Table of Contents
Advertisement
c.
Enter the Laser Current Source calibration mode by sending the following command over GPIB:
LAS:CAL:LDI
d.
The internal cal procedure will begin by setting the Laser output current to approximately 25% of its full
range. Allow the current to settle for at least 10 seconds.
If this calibration value is to be measured and entered remotely via a GPIB controlled DMM, for example, the
actual value of the current should not be entered until the cal procedure is ready to receive it.
e.
Check to see if the internal cal procedure is ready for the measurement. Send the following query to the
module:
LAS:CAL:STATUS?
The cal procedure is ready for a measurement if it returns the value "1". Query the status until the value
that is returned is "1".
f.
Enter the actual measured current in mA by sending the following command:
LAS:CAL:MEAS ( current in mA )
The internal cal procedure will store the actual measured value and briefly change its
measurement status to "0" to indicate that it is not yet ready for another measurement. This will
occur after each time a new measurement is entered.
g.
The cal procedure will set the output current to approximately 75% of its output range. Allow the
current to settle for at least 10 seconds.
h.
Check to see if the internal cal procedure is ready for the measurement. Send the following query to the
module:
LAS:CAL:STATUS?
The cal procedure is ready for a measurement if it returns the value "1". Query the status until the value that
is returned is "1".
I.
Enter the second measured current in mA by sending the following command:
LAS:CAL:MEAS ( current in mA )
After you have entered the second measured current, the internal calibration procedure will perform the
calibration for the laser current setpoint, current measurement, and current limit circuits. The cal procedure
will then set the status to the value "2" to indicate that it has finished.
CALIBRATING AND TROUBLESHOOTING THE 3916338 CURRENT SOURCE MODULE
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
e.g. LAS:CAL:MEAS 267.878
NOTE
e.g. LAS:CAL:MEAS 527.986
PAGE 7
CHPT 5
Advertisement
Chapters
Table of Contents
