RVFM Mains Joule Meter

The mains Joulemeter/Wattmeter is an accurate, light and compact unit. It is designed for class demonstration and also for student use. The meter measures the energy or power delivered to a mains appliance. Current transformers and sampling voltage transformer isolate the unit from the mains.

Can be used to compare the efficiency of different types of lamp bulbs, compare power consumption for lamp bulbs at different voltages (variable mains transformer unit required).

• Determines the energy consumed by domestic appliances
• Analogue outputs for datalogger or oscilloscope
• Built in timing function
• 1V full scale instantaneous power indication by a pair of 4mm meter output sockets
• Energy Indication by six 7-segment LEDs
• Suitable for Key Stage 3+ (age 11 and above)