MA 4852 Power supply
Instrument operation
9
4 Instrument operation
4.1 Working with MA 4852
The MA 4852 is class I equipment. It means that all accessible conductive
parts (case) are connected to PE. For safety working the following shall apply:
Use wall socket with proper earthing of PE terminal!
Never disconnect PE wiring nor cut it, it is hazardous live!
Secondary circuit is floating, it is separated from mains input and
separated from PE. Keep secondary circuit floating or connect to
PE only if necessary!
4.2 Application of MA 4852
General application procedure for MA 4852 is as follows:
Before connection to mains supply keep I/O switch in O (OFF) position,
switch off automatic fuse and rotate dial knob c.c.w. to the limit position
(0 V position).
Connect MA 4852 into proper wall socket (see
4.1
).
Connect the circuit supplied from MA 4852 into proper pair of output
sockets. Pay attention on right polarity in case of applied DC sockets.**
Turn mains switch to I (ON), turn on output fuse and adjust output
voltage.
** If the circuit requires limited voltage range then the last two steps are
modified as follows:
Turn mains switch to I (ON), turn on output fuse and adjust output
voltage into required voltage range.
Turn off output fuse.
Connect the circuit supplied from MA 4852 into the proper pair of output
sockets.
Turn on output fuse.
Notes:
Earth socket is extension of PE entry and is intended for functional
earthing of supplied device or circuit if necessary.
Do not connect any DC or AC output sockets together. DC part is
extension of AC.
