Operating instructions 471 825
Contents
1. Lehr und Didaktiksysteme Physics Chemistry Biology Technology LD Didactic GmbH Leyboldstrasse 1 D 50354 Huerth 12 07 W2K CS Operating instructions 471 825 Power supply for He Ne laser 5 mW 471 825 Front 1 Key switch 2 Emission control lamp 3 Connection socket for the high voltage plug 4 Earth connection Back 5 Connection socket IEC 320 for the mains voltage 6 Fuse holder 7 Mains voltage selection switch 8 4mm safety laboratory socket for the safety loop Operating instructions 471 825 Page 2 4 Safety notes AN Read the operating instructions This apparatus delivers a high voltage which is hazardous on contact Only switch the apparatus on when the setting up is com plete Only make any changes to the circuit when the apparatus is switched off Before starting up the laser head connect the earth con nection to earth potential Connect the laser head to the switched off power supply only by means of the 2 pole HV plug Do not use sepa rated plugs Connection and separation of the high voltage connec tions between the laser and the power supply must be made while the power supply is switched off The HV plug on the laser may be separated from the power supply at the earliest three minutes after the mains voltage has been switched off After separating from the power supply the laser may still carry a capacitive charge It must be discharged by short circ2. arting voltage Operating voltage Operating current Mains connection Mains connection voltage Current draw Required micro fuse 230 V AC 115 VAC General data Dimensions Mass gt 10kV DC 2 2 2 6 kV DC 6 5 mA 230 V 50 60 Hz AC set for delivery switchable to 115 V 50 60 Hz 110 220 mA T 315 mA or T 300 mA slow blowing T 630 mA or T 600 mA slow blowing 23 cm x 21 cm x 7 cm 1 3 kg 5 Switching a power supply to a main voltage of 115 V The power supply is pre set at the manufacturer s to an input voltage of 230 V AC For switching to an input voltage of 115 V the mains selection switch on the back of the power supply has to be turned to the 115 V setting and the micro fuses values see section 4 are to be replaced LD Didactic GmbH Leyboldstrasse 1 D 50354 Huerth Germany Phone 49 2233 604 0 Fax 49 2233 604 222 e mail info Id didactic de by LD Didactic GmbH Printed in the Federal Republic of Germany Technical alterations reserved
3. er to He Ne lasers with a output power of 5 mW a typical operating voltage of 2 500 V and a current of 6 5 mA e g the He Ne laser head 5 mW 471 825 In order to prevent starting up by unauthorised persons the power supply for the He Ne laser 5 mW is equipped with a key switch An emission control lamp signals that the laser is oper ating A connection for a remotely controlled lock is integrated in order to allow connection of the laser system to a door con tact or an emergency off switch This connection can be short circuited by means of a jumper enclosed in the scope of deliv ery 2 Scope of delivery 1 Power supply for He Ne laser 5 mW 1 Cable for connecting the earth connection on the laser head to earth potential 1 Jumper 2 Keys In addition the following is recommended He Ne laser head 5 mW 471 821 3 Operation Important Observe the safety information Attach the He Ne laser head 5 mW to the laser sup port 470 010 Insert the HV plug of the laser head into the connec tion socket of the switched off power supply for the He Ne laser 5 mW Ensure that the plug is fully in serted Before starting up the laser head connect the earth connection to earth potential Connect the power supply to the alternating current network Release the power supply by operating the key switch The laser will start after three seconds Operating instructions 471 825 Page 4 4 4 Technical data Output St
4. uiting the two pins of the HV plug Never insert any electrically conducting objects e g screwdriver wire or similar into the high voltage socket Even after the apparatus has been switched off a voltage which will be hazardous on contact may still be present Ensure that the mains voltage given on the type plate corre sponds to that of your mains supply Only insert the mains plug into an earthed socket The pro tective effect must not be invalidated by using an extension lead without an earth connection Set up the apparatus in such a way that the mains switch and the switch on the apparatus are readily accessible The apparatus ventilation slots must not be covered Do not switch on the apparatus if it or the mains cable are visibly damaged The apparatus is only intended for operation in dry rooms without any explosion hazard Only use the apparatus for the intended purpose Before replacing fuses always first pull out the mains plug Only use fuses for the intended nominal current see Tech nical data After switching on the power supply laser radiation can immediately be emitted from the connected laser head Additional protection measures and behavioural rules for the operation of the laser head are to be observed These are found in the corresponding operating instructions Page 3 4 Operating instructions 471 825 1 Description The power supply for the He Ne laser 5 mW is used for supply ing pow
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