EV TECHNICIAN TRAINING
Multimeter se Testing
DC voltage, continuity, resistance aur current measurement ki practical jaankari.
What You Will Learn
Multimeter mechanic ka sabse zaroori testing tool hai. Sahi setting, sahi probe aur sahi reading samajhna bahut zaroori hai.
1
Multimeter ki Basic Setting
Probe kahan lagayein aur kaunsa mode chunein
Black probe saamaanya taur par COM socket me lagaya jata hai.
Voltage aur resistance ke liye red probe ko V-ohm socket me lagayein.
Battery voltage ke liye DC voltage mode chunein.
Wire tootne ki jaanch ke liye continuity/buzzer mode use karein.
Resistance test sirf power OFF circuit par karein.
Practical Tip:
Current/amps socket me probe lagakar battery voltage ko seedha measure karna khatarnak ho sakta hai.
2
Continuity aur Resistance Test
Wire sahi hai ya andar se toota hai
Jis circuit ko test karna hai uski power OFF karein.
Continuity mode me dono probes ko aapas me chhukar meter ki awaaz jaanchein.
Wire ke dono siro par probes lagayein.
Kam resistance aur beep wire ke jude hone ka sanket ho sakta hai.
OL ya bahut zyada resistance open circuit ka sanket ho sakta hai.
High-current connection ko sirf continuity test se poori tarah sahi na maanein.
Practical Tip:
Powered circuit par continuity ya resistance test na karein.
3
Current yaani Ampere Test
Ye test savdhani se karein
Voltage ko aam taur par parallel me measure kiya jata hai.
Current measurement me meter ko circuit ke raste me lagana padta hai.
Battery ke positive aur negative ke beech current mode me probe lagane se short circuit ho sakta hai.
High current EV battery ka current saamanya multimeter se seedha measure karne ki koshish na karein.
High current ke liye uchit DC clamp meter ya sahi testing method ka use karein.
Practical Tip:
Naye mechanic ke liye pehle voltage testing achhi tarah seekhna sabse zaroori hai.
Practical Checklist
COM aur V-ohm socket pehchanein.
DC voltage measure karein.
Continuity test karein.
Resistance test karein.
Current mode ki safety samjhein.
Safety First
Meter ki voltage aur CAT rating gaadi ke system ke liye upyukt honi chahiye.
Module Complete?
Checklist complete karne ke baad next module par move karein.
Training information is for general diagnostic learning. Always follow the vehicle and component manufacturer's specifications.