Over the last 32 years, Delta have supplied virtually thousands of custom-built-equipment. Various industries spanning from caustic soda plants, aluminum plants to electrical equipment mfrs. like switchgear, motor/pumps appliances etc. For switchgear division of L & T, we have fabricated a range of equipment to suit their testing needs. Tailor made DPM's such are these with isolated 0 -10 VAC interface outputs or with band-pass comparator set-point limits have satisfied many different testing needs.