7E
3. Lamp
Because of its high internal pressure, there might be a risk that the Discharge lamp
would explode during operation. The lamp emits intense UV radiation which is harmful to
the eyes and skin. The high luminance of the arc can cause severe damage to the retina
if looks directly at the lamp.
Discharge lamp : MSD 250/2 (IM-8S)
HTI 150W (IM-7S)
1. Always switch off the main supply and never handle
the lamp or luminaries when is hot.
2. Do not touch the bulb with bare hands. If this
happens, clean the lamp with denatured alcohol and
wipe it with a lint free cloth before installation.
3. The lamp generates UV radiation. Never operate the
lamp without appropriate shielding.
4. When burning, the lamp operates at high pressure and
there is a slight risk of arc tube rupture. The risk
increases with age, temperature and improper handling
of the lamp. Do not use the lamp any longer than its
specified life.
5. Make sure the lamp is located in the center of the
reflector for the best spot. Adjust lamp position by
screws A, B and C.
5.5 DMX512 Connection
The DMX512 is widely used in intelligent lighting control, with a maximum of 512 channels.
1. If you use a controller with 5 pins DMX connector, you need to use a 5 to 3 pin adapter.
2. At last unit, the DMX cable has to be terminated with a terminator. Solder a 120-ohm 1/4W
resistor between pin 2(DMX-) and pin 3(DMX+) into a 3-pin XLR-plug and plug it in the
DMX-output of the last unit.
3. Connect the unit together in a “daisy chain” by XLR plug from the output of the unit to the
input of the next unit. The cable can not branched or split to a “Y” cable. DMX512 is a very
high-speed signal. Inadequate or damaged cables, soldered joints or corroded connectors
can easily distort the signal and shut down the system.
4. The DMX output and input connectors are pass-through to maintain the DMX circuit, when
power is disconnected to the unit.
5. Each lighting unit needs to have an address set to receive the data sent by the controller.
The address number is between 0-511 (usually 0 & 1 are equal to 1).
6. The end of the DMX512 system should be terminated to reduce signal errors.
7. 3 pin XLR connectors are more popular than 5 pins XLR.
3 pin XLR: Pin 1: GND, Pin 2: Negative signal (-), Pin 3: Positive signal (+)
5 pin XLR: Pin 1: GND, Pin 2: Negative signal (-), Pin 3: Positive signal (+)
In case of replacement of the lamp or maintenance, do not open the
fixture within 15 minutes until the unit cools down after switching off.
IM-8S
IM-7S
