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Thorne & Derrick VR2250 Instruction Manual

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VR2250
Instruction Manual
CABLE JOINTS, CABLE TERMINATIONS, CABLE GLANDS, CABLE CLEATS
FEEDER PILLARS, FUSE LINKS, ARC FLASH, CABLE ROLLERS, CUT-OUTS
11KV 33KV CABLE JOINTS & CABLE TERMINATIONS
FURSE EARTHING
www.cablejoints.co.uk
Thorne and Derrick UK
Tel 0044 191 490 1547 Fax 0044 191 477 5371
Tel 0044 117 977 4647 Fax 0044 117 9775582

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  • Page 1 VR2250 Instruction Manual CABLE JOINTS, CABLE TERMINATIONS, CABLE GLANDS, CABLE CLEATS FEEDER PILLARS, FUSE LINKS, ARC FLASH, CABLE ROLLERS, CUT-OUTS 11KV 33KV CABLE JOINTS & CABLE TERMINATIONS FURSE EARTHING www.cablejoints.co.uk Thorne and Derrick UK Tel 0044 191 490 1547 Fax 0044 191 477 5371...

  • Page 2: Table Of Contents

    _____________________________________________________________MARVR2250 TABLE OF CONTENTS 1. SAFETY PRECAUTIONS AND PROCEDURES ..................4 1.1. Forward..................................4 1.2. Preliminary InstructionS ............................4 1.3. During Use................................5 1.4. After Use.................................. 5 2. GENERAL DESCRIPTION ........................... 6 2.1. Introduction ................................6 2.2. Functions ................................. 6 3.
  • Page 3 _____________________________________________________________MARVR2250 7.1. Basic Setting: ANALYZER CONFIG ........................61 7.1.1. Type of electrical system under test ..........................61 7.1.2. How to set the fundamental frequency ..........................61 7.1.3. How to set the current range ............................61 7.1.4. Clamp Type ..................................61 7.1.5. How to set the value of the transformer voltage ratio (TV RATIO) ..................61 7.1.6.
  • Page 4 _____________________________________________________________MARVR2250 13.3.3. Display ...................................102 13.3.4. Memory..................................102 13.4. ENVIRONMENT ..............................102 13.5. ACCESSORIES..............................103 14. SERVICE ..............................104 14.1. WARRANTY ................................ 104 14.2. SERVICE ................................104 15. APPENDIX 1 – MESSAGES DISPLAYED ....................105 16. APPENDIX 2 – RECORDABLE PARAMETERS: SYMBOLS..............106...

  • Page 5: Safety Precautions And Procedures

    _____________________________________________________________MARVR2250 1. SAFETY PRECAUTIONS AND PROCEDURES 1.1. FORWARD This instrument conforms with safety standards EN61557 and EN 61010-1 relating to electronic measuring instruments. WARNING For your own safety as well as that of the apparatus you are recommended to follow the procedures described in this instruction manual and carefully read all the notes preceded by the symbol Strictly adhere to the following instructions before and during measurements: Do not take measurements in wet environments or dusty places.

  • Page 6: During Use

    _____________________________________________________________MARVR2250 Please keep to the usual safety standards aimed at: ♦ Protecting against dangerous currents; ♦ Protecting the instrument against improper use. Only the accessories supplied with the instrument guarantee compliance with the safety standards. Accordingly, they must be in good condition and, if necessary, they must be replaced with identical models.

  • Page 7: General Description

    _____________________________________________________________MARVR2250 2. GENERAL DESCRIPTION 2.1. INTRODUCTION The instrument you have just purchased will grant you accurate and reliable measurements provided that it is used according to these instructions. The instrument was designed to grant the user the highest level of safety thanks to an innovative design assuring double insulation and over voltage category III.

  • Page 8: Preparation For Use

    _____________________________________________________________MARVR2250 3. PREPARATION FOR USE 3.1. INSPECTION This instrument has been checked mechanically and electrically prior to shipment. Every care has been taken to ensure that the instrument reaches you in perfect condition. You are recommended, however, to check for any possible damage which might have been caused during transport.

  • Page 9: Calibration

    _____________________________________________________________MARVR2250 WARNING For recordings (ANALYSIS and AUX function) it is recommended to ALWAYS use the external power supply adapter (code MARVR2250PSU), although the instrument does allow the operator to perform a recording using internal batteries. If during a recording the external power supply adapter is de-energised, the instrument will continue the recording using the internal battery power until the batteries are exhausted (the data stored up to the point the instrument shuts down will be saved).

  • Page 10: Instrument Description

    _____________________________________________________________MARVR2250 4. INSTRUMENT DESCRIPTION LEGEND: Display Function Keys Rotary switch START STOP HOLD SAVE ENTER MENU Multifunction Keys. ON/OFF and backlight key. Press for a few seconds to switch ON the ON / OFF instrument, press it briefly to activate the backlight function. START This key is used to start and stop the measurement.

  • Page 11: Display Description

    _____________________________________________________________MARVR2250 4.1. DISPLAY DESCRIPTION The display is a graphic module with a resolution of 128 x 128 pixels The first line of the display shows the function selected and the date and time. If not correct, these can be set according to the procedure described at paragraph 5.2. On the top right corner of the display you can always see the battery indicator and, if the external power supply adapter (code MARVR2250PSU) is connected, the corresponding symbol is displayed.

  • Page 12: Initial Settings

    _____________________________________________________________MARVR2250 5. INITIAL SETTINGS On pressing the MENU key the following screen will be displayed: MENU GENERAL SAFETY TEST MEMORY ANALYZER MEMORY RESET ANALYZER CONFIG RECORDER CONFIG CONTRAST DATE&TIME LANGUAGE ↓ ↑ It is not possible to enter the MENU during a recording or a Real Time Energy measurement.

  • Page 13: Reset

    _____________________________________________________________MARVR2250 5.4. RESET This option re-establishes the initial settings of the instrument in ANALYZER function. The “Current Range” parameter is not modified by the reset command. The initial settings of the instrument consist of: ANALYZER CONFIG: System: SINGLE Frequency: 50Hz Current range: not modified Clamp type:...

  • Page 14: Safety Test Functions

    _____________________________________________________________MARVR2250 6. SAFETY TEST FUNCTIONS 6.1. LOWΩ: CONTINUITY TEST WITH 200mA TEST CURRENT The measurement is performed according to EN 61557-2 and VDE 0413 part 4. WARNING Before carrying out the continuity test make sure that there is no voltage at the ends of the conductor under test.

  • Page 15: Calibrating The Test Leads ("Cal" Mode)

    _____________________________________________________________MARVR2250 6.1.1. Calibrating the test leads ("CAL" Mode) 1. Connect the Red and Black test leads to B1 and B4 input terminals respectively. BLACK Connection of the test leads during calibration procedure. 2. Short-circuit the measuring cable ends making sure that the conductive parts of the croc clips make a good contact to each other (see previous picture).
  • Page 16 _____________________________________________________________MARVR2250 TEST LEADS Before each measurement always make sure that the calibration is applicable to the test leads in use. During a continuity test, if the resistance value free of calibration (that is the resistance value is less than the calibration offset value) is negative, the symbol is displayed.

  • Page 17: Measurement Procedure

    _____________________________________________________________MARVR2250 6.1.2. Measurement Procedure 1. Select the desired mode by means of the F1 key. 2. Connect the Red and Black test leads to B1 and B4 input terminals respectively P-E Conductor BLAC Main Earth Connector Connection of the test leads during LOW Ω test. 3.

  • Page 18: Results Of "Rt+" And "Rt-" Modes

    _____________________________________________________________MARVR2250 6.1.4. Results of "RT+" and "RT-" modes If the resistance value LOWΩ 05.06.01 of RT+ or RT+ is lower than 5Ω, the instrument Max resistance value of R+ or R-. emits a double sound 1.07Ω signal indicating the positive outcome Test current 219mA...
  • Page 19 _____________________________________________________________MARVR2250 In case that: LOWΩ 05.06.01 >R CALIBRATION MEASURED the instrument displays 0.00Ω the screen alongside. ATTENTION: >R CALIBRATION MEASURED 0.00Ω 0.00Ω 219mA 219mA CAL > RES AUTO 0.11Ω FUNC THE PREVIOUS RESULTS CANNOT BE SAVED. value LOWΩ 05.06.01 resistance higher than 5Ω...

  • Page 20: Mω: Insulation Resistance Measurement With 50V, 100V, 250V, 500V, 1000V Test Voltage

    _____________________________________________________________MARVR2250 6.2. MΩ: INSULATION RESISTANCE MEASUREMENT WITH 50V, 100V, 250V, 500V, 1000V TEST VOLTAGE These measurements comply with IEC 61557-2 and VDE 0413 part 1. WARNING Before carrying out the insulation test, make sure that the circuit under test is not energised and all the loads are disconnected. Turn the switch to the MΩ...
  • Page 21 _____________________________________________________________MARVR2250 Standard Brief description Test voltage Maximum limit value > 0.250MΩ Systems SELV or PELV 250VDC CEI 64-8/6 Systems up to 500V 500VDC > 0.500MΩ Systems over 500V 1000VDC > 1.0MΩ > 50kΩ (se V<500V) Floor and wall insulation 500VDC CEI 64-8/4 Floor and wall insulation in systems over 500V 1000VDC...

  • Page 22: Results Of "Man" Mode

    _____________________________________________________________MARVR2250 6.2.2. Results of "MAN" mode At the end of the test if Insulation resistance MΩ 05.06.01 the insulation resistance is lower than R (see Voltage during the test Table 2) and the 1.07 MΩ instrument generated Duration of the test the nominal test voltage, the instrument Test mode...

  • Page 23: Results Of "Tmr" Mode

    _____________________________________________________________MARVR2250 6.2.3. Results of "TMR" mode If the insulation Insulation resistance MΩ 05.06.01 resistance is lower than (see Table 2) and Voltage during the test Ω the instrument 1.07 generated the nominal Duration of the test test voltage, the instrument emits a Test mode 514V double sound signal...

  • Page 24: Man" And "Timer" Mode Faulty Cases

    _____________________________________________________________MARVR2250 6.2.4. "MAN" and "TIMER" mode faulty cases If the instrument MΩ 05.06.01 detects the external Ω power supply adapter -.- - connected, it displays a screen similar to this. ---V Disconnect the external REMOVE POWER power supply adapter 500V FUNC VNOM If the instrument...

  • Page 25: Rcd: Test On "A" And "Ac" Type Rcds

    _____________________________________________________________MARVR2250 6.3. RCD: TEST ON "A" AND "AC" TYPE RCD The test is executed according to IEC61557-6, EN61008, EN61009, EN60947-2 B 4.2.4 and VDE 0413 part 6. WARNING The automatic check of the RCD causes tripping of the RCD itself. Therefore check that all devices connected downstream of the RCD under test are not damaged by power off.
  • Page 26 _____________________________________________________________MARVR2250 The F2 key selects one of the following rated tripping currents of the RCD (which can be shown cyclically when pressing the key): 10mA. 30mA. 100mA. 300mA. 500mA. The F3 key permits to select the RCD type (which can be shown cyclically when pressing the key): "...

  • Page 27: Tripping Times For The General And Selective Rcds

    _____________________________________________________________MARVR2250 6.3.1. Tripping times for the general and selective RCDs Table of tripping times for I x1, I x2, I x5 and AUTO tests. Δ Δ Δ If the parameters set on the instrument comply with the type of RCD under test (and if the latter works properly) the tests x1, x2, and x5 SHALL cause the RCD tripping within the times shown in the following table: RCD type...

  • Page 28: Measurement Procedure

    _____________________________________________________________MARVR2250 6.3.2. Measurement procedure 1. Select the desired test parameter with the F1, F2, F3 and F4 keys. 2. Connect the Red, Green and Black connectors of the three-terminal mains cable or of the split cables to the corresponding input terminals of the instrument B1, B3, B4 Black Green Green...
  • Page 29 _____________________________________________________________MARVR2250 6.3.2.1. Results of "x½" mode START 4. Press the START key once to execute a test with 0° Current waveform. STOP Press the START key twice to execute a test with 180° Current waveform. WARNING Never disconnect the test leads when the message "MEASURING" is displayed.
  • Page 30 _____________________________________________________________MARVR2250 6.3.2.3. Results of "AUTO" mode 4. Press the START key once to execute the test. The instrument carries out the START STOP following six tests with different values of rated current: 1/2I with 0° current waveform (the RCD shall not trip). Δ...
  • Page 31 _____________________________________________________________MARVR2250 6.3.2.4. Results of "RAMP " mode 4. Press the START key once to execute a test with 0° Current waveform. START STOP Press the START key twice to execute a test with 180° Current waveform. The instrument generates a leakage current growing step by step for a given time interval.
  • Page 32 _____________________________________________________________MARVR2250 6.3.2.5. Results of "RA " mode 4. Press the START key once: the instrument carries out the test. START STOP WARNING Never disconnect the test leads when the message "MEASURING" is displayed. The RCD must NOT trip and the instrument emits a double sound Global Earth Resistance 05.06.01...

  • Page 33: Rcd Faulty Cases

    _____________________________________________________________MARVR2250 6.3.3. RCD Faulty cases 6.3.3.1. Connection troubles If the instrument detects 05.06.01 the external power supply adapter connected, it will display - - - a screen similar to this FRQ=50.0Hz Ut= ---V VP-N=230V Vp-PE=230V Disconnect the External REMOVE POWER Power Supply Adapter ⎯...
  • Page 34 _____________________________________________________________MARVR2250 This screen is displayed 05.06.01 when the phase conductor has been reversed with the neutral - - - one. The instrument does not FRQ=50.0Hz Ut= ---V VP-N=231V VP-PE= perform the test. Phase and Neutral Exchange the red cable CHANGE P-N Conductors are reversed.
  • Page 35 _____________________________________________________________MARVR2250 If a contact voltage U 05.06.01 higher than the selected limit (U ) is detected, the instrument - - - interrupts the test and emits a long sound FRQ=50.0Hz Ut= ---V VP-N=234V VP-PE= 234V signal at the end of the The instrument cannot test, and displays a UT DANGEROUS...
  • Page 36 _____________________________________________________________MARVR2250 When using the R 05.06.01 function, if a contact voltage U higher than the selected limit (U 1800 Ω is detected, the instrument emits a long FRQ=50.0Hz VP-N=234V VP-PE= sound signal at the end The instrument cannot of the test and displays UT NOT OK detect an efficient a screen similar to this.
  • Page 37 _____________________________________________________________MARVR2250 If the RCD tripping time 05.06.01 RCD tripping time is is higher than the greater than the maximum instrument’s measuring measurable time (it limits, the instrument >999 depends on type of test, emits a long sound see following table). signal at the end of the FRQ=50.0Hz VP-N=231V...

  • Page 38: Loop : Measurement Of Line Impedance, Fault Loop Impedance, Prospective Short Circuit Current Calculation And Phase Sequence Indicator

    _____________________________________________________________MARVR2250 6.4. LOOP MEASUREMENT OF LINE IMPEDANCE, FAULT LOOP IMPEDANCE, PROSPECTIVE SHORT CIRCUIT CURRENT CALCULATION AND PHASE SEQUENCE INDICATOR Turn the switch on LOOP position. The F1 key selects one of the following measuring modes: Mode "P-N" (the instrument measures the impedance between the phase and neutral conductors and calculates the phase to neutral prospective short circuit current).

  • Page 39: Measurement Procedure And Results Of "P-N" Mode

    _____________________________________________________________MARVR2250 6.4.1. Measurement procedure and results of "P-N" mode 1. Select P-N mode by means of the F1 key. 2. Connect the Red, Green and Black connectors of the three-terminal mains cable or of the split cables to the corresponding input terminals of the instrument B1, B3, B4. Green Black Black...

  • Page 40: Measurement Procedure And Results Of "P-P" Mode

    _____________________________________________________________MARVR2250 6.4.2. Measurement procedure and results of "P-P" mode 1. Select P-P mode by means of the F1 key. 2. Connect the Red, Green and Black connectors of the three-terminal mains cable or of the split cables to the corresponding input terminals of the instrument B1, B3, B4 Green Black Instrument connection for P-P test in a 400V three-phase system...

  • Page 41: Measurement Procedure And Results Of "P-Pe" Mode

    _____________________________________________________________MARVR2250 6.4.3. Measurement procedure and results of "P-PE" mode 1. Select P-PE mode by means of the F1 key. 2. Connect the Red, Green and Black connectors of the three-terminal mains cable or of the split cables to the corresponding input terminals of the instrument B1, B3, B4. Green Black Green...
  • Page 42 _____________________________________________________________MARVR2250 Value of phase to earth LOOP 05.06.01 resistance expressed in Ω. At the end of the test the instrument emits a Ω 1.07 double sound signal Value of the phase to earth 215A indicating that the test prospective short circuit current expressed in completed correctly amperes calculated...

  • Page 43: Measurement Procedure And Results Of " R " Mode

    _____________________________________________________________MARVR2250 6.4.4. Measurement procedure and results of " R " mode 1. Select R mode by means of the F1 key. 2. Connect the Red, Green and Black connectors of the three-terminal mains cable or of the split cables to the corresponding input terminals of the instrument B1, B3, B4. Black Green Green...

  • Page 44: Measurement Procedure And Results Of " " Mode

    _____________________________________________________________MARVR2250 6.4.5. Measurement procedure and results of " " mode 1. Select mode by means of the F1 key. 2. Connect the Red, Yellow and Green connectors of the split cables to the corresponding input terminals of the instrument B1, B2, B3. Yellow Green Instrument connection for Phase Sequence Detection in a 400V three-phase system...

  • Page 45: Loop Faulty Cases

    _____________________________________________________________MARVR2250 6.4.6. LOOP Faulty Cases If the instrument detects LOOP 05.06.01 the external power supply adapter Ω - - - connected, the ---A instrument will show a screen similar to this. FRQ=50.0HZ VP-N=231V VP-PE=230V Disconnect the External REMOVE POWER Power Supply Adapter FUNC Z2Ω...
  • Page 46 _____________________________________________________________MARVR2250 A screen similar to this LOOP 05.06.01 is displayed when the phase conductor has - - - Ω been reversed with the ---A neutral one. The instrument does not FRQ=50.0HZ perform the test. VP-N=231V VP-PE= Exchange the red cable Phase and Neutral CHANGE P-N with the black one.
  • Page 47 _____________________________________________________________MARVR2250 If a contact voltage U LOOP 05.06.01 higher than the selected limit (U ) is - - - Ω detected, the instrument ---A interrupts the test and emits a long sound FRQ=50.0HZ signal and displays a Message “Ut”: the VP-N= Vp-PE= screen similar to this.
  • Page 48 _____________________________________________________________MARVR2250 Using the " " mode, if LOOP 05.06.01 a Phase to Phase voltage is lower than - - - 100V, the instrument displays a screen similar to this. FRQ =50.0HZ VR-S=391V VS-T= VT-R= Phase to phase LOW VOLTAGE voltage is lower than 100V PHASE ROTATION FUNC...
  • Page 49 _____________________________________________________________MARVR2250 If in modes P-P and P-N Message ">199.9" means LOOP 05.06.01 that the resistance the instrument carries measured is higher than out the test and detects Ω >199.9 the maximum measurable a resistance higher ---A than 199.9Ω, a screen similar to this displayed.

  • Page 50: Earth: Soil Resistance And Resistivity Measurements

    _____________________________________________________________MARVR2250 6.5. EARTH: SOIL RESISTANCE AND RESISTIVITY MEASUREMENTS Turn the switch to the EARTH position. The F1 key selects one of the following measuring modes (which can be shown cyclically when pressing the key): Mode "2-W" (the instrument measures the resistance between 2 points). Mode "3-W"...

  • Page 51: Measurement Procedure And Results Of "2-W"And "3-W" Mode

    _____________________________________________________________MARVR2250 6.5.1. Measurement procedure and results of "2-W"and "3-W" mode 1. Select "2-W" or "3-W" Earth measurement mode by means of the F1 key. 2. Connect the Red, Yellow, Green and Black cables to the corresponding input terminals of the instrument B1, B2, B3, B4 (see possible connections in the following pictures).

  • Page 52: Measurement Procedure And Results Of "Ρ" Mode

    _____________________________________________________________MARVR2250 6.5.2. Measurement procedure and results of "ρ" mode ρ 1. Select measurement mode by using the F1 key. 2. Select the distance d between the earth rods by using the F3 and F4 keys. 3. Connect the Red, Green, Yellow and Black connectors of the single cables to the corresponding input terminals of the instrument B1, B2, B3, B4.

  • Page 53: 2-W", "3-W" And "Ρ" Faulty Cases

    _____________________________________________________________MARVR2250 6.5.3. "2-W", "3-W" and "ρ" faulty cases If the instrument detects EARTH 05.06.01 the external power supply adapter - - - Ω connected to the Vd= ---V instrument it will show a screen similar to this. Test:04 Disconnect the External RAVG=0.74Ω...
  • Page 54 _____________________________________________________________MARVR2250 The message "Rp HIGH" indicates that the instrument cannot EARTH 05.06.01 produce the minimum current necessary for Ω - - - the measurement. Vd= 1V Check that the terminals are correctly connected Test:04 and the auxiliary earth RAVG=0.74Ω rod connected to B2 Message "Rp HIGH": Check Rp HIGH auxiliary earth rods.
  • Page 55 _____________________________________________________________MARVR2250 If the instrument detects a resistance value higher than EARTH 05.06.01 Message ">1999" means that 1999Ω, it will display a the resistance value is higher than the maximum screen similar to this. Ω >1999 measurable. Vd= 1V Test:04 RAVG=0.74Ω FUNC This result can be stored by pressing the SAVE key twice (see paragraph 8.1).

  • Page 56: Leakage Current: Real Time Measurement

    _____________________________________________________________MARVR2250 6.6. LEAKAGE CURRENT: REAL TIME MEASUREMENT This working mode allows the user to perform real time measurement and recording of Leakage Current, using the External Flexible Clamp. Turn the switch to the "AUX" position. 1. On pressing this key you will change the measuring unit of the instrument’s input.
  • Page 57 _____________________________________________________________MARVR2250 PE (Protection Cunductor) PE (Protection Cunductor) SINGLE PHASE THREE PHASE PHASE LOAD OR LOAD OR ELECTRICAL PLANT ELECTRICAL PLANT NEUTRAL Indirect Leakage Current measurement Indirect Leakage Current measurement in a single phase system in a three phase system PHASE NEUTRAL SINGLE PHASE THREE PHASE...

  • Page 58: Leakage Current: Recording

    _____________________________________________________________MARVR2250 6.7. LEAKAGE CURRENT: RECORDING Before starting a recording we recommend the user checks that real time values are correct, and then follow the measurement procedure described in paragraph 6.6. In addition, it is fundamental that instrument settings correspond to the accessories in use. For this we recommend that the user checks the instrument’s settings before executing an AUX recording.
  • Page 59 _____________________________________________________________MARVR2250 To select AUTOMATIC start/stop mode, MENU place the cursor on MANU, and select RECORDER CONFIG AUTO mode by using F3 or F4. The time and date are then displayed. START MANU To revert to MANUAL mode, place the STOP cursor on AUTO and select MANU mode MANU using F3 or F4...

  • Page 60: Recording: Setting Of Typical Configurations

    _____________________________________________________________MARVR2250 6.7.2. RECORDING: setting of Typical Configurations The following “Typical Configurations” are selectable via RECORDER CONFIG menu: Standard Configuration Description LEAKAGE (I1) Setting of measuring and recording mode of Leakage current on I1 channel. To activate the above configuration, follow this procedure: 1.

  • Page 61: Analyzer

    _____________________________________________________________MARVR2250 7. ANALYZER This function allows the following operations: Display in real time the electrical parameters of a single phase system (with and without neutral wire) and the harmonic analysis of voltage and current. Conduct a direct energy measurement (without memorising). Memorise (pressing SAVE key) the sampled values of the parameters present at the instrument input generating an "Smp"...

  • Page 62: Basic Setting: Analyzer Config

    _____________________________________________________________MARVR2250 7.1. BASIC SETTING: ANALYZER CONFIG Place the rotary switch in the ANALYZER position, press the MENU key, use the F1/F2 keys to select the ANALYZER CONFIG item and press the ENTER Key. The following screen will be displayed: ANALYZER CONFIG SYSTEM :SINGLE FREQUENCY:50HZ...

  • Page 63: How To Enable/Disable The Password

    _____________________________________________________________MARVR2250 7.1.6. How to enable / disable the password The instrument is provided with password protection to avoid the accidental interruption of recording or energy measurements. Once a recording or a direct energy measurement has been started (with the option “PASSWORD” enabled), approximately 3 minutes from the last key press or switch rotation the START/STOP key is disabled.

  • Page 64: Basic Setting: Recorder Config

    _____________________________________________________________MARVR2250 7.2. BASIC SETTING: RECORDER CONFIG Place the rotary switch in the ANALYSER position, press the MENU key, use the F1/F2 keys select the RECORDER CONFIG and press the ENTER Key. This option allows you to check and modify the recording parameters, and the selected parameters (up to a maximum of 62 + Frequency).
  • Page 65 _____________________________________________________________MARVR2250 To select AUTOMATIC start/stop MENU mode, place the cursor on MANU, and RECORDER CONFIG select AUTO mode by using F3 or F4. The time and date are then displayed. START MANU To revert to MANUAL mode, place the STOP cursor on AUTO and select MANU MANU mode using F3 or F4...
  • Page 66 _____________________________________________________________MARVR2250 From 2 screen of RECORDER CONFIG MENU ENTER Use the multifunction keys F1, F2 to position the RECORDER CONFIG cursor on the desired CURRENT: word and use the multifunction keys F3 / F4 to modify the value or HARM. REC:Pg (ON) select / deselect the desired parameter (it’s selected if marked in...
  • Page 67 _____________________________________________________________MARVR2250 From 3 screen of RECORDER CONFIG MENU ENTER RECORDER CONFIG CO-GENERATION:ON POWER:Pg ENERGY:Pg ↓ ↑ Example of 4 screen In order to select the POWER to be recorded use the multifunction keys F1, F2 to position the cursor on the ENTER corresponding “Pg”...
  • Page 68 _____________________________________________________________MARVR2250 From 3 screen of RECORDER CONFIG MENU ENTER RECORDER CONFIG CO-GENERATION:ON POWER:Pg ENERGY:Pg ↓ ↑ Example of 4 screen In order to select the ENERGIES to be recorded use the multifunction keys F1, F2 to position the cursor on the corresponding “Pg” ENTER Symbol and then press F3 RECORDER CONFIG...
  • Page 69 _____________________________________________________________MARVR2250 Symbols Description Advised settings The recording of all the selected parameters will start at 00 ☺ START:MAN seconds after pressing START/STOP (see chapter 9.1). The recording of all the selected parameters will be interrupted ☺ STOP:MAN manually by pressing START/STOP (see chapter 9.1). The recording of all the selected values will be started / interrupted at START:AUTO the set dates and times.
  • Page 70 _____________________________________________________________MARVR2250 ON = the instrument is able to manage CO-GENERATION of electrical equipment (that is, the equipment under test is able to generate energy besides absorbing it). Accordingly, the instrument will record the powers and energies both absorbed CO-GENERATION and generated. If this flag is enabled the maximum number of parameters which can be selected decrease to 38.

  • Page 71: Analyzer Functions

    _____________________________________________________________MARVR2250 7.3. ANALYZER FUNCTIONS For basic use, the main working mode of the ANALYZER mode can be selected by means of F3 and F4. "VOLTAGE" function: to be used to display voltage and corresponding harmonics (see paragraph 7.4) "CURRENT" function: to be used to display current and corresponding harmonics (see paragraph 7.5) "POWER"...

  • Page 72: Meter" Mode

    _____________________________________________________________MARVR2250 7.4.2. "METER" mode In this mode the instrument shows a screen similar to this, according to the settings made as per paragraph 7.1. 27.09.00 17:35:12 VOLTAGE SINGLE PHASE = 230.2 V Vpk1 = 325.5 V ThdV = 0.0 Freq = 50.0 Hz HARM.

  • Page 73: Harm" Mode

    _____________________________________________________________MARVR2250 7.4.3. "HARM" mode On selecting the HARM mode a screen similar to this will be displayed, according to the settings made as per paragraph 7.1. The screen shows the harmonics of the voltage. 27.09.00 17:35:12 = 230.2 10.2 ThdV = 11.0 ←...

  • Page 74: Wave" Mode

    _____________________________________________________________MARVR2250 7.4.4. "WAVE" mode On selecting the WAVE mode, a screen similar to this will be displayed, according to the settings made as per paragraph 7.1. The screen shows the waveform of the voltage. 27.09.00 17:35:12 = 230.2 Vpk1 = 325.5 freq = 50.0 Example of screen...

  • Page 75: Current" Function

    _____________________________________________________________MARVR2250 7.5. "CURRENT" FUNCTION This function displays in real time the RMS value of AC/DC current, the peak, the ThdI value, the waveform and the harmonic spectrum of the current. 7.5.1. Symbols The CURRENT position has three working modes: METER WAVE HARM These modes will be described in detail in the next paragraphs.

  • Page 76: Meter" Mode

    _____________________________________________________________MARVR2250 7.5.2. “METER" mode In this mode the instrument shows a screen similar to this, according to the settings made as per paragraph 7.1. 27.09.00 17:35:12 CURRENT SINGLE PHASE = 30.21 A Ipk1 = 49.53 A ThdI = 23.06 % freq = 50.0 Hz CLAMP TYPE: STD...

  • Page 77: Harm" Mode

    _____________________________________________________________MARVR2250 7.5.3. “HARM" mode On selecting the HARM mode a screen similar to this will be displayed according to the settings made as per paragraph 7.1. The screen shows the harmonics of the current. 27.09.00 17:35:12 = 230.2 10.2 ThdI = 11.0 ←...

  • Page 78: Wave" Mode

    _____________________________________________________________MARVR2250 7.5.4. "WAVE" mode On selecting the WAVE mode a screen similar to this will be displayed according to the settings made as per paragraph 7.1. The screen shows the waveform of the current. 27.09.00 17:35:12 = 230.2 Ipk1 = 325.5 freq = 50.0 Example of screen...

  • Page 79: Power" Function

    _____________________________________________________________MARVR2250 7.6. "POWER" FUNCTION This function permits a display in real time of the RMS value of AC/DC voltage, the peak and ThdV value and the waveform of the voltage, the RMS value of AC/DC currents, the peak, Thdl value and the waveform of the current. Furthermore, the instrument calculates and displays the value of the active, reactive and apparent power and the value of the power factors and cosϕ.

  • Page 80: Meter" Mode

    _____________________________________________________________MARVR2250 7.6.2. "METER" mode In this mode the instrument shows a screen similar to this, according to the settings made as per paragraph 7.1. 27.09.00 17:35:12 POWER SINGLE PHASE 230.0 V 145.3 A 32.91 kW 5.767 kVAR 33.41 kVA 0.99 dpf1 = 0.99 WAVE...

  • Page 81: Wave" Mode

    _____________________________________________________________MARVR2250 7.6.3. "WAVE" mode Selecting the WAVE mode a screen similar to this will be displayed according to the settings made as per paragraph 7.1. The screen shows the waveform of the current and the voltage. 27.09.00 17:35:12 = 229.7 = 132.0 = 0.98 Example of screen...

  • Page 82: Energy" Function

    _____________________________________________________________MARVR2250 7.7. "ENERGY" FUNCTION This function displays the values of the active powers, capacitive and inductive reactive powers, power factor and cosϕ. Furthermore, the instrument is able to measure directly the values of the energies and the values of the capacitive and inductive reactive energies (see 7.7.2) 7.7.1.

  • Page 83: Meter" Mode

    _____________________________________________________________MARVR2250 7.7.2. "METER" mode In this mode the instrument shows a screen similar to this, according to the settings made as per paragraph 7.1. 27.09.00 17:35:12 ENERGY SINGLE PHASE = 0.000 kWh Erc1 = 0.000 kVARh Eri1 = 0.000 kVARh = 36.38 kW = 6.375 kVAR = 36.94 kVA...

  • Page 84: Measuring Procedures

    _____________________________________________________________MARVR2250 7.8. MEASURING PROCEDURES 7.8.1. Using the Instrument in a Single Phase System WARNING The maximum voltage between B1 and B4 inputs is 600 V~ (CATII) / 350V~ phase – earth or 600V~ (CATIII) / 300 V~ phase to earth. Do not measure voltages exceeding the limits prescribed by this manual.

  • Page 85: Using The Instrument In A Three Phase System

    _____________________________________________________________MARVR2250 9. If you want to record: a) Check, and if needed modify, the values of the basic parameters (see paragraphs 7.1 and 7.2). b) Check, and if needed modify, the recording parameters by pressing MENU (see the paragraph corresponding to the position of the rotary switch). c) To start the recording press START (see chapter 6).

  • Page 86: Saving Results

    _____________________________________________________________MARVR2250 8. SAVING RESULTS The SAVE button can be used to store the displayed results related to the rotary switch position: For SAFETY TEST and for AUX rotary switch position: pressing this key will store the displayed result, generating a record in the SAFETY TEST MEMORY (see paragraph 10.1) ANALYZER rotary switch position: pressing this key will store the displayed result generating an "Smp"...

  • Page 87: Recordings

    _____________________________________________________________MARVR2250 9. RECORDINGS 9.1. START A RECORDING The recording function is available for the ANALYZER and AUX rotary switch positions. As detailed in the paragraphs 6.7.1 and 7.2, a recording can be started manually or automatically. Therefore, after setting all the parameters and leaving the Menu, the instrument will start to record: MANUALLY: the recording will start when the instrument’s time reaches the “00”...

  • Page 88: Setting Typical Configurations

    _____________________________________________________________MARVR2250 9.2. SETTING TYPICAL CONFIGURATIONS In order to facilitate this task, the instrument is provided with the two pre-set recording modes: 1. Default Configuration: this is comprehensive and should fit most cases. 2. Typical Configuration: it is possible to select recording with pre-set parameters for the following situations: EN50160 Setting parameters for Network Quality in compliance with EN 50160 standard...

  • Page 89: Typical Configurations

    _____________________________________________________________MARVR2250 By pressing START/STOP the recording of the selected parameters is started according to the settings made in the MENU (see paragraphs 7.1 and 7.2). The rotary switch position does not affect the recording setting. As the default value of the integration periods is set at 15 minutes, the instrument will store data in the temporary memory for 15 minutes.
  • Page 90 _____________________________________________________________MARVR2250 EN50160 ANALYZER CONFIG: System: SINGLE Frequency: 50Hz Current Range: not modified Clamp Type: TV Ratio: not modified Password: not modified RECORDER CONFIG: Start: MANU (the recording is started 1 minute after pressing the START/STOP key) Stop: MANU Integration period: 10min Recording of harmonics: Recording of Voltage anomalies (voltage Dips and Surge) :...
  • Page 91 _____________________________________________________________MARVR2250 Current Range: not modified Clamp Type: TV Ratio: not modified Password: not modified RECORDER CONFIG: Start: MANU (the recording is started 1 minute after pressing the START/STOP key) Stop: MANU Integration period: 10min Recording of harmonics: Recording of Voltage anomalies (voltage Dips and Surge) : Selected voltages: Sel.
  • Page 92 _____________________________________________________________MARVR2250 POWER & ENERGY ANALYZER CONFIG: System: SINGLE Frequency: 50Hz Current Range: not modified Clamp Type: TV Ratio: not modified Password: not modified RECORDER CONFIG: Start: MANU (the recording is started 1 minute after pressing the START/STOP key) Stop: MANU Integration period: 15min Recording of harmonics:...

  • Page 93: During A Recording

    _____________________________________________________________MARVR2250 9.3. DURING A RECORDING If during a recording the external power supply is de-energised, the instrument will continue the recording using the internal battery power until the batteries are exhausted (the data stored up to the point the instrument shuts down will be saved). We recommend you ALWAYS insert a new set of batteries before a long recording.

  • Page 94: Rotary Switch During A Recording

    _____________________________________________________________MARVR2250 9.3.2. Rotary Switch during a recording If you move the rotary switch during a recording the following screen will appear: Recording Recording This screen means that a recording is running. The instrument will continue to record. 9.4. STOPPING A RECORDING OR AN ENERGY MEASUREMENT The instrument uses a protective routine to avoid interruption of a recording or an energy measurement.

  • Page 95: Instrument Memory

    _____________________________________________________________MARVR2250 INSTRUMENT MEMORY By pressing the MENU key the following screen will be displayed: MENU GENERAL SAFETY TEST MEMORY ANALYZER MEMORY RESET ANALYZER CONFIG RECORDER CONFIG CONTRAST DATE&TIME LANGUAGE ↓ ↑ It is not possible to enter the MENU during a recording or a Real Time Energy measurement.

  • Page 96: Analyzer Memory

    _____________________________________________________________MARVR2250 10.2. ANALYZER MEMORY This option permits you to display: The contents of the instrument memory The size of the memorised data The space available for future recordings (expressed in days and hours) The stored data can be displayed and analysed only by downloading the data to a PC with the operating software.

  • Page 97: Connecting The Instrument To A Pc

    _____________________________________________________________MARVR2250 CONNECTING THE INSTRUMENT TO A PC In order to connect the instrument to a PC you must connect the optical serial cable that is shipped with the instrument to a PC COM port. The available transmission speeds are the following: 9600, 19200, 57600 (default value) The value of the transmission speed (Baud Rate) is displayed on the initial screen (immediately after turning on the instrument, see paragraph 4.2).

  • Page 98: Maintenance

    _____________________________________________________________MARVR2250 MAINTENANCE 12.1. GENERAL INSTRUCTIONS The tester you have purchased is a precision instrument. Please follow the instructions for use and storage detailed in this manual to avoid any possible damage or danger during use. Do not use this tester under unfavourable conditions of high temperature or humidity. Do not expose to direct sunlight.

  • Page 99: Technical Specifications

    _____________________________________________________________MARVR2250 TECHNICAL SPECIFICATIONS 13.1. TECHNICAL FEATURES Accuracy is indicated as [% of reading + number of digits]. It refers to the following atmospheric conditions: a temperature of 23°C ± 5°C with a relative humidity < 60%. Martindale Electric Ltd reserves the right to change specification without notice, and without incurring any obligation Safety Test functions LOWΩ: 200mA CONTINUITY TEST (AUTO, RT+, RT- MODE)
  • Page 100 _____________________________________________________________MARVR2250 FREQUENCY MEASUREMENT Range [Hz] Resolution [Hz] Accuracy ±(0.1%Reading + 1 digit) 47.0 63.6 RCD and LOOP function are active only for 50Hz ± 0,5Hz frequency VOLTAGE MEASUREMENT (RCD, LOOP, PHASE ROTATION) Range [V] Resolution [V] Accuracy ±(3%Reading + 2 digits) 460V LOOP P-P, P-N: LINE IMPEDANCE MEASUREMENT (Phase Phase, Phase...

  • Page 101: Analyzer And Aux Functions

    _____________________________________________________________MARVR2250 13.1.1. ANALYZER and AUX functions VOLTAGE MEASUREMENT – SINGLE PHASE SYSTEM (AUTORANGE) Range [V] Resolution [V] Accuracy Input Impedance 310V 0.2V 300kΩ (Phase - Neutral) ±(0.5% Reading+2digits) 300kΩ (Phase - Phase) 600V 0.4V VOLTAGE SAG AND SURGE DETECTION – SINGLE PHASE SYSTEM (MANUAL RANGE) Resolution Resolution Accuracy...

  • Page 102: Standards

    _____________________________________________________________MARVR2250 13.2. STANDARDS 13.2.1. General Safety EN 61010-1 + A2 (1997) Protection classification Class 2 - Double Insulation Pollution degree Degree of Protection: IP50 Over-Voltage Category CAT II 600V~ / 350V~ (phase –earth) CAT III 600V~ / 300V~ (phase –earth) Usage: Indoor;...

  • Page 103: General Specifications

    _____________________________________________________________MARVR2250 13.3. GENERAL SPECIFICATIONS 13.3.1. Mechanical Data Dimensions 225 (L) x165 (W) x 105 (H) mm Weight 1295g approx (including batteries) 1150g approx (excluding batteries) 13.3.2. Power supply Batteries 6 x 1.5-LR6-AA-AM3-MN 1500 Battery Life: LOWΩ: approx: 800 tests MΩ: approx: 500 tests RCD AC and A Type: approx: 1000 tests...

  • Page 104: Accessories

    _____________________________________________________________MARVR2250 13.5. ACCESSORIES Standard accessories Description GB 13A cable with 3 terminals • Set with 4 cables (2m), 4 croc clips, • Management Software + RS232 Optical-Serial Cable • Zip Carrying Case • Calibration Certificate ISO9000 • User's Manual • Optional Accessories Description Code...

  • Page 105: Service

    _____________________________________________________________MARVR2250 SERVICE 14.1. WARRANTY Faults in manufacture and materials are fully guaranteed for 24 months from date of invoice and will be rectified by us free of charge, provided that the unit has not been tampered with and is returned to us with its housing unopened. Damage due to dropping, abuse or misuse is not covered by the guarantee.

  • Page 106: Appendix 1 - Messages Displayed

    _____________________________________________________________MARVR2250 APPENDIX 1 – MESSAGES DISPLAYED Message Description Advices AUTONOM: Available memory for recording CLEAR ALL? (Enter) The operator is trying to cancel all the recordings Press ESC in order not to cancel the whole memory, press ENTER to confirm CLEAR LAST? (Enter) The operator is trying to cancel the last recording Press ESC in order not to cancel the last...

  • Page 107: Appendix 2 - Recordable Parameters: Symbols

    _____________________________________________________________MARVR2250 APPENDIX 2 – RECORDABLE PARAMETERS: SYMBOLS Symbol Description Voltage RMS value freq Network frequency Current RMS value Continuous component of voltage or current h01 - h49 Harmonic 01 - Harmonic 49 of voltage or current ThdV Factor of total harmonic distortion of the voltage ThdI Factor of total harmonic distortion of the current Active power...

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