supply of design, supply, erection, testing and commissioning of air dryer test bed as per rdsos technical circular no. rdso/2011/el/tc/0108, rev 0 dated 07.03.2011. air dryer test bench should be plc based model and the test bench should have data acquisition dedicated software, digital display and printing facility along with one no. additional portable/hand held dew point meter for testing on locomotive as per rdsos latest guidelines. air dryer test bed to be supplied as per scope of work/technical data sheet at annexure enclosed. calibration certificate for all the measuring instruments provided in the test bench should be provided along with supply.design, supply, erection, testing and commissioning of air dryer test bed as per rdsos technical circular no. rdso/2011/el/tc/0108, rev 0 dated 07.03.2011. air dryer test bench should be plc based model and the test bench should have data acquisition dedicated software, digital display and printing facility along with one no. additional portable/hand held dew point meter for testing on locomotive as per rdsos latest guidelines. air dryer test bed to be supplied as per scope of work/technical data sheet at annexure enclosed. calibration certificate for all the measuring instruments provided in the test bench should be provided along with supply.,design, supply, erection, testing and commissioning of air dryer test bed as per rdsos technical circular no. rdso/2011/el/tc/0108, rev 0 dated 07.03.2011. air dryer test ben ch should be plc based model and the test bench should have data acquisition dedicated s oftware, digital display and printing facility along with one no. additional portable/hand held dew point meter for testing on locomotive as per rdsos latest guidelines. air dryer t est bed to be supplied as per