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.
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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
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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
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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
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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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