AL-E501A SPOT GALVANOMETER

Description

SCOPE OF LEARNING:

Spot Galvanometer finds extensive use as a D.C. null detector in wheat stone bridges and potentiometers
TECHNICAL SPECIFICATIONS:
- MAINS: It is a' mains' operated instrument but can operate on a 6 volt battery also. There is provision to operate this instrument can be operated on both as well as main supply 220 volts, 50Hz or 6 Volt Capacity.
- Light Source: The light Source is 6 Volt and 0.3Amp bulb giving a bright spot on the scale.
- Construction: The galvanometer has built in lamp and scale arrangement and housed in a Bakelite case. The highly sensitive moving coil system is suspended in a taut band manner in a uniform field of permanent magnet.
- Scale: The scales are 150mm long and end zero use.
- Zero Adjustment: The spot of light can be set at any point on the scale with the help of zero adjusting knobs.
- Sensitivity Control: The sensitivity is controlled by a 2-pole, 6 way switch. The switch Positions are D,1/10,1/100,1/1000 and s/c
- Working Voltage : 220VAC
- Time Period : 2 seconds

Cat. No	Galvanometer Resistance In ohms	Critical Damping Resistance	Sensitivity Voltage
502A	100 ohms	1000 ohms	0.04 to 0.05 µA per mm deflection
502B	600 ohms	7000 ohms	0.04 µA per mm deflection