PRINCIPLES OF OPERATION
Primary Alternating Current (Ac) Power Circuit
The ME-526A/USM can be operated from a 115 or 230-volt, 50 to 400-Hz source. A slide switch, indicating 115 or
, connects the primary
of the ME-526A/USM power transformer
in parallel for 115-volt operation
or series for
volt operation. A 0.20/A (ampere) fuse (115-volt operation) or a 0.10 A fuse must be installed.
A dc voltage is present at the RECORDER terminals that is proportional to the rf millivoltmeter digital display. When
the digital display is full scale, the voltage at the RECORDER terminals will be 10 volts dc with the polarity marked on
the front panel.
Connections for Remote Operation and External Programming.
External connections can be made to the ME-526A/USM for remote operation and external programming. Additional
equipment, not supplied with the ME-526A/USM, is required for this function.