IM-P408-04
EMM Issue 7
7
B850-W and B850-P Boiler House Energy Monitor
The symbols, used on the product, mean:
Equipment protected throughout by double insulation or
reinforced insulation.
Functional earth (ground) terminal, to enable the product to
function correctly.
Not used to provide electrical safety.
Caution, risk of electric shock.
Caution, risk of danger, refer to accompanying documentation.
Optically isolated current source or sink.
Caution, Electrostatic Discharge (ESD) sensitive circuit. Do not
touch or handle without proper electrostatic discharge
precautions.
ac - alternating current
dc - direct current