Caution – Gentec-EO P-LINK User Manual

Page 9

P-

LINK User’s Manual Revision 15.0

Gentec Electro

Front Panel Description :

See figure 3-1 below

EXTERNAL POWER SUPPLY INPUT JACK:

Input voltage required: 9-12 VDC/100 mA.

Note: The external power supply input is provided only for the P-LINK with the RS-232
Serial Connection Option.

CAUTION

Permanent damage may occur to the optical meter if an external
power supply other than the GENTEC-EO 200130, 200960,
SPU15A-105 or SPU15A-104 is used. Please call GENTEC-EO or
your local distributor if extra power supplies are needed for a
particular setup.

USB INTERFACE CONNECTOR:

This interface allows remote control and data transfers between the P-LINK and a computer
that has a USB communication port. With the RS-232 P-LINK, this connector is use as a RS-
232 com port.

ANALOG OUTPUT:

For monitoring laser average power or energy by using external equipment such as a chart
recorder, a computer with an analog interface, a voltmeter, etc.

The output signal represents a DC analog voltage proportional to the amplified and anticipated
power detector response in the case of a power measurement. In the case of an energy
measurement (energy mode), the output signal is a DC voltage representing the pulse energy
value.

The user must enter the maximum value in the Settings-

>SET Max Analog Out Range …

menu. This value is the value at which the analog output equal 2.05 V. That provides the
best signal-to-noise ratio. The measured power or energy is then related to the output voltage
and to the selected range according to the following equations:

Vout = Measurement * 2.05 / Max Analog Out Range

For example with a 10W max analog range:

2.05 V corresponds to 10 W
1.025 V corresponds to 5 W

Another useful example: To set the analog output so that 1V corresponds to a measurement
of 56W, the Max Analog Out Range must be set to 20.5 according to the following equation:

Max Analog Out Range = 56 * 2.05

Specifications on the analog output:

Maximum output voltage:

2.05 V

Output impedance:

274



Connector type:

Female 1/8” jack

PROBE INPUT JACK:

The P-LINK uses a DB-15 female connector to mate with the detector heads (probes).