2500A

± (4.5% R+3 pt)

to 3000A

DC

DC:

40

English Clamp Multimeter METRACLIP 88

10.00 kW

99.99 kW

Specified
range

1 to 100% of the

range

Uncertainties

until 1000A

± (2.5% R +10 pt)

Resolution

1W

10W

100W

1000W

Example: for a power measurement made at 10A, the instability of the
measurement will be 0.1A/10A or 1%.

4.2.12 Active AC power measurements

Measurement
range (2) (4)

5 W to

9999 W

to

100.0 kW to

999.9 kW

1000 kW to

2000 kW (1)

measurement

(3) (7)

measurement

± (2% R +10 pt)

from 1000A to

2000A

0 to 100% of the measurement range

until 1000A

± (2% R +3 pt )

from 1000A to 2000A

± (2.5% R +3 pt)

Note (1) - Display of O.L

- Above 2000kW in single-phase (1000V x 2000A).

- The bandwith is 3 kHz in voltage and 1 kHz in current in AC

Notes (2) and (3) of the previous § apply.
Note (4) - Any power measured less than 5W is r egarded as zero and causes the

display of dashes "----"

- If the voltage is less than 0.15V or if the current is less than 0.15A, the
power measured is regarded as zero and causes the display of dashes "----"

Note 5 - The active powers are positive for power consumed and negative for
power generated.

Note 6 - The signs of the active and reactive powers and power factor are defined
by t he four-quadrant rule below:

- The diagram below sums up the signs of the power as a function of the
phas e ang le between U and I:
Quadrant 1 : Active power P sign + (power consumed)
Quadrant 2 : Active power P sign - (power generated)
Quadrant 3 : Active power P sign - (power generated)
Quadrant 4 : Active power P sign + (power consumed)

41

Clamp Multimeter METRACLIP 88 English

10.00 kW

99.99 kW

Specified
range

Uncertainties

until 1000A

± (4.5% R+10 pt)

Resolution

1W

10W

100W

1000W

Note (7) - In balanced three-phases, with deformed signals (THD and harmonics),
uncertainties are guaranted since Ф > 30°. Additionals errors are following ,
depending of THD :
Add +1% for 10% < THD < 20%
Add +3% for 20% < THD < 30%
Add +5% for 30% < THD < 40%

4.2.13 Active AC+DC power measurements

Measurement
range (2) (4)

measurement

(3) (7)

5 W to

9999 W

1 to 100% of the

measurement range

± (2% R +10 pt)

from 1000A to 2000A

± (2.5% R +10 pt)

from 2000 A

2500A

DC:

DC

to

± (3.5% R+10 pt)

from 2500A

3000A

DC:

DC

to

to

100.0 kW to

999.9 kW

0 to 100% of the measurement range

until 1000A

± (2% R +3 pt )

from 1000A to 2000A

± (2.5% R +3 pt)

from 2000A

to 2500A

DC

± (3.5% R+3 pt)

from 2500A

to 3000A

DC

± (4.5% R+3 pt)

1000 kW to

3000 kW (1)

DC:

DC:

Note (1) - Display of O.L

- Above 3000kW in single-phase (1000V x 3000A).

- The bandwith is 3 kHz in voltage and 1 kHz in current in AC

42

English Clamp Multimeter METRACLIP 88

Measurement
range (2) (4)

5 VA to

9999 VA

10.00 kVA to

99.99 kVA

100.0 kVA to

999.9 kVA

1000 kVA to

2000 kVA (1)

Specified
range

1 to 100% of the

range

Uncertainties

until 1000A

± (2.5% R +10 pt)

Resolution

1VA

10VA

100VA

1,000VA

10.00 kVA

99.99 kVA

1000 kVA to

(1)

Specified
range

Uncertainties

until 1000A

± (4.5% R+10 pt)

Resolution

1VA

10VA

100VA

1,000VA

Notes (2), (3), (4), 5, 6 and (7) of the previous § apply.

4.2.14 Measurement of apparent AC power

Note (1) - Display of O.L

- Above 2000 kVA in single-phase (1000 V x 2000 A).

- The bandwith is 3 kHz in voltage and 1 kHz in current in AC
Notes (2), (3) and (4) of the previous § apply.

4.2.15 Measurement of apparent AC+DC power

measurement

(3)

Measurement
range (2) (4)

measurement

(3)

measurement

± (2% R +10 pt)

from 1000A to

2000A

5 VA to

9999 VA

1 to 100% of the

measurement range

± (2% R +10 pt)

from 1000A to 2000A

± (2.5% R +10 pt)
from 2000A DC to

2500A DC:

± (3.5% R+10 pt)

from 2500A DC to

3000A DC:

0 to 100% of the measurement range

until 1000A

± (2% R +3 pt)

from 1000A to 2000A

± (2.5% R +3 pt)

to

100.0 kVA to

999.9 kVA

3000 kVA

0 to 100% of the measurement range

until 1000A

± (2% R +3 pt )

from 1000A to 2000A

± (2.5% R +3 pt)

from 2000A DC to 2500A DC:

± (3.5% R+3 pt)

from 2500A DC to 3000A DC:

± (4.5% R+3 pt)

Note (1) - Display of O.L

- Above 3000 kVA in single-phase (1000 V x 3000 A).

43

Clamp Multimeter METRACLIP 88 English

10.00 kvar
99,99 kvar

Specified
range

Uncertainties

until 1000A

± (2.5% R +10 pt)

until 1000A

± (2.5% R +3 pt)

Resolution

1 var

10 var

100 var

1 kvar

- The bandwith is 3 kHz in voltage and 1 kHz in current in AC
Notes (2), (3) and (4) of the previous § apply.

4.2.16 Measurement of reactive AC power

Measurement
range (2) (4)

5 var to

9999 var

to

100.0 kvar to

999.9 kvar

1000 kvar to

2000 kvar (1)

measurement

(3) (8)

1 to 100% of the

measurement range

± (2% R +10 pt)

from 1000A to 2000A

0 to 100% of the measurement range

± (2% R +3 pt )

from 1000A to 2000A

Note (1) - Display of O.L

- Above 2000 kvar in single-phase (1000 V x 2000 A).

- The bandwith is 3 kHz in voltage and 1 kHz in current in AC

Notes (2), (3) and (4) of the previous § apply.
Note 5 - In single-phase, the sign of the reactive power is determined by the

phas e l ead or lag between the U and I signs, while in balanced three­ phas e, it is determined by the calculation on the samples.

Note 6 - Signs of reactive powers according to the four-quadrant rule (§4.2.12):
Quadrant 1 : Reactive power Q sign +
Quadrant 2 : Reactive power Q sign +
Quadrant 3 : Reactive power Q sign ­ Quadrant 4 : Reactive powerQ sign –

Note (8) - In single phase, with deformed signals (THD and harmonics),
uncertainties are guaranted since Ф > 30°. Additionals errors are following ,
depending of THD :
Add +1% for 10% < THD < 20%
Add +3% for 20% < THD < 30%
Add +5% for 30% < THD < 40%

44

English Clamp Multimeter METRACLIP 88

10.00 kvar

99.99 kvar

100.0 kvar

999.9 kvar

1000 kvar to

(1)

Specified
range

Uncertainties

until 1000A

± (4.5% R+10 pt)

until 1000A

± (4.5% R+3 pt)

Resolution

1 var

10 var

100 var

1 kvar

Measurement range (1)

-1.00 to +1.00

Specified measurement range

0 to 50% of the

measurement range

50 to 100% of the

measurement range

Uncertainties (7)

± (3% R +3 pt )

± (2% R +3 pt )

Resolution

0.01

4.2.17 Measurement of reactive AC+DC power

Measurement
range (2) (4)

5 var to

9999 var

to

to

3000 kvar

measurement

(3) (8)

1 to 100% of the

measurement range

± (2% R +10 pt)

from 1000A to 2000A

± (2.5% RL +10 pt)

from 2000A DC to 2500A DC:

± (3.5% R+10 pt)

from 2500A DC to 3000A DC:

0 to 100% of the measurement range

± (2% R +3 pt )

from 1000A to 2000A

± (2.5% R +3 pt)

from 2000A DC to 2500A DC:

± (3.5% R+3 pt)

from 2500A DC to 3000A DC:

Note (1) - Display of O.L

- Above 3000 kvar in single-phase (1000 V x 3000 A).

- The bandwith is 3 kHz in voltage and 1 kHz in current in AC
Notes (2), (3) , (4), 5, 6 and (8) of the previous § apply.

Specific characteristics in MAX/MI N m ode in power (from 10Hz to 1kHz):

• Uncertainties: add 1% R to the values in the tables above.

• Capture time: approximately 100ms

4.2.18 Calculation of the power factor

Note (1) - If one of the terms in t he calculation of the power factor i s displayed as
"OL" , or forc ed to zero, the display of the pow er fact or is an indet erminate
v alue " ----".

Note (7) of t he previous § apply.

45

Clamp Multimeter METRACLIP 88 English

5.0 Hz to

999.9 Hz

1000 Hz to

9999 Hz

10.00 kHz to

19.99 kHz

1 to 100% of the

range

Uncertainties

± (0.4% R + 1 pt)

Resolution

0.1Hz

1Hz

10Hz

Measurement range (1)

5.0 Hz to 999.9 Hz

Specified measurement range

1 to 100% of the measurement range

Uncertainties

± (0.4% R + 1 pt)

Resolution

0.1Hz

Note 9 - Sign of the power factor according to the four-quadrant rule (§4.2.12):
Quadrant 1 : Power factor PF sign + (inductive system)
Cos Φ sign +
Quadrant 2 : Power factor PF sign - (capacitive system)
Cos Φ sign ­ Quadrant 3 : Power factor PF sign + (inductive system)
Cos Φ sign ­ Quadrant 4 : Power factor PF sign - (capacitive system)
Cos Φ sign +

Specific c ha racteris t ic s in MAX/MIN m ode (from 1 0 Hz to 1kHz):

• Uncertainties: add 1% R to the values in the tables above.

• Capture time: approximately 100ms.

4.2.19 Frequency measurements

4.2.19.1 Characteristics in voltage

Measurement range (1)
Specified measurement

range

4.2.19.2 Characteri sti cs in cu rrent

Note (1) in MAX/MIN mode, the operating range is limited to 1kHz.

- If the level of the signal is too low (<10% of the range, or U<10V or
I<10A) or if the frequency is less than 5Hz, the device cannot determine
the frequency and displays dashes "----".

Specific c ha racteris t ic s in MAX/MIN m ode (from 10Hz t o 1 kHz) :

• Uncertainties: add 1% R to the values of the table above.

• Capture time of the extrema: approximately 100ms.

measurement

46

0 to 100% of the measurement

range

English Clamp Multimeter METRACLIP 88

Measurement range

0.0 – 100%

Specified measurement range

0 to 100% of the measurement range

Uncertainties

± (5% R ±2 pts) in voltage
± (5% R ±5 pts) in current

Resolution

0.1%

Measurement range

0.0 – 1000%

Specified measurement range

0 to 100% of the measurement range

Uncertainties

± (5% R ±2 pts) in voltage
± (5% R ±5 pts) in current

Resolution

0.1%



Frequency range

47Hz to 400Hz

Acceptable voltage range

50V to 1,000V

Duration of acquisition of the reference period

≤500ms

Duration of validity of the reference period
information

approximately 10s at 50Hz
approximately 2s to 400Hz

Duration of acquisition of the measurement period
+ display of the order of the phases

Acceptable phase unbalance

±10

Acceptable amplitude unbalance

20%

Acceptable level of harmonics in voltage

10%

4.2.20 Characteristics in THDr

4.2.21 Characteristics in THDf

Note : - The display is "----" if the input signal is too low (U<8V or I<9A) or if the

frequency is less than 5Hz.

Specific characteristics in MAX/MIN m ode in THD (f r o m 1 0 Hz to 1kHz):

• Uncertainties: add 1% R to the values in the tables above.

• Capture time of the extrema: approximately 100ms

4.2.22 Indication of order of the phases

≤500ms

47

Clamp Multimeter METRACLIP 88 English

4.3 ENVIRONMENTAL CONDITIONS

Environmental conditions in use in storage
Temperature -20 C to + 55 C -40 °C to + 70°C
Relative humidity (RH): ≤90% at 55°C ≤90% up to 70° C

4.4 CHARACTERISTICS OF CONSTRUCTION

Housing: Rigid polycarbonate shell with moulded elastomer covering

Polycarbonate

Jaws:

Screen:

Dimension: H-296 x W-111 x D-41mm
Weight: 640g ( w it h the batteries)

Opening: 60mm
Clamping diameter: 60mm
LCD display unit
Blue backlighting
Dimension: 41 x 48 mm

4.5 POWER SUPPLY

Batteries: 4x1,5V LR6
Mean life: >350 hours (without backlighting)
Duration of operation before

automati c switching off:

After 10 minutes without action on the switch
and/or keys

4.6 COMPLIANCE WITH INTERNATIONAL STANDARDS

Compliant with standards IEC-61010-1, IEC-61010-2-

Electric safety:

30, and IEC-61010-2-32:

1000V CAT-IV.

48

English Clamp Multimeter METRACLIP 88

Quantity of

influence

Range of
influence

Quantity

influenced

Influence

Typical

MAX

Temp

V AC

W DC

1,5%

0,1%R/10°C + 2 pts
0,3%R/10°C + 2 pts

Humidity

V

W

Fr

4%R + 1 pt

Position of the
conductor in the
jaws

(f

Any position on

perimeter of the

A-W

(< 2000A DC or

Adjacent
conductor
carrying a
current of 150 A
DC or RMS

Conductor

perimeter of the

jaws

Conductor
enclosed by the
clamp

Electromagnetic

compatibility:

Mechanical

strength:

Level of protection

of the housing:

Compliant with standard EN-61326-1
Classification: residential environment

Free fall: 2m (in accordance with standard IEC-68-2-32)

Housing: IP54 (per standard IEC-60529)
Jaws: IP40

4.7 VARIATIONS IN THE DOMAIN OF USE

erature -20...+55°C

10%...90%HR

10 Hz...1 kHz

equency

1 kHz... 3 kHz
10 Hz…400 Hz
400 Hz…1 kHz

V DC

A*

Ω

W AC

A

Ω

V
A

0,1%R/10°C

1%R/10°C*

0,15%R/10°C

1%R + 1 pt
8%R + 1 pt

1%R + 1 pt

-

-

-

≤ 1 pt

-

0,2%R

0,25%R

0,1%R/10°C

0,5%R/10°C + 2pts

R/10°C + 2pts*

0,2%R/10°C + 1°C

0,1%R + 1 pt
0,1%R + 2 pts
0,3%R + 2 pts
0,5%R + 2 pts

1%R + 1 pt
9%R + 1 pt
1%R + 1 pt
5%R + 1 pt

≤400 Hz)

the internal

jaws

1400A AC)

(>2000A DC)

2%R

8%L

4%R + 1 pt

touching the

external

0-500 A DC or

RMS

A-W 40 dB 30 dB

V < 1 pt 1 pt

49

Clamp Multimeter METRACLIP 88 English

Application of a
voltage of
clamp

Peak factor

1,4 to 3,5

1400 V peak

0-1000 V DC or

the

RMS

A-W

< 1 pt

1 pt

Note * in Temperature : Influence specified until 1000 A DC

limited

to 3000 A peak

A (AC-AC+DC)
V (AC-AC+DC)

1%R
1%R

3%R + 1 pt
3%R + 1 pt

5 MAINTENANCE

The instrument has no parts that can be replaced by personnel who are not trained
and approved. Any non-approved repair or other work, or replacem ent of a part by
an "equivalent", may severely compromise safety.

5.1 CLEANING

Disconnect eve rything connected to the device and set the sw i tch to OFF.

•

Use a soft cloth m oistened with soapy water. Rinse with a damp cloth and

•

dry quickly using a dry cloth or forced air.
Dry perfectly before putting back into use.

•

5.2 REPLACEMENT OF THE BATTERIES

The symbol indicates that the batteries are spent. When this symbol appears
on the display unit, the batteries must be replaced. The measurements and
specifications are no longer guaranteed.

To replace the batteries, proceed as follows:

1. Disconnec t the measurement leads from the input terminals.

2. Set the switch to OFF.

3. Use a sc rew driv er to uns c rew the sc rew s ecuring the batt ery compartment
cover to the back of the housing and open the cover (see §3.1

4. Replace all of the batteries (see §3.1).

5. Close the cover and screw it to the housing.

50

).

English Clamp Multimeter METRACLIP 88

5.3 METROLOGICAL CHECK

Like all measuring or testing devices, the instrument must be checked regularly.
This instrument should be checked at least once a year. For checks and
calibrations, contact one of our accredited metrology laboratories (information and
contact details available on request ), at our GOSSEN METRAWATT subsidiary or
the branch in your country.

5.4 REPAIR

For all repairs before or after expiry of warranty, please return the device to your
distributor.

6 WARRANTY

Except as otherwise stipulated, our warrant y is valid for three years starting from
the date on which the equipment w as sold. Extract from our General Conditions of
Sale provided on request.
The warranty does not apply in the following cases:

Inappropriate use of the equipment or use with incompatible equipment;

•

Modificatio ns made to the equipment without the explicit permission of the

•

manufacturer’s technical staff;

W ork done on the device by a person not approved by the manufacturer;

•

Adaptation to a particular application not anticipated in the definition of the

•

equipment or not indicated in the user’s manual;

Damage caused by shocks, falls, or floods.

•

7 DELIVERY CONDITION

The METRACL IP 8 8 clamp multimeter is delivered in its packaging box with :

2 banana-banana leads, one red and one black

•

2 test probes, one red and one black

•

1 black crocodile clip

•

4 1.5 V batteries

•

1 carrying bag

•

the multiligual user manual on mini-CD

•

the multiligual getting started guide

•

51

07 - 2013

Code : 692890A02 - Ed. 3

8 ADDRESSES

Repair and Replacement Parts Service
Calibration Center and Rental Instrument Service

If required, please contact:

GMC-I Service GmbH

Service-Center

Thomas-Mann-Strasse 20
90471 Nürnberg • Germany
Phone [phone]
Fax [phone]
E-Mail [e-mail]
www.gmci-service.com

This address is only valid in Germany.
Please contact our representatives or subsidiaries for service in other countries.

Product Support

If required, please contact:

GMC-I Messtechnik GmbH

Product Support Hot line

Phone [phone]
Fax [phone]
E-Mail [e-mail]

Subject to c hange without notice • A pdf version is available on the Internet

GMC-I Messtechnik GmbH Fax [phone]
Südwestpark 15 E-Mail info@gossenmet rawatt. c om
90449 Nürnberg ● Germany www.gossenmetrawatt.com

Phone [phone]