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METREL A 1322, Instruction Manual

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METREL A 1322 Instruction Manual Download Page 30

A 1322 / A 1422 

Maintenance 

30 

 

7 

Maintenance 

 
Unauthorized person is not allowed to open the 3P-Active GT / Machine (Plus) adapter 
A 1322 / A 1422. There are no user replaceable components inside the adapter. 
 
 

7.1  Cleaning 

 
No special maintenance is required for the housing. To clean the surface of the  
3P-Active GT / Machine (Plus) adapter, use a soft cloth slightly moistened with soapy 
water or alcohol. Then leave the A 1322 / A 1422

 

to dry totally before use. 

 

Warnings:

 

 

 

Do not use liquids based on petrol or hydrocarbons! 

 

Do not spill cleaning liquid over the adapter! 

 
 

7.2  Service 

 
For repairs under warranty, or at any other time, please contact your distributor. 
 

Summary of Contents for A 1322

Page 1: ...3P Active GT Machine A 1322 3P Active GT Machine Plus A 1422 Instruction manual Version 2 1 6 Code no 20 751 979 Autorisierter Distributor...

Page 2: ...ed EU regulations Hereby Metrel d d declares that the A 1322 and A 1422 are in compliance with subjected EU directives The full text of the EU declaration of conformity is available at the following i...

Page 3: ...rity Active Polarity test 19 5 6 3 phase PRCD test 20 5 7 Power 21 6 Measurements with A 1422 according to IEC EN 60974 4 23 6 1 Insulation resistance supply circuit to protective circuit 23 6 2 Insul...

Page 4: ...4 4 34 8 1 11 Insulation resistance LN W supply circuit to welding circuit according to IEC EN 60974 4 35 8 1 12 Insulation resistance LN P supply circuit of class II equipment to accessible surfaces...

Page 5: ...of METREL PATs and machine testers A 1322 can be supplied from both 1 phase or 3 phase earthed power supply systems In addition A 1422 enables testing of electrical safety of welding machines accordin...

Page 6: ...st equipment or for the tested object Do not use the A 1322 A 1422 if any damage is noticed Consider all generally known precautions in order to avoid risk of electric shock while dealing with hazardo...

Page 7: ...ation A 1322 and A 1422 VDE 0701 0702 Pr fung nach Instandsetzung nderung elektrischer Ger te Wiederholungspr fung elektrischer Ger te Allgemeine Anforderungen f r die elektrische Sicherheit IEE Code...

Page 8: ...A 1322 A 1422 Description 8 3 Description Figure 3 1 A 1322 front panel Figure 3 2 A 1422 front panel...

Page 9: ...ined in chapter 4 2 and supply voltages other as defined in chapter 8 2 9 W1 Test socket for connection of welding output of welding machine A 1422 only 10 W2 Test socket for connection of welding out...

Page 10: ...and mains test socket of the master instrument and RS232 communication interface between the A 1322 A 1422 7 RS232 port and 3 phase adapter RS232 connector on the master instrument Optional connectio...

Page 11: ...1322 A 1422 works in TN TT supply systems with distributed N and or NPE and rated supply voltages UL N UL L 230 400 V and or 120 208 V Operation on 3 phase system without N conductor The A 1322 A 1422...

Page 12: ...y socket on A 1322 A 1422 See chapter 4 1 Connections Connect A 1322 A 1422 to mains supply Turn on fuse circuit breaker on A 1322 A 1422 The adapter beeps Turn on the master instrument Select the tes...

Page 13: ...s its status as described in following table LED indicator Description OK Continuous The A 1322 A 1422 adapter is ready for use Blinking Hardware error 1P Single phase supply system status Continuous...

Page 14: ...not connected Red icon Selected test measurement in not supported with A 1322 A 1422 adapter Warning messages After single measurement test is started A 1322 A 1422 adapter checks for proper test con...

Page 15: ...nce if necessary See chapter 5 1 1 Compensation of test leads resistance Connect power supply plug of tested appliance into proper test socket Connect P S probe of the master instrument to the accessi...

Page 16: ...re Refer to master instrument Instruction manual for details 5 2 Insulation resistance Riso Riso S and Substitute leakage current Isub Isub S measurements Refer to master instrument Instruction manual...

Page 17: ...test because of the way the test is performed For example the difference in both leakage measurements will be affected by the presence of neutral to earth noise suppression capacitors 5 3 Differential...

Page 18: ...surement Refer to master instrument Instruction manual chapter Single test measurements subchapter Touch leakage for detailed information Procedure Item Comment Prepare test system See chapter 4 3 Wor...

Page 19: ...test is suitable for cords without built in active protection In case that tested item is equipped with active switch RCD or similar that requires voltage for normal operation the active polarity test...

Page 20: ...ual chapter Single test measurements subchapter PRCD test for detailed information This test verifies that the PRCD protection works properly Procedure Item Comment Prepare test system Connect P S ter...

Page 21: ...t measurements subchapter Power for detailed information Power test is intended for testing operation of the appliance and measurement of power consumption Procedure Item Comment Prepare test system S...

Page 22: ...e 5 8 Power test connection Warning During the test DUT is powered as for normal operation Pay attention on possible electric shock and danger of rotating or moving parts Note Consider any displayed w...

Page 23: ...rking with the adapter Connect power supply plug of tested welding machine into proper test socket See Figure 6 1 Select Riso Rw test function on the master instrument Set Test parameter to LN PE Star...

Page 24: ...ed welding machine into proper test socket Connect welding terminals to W1 and W2 terminals on A 1422 See Figure 6 2 Select Riso Rw test function on the master instrument Set Test parameter to W PE St...

Page 25: ...ed welding machine into proper test socket Connect welding terminals to W1 and W2 terminals on A 1422 See Figure 6 3 Select Riso Rw test function on the master instrument Set Test parameter to LN W St...

Page 26: ...g machine into proper test socket Connect P S probe to accessible isolated conductive part of the welding machine See Figure 6 4 Select Riso Rw test function on the master instrument Set Test paramete...

Page 27: ...welding machine into proper test socket Connect welding terminals to W1 and W2 terminals on A 1422 See Figure 6 5 Enable L N change parameter on the master instrument for single phase welding machines...

Page 28: ...pply plug of tested welding machine into proper test socket See Figure 6 6 Enable L N change parameter on the master instrument for single phase welding machines Optional Start measurement Wait until...

Page 29: ...nect welding terminals to W1 and W2 terminals on A 1422 See Figure 6 7 Set Welding output type a c or d c Rated no load voltage and limits on the master instrument Optional Start measurement Wait unti...

Page 30: ...l maintenance is required for the housing To clean the surface of the 3P Active GT Machine Plus adapter use a soft cloth slightly moistened with soapy water or alcohol Then leave the A 1322 A 1422 to...

Page 31: ...hapter Insulation resistance Riso Riso S 8 1 3 Substitute leakage current including S probe Test terminals Isub Test socket A 1322 A 1422 16A 5p 32A 5p or 16A 3p Test terminals Isub S Test socket A 13...

Page 32: ...ultiple fault Test terminals Test socket A 1322 A 1422 16A 5p 32A 5p or 16A 3p Test plug A 1322 A 1422 16A 5p 32A 5p or 16A 3p Mode Active polarity Test voltage Mains supply voltage over current prote...

Page 33: ...smooth DC B B Phase 0 180 both Test mode single auto Design 2 pole 3 pole K Di varistor S 3 pole Test terminals Test socket A 1322 A 1422 16A 5p 32A 5p or 16A 3p Test plug A 1322 A 1422 16A 5p 32A 5p...

Page 34: ...ccuracy Um 0 V 600 V 1 V 3 of reading 2 D Operating range acc to EN 61557 2 0 08 M 199 9 M Nominal voltage Uiso 500 V 0 10 Short circuit current max 2 0 mA Limit Riso Off Custom 2 50 M 5 00 M Duration...

Page 35: ...9 9 M 0 1 M 5 of reading 100 0 M 199 9 M 0 1 M 10 of reading Output voltage Range Resolution Accuracy Um 0 V 600 V 1 V 3 of reading 2 D Operating range acc to EN 61557 2 0 08 M 199 9 M Nominal voltage...

Page 36: ...A 5 of reading 5 D Frequency response complies to EN 60974 4 Figure 1 Duration Off 2 s 3 s 5 s 10 s 30 s 60 s 90 s 120 s 180 s Change Yes No Delay 0 2 s 1 s 2 s 3 s 4 s 5 s Limit Iw Off Custom 3 50 mA...

Page 37: ...r m s Range Resolution Accuracy Urms 0 0 V 139 9 V 0 1 V 5 of reading 5 D Measurement circuit according to EN 60974 4 Figure 4 W output a c d c Rated no load voltage Custom 20 V 99 V Limit Up U0p 15...

Page 38: ...tegory Test sockets CAT II 300 V W1 W2 No CAT Ud c 200 V or Upeak 200 V Transient overvoltage 1500 V EB No CAT Umax 6 Va c No transient EMC Emission Class B portable equipment used in controlled EM en...

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