Operating Instructions METRISO XTRA High-Precision Insulation, Low Resistance and Voltage Measurement Instrument 3-349-818-03 2/12.
Red LED: limit value exceeded Green LED: limit value adhered to Red LED: – Interference voltage with device off – High test voltage at the measuring terminals during Riso/Rins LCD Panel Function Selector Switch Slot for Carrying Strap Slot for Carrying Strap Setup Menu METRISO XTRA Control panel • • • • Fixed Function Keys ESC: Exit submenu / activate instrument standby state MEM: Key for memory functions HELP: Access context sensitive help Softkeys Parameter selection Limit value specification
Batteries, Fuses Inserting the Battery Holder (side view) Battery Compartment Lid a Battery Holder b Fuse Battery Holder Contacts Battery Compartment Replacement Fuse Battery Compartment Lid Contact Spring User Interface Measuring Connections Option KS-C (Z541F) SHIELD GUARD Option Z550A* COM + COM + * Regarding Z550A: Test Probe with measurement key remote control and LED for illuminating the measuring point: Do not use when measuring PI and DAR.
Battery level Display panel indicator Measurement in progress Bar graph display Overview of Device Settings and Measuring Functions Relative to Rotary Switch Setting Upper range limit Parameter setting Measuring quantities Switch Pictosetting, graph see as of RISO RINS RINS U UN fix PI DAR R Insulation resistance Voltage at the test probes Fixed test voltage, limit values per VDE 0100 Variable test voltage, limit value: 1 MOhm (for go/no-go display while saving the measured value) Variable test voltag
Table of Contents Page Page 1 Applications ...................................................................... 6 11 1.1 1.2 Optional Z550A Remote Control .................................................. 6 Overview of Measuring Instrument Performance Features ...................................................................................... 6 12 Maintenance ...................................................................31 12.1 12.2 12.2.1 12.3 12.3.1 12.3.2 12.4 12.
1 Applications This instrument fulfills all requirements of applicable European and national EC directives. We confirm this with the CE mark. The relevant declaration of conformity can be obtained from GMC-I Messtechnik GmbH. The METRISO XTRA insulation and resistance measuring instrument allows for quick and efficient testing of protective measures in accordance with DIN VDE 0100, ÖVE-EN 1 (Austria), SEV 1000 (Switzerland), and regulations specific to other countries as well.
2 Safety Features and Precautions The electronic measuring and test instrument is manufactured and tested in accordance with safety regulations IEC/EN 610101/VDE 0411-1 and EN 61557. When used for its intended purpose, safety of the operator, as well as that of the instrument, is assured. Read the operating instructions thoroughly and carefully before using your instrument. Follow all instructions contained therein.
3.4 Device Settings – SETUP SETUP Menu Selections for Operating Parameters 0 1 2 Display: date / time Display: automatic shutdown of the tester after 120 s. Display: automatic shutdown of display illumination after 30 s.
SETUP Menu Selection for Operating Parameters 0 1 2 Display: date / time Display: automatic shutdown of the tester after 45 s. Display: automatic shutdown of display illumination after 15 s.
Significance of Individual Parameters ! Attention! Data are lost when the language is changed, or if the instrument is reset to its default settings! Back up your measurement data to a PC with the help of ETC software before pressing the respective key. The prompt window shown at the right asks you to confirm deletion. 0a Test Instrument On-Time The period of time after which the test instrument is automatically shut off can be selected here.
4 General Operation 4.1 Connecting the Instrument 4.3 Optical Indicators LED The test leads are connected to the “+” and “COM” jacks. Status Limit Special Case: Test Probe for Remote Triggering (Option Z550A) Green Option Z550A When inserting the 3-pole plug, make sure that the jack plug is inserted in the START/STOP position. Press and align the 3pole plug such that it is placed flush on the connection terminal.
4.4 Measurement Value Display and Memory The following appear at the display panel: • Measurement values with abbreviations and units of measure • Selected function • Error messages Measurement values for automatic measuring sequences are stored and displayed as digital values until the next measurement sequence is started, or until automatic shut-off occurs. 4.5 Note The depiction of LEDs in these operating instructions may vary from the LEDs on the actual instrument due to product improvements.
4.7 Specifying Nominal Voltage for Uvar and Uramp Nominal voltage can be freely selected within specified limits for the Uvar and Uramp measuring functions: Select the EDIT menu. Select value. Select value. ↵ Accept value. ✓Save value (to list). Delete characters = change cursor position. 1 Access submenu for selecting the desired voltage: Press the key with the icon. 2 Select the desired value with the left or right scroll key. The value is accepted by pressing the ↵ key.
5 Measuring Direct Alternating Voltage You can measure direct voltage, as well as sinusoidal alternating voltage with frequencies ranging from 45 to 65 Hz, with this test instrument. Select Measuring Function Direct voltage Alternating voltage Pulsating voltage (DC + AC TRMS) 2 2 3 V ➭ Select the V measuring function with the rotary switch. Measurement Connection L1 L2 L3 N PE U Max. RB COM SHIELD COM 1.
6 Measuring Insulation Resistance Select Measuring Function UvarUramp RINS ➭ Select the RINS measuring function with the rotary switch and, depending on the measuring task, constant or variable test voltage (Uvar), or a ramp function (Uramp). Semiautomatic Measurement in Multipole Systems Fast, semiautomatic polarity reversal is possible in all rotary switch positions for insulation resistance measurement. However, polarity selection is only relevant for documentation.
6.1 Measuring with Constant Test Voltage and Nominal Value Selection via Rotary Switch Position Set Parameters Test voltage switch position: 50 V / 100 V / 250 V / 500 V / 1000 V 6.2 Measurement with Constant Test Voltage and Variably Adjustable Nominal Value A test voltage which deviates from nominal voltage, and is usually lower, can be selected for measurements at sensitive components, as well as systems with voltage limiting devices.
6.3 Measurement with Rising Test Voltage (ramp function) and Variably Adjustable Final Value The “Uramp” rising test voltage function (ramp function) is used to detect weak points in the insulation, as well as to determine response voltage for voltage limiting components. 6.4 ! Insulation Resistance Measurement – Special Conditions Attention! Insulation resistance can only be measured at voltagefree objects.
6.5 ! Discharging the Device Under Test Attention! If measurement is performed at a capacitive object such as a long cable, it becomes charged with up to approx. 1000 V! Touching such objects is life endangering! When an insulation resistance measurement has been performed on a capacitive object it is automatically discharged by the instrument after measurement has been completed. Contact with the device under test must be maintained to this end.
6.7.1 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. Applications: Faster version of the polarization index test.
8 Measuring Resistance – kOhm Function Resistances of greater than 10 Ω and less than 10 kΩ are measured in this switch position. Refer to section 9 regarding resistances of less than 10 Ω . Select Measuring Function Special Case: Measuring High-Value Resistance with the KS-C Probe Connection SHIELD COM kΩ ➭ Select the kΩ measuring function with the rotary switch.
9 Measuring Low-Value Resistance of up to 10 Ohm (protective conductor and equipotential bonding conductor) Set Polarity Parameter (direction of current flow) Polarity: ± to PE According to the regulations, the measurement of low-value resistance at protective conductors, earth conductors or bonding conductors must be performed with (automatic) polarity reversal of the test voltage, or with current flow in one direction (+ pole to PE) and then the other (– pole an PE).
Start Measurement Automatic Polarity Reversal After the measuring sequence has been started, the instrument performs measurement with automatic polarity reversal, first with current flow in one direction, and then in the other. If the difference between RLO+ and RLO– is greater than 10% with automatic polarity reversal, RLO+ and RLO– values are displayed instead of RLO. The respectively larger value, RLO+ or RLO–, appears at the top and is saved to the database as the RLO value.
Evaluating of Measured Values See table, “Display Values in Consideration of Measuring Uncertainty”, on page 30. Calculation of Cable Lengths for Common Copper Conductors If the key is activated after performance of resistance measurement, the cable lengths corresponding to common conductor cross sections are displayed. If results vary for the two different directions of current flow, cable length is not displayed.
10 Database 10.1 Creating Distributor Structures, General A complete distributor structure with customer, building and distributor data can be created in the METRISO XTRA test instrument. This structure makes it possible to assign measurements to distributors in various buildings and customer facilities. There are two possible procedures: • On location or at the construction site: Create the distributor structure in the test instrument.
Icon Meaning Edit the selected structural element. Distributor Structure Symbology / Tree Structure A check mark to the right of a structural element means that all measurements within the respective hierarchy have been passed. x: At least one measurement has not been passed. No symbol: Measurement has not yet been performed. Memory menu, page 3 of 3 Search for ID number. > Enter complete ID number. Search for text. > Enter full text (complete word).
Select a new object from a list. After selecting text search ... Scroll up Scroll down Acknowledge selection Select character Select character ↵ Accept character ✓ Save object designation Delete characters Character selection: Select the desired object from the list with the ↑↓ keys and acknowledge with the ↵ key. ... and entering the desired text (only full matches are found – no wild cards, case sensitive) ... Enter a designation (Example Distributor).
10.4 Saving Data and Generating Reports Preparing and Executing a Measurement Measurements can be performed and stored to memory for each structural element. Proceed as follows, adhering to the prescribed sequence: ➭ Select the desired measurement with the function selector switch. ➭ Start the measurement by pressing the START key. Upon completion of measurement, the “→ Floppy Disk” softkey is displayed. ➭ Briefly press the “Save Value” key.
Data Evaluation and Report Generation with ETC Software 10.4.1 Use of Barcode Scanners and RFID Readers All data, including the distributor structure, can be transferred to the PC and evaluated with the help of ETC software. Additional information can be entered here subsequently for the individual measurements. After pressing the appropriate key, a report including all measurements within a given distributor structure is generated, or the data are exported to an Excel spreadsheet.
11 Characteristic Values METRISO XTRA Meas. Qty. Resolution 100 k 10 kΩ ... 99.9 kΩ 0.1 k 1M 100 kΩ ... 999 kΩ 1k 10 M 1.00 MΩ ... 9.99 MΩ 10 k 100 M 10.0 MΩ ... 99,9 MΩ 100 k 1G 100 MΩ ... 999 MΩ 1M 10 G 1.00 GΩ ... 9.99 GΩ 10 M 100 G 10,0 GΩ ... 99.9 GΩ 100 M 1T 100 GΩ ... 999 GΩ 1G Open-Circuit Voltage U0max Test Current 50 V /100 V: 1.25 UISO IN = 1 mA 250 V / 500 V / 1000 V: 1.1 UISO ±(5% rdg. + 3 d) ±(7% rdg. + 3 d) ±(25% rdg. + 5 d) 100 V 10.0 V ... 99.9 V 0.
Displays Digital display Limit LED LED ! Uramp LED Multiple display with dot matrix 128 x 128 pixels, backlit (transflective), dimensions: 65 x 65 mm LED lights up red to indicate an exceeded limit value. LED lights up green to indicate adherence to the limit value.
12 Maintenance 12.3 Firmware Revision and Calibration Information See section 3.4. If a fuse has blown due to overload, a corresponding error message appears at the display panel. The instrument’s voltage measuring ranges are nevertheless still functional. 12.2 12.3.1 Melting Fuse 12.
12.4 Housing No special maintenance is required for the housing. Keep outside surfaces clean. Use a slightly dampened cloth for cleaning. In particular for the protective rubber surfaces, we recommend a moist, lint-free microfiber cloth. Avoid the use of cleansers, abrasives or solvents. 12.5 Return and Environmentally Sound Disposal The instrument is a category 9 product (monitoring and control instrument) in accordance with ElektroG (German electrical and electronic device law).
Insulation Resistance Measurement in Different Types of Systems TN–S • • With or without consumer N – PE, separately Attention: – – – – – Open the overcurrent protective device Disconnect the N conductor Jumper the L and N conductors Insulation measurement between L conductors and N to PE Device switch can be open – if single-pole In the distributor: individual and combined measurements TN–C • • With or without consumer N – PE, together TT • With or without consumer 3-phase current (switched at all
13.2 Error Messages The following pop-up windows must be acknowledged and/or cleared by any desired key and the cause of the error must be eliminated. Pop-Up Function Switch Position All except U Interference voltage Remedy: Device under test must be disconnected from all sources of voltage. RLO OFFSET measurement does not make sense. Remedy: Check system. OFFSET measurement of RLO+ and RLO– is still possible. RLO ROFFSET > 50 Ω: OFFSET measurement does not make sense. Remedy: Check system.
Pop-Up Function Switch Position Database and Entry Operations Function / Meaning All The parameters you have selected do not make sense in combination with previously configured parameters. The selected parameter settings will not be saved. Remedy: Enter other parameter settings. All Please enter a designation (alphanumeric). All Operation with a Barcode Scanner Error message appears when the “EDIT” entry field is opened and battery voltage is less than 8 V.
13.3 Attaching the Test Probe Holder to the Carrying Strap 1 Detach the strap from the instrument: Turn out the slotted screw (M3) at the bottom. 13.4 Technical Data for Measurement Cables (scope of delivery: KS17-4 safety cable set) Electrical Safety Maximum rated voltage 600 V 1000 V 1000 V Measuring category CAT IV CAT III CAT II Max.
13.5 Optional Accessories (not included) Master Battery Pack (material no. Z502H) 8 LSD NiMH rechargeable batteries with reduced selfdischarging (AA) (eneloop/Sanyo), 2000 mAh with sealed cells Charger (material no. Z502R) Broad-range charger for charging batteries in the measuring instrument Input: 100 to 240 V AC, output: 16.5 V DC, 0.6 A IS0 Calibrator 1 (material no.
14 Repair and Replacement Parts Service Calibration Center* and Rental Instrument Service If required please contact: GMC-I Service GmbH Service-Center Thomas-Mann-Strasse 16-20 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.
