Oriel 68805 User manual

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68805-M
250 Long Beach Boulevard
Stratford, CT 06497-0872
Phone: [phone]
Fax: [phone]
E-MAIL [email protected]
50 watt to 200 watt
He, HgXe & Hg
ARC LAMP POWER SUPPLY
MODEL 68805
Please read these instructions completely before operating this equipment. If there are any questions or problems
regarding the use of this equipment, please contact: ORIEL INSTRUMENTS - or - the representative from whom this
equipment was purchased.
L.O.T. - ORIEL S.A. L.O.T. - ORIEL GmbH L.O.T. - ORIEL Ltd.
9 Avenue De Laponie Im Tiefen See 58 1 Mole Business Park
Z.A. De Courtaboeuf D-64293 Darmstadt Leatherhead
91951 Les Ulis Cedex Germany Surrey KT22 7AU
France England
Phone: [phone] Phone: [phone] Phone: [phone]
Fax: [phone] Fax: [phone] Fax: [phone]
L.O.T. - ORIEL ITALIA FAIRLIGHT BV L.O.T. - ORIEL SUISSE
Viale Dei Mille, 20 Member L.O.T. - Oriel Group Moulin-du-Choc
20129 Milano Marshallweg 45 1122 Romanel-Sur-Morges
Italy 3068 JN Rotterdam Switzerland
Netherlands
Phone: [phone] Phone: [phone] Phone: [phone]
Fax: [phone] Fax: [phone] Fax: [phone]
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

TABLE OF CONTENTS
I. SAFETY ..................................................................1
II. INTRODUCTION ............................................................2
III. SPECIFICATIONS ...........................................................4
IV. CONTROLS AND CONNECTIONS ..............................................5
V. CIRCUIT DESCRIPTION .....................................................11
VI. CALIBRATION AND TROUBLESHOOTING .......................................14
WARRANTY AND RETURNS
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

68805-M
ARC LAMP POWER SUPPLY
1
I. SAFETY
SAFETY NOTES:
- Connections to or from any electrical device must never be made while the device is switched
on.
- The Oriel Model 68805 Power Supply is such a device. It has an open circuit voltage of >160
volts when the start switch is pressed, and could be dangerous if care is not exercised when the
power supply is switched on. Please follow these precautions when operating the power supply:
Make all input and output connections before turning the power supply on.
Do not use the power supply without its cover.
Ensure that the output terminals are properly connected to the lamp housing or
lamp socket before turning on the power supply.
Don't open the power supply or disconnect the output leads while the power
supply is on.
- Follow the lamp or lamp house manufacturer's recommendations and precautions when handling
and using lamps.
- Never touch the lamp's quartz envelope with uncovered fingers; definitely not when operating
the lamp or immediately after shutdown. Also, follow this precaution during lamp installation to
avoid damage to the lamp.
- Do not start the lamp with the output control set above the current rating for the lamp.
- The lamp is a source of constant current. To prevent overpowering of the lamp as it ages,
monitor its current on regular basis.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

68805-M
ARC LAMP POWER SUPPLY
2
II. INTRODUCTION
The Oriel model 68805 arc lamp power supply was designed to meet the needs of the researcher who
demands a highly regulated source of current for proper operation of arc lamp light sources. Constant
current operation of these sources of radiation is required whenever a radiometric measurement is
being made or whenever a highly stable light output is needed.
Arc lamp sources will be operated in constant current mode by the Oriel Model 68805 power supply
with the output voltage being dependent on the arc lamp’s impedance. The Oriel Model 68805 power
supply will provide a constant current of up to 11 amperes with a load voltage range of 0 to 100 volts.
A power limit, which limits the product of output voltage and current to 300 watts, protects the unit
from output overloads. A constant current power supply regulates current even into a short circuit,
andthemodel 68805 is safely limited to
12 amperes or 300 watts . Also, the inrush current to the lamp
is limited to a maximum of 12 amperes, and the reduced discharge current minimizes electrode
erosion when starting the arc lamp. The Oriel model 68805 Arc Lamp Power Supply includes all of
the circuitry to power the lamps, to operate the required external ignitor or ignitor built into Oriel arc
lamp housing, and to meter the output parameters.
The following Oriel arc lamps may be operated with the model 68805 Arc Lamp Supply:
MODEL DC DC
NO. DESCRIPTION VOLTAGE (V) CURRENT (A)
6251 75 Watt Xe 14 5.4
6263 75 Watt Xe (Ozone free) 14 5.4
6254 150 Watt Xe UV (Ozone free) 20 7.5
6255 150 Watt Xe (Ozone free) 20 7.5
6356 150 Watt Xe 20 7.5
6282 50 Watt Hg 22 2.3
6281 100 Watt Hg 20 5
6283 200 Watt Hg 47-65 3.1-4.2
6291 200 Watt HgXe 20-25 8-9.5
6292 200 Watt HgXe (Ozone free) 20-25 8-9.5
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com