METREL CE MultiTesterXA MI 3394 User manual

CE MultiTesterXA
MI 3394
Quick Guide
Ver. 1.1.2, Code no. 20 752 431

2
Distributor:
Manufacturer:
Metrel d.d.
Ljubljanska cesta 77
SI-1354 Horjul
E-mail: [email protected]
http://www.metrel.si
Mark on your equipment certifies that it meets European Union requirements for EMC,
LVD, ROHS regulations
© 2015 Metrel
The trade names Metrel, Smartec, Eurotest, Autosequence are trademarks registered or
pending in Europe and other countries.
No part of this publication may be reproduced or utilized in any form or by any means without
permission in writing from METREL.
Note:
This document is not a supplement to the Instruction manual.

MI 3394 CE MultiTesterXA Table of contents
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TABLE OF CONTENTS
1General description ........................................................................................................ 4
1.1Warnings and notes ...................................................................................................... 4
1.1.1Safety warnings ........................................................................................................4
1.1.2Warnings related to safety of measurement functions..............................................4
1.1.2.1HV AC, HV DC, HV AC programmable, HV DC programmable ....................... 4
1.1.2.2Diff. Leakage, Ipe Leakage, Touch Leakage, Power, Leak’s & Power............. 5
1.1.3Markings on the instrument.......................................................................................5
2Instrument description ................................................................................................... 6
2.1Front panel.................................................................................................................... 6
3Instrument operation ...................................................................................................... 8
3.1General meaning of keys .............................................................................................. 8
3.2General meaning of touch gestures:............................................................................. 8
3.3Symbols and messages................................................................................................ 9
4Single tests.................................................................................................................... 12
4.1Single test measurements .......................................................................................... 12
4.1.1Continuity................................................................................................................12
4.1.2HV AC.....................................................................................................................13
4.1.3HV DC.....................................................................................................................15
4.1.4HV AC programmable.............................................................................................17
4.1.5HV DC programmable.............................................................................................19
4.1.6Insulation resistance (Riso, Riso-S)........................................................................21
4.1.7Sub-leakage (Isub, Isub-S) .....................................................................................24
4.1.8Differential Leakage................................................................................................26
4.1.9Ipe Leakage............................................................................................................28
4.1.10Touch Leakage ...................................................................................................29
4.1.11Power..................................................................................................................31
4.1.12Leak's & Power ...................................................................................................32
4.1.13Discharging Time................................................................................................34
5Maintenance .................................................................................................................. 38
5.1Fuses .......................................................................................................................... 38
5.2Warranty & Repairs..................................................................................................... 38

MI 3394 CE MultiTesterXA Instrument set and accessories
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1 General description
1.1 Warnings and notes
Read before use
1.1.1 Safety warnings
In order to reach high level of operator safety while carrying out various measurements using
the CE MultiTesterXA instrument, as well as to keep the test equipment undamaged, it is
necessary to consider the following general warnings:
Read this user manual carefully, otherwise use of the instrument may be
dangerous for the operator, for the instrument or for the equipment under test!
Consider warning markings on the instrument!
If the test equipment is used in manner not specified in this user manual the
protection provided by the equipment may be impaired!
Do not use the instrument and accessories if any damage is noticed!
Consider all generally known precautions in order to avoid risk of electric shock
while dealing with hazardous voltages!
Use only standard or optional test accessories supplied by your distributor!
Only test adapters provided or approved by Metrel should be connected to TC1
(test and communication) connectors.
Use only earthed mains outlets to supply the instrument!
In case a fuse has blown refer to chapter 5.1 Fuses to replace it!
Instrument servicing and calibration is allowed to be carried out only by a
competent authorized person!
1.1.2 Warnings related to safety of measurement functions
1.1.2.1 HV AC, HV DC, HV AC programmable, HV DC programmable
A dangerous voltage up to 5 kVAC or 6 kVDC is applied to the HV instrument outputs
during the test. Therefore special safety consideration must be taken when
performing this test!

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Only a skilled person familiar with hazardous voltages can perform this
measurement!
DO NOT perform this test if any damage or abnormality (test leads, instrument) is
noted!
Never touch exposed probe tip, connections equipment under test or any other
energized part during the measurements. Make sure that NOBODY can contact them
either!
DO NOT touch any part of test probe in front of the barrier (keep your fingers behind
the finger guards on the probe) – possible danger of electric shock!
It is a good practice to use lowest possible trip-out current.
1.1.2.2 Diff. Leakage, Ipe Leakage, Touch Leakage, Power, Leak’s & Power
It is advisable not to run tested devices with load currents above 10 A for more than
15 minutes. Load currents higher than 10 A can result in high temperatures of On/Off
switch and fuse holders!
1.1.3 Markings on the instrument
Read the Instruction manual with special care to safety operation«. The
symbol requires an action!
Dangerous high voltage is present on terminals during the test. Consider
all precautions in order to avoid risk of electric shock.
Mark on your equipment certifies that it meets European Union
requirements for EMC, LVD, and ROHS regulations.
This equipment should be recycled as electronic waste.
.

MI 3394 CE MultiTesterXA Instrument description
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2 Instrument description
2.1 Front panel
Figure 2.1: Front panel
1 Mains supply connector
2 F1, F2 fuses (F 5 A / 250 V)
3 F3, F4 fuses (T 16 A / 250 V)
4 On / Off switch
5 Test connections TC1 for external test adapters
6 Mains test socket
7 P/S (probe) connector
8 Keypad
9 HV output connectors
10 HV output warning lamp
11 Continuity connectors
12 Insulation / Subleakage connectors
13 Discharging time connectors
14 Colour TFT display with touch screen
15 Control outputs
16 Control inputs
17 Multipurpose RS232-1 port

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18 Multipurpose RS232-2 port
19 Ethernet connector (not yet functional in this model)
20 USB connector
21 MicroSD card slot

MI 3394 CE MultiTesterXA Instrument operation
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3 Instrument operation
The CE MultiTesterXA can be manipulated via a keypad or touch screen.
3.1 General meaning of keys
Cursor keys are used to:
- select appropriate option
Enter key is used to:
- confirm selected option
- start and stop measurements
Escape key is used to:
- return to previous menu without changes
- abort measurements
Option key is used to:
- expand column in control panel
- show detailed view of options
HV Test key is used to:
- start and stop HV tests
3.2 General meaning of touch gestures:
Tap (briefly touch surface with fingertip) is used to:
- select appropriate option
- confirm selected option
- start and stop measurements
Swipe (press, move, lift) up/ down is used to:
- scroll content in same level
- navigate between views in same level
long
Long press (touch surface with fingertip for at least 1 s) is used to:
- select additional keys (virtual keyboard)
- enter cross selector from single test screens
Tap Escape icon is used to:
- return to previous menu without changes;
- abort measurements

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3.3 Symbols and messages
Supply voltage warning
Possible causes:
No earth connection.
Instrument is connected to an IT earthing
system. Press YES to continue normally or NO
to continue in a limited mode (measurements are
disabled).
Warning:
The instrument must be earthed properly to work
safely!
Resistance L-N > 30 kΩ
In pre-test a high input resistance was measured.
Possible causes:
Device under test is not connected or switched
on
Input fuse of device under test is blown.
Select YES to proceed with or NO to cancel
measurement.
Resistance L-N < 10 Ω
In pre-test a very low resistance of the device under test
supply input was measured. This can result in a high
current after applying power to the device under test. If
the too high current is only of short duration (caused by
a short inrush current) the test can be performed
otherwise not.
Select YES to proceed with or NO to cancel
measurement
Resistance L-N < 30 Ω
In pre-test a low input resistance of the device under
test was measured. This can result in a high current
after applying power to the device. If the high current is
only of short duration (caused by a short inrush current)
the test can be performed, otherwise not.
Select YES to proceed with or NO to cancel
measurement.
Warning for improper supply voltage condition. If
pressing OK instrument will continue to work in a limited
mode (measurements are disabled).

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In pre-test an external voltage between C1/P1 and
C2/P2 terminals was detected.
The measurement was cancelled. Press OK to continue.
In pre-test a too high external voltage was detected
between P and PE terminals. The measurement was
cancelled. Press OK to continue.
In pre-test a too high external voltage was detected
between ISO/SUB and PE terminals. The measurement
was cancelled. Press OK to continue.
In pre-test a possible high leakage current was
detected. It is likely that a dangerous leakage current
(higher than 3.5 mA) will flow after applying power to the
device under test.
Select YES to proceed with or NO to cancel
measurement.
The measured leakage (Idiff, Ipe, Itouch) current was
higher than 20 mA. Measurement was aborted. Press
OK to continue.
The load current exceeded the highest upper limit of 10
A for the Discharging time test. Press OK to continue.
The instrument is overheated. The measurement can’t
be carried out until the icon disappears. Press OK to
continue.
The device under test should be switched on (to ensure
that the complete circuit is tested).
Test voltage in Insulation resistance measurement is too
low.

MI 3394 CE MultiTesterXA Instrument operation
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Measurement result is scaled to 110 V.
Red dot indicates phase of measurement where higher
leakage was measured. Applicable only if phase
reversal is enabled during the measurement.
Warning!
A high voltage is / will be present on the instrument
output! (Withstanding test voltage, Insulation test
voltage, or mains voltage).
Warning!
A very high and dangerous voltage is / will be present
on the instrument output! (Withstanding test voltage).
Test passed.
Test failed.
Conditions on the input terminals allow starting the
measurement; consider other displayed warnings and
messages.
Conditions on the input terminals do not allow starting
the measurement, consider displayed warnings and
messages.
Proceeds to next measurement step
Stop the measurement.

MI 3394 CE MultiTesterXA Single tests
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4 Single tests
4.1 Single test measurements
4.1.1 Continuity
Figure 4.1: Continuity test menu
Test results / sub-results
R ...............Resistance
Test parameters
Output connections Output [4-wire, P-PE]
Test current I out [0.2 A, 4 A, 10 A, 25 A]
Duration Duration [Off, 2 s ... 180 s]
Test limits
H Limit (R) H limit [Off, 0.01 Ω... 9 Ω]
L Limit (R) L limit [Off, 0.01 Ω... 9 Ω]
Test circuit
Figure 4.2: Measurement of continuity 4-wire

MI 3394 CE MultiTesterXA Single tests
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Figure 4.3: Measurement of Continuity P/S - PE
Continuity measurement procedure
Select the Continuity function.
Set test parameters / limits.
Connect test leads to C1, P1, P2 and C2 terminals on the instrument (4 wire), or connect
test lead to P/S terminal (2 wire measurement P/S – PE).
Connect test leads to device under test.
Start measurement.
Measurement can be stopped manually or by timer.
Save results (optional).
Figure 4.4: Examples of Continuity measurement results
4.1.2 HV AC
IMPORTANT SAFETY NOTE
Refer to chapter 1.1 Warnings and notes for more information regarding safe use of the
instrument.

MI 3394 CE MultiTesterXA Single tests
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Figure 4.5: HV AC test menu
Test results / sub-results
I.................test current
U ...............measured a.c. test voltage
Ir ...............resistive portion of test current
Ic...............capacitive portion of test current
Test parameters
AC test voltage U test [100 V ... 5000 V in steps of 10 V]
Duration t end [Off, 1 s ... 120 s]
Test limits
High limit (I) H limit [0.5 mA ... 100 mA ]
Low limit (I) L limit [Off, 0.5 mA ... 100 mA]
Test circuit
Figure 4.6: HV AC measurement
HV AC measurement procedure
Select the HV AC function.
Set test parameters / limits.
Connect HV test leads to HV(~,+) and HV(~,-) terminals on the instrument.
Connect HV test leads to device under test.

MI 3394 CE MultiTesterXA Single tests
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Start measurement.
Measurement can be stopped manually or by timer.
Save results (optional).
Figure 4.7: Examples of HV AC meaasurement results
Note:
First HV measurement after power on the instrument (if password protection is enabled)
or first HV measurement after enabling or changing password require entering password
for enabling HV test.
4.1.3 HV DC
IMPORTANT SAFETY NOTE
Refer to chapter 1.1 Warnings and notes for more information regarding safe use of the
instrument.
Figure 4.8: HV DC test menu

MI 3394 CE MultiTesterXA Single tests
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Test results / sub-results
U ...............measured test voltage
I.................test current
Test parameters
DC test voltage U test [500 V ... 6000 V in steps of 50 V]
Duration t end [Off, 1 s ... 120 s]
Test limits
High limit (I) H limit [0.05 mA ... 10.0 mA ]
Low limit (I) L limit [Off, 0.05 mA ... 10.0 mA]
Test circuit
Figure 4.9: HV DC measurement
HV DC measurement procedure
Select the HV DC function.
Set test parameters / limits.
Connect HV test leads to HV(~,+) and HV(~,-) terminals on the instrument.
Connect HV test leads to device under test.
Start measurement.
Measurement can be stopped manually or by timer.
Save results (optional).

MI 3394 CE MultiTesterXA Single tests
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Figure 4.10: Examples of HV DC measurement results
Note:
First HV measurement after power on the instrument (if password protection is enabled)
or first HV measurement after enabling or changing password require entering password
for enabling HV test.
4.1.4 HV AC programmable
IMPORTANT SAFETY NOTE
Refer to chapter 1.1 Warnings and notes for more information regarding safe use of the
instrument.
In the HV AC programmable test the time dependency of high voltage can be set according to
diagram on Figure 4.11.
Figure 4.11: Voltage / time diagram of the HV AC programmable test
Figure 4.12: HV AC programmable test menu

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Test results / sub-results
I.................test current
U ...............measured test voltage
Ir ...............resistive portion of test current
Ic...............capacitive portion of test current
Test parameters
Starting AC test voltage U start [100 V ... 5000 V in steps of 10 V]
AC test voltage U test [100 V ... 5000 V in steps of 10 V]
Duration of starting voltage t start [1 s ... 120 s ]
Duration of ramp t ramp [2 s ... 60 s ]
Duration of test voltage t end [Off, 1 s ... 120 s ]
Test limits
High limit (I) H limit [0.5 mA ... 100 mA ]
Low limit (I) L limit [Off, 0.5 mA ... 100 mA]
Test circuit
Figure 4.13: HV AC programmable test

MI 3394 CE MultiTesterXA Single tests
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HV AC programmable test procedure
Select the HV AC programmable function.
Set test parameters / limits.
Connect HV test leads to HV(~,+) and HV(~,-) terminals on the instrument.
Connect HV test leads to device under test.
Start measurement.
Measurement can be stopped manually or by timer.
Save results (optional).
Figure 4.14: Examples of HV AC programmable test results
Note:
First HV measurement after power on the instrument (if password protection is enabled)
or first HV measurement after enabling or changing password require entering password
for enabling HV test.
4.1.5 HV DC programmable
IMPORTANT SAFETY NOTE
Refer to chapter 1.1 Warnings and notes for more information regarding safe use of the
instrument.
In the HV DC programmable test the time dependency of high voltage can be set according to
diagram on Figure 4.11.
Figure 4.15: HV DC programmable test menu
Test results / sub-results
U ...............measured test voltage
I.................test current
Ic...............capacitive portion of test current
Ir ...............resistive portion of test current

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Test parameters
Starting DC test voltage U start [500 V ... 6000 V in steps of 50 V]
DC test voltage U test [500 V ... 6000 V in steps of 50 V]
Duration of starting voltage t start [1 s ... 120 s ]
Duration of ramp t ramp [2 s ... 60 s ]
Duration of test voltage t end [Off, 1 s ... 120 s ]
Test limits
High limit (I) H limit [0.05 mA ... 10.0 mA ]
Low limit (I) L limit [Off, 0.05 mA ... 10.0 mA]
Test circuit
Figure 4.16: HV DC programmable test
HV DC programmable test procedure
Select the HV DC programmable function.
Set test parameters / limits.
Connect HV test leads to HV(~,+) and HV(~,-) terminals on the instrument.
Connect HV test leads to device under test.
Start measurement.
Measurement can be stopped manually or by timer.
Save results (optional).
Figure 4.17: Examples of HV DC programmable test results