Operation - Violectric HPA V181 User Manual

THE CASE
The HPA V181's case as well as the front/rear panels are made of solid
aluminium. This choice of material ensures high mechanical stability and
resistance.
EARTH AND GROUND
The HPA V181's case is grounded. Internal reference ground is bridged
to protective earth by means of a jumper. If required, the jumper can be
set to 'LIFT' position (see also: page 7 "Earth/Ground concept", page
28 "Technical Appendix").
POWER SUPPLY
Mains power is provided via a three-pin IEC/CEE socket and mating
"cold-appliance" mains cord with Schuko-type plug. The device is set to
115 or 230V mains internally, whereas the actual voltage may vary
between 190 ... 240 volts (85 ... 120 volts for 115 V operation) for
flawless operation. A toroidal transformer provides the internal stabilized
operating voltages of +/- 18V .
MAINS FUSE
The 0.25A time-lag fuse is soldered in place on the circuit board. In
case, it must be replaced with a fuse of the same type only.
CAUTION !!
MIND THE SAFETY INSTRUCTIONS:
A blown fuse indicates an internal fault and
should be replaced during qualified repair or
servicing only !!
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