Screw Gauge Micrometer Demonstration

Made from iron shaft with slots painted in black color. Hanger and Mass each of 500 gm. Total weight 2.5 kg. Hanger and Mass each of 1 kg. Total weight 5 kg.

A single beam scale, robust steel body with epoxy powder coated parts. The beam carries a sliding weight to indicate the weight from 0 to 5kg in divisions of 20 grams each. One hanger and one slotted mass is provided to increase the capacity of the balance. When only the hanger is suspended from the end of the beam the capacity increases to 10 kg and the reading starts from 5 kg onwards on the scale up to 10 kg. On adding the slotted mass on to the hanger the capacity increases to 15 kg and the reading starts from 10 kg onwards on the scale up to 15 kg. The tray is detachable and can be easily replaced in position by sliding on to fixed plate. Second scale is provided which reads 0 to 1 kg in division of 10 gms. Making the total capacity of balance 16 kg in to 10 gms.

Plastic, tubular Newton spring balances. Each range is colour coded for convenience and is graduated in both grams and Newtons. The spring mechanism is clearly visible and zero adjustment is incorporated.

Capacity	Sub-division
250gm	2.5N
500gm	5N
1 Kg	10N
2 Kg	20N
3 Kg	30N
5 Kg	50N

Spherometer Spherometer for the accurate measurement of the radius of curvature of spherical lenses. Made of brass with a vertical scale of 10-0-10mm. A micrometre scale with 100 divisions