Milli Ammeters Dual

Description

Used for measurement of small quantities of electrical charge. Levelling Screws for balancing the coil. Coil with mirror suspended between long suspension at the upper end and a spring at lower end. Clamping arrangement for transportation. Consistent sensitivity over a large period. Strip provided for making it a periodic. Res. in Ohm Crit. Damp. Res. in Ohms Sensitivity mm per m Coul. Sensitivity mm per m Amp. Time period in Seconds.

100	300	1000	12	2000
500	600	1400	12	3500

Description

For DC & AC current and voltage. The operation of these meters depend on the reaction of the current circulating in the moving coil and a field of a fixed permanent magnet. Considering the operational nature and design of these instruments. the scale is linear. Since, the direction of the movement rotation depends on the direction of the current flow (polarity) in the circuit. The moving coil multirange meter can be used on direct current circuit and also alternating current with a suitable rectifier inserted in the circuit.

Accuracy	DC + F.S.D. & AC + 2.5 F.S.D.
Scale Length	60 mm approx. with knife edge pointer and anti parallel mirror scale.
Dial Size	80x80 mm, rectangular.
Moving Coil Multirange Voltmeter has following ranges	DC & AC 0-5 - 25 - 50 - 100 - 250 - 500V
Moving Coil Multirange Ammeter has following ranges	DC & AC 10 mA - 100mA - 500 mA - 1A - 2.5A - 5A

Description

Housed in a ABS plastic case 300x150x300 mm with glass front and rear. Moving coil type with accuracy of + 2.5%. Basic sensitivity of meter is 5 mA, 100mV f.s.d. The meter can be used to demonstrate the working principle of AC or DC ammeters or voltmeters with the interchangeable plastic scales. DIFFERENT DIALS ARE AVAILABLE.

Description

Meters are designed for D.C. measurements to meet every need of schools, colleges and technical institutions. All meters are housed in moulded dust proof cases with zero-adjuster and have connections terminals. Type MO-65 Round.

Case	:	ABS Plastic
Accuracy	:	Class 2.5
Scale length	:	50 mm.
Overall size	:	100x90x90 mm. approx.