Arroyo Instruments LaserSource 4200 Series Manuel d'utilisateur télécharger pdf (Page 19)

4200-DR Series LaserSource User’s Manual · Page 19

Connecting to the 4200-DR

A laser diode is very sensitive to electro-static discharge (ESD), over-voltage,

and over-current conditions. When connecting a laser to the 4200-DR, make

sure proper ESD procedures are taken. In addition, it is critical that the proper

current limit and voltage limit be set for the laser diode. Exceeding the laser

diode’s rated current or voltage can damage or destroy the laser diode, and the

4200-DR’s hardware protection features can only protect the laser diode if these

limits are properly set.

The Laser anode and cathode outputs are electrically isolated from ground, as

are the photodiode inputs. In addition, the photodiode inputs are optically

isolated from the laser outputs, ensuring complete electrical isolation of the drive

circuit and photodiode measurement circuit.

Arroyo Instruments carries cables specifically designed for these applications,

both with a DB connector on the device end or with a bare wire pigtail for

terminating the connection into a custom mount or device:

Connector to

connector

Connector to pigtail

(bare wire)

1220B

1221B

See the manual for your laser (and fixture) for additional safety and operational

information.

If you will be making your own cables, you must ensure that sufficiently sized

wires are used to carry the current, or excessive heating may occur in the cable.

NOTE

Connections to the 4200-DR and the laser diode fixture

must be secure. Tighten any screws on the DB-9

connectors, and make sure all connections are in good

condition. Poor or intermittent connections can damage

or destroy the laser diode.

CAUTION

The interlock connections must be kept isolated from all

other connections and from earth ground. Failure to do

so may damage the instrument.

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Arroyo Instruments LaserSource 4200 Series Manuel d'utilisateur Page 19