purchase of instrumentation lab equipments purchase proposal of instrumentation lab equipments in mechanical engineering department - 2 autocollimator xy measurement range: minimum of 3000 x 3000 arc sec. nfocal length: between 200 mm to 240 mm. nclear aperture: between 30 mm to 50 mm. nmagnification: between 10 x to 15 x. nresolution: 3 to 6 arc sec. nleast deviation on reticle: 1 to 1.2 minute of arc. . ninterface: usb 2.0 or higher. nbattery: rechargeable li-ion battery. nbattery backup for the illumination: minimum 10 hrs. nillumination source: laser or led. power supply: 230 v ± 10 v, 50 hz., manufacturer warranty n 3 bevel protractor 6 and 12 blade, high precision angle gauge for accurate angle measurement, attachable to height gauge, blade length - 150 / 300 mm with acute attachment, metallic in color, stainless steel, isi std. 4 dial gauge carbide contact point, range: 0-25 mm, graduation - 0.001mm, 5 optical flats diameter - 60mm, flatness - 0.2 micro meter, isi std., with wooden box packing 6 sine bar made of corrosion resistant hardenend steel, precision ground on al sides, min distance of 5 inch between cylinder at ends 7 vernier cailiper 0-150mm analog, stainless steel, measuring range - 0-150 mm, accuracy - 0.02 mm 8 wire gauge round type, material- stainless steel, metric scale - 0-36 standard, manufacturer warranty, isi std.