Gossen Metrawatt METRISO XTRA Operating Instructions
Operating Instructions
METRISO XTRA
High-Precision Insulation, Low Resistance and Voltage Measurement Instrument
3-349-818-03
2/12.17
LCD Panel
Red LED: limit value exceeded
Red LED:
– Interference voltage with device off
Setup Menu
Function
Selector Switch
Slot for
Carrying Strap
Slot for
Carrying Strap
Green LED: limit value adhered to
– High test voltage at the measuring terminals
MEM: Key for memory
functions
ESC: Exit submenu /
activate instrument
standby state
Control panel
Fixed Function Keys
LEDs → section 4.3
CONTIN: Continuous
measurement of
Rins and R (kΩ)
HELP: Access context
sensitive help
START: Start measurement
Softkeys
• Parameter selection
• Limit value specification
• Entry functions
• Memory functions
METRISO XTRA
during Riso/Rins
2 GMC-I Messtechnik GmbH
Battery Holder
Battery Compartment Lid
Battery Holder
Contacts
Battery
Contact
Spring
User Interface
Batteries, Fuses
Measuring
!
RS 232
+
COM
+
COM
SHIELD
SHIELD
Option KS-C (Z541F)
Option Z550A*
Charger Socket, Interfaces
These connections are located under a protective rubber flap.
a b
Replacement
Fuse
Socket for Z502R charger
Caution!
Make sure that no batteries are inserted
before connecting the charger.
The test instrument must remain off
during the charging process.
Fuse
Inserting the Battery Holder (side view)
USB slave for
PC connection
Port for connecting Barcode/RFID reader
GUARD
* Regarding Z550A:
Test Probe with measurement key
remote control and LED for
illuminating the measuring point:
Do not use when measuring PI and
DAR.
Compartment Lid
Battery
Compartment
Connections
Test Resistor 10 MΩ
GMC-I Messtechnik GmbH 3
Overview of Device Settings and Measuring Functions
Battery level
Bar graph display
Measurement
Upper range limit
Measuring
Parameter
Display panel
Save
Battery full
Battery OK
Battery weak
Battery (nearly)
Battery Level Indicator
BAT
BAT
BAT
BAT
depleted U < 8.5 V
Measuring Status
Measurement in progress: Bars moves from left
Measurement on pause: Bars are static.
to right.
||||||||||
||||||||||
Polarity reversal‚
L-PE / N-PE for
documentation
setting
value
quantities
indicator
in progress
Memory Occupancy Display
MEM
Memory half full
MEM
Memory full > transfer data to PC!
These operating instructions describe a tester with
software version SW-VERSION (SW1) 01.02.00.
!
Relative to Rotary Switch Setting
Switch
setting,
see as of
RISO
RINS
page 15
kΩ
page 20
RLO
page 21
V
page 14
SETUP
Pictograph
Device settings,
measuring functions
RINS Insulation resistance
U Voltage at the test probes
U
fix Fixed test voltage,
N
Uvariable Variable test voltage, limit value:
Uramp Variable test voltage,
PI Polarization index
DAR Absorption index
R Resistance measurement
RLO Low-resistance with polarity reversal
RLO+, RLO–
R
OFFSET Offset resistance
U Voltage measurement
Tests: LCD pixel display
Battery test Ubat
limit values per VDE 0100
1 MOhm (for go/no-go display
while saving the measured value)
ramp: triggering/breakdown voltage
Low-resistance, single-pole
LCD pixel display
All pixels off
Green limit LED All pixels on
Red limit LED Acoustic signal
Date/time
CULT Language (D, GB)
Brightness
page 8
SET on: On-time for
Contrast Default settings
Device type
Serial number
Software version
Hardware version
Calibration date
Adjustment date
LCD and tester
Scope of delivery:
1 Insulation and resistance measuring instrument
1 DAkkS calibration certificate
1 Set batteries (8 pieces in battery holder)
1Carrying strap
1 Alligator clip
1 KS17-4 cable set
1USB cable
1 Condensed operating instructions
1 Supplement Safety Information
– Detailed operating instructions for download from our website
at www.gossenmetrawatt.com
4 GMC-I Messtechnik GmbH
Table of Contents Page Page
1 Applications ......................................................................6
1.1 Optional Z550A Remote Control .................................................. 6
1.2 Overview of Measuring Instrument Performance
Features ...................................................................................... 6
2 Safety Features and Precautions .....................................7
3 Initial Start-Up .................................................................. 7
3.1 Battery test ................................................................................. 7
3.2 Installing or Replacing Batteries ................................................. 7
3.3 Charging the Batteries in the Tester ........................................... 7
3.4 Device Settings – SETUP ........................................................... 8
4 General Operation ...........................................................11
4.1 Connecting the Instrument ....................................................... 11
4.2 Switching On, Monitoring and Switching Off ............................ 11
4.3 Optical Indicators ..................................................................... 11
4.4 Measurement Value Display and Memory ................................ 12
4.5 Help Function ............................................................................ 12
4.6 Setting Measuring Parameters
using Insulation Resistance Measurement as an Example ....... 12
4.7 Specifying Nominal Voltage for Uvar and Uramp ...................... 13
5 Measuring Direct Alternating Voltage ............................. 14
6 Measuring Insulation Resistance ...................................15
6.1 Measuring with Constant Test Voltage
and Nominal Value Selection via Rotary Switch Position ......... 16
6.2 Measurement with Constant Test Voltage
and Variably Adjustable Nominal Value .................................... 16
6.3 Measurement with Rising Test Voltage (ramp function)
and Variably Adjustable Final Value .......................................... 17
6.4 Insulation Resistance Measurement – Special Conditions ....... 17
6.4.1 Measurements with the Guard Cable ............................................ 17
6.5 Discharging the Device Under Test ........................................... 18
6.6 Evaluation of Measured Values ................................................. 18
6.7 Polarization Index Measurement .............................................. 18
6.7.1 Absorption Index (DAR) – DC Charging Test .................................. 19
11 Characteristic Values ...................................................... 29
12 Maintenance ...................................................................31
12.1 Firmware Revision and Calibration Information ....................... 31
12.2 Rechargeable Battery Operation and Charging ........................ 31
12.2.1 Charging Procedure with the Z502R Charger (accessory) .............. 31
12.3 Fuses ........................................................................................ 31
12.3.1 Melting Fuse ............................................................................... 31
12.3.2 Electronic Fuse ........................................................................... 31
12.4 Housing ..................................................................................... 32
12.5 Return and Environmentally Sound Disposal ............................ 32
13 Appendix .........................................................................32
13.1 Sample Connection Layouts for Insulation Resistance Measure-
ment ......................................................................................... 32
13.2 Error Messages ........................................................................ 34
13.3 Attaching the Test Probe Holder to the Carrying Strap ............. 36
13.4 Technical Data for Measurement Cables
(scope of delivery: KS17-4 safety cable set) ............................ 36
13.5 Optional Accessories (not included) ......................................... 37
14 Repair and Replacement Parts Service
Calibration Center and Rental Instrument
Service ............................................................................38
15 Recalibration ..................................................................38
16 Product Support .............................................................. 38
7 Test Resistor for Insulation Measurement for Checking the
Insulation Measuring Instrument .................................... 19
8 Measuring Resistance – kOhm Function ........................ 20
9 Measuring Low-Value Resistance of up to 10 Ohm
(protective conductor and equipotential bonding conductor) ... 21
10 Database ........................................................................24
10.1 Creating Distributor Structures, General ................................... 24
10.2 Transferring Distributor Structures ........................................... 24
10.3 Creating a Distributor Structure in the Test Instrument ........... 24
10.3.1 Creating Structures (example for electrical circuit) ......................... 25
10.3.2 Searching for Structural Elements ................................................26
10.4 Saving Data and Generating Reports ........................................ 27
10.4.1 Use of Barcode Scanners and RFID Readers ................................. 28
GMC-I Messtechnik GmbH 5
1 Applications
This instrument fulfills all requirements of applicable European and
national EC directives. We confirm this with the CE mark. The relevant declaration of conformity can be obtained from GMC-I
Messtechnik GmbH.
The METRISO XTRA insulation and resistance measuring instrument allows for quick and efficient testing of protective measures
in accordance with DIN VDE 0100, ÖVE-EN 1 (Austria), SEV 1000
(Switzerland), and regulations specific to other countries as well.
The device is equipped with a microprocessor and complies with
IEC/EN 61557 / VDE 0413 regulations:
Part 1: General requirements
Part 2: Insulation resistance
Part 4: Resistance of earth connection, protective conductors
and equipotential bonding
Part 10: Electrical safety in low-voltage systems up to 1000 V
AC and 1500 V DC – Equipment for testing, measuring
or monitoring of protective measures
As well as requirements per VDE 0701-0702:
Repair, modification and testing of electrical devices
The test instrument is especially well suited for:
•Systems setup
• Initial start-up
• Periodic testing
• Troubleshooting in electrical systems
The following measurements and tests can be performed with the
insulation measuring instrument:
• Insulation resistance
• Low-resistance
• Voltage
The following can also be tested by using a shielded measurement cable:
• Floor covering electrostatic discharge capability
1.2 Overview of Measuring Instrument Performance Features
METRISO XTRA
Article No. M550S
Measurement
U = 50, 100, 250, 500, 1000 V ✓
R
INS
Uvar = 50 ... 1000 V ✓
R
INS
Uramp (U) = 100 ... 1000 V ✓
R
INS
PI ✓
DAR ✓
R 10 ... 10 kΩ ✓
R
LO
U 0 ... 1000 V ✓
Display Functions
Backlit display ✓
Limit value LED (green/red) for:
limit values per VDE 0100
in addition to acoustic signal
URamp limit value LED for:
indicating ramp characteristics
LED for dangerous contact voltage
(when switched off)
Battery level display ✓
Special Functions
Discharge capacitive devices under test ✓
Safety shutdown (UBatt < 8 V) ✓
Data storage at the instrument ✓
ETC software for data acquisition, data management and reporting ✓
Features
Measuring categories: CAT II 1000 V / CAT II I 600 V / CAT IV 300 V ✓
Test resistance: 10 MΩ ✓
Connections: charging socket, USB port (slave), RS 232 port ✓
DAkkS calibration certificate ✓
0.01 ... 10 Ω ✓
R
INS RLO
R
INS
✓
1.1 Optional Z550A Remote Control
The optional remote control with triggering key on the test probe
and a key for illuminating the measuring point makes it possible to
use the measuring instrument at difficult to access places.
For safety reasons, a predefined voltage is only applied to the test
probes for as long as the triggering key is held depressed.
The start key on the test instrument should be used instead of
remote control for triggering polarization and absorption index
measurements, because these two measurements involve complete measuring cycles.
6 GMC-I Messtechnik GmbH
2 Safety Features and Precautions
Attention!
!
Attention!
!
Attention!
!
Attention!
!
!
XY123
2012-06
D-K
15080-01-01
Consecutive number
Registration number
Date of calibration (year – month)
Deutsche Akkreditierungsstelle GmbH – calibration lab
The electronic measuring and test instrument is manufactured
and tested in accordance with safety regulations IEC/EN 610101/VDE 0411-1 and EN 61 557.
safety of the operator, as well as that of the instrument, is assured.
Read the operating instructions thoroughly and carefully before
using your instrument. Follow all instructions contained therein.
The measuring and test instrument may not be placed into service:
• If the battery compartment lid has been removed
• If external damage is apparent
• If connector cable or measuring adapters are damaged
•If the instrument no longer functions flawlessly
• After extraordinary damage due to transport
• After a long period of storage under unfavorable conditions
(e.g. humidity, dust or extreme temperature).
Opening of Equipment / Repair
The equipment may be opened only by authorized service personnel to ensure the safe and correct operation of the equipment
and to keep the warranty valid.
Even original spare parts may be installed only by authorized service personnel.
In case the equipment was opened by unauthorized personnel,
no warranty regarding personal safety, measurement accuracy,
conformity with applicable safety measures or any consequential
damage is granted by the manufacturer.
Data Backup
We advise you to regularly transfer your stored data to a PC in
order to prevent potential loss of data in the test instrument.
We assume no responsibility for any data loss.
We recommend ETC software (Electric Testing Center) for back-
ing up, processing and managing data.
Meaning of Symbols on the Instrument
Warning concerning a point of danger
(Attention, observe documentation!)
Protection class II device
When used for its intended purpose,
If battery voltage has fallen below the allowable lower
limit, the pictograph shown at the right appears. The
instrument does not function if the batteries have been depleted
excessively, and no display appears.
3.2 Installing or Replacing Batteries
New batteries must be inserted for initial start-up, or if only one
filled segment remains in the battery symbol.
Before opening the battery compartment (see page 5 for
location), disconnect the instrument from the measuring
circuit (mains) at all poles.
Eight 1.5 V size AA batteries in accordance with IEC LR 6 are
required for operation of the insulation measuring instrument. Use
new alkaline manganese batteries only.
Rechargeable NiCd or NiMH batteries may also be used. These
can be charged externally or by connecting the Z502R charger to
the test instrument. We recommend rechargeable NiMH batteries.
Always replace batteries in complete sets.
Dispose of batteries in an environmentally sound fashion.
➭ Loosen both slotted screws for the battery compartment lid
on the back, and remove the lid.
➭ Remove the battery holder and insert eight 1.5 V size AA bat-
teries with correct polarity in accordance with the symbols.
Make sure that all of the batteries are inserted with correct
polarity. If just one battery is inserted with reversed polarity, it will not be recognized by the instrument and may
result in leakage from the batteries.
➭ Push the battery holder into the battery compartment such
that the battery holder’s contacts touch the contact springs at
the bottom of the battery compartment (see drawing on
page 3).
If the battery holder is not inserted as specified, the instrument
cannot be supplied with power.
➭ Replace the battery compartment lid and retighten the
screws.
Charging socket for extra-low direct voltage (Z502R
charger)
Attention!
Only rechargeable batteries may be inserted when the charger is connected.
EC mark of conformity
The device and included batteries may not be disposed of with the trash. Further information regarding
the WEEE mark can be accessed on the Internet at
www.gossenmetrawatt.com by entering the search
term “WEEE”.
Calibration Seal (blue seal):
See also “Recalibration” on page 38.
3 Initial Start-Up
3.1 Battery test
Four different battery symbols, ranging from fully depleted to fully
charged, continuously indicate the momentary charge level in the
upper left-hand corner of the display
GMC-I Messtechnik GmbH 7
The instrument may only be placed into service if the
battery compartment lid is securely fastened!
3.3 Charging the Batteries in the Tester
Use only the Z502R charger (available as an accessory)
to charge batteries which have already been inserted into
the test instrument.
Make sure that the following conditions have been fulfilled before connecting the charger to the charging socket:
– Rechargeable batteries have been installed with
correct
polarity (not standard batteries)
– The test instrument has been disconnected from the
measuring circuit at all poles
– The instrument must remain off during charging.
Refer to section 12.2.1 with regard to charging batteries which
have been inserted into the tester.
If the batteries or the battery pack have not been used or
recharged for a lengthy period of time (> 1 month), thus resulting
in excessive depletion:
Observe the charging sequence (indicated by the LED at the
charger) and initiate a second charging sequence if necessary
(disconnect the charger from the mains and from the test instrument to this end, and then reconnect it).
3.4 Device Settings – SETUP
SETUP
LED and LCD test menu
Battery test menu
Brightness/contrast menu
Software revision level
Calibration date
Display: date / time
Display: automatic shutdown
Display: automatic shutdown
of display illumination after 30 s.
of the tester after 120 s. Time, language, profiles
1
2
3
4
0b
0a
0
Return to main menu
Limit LED: test red
Limit LED: test green
Cell test
Inverse cell test
Hide all pixels
Show all pixels
Acoustic signal test
1
Return to main menu
Increase brightness
Decrease brightness
Increase contrast
Decrease contrast
Set time
→
Default settings →
User interface
language
→
3
3a
3b
3c
3d
Set date →
On-time for
display illumination / tester
0b
Return to submenu
0a
Display Illumination On-time
Brightness and Contrast Settings Time, On-Time and Default Settings
Menu Selections for Operating Parameters
LED Tests LCD and Acoustic Signal Tests
Test Instrument On-Time
Automatic shutdown,
deactivated = OFF
8 GMC-I Messtechnik GmbH
SETUP
LED and LCD test menu
Battery test menu
Brightness/contrast menu
Software revision level
Calibration date
Display: date / time
Display: automatic shutdown
Display: automatic shutdown
of display illumination after 15 s.
of the tester after 45 s.
Time, language, profiles
1
2
3
4
0b
0a
0
Return to main menu
Increase brightness
Decrease brightness
Increase contrast
Decrease contrast
Set time
→
Default settings →
User interface
language
→
3
3a
3b
3c
3d
Set date →
On-time
for display illumination / tester
Set time
Menu Selection for Operating Parameters
Adjusting Brightness and Contrast Set Time, Language, Profiles, Acoustic Signal
Set date
Select time/date
Increase
Increase
hours
Activate
settings
minutes
3a
Increase
seconds
Return to submenu
Decrease
Decrease
hours
minutes
Decrease
seconds
Select time/date
Increase
Increase
day
Activate
settings
month
3b
Increase
year
Return to submenu
Decrease
Decrease
day
month
Decrease
year
GMC-I Messtechnik GmbH 9
Significance of Individual Parameters
Note
Attention!
!
0a
0b23c
3d
4
Test Instrument On-Time
The period of time after which the test instrument is automatically
shut off can be selected here. This selection has a considerable
influence on the service life and the charging status of the batteries.
On-Time for LCD Illumination
The period of time after which LCD illumination is automatically
shut off can be selected here. This selection has a considerable
influence on the service life and the charging status of the batteries.
Submenu: Battery Level Query
Battery voltage U
the battery to a load.
(Uo) can be queried here without subjecting
BAT
Data are lost when the language
is changed, or if the instrument is
reset to its default settings!
Back up your measurement
data to a PC with the help of
ETC software before pressing the respective key.
The prompt window shown at
the right asks you to confirm
deletion.
User Interface Language (CULTURE)
➭ Select the desired language with the appropriate country
code and acknowledge your selection by pressing the ✓ key.
Measuring Sequence
If battery voltage drops to below 8.0 V
during the course of a measuring
sequence, this is only indicated by
means of a pop-up window. Measured
values are invalid. Measurement results cannot be saved
to memory.
➭ Press ESC in order to return to the main menu.
Default Settings (GOME SETTING)
The test instrument is returned to its original default settings when
this key is activated.
Firmware Revision and Calibration Information (example)
➭ Press any key in order to return to the main menu.
10 GMC-I Messtechnik GmbH
START/STOP SHIELD COM
Option Z550A
+
KS-C
(Z541F)
+
C
O
M
SH
I
E
L
D
Limit
Green
Limit
Red
Uramp
Green
Uramp
Red
Red
!
Limit
4 General Operation
4.1 Connecting the Instrument
The test leads are connected to the “+” and “COM” jacks.
Special Case:
When inserting
the 3-pole plug,
make sure that
the jack plug is
inserted in the
START/STOP
position. Press
and align the 3pole plug such
Test Probe for Remote Triggering (Option Z550A)
4.3 Optical Indicators
LED Status
Function – Cause
Limit Value Indication
– Measured insulation resistance does not violate the limit
value.
– Measured low-resistance Rlo does not violate the limit
value.
Limit Value Indication
– Measured insulation resistance has fallen short of the
selected limit value.
– Measured low-resistance Rlo does has exceeded the
permissible limit value.
Indication of ramp characteristics
– Maximum ramp voltage (upper voltage limit) has been
reached (without breakdown).
that it is placed
flush on the connection terminal.
This is the only
way to assure
that the three
contacts of the
jack plug are
properly connected with the command cables.
Special Case: Measuring High-Value Resistance with the KS-C Probe (Option)
When measuring
electrostatic discharge capacity
for floor coverings, the shielded
cable should be
connected to the
COM and SHIELD
jacks (KS-C
accessory set,
“cable set consisting of measurement cable
and high-resistance measurement cable for
measurements in the GΩ range”, see diagram). Be sure to
observe color coding.
1
Function testing should be executed at regular intervals (see following
section regarding testing the LEDs).
Testing the LED which Indicates Detection of Interference Voltage
when Switched Off – OFF Switch Position
➭ Apply a voltage of greater than 50 V (+ and COM jacks).
➭ Turn the rotary switch to the V position.
➭ Read the voltage value at the LCD.
➭ Turn the rotary switch to the OFF position.
Test results: If applied voltage is unchanged and the LED which
indicates the detection of interference voltage lights up red, the
Indication of ramp characteristics
– Maximum ramp voltage (upper voltage limit) has not been
reached (due to breakdown).
Breakdown voltage is displayed.
Interference voltage in switched-off condition
lings of test voltage during insulation measurement
Dangerous voltage of greater than 50 V is present at the measurement inputs:
– Initialization of insulation resistance and
low-resistance measurement is disabled.
– High test voltage is applied to the measuring terminals
(Riso/Rins, PI and DAR) during insulation measurement
Detection of interference voltage in the on-state
in the resistance measuring ranges after starting measurement
The value of interference voltage is displayed in addition to signalling
in the resistance measuring ranges for as long as it is present.
1
and signal-
LED is OK. In this case, the LED reliably indicates interference
voltage even when the instrument is switched off. We recom-
4.2 Switching On, Monitoring and Switching Off
If supply voltage drops to a value of less than 8.5 V, the
LOW BATT pop-up message appears: No more measurements
can be started.
If battery voltage falls below the allowable limit value of 8.0 V, the
mend executing this test at regular intervals.
METRISO XTRA Measuring Functions, Measuring Ranges and
Limit Values
Measuring Ranges
instrument cannot be switched on, or it is switched off.
Measurements cannot be started in the resistance measuring
ranges in the event of interference voltage.
The instrument only switches itself off automatically after comple-
tion of an (automatic) measuring sequence, and after the predetermined on-time has expired (see page 8). On-time is reset to its
original value as defined in the setup menu, as soon as any key or
the rotary function switch is activated.
/ R
R
ISO
INS
/ R
R
ISO
INS
/ R
R
ISO
INS
R 10 ... 10 kΩ
R
LO
U 0 ... 1000 V
U = 50, 100, 250, 500, 1000 V
Uvar = 50 ... 1000 V
Uramp (U ) = 100 ... 1000 V
0.01 ... 10 Ω
If the instrument is switched off automatically with the rotary
switch in any position other than OFF, it can be reactivated by
pressing the ESC key. The instrument is also reactivated if the
Limit Values
rotary switch is activated and turned through the OFF position.
/ R
Limit R
The instrument can be switched off manually by turning the rotary
switch to the OFF position.
GMC-I Messtechnik GmbH 11
ISO
PI limit Adjustable 1.0, 1.1, 1.5, 2.0, 3.0, 4.0
DAR limit Adjustable 1.25, 1.6
Limit R
LO
Fixed setting 50 kΩ @ U
INS
Fixed setting 100 kΩ @ U
Fixed setting 500 kΩ @ U
Fixed setting 1 MΩ @ U
Fixed setting 1 MΩ @ U
Fixed setting 1 MΩ @ U
Fixed setting 2 Ω
ISO/UINS
ISO/UINS
ISO/UINS
ISO/UINS
ISO/UINS
ISO/UINS
= 50 V
= 100 V
= 250 V
= 500 V
= 1000 V
= Uvar
4.4 Measurement Value Display and Memory
Note
HELP
1
2
3
2
The following appear at the display panel:
• Measurement values with abbreviations and units of measure
• Selected function
• Error messages
Measurement values for automatic measuring sequences are
stored and displayed as digital values until the next measurement
sequence is started, or until automatic shut-off occurs.
4.5 Help Function
A wiring diagram can be displayed for selected switch positions,
as well as basic functions after they have been selected with the
rotary selector switch:
➭ Press the HELP key in order to query online help.
➭ Press the ESC key in order to exit online help.
If the upper range limit is exceeded, the upper limit value is displayed and is preceded by the “>” symbol (greater than), which
indicates measurement value overrun.
The depiction of LEDs in these operating instructions
may vary from the LEDs on the actual instrument due to
product improvements.
4.6 Setting Measuring Parameters using Insulation Resistance Measurement as an Example
1 Access the submenu for setting the desired parameter.
2 Select a parameter using the ↑ or ↓ scroll key.
3 The setting value is not permanently accepted for the respective measure-
ment until the ✓ key is pressed, after which the display is returned to the
main menu. You can return to the main menu by pressing ESC instead of
✓, without accepting the newly selected value.
12 GMC-I Messtechnik GmbH
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