Kingfisher KI7300 Series, Руководство по эксплуатации и обслуживанию

Страница: 41 / 66

CALIBRATION AND MAINTENANCE
KI7000 UM-5
-
39 -
Power Meter Calibration:
Calibration is a transfer process. It is performed by setting up a
single mode laser source at a stable, but non-critical power level
between -10 and -30 dBm, and adjusting the meter reading to the
same value as that shown by a reference meter.
Required are laser light sources with accurately calibrated
wavelengths and good stability, a power meter with appropriate
calibrated wavelengths, single mode test leads, an anti-tamper label
and a 2.54 mm (0.1”) programming jumper. Check the calibration
certificates on your reference equipment to ensure current validity.
To display existing calibration offsets:
•
Put the instrument in calibration mode.
•
Press [Power Meter] and [-/+] to set the wavelength, then
[
] and [Max/Min] twice to display the current offset.
•
Record the offsets, re-enter or adjust offset values for each
wavelength.
To calibrate the meter at the selected wavelengths:
•
Measure and record the source power using the reference
meter.
•
Transfer the same power level to the meter to be calibrated,
press [
] and [Max/Min] to display power, then [-/+] to
adjust the reading to match the noted reference reading.
Note: The optical power is measured only when entering
this mode. It is not continuously updated. (Firmware
version 5.00 and above continuously updates the
measured power).
•
Press [ ] and [Max/Min] to read and note the new stored
calibration offsets, and then [Set] to store and exit, or [Exit] to
abandon and exit.
•
Check the source power with the reference meter to ensure
source drift is within limits.
Remove the programming shunt, and place a new sticker over the
aperture.