Gossen metrawatt Metriso Prime+ User Manual

Operating Instructions
METRISO PRIME+
Digital High-Voltage Insulation Test Instrument
3-349-822-03
Test instrument may only be operated under the supervision of a qualified electrician!
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1 Function selector switch
Attention!
!
Note
Switch positions:
SETUP: General device settings
Print out measured values and reports
Select data memory function
OFF: Switches the test instrument off * TEST: Select measuring and test parameters,
and execute measurements and tests 2 : Select main menus and submenus, and adjust values 3 : Select main menus and submenus, and adjust values 4 Socket connector for RS 232 interface 5LCD panel 6 Signal lamp for test passed (green) / test failed (red) 7 MENU: Key for selecting and querying menus for setting
parameters, for returning to the main menu and for
stopping the measuring process 8 i/STORE: Before performing a measurement:
Key for querying context sensitive help
After performing a measurement:
Key for saving measured values and parameters to memory 9 START: Key for starting the selected test
10 Signal lamp: “testing ...” (yellow) 11 Pushbuttons (left and right) for releasing the handle 12 Pushbuttons (left and right) for releasing the cover 13 Cover 14 SECUTEST PSI printer module 15 Handle and bar function as a tilt stand
16 Inlet plug for supply power with fuse compartment 17 Connector jack for guard cable (feature G1) 18 Connection for automotive charging adapter J1 19 Device base
Outside: With uptake for measurement cable, test probes and alligator clips Inside: Uptake for guard cable with test probe (feature G1),
battery compartment
Connect 5 m long Leadex 5000 accessory extension cable (feature H1) to + measurement cable only!
Maximum rated voltage to earth is 1000 V~, even if perma- nently connected measurement cables for 2 kV~ CAT II are permissible.
* During battery operation: battery is disconnected
During mains operation: transformer is still connected to the mains
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PC Program ETC for communication with METRISO PRIME+
The free PC starter software ETC is used for communication with your METRISO PRIME+ test instrument. ETC is available on our homepage with the following content and functions:
• Transmission of measurement data from the test instrument to the PC
• preparation and modification of templates for test reports at the PC and transmission of the templates to the test instrument
• preparation, printout and filing of test reports at the PC
The following interface cables and/or converters are required for communication between test instrument and PC:
– Z3241 RS232 (tester*) – RS232 (PC) – RS232-USB Converter (Z501L) RS232 (tester*) – USB (PC)
* not possible via the RS232 terminal of a connected SECUTEST PSI
Downloading the Software ETC
The most up-to-date version of ETC report generating software can be downloaded free of charge from the mygmc page of our website as a ZIP file, if you have registered your test instrument:
www.gossenmetrawatt.com
Products  Software  Software for Testers
Report Software without Database 
ETC  myGMC
4 GMC-I Messtechnik GmbH
Contents Page Contents Page
1 Applications ................................................................................. 7
1.1 List of Available Features .............................................................. 8
2 Safety Features and Precautions ................................................. 9
2.1 Checklist for High-Voltage Tests .................................................... 10
2.2 Significance of Symbols ................................................................ 11
2.2.1 Symbols on the Device .............................................................. 11
2.2.2 Symbols in the Operating Instructions ........................................ 11
2.2.3 Symbols in the User Interface .................................................... 11
3 Initial Start-Up ............................................................................ 12
3.1 Battery Operation, Feature C1 ...................................................... 12
3.1.1 Removing the Device Base and Inserting or Replacing
the Battery Pack ....................................................................... 12
3.2 Mains Connection ......................................................................... 14
3.3 User Interface ............................................................................... 15
3.4 Help Functions ............................................................................. 15
3.5 Setup ........................................................................................... 16
3.5.1 Adjusting Contrast and LCD Illumination ..................................... 17
3.5.2 Setting Date and Time ..............................................................17
3.5.3 Beeper Settings ..................................................................... 18
3.5.4 Executing the Self-Test ............................................................. 19
3.5.5 Downloading a Language or a Software Update ......................... 20
4 Performing Tests ........................................................................ 23
4.1 Insulation (resistance) Test ............................................................ 23
4.1.1 Setting Test Parameters ............................................................ 24
, U
4.1.2 Starting the Test (U
4.1.3 Starting the Test (U
NOM
STEP
) ................................................... 25
VAR
) ............................................................ 25
4.1.4 Data logger function (min log)(as of firmware version AH) ............ 26
4.1.5 Measurements with the Guard Cable (feature G1) ...................... 27
4.2 Polarization Index Measurement ................................................... 28
4.3 Breakdown Voltage ..................................................................... 30
4.3.1 Setting Test Parameters ........................................................... 31
4.3.2 Starting the Test ....................................................................... 31
4.4 Capacitance Measurement and Determination of Dielectric Discharge (optional)
.................................32
4.4.1 Setting Test Parameters ........................................................... 32
4.4.2 Starting the Test ....................................................................... 33
4.5 Voltage Measurement (protection against residual voltage) ........... 34
4.5.1 Setting Test Parameters ........................................................... 35
4.5.2 Starting the Test ....................................................................... 35
5 Processing, Reorganizing and Deleting Data ............................. 36
5.1 Select Device under Test (DUT) .................................................... 36
5.1.1 Entering Descriptions ............................................................... 37
5.1.2 Copying Descriptions ............................................................... 38
5.1.3 Deleting Descriptions ............................................................... 38
5.2 Processing Data (checking measured values) ................................ 38
5.3 Data Reorganization ..................................................................... 39
5.3.1 Deleting Already Printed Data ................................................... 39
5.3.2 Memory Test ........................................................................... 39
5.4 Clearing the Memory ................................................................... 40
6 Printing Test Results ................................................................. 41
7 Characteristic Values ................................................................. 42
8 Data Interfaces .......................................................................... 45
8.1 RS 232 Serial Interface ................................................................. 45
8.1.1 Software Analysis of Measurement Results ................................ 45
8.1.2 Interface Specification and Protocol ........................................... 45
8.1.3 Connector Pin Assignments ...................................................... 45
9 Displays and Error Messages – Causes – Remedies ................ 46
4.2.1 Setting Test Parameters ............................................................ 29
4.2.2 Starting the Test ....................................................................... 29
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10 Maintenance ...............................................................................48
10.1 Replacing the Mains Fuse ..............................................................48
10.2 Testing of Rechargeable Batteries ..................................................48
10.3 Housing and Test Probes ...............................................................48
10.4 Measurement Cables ....................................................................49
10.5 Software .......................................................................................49
10.6 Recalibration ................................................................................50
10.7 Device Return and Environmentally Compatible Disposal .................50
11 Appendix .....................................................................................51
11.1 Glossary ......................................................................................51
11.2 Minimum Display Values in Consideration of
Measuring Error ............................................................................51
Voltage at Device Under Test During Insulation Resistance Test .................. 52
11.3
11.4 Index ............................................................................................53
12 Repair and Replacement Parts Service,
Calibration Center and Rental Instrument Service ................................. 54
13 Product Support ..........................................................................55
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1 Applications

!
The METRISO PRIME+ insulation measuring instrument is in compliance with the following standards and regulations:
Standard DIN EN 61557-1:2007
DIN EN 61557-2:2008
VDE regulation VDE 0413-1:2007
VDE 0413-2:2008
“Equipment for testing, measuring or monitoring protective mea­sures in systems with line voltages of up to 1000 V AC and 1500 V DC, part 2, insulation resistance measuring instruments”.
The instrument is suitable for the measurement of insulation resis­tance at voltage-free devices and equipment with nominal volt­ages of up to 1000 V. It is also suitable for the measurement of insulation resistance with values of up to 1 T, and open-circuit voltages of up to 5000 V.
The instrument is also equipped with a 1000 V measuring range for direct and alternating voltages. This provides users with the advantage of checking devices under test for the absence of volt­age, and discharging capacitive devices under test.
All of the values required for approval reports can be measured with this instrument.
The SECUTEST PSI module (feature I1) – a printer which can be inserted into the cover which includes an integrated interface and keypad – expands the range of possible applications for the METRISO PRIME+.
All measured data can be archived with the help of measurement and test reports which can be printed out directly via a PC. This is a very important feature, especially with regard to product reliability.
Using the test probes (Electrical Safety)
Maximum rated voltage 300 V
Measuring category
With safety cap attached
Without safety cap
CAT IV CAT II I CAT I I
600 V
1000 V 5000 V
——

Attention!
Measurements per DIN EN 61010-031 may only be performed in environments in accordance with mea­suring categories III and IV with the safety cap attached to the test probe at the end of the measure­ment cable.
In order to establish contact inside 4 mm jacks, the safety caps have to be removed by prying open the snap fastener with a pointed object (e.g. the other test probe).
Notes Regarding SECUTEST PSI Operating Instructions
In combination with the METRISO PRIME+, the SECUTEST PSI printer module is only used for printing out measured values and for entering comments with the alphanumeric keypad.
The following chapters from the SECUTEST PSI operating instructions are relevant as regards operation together with the METRISO PRIME+:
• Chapter 2 Safety Features and Precautions
Chap. 3.1 and 3.2
Installing the Batteries and the PSI Module
• Chapter 12 Characteristic Values
• Chapter 13 Maintenance
• Chapter 14 Repair and Replacement Parts Service The following functions are not active, or only make sense in com-
bination with a SECUTEST test instrument:
• Display, print and store reports to memory
• Statistics
• Operation with a barcode scanner
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1.1 List of Available Features

Features 0 0102040507101543
with
with
with
with
GB in-
ter-
D
FRAFNLD
nati-
ESPEITAICHECHUSA
NL
USA
onal
Country version (user interface language,
A
mains plug type)
Set of batteries C none
“Guard 5000A” measurement cable
“LEADEX 5000” extension cable
SECUTEST PSI printer module
G none
H none
I none
Specify the designation of the basic M5000 instrument in your order, as well as any features which deviate from feature 0!
Example of a complete type designation (= article number, = order code) for a METRISO PRIME+:
– Test instrument for German speaking countries with DAkkS
3)
calibration certificate
and SECUTEST PSI printer module:
M5000 A01 I1
3)
The test instrument can be recalibrated by our calibration service at any time. We recommend a calibration interval of 1 to 2 years.
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2 Safety Features and Precautions

The METRISO PRIME+ test instrument have been manufactured and tested in accordance with the following safety regulations:
Standard DIN EN 61557-1:2007
DIN EN 61557-2:2008 IEC 61010-1:2010 DIN EN 61010-1:2011
VDE regulation VDE 0413-1:2007
VDE 0413-2:2008 VDE 0411-1:2011
If used for its intended purpose, safety of the user, the instrument and the device under test is assured.
Read the operating instructions completely and carefully before using the device, and follow all instructions included therein. The operating instructions should be made available to all users.
Observe the following safety precautions:
• The instrument may only be connected to a 230 V or 120 V electrical system (depending on the country-specific design) which is protected with a fuse or circuit breaker with a maxi­mum nominal current rating of 16 A.
• Be prepared for the occurrence of unexpected voltages at de­vices under test (for example, capacitors may be dangerously charged).
• Make sure that connector, measurement and test cables are not damaged (i.e. broken insulation, kinks, interruptions etc.).
• Impulse withstand voltage of up to 2.5 kV may occur in measurement category II systems with 230/400 V.
• If only the batteries are to be charged (instrument is ready for operation in SETUP position), please ensure that the test in­strument cannot be used by unauthorized personnel during the charging process.
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• Measurement may only be performed on voltage-free equip­ment and devices.
• Measurements may not be performed under moist ambient conditions, where condensation has occurred, or in explosive atmospheres.
• Do not disconnect the measurement cables until the device under test has been fully discharged.
• Observe accident prevention regulation (Health and Safety Pol­icy DGUV regulation 3), “Electrical Systems and Equipment”.
• Do not perform measurements alone: always have a second person help if possible.
• Make sure that measurement cables are connected correctly.
• Do not touch the test probes at any point beyond the finger guard.
The METRISO PRIME+ may not be used:
• If visible damage is apparent
• With damaged connector, measuring or test cables (test ca­bles may not, under any circumstances, be mechanically dam­aged or kinked, because impaired insulation characteristics may otherwise result)
• If these no longer function flawlessly
In such cases, the devices must be removed from service and secured against any possible inadvertent use. Send the instrument to our Repair and Replacement Parts service department in such cases (see chapter 12 on page 54).
Opening of Equipment / Repair
Attention!
!
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.

2.1 Checklist for High-Voltage Tests

Measurements may not be performed under moist ambi­ent conditions, where condensation has occurred or in explosive atmospheres.
Personnel Safety
Turn the machine under test off and lock it in the off position.
Perform insulation resistance measurement.
Make sure that the system is grounded.
Secure the danger zone with barriers, closing even narrow en-
trance ways.
Set up warning signs such that they are plainly visible.
Set up warning lamps such that they are plainly visible.
Attach the emergency stop button in a plainly visible fashion.
Warn personnel working in the area of possible danger.
Always turn the test instrument off with the key switch and re-
move the key before leaving the work area.
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Safety Precautions for the Machine Under Test (recommended)
Review the circuit diagrams and make a note of all electrical circuits.
Disconnect the neutral conductor from the mains.Short circuit each electrical circuit to itself.Disconnect control circuits with overvoltage arresters, if the ar-
resters would be triggered by utilized test voltage.
Disconnect PELV circuits (no high-voltage testing is required
for these circuits).
Test insulation at each circuit with 1000 V.
(If insulation resistance is OK at 1000 V, no failures should occur during the high-voltage test.)
Disconnect frequency converters.Caution in TN systems!
The protective conductor is connected to the neutral conduc­tor in the junction box. High-voltage is thus applied between the phase conductors and the neutral conductor. The neutral conductor must be cut if necessary, because it is not disconnected from the mains by means of fuses.
Setting Up the Test Instrument
High-Voltage Test
Test all circuits (conductors) against the protective conductor (all switches in the mains circuit must be turned on, and testing must be performed upstream and downstream from all relays and contactors).
Remove all shorting devices after testing has been completed.
Testing Without Short-Circuiting
Separately test all conductors from all circuits against the pro-
tective conductor (the machine could be damaged in the case of arc-over).
Functions Test
The machine must be tested for correct functioning after the
high-voltage test, especially as regards safety functions.

2.2 Significance of Symbols

!
!

2.2.3 Symbols in the User Interface

2.2.1 Symbols on the Device

The symbols on the device have the following meanings:
Indicates EC conformity
Life endangering for the operator if the wiring dia­gram and the operating instructions are not observed!
Warning concerning a source of danger (attention: observe documentation!)
This device 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’.
Report functions
Data management

2.2.2 Symbols in the Operating Instructions

High-voltage warning,
Voltage at the test probe between 1000 and 5000 V
Warning concerning a source of danger,
Voltage at the test probe between 25 and 1000 V
Insulation measurement: interference voltage at the test probes
All-clear after an insulation test: voltage at test probes less than 25 V
Timer function: symbolizes test duration
This symbol appears after the voltage measure­ment value has been frozen (see chapter 4.5 on page 34).
Life endangering for the operator if instructions identified with this symbol are not observed
Danger for the operator and the device if instruc­tions identified with this symbol are not observed
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Indicates progress of the test.
Indicates storage of the measurement value.

3 Initial Start-Up

Attention!
!
Attention!
!
Attention!
!
The METRISO PRIME+ test instrument is supplied with a base which serves as a compartment for storing test cables, the guard cable (feature G1), the test probes and the battery pack (feature C1).

3.1.1 Removing the Device Base and Inserting or Replacing the Battery Pack

Please observe instructions included in this chapter if the device is to be retrofitted with a battery pack, or if the battery pack requires replacement.
The test instrument may only be operated if the base is properly attached and secured.

3.1 Battery Operation, Feature C1

The battery pack is required for operation of the METRISO PRIME+ without mains power. The battery back includes 8 NiMH batteries. No other battery packs may be used.
The battery pack is charged automatically by the integrated mains power pack. Optional use of an automotive charging adapter is also possible. The device must be switched on in this case (any switch position other than OFF).
If only the batteries are to be charged (instrument is ready for operation in SETUP position), please ensure that the test instrument cannot be used by unauthorized personnel during the charging process.
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Close the cover and position the handle at the side of the de-
Turn the device upside down, i.e. place it onto its cover.
Unwind the test cables from the cable uptake at the side.
Remove the guard cable from the device base if one is in-
Loosen the three Phillips head screws at the bottom of the de-
Lift the device base up, and set it down at the side of the de-
Place the battery pack onto the two rubber cushions in the re-
Before dismantling the device base:
– Disconnect the device from the measuring circuit at all
poles. – Disconnect the device from mains power. – Turn the device off (set the switch to OFF).
vice.
cluded (feature G1).
vice base.
vice with the feet at the bottom.
cess in the device base such that the connector cable with plug connector from the battery pack is on the same side as the device’s connector cable with socket connector. Double-check: The opening at the side of the base coincides with the device’s connection panel.
Connect the two cables to each other and secure the connec-
tion with the snap hooks.
Position the cable such that is cannot be pinched during sub-
sequent assembly.
Carefully set the device onto the base as shown in the photo
by grasping the handle with one hand, and guiding the bottom of the device into position with the other hand.
Grasp the base and the device, and turn the entire unit upside
down.
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Secure the base with the included screws and washers.
Attention!
!
L1
N
green-yellow
green-yellow
PE
L1
L2
L3
N
PE
L1
L2
L3
N
green-yellow
U
L–N
= 230 V
Use only the screws furnished with the device together with washers. Longer screws may reduce creepage dis­tances or damage the device.
If a battery pack (feature C1) has been installed and the device is not connected to the mains, the battery symbol appears at the display when the device is switched on, and the number of dark bars displayed in the symbol indicates the battery charge level. After installing the battery pack, the device is automatically sup­plied with power from the batteries.

3.2 Mains Connection

Connect the test instrument to 230 V or 120 V mains power
(depending on the country-specific design) with the included mains connector cable.
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Attention!
!
If a connection via earthing contact outlet is not possible,
SETUP
disconnect the mains from all sources of voltage before connecting the cables of the coupling socket via pick-up clips with the mains connections, as shown in the draw­ing.
If a battery pack has not been installed, the mains connection symbol appears after the test instrument has been switched on.
If a battery pack has been installed (feature C1), it is automatically recharged. The battery symbol appears at the display, and the blinking bars shown in this symbol indicate the remaining capacity which still needs to be charged. The device need not be disconnected from mains power after the batteries have been fully charged (overcharge protection).

3.3 User Interface

Measuring and testing with the METRISO PRIME+ is quick and easy. The integrated user interface provides the operator with in­formation regarding required operating steps, operator errors, measurement results and more for all measuring functions. All in­formation and measurement results appear at a dot matrix LCD panel in plain text.
The integrated user interface is entirely adequate for the great majority of all tests and measurements. Nevertheless, operators should carefully read and understand the contents of these oper­ating instructions.

3.4 Help Functions

Help texts can be queried and displayed at the LCD for all mea­suring and test functions, and for practically all settings.
Example: Display Contrast Function
Switch Position
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Press the STORE key in order to query online help:
STORE
MENU
START
SETUP
MENU
MENU
Query Help
Press the same key once again, or the MENU key, in order to
exit the help function:
Exit Help
or
Start the selected function directly from the help menu by
pressing the START key:

3.5 Setup

Various basic settings can be selected for the test instrument with the selector switch in the SETUP position.
Select Parameter
Open Menu for Entering Parameters
All setting and changes entered to the menu accessed in the SETUP switch position are saved to memory automatically, and are retained after disconnecting the device from mains power.
Start Function
Exit Function
Restoring default setting – standard values
Switch off the test instrument: switch position OFF. Then press and hold the MENU and i/STORE keys simultane­ously, and turn the function key to TEST position. The standard values of the default setting are thus restored.
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3.5.1 Adjusting Contrast and LCD Illumination

SETUP
MENU
START
SETUP
MENU
START
Contrast can be increased or decreased with this function. LCD illumination can be switched on or off as well.
Select Display Contrast

3.5.2 Setting Date and Time

The test instrument’s internal clock can be set with this function. The clock continues to run after supply power has been discon­nected. Date and time are included in the test reports.
Entries are made using the following formats:
Date: DD.MM.YYYY (Day.Month.Year) Time: hh:mm (Hour:Minute)
Open Entry Menu
Adjust Contrast
Select Date/Time
Open Entry Menu (and select date or time)
Switch Illumination On or Off *
* Background illumination is switched off automatically after approximately 2.5 min-
ute s i f n one of the k ey s a re activ ated dur in g this time . Each time a key is ac tivat ed , background illumination is extended for an additional 2.5 minutes.
Select Cursor Position
Change Values
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3.5.3 Beeper Settings

SETUP
MENU
The beeper can be completely deactivated or activated as indi­cated in the table below.
Beeper deactivated
Beeper upon key stroke
Beeper upon good/ bad measurement results *
Intermittent beeper for high­voltage > 1000 V
* a good measurement result (passed) is indicated with one long acoustic signal,
a bad result (failed) with three brief acoustic signals.
Beeper activated
——

 
Beeper for measuring functions
Beeper for high-voltage
Select Beeper
Open Entry Menu
Select Beeper Function
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3.5.4 Executing the Self-Test

SETUP
MENU
START
START
Note
This function displays important device data first. If required, dis­play lamp and relay functions, as well as other options, can be tested automatically and results appear at the display.
Battery Voltage and LED Test
Select Self-Test
Open Entry Menu
Continue Test
Results: OK
Error message:
– Test failed – component defective – component not available (e.g. batteries not inserted or
high-voltage module not available)
LCD Test
Neighboring horizontal and vertical segments of the LCD panel are activated separately or test images are indicated by means of the following tests. If one of the segments fails to blink, send the test instrument to an authorized service center for repair.
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Before a check mark appears to indicate correct func­tioning the LEDs must first blink, and the relays must switch.

3.5.5 Downloading a Language or a Software Update

Note
If you require a language other than one of those included with the instrument, it can be downloaded with the help of WinProfi* PC software. The data file with the desired language is transmit­ted to the test instrument via the serial interface. The previously installed language is overwritten. Software updates can be downloaded with the help of the same program, regardless of the currently installed language.
You can use WinProfi software at the PC side (included with the METRISO PRIME+) to download a language to the test instrument. This software includes all of the func­tions required for communications between the METRISO PRIME+ and the PC. A description of the pro­gram is included in the online user’s manual which can be accessed from WinProfi.
A Installing WinProfi to the PC and Starting the Program
Download the WinProfi software from our homepage:
http://www.gossenmetrawatt.com (Products Software Software for Testers WinProfi)
Unzip the zip file „winprofi.zip“.
Install the software on your PC by executing file Setup_Win-
Profi_Vx.xx.exe.
Select the desired language for the WinProfi software and for
the user interface of the test instrument.
Follow the instructions which appear at the monitor.
The program is added to your start menu after installation.
Connect the METRISO PRIME+ with your PC by means of an
appropriate interface cable, see page 4.
Start WinProfi.
Switch on the test instrument.
Displaying and printing out the online user’s manual
(contains information concerning the software which is not included in these operating instructions).
* WinProfi is currently applicable up to Windows 7 (32 Bit)
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B Prerequisites for Software Update or Exchange of Data
Note
Attention!
!
Find the interface to which the METRISO PRIME+ is con-
nected.
Always start this function first, before performing an update or changing report templates. After starting this function, WinProfi loads the report files required specifically for the connected instrument. Due to the fact that WinProfi has been created for use with several types of test instruments, incorrect test reports may otherwise be loaded, or erroneous options may be made available.
Querying information regarding current software version
C Transmitting a Software Update to the Test Instrument
PC: Select Update all from the update menu. Follow the instruc-
tions which appear at the monitor.
Depending upon the utilized PC, updating takes from 1 to 2 min­utes.
The green LED indicates that the instrument is ready to receive data. If the PC and the test instrument are correctly synchronized, the yellow LED lights up and the green LED goes out. The red LED lights up during programming sequences. After transmission has been completed, the LED goes out and the device is restarted.
The message “Transmission done” appears at the PC.
The instrument may not, under any circumstances, be switched off during transmission, nor may the connec­tion between the instrument and the PC be interrupted!
• Subsequently select “Language” (loading the respective lan­guage), if applicable.
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D Organizing Report Data with ETC
ETC is a free starter software program for fast report generation of your measuring results in conjunction with our test instruments. ETC offers a variety of supporting options for data logging, data management as well as report generation.
Downloading the Software ETC
The most up-to-date version of ETC report generating software can be downloaded free of charge from the mygmc page of our website as a ZIP file, if you have registered your test instrument:
www.gossenmetrawatt.com
Products  Software  Software for Testers
Report Software without Database 
ETC  myGMC
22 GMC-I Messtechnik GmbH

4 Performing Tests

Each of the following tests is automatically assigned to one cur­rently available object number. Any given test which is saved to memory with the “STORE” key is stored with reference to this number. The object number can be entered in the “DUT data” menu (see chapter 5.1 on page 36).
Measuring mode operation is always carried out according to the follow­ing sequence:
• Select the desired test.
• Enter test parameters (if required).
• Start the measurement or return to the initial menu.
• Save measured values to memory and enter a description (if desired).
Observe the following for all tests:
• Safety features and precautions, see chapter 2.
• Disconnect the device under test from all sources of voltage first.
• Test for absence of voltage.
• Do not disconnect the measurement cables until the device under test has been fully discharged.

4.1 Insulation (resistance) Test

Test voltage can be set between 100 V and 5,000 V for this test. This voltage, as well as the allowable limit value for insulation resistance, can be selected as a test parameter.
Voltage at the device under test appears at the LCD in addition to measured insulation resistance.
Discharge
After the measurement has been completed, the device under test is discharged automatically in order to assure zero voltage. The falling voltage value can be observed at the display during the discharging process. The measured insulation resistance value remains in memory during this period of time.
Interference Voltage
If voltage is present at the test probes after mea­surement is started, an “external voltage” warning appears at the display. The level of the interference voltage is shown at the display. The insulation test is aborted after the test probes have been removed from the DUT. The test has to be conducted again on the de-energized DUT.
GMC-I Messtechnik GmbH 23
Attention!
!
Do not touch the test probes during measurement!
Note
TEST
MENU
MENU
A direct voltage of up to 5000 V is present between the test probes.
Testing the Measurement Cables:
Initial testing should be performed after short-circuiting the measurement cables with their test probes. The instrument should display nearly zero M. A broken mea­surement cable can be detected in this way.

4.1.1 Setting Test Parameters

The type of utilized test voltage can be selected here:
• Fixed test voltage
Variable test voltage
(e.g. lower test voltage for voltage-sensitive components)
Test voltage in a sequence of steps (U order to allow for better evaluation of insulation quality with re­gard to dielectric strength
Additional parameters must be set as well depending upon the selected type of test voltage.
Select Parameter
= step voltage), e.g. in
STEP
Select the Test
Set Value
Open the Submenu
24 GMC-I Messtechnik GmbH
Significance of Parameters with Variable and Fixed Test Voltage
Note
START
START
Test voltage U
U
ins
Limit R
ins
: Test voltage in fixed steps
nom
U
var
(100/250/500 V, 1.00/1.50/2.00/2.50/5.00 kV)
: Variable test voltage
(100 V 5.00 kV in 50 V steps) Test voltage Limit value for insulation resistance
(If value stays below limit value: measurement failed)
Te st duration Maximum test duration in seconds
<Auto>: measurement until steady state is reached Time in sec.: Measurement = 1 to 120 seconds >>>>: cont. measurement: stop with MENU key Time in min log:Measurement = 2 to 60 minutes with automatic storage of 30 measured values at equal time intervals including information on the current test time. (see chapter 4.1.4 on page 26).
Significance of Parameters with Step Voltage Test v. U U
(INS) END
R
Lim
: Test voltage as a sequence of steps
step
Final value of the step sequence (250 V 5.00 kV in steps of 250 V)
Maximum allowable statistical deviation from the mea­sured mean value
t/250V Dwell time per step (10 s 50 s)
Resetting parameter values to default setting, see page 16.
4.1.2 Starting the Test (U
Display of results after completion of test
4.1.3 Starting the Test (U
NOM
STEP
, U
)
VAR
)
In the event of very high insulation resistances the capacitive influence of the person performing the measurement and/or of the measuring cable may distort the measured value.
GMC-I Messtechnik GmbH 25
Note
STORE

4.1.4 Data logger function (min log)(as of firmware version AH)

MENU
Note
Statistical analysis
Press the CURSOR DOWN or CURSOR UP keys to return to the previous LCD display.
If the measuring range is exceeded (overflow of display range), no statistical analysis will be performed. In this case, the individual measured values are listed, but no value for R
is calculated.
MAX
Press briefly: Save results Press & hold: Save results and activate the entry field:
A description of the measurement with up to 15 characters can be entered to the information field at the bottom. See chapter 5.1.1 regarding entry.
Select Parameter
If you choose time parameter setting "min log" from the menu, exactly 30 measured values are automatically stored during the selected test duration at time intervals between 4 seconds and 2 minutes. This makes data logger operation possible for measur­ing durations between 2 and 60 minutes. In this case, the residual time of the current measurement is not indicated in seconds, but in minutes. While the test is being performed, icon “Stored” is briefly shown in the display and the yellow signal lamp “Testing ...” disappears briefly each time a measured value is being stored. If the signal generator is activated, an acoustic signal sounds addi­tionally.
In this function, the current test time is stored for each measure­ment instead of the parameter for the test duration to ensure the temporal correlation between measured value and time of mea­surement.
Before the start of each test with data logger as described in chapter 5.1, select a new device under test to avoid the measured values being stored successively within the same DUT. This considerably facilitates the subsequent evaluation of the stored measured values.
26 GMC-I Messtechnik GmbH

4.1.5 Measurements with the Guard Cable (feature G1)

Note
+Measurement Cable
Measurement Cable
Guard Cable
Conductor
Insulation Material
Guard Rings
Contact Ring
The measurement of very high resistances necessitates extremely minimal measuring current and may be rendered problematic as a result of influences such as electromagnetic fields, humidity or surface current. An accurate test set-up is thus absolutely essen­tial.
A guard cable must be used for measurements within a range of 100 G (10 G) 1T, in order to prevent surface current from distorting measurement results. The guard rings prevent current at the surface of the insulation material from flowing from the +measurement cable to the –measurement cable, instead of through the insulation material itself.
Insert the plug from the guard cable into the appropriate jack in
the test instrument.
Plug the alligator clip onto the guard cable test probe.
Connect the alligator clip to the guard ring between the two
measuring points at the insulation material under test.
Refer to chapter 4.1.2 on page 25 regarding the measuring se-
quence
GMC-I Messtechnik GmbH 27
The following materials can be used as guard rings: alu­minum foil, copper foil or metallic hose clamps.

4.2 Polarization Index Measurement

TEST
MENU
A polarization index test is recommended for electrical machines. This procedure involves expanded testing of insulation resistance. DC measuring voltage from the METRISO PRIME+ is applied to the insulation for a duration of 10 minutes. Measured values are documented after one minute, and after ten minutes. If the insula­tion is good, the value measured after ten minutes is higher than the value measured after one minute. The relationship between the two measurement values is the polarization index. Charged material within the insulation is aligned due to the application of measuring voltage over a long period of time, resulting in polariza­tion. The polarization index indicates whether or not the charged material contained in the insulation can still be moved, thus allow­ing for polarization. This, in turn, is an indication of the condition of the insulation.
The following rules apply in general:
PI values < 1 Troubleshooting is required. PI values = 1  2 Maintenance is recommended. PI values = 2  4 DUT is OK, no immediate action is
required. Preventive maintenance can be planned according to the number of tests to be performed.
PI values > 4 DUT is in flawless condition.
Applications
Determination of moisture and contamination levels
Absorption Index (DAR)
– DC Charging Test
The absorption index test is part of the polarization index test. Insulation resistance measurements are placed in relationship to one another after 30 and 60 seconds.
Application: Faster version of the polarization index text
Select the Test
Open the Submenu
28 GMC-I Messtechnik GmbH

4.2.1 Setting Test Parameters

MENU
START
STORE
Select Parameter

4.2.2 Starting the Test

Set Value
test time for each respective function.
Significance of Parameters
The two countdown timers (10:00 and 02:00) display remaining
U
ins[nom]
Nominal insulation voltage 100/250/500 V, 1.00/1.50/2.00/2.50/5.00 kV
PI(t2/t1) Polarization index PI is the relationship between insula-
tion resistance values measured after 1 minute PI(t1), and after 10 minutes PI(t2). Other durations can be selected if required.
PI (limit) Selected polarization index limit value: appears in the
footer in the measuring menu
DAR(t2/t1) Absorption ratio DAR is the relationship between insu-
lation resistance values measured after 30 seconds DAR(t1), and after 60 seconds DAR (t2). Other dura­tions can be selected if required.
DAR (limit) Selected absorption ratio limit value: appears in the
Press briefly: Save results Press & hold: Save results and activate the entry field:
A description of the measurement with up to 15 characters can be entered to the information field at the bottom. See chapter 5.1.1 regarding entry.
footer in the measuring menu
For resetting parameter values to default setting, see page 16.
GMC-I Messtechnik GmbH 29

4.3 Breakdown Voltage

TEST
MENU
Rise
Test Duration
t
ON
t [s]
U
ins
U [V]
Step-Voltage Test – DC Charging Test
Voltage is increased up to the limit value (selected maximum test voltage) over the selected rise time during the breakdown voltage test. If voltage breakdown occurs before this value is reached, breakdown voltage U If the selected test voltage is reached, testing is continued at this voltage level until the time period selected under “test duration” has elapsed. If no breakdown occurs before the selected test duration has elapsed, the test has been passed, in which case the following display appears: U other cases.
Applications
For the recognition of cracks and holes in the insulation
is displayed.
brk
– – –. Breakdown voltage is displayed in all
brk
Select the Test
Open the Submenu
30 GMC-I Messtechnik GmbH

4.3.1 Setting Test Parameters

START
STORE
Set Parameters
Significance of Parameters with Variable and Fixed Test Voltage Test voltage U
U
ins
Rise Time after which maximum test voltage will be reached
Tes t duration Test duration at maximum test voltage
For resetting parameter values to default setting, see page 16.
: Test voltage in fixed steps
nom
U
var
(100/250/500 V, 1.00/1.50/2.00/2.50/5.00 kV)
: Variable test voltage (100 V 5.00 kV)
Test voltage (see fixed steps above)
(5 s 300 s)
(AUTO, 1 s 120 s, >>>> (continuous, burn mode))

4.3.2 Starting the Test

Press briefly: Save results Press & hold: Save results and activate the entry field:
A description of the measurement with up to 15 characters can be entered to the information field at the bottom. See chapter 5.1.1 regarding entry.
GMC-I Messtechnik GmbH 31
4.4 Capacitance Measurement and
TEST
MENU
DD
I
Disch
1min
UC
-----------------------------
1000=
Determination of Dielectric Discharge (optional)
Capacitance measurement is performed with adjustable test volt­age by charging with constant current. The measurement is per­formed with automatic range selection. One of the nominal test voltages (U used.
Dielectric Discharge Test (DD)
This test was developed for use with large machines and is per­formed, as its name indicates, during discharge. It designates the ratio of the discharge current after one minute and the product of voltage by capacitance:
DD values > 4: Troubleshooting is required DD values = 2  4 Maintenance is recommended DD values < 2 DUT is OK, no immediate
), or a freely selectable test voltage (U
nom
action is required.
) can be
var
Select the Test
Open the Submenu

4.4.1 Setting Test Parameters

Application: Determination of the magnitude of absorbed contami-
Set Parameters
nation or moisture
For resetting parameter values to default setting, see page 16.
32 GMC-I Messtechnik GmbH

4.4.2 Starting the Test

START
STORE
After capacitance has been determined, the instrument automati­cally continues with dielectric discharge testing. This takes about 30 minutes. However, the measurement can be aborted at any time by pressing the MENU key. Only capacitance is displayed in this case.
Press briefly: Save results Press & hold: Save results and activate the entry field:
A description of the measurement with up to 15 characters can be entered to the information field at the bottom. See chapter 5.1.1 regarding entry.
GMC-I Messtechnik GmbH 33

4.5 Voltage Measurement (protection against residual voltage)

Note
TEST
MENU
EN 60204 requires that voltages in excess of 60 V occurring at all accessible machine components during operation must drop to a residual voltage value of 60 V or less within a period of 5 seconds after supply power has been switched off.
Testing for the absence of voltage is performed by means of a voltage measurement which involves measuring discharge time with the METRISO PRIME+. Elapsed time as of disconnection from supply power is displayed continuously at the LCD during discharge, until the limit value of 60 is reached.
In addition to voltage type (AC, DC or AC+DC), frequency is mea­sured and displayed as well. The mean value is always read out.
In addition to voltage and frequency, voltage type (AC, DC or AC+DC) appears at the symbol field in the display.
If voltage drops by more than 5% of the measured value during a single measuring period (approx. 0.7 sec.) while performing a volt­age measurement which results in a value of greater than 60 V, a time measurement is started automatically in order to test protec­tion against residual voltage. This time measurement can be observed at the display in the symbol field. Time measurement is stopped after voltage drops to below the limit value of 60 V. Time required to discharge down to 60 V then appears at the display in seconds. Voltage measurement continues until maximum allow­able discharge time has elapsed (normally 5 seconds). The results of the voltage measurement are then “frozen”, and the DATA HOLD symbol appears at the display. If the 60 V limit value is not reached before allowable discharge time has elapsed, the voltage value is “frozen” and time measurement continues until the 10 second time limit has elapsed. If voltage is still greater than 60 V after 10 seconds, the test is aborted and the instrument restarts voltage measurement.
When the display is “frozen”, voltage measurement is not started again until:
• The START key is pressed.
• The measured value is saved to memory by pressing the i/Store key.
• Voltage measurement is restarted from the menu.
• Or voltage at the test probes climbs back up to a value of greater than 60 V, or if the next measured value after a mea­surement of greater than 60 V is even higher, i.e. if a climbing tendency can be observed.
Both elapsed time and the prevailing voltage value after allowable discharge time has elapsed are saved to memory by pressing the i/Store key. If no discharge takes place, only the voltage value is saved.
If, for example, conductors are exposed when a machine is switched off – e.g. if plug connectors are disengaged – and if these are not protected against direct contact, maximum allowable discharge time is 1 second!
Select the Test
Open the Submenu
34 GMC-I Messtechnik GmbH

4.5.1 Setting Test Parameters

START
STORE
The discharge time during which the voltage value must drop to a non-hazardous value of less than 60 V can be specified as a limit value between 1.0 and 9.00 seconds. The following message appears in order to indicate that the limit has been reached: “residual voltage less than 60 V!”.

4.5.2 Starting the Test

Set Discharge Time
Press briefly: Save results Press & hold: Save results and activate the entry field:
Test duration is always set to continuous measurement in this case
because residual voltage testing is triggered automatically and voltage measurement is always active for safety reasons.
A description of the measurement with up to 15 characters can be entered to the information field at the bottom. See chapter 5.1.1 regarding entry.
For resetting parameter values to default setting, see page 16.
GMC-I Messtechnik GmbH 35

5 Processing, Reorganizing and Deleting Data

MENU
Previously stored data and data records can be processed with the selector switch in the data management position. The following functions are available:
DUT data An object number can be assigned here, and measurements can be saved with reference to the selected number. Beyond this, a description can be entered for the respective object.
Data Processing Individual data resulting from a measurement (e.g. insulation measurement) performed on a previously selected object can be displayed with this function, and subsequently deleted if de­sired.
Data Reorganization Previously entered objects can be deleted from memory with this function, and memory can be tested as well.
Clear Memory This command deletes data records previously saved to mem­ory for all objects. Full memory capacity is made available by means of this procedure.
Memory Occupancy
Current memory occupancy is continuously displayed as a bar graph for the first three menu items listed above. Depending upon the number of objects stored to memory (max. 254), up to 1,600 measurements can be saved.

5.1 Select Device under Test (DUT)

Select a Command
Submenu
Object no.
Select Number
Status: A filled file cabinet indicates that measurement data
36 GMC-I Messtechnik GmbH
have already been saved to memory for the selected object.

5.1.1 Entering Descriptions

MENU
STORE
START
MENU
– Entry using keys at the METRISO PRIME+
Select Letter, Number or Character.
Description
Move Cursor Left
Description: A description can be entered here for an object, which is displayed and subsequently printed out when the respective object is selected.
Move Cursor Right
There are five different ways to enter descriptions:
– Convenient entry with the PSI module (feature I1)
In this case, descriptions are entered using the alphanumeric keypad included with the PSI module (see operating instruc­tions for SECUTEST PSI).
Entry with the help of a barcode scanner (accessory no. B3261)
or RFID scanner (accessory no. Z751G) – Entry from a terminal – Entry with PC keyboard via the PROFI-MFII adapter
Completed entries must be acknowledged with the MENU key. The entry is then saved to memory. Alternatively, the “Store” key can be pressed at the PSI module.
Up to 250 characters can be entered. The entry line scrolls auto­matically.
A comment can be entered for each test step in the same way, immediately after the test has been performed. However, the length of these comments is limited to 15 characters.
(accessory no. Z504H)
GMC-I Messtechnik GmbH 37

5.1.2 Copying Descriptions

MENU
STORE
Select the object with the description to be copied and press
the MENU key 3 times.
Select the new object and press the MENU key.
The copied text is displayed and can be edited.

5.1.3 Deleting Descriptions

Simultaneously press the i/STORE and START keys.
The description is deleted and the cursor is sent to the first char­acter entry position in the description field.

5.2 Processing Data (checking measured values)

Measured values can be checked with this function, and individ­ual measurements can be deleted if desired.
Select a Command
Select an Object
Delete the Object “Data record deleted” appears after deletion of the respective
measurement has been started. In order to delete a data record, the i/Store key must be pressed
and held for approximately 1 second, thus avoiding inadvertent deletion. If the key is not released, all subsequent data records are then deleted sequentially at a rate of 1 record per second.
38 GMC-I Messtechnik GmbH

5.3 Data Reorganization

MENU
START
STORE
MENU
START

5.3.1 Deleting Already Printed Data

Data for individual DUTs which have already been printed out in report form, or DUTs which have been entered although no mea­sured values have been saved for them yet, can be deleted here if desired.
Select a Command
Submenu
Start Deletion
print-out is generated including all DUTs for which measured data are stored to memory.

5.3.2 Memory Test

The memory module is checked for errors with this function. Errors can be corrected in some cases. Follow the instructions which appear at the display.
Test Memory (press 3 times)
Delete the Object Security acknowledgement must be entered before deleting each
individual object. As soon as objects whose data have already been printed out in report form have been deleted, a message to this effect appears. If the START key is pressed once again, a
GMC-I Messtechnik GmbH 39

5.4 Clearing the Memory

Attention!
!
MENU
START
STORE
This command deletes data records previously saved to memory for all DUTs. Full memory capacity is made available by means of this procedure.
Data should be downloaded to a PC and saved before clearing the memory!
Select a Command
Submenu
A security acknowledgement must be entered before memory is cleared. Final deletion is initialized with the i/STORE key.
Clearing the memory entirely may takes several seconds. “Mem­ory cleared” is then displayed.
Execute the Command
40 GMC-I Messtechnik GmbH

6 Printing Test Results

MENU
START
The test instrument’s report functions can be activated with the selector switch in the printer position. The following functions are available:
Print out values at the PSI module (feature I1):
Measured values for a selected object can be printed out at the utilized printer module via the serial interface.
Download templates from a PC (see WinProfi PC software in
chapter 3.5.5):
Report layouts can be specified by the user. A template with a header, a text body and a footer is required to this end. A tem­plate created by the user at a PC can be downloaded to the test instrument via the serial interface.
Select Printer
Printer Menu
Select an Object or a Number
Start Printing *
Status: A filled file cabinet indicates that measurement data
have already been saved to memory for the selected DUT. A printer symbol appears as long as data is being transmitted to the printer.
* A print-out which has already been started can only be aborted by turning the se-
lector switch. An error message is generated if the printer does not work. Printing must be restarted in this case.
GMC-I Messtechnik GmbH 41

7 Characteristic Values

Standards DIN EN 61557-1:2007
DIN EN 61557-2:2008
VDE regulations VDE 0413-1:2007
VDE 0413-2:2008
Insulation Resistance
Display Range []
0.00 M ... 50.0 G 0.60 M ...10.0 G 100 V ...250 V
0.00 M ... 250 G 0.40 M...50.0 G > 250 V ... 1.00 kV
0.00 M ... 999 G 0.40 M...200 G > 1.00 kV ... 5.00 kV
Test duration: automatic (until measured value stabilizes),
Measuring Range []
Test Voltage Intrinsic
Uncertainity
±(7% rdg.+ 6 d)
> 10.0 G...50.0 G
±(7% rdg.+ 6 d)
±(7% rdg.+ 6 d)
> 50.0 G...250 G
±(7% rdg.+ 6 d)
±(7% rdg.+ 6 d)
> 200 G...999 G
manual (1 ... 120 s) or continuous measurement (lock function)
±(7% rdg.+ 6 d)
Measuring Uncertainty
±(10% rdg.+ 8 d)
±(10% rdg.+ 8 d)
±(10% rdg.+ 8 d)
±(10% rdg.+ 8 d)
±(10% rdg.+ 8 d)
±(10% rdg.+ 8 d)
Insulation Test Voltage
Nominal Values, Tes t Vo lta ge
100 V, 250 V, 500 V, 1.00 kV
1.50 kV, 2.00 kV, 2.50 kV 0.4 mA ± 5% rdg.
5.00 kV 0.1 mA ± 3.5% rdg.
Variable test voltage selectable in 50 V steps Short-circuit current less than 2 mA with test voltage to 1.00 kV
Variable Tes t Vo lta ge
100 V...1.00 kV 1.0 mA ± 15% rdg.
> 1.00 kV...2.50 kV 0.4 mA ± 5% rdg.
> 2.50 kV...5.00 kV 0.1 mA ± 3.5% rdg.
Nominal Current Intrinsic Uncertainty
1.0 mA 0 ... +25% rdg.
Voltage Measurement
Measuring Range Frequency
dc test voltage 50 V ... 5.00 kV
50 V ... 1.00 kV ac/dc 15 ... 500 1 M ±(2.5% rdg. + 2 d) (5 % rdg. + 5 d)
50 V ... 1.00 kV ac/dc > 500 ... 1 k 1 M ±(10 % rdg. + 2 d)
in Hz
Impedance Intrinsic
±(2.5 % rdg. + 5 d) (5 % rdg. + 5 d)
Uncertainty
Measuring Uncertainty
±(12.5% rdg. + 5 d)
Polarization Index (PI), Absorption Ratio (DAR)
t1 t2 Limit
00:00 ... 01:00 ... 99:50 min 00:00 ... 10:00 ... 99:50 min 0.10 ... 4.00 ... 9.80 min
PI
DAR
00:00 ... 00:30 ... 99:50 min 00:00 ... 01:00 ... 99:50 min 0.10 ... 1.60 ... 9.80 min
PI and DAR are calculated values. Insulation measurement specifications apply.
Frequency Measurement
Measuring Range Impedance Intrinsic
15.0 Hz 1.00 kHz 1 M(0.5% rdg. + 2 d) (1 % rdg. + 2 d)
Measured quantity voltage: 50 V ... 1 kV
Uncertainty
Measuring Uncertainty
Breakdown Voltage
Parameter Setting Range Intrinsic Uncertainty Measuring
Voltage range 100 5,000 V  (10 % rdg. + 8 d)
Rise time 5 300 s
Measuring time 1 120 s /
auto / continuous
measurement
——
42 GMC-I Messtechnik GmbH
Uncertainty
(15% rdg. + 10 d)
Capacitance Measurement
Display Range
0.00 10.0 F 0.10 5.00 F
Measuring Range
Test Voltage Intrinsic Uncertainty Measuring
100450 V (10% rdg. + 5 d) (15 % rdg. + 8 d)
5005 kV (5 % rdg. + 5 d) (10% rdg. + 8 d)
Uncertainty
Dielectric Discharge (DD)
Limit
DD 0.10 ... 2.00 ... 9.80
Reference Conditions
Ambient temperature +23 C 2K Relative humidity 40 ... 60% Measured quantity
frequency 50 Hz 10 Hz (during voltage
measurement)
Line voltage waveshape Sinusoidal, deviation between RMS and
rectified value < 1%
Power Supply
Line voltage 207 V
253 V / 49 Hz 61 Hz
or (depending on country-specific design) 108 V
132 V / 59 Hz 61 Hz
Power consumption < 18 VA Set of batteries NiMH 9.6 V, 3 Ah, charging time 6 hours Number of measurements
with nominal current per VDE 0413 700
Electrical Safety
Standards IEC 61010-1:2001
DIN EN 61010-1:2011 VDE regulations VDE 0411-1:2011 Pollution degree 2 Protection IP 40 Measuring category Insulation measurement – 5000 V DC –
no overvoltage
Voltage measurement – 1000 V CAT II,
600 V CAT I I I, 300 V CAT IV Safety class II
GMC-I Messtechnik GmbH 43
Electromagnetic Compatibility (EMC) METRISO PRIME+
Warning!
Product standards EN 61326-1:2013
Interference Emission
EN 55022 Class A
Interference Immunity Tes t Va lue
EN 61000-4-2
EN 61000-4-3 10 V/m
EN 61000-4-4
EN 61000-4-5
EN 61000-4-6 Mains connection – 3 V
EN 61000-4-11 0.5 period / 100%
Contact/atmos. – 4 kV/8 kV
Mains connection – 2 kV
Mains connection – 1 kV
This is a class A device. This device may cause radio interference in residential areas. If this is the case, the owner may be required to imple­ment appropriate corrective measures.
Ambient Conditions
Accuracy 0 C ... + 40 C Operating temperature 5 C ... + 40 C Storage temperature 20 C ... + 60 C (without battery set) Relative humidity max. 75%, no condensation allowed Elevation to 2000 m
Mechanical Design
Display Multiple display with dot matrix
128 x 64 pixels
Dimensions W x H x D:
255 mm x 133 mm x 240 mm
Weight approx. 5 kg with batteries
44 GMC-I Messtechnik GmbH

8 Data Interfaces

1: NC 2: TxD (PSI) 3: RxD (PSI) 4: NC 6 5: GND 6: NC 4 7: NC 8 8: NC 7 9: +9 V
9 876
5 4321
RxD TxD
GND
+9V +5V

8.1 RS 232 Serial Interface

The data interface socket connector (4) is used to connect the SECUTEST PSI module (feature I1).
Pins 9 and 6 may not be short jumpered to pin 5!

8.1.1 Software Analysis of Measurement Results

Test reports can be conveniently created at a PC and down­loaded to the test instrument with the included software.

8.1.2 Interface Specification and Protocol

The interface included with the METRISO PRIME+ complies with the RS 232 standard.
Technical Data: Baud rate 9600 baud, fixed Character length 8 bit Parity none Stop bits 1

8.1.3 Connector Pin Assignments

GMC-I Messtechnik GmbH 45

9 Displays and Error Messages – Causes – Remedies

Displays and Error Messages Meaning / Cause Remedy
Test Sequence
Countdown runs here until residual voltage is less than 60 V.
All-clear after an insulation test: voltage at test probes less than 25 or 60 V depending upon measuring function
The test has been passed.
The test results are not within allowable limit values.
LCD does not light up
– Mains cable not plugged in – Mains fuse is blown
Indicates type of voltage: Alternating voltage with superimposed direct voltage – direct voltage – alternating voltage
Insulation measurement: Interference voltage at the test probes, measurement aborted
Warning against high voltage, voltage at the test probe between 1,000 V and 5,000 V
Warning concerning a source of danger, voltage at the test probe between 25 V and 1,000 V
This symbol appears after the voltage measurement value has been fro­zen (see chapter 4.5 on page 34).
– Plug in the mains cable (see chapter 3.2 on page 14). – Replace the mains fuse (see chapter 10.1 on page 48).
Database Operations
– No measurement has been performed. – The measurement has already been saved to memory.
See text at the display. Press the START key to repair.
An error has occurred while saving data to memory. Save data to a PC and then clear the memory.
46 GMC-I Messtechnik GmbH
Displays and Error Messages Meaning / Cause Remedy
See text at the display. Press the START key to repair.
Memory in no longer able to save new measurement data. Save data to a PC and then clear the memory.
See text at the display. Transmit data to a PC or print them out, and then delete
No data have yet been saved to this data record.
Printing is not possible. Check connections at the printer and make sure paper is
Data are being transferred to the printer. The printer may wait until data transmission has been entirely completed before it starts printing.
A filled file cabinet indicates that measurement data have already been saved to memory for the selected DUT.
The data record has been deleted for a DUT.
The printer is not working. Check the data record.
The printer is not working. Check the connection between the printer and the
The printer is working correctly. Turn the selector switch in order to abort the print-out.
The measurement has been saved to memory.
DUTs which are no longer necessary, or clear the entire memory.
available. Check the printer for possible errors.
METRISO PRIME+. Then press the START key.
GMC-I Messtechnik GmbH 47

10 Maintenance

Attention!
!
Attention!
!
Note
Attention!
!

10.1 Replacing the Mains Fuse

Disconnect the device from the measuring circuit at all poles before opening the fuse compartment! Disconnect the device from the mains.

10.2 Testing of Rechargeable Batteries

Check the batteries for leakage or damage at short regular inter­vals, and after long periods of storage. If damage or leakage has occurred, carefully and completely clean the electrolyte from the instrument with a damp cloth, and replace the batteries with a new battery pack (accessory no. …..) before placing the instru­ment back into service.
If the battery test (see chapter 3.5.4 on page 19) indicates that backup battery voltage or rechargeable battery voltage has dropped below the minimum allowable value, recharge the battery pack or have the backup battery replaced by GMC-I Service GmbH.
Use only specified, original replacement fuses! Bypassing or repairing fuses is prohibited! If fuses with other current ratings, breaking capacities or blowing characteristics are used, the device may be damaged!
Open the fuse compartment at the inlet socket with a suitable
tool (e.g. a screwdriver).
Replace the blown fuse with a new fuse with identical specifi-
cations.
Close the fuse compartment.
48 GMC-I Messtechnik GmbH

10.3 Housing and Test Probes

No special maintenance is required. Keep outside surfaces clean and dry. Use a slightly dampened cloth for cleaning. Avoid the use of solvents, cleansers and abrasives.
Measurements may not be performed under moist ambient con­ditions, where condensation has occurred or in explosive atmo­spheres.
Prior to lengthy periods of rest (e. g. holiday), we recom­mend removing the (rechargeable) batteries. This helps to prevent excessive depletion or leakage of batteries, which, under unfavourable circumstances, may cause damage to the instrument.
No condensation may be permitted to occur at the test instrument, the test cables or the device under test, because high-voltage may otherwise cause leakage cur­rent at the surfaces. Insulated components may also conduct high-voltage in this case.

10.4 Measurement Cables

Attention!
!
Note
Inspect the measurement cables for mechanical damage at regu­lar intervals.
Even if only minimal damage is discovered at the test ca­bles, it is advisable to send them immediately to GMC-I Service GmbH.

10.5 Software

Internal test instrument software can be updated with the help of a PC and an interface cable for the RS 232 interface. The soft­ware is downloaded to the flash EPROM in the METRISO PRIME+.
The data file with the desired software version is transmitted to the test instrument via the serial interface with the help of the update function included with WinProfi software. Previously installed software is overwritten in the process.
Downloading Procedure
Establish a connection between the PC and the
METRISO PRIME+.
Switch the PC and the test instrument on.
Continue as described in chapter 3.5.5 on page 20.
After updating the software, reinstall the desired lan­guage to the test instrument as well, even if the language will not be changed. This assures that all of the additional functions included in the update are correctly displayed.
GMC-I Messtechnik GmbH 49

10.6 Recalibration

Pb Cd Hg
The respective measuring task and the stress to which your mea­suring instrument is subjected affect the ageing of the compo­nents and may result in deviations from the guaranteed accuracy.
If high measuring accuracy is required and the instrument is fre­quently used in field applications, combined with transport stress and great temperature fluctuations, we recommend a relatively short calibration interval of 1 year. If your measuring instrument is mainly used in the laboratory and indoors without being exposed to any major climatic or mechanical stress, a calibration interval of 2-3 years is usually sufficient.
During recalibration* in an accredited calibration laboratory (DIN EN ISO/IEC 17025) the deviations of your instrument in rela­tion to traceable standards are measured and documented. The deviations determined in the process are used for correction of the readings during subsequent application.
We are pleased to perform DAkkS or factory calibrations for you in our calibration laboratory. Please visit our website at www.gossenmetrawatt.com ( Company DAkkS Calibration Center or FAQs Calibration questions and answers).
By having your measuring instrument calibrated regularly, you ful­fill the requirements of a quality management system per DINENISO9001.
* Verification of specifications or adjustment services are not part of the calibration.
For products from our factory, however, any necessary adjustment is frequently performed and the observance of the relevant specification is confirmed.

10.7 Device Return and Environmentally Compatible Disposal

The instrument is a category 9 product (monitoring and control instrument) in accordance with ElektroG (German Electrical and Electronic Device Law). This device is subject to the RoHS direc­tive. Furthermore, we make reference to the fact that the current status in this regard can be accessed on the Internet at www.gossenmetrawatt.com by entering the search term WEEE.
We identify our electrical and electronic devices in accor­dance with WEEE 2012/19/EU and ElektroG with the symbol shown to the right per DIN EN 50419.
These devices may not be disposed of with the trash. Please con­tact our service department regarding the return of old devices.
If you use batteries or rechargeable batteries in your instrument or accessories which no longer function properly, they must be duly disposed of in compliance with the applicable national regula­tions. Batteries or rechargeable batteries may contain harmful sub­stances or heavy metal such as lead (PB), cadmium (CD) or mer­cury (Hg).
They symbol shown to the right indicates that batteries or rechargeable batteries may not be disposed of with the trash, but must be delivered to collection points specially provided for this purpose.
50 GMC-I Messtechnik GmbH

11 Appendix

11.1 Glossary

Abbreviation
DAR
DD Dielectric Discharge
R
t/250V Dwell Time per Step
PI Polarization Index:
I
MAX
I
T
R
ins
Limit R
T
R
T
D
U
AC.MAX.
U
brk
U
ins
U
(ins) end
U
meas
U
nom
U
T
U
STEP
U
test
U
var
Meaning
Absorption Ratio: Ratio between insulation resistance values measured after 30 and 60 seconds
Maximum allowable statistical deviation from the measured mean value
Lim
Ratio between insulation resistance values measured after 1 and 10 minutes
Max. allowable current before high-voltage is switched off
Interrupting current for high-voltage test
Insulation Resistance
Limit value for insulation resistance
ins
Rise time: time during which test voltage climbs to U
Test duration at maximum test voltage U
Maximum test voltage for high-voltage testing
Breakdown Voltage
Tes t Vo lt age
Ramp Function Upper Limit
Measuring Voltage
Nominal Test Voltage
Voltage value before exceeding interrupting current during high-voltage testing
Test voltage as ramp sequence
Tes t Vo lt age
Variable Test Voltage
(not including rise time TR)
AC.MAX.
AC.MAX .
11.2 Minimum Display Values in Consideration of
Measuring Error
Table for determining minimal display values for insulation resis­tance in consideration of the instrument’s measuring error:
Limit Value Minimum Display
Value
0.10 M 0.12 M 100 M 118 M
0.20 M 0.23 M 200 M 228 M
0.50 M 0.56 M 500 M 558 M
1.00 M 1.18 M 1.00 G 1.18 G
2.00 M 2.28 M 2.00 G 2.28 G
5.00 M 5.58 M 5.00 G 5.58 G
10.0 M 11.8 M 10.0 G 11.8 G
20.0 M 22.8 M
50.0 M 55.8 M
Limit Value Minimum Display
Valu e
GMC-I Messtechnik GmbH 51

11.3 Voltage at Device Under Test During Insulation Resistance Test

100
U/V
R
x
/k
100
80
60
40
20
0
U
N
= 100 V
0
100
200
300
400
500
500
U
N
= 500 V
U/V
R
x
/k
0
200
400
600
800
1000
1
U
N
= 1000 V
U/V
R
x
/M
0
500
1000
1500
2000
2400
3
U
N
= 2400 V
U/V
R
x
/M
1
0
1000
2000
3000
4000
5000
5
U
N
= 5000 V
U/V
R
x
/M
10 2031
2400
3200
Test voltage U at the device under test depending upon its resistance R
5000 V:
at nominal voltage 100, 500, 1000, 2400 and
x
52 GMC-I Messtechnik GmbH

11.4 Index

B
Beeper
Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
D
Data management
Data
Deleting . . . . . . . . . . . . . . . . . . . . . . . 39
Processing . . . . . . . . . . . . . . . . . . . . 38
Description
Copying . . . . . . . . . . . . . . . . . . . . . . . 38
Deleting . . . . . . . . . . . . . . . . . . . . . . . 38
Entry . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Entry options . . . . . . . . . . . . . . . . . . . 37
Display messages . . . . . . . . . . . . . . . . . . . 46
Memory
Deleting . . . . . . . . . . . . . . . . . . . . . . . 40
Occupancy . . . . . . . . . . . . . . . . . . . . 36
Testing . . . . . . . . . . . . . . . . . . . . . . . . 39
Printing test results . . . . . . . . . . . . . . . . . . 41
Selecting device under test . . . . . . . . . . . 36
Discharge
Automatic after insulation test . . . . . . . . . 23
Dielectric during capacitance
measurement . . . . . . . . . . . . . 32
E
ETC
Transmission and print-out of
report data . . . . . . . . . . . . . . . . 22
F
Fuses
Replacement . . . . . . . . . . . . . . . . . . . . . . . 48
I
Interference voltage
during insulation test . . . . . . . . . . . . . . . . . 23
M
Measuring of
Absorption index . . . . . . . . . . . . . . . . . . . . 28
Breakdown voltage . . . . . . . . . . . . . . . . . . 30
Capacitance . . . . . . . . . . . . . . . . . . . . . . . . 32
High resistances . . . . . . . . . . . . . . . . . . . . 27
Polarization index . . . . . . . . . . . . . . . . . . . . 28
Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
P
Product Support Hotline . . . . . . . . . . . . . . . . . 55
R
Residual voltage
Determining the value . . . . . . . . . . . . . . . . 34
Display of discharge time . . . . . . . . . . . . . 34
S
Safety measures
Control circuits . . . . . . . . . . . . . . . . . . . . . .10
Frequency Converters . . . . . . . . . . . . . . . .10
Neutral conductor . . . . . . . . . . . . . . . . . . .10
PELV circuits . . . . . . . . . . . . . . . . . . . . . . . . 10
Persons . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
TN systems . . . . . . . . . . . . . . . . . . . . . . . . .10
Statistical analysis
during insulation measurement . . . . . . . .26
Storage batteries
Display of measuring voltage . . . . . . . . . . 19
Display of remaining capacity . . . . . . . . . 15
Operation with battery pack . . . . . . . . . . . 12
Recharging during mains operation . . . . 15
T
Test voltage
during HV test
on device under test . . . . . . . . . . . .52
during insulation test
Fixed steps . . . . . . . . . . . . . . . . . . . .25
on device under test . . . . . . . . . . . .52
variable/50 V steps . . . . . . . . . . . . . . 25
during insulation test as a sequence
of steps . . . . . . . . . . . . . . . . . . .25
W
WinProfi
Installation and program start . . . . . . . . . 20
GMC-I Messtechnik GmbH 53
12 Repair and Replacement Parts Service,
Calibration Center* and Rental Instrument Service
When you need service, please contact:
GMC-I Service GmbH Service Center Beuthener Straße 41 90471 Nürnberg, Germany Phone: +49 911 817718-0 Fax: +49 911 817718-253 e-mail: service@gossenmetrawatt.com www.gmci-service.com
This address is only valid in Germany. Please contact our representatives or subsidiaries for service in other countries.
* DAkkS Calibration Laboratory for Measured Electrical Quantities:
D-K-15080-01-01 accredited as per DIN EN ISO/IEC 17025
Accredited quantities: direct voltage, direct current value, direct current resistance, alternating voltage, alternating current value, alternating current active power, alternating current apparent power, DC power, capacitance, frequency and temperature
Competent Partner
GMC-I Messtechnik GmbH is certified in accordance with DIN EN ISO 9001.
Our DAkkS calibration laboratory is accredited by the Deutsche Akkreditierungsstelle GmbH (National accreditation body for the Federal Republic of Germany) in accordance with DIN EN ISO/ IEC 17025 under registration number D-K-15080-01-01.
We offer a complete range of expertise in the field of metrology: from test reports and proprietary calibration certificates right on up to DAkkS calibration certificates.
Our spectrum of offerings is rounded out with free test equipment management.
An on-site DAkkS calibration station is an integral part of our service department. If errors are discovered during calibration, our spe­cialized personnel are capable of completing repairs using original replacement parts. As a full service calibration laboratory, we can calibrate instru­ments from other manufacturers as well.
54 GMC-I Messtechnik GmbH

13 Product Support

When you need service, please contact:
GMC-I Messtechnik GmbH
Product Support Hotline
Phone: +49 911 8602-0 Fax: +49 911 8602-709 e-mail support@gossenmetrawatt.com
GMC-I Messtechnik GmbH 55
Edited in Germany Subject to change without notice A pdf version is available on the internet.
GMC-I Messtechnik GmbH Südwestpark 15 90449 Nürnberg •
Germany
Phone +49 911 8602-111 Fax +49 911 8602-777 E-Mail info@gossenmetrawatt.com www.gossenmetrawatt.com
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