METREL Eurotest 61557 MI 2086 User manual

Type
User manual

This manual is also suitable for

Eurotest 61557
MI 2086
User Manual
Version 4.2, Code no. 20 750 719
2
Distributor:
Manufacturer:
METREL d.d.
Ljubljanska cesta 77
1354 Horjul
Slovenia
web site:
http://www.metrel.si
e-mail:
© 2004..2008 METREL
Mark on your equipment certifies that this equipment meets the requirements of the EU
(European Union) concerning safety and interference causing equipment regulations.
No part of this publication may be reproduced or utilized in any form or by any means
without permission in writing from METREL.
MI 2086 Eurotest Table of contents
3
1. Introduction.............................................................................................................5
1.1. General description............................................................................................5
1.2. Warnings............................................................................................................5
1.3. List of parameters measurable by the Eurotest 61557.......................................6
1.4. Standards applied..............................................................................................7
2. Instrument description...........................................................................................8
2.1. Front panel.........................................................................................................8
2.2 Connector panel................................................................................................10
2.3. Bottom side......................................................................................................11
2.4. Standard accessories.......................................................................................12
2.5. Optional accessories........................................................................................12
2.6. Ways of carrying the instrument.......................................................................12
2.7. Accessories required for specific measurement...............................................13
3. Measurement instructions...................................................................................14
3.1. Insulation resistance ........................................................................................14
3.2. Varistor Over-voltage Protection Devices ........................................................17
3.3. Continuity of Protective Conductors.................................................................20
3.4. Continuity.........................................................................................................24
3.5. Earth Resistance (internal generator) ..............................................................27
3.6. Specific Earth Resistance ................................................................................34
3.7. PE terminal test................................................................................................37
3.8. RCD - Contact Voltage and Earth / Fault Loop Resistance..............................39
3.9. RCD – Trip-Out Time .......................................................................................43
3.10. RCD – Trip-Out Current .................................................................................46
3.11. RCD – Automatic Test ...................................................................................48
3.12 Fault Loop Impedance and Prospective Short-circuit Current.........................52
3.13. Contact Voltage at Prospective Short-circuit Current.....................................55
3.14. Line Impedance and Prospective Short-circuit Current..................................57
3.15. N-PE Loop Resistance and Prospective Short-circuit Current .......................59
3.16. Phase rotation................................................................................................61
3.17. Current...........................................................................................................63
3.18. Illumination.....................................................................................................66
3.19. Tracing of electric installation.........................................................................68
3.20. Power.............................................................................................................71
3.21. Energy............................................................................................................73
3.22. Harmonics......................................................................................................75
4. Other operations...................................................................................................78
4.1. Set-up functions...............................................................................................78
4.2. Creating Installation structure on PC................................................................79
4.3. Storing test results ...........................................................................................81
4.4. Recalling stored test results.............................................................................83
4.5. Erasing stored test results................................................................................84
4.6. Reset of the instrument....................................................................................86
MI 2086 Eurotest Table of contents
4
5. Maintenance..........................................................................................................87
5.1. Batteries...........................................................................................................87
5.2. Fuses...............................................................................................................88
5.3. Cleaning...........................................................................................................89
5.4. Periodic calibration...........................................................................................89
5.5. Service.............................................................................................................89
6. Technical specification........................................................................................90
6.1. Functions..........................................................................................................90
6.2. General characteristics ....................................................................................95
MI 2086 Eurotest Introduction
5
1. Introduction
Congratulations on your purchase of the Eurotest 61557 test instrument and it's
accessories, produced by METREL d.d. We are glad, to be able to offer high
professional test equipment, for carrying out absolute inspection of electric
installations in buildings as well as Earth Resistances. The equipment was designed
and produced on basis of rich experiences, acquired through more-years long period
of dealing with electric installation test equipment.
1.1. General description
The Eurotest 61557 is high professional, multifunctional, portable test instrument,
intended for carrying out all measurements, according to European standard
EN 61557, as well as various other tests and measurements.
The instrument is equipped with all accessories, necessary for comfortable carrying
out the tests. It is kept in a soft carrying bag, together with all the enclosed
accessories.
Electronic part of the Eurotest 61557 is produced in SMD technology, which demands
practically no service interventions. Wide matrix display with backlight offers easy to
read main results as well as wide range of subresults, parameters and messages.
Operation is simple and clear; operator does not need any special training (except to
read this Instruction Manual) to operate the instrument.
In order, the operator to be familiar enough with measurements in general, it is
advisable to read the enclosed handbook Measurements on electric installations in
theory and practice.
Built in a unique system for storing test results is important feature of the Eurotest
61557. Professional PC SW enables simple transfer of test results and other
parameters in both directions between the test instrument and PC, as well as
automatic forming of final protocols. That way, complete measurement procedure can
be reasonably quick and thus, the operator competitive to other operators, who need
to create the protocols manually.
1.2. Warnings
In order to reach high operator’s safety, while carrying out various measurements and
tests using the Eurotest 61557, as well as to keep the test equipment undamaged, it is
necessary to consider the following general warnings:
If the test equipment is used in manner not specified in this
InstructionManual, the protection provided by the equipment may be
impaired!
MI 2086 Eurotest Introduction
6
Do not use the instrument and accessories, if any damage is noticed!
In case of blown any fuse, follow the instructions in this Instruction
Manual, to replace it!
Service intervention or calibration procedure is allowed to be carried out
only by a competent, authorised person!
Consider all generally known precautions, in order to avoid risk of electric
shock, while dealing with electric installations!
Use only standard or optional test cables, supplied by your distributor!
1.3. List of parameters measurable by the Eurotest 61557
Parameter Function
switch position
Description
Earth Resistance RE
(classic four-lead method)
R,ρ
EARTH
- Four test terminals
- Two test rods
Earth Resistance RE
(classic four-lead method + one
test clamp)
R,ρ EARTH
- Four test terminals
- Two test rods
- One test clamp
Earth Resistance RE
(two test clamps)
R,ρ EARTH
- Two test clamps
Earth Resistivity ρ
R,ρ EARTH
- Four test terminals
- Four test rods
Continuity R of protective
conductors
R ±200 mA
CONTINUITY
- Test current > 200 mAd.c.
- Single measurement
- Auto polarity reverse
Continuity Rx
R ±200 mA
CONTINUITY
- Test current < 7 mA
- Continuous measurement
Insulation Resistance Ri
RISO
- Test voltages:
50,100,250,500,1000 V
Illumination
SENSOR
Varistor Breakdown
Voltage Ub
TEST
- Test voltage 0 ÷ 1000 V
- Threshold current 1 mA
Leakage Current IL
CURRENT
- Test clamp
Load Current I
CURRENT
- Test clamp
Voltage and Current
Harmonics up to 21-th
HARMONICS
- One phase system
- Test clamp (current har.)
- Test tips (voltage har.)
Power P, Q, PA, cosϕ
POWER
ENERGY
- One-phase system
- Current clamp
Energy W
POWER
ENERGY
- One-phase system
- Current clamp
Installation tracing
phase rotation
/ LOCATOR
- In combination with hand-held
indicator
- Line voltage loading or
imposing of test signal
MI 2086 Eurotest Introduction
7
Phase rotation
phase rotation
/ LOCATOR
RCD - Contact Voltage Uc
RCD
- With or without test rod
RCD - Trip out Time t
RCD
RCD - Tripping Current
RCD
RCD - Earth Resistance RE
(external source)
RCD
- Test rod
- No trip out RCD
RCD - Fault Loop Res. RL
RCD
- No trip out RCD
Line Impedance ZL-N, ZL-L
ZLINE
- Between L and N or L and L
Line Prospective
Short-circuit Current Ipsc
ZLINE
- Between L and N or L and L
Fault Loop Impedance ZL-PE
ZLOOP
- Between L and PE
Fault Loop Prospective
Short-circuit Current Ipsc
ZLOOP
- Between L and PE
Contact Voltage at
Prospective Short-circuit
Current Uc/Ipsc
ZLOOP
- Test probe
- With aux. test probe
N-PE Loop Resistance RN-PE
RLOOP N-PE
- No trip out RCD
- Internal source
Fault Loop Prospective
Short-circuit Current Ipsc
(without tripping out RCD)
RLOOP N-PE
- Between L and PE
- No trip out RCD
1.4. Standards applied
The Eurotest 61557 is designed according to European safety standard
EN 61010 - 1
EMC (noise and immunity) according to European standards
EN 50081 – 1
EN 50082 – 1
Measurements according to European standard EN 61557:
Insulation Resistance...................................................................... Part 2
Loop Impedance ............................................................................. Part 3
Resistance of earth connection and equipotential bonding............. Part 4
Earth Resistance............................................................................. Part 5
Residual Current Devices (RCD) in TT and TN systems................. Part 6
Phase Sequence............................................................................. Part 7
Illumination measurement accroding to standard DIN 5032 ...........……..Part 7
MI 2086 Eurotest Instrument description
8
2. Instrument description
2.1. Front panel
Fig. 1. Front panel
MI 2086 Eurotest Instrument description
9
Legend:
1 ON/OFF key, to switch ON or OFF the instrument. Auto OFF will occur
automatically 10 minutes after last strike to any key or function switch rotation.
2 HELP key, to display help menu (connection of test leads and other data).
3 Light key, to turn ON or OFF display backlight. Auto OFF will occur
automatically 20 seconds after last strike to any key or function switch rotation.
4 RCL key, to recall stored results.
5 SAVE key, to store test results.
6 PE touching electrode, to test PE terminal (presence of phase voltage by
mistake).
7 START key, to start any measurement.
8 SETUP key to:
Set display contrast.
Set Time and Date.
Set communication parameters.
Erase all memory locations.
9 ESC key, to escape any started procedure (storing/recalling test results, erasing
memory locations etc.).
10 Matrix LCD with backlight.
11 Function switch, to select appropriate parameter to be tested. Even two or
more parameters can be tested at the same position.
12 Belt slot, to fix carrying belt.
13 Function keys, to set/select various parameters in each function. Function of a
certain key in each function is marked on display.
MI 2086 Eurotest Instrument description
10
2.2 Connector panel
Fig. 2. Connector panel
Legend:
1 Main test connector
2 Protective connector cover (protects simultaneous connection of test and
RS232 cable)
3 Clamp/Probe (C2/P) test terminal
4 Clamp (C1) test terminal
5 RS 232 connector (to connect Eurotest 61557 to PC)
MI 2086 Eurotest Instrument description
11
2.3. Bottom side
Fig. 3. Bottom side
Legend:
1 Nylon strip (it serves the operator to carry the instrument hung on his neck).
2 Auxiliary nylon strip (it serves the operator to fix the instrument along his body).
3 Plastic cover (it fixes nylon strip to the instrument). There is a screw under the
cover, which is to be unscrewed, when opening the instrument for service or
calibration purpose.
4 Screw (unscrew it, to remove carrying strip or to open the instrument).
5 Label with measurement ranges.
6 Battery/fuse compartment cover.
7 Screw (unscrew it to replace batteries or blown fuse.
8 Rubber foot.
MI 2086 Eurotest Instrument description
12
2.4. Standard accessories
See attached sheet, to compare received set of accessories with listed one.
2.5. Optional accessories
See attached sheet, to check the list of possible optional accessories, which may be
supplied upon request.
2.6. Ways of carrying the instrument
The instrument is hung
around operator's neck
only - quick placing and
displacing.
The instrument is hung
around operator's neck and
fixed to his body with back
belt - stable position.
The instrument can be used even placed
in soft carrying bag - test cable connected
to the instrument throught the side aperture.
The
instrumen
t
is fixed to
operator's
body with
back bel
t
only - it can
be simpl
y
moved from
side to fron
t
p
osition fo
r
measuremen
t
p
urpose an
d
back again.
MI 2086 Eurotest Instrument description
13
2.7. Accessories required for specific measurement
The table below presents accessories (standard or optional) required for specific
measurement. The accessories marked as optional may also be standard ones in
some set configurations; Please see attached list of standard accessories for your set
configuration or contact your dealer for further information.
FUNCTION REQUIRED ACCESSORIES
Insulation Resistance
- Universal Test Cable or
Tip Commander (Option – Order No. A 1002)
Continuity of Protective Conductor
- Universal Test Cable or
Tip Commander (Option – Order No. A 1002)
Continuity
- Universal Test Cable or
Tip Commander (Option – Order No. A 1002)
Earth Resistance (Four-terminal
method)
- Earth Test Set – 20 m (Option – Order No. S 2001) or
Earth Test Set – 50 m (Option – Order No. S 2002)
Earth Resistance (Four-terminal
method + clamp)
- Earth Test Set – 20 m (Option – Order No. S 2001) or
Earth Test Set – 50 m (Option – Order No. S 2002)
- Low-range Current Clamp (Option – Order No. A 1018)
Earth Resistance (Two-clamp
method)
- Universal Test Cable
- Low-range Current Clamp (Option – Order No. A 1018)
- Standard-range Current Clamp (Option – Order No. A 1019)
Specific Earth Resistance
- Earth Test Set – 20 m (Option – Order No. S 2001) or
Earth Test Set – 50 m (Option – Order No. S 2002)
Fault Loop Impedance, Ipsc
- Universal Test Cable or
Plug Commander (Option – Order No. A 1001)
Line Impedance, Ipsc
- Universal Test Cable or
Plug Commander (Option – Order No. A 1001)
Contact Voltage at Ipsc (SEV 3569) - Universal Test Cable
- Probe Test Lead 4m (Option – Order No. A 1012)
RCD – Contact Voltage at IΔN
RCD – Trip-out Time
RCD – Trip-out Current
RCD – Fault Loop Resistance
RCD – Earth Resistance
RCD – Automatic Test
- Universal Test Cable or
Plug Commander (Option – Order No. A 1001)
Phase Rotation
- Universal Test Cable or
Three-phase Cable (Option – Order No. A 1110) or
Three-phase Adapter (Option – Order No. A 1111)
Fuse, Fault, Conductor Tracing
- Universal Test Cable
- Fuse / Fault / Conductor Locator (Option – Order No. A 1005)
Power, Cosϕ, Energy
Harmonics
True RMS Current
- Universal Test Cable
- Low-range Current Clamp (Option – Order No. A 1018) or
Standard-range Current Clamp (Option – Order No. A 1019)
Varistor Overvoltage Device –
Breakdown Voltage
- Universal Test Cable
Illumination
- LUXmeter probe type B (Option – Order No. A 1102)
- LUXmeter probe type C (Option – Order No. A 1119)
MI 2086 Eurotest Measurement instructions
14
3. Measurement instructions
3.1. Insulation resistance
There are different objects, where insulation resistance is to be measured, in order to
assure safety against electric shock. Let’s list a few examples:
Insulation resistance between installation conductors (all combinations).
Insulation resistance of non-conductive rooms (walls and floors).
Insulation resistance of ground cables.
Resistance of semiconductive (antistatic) floors.
For additional general information concerning Insulation resistance measurement,
refer to enclosed handbook Measurements on electric installations in practice and
theory.
Warnings!
Make sure, tested object to be deenergised (mains voltage disconnected) before
starting the measurement!
When measuring Insulation Resistance between conductors, all loads must be
disconnected and all switches closed!
Do not touch tested object while testing it, risk of electric shock!
Do not connect test terminals to external voltage higher than 600 V a.c. or d.c.,
in order not to damage the test instrument!
In case of capacitive test object (capacitive compensation of reactive power,
long tested cable etc.), automatic discharge of the object may not be done
immediately after finishing the measurement. Falling voltage will be displayed in
that case – do not disconnect test leads until the voltage drops below 50 V or
discharge the tested object manually!
How to carry out the measurement?
Step 1
Connect test cable (Universal test cable or Tip commander) to Eurotest 61557.
Set function switch to RISO position, the following menu will be displayed:
Um
18 : 35 : 27
V
Fig. 4. Insulation resistance initial menu
50 V.............Latest set nominal test
voltage.
1 MΩ............Latest set low limit
insulation resistance
value.
Um...............Actual test voltage.
18 : 35 : 27...Real time clock.
MI 2086 Eurotest Measurement instructions
15
Step 2
Select Test voltage by using the Uiso (F2) key. The voltage can be set to 50,
100, 250, 500 or 1000 V and it is currently displayed on top display line.
Step 3
Set Low limit insulation resistance value. Later will test results be compared
with the set limit value and, if lower, they will be equipped with “! mark and
Result under limit message.
How to set the Low limit value?
Press the Llim (F3) key, to enter “Limit value adjustment menu”; see the figure
below:
Fig. 5. Limit value adjustment menu and table of settable limit values
Value between 0,00 MΩ and 200 MΩ, according to above table, may be set by
using the (F2) and (F3) keys. If test result is not to be compared with set limit
value at all, then press the Off (F4) key. Set limit value (displayed on top display
line) will be substituted with MΩ mark. The Off key will alter to On, enabling
the operator to turn the limit value ON again and vice versa.
Press the Back (F1) key, after setting limit value, to return to “Insulation
Resistance initial menu” (see the figure 4.).
Step 4
Connect test cable to tested object, according to the figure below (press the
HELP key for basic connection information).
Range (MΩ) Step (MΩ)
0,01 – 0,25 0,01
0,25 – 1 0,05
1 – 10 1
10 – 200 10
MI 2086 Eurotest Measurement instructions
16
Fig. 6. Connection of Universal Test Cable and optional Tip Commander
(Order No. A 1002)
Step 5
Press the START key and keep it pressed, until result is stabilised, then release
the key. Test result is displayed; see an example of the result on figure below.
Um V
6.07
535
Fig. 7. Example of Insulation resistance test result
Store displayed result for documentation purpose; see instructions how to store
it in chapter 4.3. Storing test results.
Notes!
In case of present voltage higher than 30 V a.c./d.c. between test terminals, the
insulation resistance measurement will not be carried out after pressing START
key, but the voltage will be displayed, equipped with !” mark and
Input voltage > 30 V message! Beep warning sound will be affected too.
Tested object is discharged automatically after finishing the measurement,
actual voltage is displayed during discharging, until the voltage drops below 30
V!
If test result is out of measurement range (open test leads or good isolation),
>1000 MΩ message will be displayed (test voltage is set to 250,500 or 1000 V)
or >200 MΩ message (test voltage is set to 50 or 100 V)!
Positive pole of test voltage is attached to L/L1 test terminal (Universal test
cable) or to commander test tip (Tip commander)!
L1
L2
L3
N
PE
switched off
mains voltage
closed
switches
disconnec-
ted loads
Option
A 1002
N/L2
L
/
L
1
PE/L3
MI 2086 Eurotest Measurement instructions
17
3.2. Varistor Over-voltage Protection Devices
For general information concerning the measurement, refer to enclosed handbook
Measurements on electric installations in practice and theory.
How to carry out the Breakdown voltage test?
Step 1
Connect Universal test cable to Eurotest 61557.
Note!
Set function switch to Riso position and press the FUNC (F1), the following menu will
be displayed.
Uac V
18 : 35 : 27
V
It 1.00 mA
Fig. 8. Varistor test initial menu
Meaning of the Uac voltage:
Protection devices intended for a.c. network are usually dimensioned approx. 20% of
nominal mains voltage above peak value of the nominal mains voltage.
Example:
Nominal mains voltage Un = 230V
Upeak = 230V1,41 = 324V
Ubreakdown = (Upeak + 0,2Un) Un1,6 = 368V
Uac voltage may be directly compared with the voltage declared on tested protection
device.
Step 2
Set Low limit Breakdown voltage. Later will test results be compared with the
set limit value and, if lower, they will be equipped with !” mark and Result out
of limits message.
Uac = Ubreakdown / 1,6
It......... Varistor's treshold current.
MI 2086 Eurotest Measurement instructions
18
How to set the Low limit value?
Press the Llim (F2) key, to enter Limit value adjustment mode, the following
menu will be displayed:
Fig. 9. Limit adjustment menu
Value between 0 and 1000 V in steps of 5 V may be selected by using the (F2)
and (F3) keys. If test result is not to be compared with set limit value at all,
then press the Off (F4) key. Set limit value (displayed on top display line) will be
substituted with V mark. The Off key will alter to On, enabling the operator to
turn the limit value ON again and vice versa.
Press the Back (F1) key after setting the limit value, to return to Varistor test
initial menu.
Step 3
Set High limit Breakdown voltage. Later will test results be compared with the
set limit value and, if higher, they will be equipped with !” mark and Result out
of limits message.
How to set the High limit value?
Press the Hlim (F3) key, to enter Limit value adjustment mode.
Value between 0 and 1000 V in steps of 5 V may be selected by using the (F2)
and (F3) keys. If test result is not to be compared with set limit value at all,
then press the Off (F4) key. Set limit value (displayed on top display line) will be
substituted with V mark. The Off key will alter to On, enabling the operator to
turn the limit value ON again and vice versa.
Press the Back (F1) key after setting the limit value, to return to Varistor test
initial menu.
Step 4
Connect test leads to tested varistor over-voltage protection device, according
to the figure below (press the HELP key for basic connection information).
MI 2086 Eurotest Measurement instructions
19
Fig. 10. Connection of tested device
Step 5
Press the START key and release it. Test voltage starts to rise (500 V/s) and as
soon as varistor’s forward current reaches the value of 1 mA (breakdown voltage
is defined at that current), test voltage will be displayed. Generator will stop to
generate test voltage. See an example of test result on the figure below.
V
Uac 258V
It 1.00 mA
413
Fig. 11. Breakdown voltage displayed
Store displayed result for documentation purpose; see instructions how to store
it in chapter 4.3. Storing test results.
Notes!
In order test result not to be influenced by connected loads, tested Over-voltage
Device must be removed from installation, before testing it.
If the Over-voltage Protection Device to be tested cannot be removed from installation
(permanent connection), make sure to disconnect all other elements connected to
installation, which may influence the test result.
MI 2086 Eurotest Measurement instructions
20
3.3. Continuity of Protective Conductors
Continuity of protective conductors is to be measured, before mains voltage is
connected to tested installation (new or adapted installations). Max. allowed
resistance value depends on power of connected loads, used installation system (TN,
TT) etc.
For additional general information concerning Continuity measurement, refer to
enclosed handbook Measurements on electric installations in practice and
theory.
Warning!
Make sure, tested object to be deenergised (mains voltage disconnected)
before starting the measurement!
How to carry out the measurement?
Step 1
Connect test cable (Universal test cable or Tip commander) to Eurotest 61557.
Set function switch to R±200mA / CONTINUITY position, “Continuity of protective
conductors” or “Continuity” menu will be displayed.
Select Continuity of protective conductors function by using the FUNC (F1) key.
The function is selected, when R ± 200 mA is displayed; see the figure below.
Fig. 12. Continuity initial menu
Step 2
Set buzzer mode by using the buzzer (F3) key. The buzzer can be set to
active mode (buzzer sign present on top display line) or passive mode (buzzer sign
not present on top display line). In case of active buzzer, each displayed result, lower
than set High limit value (good result), will be accompanied with approx. 2s long
sound signal.
10.0
Ω
....Latest set high resistance
value.
R+..........Partial result (blue test lead
connected to positive terminal
of test voltage).
R- ..........Partial result (blue test lead
connected to negative
terminal of test voltage).
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METREL Eurotest 61557 MI 2086 User manual

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