Turn the Mains switch on.
The mains switch will illuminate and the Timer will display the last lamp-on time period.
Select lamps as required:
The lamp switches are laid out on the Console to reflect the position of the lamps on the overhead frame.
Switch UP will turn the lamp ON. The red indicator lamp above the switch will illuminate.
Switch CENTRE will turn lamp OFF.
Switch DOWN will allow the lamp to be controlled by the Timer. The green indicator lamp below the switch will illuminate when the Timer turns the lamp on.
To Change the Lamp-on Time.
The Timer display shows Minutes to a maximum of 9999.
Press and hold the (P)rogram button for 4 seconds.
This delay is to prevent accidentally changing the time.
The display will show t1.SP in red on the top line and the current lamp-on time setting in green on the lower line.
Press either the UP or DOWN arrow button as required to set the new lamp-on time as shown on the green display. Press and hold will allow faster changes of time.
Press the (P)rogram button twice. (0u.1t should always be left set at 1).
Press the (F)unction button to transfer the new lamp-on time period to the main display.
The Timer is now ready.
To start the lamp-on time period, press the START button.
The OUT indicator will light, the selected lamps will turn on and the Timer display will count down, showing the lamp-on time remaining.
When the lamp-on time period has elapsed, the OUT indicator and the lamps will turn off.
To start a new lamp-on time period without changing the time, press the START button.
The lamp-on time period can be cancelled at any time when the lamps are on, by pressing the (F)unction button to turn the lamps off and reset the Timer.
The lamp-on time period cannot be changed during a timing cycle. If the lamp-on time period is incorrect, reset the Timer by pressing the (F)unction button to turn the lamps off and reset the Timer.
The lamp-on time period cannot be changed during a timing cycle. If the lamp-on time period is incorrect, reset the Timer by pressing the (F)unction button to immediately turn the lamps off and reset the Timer.
Fault Finding Hints.
All tests and repairs should be carried out by a qualified electrician.
If the Mains switch does not illuminate when switched on, check that the mains power plug is securely seated in the wall socket, the wall socket is switched on and the connection to the console is securely plugged in.
If the appropriate red indicator lamp illuminates when the switch is switched UP, but the lamp does not come on, the Lamp is probably faulty and should be changed.
Due to the high operating temperature of Halogen lamps, the glass can crack unless it is perfectly clean. Thoroughly clean the replacement lamp with a cloth moistened with methylated spirits and dry with a soft cloth before installing the lamp. Do not touch the lamp when installing, use a soft dry cloth to handle the lamp.
BEFORE removing the Console front panel to check the fuses, or carrying out any tests or repairs, completely disconnect the console from the Mains supply, do not rely on just switching the wall socket off.
The lamps in this unit are wired in pairs. If a pair of lamps e.g. 1 & 2, 3 & 4, etc do not illuminate, check the appropriate Power Supply.
|Lamps 1 & 2||Power Supply 1||Mains Fuse 1|
|Lamps 3 & 4||Power Supply 2||Mains Fuse 2|
|Lamps 5 & 6||Power Supply 3||Mains Fuse 3|
|Lamps 7 & 8||Power Supply 4||Mains Fuse 4|
The Halogen Lamp Power Supplies used in this unit have an electronic protection circuit built in which switches the output off in case of short circuit or overload in the secondary circuit as well as an open circuit. After removing the fault, the power supply will restart automatically.
To test the power supply, disconnect the lamp circuit at the screw terminals under the cover at the 12 volt end and connect a 35 watt (minimum) load. Due to the high switching frequency, a conventional multimeter will read somewhat less than 12 volts, usually about 6 to 7 volts A. C.
If the Mains switch is illuminated but none of the lamps illuminate when the switches are switched up, then check that the multi-pole plug is securely connected to the multi-pole socket on the bed leg.
Circuit Diagrams of the Console and the overhead lamp frame are provided inside the Console cabinet and should not be removed.
To remove the Electronic Control panel from its cabinet, remove the 6 countersink screws that secure the Front panel. Remove the front of the cabinet and unplug the Mains lead. Unplug the cable from the Bed leg and draw the cable up through the hole in the bottom of the cabinet. There is no need to detach the hcable from the Control Panel.