8250A Optical Power Meter Operation Manual
7.5 Calibration Operation
7-7
Figure 7-5 Current Measurement Calibration Flow
Calibration mode: CAL11
Next range?
All data initialization: XINI0
Range setting: XRn
Input open
Calibration data entry: XPC0
OK?
Range setting: XRn
Full-scale data output from VIG
Calibration data entry: XPCfull
Next range?
OK?
Input open
Zero data check
in all ranges
Full-scale data output from VIG
OK?
Full-scale data check
in all ranges
Calibration result
data
Save/display
If an error occurs, initialize the range and
perform the calibration flow again from the zero
calibration.
Calibration point
Range
Command
Zero
Full scale
20 nA
XR4
OPEN
19.0000 nA
200 nA
XR5
OPEN
190.000 nA
2000 nA
XR6
OPEN
1900.00 nA
20
A
XR7
OPEN
19.0000
A
200
A
XR8
OPEN
190.000
A
2000
A
XR9
OPEN
1900.00
A
20 mA
XR10
OPEN
19.0000
mA
50 mA
XR11
OPEN
050.000
mA
The calibration can be performed in any range.
Zero: Open the input to set the current value to
zero.
Perform the zero calibration.
If an error occurs, initialize the range and
perform the zero calibration again.
Example: 19.0000 nA
Perform the full-scale calibration.
If an error occurs, initialize the range and
perform the calibration flow again from the zero
calibration.
[Zero calibration
in all ranges]
No
Yes
No
Yes
[Full-scale
calibration in
all ranges]
[Zero data check]
[Full-scale
data check]
No
Calibration data saving: XWR
End of calibration CAL0
Range data initialization: XINIn
*
Perform the full-scale calibration after
the zero calibration.
Calibration result
data
Save/display