Below are the devices that 4TEK has repaired:

Repair three-phase transformer ratio measuring device TR-MARK III, Raytech brand:

Repair Sonel MMR-630, MMR-620 DC resistance measuring bridge:

Repair C.A 6250 DC resistance measuring bridge:

Repair Megger OTS60SX transformer oil insulation measuring device (no photo yet)

Repair Megger DLRO 200 contact resistance measuring device:

Repair Megger TTR310 ratio measuring device:

Repairing Tettex 2818 dielectric loss measuring device (No photo yet):

Repairing Tettex 2816 dielectric loss measuring device (No photo yet):