Sharp QT-80W Instruction Manual download pdf (Page 17)

Replace both lamps, take out the lamp replaced first and refit it. Provided

lamp and ECG are o.k. both lamps should then light.

2.5.1 Lamp ignition for QTi

Lamp start Preheat

Ignition time < 1 second

Max. number of switching cycles > 100,000 cycles

2.5.2 Lamp ignition for QT

to operate T5-

fluorescent lamps

QT-FH MULTI, QT-FQ, QT…F/CW

Lamp start Preheat

Ignition time < 0.5 second

Max. number of switching cycles > 100,000 cycles

2.5.3 Off- Time for

Optimum Preheat

Start

All QUICKTRONIC to operate T5/∅ 16 mm- fluorescent lamps

…HE, FQ

…HO and FC start the lamps at any time with optimum

preheat start even after a turn-off followed by an immediate lamp

restart. OSRAM QUICKTRONIC ignite the lamp always with optimum

preheating of the electrodes. A particular off-time with regards to

lamp life is not necessary.

2.6 Behaviour in Response

to Lamp Defects

What do we mean by lamp defect or end-of-lamp life?

In most cases, it is not possible to see from outside which lampholders are

assigned to which ECG-terminals, so if you insert lamps and they fail to

start automatically you should take out the first lamp again and refit it. Both

lamps should then light.

Lamp replacement of 2- and multilamp luminaires proceed as follows:

Insert the lamps. If at 2- or multilamp luminaires lamp ignition doesn’t work

automatically, take out the lamp replaced first and refit it. Reignition of both

lamps works automatically.

2.6.1 One-Lamp Operation

with Multi-Lamp ECG

What are the requirements?

Parallel Circuitry Series Circuitry

Start

QTP 2x...

FQ 2x...

Zünd

FQ 2x...

Start

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 92 93

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Sharp QT-80W Instruction Manual Page 17

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