ILX Lightwave LDX-3200 Series User Manual page 94

PARAMETERS Two <nrf values>; the first represents the LASER current tolerance, in mA, with a range of 0.1
to 100.0 mA; and the second represents the time window, in seconds, with a range of 0.001 to
50.000 seconds.
POINTS OF
INTEREST The LDX-3200 Series Precision Current Source defaults to a tolerance of 10.0 mA for 5 seconds,
unless changed by the LASer:TOLerance command.
If the LDX-3200 Series Precision Current Source is operated in P mode, the current tolerance
parameter is not used. Instead a fixed value of 50 µA is used for the I
1 mW (LDX-3210 or LDX-3220) is used for P
be adjusted.
If the tolerance is set too tight it may never be achieved. This is due to the calibration of the set point and
EXAMPLES "Las:Tol 0.5,10" -action: the LDX-3200's LASER current source will be in tolerance when the
LASER current is within 0.5 mA for 10.000 seconds.
¨ Front Panel
n Remote
The LASer:TOLerance? query allows the programmer to determine how the LASER current tolerance is set.
SYNTAX DIAGRAM
-where the response consists of two values, the first is the current tolerance, in mA; and the
second is the time window, in seconds.
POINTS OF
INTEREST The tolerance of the LDX-3200 Series Precision Current Source LASER current may be used to
delay programming after an "LASer:OUTput 1" command is issued or the set point is changed.
A change of the output into or out of tolerance flag sets a flag in the LASER status event
register, and so entering or exiting LASER current tolerance may be used to generate service
requests.
COMMAND REFERENCE
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NOTE
measurement values.
: :
LAS
PAGE 49
current. A fixed value of
PD
power, and only the time window parameter may
PD
LASer:TOLerance?
?
TOL
CHPT 4