1. GENERAL DESCRIPTION
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2. SAFETY CONDITIONS
PX091 is a professional AC class dimmer 12 x 1200 W powered with 3 phases, 2 phases or 1
phase. The dimmer controls 12 independent channels, 1.2 kW each. Advanced electronics
allows to address easily each channel, to choose the control curve, to set output voltage limitation
and preheat level and to determine dimmer answer for the interruption of the DMX control signal
as well.
Built-in PLL, soft-start, soft-on and even-off systems allow for the reliable work even in the most
difficult conditions. Direct zero cross-over with opto-insulated DMX input guarantee high noise
resistance. Tricolour LEDs for monitoring each channel and DMX control signal. The device
comes in the casing suitable for wall mounting.
ATTENTION!!!
1. Improper connection of the protective wire (yellow-green strand) can cause electric shock.
2. Improper connection of the neutral wire (blue strand) automatically switches the dimmer off
and activates an acoustic alarm.
3. The dimmer can control resistantive and inductive circuits (loads) only. The dimmer cannot be
used for controlling the electronic transformers, electronic ballasts for fluorescent lamps and
other devices that have electronic circuits, unless the producer distincly states so.
PX091 AC Dimmer is powered directly from standard 230 V grid, what can cause electric shock
when safety rules are not observed. Therefore it is necessary to observe the following :
1. Installation, particularly power connection, should be performed by a person holding the
appropriate qualifications, according to description in the instruction manual.
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10. The device should be strictly protected against water and other liquids.
2. Dimmer can be connected only to socket which has protecting instalation in working order
(3- or 5-wire grid with the separate protective strand).
3. All the conductors should be protected against mechanical and thermal damage.
4. In the event of damaging any conductor, it should be replaced with a conductor of the same
technical data.
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5. The external devices can be connected to the dimmer with 3-strand 2.5 mm minimum cross-
section area only.
6. Each receiver has to be powered with a separate cable.
7. Power supply input must be protected with an external 3-phase residual circuit breaker with
over-current protection of 25A rated current and C-type characteristics.
8. After the installation is completed, check the neutralization efficacy of all powered devices.
All repairs demanding casing opening should be made with cut off power supply.
11. All sudden shocks, particularly dropping, should be avoided.
12. Device with damaged (cracked) casing should not be connected to the mains.
13. The device cannot be turned on in places with humidity exceeding 90%.
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14. The device cannot be used in places with temperature lower than 2 C or higher than 40 C.
15. Clean with damp duster only - dimmer has to be cut off the power supply.