8250A Optical Power Meter Operation Manual
4.6.2 Remote Command List
4-19
Table 4-7 Remote Command List (1 of 7)
Item
Command
Description
Initial value
I/F
Availability
Power
ON
Factory
default
GPIB
USB
Compa
tible
mode
Calibra
tion
mode
Err2
Measure-
ment
Display unit
DW0
dBm unit display
DW1
W unit display
DW?
Query reply: DW0 to DW1
Measurement
range
R0
Auto range
R4
20 nW
R5
200 nW
R6
2000 nW
R7
20
W
R8
200
W
R9
2000
W
R10
20 mW
R11
200 mW
R?
Query reply: R0 or R4 to R11
RX
Sets the measurement range to the cur-
rent measurement range.
RX?
Reply to the current measurement
range query: Rdd
Trigger mode
M0
AUTO
M1
HOLD
M?
Query reply: M0 to M1
Sampling inter-
val
PR1
FAST
PR2
MED
PR3
SLOW
PR?
Query reply: PR1 to PR3
Sampling trigger E
Triggers the measurement when the
trigger mode is set to HOLD.
*TRG
Zero correction
ZR
Executes the ZERO correction
The execution time is approximately 4
seconds.
Wavelength set-
ting
WL data
Sets the measurement wavelength.
The setting range depends on the con-
nected sensor. Unit: nm
WL?
Query reply: WLdddd