Quick Answer: The Desk Stand Meter is a centre-zero DC galvanometer in an ABS desk case, with a dual scale reading ±50 µA and 30 mV-0-30 mV. It has a moving coil on pivot and jewel bearings and a knife-edge pointer.
Last updated: October 2026
Key Features
Centre-zero dual scale: ±50 µA and 30 mV-0-30 mV
Moving coil on pivot and jewel bearings
Accuracy class 2.5
Scale length approx. 60 mm with knife-edge pointer
4 mm red and black sockets; external zero-adjust screw
ABS desk-stand housing
Technical Specifications
Specification
Value
Range
±50 µA / 30 mV-0-30 mV, centre zero
Movement
Moving coil, pivot and jewel bearing
Accuracy class
2.5
Scale length
Approx. 60 mm, knife-edge pointer
Terminals
4 mm sockets, red and black
Zero adjustment
External mechanical screw
Housing
ABS
Operating temperature
-5°C to +45°C
About This Product
A centre-zero galvanometer shows which way a small current flows and when it drops to nothing, which is what bridge and potentiometer experiments need. Students use it to find the balance point on a Wheatstone bridge, meter bridge or potentiometer and to detect induced currents.
Frequently Asked Questions
What range does the Desk Stand Meter read?
It has a centre-zero dual scale of ±50 µA and 30 mV-0-30 mV.
Why is the Desk Stand Meter scale centre-zero?
The pointer can swing either way, so the meter shows the direction of current as well as the null point when a bridge is balanced.
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