EurotestCOMBO MI 3125 BT Short instruction manual
Contents
1. Lim High limit fault loop impedance value if applicable 24 Quick test guide BS3836 15H 5s z 0 49n Isc 46TH Lim 4 195 L PE M n EO n 215 Displayed results Z Fault loop impedance Isc Prospective fault current Lim High limit fault loop impedance value if applicable MI 3125 BT EurotestCOMBO Quick test guide 2 2 7 Line impedance phase neutral phase phase Voltage drop Zline a Used for testing between phases on a single or 3 phase system e g testing L to N L1 to L2 L2 to L3 etc AU a To check that a voltage in the installation stays above acceptable levels if the highest current is flowing in the circuit n Set function Set subfunction aa ISI DPI ae LE t e a a P A i iit ter te ae j d RE ey es ae 1 Fuse type sets limit OFF BS88 2 BS3036 BS88 3 BS1362 B C D Fuse current rating 3 A 200 A Fuse tripping time 0 4 s 5 s AUmax maximum voltage drop 3 0 9 0 25 MI 3125 BT EurotestCOMBO Quick test guide Connection diagram Zline STEP 1 d 5 Press the Cd key Displayed results Displayed results AU Voltage drop Z Line impedance Isc Prospective short circuit current Isc Prospective short circuit current Line impedance at measured point Lim High limit line impedance value if Zref Reference impedance applicable 26 MI 3125 BT EurotestCOMBO Quick test guide 2 2 8 Earthing resistan2. Ree 0 000 N V3 Measured value to be calibrated Reading at calibrated value is 0 00 O now 11 MI 3125 BT EurotestCOMBO Quick test guide 2 2 Measurements 2 2 1 Online Voltage and frequency Phase sequence AC Voltage measurement and frequency measurements phase sequence a Monitors voltages between L N L PE and N PE at the same time Values shown in real time a System can also be used on 3 phase systems for monitoring voltages between phases a Phase sequencing should be checked on 3 phase systems a System shows values e g 1 2 3 or 3 2 1 which relate to the green blue and brown test leads to show rotation E Wang Ulm Ali fi 58 60Hz Ulee 2314 nee wate Na re pee a ee RD a IM ji III 1 lad ipa a 12 MI 3125 BT EurotestCOMBO Quick test guide 3 View results 12 Sr f oH IHz Olz rad f 5H HHz Wiss Sr za 1 2 3 Wiss 3T1U Yi 3 2 1 U23 Srel U23 ST L L PE N mm L PE N ELL Ent 5 MER e371 EEE no 374 T 375 Displayed results Ul 1 n 2 Voltage between phase and neutral conductors or between phases L1 and L2 Ul 1 pe 3 Voltage between phase and protective conductors or between phases L1 and L3 Un 2 pe 3 Voltage between neutral and protective conductors or between phases L2 and L3 1 2 3 Correct connection CW rotation sequence 3 2 1 Invalid connection CCW rotation sequence f frequency 13 MI 3125 BT Eu
3. 1U L 55 8mz L PE N E Es 9 916 4 AUTO amb xl 456 hHme 35 fms wos forms 1l ima fi Far 2358Bms Shams L PE N b TI BE 20 Quick test guide PE L3 B VN M M ica Displayed results Uc Contact voltage RL Fault loop resistance Rmax High limit fault loop resistance Displayed results t Tripping time Uc Contact voltage Displayed results IA Tripping current Uci Contact voltage at IA tl Tripping time Displayed results Uc Contact voltage x1 x5 x 2 Tripping times la Tripping current 22 MI 3125 BT EurotestCOMBO Quick test guide 2 2 6 Loop Fault loop impedance Zloop a High current loop test a Very quick and efficient for testing non RCD protected circuits Zs rcd a Low current loop test a Multitude of test performed over a longer period of time for increased accuracy a Guaranteed not to trip the RCD Set function Set subfunction a Zloop a Zsrcd a 0 5 a a t l ttl FIT I VERTEILTE T ee LE 3 Set parameters and limits Zloop a Fuse type sets limit OFF BS88 2 BS3036 BS88 3 BS1362 B C D a Fuse current rating 3 A 200 A a Fuse tripping time 0 4 s 5 s MI 3125 BT EurotestCOMBO c s 5 Press the key 6 View results Zloop loot BS5856 15H _ 0 46 Izc 495H Lim 4 19 L PE N b TE 0 LE V 230 Displayed results Z Fault loop impedance Isc Prospective fault current
4. Eurotest Comi EurotestCOMBO MI 3125 BT Short instruction manual Version 2 2 Code no 20 751 578 S METREL Distributor Manufacturer METREL d d Ljubljanska cesta 77 1354 Horjul Slovenia web site http www metrel si e mail metrel metrel si C Mark on your equipment certifies that this equipment meets the requirements of the EU European Union concerning safety and electromagnetic compatibility regulations 2014 METREL No part of this publication may be reproduced or utilized in any form or by any means without permission in writing from METREL MI 3125 BT EurotestCOMBO Table of contents Table of contents 1 Star upgulde etd 4 1 1 Safety and operational considerations u02200220220000n nen nnn nenn ene nenn 4 1 2 Instrument description Front and connector panel 5 1 3 Instrument description Meaning of symbols 2 02220220022002nnennnnenen nenn 5 1 4 Function selector switch and instrument display u2200240220 eaaa nne nennen 7 To Batey TANIA asa ag aa aa ga AN es ee cae TAN se 7 NAO WANING RAKA een een 8 ROT vENCDIACING MIS CS see ee 8 1 7 Warany Gi Repa S anna keinen 9 t8 Contact Metrel UK ces at en ne na ernennen 10 2 Quick test guide succes EO yap NENEFNPUFE E ER VERENIREN SA EN FRE FUN VE EMI KI E SUI SPI UE EN EUN EE 11 2 4 Null tie 7 6 SPRRPRRERRPREPERERRPEREPREEFECRERBERLE
5. FEEREELEERERFELEFOFEEEEREETEERLERRERETEEREFEPEREEEFRRERER 11 2 2 Measurement aan 12 2 2 1 Online Voltage and frequency Phase sequence AC Voltage measurement and frequency measurements phase sequence 12 2 2 2 Insulation resistance For testing the MQ value of the insulation between WIGS c Oe 14 2 2 3 Continuity for testing resistance of earth conductors and equipotential DONANO TN EE LT Emm 16 2 24 RING GONtn liy REESE 18 2 2 9 RCD testing 3 functions for testing RCDSs eeeeeeeeeusse 21 2 2 0 EOOP Ault loop IMpedance anne DUI Dent ato EUH FIVE 23 2 2 Line impedance phase neutral phase phase Voltage drop 25 228 ESHhilgTesiSldliCe usitatius basa tuse caa EEEE 27 MI 3125 BT EurotestCOMBO Start up guide 1 Start up guide 1 1 Safety and operational considerations Warnings a This document is not a supplement to the Instruction manual d The A symbol on the instrument means Read the Instruction manual with special care for safe operation The symbol requires an action If the test equipment is used in a manner not specified in this user manual the protection provided by the equipment could be impaired Read this user manual carefully otherwise the use of the instrument may be dangerous for the operator the instrument or for the equipment under test Do not use the i
6. ce e Main earthing arrangements lightning systems local earthings etc can be verified with the earthing resistance test O Set function Set parameters and limits FEARTA RE LER DE PA DE DE DE SA SA DE tee ae Se iat ED I en ILI a A E O E WAN a High limit resistance Q sets limit off 1 O 5 KO 3 Connection diagram 4 Press the key View results 189 Displayed results n d 3 020 y R Earth resistance Reti 9k RP O KR Rp Resistance of S potential probe P i Rc Resistance of H current probe 2 MI 3125 BT EurotestCOMBO Quick test guide 28
7. el via the wholesaler from which the product was purchased All defective products will be replaced or repaired within policy period For these items a full refund will only be issued if a sufficient replacement is not available Any shipping return shipping costs are not refundable Metrel UK shall not be held liable for any loss or damage resulting from the use or performance of the products In no event shall Metrel UK be liable to the customer or its customers for any special indirect incidental exemplary or punitive damages resulting from loss of use interruption of business or loss of profits even if Metrel UK has been advised of the possibility of such damages If the customer s unit is out of warranty but needs repairs a quote for repair will be provided via the wholesaler through which the instrument was sent in Notes a Any unauthorized repair or calibration of the instrument will infringe the product s warranty a All sales are subject to Metrel UK s Standard Terms and Conditions a full copy of which is available Metrel UK s office Metrel UK reserves the right to change the conditions at any time Any typographical clerical or other error or omission in any sales literature quotation price list acceptance of offer invoice or other documentation or information issued by Metrel UK shall be subject to correction without any liability on the part of the customer a Specifications and designs of goods are subject to change b
8. ets and connection points in the final ring circuit a Maximal results are to be considered 20 MI 3125 BT EurotestCOMBO Quick test guide 2 2 5 RCD testing 3 functions for testing RCDs Uc a Fortesting contact voltage on exposed earthed conduclive parts RCD t For testing the time it takes for an RCD to trip a Tripping currents can be multiplied by x1 2 x1 x2 and xd RCD a RCD ramp test a RCD ramp slowly increases the tripping current to find the minimum fault current required to trip an RCD a Useful in faultfinding nuisance RCD tripping AUTO a A automated test of the most important parameters associated with an RCD via one press of a button a Ifa faulty parameter is noticed during the autotest the test will stop to highlight the need for further investigation Set function Set subfunction a Uc o RCDt a RCDI a AUTO ie See Same oe ee 01 i 1 1113 11 11 v6 l mute tat tat 232 Limit contact voltage 25 V 50 V Nominal differential RCD tripping current 10 mA 1000 mA Multiplier of nominal differential RCD tripping current x75 x1 x2 x5 P type IG 5 test current waveform plus starting polarity Pee nn um m 21 MI 3125 BT EurotestCOMBO Connection diagram gt Press the ud key 6 View results AmA G Sau uc Sy v REl 240 Fmax 1667 L PE H b 29 0 S 229 4 3BmH xl 2 G c 300 Ll B ZU llci amp
9. he PE terminal is detected MI 3125 BT EurotestCOMBO Start up guide 1 4 Function selector switch and instrument display I I A VEU pum ty ANANA errr errr rere eet tn 111111111 EX Rm S M TE ITEE G RE oe Zi A a _ Legend Function switch Function or sub function name Measuring parameters and limit values Result field In this field the main and sub results together with the PASS FAIL ABORT status are displayed Online voltage and output monitor Message field In this field battery status and warnings messages related to the actual measurement are displayed me a 1 5 Battery handling a When replacing battery cells or before opening battery fuse compartment cover disconnect any test leads accessory connected to the instrument and switch off the instrument Hazardous voltage can exist inside the instrument a Insert all cells correctly If this is not performed correctly the instrument will not operate and the battery could be discharged a Ifthe instrument is not used for a long period of time remove all of the battery from the battery compartment to protect the instrument from leakage a Alkaline or rechargeable Ni MH battery cells size AA can be used The operating hours are given for cells with a nominal capacity of 2100 mAh Do not recharge alkaline battery cells The battery will begin charging as soon as the power supply adapter is connected to the instrument The
10. hock while working on electrical installations MI 3125 BT EurotestCOMBO Start up guide 1 2 Instrument description Front and connector panel Instrument description Display TEST button Arrow key Arrow key MEM button Function Selector Backlight button On off button HELP to enter help screens CAL button 10 TAB button for changing test parameters 11 Pass indicator 12 Fail indicator O pO S Se Connectors Test lead socket Cover Charger socket USB connector RS232 serial connector PM pA Iu 1 3 Instrument description Meaning of symbols The online voltage and output terminal monitor 21 D e Online voltage is displayed together with test terminal indication All 271 three test terminals are used for selected measurement b no e Online voltage is displayed together with test terminal indication L and axi _N test terminals are used for selected measurement 1 1 10 b ne n a L and PE are active test terminals N terminal should also be connected 230 for correct input voltage condition A L N polarity changed ca Test leads resistance in Continuity measurement is not compensated E Test leads resistance in Continuity measurement is compensated MI 3125 BT EurotestCOMBO Start up guide Message field battery status Battery capacity indication Low battery I Battery is too weak to guarantee correct result Replace or recharge the batter
11. in built protection circuits control the charging procedure MI 3125 BT EurotestCOMBO Start up guide et Power supply socket polarity Note Only use the power supply adapter delivered from manufacturer or distributor of the test equipment to avoid possible fire or electric shock 1 6 Maintenance 1 6 1 Replacing fuses Fuse M 0 315 A 250 V 20x 5 mm This fuse protects internal circuitry of low value resistance function if test probes are connected to the mains supply voltage by mistake Warnings a Disconnect any test leads accessories from the instrument and switch off the instrument before opening battery fuse compartment cover Hazardous voltage can exist inside the instrument a In case a fuse has blown in the instrument follow the instructions in instruction manual to replace it a Replace any blown fuses with exactly the same type of fuse Inserting the wrong fuse into the instrument can impair the operator s safety and or damage the instrument MI 3125 BT EurotestCOMBO Start up guide 1 7 Warranty amp Repairs Metrel UK s instruments have a two years warranty against defects in materials or workmanship Accessories and other supplementary products have a one year warranty against defects in material or workmanship Any potentially defective items should be returned to Metrel accompanied by information regarding the faults that was incurred It is recommended that any defective equipment is sent back to Metr
12. ister on www metrel co uk to receive updates of PC SW and firmware of the meters Calibrate your Meter Metrel offers a calibration service of all Metrel equipment Contact Metrel UK on 01924 245000 and ask for the calibrations department Repair Metrel offers a repair service of all Metrel equipment Contact Metrel UK on 01924 245000 and ask for the repairs department Ask a technical question Metrel offers a Technical Advice Line every Mon Thu from 8 00 a m till 5 00 p m and Fridays from 8 00 a m till 4 p m Get training on Metrel meters Metrel offers training on site or at the office subject to a charge 10 MI 3125 BT EurotestCOMBO Quick test guide 2 Quick test guide 2 1 Null the leads Starting the tester 1 Insert the fully charged batteries 2 Press the On Off button 3 Connect test cable to the instrument 0 Step a Select Continuity function with the function selector switch first The following menu is displayed 2 Step a Short test leads first as shown N N PE PE L extension lead Null Box 3 Step a Press the TEST key in order to perform regular measurement Result close to 0 00 O is displayed 4 Step a Press the CAL key After performing test leads compensation first measured value and then 0 00 O is displayed If calibration was carried out successfully CAL leads indicator L _ is shown in the Continuity function CALIBRATION CALIBRATION Rin 1 000 Rin 0 000 Ree 1 000
13. nstrument or any of the accessories if any damage is noticed If a fuse blows in the instrument follow the instructions in this manual in order to replace it Consider all generally known precautions in order to avoid risk of electric shock while dealing with hazardous voltages Do not use the instrument in supply systems with voltages higher than 550 V Service intervention or adjustment is only allowed to be carried out by a competent authorized personnel Use only standard or optional test accessories supplied by your distributor Consider that protection category of some accessories is lower than of the instrument Test tips and Tip commander have removable caps If they are removed the protection falls to CAT Il Check markings on accessories cap off 18 mm tip CAT II up to 1000 V cap on 4 mm tip CAT II 1000 V CAT Ill 600 V CAT IV 300 V The instrument comes supplied with rechargeable Ni Cd or Ni MH battery cells The cells should only be replaced with the same type as defined on the battery compartment label or as described in this manual Do not use standard alkaline battery cells while the power supply adapter is connected otherwise they may explode Hazardous voltages exist inside the instrument Disconnect all test leads remove the power supply cable and switch off the instrument before removing the battery compartment cover All normal safety precautions must be taken in order to avoid risk of electric s
14. ring circuits can be simplified 0 Set function 2 Set subfunction CER a r1 r2 rN a R1 R2 RI RN I3 03001 Ir unto REN Cite III DERTT EE AVES TUTE tores Connection diagrams for measurement of r1 r2 rN L o O mains voltage O switched off 4 Press the key a Commit results to r1 r2 rN with TAB key Before measurement results can be cleared with TAB key 18 MI 3125 BT EurotestCOMBO View results Displayed results r1 Ring resistance of line conductors committed and measured r2 Ring resistance of protective conductors committed and measured rN Ring resistance of neutral conductors committed and measured Quick test guide RING rlsare rh rH B 4n T B z64 LLL 3 Connection diagrams for measurement of R1 R2 R1 RN L 00 mains voltage N 0 0 switched off PE eeee C p c 4 Press the co key a Commit results to R1 R2 R1 RN with TAB key o Before measurement results can be cleared with TAB key 19 MI 3125 BT EurotestCOMBO Quick test guide View results Displayed results RING RI EN Ei RZ R1 RN Reference test value committed and FI EN EG 34 9 340 measured Fi Rz B Soe B AZ R1 R2 Reference test value committed and ra 2850 SA TR measured r1 r2 4 Calculated reference value r1 rN 4 Calculated reference value RI tEH 6B 344 Ni Rl R2 8 3534 ___N Repeat measurement of R1 R2 R1 RN on other socket outl
15. rotestCOMBO Quick test guide 2 2 2 Insulation resistance For testing the MO value of the insulation between wires Set subfunction i p Set function ISO N E ISO L E ISO L N ISO L L De ah Per y pru i ie Os Bs CERETI IN NP pof oto Ij uq uM 1 UL A 1 LEG 3 Set parameters and limits a Nominal test voltage 50 VDC 1000 VDC a Low limit resistance Q sets limit off 0 01 MO 200 MO 14 MI 3125 BT EurotestCOMBO Quick test guide R 5 Press and hold the key until result has stabilised a All tests are performed between the L1 and L2 test leads 6 View results At Sanu M9 Displayed results R Insulation resistance Um Instrument test voltage 15 MI 3125 BT EurotestCOMBO Quick test guide 2 2 3 Continuity for testing resistance of earth conductors and equipotential bonding Set function Set subfunction TE E syn TULI LANG NGA en DPI DITIDLPUI ae 011111 1 e ae 1 3 Set parameters and limits a High limit resistance Q sets limit off 0 1 Q 20 0 Q 16 MI 3125 BT EurotestCOMBO Quick test guide EU o Press the key 6 View results Displayed results R R2 resistance result R Result at positive polarity R Result at negative test polarity 17 MI 3125 BT EurotestCOMBO Quick test guide 2 2 4 Ring Continuity a With Easy Switch A1214 the resistance measurements in final
16. y Metrel UK at any time without notice to the customer Metrel UK reserves the right to make any changes in the specification of goods which are required to conform with any applicable statutory or EC requirements or where goods are to be supplied to Metrel UK s specification which do not materially affect their quality or performance a Ifa condition was found to be invalid or void it would not affect the overall validity of the remainder of the conditions a Metrel UK are excluded from liability for any delays or failure to comply where the reason is beyond Metrel UK s control a No order which has been accepted by Metrel UK may be cancelled by the customer except with the agreement in writing of Metrel UK and on terms that the customer shall indemnify Metrel UK in full against all loss including loss of profit costs including the cost of all labour and materials used damages charges and expenses incurred by Metrel UK as a result of cancellation The minimum charge for such cancellation will be 25 96 of the total value of the goods ordered MI 3125 BT EurotestCOMBO Start up guide 1 8 Contact Metrel UK Metrel UK Unit 1 Hopton House Ripley Drive Normanton Industrial Estate Normanton West Yorkshire WF6 1QT Tel 44 0 1924 24 50 00 Fax 44 0 1924 24 50 07 E mail info metrel co uk Web www metrel co uk Update your meter Metrel offers a service of updating your software of firmware to the latest developments Reg
17. y cells Recharging in progress if power supply adapter is connected Message field measurement warnings messages Warning High voltage is applied to the test terminals Warning Phase voltage on the PE terminal Stop all the measurements immediately and eliminate the fault before proceeding with any activity Measurement is running Consider any displayed warnings Measurement can be performed after pressing the TEST key Consider any displayed warning after starting the measurement Measurement prohibited Consider any displayed warnings and check online voltage terminal monitor Result s can be stored High electrical noise was detected during measurement Results may be impaired RCD tripped during the measurement The trip limit may be exceeded as a result of leakage current flowing to the PE protective conductor or capacitive connection between L and PE conductors Instrument overheated Temperature of internal components in the instrument reached top limit Measurement is prohibited until the temperature is lower then that limit High resistance to earth of test probes Results may be impaired Fuse F1 is broken HE e e ea D Cw Ed ie ka Result field Measurement result is inside pre set limits PASS Measurement result is out of pre set limits FAIL Measurement is aborted Consider displayed warnings and messages OW Sound warnings Continuous Sound Warning Dangerous voltage on t
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