Servicepartner für Kalibrierungen, Reparaturen, Ersatzteile, Mietgeräte | GOSSEN METRAWATT GMC-I Service GmbH
GOSSEN METRAWATT, GMC-Instruments
myGMC | GOSSEN METRAWATT | CAMILLE BAUER
Instruction Manual for GOSSEN METRAWATT models including: METRAOHM 10, METRAOHM 10 Electrical Isolation Tester, METRAOHM 10, Electrical Isolation Tester, Isolation Tester, Tester
Gossen Metrawatt METRAOHM 10 merilnik nizke upornosti CAT II 600 V LCD - MegaShop spletna trgovina - Megashop.si
Gossen Metrawatt METRAOHM 10 niskoomski mjerač CAT II 600 V LCD - MegaShop spletna trgovina - Megashop.hr
Buy Gossen Metrawatt METRAOHM 10 Electrical isolation tester CAT II 600 V LCD | Conrad Electronic
File Info : application/pdf, 28 Pages, 2.36MB
DocumentDocumentOperating Instructions
METRAOHM 10
Low-Impedance Measuring Instrument
3-447-118-03 1/2.24
METRAOHM 10
Gossen Metrawatt GmbH
Content
1 Safety Instructions ..................................................................................................................... 1
2 Applications ............................................................................................................................... 2
2.1 Intended Use / Use for Intended Purpose ............................................................................................................. 2 2.2 Use for Other than Intended Purpose .................................................................................................................... 2 2.3 Liability and Guarantee.......................................................................................................................................... 2 2.4 Opening the Instrument / Repairs.......................................................................................................................... 2
3 Documentation........................................................................................................................... 3
3.1 Identifiers .............................................................................................................................................................. 3
4 Getting Started........................................................................................................................... 3
5 The Instrument ........................................................................................................................... 4
5.1 Scope of Delivery .................................................................................................................................................. 4 5.2 Instrument Overview ............................................................................................................................................. 4 5.3 Relevant Standards............................................................................................................................................... 6 5.4 Technical Data ...................................................................................................................................................... 7 5.5 Measurement Specifications ................................................................................................................................. 7
6 Menu and Functions .................................................................................................................. 9
6.1 User Interface........................................................................................................................................................ 9 6.2 Navigation........................................................................................................................................................... 10 6.3 Measurement Settings ........................................................................................................................................ 10 6.4 Setup Menu ........................................................................................................................................................ 11
7 Installation ................................................................................................................................ 12
7.1 Unpacking the Instrument ................................................................................................................................... 12 7.2 Power Supply ..................................................................................................................................................... 12
8 Operation.................................................................................................................................. 14
8.1 Switching on/off .................................................................................................................................................. 14 8.2 Performing RLO 200 mA Measurement................................................................................................................ 14 8.3 Performing RLO 10A Limit Measurement ............................................................................................................. 16 8.4 Accessing the Help menu ................................................................................................................................... 19 8.5 Saving Measurement Results .............................................................................................................................. 19 8.6 Browsing Measurement Results .......................................................................................................................... 19 8.7 Saving Measurement Results to a PC ................................................................................................................. 19 8.8 Delete Measurement Results from the Memory ................................................................................................... 21 8.9 Reading Test Results on a PC............................................................................................................................. 21
9 Maintenance............................................................................................................................. 22
9.1 Cleaning.............................................................................................................................................................. 22 9.2 Troubleshooting .................................................................................................................................................. 22 9.3 Fuse Replacement .............................................................................................................................................. 22 9.4 Repair ................................................................................................................................................................. 22 9.5 Calibration........................................................................................................................................................... 22
10 Contact, Support and Service ................................................................................................. 24
11 CE Declaration ......................................................................................................................... 25
12 Disposal and Environmental Protection ................................................................................. 25
Gossen Metrawatt GmbH
METRAOHM 10
1 Safety Instructions
General · Carefully and completely read and adhere to these operating instructions.
The document can be found at http://www.gossenmetrawatt.com. Retain this document for future reference. · Use only the specified accessories (included in delivery or listed as optional) with the instrument. · Carefully and completely read and adhere to the product documentation of the optional accessories. Retain these doc-
uments for future reference. · Observe and comply with all safety regulations which are applicable for your work environment.
Handling · Use the instrument in undamaged condition only.
Inspect the instrument before use. Pay particular attention to damage, interrupted insulation or kinked cables. Damaged components must be replaced immediately. · Use the accessories and all cables in undamaged condition only. Inspect accessories and all cables before use. Pay particular attention to damage, interrupted insulation or kinked cables. · If the instrument or an accessory doesn't function flawlessly, remove it from operation and secure it against inadvertent use. · If the instrument or accessory is damaged during use, e.g. through falling, remove it from operation and secure it against inadvertent use. · If there are any signs of interior damage to the instrument or accessories (e.g. loose parts in the housing), permanently remove the instrument/accessories from operation and secure them against inadvertent use.
Operating conditions · Do not use the instrument after long periods of storage under unfavorable conditions (e.g. humidity, dust or extreme
temperature). · Do not use the instrument after extraordinary stressing due to transport. · The instrument must not be exposed to direct sunlight. · Only use the instrument and the accessories in compliance with the specified technical data and under the specified
conditions (ambient conditions, IP protection class, measuring category, etc.). · Do not use the instrument in potentially explosive atmospheres. · The instrument and the included accessories may only be used for the tests/measurements described in the instru-
ment`s documentation.
Electricity · Do not use the instrument if the battery/fuse compartment cover has been removed.
Otherwise you risk touching dangerous voltages. · Use batteries in undamaged condition only. Risk of explosion and fire in the case of damaged batteries!
Inspect the batteries before use. Pay particular attention to leaky and damaged batteries.
Fuses · The instrument may only be used as long as the fuses are in flawless condition. Defective fuses must be replaced. Fuses
may only be replaced by our repair service department. · Never bridge the fuses. Never put the fuses out of operation.
Data Security · Always create a backup copy of your measurement/test data.
1
METRAOHM 10
Gossen Metrawatt GmbH
2 Applications
Please read this important information!
2.1 Intended Use / Use for Intended Purpose
METRAOHM 10 is a low-impedance measuring instrument for protective conductors and equipotential bonding conductors. It is designed to perform the following different measurement types:
RLO four-wire measurement with current 10 AAC RLO two-wire measurement with current 200 mADC Contact resistances on lightning protection and grounding systems in accordance with DIN 18014 Low-resistance continuity on machines in accordance with EN 60204-1 (VDE 0113-1) Safety of the operator, as well as that of the device, is only assured when it's used for its intended purpose.
2.2 Use for Other than Intended Purpose
Using the instrument for any purposes other than those described in these instrument operating instructions is contrary to use for intended purpose. Use for other than intended purpose may lead to unpredictable damage.
2.3 Liability and Guarantee
Using the instrument for any purposes other than those described in these instrument operating instructions is contrary to use for intended purpose. Use for Other than Intended Purpose may lead to unpredictable damage!
2.4 Opening the Instrument / Repairs
The instrument may only be opened by authorized, trained personnel in order to ensure flawless, safe operation and to assure that the guarantee isn't rendered null and void. Even original replacement parts may only be installed by authorized, trained personnel. Unauthorized modification of the instrument is prohibited. If it can be ascertained that the instrument has been opened by unauthorized personnel, no guarantee claims can be honored by the manufacturer with regard to personal safety, measuring accuracy, compliance with applicable safety measures or any consequential damages. If the guarantee seal is damaged or removed, all guarantee claims are rendered null and void.
2
Gossen Metrawatt GmbH
3 Documentation
3.1 Identifiers
The following identifiers are used in this documentation:
Identifier
Meaning
Safety information that must be complied with
! Attention!
Warning
Note!
Important
Important information which must be taken into consideration and complied with
Prerequisite 1. Procedural step Result · Enumeration Enumeration Fig. 1: Caption Table 1: Footnote
A condition etc. which must be fulfilled before a given action can be taken Steps of a procedure which must be completed in the specified order Result of a procedural step Bullet lists
Description of the content of a figure Description of the content of a table Comment
METRAOHM 10
4 Getting Started
1. Read and adhere to the product documentation. In particular observe all safety information in the documentation, on the tester and on the packaging. "Safety Instructions" 1 "Applications" 2 "Documentation" 3
2. Familiarize yourself with the tester. "The Instrument" 4 "Menu and Functions" 9
3. Install the tester "Installation" 12
4. Conduct the measurements "Operation" 14
3
METRAOHM 10
5 The Instrument
5.1 Scope of Delivery
Please check for completeness. 1 METRAOHM 10 (M630K) 1 AC mains power supply cable 1 USB type A to type B cable 1 Two-wire measurement standard test leads with alligator clips 1 Four-wire Kelvin test leads with alligator clips 1 Kelvin clip test / 25 W (Z630K) 1 Carrying case with carrying strap and strap on the instrument 1 Test report 1 Calibration certificate
5.2 Instrument Overview
5.2.1 Front
Gossen Metrawatt GmbH
SAVE
ZERO
HELP
BRIGHTNESS SETTINGS
ESC
Up Left START/ENTER
Down Right Fig. 2: Front Panel
Colour display
Function selection
ON/OFF
4
Gossen Metrawatt GmbH 5.2.2 Back
Fixing screws
METRAOHM 10
Information label
Fig. 3: Back of Instrument 5.2.3 Back, open
Battery tray for 6 batteries 1.5 V AA
Battery/fuse compartment cover
Fuse F3 (mains) (315 mA / 250 V, 5 mm × 20 mm)
Fuse F1 (10 A measurement) (10 A / 600 V, 6.3 mm × 32 mm)
Fuse F2 (200 mA measurement) (400 mA / 600 V, 6.3 mm × 32 mm)
Fig. 4: Back of Instrument, open
5
METRAOHM 10 5.2.4 Top
USB port
Gossen Metrawatt GmbH
Mains socket
Test lead sockets
Fig. 5: Top of Instrument
5.2.5 Symbols on the Instrument and the Included Accessories
Warning concerning a point of danger
!
(attention, observe documentation!)
Double insulation (protection category II)
European conformity marking The tester may not be disposed of with household trash "Disposal and Environmental Protection" 25.
5.3 Relevant Standards
The tester has been manufactured and tested in accordance with the following safety regulations:
DIN EN 61010-1 IEC 61010-1
Safety requirements for electrical equipment for measurement, control and laboratory use Part 1: General requirements
IEC/EN 61557-1
Electrical safety in low voltage distribution systems up to 1000 VAC and 1500 VDC Equipment for testing, measuring or monitoring of protective measures
Part 1: General requirements
IEC/EN 61557-4
Electrical safety in low voltage distribution systems up to 1000 VAC and 1500 VDC Equipment for testing, measuring or monitoring of protective measures
Part 4: Resistance of earth connection and equipotential bonding
DIN EN IEC 61326-1 Electrical equipment for measurement, control and laboratory use - EMC requirements Part 1: General requirements
DIN EN 60529 IEC 60529
Test instruments and test procedures Degrees of protection provided by enclosures (IP code)
6
Gossen Metrawatt GmbH
METRAOHM 10
5.4 Technical Data
Power Supply
Battery
Mains power supply Operating temperature:
6 × LR6 AA alkaline battery Voltage: 1.5 V
230 VAC 50 Hz +0 ... +40 °C
Ambient Conditions
Storage temperature:
-10 ... +70 °C (without batteries)
Relative atmospheric humidity: Max. 80%, no condensation allowed
Elevation:
Max. 2000 m
Measuring category:
Cat II / 600 V
Pollution degree:
2
Electrical Safety
Protection category: Fuses:
Cat II
F1 (10 A measurement): 10 A / 600 V, 6.3 mm × 32 mm F2 (200 mA measurement): 400 mA / 600 V, 6.3 mm × 32 mm F3 (mains): 315 mA / 250 V, 5 mm × 20 mm
Mechanical Design
Protection: Housing (W × H × D):
Housing: IP40 per DIN EN 60529 / IEC 60529
(protection against ingress of solid foreign objects: 1.0 mm
protection against ingress of water: not protected)
approx. 25 cm × 10.7 cm × 13.5 cm
Weight:
approx. 1.75 kg (with batteries, without cables)
Display:
TFT LCD display, 480 × 320, 3.5"
Data Interfaces
COM-Port
USB type B
5.5 Measurement Specifications
Measuring range
Resolution
Accuracy Test current Test current resolution Open circuit voltage Measurement method Standard
RLO 200 mA (Auto mode) 0.01 ... 9.99 10.0 ... 99.9 0.01 0.1 ± (2% m.v. + 2 dgt) > 200 mADC for R 5 (including compensation value) 1 mA 4 V V0 12 VDC 2 wires IEC/EN 61557-4 (for R > 0.10 )
Measuring range
Resolution
Accuracy Test current Test current resolution Open circuit voltage Measurement method Continuous mode Duration of continuous test
RLO 200 mA (Continuous mode) 0.01 ... 9.99 10.0 ... 99.9 0.01 0.1 ± (2% m.v. + 2 dgt) > 200 mADC for R 5 (including compensation value) 1 mA 4 V V0 12 VDC 2 wires Cont+ (R+) and Cont- (R-) 1 15 s
7
METRAOHM 10
Standard
Measuring range Resolution Accuracy Test current Test current resolution Open circuit voltage Measurement method Power supply Standard
Measuring range Resolution Accuracy Test current Test current resolution Open circuit voltage Measurement method Selectable section
Length measuring range Power supply Standard
IEC/EN 61557-4 (for R > 0.10 )
Gossen Metrawatt GmbH
RLO 10 A Limit MAN 0.001 ... 0.999 0.001 ± (1% m.v. + 2 dgt) > 10 AAC for R 0.45 0.1 A V0 12 VAC 4 wires 230 V AC 50 Hz IEC/EN 61439-1
RLO 10 A Limit AUTO 0.001 ... 0.999 0.001 ± (1% m.v. + 2 dgt) > 10 AAC for R 0.45 0.1 A V0 12 VAC 4 wires 0.5, 1.0, 1.5, 2.5, 4.0, 6.0, 10 and 16 mm2 (p[Cu] = 0.017 mm2/m) 0.1 m ... 999.9 m 230 VAC 50 Hz IEC/EN 60204-1
8
Gossen Metrawatt GmbH
6 Menu and Functions
The instrument is operated via function keys on the front panel. The settings and values are displayed on the display.
6.1 User Interface
6.1.1 Display Selected
measurement
Measurement mode
Selected threshold value
METRAOHM 10 Battery life indicator Measurement result
6.1.2 Function keys Key
Description ON/OFF Short keystroke: Instrument on Long keystroke: Instrument off Function selection Switch beween RLO 200 mA, RLO 10 A Limit MAN or RLO 10 A Limit AUTO measurement modes BRIGHTNESS Turn on or off the display backlight
SETTINGS Access the setup menu
ESC Exit a menu and return to the previous level
SAVE Short keystroke: Saves the result of the measurement Long keystroke: Displays a list of all recorded measurements
ZERO Start compensation for the test leads resistance in two-wire resistance measurements HELP Access the help menu
9
METRAOHM 10 Key
6.1.3 Indicators Indicator
Description Up / Down Select the options mode, limit or measurement time Scroll upwards or downwards in a list Left / Right Select measurement modes Increase or decrease a values START/ENTER Start the measurement Enter a submenu Confirm an action
Description Battery life indicator Battery completely charged
Gossen Metrawatt GmbH
Battery partially charged
Battery empty
OK The measured resistance ranges below the limit
NOT OK The measured resistance exceeds the limit
6.2 Navigation
The menu can be navigated via the function keys. · Use Up / Down to scroll upwards or downwards in a list. · Use START/ENTER to enter the selected submenu. · Use Left / Right to scroll forward or backward in the list of options or to increase or decrease a value. · Use START/ENTER to confirm an action. · Use ESC to abort an action or return to the previous level.
6.3 Measurement Settings
Parameters Description
Mode Limit
Sets the measurement mode for RLO 200 mA: Auto, Cont+ or ContSets the pass/fail threshold: 0.01 to 99.9
If the limit value is exceeded, the instrument emits an acoustical alarm and a warning is displayed.
In continuous measurement modes
Time
Sets the duration of a continuous measurement test: 1 to 15 seconds
In operation mode RLO 10 A Limit AUTO
Lenght
Sets the length of the protective conductor under test in meters: 0.1 to 999.9 m
Section
Section is the cross-section surface of the protective conductor under test: 0.5 mm2, 1.0 mm2, 1.5 mm2, 2.5 mm2, 4.0 mm2, 6.0 mm2, 10 mm2 and 16 mm2
10
Gossen Metrawatt GmbH
METRAOHM 10
6.4 Setup Menu
The setup menu offers user configurable options. The setup menu can be accessed at any time by pressing SETTINGS.
Fig. 6: Setup Menu
Submenu
Description
Date
Sets the date
Time
Sets the time
Brightness
Increases or decreases the brightness from 0 to 100 % in steps of 10 %
System
Buzzer
Turns the buzzer ON or OFF
Auto power off
Sets the time after which the device automatically turns off: 2 min, 5 min, 10 min
Compensation
Activates (ON) or deactivates (OFF) compensation
Default settings
Restores the default settings
Firmware
Displays the firmware version
Info
Batteries
Displays the battery voltage
RTC battery
Displays the RTC battery voltage
Language
English German
Changes the language of the user interface
Memory
Memory status Clear memory
Shows the memory status Deletes all records from the memory
Check Kelvin test Check Kelvin test leads
leads
before first 10A measu-
rement
Check Kelvin test leads now
11
METRAOHM 10
6.4.1 Setting the Date
1. Press the key SETTINGS. 2. Use Up / Down to select the submenu System. 3. Press START/ENTER to enter the submenu System. 4. Use Up / Down to select Date. 5. Press START/ENTER to enter the date settings. 6. Use Up / Down to select the day. 7. Use Left / Right to switch to the month. 8. Use Up / Down to select the month. 9. Use Left / Right to switch to the year. 10.Use Up / Down to select the year. 11.Press START/ENTER to confirm the set date. The date is set.
6.4.2 Setting the Time
1. Press the key SETTINGS. 2. Use Up / Down to select the submenu System. 3. Press START/ENTER to enter the submenu System. 4. Use Up / Down to select Time. 5. Press START/ENTER to enter the time settings. 6. Use Up / Down to select the hour. 7. Use Left / Right to switch to the minutes. 8. Use Up / Down to select the minutes. 9. Use Left / Right to switch to the seconds. 10.Use Up / Down to select the seconds. 11.Press START/ENTER to confirm the set time. The time is set.
Gossen Metrawatt GmbH
7 Installation
7.1 Unpacking the Instrument
1. Carefully remove instrument and accessories from the packaging. 2. Check delivery for completeness and possible damage. 3. In case of detected damages, hidden defects and short deliveries, document type and scope and contact the manufac-
turer or supplier immediately. 4. Keep packing material for further transport.
7.2 Power Supply
The instrument is powered by battery and via AC power supply cable. 10 A measurement: The instrument is supplied from via AC power supply plus battery. 200 mA measurement: The instrument is supplied by battery only.
7.2.1 Establishing Power Supply via AC power supply cable
1. Connect the plug of the power supply cable to the mains socket of the instrument. 2. Connect the other side of the power supply cable to the AC power socket.
7.2.2 Establishing Power Supply by Batteries Required Materials: · a Phillips screwdriver for opening the battery/fuse compartment · batteries which comply with the specifications in the technical data (7) respectively the labeling on the instrument
! Attention!
When connected to an installation, the instruments battery/fuse compartment can contain hazardous voltage inside! When replacing battery cells or before opening the battery/fuse compartment cover, disconnect any measuring accessory connected to the instrument and turn off the instrument.
12
Gossen Metrawatt GmbH
METRAOHM 10
1. Remove the screws of the battery/fuse compartment cover on the back side of the instrument. 2. Remove the battery/fuse compartment cover. 3. Insert 6 1.5 V AA batteries into the battery tray. Ensure the correct polarity. 4. Place the battery/fuse compartment cover onto the battery tray. 5. Fix the screws of the battery/fuse compartment cover.
Note!
If the instrument is not to be used for a long period of time, remove all batteries from the battery/fuse compartment.
13
METRAOHM 10
Gossen Metrawatt GmbH
8 Operation
8.1 Switching on/off
8.1.1 Switching on the Instrument
1. Briefly press the key ON/OFF. The firmware version is displayed on the screen for a few seconds. Afterwards, the last set mode is displayed on the
screen. The instrument is ready for operation.
8.1.2 Switching off the Instrument
1. Press the key ON/OFF for a few seconds. The instrument is switched off.
8.2 Performing RLO 200 mA Measurement
8.2.1 Compensation of Test Leads Before carrying out a RLO 200 mA measurement it is necessary to perform a test leads compensation. 1. Briefly press the key ON/OFF to switch on the instrument. 2. Press FUNC and select RLO 200mA. 3. Plug in the two test leads to the test lead sockets I+ and U+ on the
top of the instrument.
4. Connect the test probes (alligator clips) to each other. 5. Press the key ZERO.
The compensation start screen is displayed. 6. Press the key START/ENTER. Compensation started! is displayed on the screen.
The compensation is carried out. When the compensation has failed, Compensation failed! is displayed on the screen. When the compensation is completed successfully, Compensation successful! is displayed on the screen. Once performed successfully, compensation will be valid until the device is powered off.
Note!
Compensation fails if the measured resistance of the test leads is too high (> 5 ).
14
Gossen Metrawatt GmbH
8.2.2 Performing RLO Measurement RLO 200 mA in Auto Mode Compensation has been performed successfully.
1. Connect the test probes (alligator clips) to the DUT. 2. Press the keys Up or Down to select Auto mode. 3. Press the keys Left or Right to select the limit value.
If the limit value is exceeded, the instrument emits an acoustical alarm and a warning is displayed. 4. Press the key START/ENTER. An RLO +/ test is carried out. The result of the measurement and the information about the applied test current is displayed on the screen.
METRAOHM 10
8.2.3 Performing RLO Measurement RLO 200 mA in Continuous Plus Mode Compensation has been performed successfully.
1. Connect the test probes (alligator clips) to the DUT. 2. Press the keys Up or Down to select Cont+ mode. 3. Press the keys Left or Right to select the limit value.
If the limit value is exceeded, the instrument emits an acoustical alarm and a warning is displayed. 4. Press the keys Left or Right to select the time of duration of the measurement. 5. Press the key START/ENTER. An RLO + test is carried out. The result of the measurement, the information about the applied test current, and the continuous measurement timer are displayed on the screen. When the countdown of the continuous measurement timer is complete, the maximum RLO + value is displayed.
8.2.4 Performing RLO Measurement RLO 200 mA in Continuous Minus Mode Compensation has been performed successfully.
1. Connect the test probes (alligator clips) to the DUT. 2. Press the keys Up or Down to select Cont- mode. 3. Press the keys Left or Right to select the limit value.
If the limit value is exceeded, the instrument emits an acoustical alarm and a warning is displayed. 4. Press the keys Left or Right to select the time of duration of the measurement. 5. Press the key START/ENTER. An RLO test is carried out. The result of the measurement, the information about the applied test current, and the continuous measurement timer are displayed on the screen. When the countdown of the continuous measurement timer is complete, the maximum RLO value is displayed.
15
METRAOHM 10
Gossen Metrawatt GmbH
8.3 Performing RLO 10A Limit Measurement
The RLO 10A Limit measurement is a four-wire (Kelvin method) resistance measurement in the range from 0.001 to 0.999 . In order to provide a 10 A testing current, the instrument must be additionally powered from the mains power supply.
METRAOHM 10 supports two RLO 10A Limit operation modes: RLO 10A Limit MAN and RLO 10A Limit AUTO.
8.3.1 Checking Kelvin test leads
Before performing an RLO 10A Limit measurement, the Kelvin test leads must be checked.
Activate or deactivate the Kelvin test leads check
1. Press the key SETTINGS to enter the setup menu. 2. Press Down to select Check Kelvin test leads. 3. Press the key START/ENTER. The settings for the Kelvin text leads check are displayed. 4. Select Check Kelvin test leads before first 10A measurement > ON. The Kelvin test leads check is activated.
The message Connect 1 test Resistor and press START button to check Kelvin test leads is displayed when starting the instrument. 5. Select Check Kelvin test leads before first 10A measurement > OFF. The Kelvin test leads check is deactivated. The message Connect 1 test Resistor and press START button to check Kelvin test leads is not displayed when starting the instrument.
Make connections for Kelvin test leads check
1. Connect the first Kelvin test lead to the U+ and I+ sockets. 2. Connect the second Kelvin test lead to the U- and I- sockets. 3. Connect the Kelvin test leads on the left and right to the 1 test
resistor supplied. 4. Connect the power supply via the mains cable.
Start Kelvin test leads check manually The Kelvin test leads check is not activated or has been skipped. The connections for Kelvin test leads check have been made. The power supply has been established. 5. Press the key SETTINGS to enter the setup menu. 6. Press Down to select Check Kelvin test leads. 7. Press the key START/ENTER. 8. Press Down to select Check Kelvin test leads now. 9. Press the key START/ENTER. The message Connect 1 test Resistor and press START button to check
Kelvin test leads is displayed. 10.Press the key START/ENTER. 11.The Kelvin test leads check is carried out. The result of the Kelvin test leads check is displayed. 12.If the Kelvin test leads check fails, correct the reported error. 13.Repeat the Kelvin test leads check, until the check result Kelvin test
leads check pass is displayed.
Perform Kelvin test leads check on instrument startup The Kelvin test leads check is activated. The connections for Kelvin test leads check have been made. The power supply has been established. The message Connect 1 test Resistor and press START button to check
Kelvin test leads is displayed.
1. Press the key START/ENTER. 2. The Kelvin test leads check is carried out.
16
Gossen Metrawatt GmbH
The result of the Kelvin test leads check is displayed. 3. If the Kelvin test leads check fails, correct the reported error. 4. Repeat the Kelvin test leads check, until the check result Kelvin test
leads check pass is displayed.
METRAOHM 10
Results of Kelvin Test Leads Check Test result messages Kelvin test leads check pass Check cable connection at I+ and I- sockets Check cable connection at U- socket Check cable connection at U+ sockets Check 1 test Resistor
Description Test successful Kelvin test lead damaged or not properly connected Kelvin test lead damaged or not properly connected Kelvin test lead damaged or not properly connected Resistor damaged or not properly connected
8.3.2 Performing RLO Measurement RLO 10A Limit MAN Kelvin test leads check has been performed successfully.
1. Connect the plug of the power supply cable to the mains socket of the instrument.
2. Connect the other side of the power supply cable to the AC power socket.
3. Briefly press the key ON/OFF to switch on the instrument. 4. Press FUNC and select RLO 10A Limit MAN. 5. If the instrument has not been connected to the mains power sup-
ply the instrument emits an acoustical alarm and a warning is displayed. 6. Plug in the four test leads to the test lead sockets I+, I-, U+ and Uon the top of the instrument. 7. Connect the test probes (Kelvin clips) to the DUT. 8. Press the keys Left or Right to select the limit value. If the limit value is exceeded, the instrument emits an acoustical alarm and a warning is displayed. 9. Press the key START/ENTER. The test is carried out. The result of the measurement and the information about the applied test current is displayed on the screen.
17
METRAOHM 10
8.3.3 Performing RLO Measurement RLO 10A Limit AUTO Kelvin test leads check has been performed successfully.
1. Connect the plug of the power supply cable to the mains socket of the instrument.
2. Connect the other side of the power supply cable to the AC power socket.
3. Briefly press the key ON/OFF to switch on the instrument. 4. Press FUNC and select RLO 10A Limit MAN. 5. If the instrument has not been connected to the mains power sup-
ply the instrument emits an acoustical alarm and a warning is displayed. 6. Plug in the four test leads to the test lead sockets I+, I-, U+ and Uon the top of the instrument. 7. Connect the test probes (Kelvin clips) to the DUT. 8. Press the keys Up or Down to select Length. 9. Press the keys Left or Right to select the length value. 10.Press the keys Up or Down to select Section. 11.Press the keys Left or Right to select the section value. The DUT evaluates the pass/fail limit threshold of the measured resistance. Assumed resistivity (p) of copper used in internal calculations is the standard average value of 0.017 mm2/m. 12.Press the key START/ENTER. The test is carried out. If the calculated limit value is exceeded, the instrument emits an acoustical alarm and a warning is displayed. The result of the measurement and the information about the applied test current is displayed on the screen.
Gossen Metrawatt GmbH
18
Gossen Metrawatt GmbH
8.4 Accessing the Help menu
1. Press the key HELP. The help diagram for the selected measurement mode is displayed on the screen.
2. Press the key ESC to exit the help menu and to return to the last measurement mode.
METRAOHM 10
8.5 Saving Measurement Results
The test result is displayed on the screen.
1. Briefly press the key SAVE. Measurement saved and Record number [n] are displayed on the screen.
The measurement result is saved in the instrument's internal memory. When trying to save a measurement that has already been saved, the message Measurement already saved is displayed on the screen. When trying to save a measurement and the memory is already full, the message Out of memory is displayed on the screen.
8.6 Browsing Measurement Results
The test result is displayed on the screen.
1. Press the key SAVE for a few seconds. A list of recorded measurements is displayed on the screen.
2. Press the keys Up or Down to select the desired measurement record. 3. Press the key START/ENTER.
The details of the selected measurement with all relevant parameters are displayed on the screen. 4. Press the key ESC to return to the previous menu level.
8.7 Saving Measurement Results to a PC
System requirements: · Windows 10 or Windows 11 · .NET Framework 4.8
8.7.1 Installing the RLO GM Logger In the user's personal area myGMC you can register your devices and download related software for free.
1. Go to the website https://www.gmc-instruments.de/services/mygmc. 2. Create an account for the myGMC personal area. 3. Register your instrument in the myGMC personal area. 4. Download the software RLO GM Logger. 5. Unpack the software RLO GM Logger on the PC. 6. Follow the installing instructions on the PC.
8.7.2 Connecting the Instrument to a PC All test objects and test leads have been removed from the instrument.
1. Insert in the USB-B plug into the USB port of the instrument. 2. Insert the USB-A Plug into the USB port of the PC. The USB driver is installed automatically on the PC.
The message Do not unplug the USB until the process is complete. is displayed on the screen of the instrument.
19
METRAOHM 10 8.7.3 Copy Measurement Results to the PC The instrument is connected to the PC. 1. Start the RLO GM Logger on the PC. The RLO GM Logger home screen is displayed.
2. Click on the button Scan Ports. 3. In the dropdown menu Com Port, select the COM port the USB plug
has been assigned to. 4. Click on the button Open Port. The number of records saved in the instrument's internal memory is
displayed.
5. Click on the button Download. The records saved in the instrument's internal memory are listed.
6. Click on the button Excel. The records are copied from the instrument to the PC als xlsx-files.
7. Save the xlsx-file on the PC. The message File [path].xlsx saved! is displayed.
The download is completed.
8.7.4 Disconnecting the Instrument from the PC 1. Click on the button Close Port. The PC disconnects from the instrument.
The device returns to the last measurement mode.
Gossen Metrawatt GmbH
20
Gossen Metrawatt GmbH
8.8 Delete Measurement Results from the Memory
1. Press the key SETTINGS. 2. Use Up / Down to select the submenu Memory. 3. Press START/ENTER to enter the submenu Memory. 4. Use Up / Down to select Clear memory. 5. Press START/ENTER to delete all records from the memory. All records are deleted. 6. In order to return to the previous level without deleting the records
from the memory, press ESC.
8.9 Reading Test Results on a PC
1. Open the xlsx-file you have saved on the PC "Saving Measurement Results to a PC" 19.
A test certificate with the test results is displayed. 2. Complete the test certificate with further details about the test.
METRAOHM 10
21
METRAOHM 10
9 Maintenance
9.1 Cleaning
Gossen Metrawatt GmbH
! Attention!
Do not immerse.
Before cleaning, disconnect the device from the mains and remove all test leads. Clean the instrument by wiping it gently with a damp, lint-free cloth. Do not use any cleaning agents.
9.2 Troubleshooting
In the following we list common problems that may occur during operation and suggest remedies for the elimination of sim-
ple faults. If the recommended procedures do not succeed, please contact our support "Contact, Support and Service" 24
Problem
Remedy
The display remains dark after switching on.
Power supply by battery:
Check if batteries are inserted.
Check if the batteries are inserted correctly (polarity).
The instrument issues an error message and does not start Check if a valid mains voltage is applied
the measurement.
Exclude the presence of potentially hazardous voltage
on the test probes
9.3 Fuse Replacement
The device has 3 fuses ( "Instrument Overview" 4) which must be replaced when defective.
Required Materials
· a Phillips screwdriver for opening the fuse compartment · a replacement fuse which complies with the specifications in the technical data (7) respectively the labeling on the
instrument
1. Switch the test instrument off and disconnect it from mains power. 2. Disconnect all test leads. 3. Remove the screws of the battery/fuse compartment cover on the back side of the instrument. 4. Remove the battery/fuse compartment cover.
! Attention!
Only use replacement fuses which comply with the specifications in the technical data (7) respectively the labeling on the instrument! No other fuses may not be used in the test instrument.
5. Replace the fuse(s). 6. Place the battery/fuse compartment cover onto the battery tray. 7. Fix the screws of the battery/fuse compartment cover. The fuse(s) have been replaced.
9.4 Repair
The instrument is intended to be serviced only by authorized service personnel. Service procedures should only be performed by qualified technical personnel "Contact, Support and Service" 24.
9.5 Calibration
Using your device and the stressing it is subjected to in doing so may result in deviation from the specified levels of accuracy.
In the case of strict measuring accuracy requirements, as well as frequent stress (such as considerable climatic or mechanical stressing), we recommend a relatively short calibration interval of once per year. If this is not the case, a calibration interval of once every 2 to 3 years is sufficient as a rule. For calibrations please contact GMC-I Service GmbH "Contact, Support and Service" 24.
22
Gossen Metrawatt GmbH
METRAOHM 10
You can find a sticker on your device with the device-specific standard calibration interval and information of the service provider on it.
Note!
Date on the calibration certificate / Calibration interval starts upon receipt Your devices comes with a calibration certificate that has a date. It may date back some time if your device was stored a certain time before being sold. The devices are stored according to the defined conditions. The developing drift therefore is negligible for a time period of approximately 1 year. The characteristics of the device are thus within the specifications and you can set the first calibration interval as from receipt.
23
METRAOHM 10
Gossen Metrawatt GmbH
10 Contact, Support and Service
You can reach Gossen Metrawatt GmbH directly and uncomplicated, we have one number for everything! Whether it's a support question, or individual desire, we answer every request at:
+49-911-8602-0
MondayThursday: Friday:
8:00 a.m. 4:00 p.m. 8:00 a.m. 2:00 p.m.
You can also e-mail to:
info@gossenmetrawatt.com
Do you prefer support via e-mail? Measuring and test instruments: Industrial equipment:
support@gossenmetrawatt.com support.industrie@gossenmetrawatt.com
For repairs, replacement parts, and calibrations1 please contact GMC-I Service GmbH:
+49-911-817718-0 service@gossenmetrawatt.com
www.gmci-service.com
Beuthener Str. 41 90471 Nürnberg
Germany
1. DAkkS calibration laboratory per DIN EN ISO/IEC 17025. Accredited at the Deutsche Akkreditierungsstelle GmbH under registration no. D-K-15080-01-01.
24
Gossen Metrawatt GmbH
METRAOHM 10
11 CE Declaration
The instrument fulfills all requirements of applicable EU directives and national regulations. We confirm this with the CE mark. The CE declaration is available upon request. A calibration certificate is included with the instrument. A test report is included with the instrument.
12 Disposal and Environmental Protection
Proper disposal makes an important contribution to the protection of our environment and the conservation of natural resources.
! Attention!
Environmental Damage! Improper disposal results in environmental damage. Follow the instructions concerning return and disposal included in this section.
The following comments refer specifically to the legal situation in the Federal Republic of Germany. Owners or end users who are subject to other regulations must comply with the respective local requirements and implement them correctly on site. Further information can be obtained, for example, from the responsible authorities or the local distributor.
Waste Electrical Equipment, Electrical or Electronic Accessories and Waste Batteries (including rechargeable batteries) Electrical equipment and batteries (including rechargeable batteries) contain valuable raw materials that can be recycled, as well as hazardous substances which can cause serious harm to human health and the environment, and they must be recycled and disposed of correctly.
The symbol at the left depicting a crossed-out garbage can on wheels refers to the legal obligation of the owner or end user (German electrical and electronic equipment act ElektroG and German battery act BattG) not to dispose of used electrical equipment and batteries with unsorted municipal waste ("household trash"). Waste batteries must be removed from the old device (where possible) without destroying them and the old device and the waste batteries must be disposed of separately. The battery type and its chemical composition are indicated on the battery's labelling. If the abbreviations "Pb" for lead, "Cd" for cadmium or "Hg" for mercury are included, the battery exceeds the limit value for the respective metal. Please observe the owner's or end user's responsibility with regard to deleting personal data, as well as any other sensitive data, from old devices before disposal. Old devices, electrical or electronic accessories and waste batteries (including rechargeable batteries) used in Germany can be returned free of charge to Gossen Metrawatt GmbH or the service provider responsible for their disposal in compliance with applicable regulations, in particular laws concerning packaging and hazardous goods. Waste batteries must be handed over in discharged state and/or with appropriate precautionary measures against short-circuiting. Further information regarding returns can be found on our website.
Packaging Materials We recommend retaining the respective packaging materials for the case that you might require servicing or calibration in the future.
! Attention!
Danger of Asphyxiation Resulting from Foils and Other Packaging Materials! Children and other vulnerable persons may suffocate if they wrap themselves in packaging materials, or their components or foils, or if they pull them over their heads or swallow them. Keep packaging materials, as well as their components and foils, out of the reach of babies, children and other vulnerable persons.
In accordance with German packaging law (VerpackG), the user is obligated to correctly dispose of packaging and its components separately, and not together with unsorted municipal waste ("household trash"). Private end consumers can dispose of packaging free of charge at the responsible collection point. Packaging which is not subject to so-called system participation is returned to the appointed service provider. Further information regarding returns can be found on our website.
25
Gossen Metrawatt GmbH
METRAOHM 10
© Gossen Metrawatt GmbH Prepared in Germany · Subject to change, errors excepted · PDF version available on the Internet
All trademarks, registered trademarks, logos, product names, and company names are the property of their respective owners.
Gossen Metrawatt GmbH Südwestpark 15 90449 Nürnberg Germany
Phone +49 911 8602-0 Fax +49 911 8602-669 E-mail info@gossenmetrawatt.com www.gossenmetrawatt.com