Maximum Demand / Bimetallic Ammeters

Models : BM96, BM96S

• Principal of Operation
• The bimetal movement responds and indicates the mean current
• loading over a specified period of time (T); say 15min.
• A black pointer which is attached to the bimetal spiral moves in response to the current (heating) in bimetal spiral.
• A red pointer (slave pointer or memory pointer ) is driven by the black pointer.
• Red pointer remains at the maximum position to which the black pointer has reached during any period of time.
• Further when the loading is reduced, the red pointer remains at the maximum value.
• This enables the operator to know the maximum loading of the system without continuously watching the instrument.
• A sealing / locking facility is also provided on the reset knob to prevent tampering of the reading at the red pointer.
• For locking use 0.5mm Ø wire.
• A protective back-cover for operator safety & easy to use mounting clamps are provided as standard accesories.